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For MD-IQ on Family Practice News, but a regular topic for Rheumatology News
To D or not to D? Vitamin D doesn’t reduce falls in older adults
Higher doses of vitamin D supplementation not only show no benefit in the prevention of falls in older adults at increased risk of falling, compared with the lowest doses, but they appear to increase the risk, new research shows.
Based on the findings, supplemental vitamin D above the minimum dose of 200 IU/day likely has little benefit, lead author Lawrence J. Appel, MD, MPH, told this news organization.
“In the absence of any benefit of 1,000 IU/day versus 2,000 IU/day [of vitamin D supplementation] on falls, along with the potential for harm from doses above 1,000 IU/day, it is hard to recommend a dose above 200 IU/day in older-aged persons, unless there is a compelling reason,” asserted Dr. Appel, director of the Welch Center for Prevention, Epidemiology, and Clinical Research at Johns Hopkins Bloomberg School of Public Health in Baltimore.
“More is not always better – and it may even be worse,” when it comes to vitamin D’s role in the prevention of falls, he said.
The research, published in Annals of Internal Medicine, adds important evidence in the ongoing struggle to prevent falls, says Bruce R. Troen, MD, in an accompanying editorial.
“Falls and their deleterious consequences remain a substantial risk for older adults and a huge challenge for health care teams,” writes Dr. Troen, a physician-investigator with the Veterans Affairs Western New York Healthcare System.
However, commenting in an interview, Dr. Troen cautions: “There are many epidemiological studies that are correlative, not causative, that do show a likelihood for benefit [with vitamin D supplementation]. … Therefore, there’s no reason for clinicians to discontinue vitamin D in individuals because of this study.”
“If you’re monitoring an older adult who is frail and has multiple comorbidities, you want to know what their vitamin D level is [and] provide them an appropriate supplement if needed,” he emphasized.
Some guidelines already reflect the lack of evidence of any role of vitamin D supplementation in the prevention of falls, including those of the 2018 U.S. Preventive Services Task Force, which, in a reversal of its 2012 recommendation, now does not recommend vitamin D supplementation for fall prevention in older persons without osteoporosis or vitamin D deficiency, Dr. Appel and colleagues note.
No prevention of falls regardless of baseline vitamin D
As part of STURDY (Study to understand fall reduction and vitamin D in you), Dr. Appel and colleagues enrolled 688 community-dwelling participants who had an elevated risk of falling, defined as a serum 25-hydroxyvitamin D [25(OH)D] level of 25 to 72.5 nmol/L (10-29 ng/dL).
Participants were a mean age of 77.2 years and had a mean total 25(OH)D level of 55.3 nmol/L at enrollment.
They were randomized to one of four doses of vitamin D3, including 200 IU/day (the control group), or 1,000, 2,000, or 4,000 IU/day.
The highest doses were found to be associated with worse – not better – outcomes including a shorter time to hospitalization or death, compared with the 1,000-IU/day group. The higher-dose groups were therefore switched to a dose of 1,000 IU/day or lower, and all participants were followed for up to 2 years.
Overall, 63% experienced falls over the course of the study, which, though high, was consistent with the study’s criteria of participants having an elevated fall risk.
Of the 667 participants who completed the trial, no benefit in prevention of falling was seen across any of the doses, compared with the control group dose of 200 IU/day, regardless of participants’ baseline vitamin D levels.
Safety analyses showed that even in the 1,000-IU/day group, a higher risk of first serious fall and first fall with hospitalization was seen compared with the 200-IU/day group.
A limitation is that the study did not have a placebo group, however, “200 IU/day is a very small dose, probably homeopathic,” Dr. Appel said. “It was likely close to a placebo,” he said.
Caveats: comorbidities, subgroups
In his editorial, Dr. Troen notes other studies, including VITAL (Vitamin D and Omega-3 Trial) also found no reduction in falls with higher vitamin D doses; however, that study did not show any significant risks with the higher doses.
He adds that the current study lacks information on subsets of participants.
“We don’t have enough information about the existing comorbidities and medications that these people are on to be able to pull back the layers. Maybe there is a subgroup that should not be getting 4,000 IU, whereas another subgroup may not be harmed and you may decide that patient can benefit,” he said.
Furthermore, the trial doesn’t address groups such as nursing home residents.
“I have, for instance, 85-year-olds with vitamin D levels of maybe 20 nmol/L with multiple medical issues, but levels that low were not included in the study, so this is a tricky business, but the bottom line is first, do no harm,” he said.
“We really need trials that factor in the multiple different aspects so we can come up, hopefully, with a holistic and interdisciplinary approach, which is usually the best way to optimize care for frail older adults,” he concluded.
The study received funding from the National Institute of Aging.
A version of this article originally appeared on Medscape.com.
Higher doses of vitamin D supplementation not only show no benefit in the prevention of falls in older adults at increased risk of falling, compared with the lowest doses, but they appear to increase the risk, new research shows.
Based on the findings, supplemental vitamin D above the minimum dose of 200 IU/day likely has little benefit, lead author Lawrence J. Appel, MD, MPH, told this news organization.
“In the absence of any benefit of 1,000 IU/day versus 2,000 IU/day [of vitamin D supplementation] on falls, along with the potential for harm from doses above 1,000 IU/day, it is hard to recommend a dose above 200 IU/day in older-aged persons, unless there is a compelling reason,” asserted Dr. Appel, director of the Welch Center for Prevention, Epidemiology, and Clinical Research at Johns Hopkins Bloomberg School of Public Health in Baltimore.
“More is not always better – and it may even be worse,” when it comes to vitamin D’s role in the prevention of falls, he said.
The research, published in Annals of Internal Medicine, adds important evidence in the ongoing struggle to prevent falls, says Bruce R. Troen, MD, in an accompanying editorial.
“Falls and their deleterious consequences remain a substantial risk for older adults and a huge challenge for health care teams,” writes Dr. Troen, a physician-investigator with the Veterans Affairs Western New York Healthcare System.
However, commenting in an interview, Dr. Troen cautions: “There are many epidemiological studies that are correlative, not causative, that do show a likelihood for benefit [with vitamin D supplementation]. … Therefore, there’s no reason for clinicians to discontinue vitamin D in individuals because of this study.”
“If you’re monitoring an older adult who is frail and has multiple comorbidities, you want to know what their vitamin D level is [and] provide them an appropriate supplement if needed,” he emphasized.
Some guidelines already reflect the lack of evidence of any role of vitamin D supplementation in the prevention of falls, including those of the 2018 U.S. Preventive Services Task Force, which, in a reversal of its 2012 recommendation, now does not recommend vitamin D supplementation for fall prevention in older persons without osteoporosis or vitamin D deficiency, Dr. Appel and colleagues note.
No prevention of falls regardless of baseline vitamin D
As part of STURDY (Study to understand fall reduction and vitamin D in you), Dr. Appel and colleagues enrolled 688 community-dwelling participants who had an elevated risk of falling, defined as a serum 25-hydroxyvitamin D [25(OH)D] level of 25 to 72.5 nmol/L (10-29 ng/dL).
Participants were a mean age of 77.2 years and had a mean total 25(OH)D level of 55.3 nmol/L at enrollment.
They were randomized to one of four doses of vitamin D3, including 200 IU/day (the control group), or 1,000, 2,000, or 4,000 IU/day.
The highest doses were found to be associated with worse – not better – outcomes including a shorter time to hospitalization or death, compared with the 1,000-IU/day group. The higher-dose groups were therefore switched to a dose of 1,000 IU/day or lower, and all participants were followed for up to 2 years.
Overall, 63% experienced falls over the course of the study, which, though high, was consistent with the study’s criteria of participants having an elevated fall risk.
Of the 667 participants who completed the trial, no benefit in prevention of falling was seen across any of the doses, compared with the control group dose of 200 IU/day, regardless of participants’ baseline vitamin D levels.
Safety analyses showed that even in the 1,000-IU/day group, a higher risk of first serious fall and first fall with hospitalization was seen compared with the 200-IU/day group.
A limitation is that the study did not have a placebo group, however, “200 IU/day is a very small dose, probably homeopathic,” Dr. Appel said. “It was likely close to a placebo,” he said.
Caveats: comorbidities, subgroups
In his editorial, Dr. Troen notes other studies, including VITAL (Vitamin D and Omega-3 Trial) also found no reduction in falls with higher vitamin D doses; however, that study did not show any significant risks with the higher doses.
He adds that the current study lacks information on subsets of participants.
“We don’t have enough information about the existing comorbidities and medications that these people are on to be able to pull back the layers. Maybe there is a subgroup that should not be getting 4,000 IU, whereas another subgroup may not be harmed and you may decide that patient can benefit,” he said.
Furthermore, the trial doesn’t address groups such as nursing home residents.
“I have, for instance, 85-year-olds with vitamin D levels of maybe 20 nmol/L with multiple medical issues, but levels that low were not included in the study, so this is a tricky business, but the bottom line is first, do no harm,” he said.
“We really need trials that factor in the multiple different aspects so we can come up, hopefully, with a holistic and interdisciplinary approach, which is usually the best way to optimize care for frail older adults,” he concluded.
The study received funding from the National Institute of Aging.
A version of this article originally appeared on Medscape.com.
Higher doses of vitamin D supplementation not only show no benefit in the prevention of falls in older adults at increased risk of falling, compared with the lowest doses, but they appear to increase the risk, new research shows.
Based on the findings, supplemental vitamin D above the minimum dose of 200 IU/day likely has little benefit, lead author Lawrence J. Appel, MD, MPH, told this news organization.
“In the absence of any benefit of 1,000 IU/day versus 2,000 IU/day [of vitamin D supplementation] on falls, along with the potential for harm from doses above 1,000 IU/day, it is hard to recommend a dose above 200 IU/day in older-aged persons, unless there is a compelling reason,” asserted Dr. Appel, director of the Welch Center for Prevention, Epidemiology, and Clinical Research at Johns Hopkins Bloomberg School of Public Health in Baltimore.
“More is not always better – and it may even be worse,” when it comes to vitamin D’s role in the prevention of falls, he said.
The research, published in Annals of Internal Medicine, adds important evidence in the ongoing struggle to prevent falls, says Bruce R. Troen, MD, in an accompanying editorial.
“Falls and their deleterious consequences remain a substantial risk for older adults and a huge challenge for health care teams,” writes Dr. Troen, a physician-investigator with the Veterans Affairs Western New York Healthcare System.
However, commenting in an interview, Dr. Troen cautions: “There are many epidemiological studies that are correlative, not causative, that do show a likelihood for benefit [with vitamin D supplementation]. … Therefore, there’s no reason for clinicians to discontinue vitamin D in individuals because of this study.”
“If you’re monitoring an older adult who is frail and has multiple comorbidities, you want to know what their vitamin D level is [and] provide them an appropriate supplement if needed,” he emphasized.
Some guidelines already reflect the lack of evidence of any role of vitamin D supplementation in the prevention of falls, including those of the 2018 U.S. Preventive Services Task Force, which, in a reversal of its 2012 recommendation, now does not recommend vitamin D supplementation for fall prevention in older persons without osteoporosis or vitamin D deficiency, Dr. Appel and colleagues note.
No prevention of falls regardless of baseline vitamin D
As part of STURDY (Study to understand fall reduction and vitamin D in you), Dr. Appel and colleagues enrolled 688 community-dwelling participants who had an elevated risk of falling, defined as a serum 25-hydroxyvitamin D [25(OH)D] level of 25 to 72.5 nmol/L (10-29 ng/dL).
Participants were a mean age of 77.2 years and had a mean total 25(OH)D level of 55.3 nmol/L at enrollment.
They were randomized to one of four doses of vitamin D3, including 200 IU/day (the control group), or 1,000, 2,000, or 4,000 IU/day.
The highest doses were found to be associated with worse – not better – outcomes including a shorter time to hospitalization or death, compared with the 1,000-IU/day group. The higher-dose groups were therefore switched to a dose of 1,000 IU/day or lower, and all participants were followed for up to 2 years.
Overall, 63% experienced falls over the course of the study, which, though high, was consistent with the study’s criteria of participants having an elevated fall risk.
Of the 667 participants who completed the trial, no benefit in prevention of falling was seen across any of the doses, compared with the control group dose of 200 IU/day, regardless of participants’ baseline vitamin D levels.
Safety analyses showed that even in the 1,000-IU/day group, a higher risk of first serious fall and first fall with hospitalization was seen compared with the 200-IU/day group.
A limitation is that the study did not have a placebo group, however, “200 IU/day is a very small dose, probably homeopathic,” Dr. Appel said. “It was likely close to a placebo,” he said.
Caveats: comorbidities, subgroups
In his editorial, Dr. Troen notes other studies, including VITAL (Vitamin D and Omega-3 Trial) also found no reduction in falls with higher vitamin D doses; however, that study did not show any significant risks with the higher doses.
He adds that the current study lacks information on subsets of participants.
“We don’t have enough information about the existing comorbidities and medications that these people are on to be able to pull back the layers. Maybe there is a subgroup that should not be getting 4,000 IU, whereas another subgroup may not be harmed and you may decide that patient can benefit,” he said.
Furthermore, the trial doesn’t address groups such as nursing home residents.
“I have, for instance, 85-year-olds with vitamin D levels of maybe 20 nmol/L with multiple medical issues, but levels that low were not included in the study, so this is a tricky business, but the bottom line is first, do no harm,” he said.
“We really need trials that factor in the multiple different aspects so we can come up, hopefully, with a holistic and interdisciplinary approach, which is usually the best way to optimize care for frail older adults,” he concluded.
The study received funding from the National Institute of Aging.
A version of this article originally appeared on Medscape.com.
Real acupuncture beat sham for osteoarthritis knee pain
Electro-acupuncture resulted in significant improvement in pain and function, compared with sham acupuncture, in a randomized trial of more than 400 adults with knee OA.
The socioeconomic burden of knee OA (KOA) remains high, and will likely increase with the aging population and rising rates of obesity, wrote first author Jian-Feng Tu, MD, PhD, of Beijing University of Chinese Medicine and colleagues. “Since no disease-modifying pharmaceutical agents have been approved, current KOA treatments are mainly symptomatic,” and identifying new therapies in addition to pharmacological agents or surgery is a research priority, they added. The research on acupuncture as a treatment for KOA has increased, but remains controversial as researchers attempt to determine the number of sessions needed for effectiveness.
In a study published in Arthritis & Rheumatology, the researchers recruited 480 adults aged 45-75 years with confirmed KOA who reported knee pain for longer than 6 months. Participants were randomized to three groups: electroacupuncture (EA), manual acupuncture (MA), or sham acupuncture (SA). Each group received three treatment sessions per week. In all groups, electrodes were attached to selected acupuncture needles, but the current was turned on only in the EA treatment group.
The primary outcome was the response rate after 8 weeks of treatment, defined as patients who achieved the minimal clinically important improvement (MCII) on both the Numeric Rating Scale and the Western Ontario and McMaster Universities Osteoarthritis Index function subscale.
Overall, response rates at 8 weeks were 60.3%, 58.6%, and 47.3% for the EA, MA, and SA groups, respectively.
Between-group differences were statistically significant for EA versus SA (13%, P = .0234) but not for MA versus SA (11.3%, P = .0507) at 8 weeks; however, both EA and MA groups showed significantly higher response rates, compared with the SA group at 16 and 26 weeks. “Although a clinically meaningful response rate for KOA is not available in the literature, the difference of 11.3%, which indicates the number needed to treat of 9, is acceptable in clinical practices,” the researchers noted.
Adverse events occurred in 11.5% of the EA group, 14.2% of the MA group, and 10.8% of the SA group, and included subcutaneous hematoma, post-needling pain, and pantalgia. All adverse events related to acupuncture resolved within a week and none were serious, the researchers wrote.
The study findings were limited by several factors, including the potential burden on patients of three sessions per week, the limited study population of patients with radiologic grades of II or III only, the use of self-reports, and the lack of blinding for outcome assessors, the researchers noted.
However, the results show persistent effects in reducing pain and improving function with EA or MA, compared with SA, the researchers wrote. The findings were strengthened by “adequate dosage of acupuncture, the use of the primary outcome at an individual level, and the rigorous methodology.” The use of the MCII in the primary outcome “can provide patients and policy makers with more straightforward information to decide whether a treatment should be used.”
Optimal dosing questions remain
Current options for managing KOA are limited by factors that include low efficacy and unwanted side effects, while joint replacements increase the burden on health care systems, wrote David J. Hunter, MBBS, PhD, of the University of Sydney, and Richard E. Harris, PhD, of the University of Michigan, Ann Arbor, in an accompanying editorial. “In this context, development of new treatments or identification of efficacy of existing therapies to address the huge unmet need of pain are strongly desired.” Acupuncture continues to gain popularity in North and South America, but its efficacy for pain and KOA remain controversial.
The question of dose is challenging when assessing acupuncture because the optimal dose and how to classify it remains unknown. “In this study, the authors used three treatments a week, which is more frequent than typical studies done in the West and potentially may not be feasible in some health care settings. A recent systematic review suggests that treatment frequency matters and a dose of three sessions per week may be superior to less frequent treatment,” they emphasized. Acupuncture is generally considered to be safe, but many health systems do not reimburse for it. Patients may have large out-of-pocket expenses because of the number of visits required, which may be a barrier to further implementation in practice.
“Acupuncture is already widely practiced and readily available in many countries and health care systems,” the editorialists said. However, “more research is needed in the areas of dose-response relationships, effects of blinding the acupuncturist, feasibility of three times weekly regimens, and clarifying the mechanism of effect, particularly given the persistence of benefit.”
The study was funded by Beijing Municipal Science & Technology Commission and Beijing Municipal Administration of Hospitals. The researchers had no financial conflicts to disclose. Dr. Hunter disclosed support from a National Health and Medical Research Council Investigator Grant and providing consulting advice for Merck Serono, TLC Bio, Tissuegene, Lilly, and Pfizer.
SOURCE: Tu J-F et al. Arthritis Rheumatol. 2020 Nov 10. doi: 10.1002/art.41584.
Electro-acupuncture resulted in significant improvement in pain and function, compared with sham acupuncture, in a randomized trial of more than 400 adults with knee OA.
The socioeconomic burden of knee OA (KOA) remains high, and will likely increase with the aging population and rising rates of obesity, wrote first author Jian-Feng Tu, MD, PhD, of Beijing University of Chinese Medicine and colleagues. “Since no disease-modifying pharmaceutical agents have been approved, current KOA treatments are mainly symptomatic,” and identifying new therapies in addition to pharmacological agents or surgery is a research priority, they added. The research on acupuncture as a treatment for KOA has increased, but remains controversial as researchers attempt to determine the number of sessions needed for effectiveness.
In a study published in Arthritis & Rheumatology, the researchers recruited 480 adults aged 45-75 years with confirmed KOA who reported knee pain for longer than 6 months. Participants were randomized to three groups: electroacupuncture (EA), manual acupuncture (MA), or sham acupuncture (SA). Each group received three treatment sessions per week. In all groups, electrodes were attached to selected acupuncture needles, but the current was turned on only in the EA treatment group.
The primary outcome was the response rate after 8 weeks of treatment, defined as patients who achieved the minimal clinically important improvement (MCII) on both the Numeric Rating Scale and the Western Ontario and McMaster Universities Osteoarthritis Index function subscale.
Overall, response rates at 8 weeks were 60.3%, 58.6%, and 47.3% for the EA, MA, and SA groups, respectively.
Between-group differences were statistically significant for EA versus SA (13%, P = .0234) but not for MA versus SA (11.3%, P = .0507) at 8 weeks; however, both EA and MA groups showed significantly higher response rates, compared with the SA group at 16 and 26 weeks. “Although a clinically meaningful response rate for KOA is not available in the literature, the difference of 11.3%, which indicates the number needed to treat of 9, is acceptable in clinical practices,” the researchers noted.
Adverse events occurred in 11.5% of the EA group, 14.2% of the MA group, and 10.8% of the SA group, and included subcutaneous hematoma, post-needling pain, and pantalgia. All adverse events related to acupuncture resolved within a week and none were serious, the researchers wrote.
The study findings were limited by several factors, including the potential burden on patients of three sessions per week, the limited study population of patients with radiologic grades of II or III only, the use of self-reports, and the lack of blinding for outcome assessors, the researchers noted.
However, the results show persistent effects in reducing pain and improving function with EA or MA, compared with SA, the researchers wrote. The findings were strengthened by “adequate dosage of acupuncture, the use of the primary outcome at an individual level, and the rigorous methodology.” The use of the MCII in the primary outcome “can provide patients and policy makers with more straightforward information to decide whether a treatment should be used.”
Optimal dosing questions remain
Current options for managing KOA are limited by factors that include low efficacy and unwanted side effects, while joint replacements increase the burden on health care systems, wrote David J. Hunter, MBBS, PhD, of the University of Sydney, and Richard E. Harris, PhD, of the University of Michigan, Ann Arbor, in an accompanying editorial. “In this context, development of new treatments or identification of efficacy of existing therapies to address the huge unmet need of pain are strongly desired.” Acupuncture continues to gain popularity in North and South America, but its efficacy for pain and KOA remain controversial.
The question of dose is challenging when assessing acupuncture because the optimal dose and how to classify it remains unknown. “In this study, the authors used three treatments a week, which is more frequent than typical studies done in the West and potentially may not be feasible in some health care settings. A recent systematic review suggests that treatment frequency matters and a dose of three sessions per week may be superior to less frequent treatment,” they emphasized. Acupuncture is generally considered to be safe, but many health systems do not reimburse for it. Patients may have large out-of-pocket expenses because of the number of visits required, which may be a barrier to further implementation in practice.
“Acupuncture is already widely practiced and readily available in many countries and health care systems,” the editorialists said. However, “more research is needed in the areas of dose-response relationships, effects of blinding the acupuncturist, feasibility of three times weekly regimens, and clarifying the mechanism of effect, particularly given the persistence of benefit.”
The study was funded by Beijing Municipal Science & Technology Commission and Beijing Municipal Administration of Hospitals. The researchers had no financial conflicts to disclose. Dr. Hunter disclosed support from a National Health and Medical Research Council Investigator Grant and providing consulting advice for Merck Serono, TLC Bio, Tissuegene, Lilly, and Pfizer.
SOURCE: Tu J-F et al. Arthritis Rheumatol. 2020 Nov 10. doi: 10.1002/art.41584.
Electro-acupuncture resulted in significant improvement in pain and function, compared with sham acupuncture, in a randomized trial of more than 400 adults with knee OA.
The socioeconomic burden of knee OA (KOA) remains high, and will likely increase with the aging population and rising rates of obesity, wrote first author Jian-Feng Tu, MD, PhD, of Beijing University of Chinese Medicine and colleagues. “Since no disease-modifying pharmaceutical agents have been approved, current KOA treatments are mainly symptomatic,” and identifying new therapies in addition to pharmacological agents or surgery is a research priority, they added. The research on acupuncture as a treatment for KOA has increased, but remains controversial as researchers attempt to determine the number of sessions needed for effectiveness.
In a study published in Arthritis & Rheumatology, the researchers recruited 480 adults aged 45-75 years with confirmed KOA who reported knee pain for longer than 6 months. Participants were randomized to three groups: electroacupuncture (EA), manual acupuncture (MA), or sham acupuncture (SA). Each group received three treatment sessions per week. In all groups, electrodes were attached to selected acupuncture needles, but the current was turned on only in the EA treatment group.
The primary outcome was the response rate after 8 weeks of treatment, defined as patients who achieved the minimal clinically important improvement (MCII) on both the Numeric Rating Scale and the Western Ontario and McMaster Universities Osteoarthritis Index function subscale.
Overall, response rates at 8 weeks were 60.3%, 58.6%, and 47.3% for the EA, MA, and SA groups, respectively.
Between-group differences were statistically significant for EA versus SA (13%, P = .0234) but not for MA versus SA (11.3%, P = .0507) at 8 weeks; however, both EA and MA groups showed significantly higher response rates, compared with the SA group at 16 and 26 weeks. “Although a clinically meaningful response rate for KOA is not available in the literature, the difference of 11.3%, which indicates the number needed to treat of 9, is acceptable in clinical practices,” the researchers noted.
Adverse events occurred in 11.5% of the EA group, 14.2% of the MA group, and 10.8% of the SA group, and included subcutaneous hematoma, post-needling pain, and pantalgia. All adverse events related to acupuncture resolved within a week and none were serious, the researchers wrote.
The study findings were limited by several factors, including the potential burden on patients of three sessions per week, the limited study population of patients with radiologic grades of II or III only, the use of self-reports, and the lack of blinding for outcome assessors, the researchers noted.
However, the results show persistent effects in reducing pain and improving function with EA or MA, compared with SA, the researchers wrote. The findings were strengthened by “adequate dosage of acupuncture, the use of the primary outcome at an individual level, and the rigorous methodology.” The use of the MCII in the primary outcome “can provide patients and policy makers with more straightforward information to decide whether a treatment should be used.”
Optimal dosing questions remain
Current options for managing KOA are limited by factors that include low efficacy and unwanted side effects, while joint replacements increase the burden on health care systems, wrote David J. Hunter, MBBS, PhD, of the University of Sydney, and Richard E. Harris, PhD, of the University of Michigan, Ann Arbor, in an accompanying editorial. “In this context, development of new treatments or identification of efficacy of existing therapies to address the huge unmet need of pain are strongly desired.” Acupuncture continues to gain popularity in North and South America, but its efficacy for pain and KOA remain controversial.
The question of dose is challenging when assessing acupuncture because the optimal dose and how to classify it remains unknown. “In this study, the authors used three treatments a week, which is more frequent than typical studies done in the West and potentially may not be feasible in some health care settings. A recent systematic review suggests that treatment frequency matters and a dose of three sessions per week may be superior to less frequent treatment,” they emphasized. Acupuncture is generally considered to be safe, but many health systems do not reimburse for it. Patients may have large out-of-pocket expenses because of the number of visits required, which may be a barrier to further implementation in practice.
“Acupuncture is already widely practiced and readily available in many countries and health care systems,” the editorialists said. However, “more research is needed in the areas of dose-response relationships, effects of blinding the acupuncturist, feasibility of three times weekly regimens, and clarifying the mechanism of effect, particularly given the persistence of benefit.”
The study was funded by Beijing Municipal Science & Technology Commission and Beijing Municipal Administration of Hospitals. The researchers had no financial conflicts to disclose. Dr. Hunter disclosed support from a National Health and Medical Research Council Investigator Grant and providing consulting advice for Merck Serono, TLC Bio, Tissuegene, Lilly, and Pfizer.
SOURCE: Tu J-F et al. Arthritis Rheumatol. 2020 Nov 10. doi: 10.1002/art.41584.
FROM ARTHRITIS & RHEUMATOLOGY
Warfarin use linked to knee and hip replacement in osteoarthritis patients
Patients who take the vitamin K antagonist warfarin to prevent thromboembolic events are significantly more likely to require knee or hip replacement surgery – a surrogate endpoint for end-stage osteoarthritis – than are patients who take direct oral anticoagulants (DOACs), results of a U.K.-based study showed.
In a nested case-control study, warfarin use was associated with a 1.5-fold risk for knee and hip replacement, compared with use of DOACs.
The findings provide additional evidence for the role of vitamin K and vitamin K–dependent proteins for limiting osteoarthritis progression, said lead author Priyanka Ballal, MD, a rheumatology fellow at Boston University.
“Given the prevalence and impact of osteoarthritis, our data, along with the existing literature, support the need for a well-powered, randomized, controlled trial for evaluating vitamin K supplementation in osteoarthritis. Our study also raises the consideration of using DOACs over warfarin when indicated in people with or at risk of osteoarthritis,“ she said in a plenary session at the virtual annual meeting of the American College of Rheumatology.
Warfarin targets vitamin K for its role in coagulation, but vitamin K is also an essential co-factor for vitamin K-dependent proteins in bone and cartilage, Dr. Ballal said,
Inadequate vitamin K levels are associated with abnormal joint tissue mineralization, and with increased incidence and prevalence of osteoarthritis. In a randomized, controlled trial, vitamin K supplementation was associated with trends toward less osteoarthritis progression among patients with vitamin K deficiency, she said.
To see whether warfarin therapy has biologic effects similar to that seen in patients with vitamin K deficiency, Dr. Ballal and colleagues conducted a nested, case-control study using data from The Health Improvement Network (THIN), an electronic medical record database of patients enrolled with general practitioners in the United Kingdom.
The sample included adults aged 40-80 years with atrial fibrillation who had received one or more prescriptions for warfarin or a DOAC beginning in 2009, a year after DOACs were first marketed in the United Kingdom, and within 1 year of the index date (date of joint replacement surgery). The researchers excluded patients with knee or hip replacements before 2014, severe comorbidities that would limit joint replacement, or who had used either warfarin or a DOAC prior to study entry. Each case was matched by age, gender, and index date with up to four control patients (those who did not have surgery).
A total of 913 cases and 3,652 controls were included. The groups had similar characteristics (sex, age, cancer, renal disease, chronic lung disease, hypertension, and incidence of venous thromboembolism [VTE]), except for somewhat higher rates of diabetes and heart failure among controls, and a higher rate of obesity among cases.
The investigators first looked at warfarin use among all knee and/or hip replacement cases and controls and calculated an odds ratio of 1.57 (95% confidence interval [CI], 1.30-1.89) for knee and hip replacement with warfarin after adjustment for body mass index, factors influencing choice of anticoagulant, comorbidities, other medications, general practitioner visits, and hospitalizations.
The association between warfarin and joint replacement held up in an analysis restricted to knee replacement only, with an adjusted OR of 1.48 (95% CI, 1.16-1.89).
There was also a clear association between duration of warfarin use and risk of knee and hip replacement.
“This abstract suggests the role of adequate vitamin K may be important in decreasing progression of osteoarthritis, which would then favor patients with OA who are on warfarin to consider changing to a DOAC; however, further studies are needed to confirm this finding and consider its impact on VTE and wound healing postop,” said Minna Kohler, MD, director of the rheumatology musculoskeletal ultrasound program at Massachusetts General Hospital in Boston. Dr. Kohler, who was not involved in the study, replied to an email request for comment.
The study was supported by grants from the National Institutes of Health. Dr. Ballal and Dr. Kohler reported having no conflicts of interest to disclose.
SOURCE: Ballal P et al. Arthritis Rheumatol. 2020;72(suppl 10): Abstract 0934.
Patients who take the vitamin K antagonist warfarin to prevent thromboembolic events are significantly more likely to require knee or hip replacement surgery – a surrogate endpoint for end-stage osteoarthritis – than are patients who take direct oral anticoagulants (DOACs), results of a U.K.-based study showed.
In a nested case-control study, warfarin use was associated with a 1.5-fold risk for knee and hip replacement, compared with use of DOACs.
The findings provide additional evidence for the role of vitamin K and vitamin K–dependent proteins for limiting osteoarthritis progression, said lead author Priyanka Ballal, MD, a rheumatology fellow at Boston University.
“Given the prevalence and impact of osteoarthritis, our data, along with the existing literature, support the need for a well-powered, randomized, controlled trial for evaluating vitamin K supplementation in osteoarthritis. Our study also raises the consideration of using DOACs over warfarin when indicated in people with or at risk of osteoarthritis,“ she said in a plenary session at the virtual annual meeting of the American College of Rheumatology.
Warfarin targets vitamin K for its role in coagulation, but vitamin K is also an essential co-factor for vitamin K-dependent proteins in bone and cartilage, Dr. Ballal said,
Inadequate vitamin K levels are associated with abnormal joint tissue mineralization, and with increased incidence and prevalence of osteoarthritis. In a randomized, controlled trial, vitamin K supplementation was associated with trends toward less osteoarthritis progression among patients with vitamin K deficiency, she said.
To see whether warfarin therapy has biologic effects similar to that seen in patients with vitamin K deficiency, Dr. Ballal and colleagues conducted a nested, case-control study using data from The Health Improvement Network (THIN), an electronic medical record database of patients enrolled with general practitioners in the United Kingdom.
The sample included adults aged 40-80 years with atrial fibrillation who had received one or more prescriptions for warfarin or a DOAC beginning in 2009, a year after DOACs were first marketed in the United Kingdom, and within 1 year of the index date (date of joint replacement surgery). The researchers excluded patients with knee or hip replacements before 2014, severe comorbidities that would limit joint replacement, or who had used either warfarin or a DOAC prior to study entry. Each case was matched by age, gender, and index date with up to four control patients (those who did not have surgery).
A total of 913 cases and 3,652 controls were included. The groups had similar characteristics (sex, age, cancer, renal disease, chronic lung disease, hypertension, and incidence of venous thromboembolism [VTE]), except for somewhat higher rates of diabetes and heart failure among controls, and a higher rate of obesity among cases.
The investigators first looked at warfarin use among all knee and/or hip replacement cases and controls and calculated an odds ratio of 1.57 (95% confidence interval [CI], 1.30-1.89) for knee and hip replacement with warfarin after adjustment for body mass index, factors influencing choice of anticoagulant, comorbidities, other medications, general practitioner visits, and hospitalizations.
The association between warfarin and joint replacement held up in an analysis restricted to knee replacement only, with an adjusted OR of 1.48 (95% CI, 1.16-1.89).
There was also a clear association between duration of warfarin use and risk of knee and hip replacement.
“This abstract suggests the role of adequate vitamin K may be important in decreasing progression of osteoarthritis, which would then favor patients with OA who are on warfarin to consider changing to a DOAC; however, further studies are needed to confirm this finding and consider its impact on VTE and wound healing postop,” said Minna Kohler, MD, director of the rheumatology musculoskeletal ultrasound program at Massachusetts General Hospital in Boston. Dr. Kohler, who was not involved in the study, replied to an email request for comment.
The study was supported by grants from the National Institutes of Health. Dr. Ballal and Dr. Kohler reported having no conflicts of interest to disclose.
SOURCE: Ballal P et al. Arthritis Rheumatol. 2020;72(suppl 10): Abstract 0934.
Patients who take the vitamin K antagonist warfarin to prevent thromboembolic events are significantly more likely to require knee or hip replacement surgery – a surrogate endpoint for end-stage osteoarthritis – than are patients who take direct oral anticoagulants (DOACs), results of a U.K.-based study showed.
In a nested case-control study, warfarin use was associated with a 1.5-fold risk for knee and hip replacement, compared with use of DOACs.
The findings provide additional evidence for the role of vitamin K and vitamin K–dependent proteins for limiting osteoarthritis progression, said lead author Priyanka Ballal, MD, a rheumatology fellow at Boston University.
“Given the prevalence and impact of osteoarthritis, our data, along with the existing literature, support the need for a well-powered, randomized, controlled trial for evaluating vitamin K supplementation in osteoarthritis. Our study also raises the consideration of using DOACs over warfarin when indicated in people with or at risk of osteoarthritis,“ she said in a plenary session at the virtual annual meeting of the American College of Rheumatology.
Warfarin targets vitamin K for its role in coagulation, but vitamin K is also an essential co-factor for vitamin K-dependent proteins in bone and cartilage, Dr. Ballal said,
Inadequate vitamin K levels are associated with abnormal joint tissue mineralization, and with increased incidence and prevalence of osteoarthritis. In a randomized, controlled trial, vitamin K supplementation was associated with trends toward less osteoarthritis progression among patients with vitamin K deficiency, she said.
To see whether warfarin therapy has biologic effects similar to that seen in patients with vitamin K deficiency, Dr. Ballal and colleagues conducted a nested, case-control study using data from The Health Improvement Network (THIN), an electronic medical record database of patients enrolled with general practitioners in the United Kingdom.
The sample included adults aged 40-80 years with atrial fibrillation who had received one or more prescriptions for warfarin or a DOAC beginning in 2009, a year after DOACs were first marketed in the United Kingdom, and within 1 year of the index date (date of joint replacement surgery). The researchers excluded patients with knee or hip replacements before 2014, severe comorbidities that would limit joint replacement, or who had used either warfarin or a DOAC prior to study entry. Each case was matched by age, gender, and index date with up to four control patients (those who did not have surgery).
A total of 913 cases and 3,652 controls were included. The groups had similar characteristics (sex, age, cancer, renal disease, chronic lung disease, hypertension, and incidence of venous thromboembolism [VTE]), except for somewhat higher rates of diabetes and heart failure among controls, and a higher rate of obesity among cases.
The investigators first looked at warfarin use among all knee and/or hip replacement cases and controls and calculated an odds ratio of 1.57 (95% confidence interval [CI], 1.30-1.89) for knee and hip replacement with warfarin after adjustment for body mass index, factors influencing choice of anticoagulant, comorbidities, other medications, general practitioner visits, and hospitalizations.
The association between warfarin and joint replacement held up in an analysis restricted to knee replacement only, with an adjusted OR of 1.48 (95% CI, 1.16-1.89).
There was also a clear association between duration of warfarin use and risk of knee and hip replacement.
“This abstract suggests the role of adequate vitamin K may be important in decreasing progression of osteoarthritis, which would then favor patients with OA who are on warfarin to consider changing to a DOAC; however, further studies are needed to confirm this finding and consider its impact on VTE and wound healing postop,” said Minna Kohler, MD, director of the rheumatology musculoskeletal ultrasound program at Massachusetts General Hospital in Boston. Dr. Kohler, who was not involved in the study, replied to an email request for comment.
The study was supported by grants from the National Institutes of Health. Dr. Ballal and Dr. Kohler reported having no conflicts of interest to disclose.
SOURCE: Ballal P et al. Arthritis Rheumatol. 2020;72(suppl 10): Abstract 0934.
FROM ACR 2020
FDA issues new NSAIDs warning for second half of pregnancy
The U.S. Food and Drug Administration released new warnings Oct. 15 that most nonsteroidal anti-inflammatory agents (NSAIDs) carry an elevated risk for kidney complications in unborn children when taken around weeks 20 or later in pregnancy.
Citing newly available research, the agency states the risk of low amniotic fluid (known as oligohydramnios) can occur, which in turn can cause rare but serious kidney problems in the offspring. Pregnancy complications also can result.
The FDA action expands on earlier warnings about agents in this drug class, which the FDA previously cautioned about taking after week 30 of pregnancy because of heart-related risks.
Manufacturers of both over-the-counter and prescription NSAIDs – including ibuprofen, naproxen, diclofenac, and celecoxib – will be required to update their labeling with the new warning.
Low-dose (81-mg) aspirin is excluded from this warning.
“Low-dose aspirin may be an important treatment for some women during pregnancy and should be taken under the direction of a healthcare professional,” the agency stated in a news release.
“It is important that women understand the benefits and risks of the medications they may take over the course of their pregnancy,” Patrizia Cavazzoni, MD, acting director of FDA’s Center for Drug Evaluation and Research, states in the release. “To this end, the agency is using its regulatory authority to inform women and their healthcare providers about the risks if NSAIDs are used after around 20 weeks of pregnancy and beyond.”
Oligohydramnios can arise quickly – in as little as 2 days – or weeks after starting regular NSAID use in this patient population. The condition usually resolves if a pregnant woman stops taking the NSAID, the agency notes.
If a health care provider believes NSAIDs are necessary between about 20 and 30 weeks of pregnancy, use should be limited to the lowest effective dose and shortest duration possible, the Drug Safety Communication notes.
As a reminder, health care professionals and patients should report side effects from NSAIDs to the FDA’s MedWatch program.
A version of this article originally appeared on Medscape.com.
The U.S. Food and Drug Administration released new warnings Oct. 15 that most nonsteroidal anti-inflammatory agents (NSAIDs) carry an elevated risk for kidney complications in unborn children when taken around weeks 20 or later in pregnancy.
Citing newly available research, the agency states the risk of low amniotic fluid (known as oligohydramnios) can occur, which in turn can cause rare but serious kidney problems in the offspring. Pregnancy complications also can result.
The FDA action expands on earlier warnings about agents in this drug class, which the FDA previously cautioned about taking after week 30 of pregnancy because of heart-related risks.
Manufacturers of both over-the-counter and prescription NSAIDs – including ibuprofen, naproxen, diclofenac, and celecoxib – will be required to update their labeling with the new warning.
Low-dose (81-mg) aspirin is excluded from this warning.
“Low-dose aspirin may be an important treatment for some women during pregnancy and should be taken under the direction of a healthcare professional,” the agency stated in a news release.
“It is important that women understand the benefits and risks of the medications they may take over the course of their pregnancy,” Patrizia Cavazzoni, MD, acting director of FDA’s Center for Drug Evaluation and Research, states in the release. “To this end, the agency is using its regulatory authority to inform women and their healthcare providers about the risks if NSAIDs are used after around 20 weeks of pregnancy and beyond.”
Oligohydramnios can arise quickly – in as little as 2 days – or weeks after starting regular NSAID use in this patient population. The condition usually resolves if a pregnant woman stops taking the NSAID, the agency notes.
If a health care provider believes NSAIDs are necessary between about 20 and 30 weeks of pregnancy, use should be limited to the lowest effective dose and shortest duration possible, the Drug Safety Communication notes.
As a reminder, health care professionals and patients should report side effects from NSAIDs to the FDA’s MedWatch program.
A version of this article originally appeared on Medscape.com.
The U.S. Food and Drug Administration released new warnings Oct. 15 that most nonsteroidal anti-inflammatory agents (NSAIDs) carry an elevated risk for kidney complications in unborn children when taken around weeks 20 or later in pregnancy.
Citing newly available research, the agency states the risk of low amniotic fluid (known as oligohydramnios) can occur, which in turn can cause rare but serious kidney problems in the offspring. Pregnancy complications also can result.
The FDA action expands on earlier warnings about agents in this drug class, which the FDA previously cautioned about taking after week 30 of pregnancy because of heart-related risks.
Manufacturers of both over-the-counter and prescription NSAIDs – including ibuprofen, naproxen, diclofenac, and celecoxib – will be required to update their labeling with the new warning.
Low-dose (81-mg) aspirin is excluded from this warning.
“Low-dose aspirin may be an important treatment for some women during pregnancy and should be taken under the direction of a healthcare professional,” the agency stated in a news release.
“It is important that women understand the benefits and risks of the medications they may take over the course of their pregnancy,” Patrizia Cavazzoni, MD, acting director of FDA’s Center for Drug Evaluation and Research, states in the release. “To this end, the agency is using its regulatory authority to inform women and their healthcare providers about the risks if NSAIDs are used after around 20 weeks of pregnancy and beyond.”
Oligohydramnios can arise quickly – in as little as 2 days – or weeks after starting regular NSAID use in this patient population. The condition usually resolves if a pregnant woman stops taking the NSAID, the agency notes.
If a health care provider believes NSAIDs are necessary between about 20 and 30 weeks of pregnancy, use should be limited to the lowest effective dose and shortest duration possible, the Drug Safety Communication notes.
As a reminder, health care professionals and patients should report side effects from NSAIDs to the FDA’s MedWatch program.
A version of this article originally appeared on Medscape.com.
Stress tests before knee, hip replacement surgeries down, with no ill effects
Cardiac stress testing before hip and knee replacements has dropped steadily since 2006, according to results from a new study that also showed major cardiac complications to be low in the absence of stress testing – even among people with established risk factors.
Routine stress testing before noncardiac surgeries has come under fire in recent decades as an overuse of resources and a burden on patients. Practice guidelines issued in 2007 and 2014 by the American College of Cardiology and the American Heart Association sought to limit the use of preoperative testing to patients with specific cardiovascular risk factors who might have their management changed by the test results.
For their study, published online in JAMA Cardiology, Daniel S. Rubin, MD, of the University of Chicago and colleagues looked at employee-based insurance data, which included Medicare Advantage claims, for more than 800,000 total hip or knee arthroplasties (28% hip and 72% knee replacements) conducted between 2004 and 2017.
While some 10% of the cohort (mean age 62, 58% women) received a stress test in the 2 months before surgery, the investigators found that the frequency of preoperative stress testing dropped annually starting in late 2006, when it peaked at about 14%, to about 7% in 2017. Older age, male sex and a Revised Cardiac Risk Index score of 1 or greater were all associated with a higher likelihood of being tested.
The overall frequency of myocardial infarction or cardiac arrest was 0.24%, occurring in 1,677 of 686,067 patients. While the rate was higher in patients with at least one RCRI condition, this did not differ significantly between those who received a preoperative stress test and those who did not (0.60%; 221 of 36,554 vs. 0.57%; 694 of 122,466 patients.
The 2007 and 2014 ACC/AHA guidelines make clear that patients with zero RCRI conditions – which comprise a history of ischemic heart disease, heart failure, insulin therapy for diabetes, cerebrovascular disease, or chronic kidney disease – should not receive a stress test before an intermediate-risk surgery such as a hip or knee replacement. But in this study, Dr. Rubin and his colleagues found that almost half of patients who had no RCRI risk factors were stress tested anyway. This means, Dr. Rubin said in an interview, that “there’s still room for improvement” in reducing testing.
“I never want to question how a physician chooses to practice, but I have to applaud physicians for reining in the use of this test. We’re using less of this test and yet the incidence of myocardial infarction and cardiac arrest is also going down, which also calls into question whether we’re getting better at choosing the right patients for the test; or the test doesn’t impact outcomes; or overall health of these patients is improving,” he said.
One surprise finding in the study, Dr. Rubin noted, was a higher rate of complications among people without RCRI conditions who were stress tested, compared with those who were not, with a mean complication rate of 0.27%, compared with 0.14% among those who did not receive a test (P < .001). “The RCRI doesn’t capture certain things,” Dr. Rubin said. “And we know that no risk stratification tool is going to capture everything.”
The RCRI, he noted, is based on a clinical history. “If you haven’t been diagnosed yet, it won’t appear as a risk factor, even if you’re clearly at risk. The question then becomes for a physician, do you do the test or not? On a day-to-day basis it’s hard to make that decision because you want what’s best for the individual patient – and it’s hard to generalize from a study of 800,000 people what’s right for that one patient. That said, it doesn’t appear that stress testing improves outcomes and a decrease in testing appears appropriate.”
Dr. Rubin and his colleagues described as a weakness of their study that it did not capture the full scope of preoperative stress testing among Medicare patients, who are older and therefore more likely to be tested.
That the 2007 and 2014 practice guidelines bore on the drop in testing was not demonstrated by Dr. Rubin and colleagues’ study, which saw declines begin even before the guidelines were published. Nonetheless, the results appear to validate the approach advocated in the guidelines, said guideline coauthor Joshua Beckman, MD, of Vanderbilt University, whose recent research has focused on identifying risk factors for MI after noncardiac surgery.
“I hope that the guidelines have helped in changing the culture for the use of preoperative stress testing as a regular thing,” Dr. Beckman said in an interview. “In fact, the guidelines say you shouldn’t do anything before an operation that you wouldn’t do anyway. So these findings are certainly in agreement with what we’re suggesting and support the idea that unless you have something that is unstable or active, stress testing isn’t likely to help.”
Annemarie Thompson, MD, of Duke University in Durham, N.C., another coauthor on the 2014 guidelines, commented in an interview that Dr. Rubin and colleagues’ findings of a doubled rate of complications among people without RCRI conditions who were stress tested, compared with those who were not might mean something “other than just sheer overuse or overordering of tests inappropriately.”
Rather, she said, physicians might be seeing something in the clinic that cannot be captured by a screening tool reliant on existing diagnoses. “Maybe when they’re sitting in front of you in a clinic, they’re so immobile that you’re left wondering. Or maybe they haven’t been seen by a doctor in a long time,” Dr. Thompson said. “So they don’t have diagnoses if they haven’t been followed. I think what [this finding] shows is that clinicians are detecting something. They may not know what it is. But we have to give a little wiggle room to the clinician who is sitting there looking at a patient who looks like they may not make it through surgery.”
Dr. Thompson said it would be helpful, after a big-data study like this one, to go through the clinical histories of those patients – in this study fewer than 100 – who had no RCRI risk factors and yet were stress tested and ended up having complications. “Until then we’re not going to solve the mystery,” she said. “But it’s a very, very interesting study.”
Dr. Rubin is the president of DRDR Mobile Health, a company that creates mobile applications for health care and from which he has not received compensation. One of his coauthors on the study, Dr. Peter Nagele, reported fee income from Roche Diagnostics. Dr. Beckman disclosed personal fees from AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb, and other pharmaceutical manufacturers. Dr. Thompson has no disclosures.
SOURCE: Rubin et al. JAMA Cardiol. 2020 Sep 30. doi: 10.1001/jamacardio.2020.4311.
Cardiac stress testing before hip and knee replacements has dropped steadily since 2006, according to results from a new study that also showed major cardiac complications to be low in the absence of stress testing – even among people with established risk factors.
Routine stress testing before noncardiac surgeries has come under fire in recent decades as an overuse of resources and a burden on patients. Practice guidelines issued in 2007 and 2014 by the American College of Cardiology and the American Heart Association sought to limit the use of preoperative testing to patients with specific cardiovascular risk factors who might have their management changed by the test results.
For their study, published online in JAMA Cardiology, Daniel S. Rubin, MD, of the University of Chicago and colleagues looked at employee-based insurance data, which included Medicare Advantage claims, for more than 800,000 total hip or knee arthroplasties (28% hip and 72% knee replacements) conducted between 2004 and 2017.
While some 10% of the cohort (mean age 62, 58% women) received a stress test in the 2 months before surgery, the investigators found that the frequency of preoperative stress testing dropped annually starting in late 2006, when it peaked at about 14%, to about 7% in 2017. Older age, male sex and a Revised Cardiac Risk Index score of 1 or greater were all associated with a higher likelihood of being tested.
The overall frequency of myocardial infarction or cardiac arrest was 0.24%, occurring in 1,677 of 686,067 patients. While the rate was higher in patients with at least one RCRI condition, this did not differ significantly between those who received a preoperative stress test and those who did not (0.60%; 221 of 36,554 vs. 0.57%; 694 of 122,466 patients.
The 2007 and 2014 ACC/AHA guidelines make clear that patients with zero RCRI conditions – which comprise a history of ischemic heart disease, heart failure, insulin therapy for diabetes, cerebrovascular disease, or chronic kidney disease – should not receive a stress test before an intermediate-risk surgery such as a hip or knee replacement. But in this study, Dr. Rubin and his colleagues found that almost half of patients who had no RCRI risk factors were stress tested anyway. This means, Dr. Rubin said in an interview, that “there’s still room for improvement” in reducing testing.
“I never want to question how a physician chooses to practice, but I have to applaud physicians for reining in the use of this test. We’re using less of this test and yet the incidence of myocardial infarction and cardiac arrest is also going down, which also calls into question whether we’re getting better at choosing the right patients for the test; or the test doesn’t impact outcomes; or overall health of these patients is improving,” he said.
One surprise finding in the study, Dr. Rubin noted, was a higher rate of complications among people without RCRI conditions who were stress tested, compared with those who were not, with a mean complication rate of 0.27%, compared with 0.14% among those who did not receive a test (P < .001). “The RCRI doesn’t capture certain things,” Dr. Rubin said. “And we know that no risk stratification tool is going to capture everything.”
The RCRI, he noted, is based on a clinical history. “If you haven’t been diagnosed yet, it won’t appear as a risk factor, even if you’re clearly at risk. The question then becomes for a physician, do you do the test or not? On a day-to-day basis it’s hard to make that decision because you want what’s best for the individual patient – and it’s hard to generalize from a study of 800,000 people what’s right for that one patient. That said, it doesn’t appear that stress testing improves outcomes and a decrease in testing appears appropriate.”
Dr. Rubin and his colleagues described as a weakness of their study that it did not capture the full scope of preoperative stress testing among Medicare patients, who are older and therefore more likely to be tested.
That the 2007 and 2014 practice guidelines bore on the drop in testing was not demonstrated by Dr. Rubin and colleagues’ study, which saw declines begin even before the guidelines were published. Nonetheless, the results appear to validate the approach advocated in the guidelines, said guideline coauthor Joshua Beckman, MD, of Vanderbilt University, whose recent research has focused on identifying risk factors for MI after noncardiac surgery.
“I hope that the guidelines have helped in changing the culture for the use of preoperative stress testing as a regular thing,” Dr. Beckman said in an interview. “In fact, the guidelines say you shouldn’t do anything before an operation that you wouldn’t do anyway. So these findings are certainly in agreement with what we’re suggesting and support the idea that unless you have something that is unstable or active, stress testing isn’t likely to help.”
Annemarie Thompson, MD, of Duke University in Durham, N.C., another coauthor on the 2014 guidelines, commented in an interview that Dr. Rubin and colleagues’ findings of a doubled rate of complications among people without RCRI conditions who were stress tested, compared with those who were not might mean something “other than just sheer overuse or overordering of tests inappropriately.”
Rather, she said, physicians might be seeing something in the clinic that cannot be captured by a screening tool reliant on existing diagnoses. “Maybe when they’re sitting in front of you in a clinic, they’re so immobile that you’re left wondering. Or maybe they haven’t been seen by a doctor in a long time,” Dr. Thompson said. “So they don’t have diagnoses if they haven’t been followed. I think what [this finding] shows is that clinicians are detecting something. They may not know what it is. But we have to give a little wiggle room to the clinician who is sitting there looking at a patient who looks like they may not make it through surgery.”
Dr. Thompson said it would be helpful, after a big-data study like this one, to go through the clinical histories of those patients – in this study fewer than 100 – who had no RCRI risk factors and yet were stress tested and ended up having complications. “Until then we’re not going to solve the mystery,” she said. “But it’s a very, very interesting study.”
Dr. Rubin is the president of DRDR Mobile Health, a company that creates mobile applications for health care and from which he has not received compensation. One of his coauthors on the study, Dr. Peter Nagele, reported fee income from Roche Diagnostics. Dr. Beckman disclosed personal fees from AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb, and other pharmaceutical manufacturers. Dr. Thompson has no disclosures.
SOURCE: Rubin et al. JAMA Cardiol. 2020 Sep 30. doi: 10.1001/jamacardio.2020.4311.
Cardiac stress testing before hip and knee replacements has dropped steadily since 2006, according to results from a new study that also showed major cardiac complications to be low in the absence of stress testing – even among people with established risk factors.
Routine stress testing before noncardiac surgeries has come under fire in recent decades as an overuse of resources and a burden on patients. Practice guidelines issued in 2007 and 2014 by the American College of Cardiology and the American Heart Association sought to limit the use of preoperative testing to patients with specific cardiovascular risk factors who might have their management changed by the test results.
For their study, published online in JAMA Cardiology, Daniel S. Rubin, MD, of the University of Chicago and colleagues looked at employee-based insurance data, which included Medicare Advantage claims, for more than 800,000 total hip or knee arthroplasties (28% hip and 72% knee replacements) conducted between 2004 and 2017.
While some 10% of the cohort (mean age 62, 58% women) received a stress test in the 2 months before surgery, the investigators found that the frequency of preoperative stress testing dropped annually starting in late 2006, when it peaked at about 14%, to about 7% in 2017. Older age, male sex and a Revised Cardiac Risk Index score of 1 or greater were all associated with a higher likelihood of being tested.
The overall frequency of myocardial infarction or cardiac arrest was 0.24%, occurring in 1,677 of 686,067 patients. While the rate was higher in patients with at least one RCRI condition, this did not differ significantly between those who received a preoperative stress test and those who did not (0.60%; 221 of 36,554 vs. 0.57%; 694 of 122,466 patients.
The 2007 and 2014 ACC/AHA guidelines make clear that patients with zero RCRI conditions – which comprise a history of ischemic heart disease, heart failure, insulin therapy for diabetes, cerebrovascular disease, or chronic kidney disease – should not receive a stress test before an intermediate-risk surgery such as a hip or knee replacement. But in this study, Dr. Rubin and his colleagues found that almost half of patients who had no RCRI risk factors were stress tested anyway. This means, Dr. Rubin said in an interview, that “there’s still room for improvement” in reducing testing.
“I never want to question how a physician chooses to practice, but I have to applaud physicians for reining in the use of this test. We’re using less of this test and yet the incidence of myocardial infarction and cardiac arrest is also going down, which also calls into question whether we’re getting better at choosing the right patients for the test; or the test doesn’t impact outcomes; or overall health of these patients is improving,” he said.
One surprise finding in the study, Dr. Rubin noted, was a higher rate of complications among people without RCRI conditions who were stress tested, compared with those who were not, with a mean complication rate of 0.27%, compared with 0.14% among those who did not receive a test (P < .001). “The RCRI doesn’t capture certain things,” Dr. Rubin said. “And we know that no risk stratification tool is going to capture everything.”
The RCRI, he noted, is based on a clinical history. “If you haven’t been diagnosed yet, it won’t appear as a risk factor, even if you’re clearly at risk. The question then becomes for a physician, do you do the test or not? On a day-to-day basis it’s hard to make that decision because you want what’s best for the individual patient – and it’s hard to generalize from a study of 800,000 people what’s right for that one patient. That said, it doesn’t appear that stress testing improves outcomes and a decrease in testing appears appropriate.”
Dr. Rubin and his colleagues described as a weakness of their study that it did not capture the full scope of preoperative stress testing among Medicare patients, who are older and therefore more likely to be tested.
That the 2007 and 2014 practice guidelines bore on the drop in testing was not demonstrated by Dr. Rubin and colleagues’ study, which saw declines begin even before the guidelines were published. Nonetheless, the results appear to validate the approach advocated in the guidelines, said guideline coauthor Joshua Beckman, MD, of Vanderbilt University, whose recent research has focused on identifying risk factors for MI after noncardiac surgery.
“I hope that the guidelines have helped in changing the culture for the use of preoperative stress testing as a regular thing,” Dr. Beckman said in an interview. “In fact, the guidelines say you shouldn’t do anything before an operation that you wouldn’t do anyway. So these findings are certainly in agreement with what we’re suggesting and support the idea that unless you have something that is unstable or active, stress testing isn’t likely to help.”
Annemarie Thompson, MD, of Duke University in Durham, N.C., another coauthor on the 2014 guidelines, commented in an interview that Dr. Rubin and colleagues’ findings of a doubled rate of complications among people without RCRI conditions who were stress tested, compared with those who were not might mean something “other than just sheer overuse or overordering of tests inappropriately.”
Rather, she said, physicians might be seeing something in the clinic that cannot be captured by a screening tool reliant on existing diagnoses. “Maybe when they’re sitting in front of you in a clinic, they’re so immobile that you’re left wondering. Or maybe they haven’t been seen by a doctor in a long time,” Dr. Thompson said. “So they don’t have diagnoses if they haven’t been followed. I think what [this finding] shows is that clinicians are detecting something. They may not know what it is. But we have to give a little wiggle room to the clinician who is sitting there looking at a patient who looks like they may not make it through surgery.”
Dr. Thompson said it would be helpful, after a big-data study like this one, to go through the clinical histories of those patients – in this study fewer than 100 – who had no RCRI risk factors and yet were stress tested and ended up having complications. “Until then we’re not going to solve the mystery,” she said. “But it’s a very, very interesting study.”
Dr. Rubin is the president of DRDR Mobile Health, a company that creates mobile applications for health care and from which he has not received compensation. One of his coauthors on the study, Dr. Peter Nagele, reported fee income from Roche Diagnostics. Dr. Beckman disclosed personal fees from AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb, and other pharmaceutical manufacturers. Dr. Thompson has no disclosures.
SOURCE: Rubin et al. JAMA Cardiol. 2020 Sep 30. doi: 10.1001/jamacardio.2020.4311.
FROM JAMA CARDIOLOGY
NSAID continuation linked to less knee OA pain
in a randomized trial.
The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain score was 6.7 out of a possible total of 20 for patients who continued meloxicam for 4 weeks versus 7.8 in those who stopped and switched to a placebo. The estimated mean difference in pain score was 1.4 (P = .92 for noninferiority), which is below the threshold of 2.1 that is considered to be the minimum clinically important difference.
Furthermore, patients who had switched to placebo and then subsequently participated in a telephone-based cognitive behavior therapy (CBT) program for another 10 weeks had higher pain levels compared with those who continued meloxicam. WOMAC scores were 12.1 and 11.8, respectively with a mean difference of 0.8 (P = .28 for noninferiority).
“Among patients with knee osteoarthritis, placebo and CBT (after placebo) are inferior to meloxicam,” Liana Fraenkel, MD, MPH, of Yale University, New Haven, Conn., and coinvestigators concluded in their article, published in JAMA Internal Medicine.
They observed that the WOMAC pain score differences between the two groups were small, however, and that there were no statistically significant differences in participants’ global impression of change or function after 14 weeks.
“Although the overall results of the trial are negative, they provide clinicians with data to support shared decision-making and reassure patients willing to taper NSAIDs and consider self-management approaches such as CBT,” Dr. Fraenkel and coauthors suggested.
The Stopping NSAIDs for Arthritis Pain trial had ultimately included 364 participants, 86% of whom were men, recruited from four veterans affairs health care systems. All had been taking NSAIDs for knee OA pain for at least 3 months and had participated in a 2-week run-in period where the NSAID they had been taking was switched to meloxicam, 15 mg once daily.
The aim of the trial had been to see if discontinuing NSAIDs and starting a CBT program would be noninferior to continuing NSAIDs in patients with knee OA.
The trial does not provide robust information on the use of CBT, David Walsh, a rheumatologist and director of the Pain Centre Versus Arthritis at the University of Nottingham, England, said in an interview.
“It can’t tell you about efficacy of CBT,” Dr. Walsh said as the CBT part of the study was not randomized, was not controlled, and was unblinded. ”It would be a different task to design a CBT trial aiming to help people to stop taking tablets,” he added.
Dr. Fraenkel and coinvestigators had reported that, at week 14, the adjusted mean difference in WOMAC pain score between the placebo (followed by CBT) and meloxicam groups was 0.8 (P = .28 for noninferiority).
“What the trial’s really doing is seeing whether people who’ve been on long-term nonsteroidals, can they just stop them without getting any worse? The conclusion for that is actually they are more likely to get worse than not if you just stop the nonsteroidals,” Dr. Walsh said.
“The withdrawal trial protocol is an important one. You can’t run a prospective trial for years to see whether something works for years. It is just not feasible. So actually, the protocol they’ve got of switching to placebo, or continuing with a nonsteroidal, is probably the best way of working out if an anti-inflammatory still has a pharmacological effect after actually being on it for X years,” Dr. Walsh said.
Dr. Walsh, who was not involved in the trial, observed that while the difference in pain scores between the groups was small, the deterioration in scores might be important for individual patients. Some may do worse, although granted that there may be some that might do better, he said.
“It is suggesting to me that nonsteroidals are still working in people who are on long-term treatment. It is not a very big pharmacological effect, but we already know from the RCTs of anti-inflammatory tablets, that they can be beneficial,” Dr. Walsh noted.
He also pointed out that patients’ pain had been improved after being switched from their current NSAID to meloxicam – the overall WOMAC pain score at recruitment was 9.6 and was 5.6 after the 2-week meloxicam run-in phase.
“Now, whether that’s because they’ve been switched to meloxicam, or whether it’s because they’re in a trial,” is an important question, Dr. Walsh suggested, adding that “it looks as though it’s more likely to be because they’re in a trial, because improvement was maintained during the following 4 weeks on placebo.”
Another point he made was that there was a higher percentage of patients in the placebo group that started taking other types of painkillers, just under half (46%) used acetaminophen versus a quarter (26%) of those who continued using meloxicam.
It is an interesting trial, “trying to tackle some really difficult questions and I think that there are really important implications from it that we can build on, but is it actually going to change the lives of patients at the moment? Not massively,” Dr. Walsh said, ”but it’s another step in the right direction.”
Dr. Fraenkel disclosed receiving research funding from the VA Office of Research and Development, the sponsor of the trial.
SOURCE: Fraenkel L et al. JAMA Intern Med. 2020 Jul 20. doi:10.1001/jamainternmed.2020.2821.
in a randomized trial.
The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain score was 6.7 out of a possible total of 20 for patients who continued meloxicam for 4 weeks versus 7.8 in those who stopped and switched to a placebo. The estimated mean difference in pain score was 1.4 (P = .92 for noninferiority), which is below the threshold of 2.1 that is considered to be the minimum clinically important difference.
Furthermore, patients who had switched to placebo and then subsequently participated in a telephone-based cognitive behavior therapy (CBT) program for another 10 weeks had higher pain levels compared with those who continued meloxicam. WOMAC scores were 12.1 and 11.8, respectively with a mean difference of 0.8 (P = .28 for noninferiority).
“Among patients with knee osteoarthritis, placebo and CBT (after placebo) are inferior to meloxicam,” Liana Fraenkel, MD, MPH, of Yale University, New Haven, Conn., and coinvestigators concluded in their article, published in JAMA Internal Medicine.
They observed that the WOMAC pain score differences between the two groups were small, however, and that there were no statistically significant differences in participants’ global impression of change or function after 14 weeks.
“Although the overall results of the trial are negative, they provide clinicians with data to support shared decision-making and reassure patients willing to taper NSAIDs and consider self-management approaches such as CBT,” Dr. Fraenkel and coauthors suggested.
The Stopping NSAIDs for Arthritis Pain trial had ultimately included 364 participants, 86% of whom were men, recruited from four veterans affairs health care systems. All had been taking NSAIDs for knee OA pain for at least 3 months and had participated in a 2-week run-in period where the NSAID they had been taking was switched to meloxicam, 15 mg once daily.
The aim of the trial had been to see if discontinuing NSAIDs and starting a CBT program would be noninferior to continuing NSAIDs in patients with knee OA.
The trial does not provide robust information on the use of CBT, David Walsh, a rheumatologist and director of the Pain Centre Versus Arthritis at the University of Nottingham, England, said in an interview.
“It can’t tell you about efficacy of CBT,” Dr. Walsh said as the CBT part of the study was not randomized, was not controlled, and was unblinded. ”It would be a different task to design a CBT trial aiming to help people to stop taking tablets,” he added.
Dr. Fraenkel and coinvestigators had reported that, at week 14, the adjusted mean difference in WOMAC pain score between the placebo (followed by CBT) and meloxicam groups was 0.8 (P = .28 for noninferiority).
“What the trial’s really doing is seeing whether people who’ve been on long-term nonsteroidals, can they just stop them without getting any worse? The conclusion for that is actually they are more likely to get worse than not if you just stop the nonsteroidals,” Dr. Walsh said.
“The withdrawal trial protocol is an important one. You can’t run a prospective trial for years to see whether something works for years. It is just not feasible. So actually, the protocol they’ve got of switching to placebo, or continuing with a nonsteroidal, is probably the best way of working out if an anti-inflammatory still has a pharmacological effect after actually being on it for X years,” Dr. Walsh said.
Dr. Walsh, who was not involved in the trial, observed that while the difference in pain scores between the groups was small, the deterioration in scores might be important for individual patients. Some may do worse, although granted that there may be some that might do better, he said.
“It is suggesting to me that nonsteroidals are still working in people who are on long-term treatment. It is not a very big pharmacological effect, but we already know from the RCTs of anti-inflammatory tablets, that they can be beneficial,” Dr. Walsh noted.
He also pointed out that patients’ pain had been improved after being switched from their current NSAID to meloxicam – the overall WOMAC pain score at recruitment was 9.6 and was 5.6 after the 2-week meloxicam run-in phase.
“Now, whether that’s because they’ve been switched to meloxicam, or whether it’s because they’re in a trial,” is an important question, Dr. Walsh suggested, adding that “it looks as though it’s more likely to be because they’re in a trial, because improvement was maintained during the following 4 weeks on placebo.”
Another point he made was that there was a higher percentage of patients in the placebo group that started taking other types of painkillers, just under half (46%) used acetaminophen versus a quarter (26%) of those who continued using meloxicam.
It is an interesting trial, “trying to tackle some really difficult questions and I think that there are really important implications from it that we can build on, but is it actually going to change the lives of patients at the moment? Not massively,” Dr. Walsh said, ”but it’s another step in the right direction.”
Dr. Fraenkel disclosed receiving research funding from the VA Office of Research and Development, the sponsor of the trial.
SOURCE: Fraenkel L et al. JAMA Intern Med. 2020 Jul 20. doi:10.1001/jamainternmed.2020.2821.
in a randomized trial.
The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain score was 6.7 out of a possible total of 20 for patients who continued meloxicam for 4 weeks versus 7.8 in those who stopped and switched to a placebo. The estimated mean difference in pain score was 1.4 (P = .92 for noninferiority), which is below the threshold of 2.1 that is considered to be the minimum clinically important difference.
Furthermore, patients who had switched to placebo and then subsequently participated in a telephone-based cognitive behavior therapy (CBT) program for another 10 weeks had higher pain levels compared with those who continued meloxicam. WOMAC scores were 12.1 and 11.8, respectively with a mean difference of 0.8 (P = .28 for noninferiority).
“Among patients with knee osteoarthritis, placebo and CBT (after placebo) are inferior to meloxicam,” Liana Fraenkel, MD, MPH, of Yale University, New Haven, Conn., and coinvestigators concluded in their article, published in JAMA Internal Medicine.
They observed that the WOMAC pain score differences between the two groups were small, however, and that there were no statistically significant differences in participants’ global impression of change or function after 14 weeks.
“Although the overall results of the trial are negative, they provide clinicians with data to support shared decision-making and reassure patients willing to taper NSAIDs and consider self-management approaches such as CBT,” Dr. Fraenkel and coauthors suggested.
The Stopping NSAIDs for Arthritis Pain trial had ultimately included 364 participants, 86% of whom were men, recruited from four veterans affairs health care systems. All had been taking NSAIDs for knee OA pain for at least 3 months and had participated in a 2-week run-in period where the NSAID they had been taking was switched to meloxicam, 15 mg once daily.
The aim of the trial had been to see if discontinuing NSAIDs and starting a CBT program would be noninferior to continuing NSAIDs in patients with knee OA.
The trial does not provide robust information on the use of CBT, David Walsh, a rheumatologist and director of the Pain Centre Versus Arthritis at the University of Nottingham, England, said in an interview.
“It can’t tell you about efficacy of CBT,” Dr. Walsh said as the CBT part of the study was not randomized, was not controlled, and was unblinded. ”It would be a different task to design a CBT trial aiming to help people to stop taking tablets,” he added.
Dr. Fraenkel and coinvestigators had reported that, at week 14, the adjusted mean difference in WOMAC pain score between the placebo (followed by CBT) and meloxicam groups was 0.8 (P = .28 for noninferiority).
“What the trial’s really doing is seeing whether people who’ve been on long-term nonsteroidals, can they just stop them without getting any worse? The conclusion for that is actually they are more likely to get worse than not if you just stop the nonsteroidals,” Dr. Walsh said.
“The withdrawal trial protocol is an important one. You can’t run a prospective trial for years to see whether something works for years. It is just not feasible. So actually, the protocol they’ve got of switching to placebo, or continuing with a nonsteroidal, is probably the best way of working out if an anti-inflammatory still has a pharmacological effect after actually being on it for X years,” Dr. Walsh said.
Dr. Walsh, who was not involved in the trial, observed that while the difference in pain scores between the groups was small, the deterioration in scores might be important for individual patients. Some may do worse, although granted that there may be some that might do better, he said.
“It is suggesting to me that nonsteroidals are still working in people who are on long-term treatment. It is not a very big pharmacological effect, but we already know from the RCTs of anti-inflammatory tablets, that they can be beneficial,” Dr. Walsh noted.
He also pointed out that patients’ pain had been improved after being switched from their current NSAID to meloxicam – the overall WOMAC pain score at recruitment was 9.6 and was 5.6 after the 2-week meloxicam run-in phase.
“Now, whether that’s because they’ve been switched to meloxicam, or whether it’s because they’re in a trial,” is an important question, Dr. Walsh suggested, adding that “it looks as though it’s more likely to be because they’re in a trial, because improvement was maintained during the following 4 weeks on placebo.”
Another point he made was that there was a higher percentage of patients in the placebo group that started taking other types of painkillers, just under half (46%) used acetaminophen versus a quarter (26%) of those who continued using meloxicam.
It is an interesting trial, “trying to tackle some really difficult questions and I think that there are really important implications from it that we can build on, but is it actually going to change the lives of patients at the moment? Not massively,” Dr. Walsh said, ”but it’s another step in the right direction.”
Dr. Fraenkel disclosed receiving research funding from the VA Office of Research and Development, the sponsor of the trial.
SOURCE: Fraenkel L et al. JAMA Intern Med. 2020 Jul 20. doi:10.1001/jamainternmed.2020.2821.
FROM JAMA INTERNAL MEDICINE
Bisphosphonates may have limited ‘protective’ effect against knee OA progression
New data from the National Institutes of Health–funded Osteoarthritis Initiative suggest that, in some women at least, taking bisphosphonates may help to reduce the chances that there will be radiographic progression of knee osteoarthritis (OA).
In a propensity-matched cohort analysis, women who had a Kellgren and Lawrence (KL) grade of less than 2 and who used bisphosphonates were half as likely as those who did not use bisphosphonates to have radiographic OA progression at 2 years (hazard ratio, 0.53; 95% confidence interval, 0.35-0.79). Radiographic OA progression has been defined as a one-step increase in the KL grade.
While the association appeared even stronger in women with a KL grade less than 2 and who were not overweight (HR, 0.49; 95% CI, 0.26-0.92), bisphosphonate use was not associated with radiographic OA progression in women with a higher (≥2) KL grade (HR, 1.06; 95% CI, 0.83-1.35).
“In all analyses, the effect of bisphosphonates was larger in radiographic-disease-naive individuals, suggesting protection using bisphosphonates may be more profound in those who do not already have evidence of knee damage or who have mild disease, and once damage occurs, bisphosphonate use may not have much effect,” Kaleen N. Hayes, PharmD, of the University of Toronto and her coauthors reported in the Journal of Bone and Mineral Research.
“Our study was the first to our knowledge to examine bisphosphonate exposure effects in different disease severity subgroups and obesity classifications using a rigorous, propensity-matched time-to-event analysis that uniquely addresses confounding by indication,” Dr. Hayes and her team wrote.
Furthermore, they noted that extensive sensitivity analyses, which included redoing the primary analyses to look at statin use, showed that their main conclusions were unchanged and that this helped account for any potential residual confounding, healthy-user bias, or exposure misclassification.
Study details
The Osteoarthritis Initiative is a 10-year longitudinal cohort study conducted at four clinical sites in the United States and recruited men and women aged 45-75 years over a 2-year period starting in 2004. Dr. Hayes and her coauthors restricted their analyses to women 50 years and older. Their study population consisted of 344 bisphosphonate users and 344 bisphosphonate nonusers.
The main bisphosphonate being taken was alendronate (69%), and the average duration of bisphosphonate use was 3.3 years, but no significant effect of duration of use on radiographic progression was found.
The women were followed until the first radiographic OA progression, or the first missed visit or end of the 2-year follow-up period.
Overall, 95 (13.8%) of the 688 women included in the analysis experienced radiographic OA progression. Of those, 27 (3.9%) had a KL grade of less than 2 and 68 (9.8%) had a KL grade of 2 or greater. Ten women with KL less than 2 and 27 women with KL or 2 or greater were taking bisphosphonates at their baseline visit.
“Kaplan-Meier analysis indicated that non-users and users with a baseline KL grade of 0 or 1 had 2-year risks of progression of 10.5% and 5.9%, respectively, whereas non-users and users with a baseline KL grade of 2 or 3 had 2-year of these women risks of progression of 23.0% and 23.5%, respectively,” reported the authors.
Before propensity score matching, Dr. Hayes and her colleagues observed that women taking bisphosphonates were older, had lower body weight and a higher prevalence of any fracture or hip and vertebral fractures, and were also more likely be White, compared with non-users. “In addition, bisphosphonate-users appeared to be healthier than non-users, as suggested by a lower smoking prevalence, lower average baseline KL grade, lower diabetes prevalence, and higher multivitamin use (a healthy-user proxy),” they acknowledged.
Results in perspective
“The key thing that I’m concerned about when I see something like bisphosphonates and osteoarthritis is just how well confounding has been addressed,” commented Tuhina Neogi, MD, PhD, professor of medicine and epidemiology at Boston University and chief of rheumatology at Boston Medical Center, in an interview.
“So are there factors other than the bisphosphonates themselves that might explain the findings? It looks like they’ve taken into account a lot of important things that one would consider for trying to get the two groups to look as similar as possible,” she added. Dr. Neogi queried, however, if body mass index had been suitably been adjusted for even after propensity score matching.
“The effect estimate is quite large, so I do think there is some confounding. So I would feel comfortable saying that there’s a signal here for bisphosphonates in reducing the risk of progression among those who do not have radiographic OA at baseline,” Dr. Neogi observed.
“The context of all this is that there have been large, well-designed, randomized control trials of oral bisphosphonates from years ago that did not find any benefit of bisphosphonates in [terms of] radiographic OA progression,” Dr. Neogi explained.
In the Knee OA Structural Arthritis (KOSTAR) study, now considered “quite a large landmark study,” the efficacy of risedronate in providing symptom relief and slowing disease progression was studied in almost 2,500 patients. “They saw some improvements in signs and symptoms, but risedronate did not significantly reduce radiographic progression. [However] there were some signals on biomarkers,” Dr. Neogi said.
One of the issues is that radiographs are too insensitive to pick up early bone changes in OA, a fact not missed by Dr. Hayes et al. More recent research has thus looked to using more sensitive imaging methods, such as CT and MRI, such as a recent study published in JAMA looking at the use of intravenous zoledronic acid on bone marrow lesions and cartilage volume. The results did not show any benefit of bisphosphonate use over 2 years.
“So even though we thought the MRI might provide a better way to detect a signal, it hasn’t panned out,” Dr. Neogi said.
But that’s not to say that there isn’t still a signal. Dr. Neogi’s most recent research has been using MRI to look at bone marrow lesion volume in women who were newly starting bisphosphonate therapy versus those who were not, and this has been just been accepted for publication.
“We found no difference in bone marrow lesion volume between the two groups. But in the women who had bone marrow lesions at baseline, there was a statistically significant greater proportion of women on bisphosphonates having a decrease in bone marrow lesion volume than the non-initiators,” she said.
So is there evidence that putting more women on bisphosphonates could prevent OA? “I’m not sure that you would be able to say that this should be something that all postmenopausal women should be on,” Dr. Neogi said.
“There’s a theoretical risk that has not been formally studied that, if you diminish bone turnover and you get more and more mineralization occurring, the bone potentially may have altered mechanical properties, become stiffer and, over the long term, that might not be good for OA.”
She added that, if there is already a clear clinical indication for bisphosphonate use, however, such as older women who have had a fracture and who should be on a bisphosphonate anyway, then “a bisphosphonate has the theoretical potential additional benefit for their osteoarthritis.”
The authors and Dr. Neogi had no conflicts of interest or relationships to disclose.
SOURCE: Hayes KN et al. J Bone Miner Res. 2020 July 14. doi: 10.1002/jbmr.4133.
New data from the National Institutes of Health–funded Osteoarthritis Initiative suggest that, in some women at least, taking bisphosphonates may help to reduce the chances that there will be radiographic progression of knee osteoarthritis (OA).
In a propensity-matched cohort analysis, women who had a Kellgren and Lawrence (KL) grade of less than 2 and who used bisphosphonates were half as likely as those who did not use bisphosphonates to have radiographic OA progression at 2 years (hazard ratio, 0.53; 95% confidence interval, 0.35-0.79). Radiographic OA progression has been defined as a one-step increase in the KL grade.
While the association appeared even stronger in women with a KL grade less than 2 and who were not overweight (HR, 0.49; 95% CI, 0.26-0.92), bisphosphonate use was not associated with radiographic OA progression in women with a higher (≥2) KL grade (HR, 1.06; 95% CI, 0.83-1.35).
“In all analyses, the effect of bisphosphonates was larger in radiographic-disease-naive individuals, suggesting protection using bisphosphonates may be more profound in those who do not already have evidence of knee damage or who have mild disease, and once damage occurs, bisphosphonate use may not have much effect,” Kaleen N. Hayes, PharmD, of the University of Toronto and her coauthors reported in the Journal of Bone and Mineral Research.
“Our study was the first to our knowledge to examine bisphosphonate exposure effects in different disease severity subgroups and obesity classifications using a rigorous, propensity-matched time-to-event analysis that uniquely addresses confounding by indication,” Dr. Hayes and her team wrote.
Furthermore, they noted that extensive sensitivity analyses, which included redoing the primary analyses to look at statin use, showed that their main conclusions were unchanged and that this helped account for any potential residual confounding, healthy-user bias, or exposure misclassification.
Study details
The Osteoarthritis Initiative is a 10-year longitudinal cohort study conducted at four clinical sites in the United States and recruited men and women aged 45-75 years over a 2-year period starting in 2004. Dr. Hayes and her coauthors restricted their analyses to women 50 years and older. Their study population consisted of 344 bisphosphonate users and 344 bisphosphonate nonusers.
The main bisphosphonate being taken was alendronate (69%), and the average duration of bisphosphonate use was 3.3 years, but no significant effect of duration of use on radiographic progression was found.
The women were followed until the first radiographic OA progression, or the first missed visit or end of the 2-year follow-up period.
Overall, 95 (13.8%) of the 688 women included in the analysis experienced radiographic OA progression. Of those, 27 (3.9%) had a KL grade of less than 2 and 68 (9.8%) had a KL grade of 2 or greater. Ten women with KL less than 2 and 27 women with KL or 2 or greater were taking bisphosphonates at their baseline visit.
“Kaplan-Meier analysis indicated that non-users and users with a baseline KL grade of 0 or 1 had 2-year risks of progression of 10.5% and 5.9%, respectively, whereas non-users and users with a baseline KL grade of 2 or 3 had 2-year of these women risks of progression of 23.0% and 23.5%, respectively,” reported the authors.
Before propensity score matching, Dr. Hayes and her colleagues observed that women taking bisphosphonates were older, had lower body weight and a higher prevalence of any fracture or hip and vertebral fractures, and were also more likely be White, compared with non-users. “In addition, bisphosphonate-users appeared to be healthier than non-users, as suggested by a lower smoking prevalence, lower average baseline KL grade, lower diabetes prevalence, and higher multivitamin use (a healthy-user proxy),” they acknowledged.
Results in perspective
“The key thing that I’m concerned about when I see something like bisphosphonates and osteoarthritis is just how well confounding has been addressed,” commented Tuhina Neogi, MD, PhD, professor of medicine and epidemiology at Boston University and chief of rheumatology at Boston Medical Center, in an interview.
“So are there factors other than the bisphosphonates themselves that might explain the findings? It looks like they’ve taken into account a lot of important things that one would consider for trying to get the two groups to look as similar as possible,” she added. Dr. Neogi queried, however, if body mass index had been suitably been adjusted for even after propensity score matching.
“The effect estimate is quite large, so I do think there is some confounding. So I would feel comfortable saying that there’s a signal here for bisphosphonates in reducing the risk of progression among those who do not have radiographic OA at baseline,” Dr. Neogi observed.
“The context of all this is that there have been large, well-designed, randomized control trials of oral bisphosphonates from years ago that did not find any benefit of bisphosphonates in [terms of] radiographic OA progression,” Dr. Neogi explained.
In the Knee OA Structural Arthritis (KOSTAR) study, now considered “quite a large landmark study,” the efficacy of risedronate in providing symptom relief and slowing disease progression was studied in almost 2,500 patients. “They saw some improvements in signs and symptoms, but risedronate did not significantly reduce radiographic progression. [However] there were some signals on biomarkers,” Dr. Neogi said.
One of the issues is that radiographs are too insensitive to pick up early bone changes in OA, a fact not missed by Dr. Hayes et al. More recent research has thus looked to using more sensitive imaging methods, such as CT and MRI, such as a recent study published in JAMA looking at the use of intravenous zoledronic acid on bone marrow lesions and cartilage volume. The results did not show any benefit of bisphosphonate use over 2 years.
“So even though we thought the MRI might provide a better way to detect a signal, it hasn’t panned out,” Dr. Neogi said.
But that’s not to say that there isn’t still a signal. Dr. Neogi’s most recent research has been using MRI to look at bone marrow lesion volume in women who were newly starting bisphosphonate therapy versus those who were not, and this has been just been accepted for publication.
“We found no difference in bone marrow lesion volume between the two groups. But in the women who had bone marrow lesions at baseline, there was a statistically significant greater proportion of women on bisphosphonates having a decrease in bone marrow lesion volume than the non-initiators,” she said.
So is there evidence that putting more women on bisphosphonates could prevent OA? “I’m not sure that you would be able to say that this should be something that all postmenopausal women should be on,” Dr. Neogi said.
“There’s a theoretical risk that has not been formally studied that, if you diminish bone turnover and you get more and more mineralization occurring, the bone potentially may have altered mechanical properties, become stiffer and, over the long term, that might not be good for OA.”
She added that, if there is already a clear clinical indication for bisphosphonate use, however, such as older women who have had a fracture and who should be on a bisphosphonate anyway, then “a bisphosphonate has the theoretical potential additional benefit for their osteoarthritis.”
The authors and Dr. Neogi had no conflicts of interest or relationships to disclose.
SOURCE: Hayes KN et al. J Bone Miner Res. 2020 July 14. doi: 10.1002/jbmr.4133.
New data from the National Institutes of Health–funded Osteoarthritis Initiative suggest that, in some women at least, taking bisphosphonates may help to reduce the chances that there will be radiographic progression of knee osteoarthritis (OA).
In a propensity-matched cohort analysis, women who had a Kellgren and Lawrence (KL) grade of less than 2 and who used bisphosphonates were half as likely as those who did not use bisphosphonates to have radiographic OA progression at 2 years (hazard ratio, 0.53; 95% confidence interval, 0.35-0.79). Radiographic OA progression has been defined as a one-step increase in the KL grade.
While the association appeared even stronger in women with a KL grade less than 2 and who were not overweight (HR, 0.49; 95% CI, 0.26-0.92), bisphosphonate use was not associated with radiographic OA progression in women with a higher (≥2) KL grade (HR, 1.06; 95% CI, 0.83-1.35).
“In all analyses, the effect of bisphosphonates was larger in radiographic-disease-naive individuals, suggesting protection using bisphosphonates may be more profound in those who do not already have evidence of knee damage or who have mild disease, and once damage occurs, bisphosphonate use may not have much effect,” Kaleen N. Hayes, PharmD, of the University of Toronto and her coauthors reported in the Journal of Bone and Mineral Research.
“Our study was the first to our knowledge to examine bisphosphonate exposure effects in different disease severity subgroups and obesity classifications using a rigorous, propensity-matched time-to-event analysis that uniquely addresses confounding by indication,” Dr. Hayes and her team wrote.
Furthermore, they noted that extensive sensitivity analyses, which included redoing the primary analyses to look at statin use, showed that their main conclusions were unchanged and that this helped account for any potential residual confounding, healthy-user bias, or exposure misclassification.
Study details
The Osteoarthritis Initiative is a 10-year longitudinal cohort study conducted at four clinical sites in the United States and recruited men and women aged 45-75 years over a 2-year period starting in 2004. Dr. Hayes and her coauthors restricted their analyses to women 50 years and older. Their study population consisted of 344 bisphosphonate users and 344 bisphosphonate nonusers.
The main bisphosphonate being taken was alendronate (69%), and the average duration of bisphosphonate use was 3.3 years, but no significant effect of duration of use on radiographic progression was found.
The women were followed until the first radiographic OA progression, or the first missed visit or end of the 2-year follow-up period.
Overall, 95 (13.8%) of the 688 women included in the analysis experienced radiographic OA progression. Of those, 27 (3.9%) had a KL grade of less than 2 and 68 (9.8%) had a KL grade of 2 or greater. Ten women with KL less than 2 and 27 women with KL or 2 or greater were taking bisphosphonates at their baseline visit.
“Kaplan-Meier analysis indicated that non-users and users with a baseline KL grade of 0 or 1 had 2-year risks of progression of 10.5% and 5.9%, respectively, whereas non-users and users with a baseline KL grade of 2 or 3 had 2-year of these women risks of progression of 23.0% and 23.5%, respectively,” reported the authors.
Before propensity score matching, Dr. Hayes and her colleagues observed that women taking bisphosphonates were older, had lower body weight and a higher prevalence of any fracture or hip and vertebral fractures, and were also more likely be White, compared with non-users. “In addition, bisphosphonate-users appeared to be healthier than non-users, as suggested by a lower smoking prevalence, lower average baseline KL grade, lower diabetes prevalence, and higher multivitamin use (a healthy-user proxy),” they acknowledged.
Results in perspective
“The key thing that I’m concerned about when I see something like bisphosphonates and osteoarthritis is just how well confounding has been addressed,” commented Tuhina Neogi, MD, PhD, professor of medicine and epidemiology at Boston University and chief of rheumatology at Boston Medical Center, in an interview.
“So are there factors other than the bisphosphonates themselves that might explain the findings? It looks like they’ve taken into account a lot of important things that one would consider for trying to get the two groups to look as similar as possible,” she added. Dr. Neogi queried, however, if body mass index had been suitably been adjusted for even after propensity score matching.
“The effect estimate is quite large, so I do think there is some confounding. So I would feel comfortable saying that there’s a signal here for bisphosphonates in reducing the risk of progression among those who do not have radiographic OA at baseline,” Dr. Neogi observed.
“The context of all this is that there have been large, well-designed, randomized control trials of oral bisphosphonates from years ago that did not find any benefit of bisphosphonates in [terms of] radiographic OA progression,” Dr. Neogi explained.
In the Knee OA Structural Arthritis (KOSTAR) study, now considered “quite a large landmark study,” the efficacy of risedronate in providing symptom relief and slowing disease progression was studied in almost 2,500 patients. “They saw some improvements in signs and symptoms, but risedronate did not significantly reduce radiographic progression. [However] there were some signals on biomarkers,” Dr. Neogi said.
One of the issues is that radiographs are too insensitive to pick up early bone changes in OA, a fact not missed by Dr. Hayes et al. More recent research has thus looked to using more sensitive imaging methods, such as CT and MRI, such as a recent study published in JAMA looking at the use of intravenous zoledronic acid on bone marrow lesions and cartilage volume. The results did not show any benefit of bisphosphonate use over 2 years.
“So even though we thought the MRI might provide a better way to detect a signal, it hasn’t panned out,” Dr. Neogi said.
But that’s not to say that there isn’t still a signal. Dr. Neogi’s most recent research has been using MRI to look at bone marrow lesion volume in women who were newly starting bisphosphonate therapy versus those who were not, and this has been just been accepted for publication.
“We found no difference in bone marrow lesion volume between the two groups. But in the women who had bone marrow lesions at baseline, there was a statistically significant greater proportion of women on bisphosphonates having a decrease in bone marrow lesion volume than the non-initiators,” she said.
So is there evidence that putting more women on bisphosphonates could prevent OA? “I’m not sure that you would be able to say that this should be something that all postmenopausal women should be on,” Dr. Neogi said.
“There’s a theoretical risk that has not been formally studied that, if you diminish bone turnover and you get more and more mineralization occurring, the bone potentially may have altered mechanical properties, become stiffer and, over the long term, that might not be good for OA.”
She added that, if there is already a clear clinical indication for bisphosphonate use, however, such as older women who have had a fracture and who should be on a bisphosphonate anyway, then “a bisphosphonate has the theoretical potential additional benefit for their osteoarthritis.”
The authors and Dr. Neogi had no conflicts of interest or relationships to disclose.
SOURCE: Hayes KN et al. J Bone Miner Res. 2020 July 14. doi: 10.1002/jbmr.4133.
FROM THE JOURNAL OF BONE AND MINERAL RESEARCH
Move over supplements, here come medical foods
As the Food and Drug Administration focuses on other issues, companies, both big and small, are looking to boost physician and consumer interest in their “medical foods” – products that fall somewhere between drugs and supplements and promise to mitigate symptoms, or even address underlying pathologies, of a range of diseases.
Manufacturers now market an array of medical foods, ranging from powders and capsules for Alzheimer disease to low-protein spaghetti for chronic kidney disease (CKD). The FDA has not been completely absent; it takes a narrow view of what medical conditions qualify for treatment with food products and has warned some manufacturers that their misbranded products are acting more like unapproved drugs.
By the FDA’s definition, medical food is limited to products that provide crucial therapy for patients with inborn errors of metabolism (IEM). An example is specialized baby formula for infants with phenylketonuria. Unlike supplements, medical foods are supposed to be used under the supervision of a physician. This has prompted some sales reps to turn up in the clinic, and most manufacturers have online approval forms for doctors to sign. Manufacturers, advisers, and regulators were interviewed for a closer look at this burgeoning industry.
The market
The global market for medical foods – about $18 billion in 2019 – is expected to grow steadily in the near future. It is drawing more interest, especially in Europe, where medical foods are more accepted by physicians and consumers, Meghan Donnelly, MS, RDN, said in an interview. She is a registered dietitian who conducts physician outreach in the United States for Flavis, a division of Dr. Schär. That company, based in northern Italy, started out targeting IEMs but now also sells gluten-free foods for celiac disease and low-protein foods for CKD.
It is still a niche market in the United States – and isn’t likely to ever approach the size of the supplement market, according to Marcus Charuvastra, the managing director of Targeted Medical Pharma, which markets Theramine capsules for pain management, among many other products. But it could still be a big win for a manufacturer if they get a small slice of a big market, such as for Alzheimer disease.
Defining medical food
According to an update of the Orphan Drug Act in 1988, a medical food is “a food which is formulated to be consumed or administered enterally under the supervision of a physician and which is intended for the specific dietary management of a disease or condition for which distinctive nutritional requirements, based on recognized scientific principles, are established by medical evaluation.” The FDA issued regulations to accompany that law in 1993 but has since only issued a guidance document that is not legally binding.
Medical foods are not drugs and they are not supplements (the latter are intended only for healthy people). The FDA doesn’t require formal approval of a medical food, but, by law, the ingredients must be generally recognized as safe, and manufacturers must follow good manufacturing practices. However, the agency has taken a narrow view of what conditions require medical foods.
Policing medical foods hasn’t been a priority for the FDA, which is why there has been a proliferation of products that don’t meet the FDA’s view of the statutory definition of medical foods, according to Miriam Guggenheim, a food and drug law attorney in Washington, D.C. The FDA usually takes enforcement action when it sees a risk to the public’s health.
The agency’s stance has led to confusion – among manufacturers, physicians, consumers, and even regulators – making the market a kind of Wild West, according to Paul Hyman, a Washington, D.C.–based attorney who has represented medical food companies.
George A. Burdock, PhD, an Orlando-based regulatory consultant who has worked with medical food makers, believes the FDA will be forced to expand their narrow definition. He foresees a reconsideration of many medical food products in light of an October 2019 White House executive order prohibiting federal agencies from issuing guidance in lieu of rules.
Manufacturers and the FDA differ
One example of a product about which regulators and manufacturers differ is Theramine, which is described as “specially designed to supply the nervous system with the fuel it needs to meet the altered metabolic requirements of chronic pain and inflammatory disorders.”
It is not considered a medical food by the FDA, and the company has had numerous discussions with the agency about their diverging views, according to Mr. Charuvastra. “We’ve had our warning letters and we’ve had our sit downs, and we just had an inspection.”
Targeted Medical Pharma continues to market its products as medical foods but steers away from making any claims that they are like drugs, he said.
Confusion about medical foods has been exposed in the California Workers’ Compensation System by Leslie Wilson, PhD, and colleagues at the University of California, San Francisco. They found that physicians regularly wrote medical food prescriptions for non–FDA-approved uses and that the system reimbursed the majority of the products at a cost of $15.5 million from 2011 to 2013. More than half of these prescriptions were for Theramine.
Dr. Wilson reported that, for most products, no evidence supported effectiveness, and they were frequently mislabeled – for all 36 that were studied, submissions for reimbursement were made using a National Drug Code, an impossibility because medical foods are not drugs, and 14 were labeled “Rx only.”
Big-name companies joining in
The FDA does not keep a list of approved medical foods or manufacturers. Both small businesses and big food companies like Danone, Nestlé, and Abbott are players. Most products are sold online.
In the United States, Danone’s Nutricia division sells formulas and low-protein foods for IEMs. They also sell Ketocal, a powder or ready-to-drink liquid that is pitched as a balanced medical food to simplify and optimize the ketogenic diet for children with intractable epilepsy. Yet the FDA does not include epilepsy among the conditions that medical foods can treat.
Nestlé sells traditional medical foods for IEMs and also markets a range of what it calls nutritional therapies for such conditions as irritable bowel syndrome and dysphagia.
Nestlé is a minority shareholder in Axona, a product originally developed by Accera (Cerecin as of 2018). Jacquelyn Campo, senior director of global communications at Nestlé Health Sciences, said that the company is not actively involved in the operations management of Cerecin. However, on its website, Nestlé touts Axona, which is only available in the United States, as a “medical food” that “is intended for the clinical dietary management of mild to moderate Alzheimer disease.” The Axona site claims that the main ingredient, caprylic triglyceride, is broken down into ketones that provide fuel to treat cerebral hypometabolism, a precursor to Alzheimer disease. In a 2009 study, daily dosing of a preliminary formulation was associated with improved cognitive performance compared with placebo in patients with mild to moderate Alzheimer disease.
In 2013, the FDA warned Accera that it was misbranding Axona as a medical food and that the therapeutic claims the company was making would make the product an unapproved drug. Ms. Campo said Nestlé is aware of the agency’s warning, but added, “to our knowledge, Cerecin provided answers to the issues raised by the FDA.”
With the goal of getting drug approval, Accera went on to test a tweaked formulation in a 400-patient randomized, placebo-controlled trial called NOURISH AD that ultimately failed. Nevertheless, Axona is still marketed as a medical food. It costs about $100 for a month’s supply.
Repeated requests for comment from Cerecin were not answered. Danielle Schor, an FDA spokesperson, said the agency will not discuss the status of individual products.
More disputes and insurance coverage
Mary Ann DeMarco, executive director of sales and marketing for the Scottsdale, Ariz.–based medical food maker Primus Pharmaceuticals, said the company believes its products fit within the FDA’s medical foods rubric.
These include Fosteum Plus capsules, which it markets “for the clinical dietary management of the metabolic processes of osteopenia and osteoporosis.” The capsules contain a combination of genistein, zinc, calcium, phosphate, vitamin K2, and vitamin D. As proof of effectiveness, the company cites clinical data on some of the ingredients – not the product itself.
Primus has run afoul of the FDA before when it similarly positioned another product, called Limbrel, as a medical food for osteoarthritis. From 2007 to 2017, the FDA received 194 adverse event reports associated with Limbrel, including reports of drug-induced liver injury, pancreatitis, and hypersensitivity pneumonitis. In December 2017, the agency urged Primus to recall Limbrel, a move that it said was “necessary to protect the public health and welfare.” Primus withdrew the product but laid out a defense of Limbrel on a devoted website.
The FDA would not comment any further, said Ms. Schor. Ms. DeMarco said that Primus is working with the FDA to bring Limbrel back to market.
A lack of insurance coverage – even for approved medical foods for IEMs – has frustrated advocates, parents, and manufacturers. They are putting their weight behind the Medical Nutrition Equity Act, which would mandate public and private payer coverage of medical foods for IEMs and digestive conditions such as Crohn disease. That 2019 House bill has 56 cosponsors; there is no Senate companion bill.
“If you can get reimbursement, it really makes the market,” for Primus and the other manufacturers, Mr. Hyman said.
Primus Pharmaceuticals has launched its own campaign, Cover My Medical Foods, to enlist consumers and others to the cause.
Partnering with advocates
Although its low-protein breads, pastas, and baking products are not considered medical foods by the FDA, Dr. Schär is marketing them as such in the United States. They are trying to make a mark in CKD, according to Ms. Donnelly. She added that Dr. Schär has been successful in Europe, where nutrition therapy is more integrated in the health care system.
In 2019, Flavis and the National Kidney Foundation joined forces to raise awareness of nutritional interventions and to build enthusiasm for the Flavis products. The partnership has now ended, mostly because Flavis could no longer afford it, according to Ms. Donnelly.
“Information on diet and nutrition is the most requested subject matter from the NKF,” said Anthony Gucciardo, senior vice president of strategic partnerships at the foundation. The partnership “has never been necessarily about promoting their products per se; it’s promoting a healthy diet and really a diet specific for CKD.”
The NKF developed cobranded materials on low-protein foods for physicians and a teaching tool they could use with patients. Consumers could access nutrition information and a discount on Flavis products on a dedicated webpage. The foundation didn’t describe the low-protein products as medical foods, said Mr. Gucciardo, even if Flavis promoted them as such.
In patients with CKD, dietary management can help prevent the progression to end-stage renal disease. Although Medicare covers medical nutrition therapy – in which patients receive personalized assessments and dietary advice – uptake is abysmally low, according to a 2018 study.
Dr. Burdock thinks low-protein foods for CKD do meet the FDA’s criteria for a medical food but that the agency might not necessarily agree with him. The FDA would not comment.
Physician beware
When it comes to medical foods, the FDA has often looked the other way because the ingredients may already have been proven safe and the danger to an individual or to the public’s health is relatively low, according to Dr. Burdock and Mr. Hyman.
However, if the agency “feels that a medical food will prevent people from seeking medical care or there is potential to defraud the public, it is justified in taking action against the company,” said Dr. Burdock.
According to Dr. Wilson, the pharmacist who reported on the inappropriate medical food prescriptions in the California system, the FDA could help by creating a list of approved medical foods. Physicians should take time to learn about the difference between medical foods and supplements, she said, adding that they should also not hesitate to “question the veracity of the claims for them.”
Ms. Guggenheim believed doctors need to know that, for the most part, these are not FDA-approved products. She emphasized the importance of evaluating the products and looking at the data of their impact on a disease or condition.
“Many of these companies strongly believe that the products work and help people, so clinicians need to be very data driven,” she said.
A version of this article originally appeared on Medscape.com.
As the Food and Drug Administration focuses on other issues, companies, both big and small, are looking to boost physician and consumer interest in their “medical foods” – products that fall somewhere between drugs and supplements and promise to mitigate symptoms, or even address underlying pathologies, of a range of diseases.
Manufacturers now market an array of medical foods, ranging from powders and capsules for Alzheimer disease to low-protein spaghetti for chronic kidney disease (CKD). The FDA has not been completely absent; it takes a narrow view of what medical conditions qualify for treatment with food products and has warned some manufacturers that their misbranded products are acting more like unapproved drugs.
By the FDA’s definition, medical food is limited to products that provide crucial therapy for patients with inborn errors of metabolism (IEM). An example is specialized baby formula for infants with phenylketonuria. Unlike supplements, medical foods are supposed to be used under the supervision of a physician. This has prompted some sales reps to turn up in the clinic, and most manufacturers have online approval forms for doctors to sign. Manufacturers, advisers, and regulators were interviewed for a closer look at this burgeoning industry.
The market
The global market for medical foods – about $18 billion in 2019 – is expected to grow steadily in the near future. It is drawing more interest, especially in Europe, where medical foods are more accepted by physicians and consumers, Meghan Donnelly, MS, RDN, said in an interview. She is a registered dietitian who conducts physician outreach in the United States for Flavis, a division of Dr. Schär. That company, based in northern Italy, started out targeting IEMs but now also sells gluten-free foods for celiac disease and low-protein foods for CKD.
It is still a niche market in the United States – and isn’t likely to ever approach the size of the supplement market, according to Marcus Charuvastra, the managing director of Targeted Medical Pharma, which markets Theramine capsules for pain management, among many other products. But it could still be a big win for a manufacturer if they get a small slice of a big market, such as for Alzheimer disease.
Defining medical food
According to an update of the Orphan Drug Act in 1988, a medical food is “a food which is formulated to be consumed or administered enterally under the supervision of a physician and which is intended for the specific dietary management of a disease or condition for which distinctive nutritional requirements, based on recognized scientific principles, are established by medical evaluation.” The FDA issued regulations to accompany that law in 1993 but has since only issued a guidance document that is not legally binding.
Medical foods are not drugs and they are not supplements (the latter are intended only for healthy people). The FDA doesn’t require formal approval of a medical food, but, by law, the ingredients must be generally recognized as safe, and manufacturers must follow good manufacturing practices. However, the agency has taken a narrow view of what conditions require medical foods.
Policing medical foods hasn’t been a priority for the FDA, which is why there has been a proliferation of products that don’t meet the FDA’s view of the statutory definition of medical foods, according to Miriam Guggenheim, a food and drug law attorney in Washington, D.C. The FDA usually takes enforcement action when it sees a risk to the public’s health.
The agency’s stance has led to confusion – among manufacturers, physicians, consumers, and even regulators – making the market a kind of Wild West, according to Paul Hyman, a Washington, D.C.–based attorney who has represented medical food companies.
George A. Burdock, PhD, an Orlando-based regulatory consultant who has worked with medical food makers, believes the FDA will be forced to expand their narrow definition. He foresees a reconsideration of many medical food products in light of an October 2019 White House executive order prohibiting federal agencies from issuing guidance in lieu of rules.
Manufacturers and the FDA differ
One example of a product about which regulators and manufacturers differ is Theramine, which is described as “specially designed to supply the nervous system with the fuel it needs to meet the altered metabolic requirements of chronic pain and inflammatory disorders.”
It is not considered a medical food by the FDA, and the company has had numerous discussions with the agency about their diverging views, according to Mr. Charuvastra. “We’ve had our warning letters and we’ve had our sit downs, and we just had an inspection.”
Targeted Medical Pharma continues to market its products as medical foods but steers away from making any claims that they are like drugs, he said.
Confusion about medical foods has been exposed in the California Workers’ Compensation System by Leslie Wilson, PhD, and colleagues at the University of California, San Francisco. They found that physicians regularly wrote medical food prescriptions for non–FDA-approved uses and that the system reimbursed the majority of the products at a cost of $15.5 million from 2011 to 2013. More than half of these prescriptions were for Theramine.
Dr. Wilson reported that, for most products, no evidence supported effectiveness, and they were frequently mislabeled – for all 36 that were studied, submissions for reimbursement were made using a National Drug Code, an impossibility because medical foods are not drugs, and 14 were labeled “Rx only.”
Big-name companies joining in
The FDA does not keep a list of approved medical foods or manufacturers. Both small businesses and big food companies like Danone, Nestlé, and Abbott are players. Most products are sold online.
In the United States, Danone’s Nutricia division sells formulas and low-protein foods for IEMs. They also sell Ketocal, a powder or ready-to-drink liquid that is pitched as a balanced medical food to simplify and optimize the ketogenic diet for children with intractable epilepsy. Yet the FDA does not include epilepsy among the conditions that medical foods can treat.
Nestlé sells traditional medical foods for IEMs and also markets a range of what it calls nutritional therapies for such conditions as irritable bowel syndrome and dysphagia.
Nestlé is a minority shareholder in Axona, a product originally developed by Accera (Cerecin as of 2018). Jacquelyn Campo, senior director of global communications at Nestlé Health Sciences, said that the company is not actively involved in the operations management of Cerecin. However, on its website, Nestlé touts Axona, which is only available in the United States, as a “medical food” that “is intended for the clinical dietary management of mild to moderate Alzheimer disease.” The Axona site claims that the main ingredient, caprylic triglyceride, is broken down into ketones that provide fuel to treat cerebral hypometabolism, a precursor to Alzheimer disease. In a 2009 study, daily dosing of a preliminary formulation was associated with improved cognitive performance compared with placebo in patients with mild to moderate Alzheimer disease.
In 2013, the FDA warned Accera that it was misbranding Axona as a medical food and that the therapeutic claims the company was making would make the product an unapproved drug. Ms. Campo said Nestlé is aware of the agency’s warning, but added, “to our knowledge, Cerecin provided answers to the issues raised by the FDA.”
With the goal of getting drug approval, Accera went on to test a tweaked formulation in a 400-patient randomized, placebo-controlled trial called NOURISH AD that ultimately failed. Nevertheless, Axona is still marketed as a medical food. It costs about $100 for a month’s supply.
Repeated requests for comment from Cerecin were not answered. Danielle Schor, an FDA spokesperson, said the agency will not discuss the status of individual products.
More disputes and insurance coverage
Mary Ann DeMarco, executive director of sales and marketing for the Scottsdale, Ariz.–based medical food maker Primus Pharmaceuticals, said the company believes its products fit within the FDA’s medical foods rubric.
These include Fosteum Plus capsules, which it markets “for the clinical dietary management of the metabolic processes of osteopenia and osteoporosis.” The capsules contain a combination of genistein, zinc, calcium, phosphate, vitamin K2, and vitamin D. As proof of effectiveness, the company cites clinical data on some of the ingredients – not the product itself.
Primus has run afoul of the FDA before when it similarly positioned another product, called Limbrel, as a medical food for osteoarthritis. From 2007 to 2017, the FDA received 194 adverse event reports associated with Limbrel, including reports of drug-induced liver injury, pancreatitis, and hypersensitivity pneumonitis. In December 2017, the agency urged Primus to recall Limbrel, a move that it said was “necessary to protect the public health and welfare.” Primus withdrew the product but laid out a defense of Limbrel on a devoted website.
The FDA would not comment any further, said Ms. Schor. Ms. DeMarco said that Primus is working with the FDA to bring Limbrel back to market.
A lack of insurance coverage – even for approved medical foods for IEMs – has frustrated advocates, parents, and manufacturers. They are putting their weight behind the Medical Nutrition Equity Act, which would mandate public and private payer coverage of medical foods for IEMs and digestive conditions such as Crohn disease. That 2019 House bill has 56 cosponsors; there is no Senate companion bill.
“If you can get reimbursement, it really makes the market,” for Primus and the other manufacturers, Mr. Hyman said.
Primus Pharmaceuticals has launched its own campaign, Cover My Medical Foods, to enlist consumers and others to the cause.
Partnering with advocates
Although its low-protein breads, pastas, and baking products are not considered medical foods by the FDA, Dr. Schär is marketing them as such in the United States. They are trying to make a mark in CKD, according to Ms. Donnelly. She added that Dr. Schär has been successful in Europe, where nutrition therapy is more integrated in the health care system.
In 2019, Flavis and the National Kidney Foundation joined forces to raise awareness of nutritional interventions and to build enthusiasm for the Flavis products. The partnership has now ended, mostly because Flavis could no longer afford it, according to Ms. Donnelly.
“Information on diet and nutrition is the most requested subject matter from the NKF,” said Anthony Gucciardo, senior vice president of strategic partnerships at the foundation. The partnership “has never been necessarily about promoting their products per se; it’s promoting a healthy diet and really a diet specific for CKD.”
The NKF developed cobranded materials on low-protein foods for physicians and a teaching tool they could use with patients. Consumers could access nutrition information and a discount on Flavis products on a dedicated webpage. The foundation didn’t describe the low-protein products as medical foods, said Mr. Gucciardo, even if Flavis promoted them as such.
In patients with CKD, dietary management can help prevent the progression to end-stage renal disease. Although Medicare covers medical nutrition therapy – in which patients receive personalized assessments and dietary advice – uptake is abysmally low, according to a 2018 study.
Dr. Burdock thinks low-protein foods for CKD do meet the FDA’s criteria for a medical food but that the agency might not necessarily agree with him. The FDA would not comment.
Physician beware
When it comes to medical foods, the FDA has often looked the other way because the ingredients may already have been proven safe and the danger to an individual or to the public’s health is relatively low, according to Dr. Burdock and Mr. Hyman.
However, if the agency “feels that a medical food will prevent people from seeking medical care or there is potential to defraud the public, it is justified in taking action against the company,” said Dr. Burdock.
According to Dr. Wilson, the pharmacist who reported on the inappropriate medical food prescriptions in the California system, the FDA could help by creating a list of approved medical foods. Physicians should take time to learn about the difference between medical foods and supplements, she said, adding that they should also not hesitate to “question the veracity of the claims for them.”
Ms. Guggenheim believed doctors need to know that, for the most part, these are not FDA-approved products. She emphasized the importance of evaluating the products and looking at the data of their impact on a disease or condition.
“Many of these companies strongly believe that the products work and help people, so clinicians need to be very data driven,” she said.
A version of this article originally appeared on Medscape.com.
As the Food and Drug Administration focuses on other issues, companies, both big and small, are looking to boost physician and consumer interest in their “medical foods” – products that fall somewhere between drugs and supplements and promise to mitigate symptoms, or even address underlying pathologies, of a range of diseases.
Manufacturers now market an array of medical foods, ranging from powders and capsules for Alzheimer disease to low-protein spaghetti for chronic kidney disease (CKD). The FDA has not been completely absent; it takes a narrow view of what medical conditions qualify for treatment with food products and has warned some manufacturers that their misbranded products are acting more like unapproved drugs.
By the FDA’s definition, medical food is limited to products that provide crucial therapy for patients with inborn errors of metabolism (IEM). An example is specialized baby formula for infants with phenylketonuria. Unlike supplements, medical foods are supposed to be used under the supervision of a physician. This has prompted some sales reps to turn up in the clinic, and most manufacturers have online approval forms for doctors to sign. Manufacturers, advisers, and regulators were interviewed for a closer look at this burgeoning industry.
The market
The global market for medical foods – about $18 billion in 2019 – is expected to grow steadily in the near future. It is drawing more interest, especially in Europe, where medical foods are more accepted by physicians and consumers, Meghan Donnelly, MS, RDN, said in an interview. She is a registered dietitian who conducts physician outreach in the United States for Flavis, a division of Dr. Schär. That company, based in northern Italy, started out targeting IEMs but now also sells gluten-free foods for celiac disease and low-protein foods for CKD.
It is still a niche market in the United States – and isn’t likely to ever approach the size of the supplement market, according to Marcus Charuvastra, the managing director of Targeted Medical Pharma, which markets Theramine capsules for pain management, among many other products. But it could still be a big win for a manufacturer if they get a small slice of a big market, such as for Alzheimer disease.
Defining medical food
According to an update of the Orphan Drug Act in 1988, a medical food is “a food which is formulated to be consumed or administered enterally under the supervision of a physician and which is intended for the specific dietary management of a disease or condition for which distinctive nutritional requirements, based on recognized scientific principles, are established by medical evaluation.” The FDA issued regulations to accompany that law in 1993 but has since only issued a guidance document that is not legally binding.
Medical foods are not drugs and they are not supplements (the latter are intended only for healthy people). The FDA doesn’t require formal approval of a medical food, but, by law, the ingredients must be generally recognized as safe, and manufacturers must follow good manufacturing practices. However, the agency has taken a narrow view of what conditions require medical foods.
Policing medical foods hasn’t been a priority for the FDA, which is why there has been a proliferation of products that don’t meet the FDA’s view of the statutory definition of medical foods, according to Miriam Guggenheim, a food and drug law attorney in Washington, D.C. The FDA usually takes enforcement action when it sees a risk to the public’s health.
The agency’s stance has led to confusion – among manufacturers, physicians, consumers, and even regulators – making the market a kind of Wild West, according to Paul Hyman, a Washington, D.C.–based attorney who has represented medical food companies.
George A. Burdock, PhD, an Orlando-based regulatory consultant who has worked with medical food makers, believes the FDA will be forced to expand their narrow definition. He foresees a reconsideration of many medical food products in light of an October 2019 White House executive order prohibiting federal agencies from issuing guidance in lieu of rules.
Manufacturers and the FDA differ
One example of a product about which regulators and manufacturers differ is Theramine, which is described as “specially designed to supply the nervous system with the fuel it needs to meet the altered metabolic requirements of chronic pain and inflammatory disorders.”
It is not considered a medical food by the FDA, and the company has had numerous discussions with the agency about their diverging views, according to Mr. Charuvastra. “We’ve had our warning letters and we’ve had our sit downs, and we just had an inspection.”
Targeted Medical Pharma continues to market its products as medical foods but steers away from making any claims that they are like drugs, he said.
Confusion about medical foods has been exposed in the California Workers’ Compensation System by Leslie Wilson, PhD, and colleagues at the University of California, San Francisco. They found that physicians regularly wrote medical food prescriptions for non–FDA-approved uses and that the system reimbursed the majority of the products at a cost of $15.5 million from 2011 to 2013. More than half of these prescriptions were for Theramine.
Dr. Wilson reported that, for most products, no evidence supported effectiveness, and they were frequently mislabeled – for all 36 that were studied, submissions for reimbursement were made using a National Drug Code, an impossibility because medical foods are not drugs, and 14 were labeled “Rx only.”
Big-name companies joining in
The FDA does not keep a list of approved medical foods or manufacturers. Both small businesses and big food companies like Danone, Nestlé, and Abbott are players. Most products are sold online.
In the United States, Danone’s Nutricia division sells formulas and low-protein foods for IEMs. They also sell Ketocal, a powder or ready-to-drink liquid that is pitched as a balanced medical food to simplify and optimize the ketogenic diet for children with intractable epilepsy. Yet the FDA does not include epilepsy among the conditions that medical foods can treat.
Nestlé sells traditional medical foods for IEMs and also markets a range of what it calls nutritional therapies for such conditions as irritable bowel syndrome and dysphagia.
Nestlé is a minority shareholder in Axona, a product originally developed by Accera (Cerecin as of 2018). Jacquelyn Campo, senior director of global communications at Nestlé Health Sciences, said that the company is not actively involved in the operations management of Cerecin. However, on its website, Nestlé touts Axona, which is only available in the United States, as a “medical food” that “is intended for the clinical dietary management of mild to moderate Alzheimer disease.” The Axona site claims that the main ingredient, caprylic triglyceride, is broken down into ketones that provide fuel to treat cerebral hypometabolism, a precursor to Alzheimer disease. In a 2009 study, daily dosing of a preliminary formulation was associated with improved cognitive performance compared with placebo in patients with mild to moderate Alzheimer disease.
In 2013, the FDA warned Accera that it was misbranding Axona as a medical food and that the therapeutic claims the company was making would make the product an unapproved drug. Ms. Campo said Nestlé is aware of the agency’s warning, but added, “to our knowledge, Cerecin provided answers to the issues raised by the FDA.”
With the goal of getting drug approval, Accera went on to test a tweaked formulation in a 400-patient randomized, placebo-controlled trial called NOURISH AD that ultimately failed. Nevertheless, Axona is still marketed as a medical food. It costs about $100 for a month’s supply.
Repeated requests for comment from Cerecin were not answered. Danielle Schor, an FDA spokesperson, said the agency will not discuss the status of individual products.
More disputes and insurance coverage
Mary Ann DeMarco, executive director of sales and marketing for the Scottsdale, Ariz.–based medical food maker Primus Pharmaceuticals, said the company believes its products fit within the FDA’s medical foods rubric.
These include Fosteum Plus capsules, which it markets “for the clinical dietary management of the metabolic processes of osteopenia and osteoporosis.” The capsules contain a combination of genistein, zinc, calcium, phosphate, vitamin K2, and vitamin D. As proof of effectiveness, the company cites clinical data on some of the ingredients – not the product itself.
Primus has run afoul of the FDA before when it similarly positioned another product, called Limbrel, as a medical food for osteoarthritis. From 2007 to 2017, the FDA received 194 adverse event reports associated with Limbrel, including reports of drug-induced liver injury, pancreatitis, and hypersensitivity pneumonitis. In December 2017, the agency urged Primus to recall Limbrel, a move that it said was “necessary to protect the public health and welfare.” Primus withdrew the product but laid out a defense of Limbrel on a devoted website.
The FDA would not comment any further, said Ms. Schor. Ms. DeMarco said that Primus is working with the FDA to bring Limbrel back to market.
A lack of insurance coverage – even for approved medical foods for IEMs – has frustrated advocates, parents, and manufacturers. They are putting their weight behind the Medical Nutrition Equity Act, which would mandate public and private payer coverage of medical foods for IEMs and digestive conditions such as Crohn disease. That 2019 House bill has 56 cosponsors; there is no Senate companion bill.
“If you can get reimbursement, it really makes the market,” for Primus and the other manufacturers, Mr. Hyman said.
Primus Pharmaceuticals has launched its own campaign, Cover My Medical Foods, to enlist consumers and others to the cause.
Partnering with advocates
Although its low-protein breads, pastas, and baking products are not considered medical foods by the FDA, Dr. Schär is marketing them as such in the United States. They are trying to make a mark in CKD, according to Ms. Donnelly. She added that Dr. Schär has been successful in Europe, where nutrition therapy is more integrated in the health care system.
In 2019, Flavis and the National Kidney Foundation joined forces to raise awareness of nutritional interventions and to build enthusiasm for the Flavis products. The partnership has now ended, mostly because Flavis could no longer afford it, according to Ms. Donnelly.
“Information on diet and nutrition is the most requested subject matter from the NKF,” said Anthony Gucciardo, senior vice president of strategic partnerships at the foundation. The partnership “has never been necessarily about promoting their products per se; it’s promoting a healthy diet and really a diet specific for CKD.”
The NKF developed cobranded materials on low-protein foods for physicians and a teaching tool they could use with patients. Consumers could access nutrition information and a discount on Flavis products on a dedicated webpage. The foundation didn’t describe the low-protein products as medical foods, said Mr. Gucciardo, even if Flavis promoted them as such.
In patients with CKD, dietary management can help prevent the progression to end-stage renal disease. Although Medicare covers medical nutrition therapy – in which patients receive personalized assessments and dietary advice – uptake is abysmally low, according to a 2018 study.
Dr. Burdock thinks low-protein foods for CKD do meet the FDA’s criteria for a medical food but that the agency might not necessarily agree with him. The FDA would not comment.
Physician beware
When it comes to medical foods, the FDA has often looked the other way because the ingredients may already have been proven safe and the danger to an individual or to the public’s health is relatively low, according to Dr. Burdock and Mr. Hyman.
However, if the agency “feels that a medical food will prevent people from seeking medical care or there is potential to defraud the public, it is justified in taking action against the company,” said Dr. Burdock.
According to Dr. Wilson, the pharmacist who reported on the inappropriate medical food prescriptions in the California system, the FDA could help by creating a list of approved medical foods. Physicians should take time to learn about the difference between medical foods and supplements, she said, adding that they should also not hesitate to “question the veracity of the claims for them.”
Ms. Guggenheim believed doctors need to know that, for the most part, these are not FDA-approved products. She emphasized the importance of evaluating the products and looking at the data of their impact on a disease or condition.
“Many of these companies strongly believe that the products work and help people, so clinicians need to be very data driven,” she said.
A version of this article originally appeared on Medscape.com.
EULAR gives pointers on intra-articular injection best practices
New EULAR recommendations for the intra-articular (IA) treatment of arthropathies aim to facilitate uniformity and quality of care for this mainstay of rheumatologic practice, according to a report on the new guidance that was presented at the annual European Congress of Rheumatology, held online this year due to COVID-19.
Until now there were no official recommendations on how best to use it in everyday practice. “This is the first time that there’s been a joint effort to develop evidence-based recommendations,” Jacqueline Usón, MD, PhD, associate professor medicine at Rey Juan Carlos University in Madrid, said in an interview. “Everything that we are saying is pretty logical, but it’s nice to see it put in recommendations based on evidence.”
IA therapy has been around for decades and is key for treating adults with a number of different conditions where synovitis, effusion, pain, or all three, are present, such as inflammatory arthritis and osteoarthritis, Dr. Usón observed during her presentation.
“Today, commonly used injectables are not only corticosteroids but also local anesthetics, hyaluronic acid, blood products, and maybe pharmaceuticals,” she said, adding that “there is a wide variation in the way intra-articular therapies are used and delivered to patients.” Health professionals also have very different views and habits depending on geographic locations and health care systems, she observed. Ironing out the variation was one of the main objectives of the recommendations.
As one of the two conveners of the EULAR task force behind the recommendations, Dr. Usón, herself a rheumatologist at University Hospital of Móstoles, pointed out that the task force brought together a range of specialties – rheumatologists, orthopedic surgeons, radiologists, nuclear medicine specialists, among others, as well as patients – to ensure that the best advice could be given.
The task force followed EULAR standard operating procedures for developing recommendations, with discussion groups, systematic literature reviews, and Delphi technique-based consensus all being employed. The literature search considered publications from 1946 up until 2019.
“We agreed on the need for more background information from health professionals and patients, so we developed two surveys: One for health professionals with 160 items, [for which] we obtained 186 responses from 26 countries; and the patient survey was made up of 44 items, translated into 10 different languages, and we obtained 200 responses,” she said.
The results of the systematic literature review and surveys were used to help form expert consensus, leading to 5 overarching principles and 11 recommendations that look at before, during, and after intra-articular therapy.
Five overarching principles
The first overarching principle recognizes the widespread use of IA therapies and that their use is specific to the disease that is being treated and “may not be interchangeable across indications,” Dr. Usón said. The second principle concerns improving patient-centered outcomes, which are “those that are relevant to the patient,” and include the benefits, harms, preferences, or implications for self-management.
“Contextual factors are important and contribute to the effect of IAT [intra-articular treatment],” she said, discussing the third principle. “These include effective communication, patient expectations, or settings [where the procedure takes place]. In addition, one should take into account that the route of delivery has in itself a placebo effect. We found that in different RCTs [randomized controlled trials], the pooled placebo effect of IA saline is moderate to large.”
The fourth principle looks at ensuring that patients and clinicians make an informed and shared decision, which is again highlighted by the first recommendation. The fifth, and last, overarching principle acknowledges that IA injections may be given by a range of health care professionals.
Advice for before, during, and after injection
Patients need to be “fully informed of the nature of the procedure, the injectable used, and potential effects – benefits and risks – [and] informed consent should be obtained and documented,” said Dr. Usón, outlining the first recommendation. “That seems common,” she said in the interview, “but when we did the survey, we realize that many patients didn’t [give consent], and the doctors didn’t even ask for it. This is why it’s a very general statement, and it’s our first recommendation. The agreement was 99%!”
The recommendations also look at the optimal settings for performing injections, such as providing a professional and private, well-lighted room, and having a resuscitation kit nearby in case patients faint. Accuracy is important, Dr. Usón said, and imaging, such as ultrasound, should be used where available to ensure accurate injection into the joint. This is an area where further research could be performed, she said, urging young rheumatologists and health professionals to consider this. “Intra-articular therapy is something that you learn and do, but you never really investigate in it,” she said.
One recommendation states that when intra-articular injections are being given to pregnant patients, the safety of injected compound must be considered, both for the mother and for the fetus. There is another recommendation on the need to perform IA injections under aseptic conditions, and another stating that patients should be offered local anesthetics, after explaining the pros and cons.
Special populations of patients are also considered, Dr. Usón said. For example, the guidance advises warning patients with diabetes of the risk of transient glycemia after IA glucocorticoids and the need to monitor their blood glucose levels carefully for a couple of days afterward.
As a rule, “IAT is not a contraindication to people with clotting or bleeding disorders, or taking antithrombotic medications,” she said, unless they are at a high risk of bleeding.
Importantly, the recommendations cover when IAT can be performed after joint replacement surgery (after at least 3 months), and the need to “avoid overuse of injected joints” while also avoiding complete immobilization for at least 24 hours afterward. The recommendations very generally cover re-injections, but not how long intervals between injections should be. When asked about interval duration after her presentation, Dr. Usón said that the usual advice is to give IA injections no more than 2-3 times a year, but it depends on the injectable.
“It wasn’t our intention to review the efficacy and the safety of the different injectables, nor to review the use of IAT in different types of joint diseases,” she said. “We do lack a lot of information, a lot of evidence in this, and I really would hope that new rheumatologists start looking into and start investigating in this topic,” she added.
Recommendations will increase awareness of good clinical practice
“IA injections are commonly administered in the rheumatology setting. This is because [IA injection] is often a useful treatment for acute flare of arthritis, particularly when it is limited to a few joints,” observed Ai Lyn Tan, MD, associate professor and honorary consultant rheumatologist at the Leeds (England) Institute of Rheumatic and Musculoskeletal Medicine.
IA injection “also relieves symptoms relatively quickly for patients; however, the response can be variable, and there are side effects associated with IA injections,” Dr. Tan added in an interview.
There is a lack of universally accepted recommendations, Dr. Tan observed, noting that while there might be some local guidelines on how to safely perform IA injections these were often not standardized and were subject to being continually updated to try to improve the experience for patients.
“It is therefore timely to learn about the new EULAR recommendations for IA injections. The advantage of this will be to increase awareness of good clinical practice for performing IA injections.”
Dr. Tan had no relevant conflicts of interest.
SOURCE: EULAR COVID-19 Recommendations. E-congress content available until Sept. 1, 2020.
New EULAR recommendations for the intra-articular (IA) treatment of arthropathies aim to facilitate uniformity and quality of care for this mainstay of rheumatologic practice, according to a report on the new guidance that was presented at the annual European Congress of Rheumatology, held online this year due to COVID-19.
Until now there were no official recommendations on how best to use it in everyday practice. “This is the first time that there’s been a joint effort to develop evidence-based recommendations,” Jacqueline Usón, MD, PhD, associate professor medicine at Rey Juan Carlos University in Madrid, said in an interview. “Everything that we are saying is pretty logical, but it’s nice to see it put in recommendations based on evidence.”
IA therapy has been around for decades and is key for treating adults with a number of different conditions where synovitis, effusion, pain, or all three, are present, such as inflammatory arthritis and osteoarthritis, Dr. Usón observed during her presentation.
“Today, commonly used injectables are not only corticosteroids but also local anesthetics, hyaluronic acid, blood products, and maybe pharmaceuticals,” she said, adding that “there is a wide variation in the way intra-articular therapies are used and delivered to patients.” Health professionals also have very different views and habits depending on geographic locations and health care systems, she observed. Ironing out the variation was one of the main objectives of the recommendations.
As one of the two conveners of the EULAR task force behind the recommendations, Dr. Usón, herself a rheumatologist at University Hospital of Móstoles, pointed out that the task force brought together a range of specialties – rheumatologists, orthopedic surgeons, radiologists, nuclear medicine specialists, among others, as well as patients – to ensure that the best advice could be given.
The task force followed EULAR standard operating procedures for developing recommendations, with discussion groups, systematic literature reviews, and Delphi technique-based consensus all being employed. The literature search considered publications from 1946 up until 2019.
“We agreed on the need for more background information from health professionals and patients, so we developed two surveys: One for health professionals with 160 items, [for which] we obtained 186 responses from 26 countries; and the patient survey was made up of 44 items, translated into 10 different languages, and we obtained 200 responses,” she said.
The results of the systematic literature review and surveys were used to help form expert consensus, leading to 5 overarching principles and 11 recommendations that look at before, during, and after intra-articular therapy.
Five overarching principles
The first overarching principle recognizes the widespread use of IA therapies and that their use is specific to the disease that is being treated and “may not be interchangeable across indications,” Dr. Usón said. The second principle concerns improving patient-centered outcomes, which are “those that are relevant to the patient,” and include the benefits, harms, preferences, or implications for self-management.
“Contextual factors are important and contribute to the effect of IAT [intra-articular treatment],” she said, discussing the third principle. “These include effective communication, patient expectations, or settings [where the procedure takes place]. In addition, one should take into account that the route of delivery has in itself a placebo effect. We found that in different RCTs [randomized controlled trials], the pooled placebo effect of IA saline is moderate to large.”
The fourth principle looks at ensuring that patients and clinicians make an informed and shared decision, which is again highlighted by the first recommendation. The fifth, and last, overarching principle acknowledges that IA injections may be given by a range of health care professionals.
Advice for before, during, and after injection
Patients need to be “fully informed of the nature of the procedure, the injectable used, and potential effects – benefits and risks – [and] informed consent should be obtained and documented,” said Dr. Usón, outlining the first recommendation. “That seems common,” she said in the interview, “but when we did the survey, we realize that many patients didn’t [give consent], and the doctors didn’t even ask for it. This is why it’s a very general statement, and it’s our first recommendation. The agreement was 99%!”
The recommendations also look at the optimal settings for performing injections, such as providing a professional and private, well-lighted room, and having a resuscitation kit nearby in case patients faint. Accuracy is important, Dr. Usón said, and imaging, such as ultrasound, should be used where available to ensure accurate injection into the joint. This is an area where further research could be performed, she said, urging young rheumatologists and health professionals to consider this. “Intra-articular therapy is something that you learn and do, but you never really investigate in it,” she said.
One recommendation states that when intra-articular injections are being given to pregnant patients, the safety of injected compound must be considered, both for the mother and for the fetus. There is another recommendation on the need to perform IA injections under aseptic conditions, and another stating that patients should be offered local anesthetics, after explaining the pros and cons.
Special populations of patients are also considered, Dr. Usón said. For example, the guidance advises warning patients with diabetes of the risk of transient glycemia after IA glucocorticoids and the need to monitor their blood glucose levels carefully for a couple of days afterward.
As a rule, “IAT is not a contraindication to people with clotting or bleeding disorders, or taking antithrombotic medications,” she said, unless they are at a high risk of bleeding.
Importantly, the recommendations cover when IAT can be performed after joint replacement surgery (after at least 3 months), and the need to “avoid overuse of injected joints” while also avoiding complete immobilization for at least 24 hours afterward. The recommendations very generally cover re-injections, but not how long intervals between injections should be. When asked about interval duration after her presentation, Dr. Usón said that the usual advice is to give IA injections no more than 2-3 times a year, but it depends on the injectable.
“It wasn’t our intention to review the efficacy and the safety of the different injectables, nor to review the use of IAT in different types of joint diseases,” she said. “We do lack a lot of information, a lot of evidence in this, and I really would hope that new rheumatologists start looking into and start investigating in this topic,” she added.
Recommendations will increase awareness of good clinical practice
“IA injections are commonly administered in the rheumatology setting. This is because [IA injection] is often a useful treatment for acute flare of arthritis, particularly when it is limited to a few joints,” observed Ai Lyn Tan, MD, associate professor and honorary consultant rheumatologist at the Leeds (England) Institute of Rheumatic and Musculoskeletal Medicine.
IA injection “also relieves symptoms relatively quickly for patients; however, the response can be variable, and there are side effects associated with IA injections,” Dr. Tan added in an interview.
There is a lack of universally accepted recommendations, Dr. Tan observed, noting that while there might be some local guidelines on how to safely perform IA injections these were often not standardized and were subject to being continually updated to try to improve the experience for patients.
“It is therefore timely to learn about the new EULAR recommendations for IA injections. The advantage of this will be to increase awareness of good clinical practice for performing IA injections.”
Dr. Tan had no relevant conflicts of interest.
SOURCE: EULAR COVID-19 Recommendations. E-congress content available until Sept. 1, 2020.
New EULAR recommendations for the intra-articular (IA) treatment of arthropathies aim to facilitate uniformity and quality of care for this mainstay of rheumatologic practice, according to a report on the new guidance that was presented at the annual European Congress of Rheumatology, held online this year due to COVID-19.
Until now there were no official recommendations on how best to use it in everyday practice. “This is the first time that there’s been a joint effort to develop evidence-based recommendations,” Jacqueline Usón, MD, PhD, associate professor medicine at Rey Juan Carlos University in Madrid, said in an interview. “Everything that we are saying is pretty logical, but it’s nice to see it put in recommendations based on evidence.”
IA therapy has been around for decades and is key for treating adults with a number of different conditions where synovitis, effusion, pain, or all three, are present, such as inflammatory arthritis and osteoarthritis, Dr. Usón observed during her presentation.
“Today, commonly used injectables are not only corticosteroids but also local anesthetics, hyaluronic acid, blood products, and maybe pharmaceuticals,” she said, adding that “there is a wide variation in the way intra-articular therapies are used and delivered to patients.” Health professionals also have very different views and habits depending on geographic locations and health care systems, she observed. Ironing out the variation was one of the main objectives of the recommendations.
As one of the two conveners of the EULAR task force behind the recommendations, Dr. Usón, herself a rheumatologist at University Hospital of Móstoles, pointed out that the task force brought together a range of specialties – rheumatologists, orthopedic surgeons, radiologists, nuclear medicine specialists, among others, as well as patients – to ensure that the best advice could be given.
The task force followed EULAR standard operating procedures for developing recommendations, with discussion groups, systematic literature reviews, and Delphi technique-based consensus all being employed. The literature search considered publications from 1946 up until 2019.
“We agreed on the need for more background information from health professionals and patients, so we developed two surveys: One for health professionals with 160 items, [for which] we obtained 186 responses from 26 countries; and the patient survey was made up of 44 items, translated into 10 different languages, and we obtained 200 responses,” she said.
The results of the systematic literature review and surveys were used to help form expert consensus, leading to 5 overarching principles and 11 recommendations that look at before, during, and after intra-articular therapy.
Five overarching principles
The first overarching principle recognizes the widespread use of IA therapies and that their use is specific to the disease that is being treated and “may not be interchangeable across indications,” Dr. Usón said. The second principle concerns improving patient-centered outcomes, which are “those that are relevant to the patient,” and include the benefits, harms, preferences, or implications for self-management.
“Contextual factors are important and contribute to the effect of IAT [intra-articular treatment],” she said, discussing the third principle. “These include effective communication, patient expectations, or settings [where the procedure takes place]. In addition, one should take into account that the route of delivery has in itself a placebo effect. We found that in different RCTs [randomized controlled trials], the pooled placebo effect of IA saline is moderate to large.”
The fourth principle looks at ensuring that patients and clinicians make an informed and shared decision, which is again highlighted by the first recommendation. The fifth, and last, overarching principle acknowledges that IA injections may be given by a range of health care professionals.
Advice for before, during, and after injection
Patients need to be “fully informed of the nature of the procedure, the injectable used, and potential effects – benefits and risks – [and] informed consent should be obtained and documented,” said Dr. Usón, outlining the first recommendation. “That seems common,” she said in the interview, “but when we did the survey, we realize that many patients didn’t [give consent], and the doctors didn’t even ask for it. This is why it’s a very general statement, and it’s our first recommendation. The agreement was 99%!”
The recommendations also look at the optimal settings for performing injections, such as providing a professional and private, well-lighted room, and having a resuscitation kit nearby in case patients faint. Accuracy is important, Dr. Usón said, and imaging, such as ultrasound, should be used where available to ensure accurate injection into the joint. This is an area where further research could be performed, she said, urging young rheumatologists and health professionals to consider this. “Intra-articular therapy is something that you learn and do, but you never really investigate in it,” she said.
One recommendation states that when intra-articular injections are being given to pregnant patients, the safety of injected compound must be considered, both for the mother and for the fetus. There is another recommendation on the need to perform IA injections under aseptic conditions, and another stating that patients should be offered local anesthetics, after explaining the pros and cons.
Special populations of patients are also considered, Dr. Usón said. For example, the guidance advises warning patients with diabetes of the risk of transient glycemia after IA glucocorticoids and the need to monitor their blood glucose levels carefully for a couple of days afterward.
As a rule, “IAT is not a contraindication to people with clotting or bleeding disorders, or taking antithrombotic medications,” she said, unless they are at a high risk of bleeding.
Importantly, the recommendations cover when IAT can be performed after joint replacement surgery (after at least 3 months), and the need to “avoid overuse of injected joints” while also avoiding complete immobilization for at least 24 hours afterward. The recommendations very generally cover re-injections, but not how long intervals between injections should be. When asked about interval duration after her presentation, Dr. Usón said that the usual advice is to give IA injections no more than 2-3 times a year, but it depends on the injectable.
“It wasn’t our intention to review the efficacy and the safety of the different injectables, nor to review the use of IAT in different types of joint diseases,” she said. “We do lack a lot of information, a lot of evidence in this, and I really would hope that new rheumatologists start looking into and start investigating in this topic,” she added.
Recommendations will increase awareness of good clinical practice
“IA injections are commonly administered in the rheumatology setting. This is because [IA injection] is often a useful treatment for acute flare of arthritis, particularly when it is limited to a few joints,” observed Ai Lyn Tan, MD, associate professor and honorary consultant rheumatologist at the Leeds (England) Institute of Rheumatic and Musculoskeletal Medicine.
IA injection “also relieves symptoms relatively quickly for patients; however, the response can be variable, and there are side effects associated with IA injections,” Dr. Tan added in an interview.
There is a lack of universally accepted recommendations, Dr. Tan observed, noting that while there might be some local guidelines on how to safely perform IA injections these were often not standardized and were subject to being continually updated to try to improve the experience for patients.
“It is therefore timely to learn about the new EULAR recommendations for IA injections. The advantage of this will be to increase awareness of good clinical practice for performing IA injections.”
Dr. Tan had no relevant conflicts of interest.
SOURCE: EULAR COVID-19 Recommendations. E-congress content available until Sept. 1, 2020.
FROM THE EULAR 2020 E-CONGRESS
Tramadol mortality risk in osteoarthritis could outweigh benefits
Patients with OA treated with tramadol had a 20%-50% higher risk of dying during the first year of treatment than did patients who were treated with NSAIDs, according to the results of a large, population-based study performed in British Columbia.
Within 1 year of starting treatment, 296 of 13,798 patients treated with tramadol had died, compared with 246 of 13,798 treated with naproxen, giving a death rate of 21.5 versus 17.8 per 1,000 person-years, and representing a 20% increase in all-cause mortality versus the NSAID (hazard ratio, 1.2).
Similar results were seen comparing tramadol with diclofenac and tramadol with cyclooxygenase (COX)-2 inhibitors, but with increasing death rates of 24.8 versus 19.5 per 1,000 person-years (HR, 1.3) and 23.6 versus 15.7 per 1,000 person-years (HR, 1.5), respectively.
However, all-cause mortality was lower with tramadol than with the opiate painkiller, codeine (21.5 vs. 25.5 per 1,000 person-years; HR, 0.8), reported Ms. Lingyi Li, a PhD student from the University of British Columbia, Vancouver, at the annual European Congress of Rheumatology, held online this year due to COVID-19.
This is not the first time that tramadol’s excess mortality risk has been highlighted. Indeed, just last year (JAMA. 2019;321[10]:969-82), researchers using The Health Improvement Network database reported found that tramadol was associated with higher all-cause mortality than two COX-2 inhibitors, celecoxib (31.2 versus 18.4 per 1,000 person-years) and etoricoxib (25.7 versus 12.8 per 1,000 person-years).
Ms. Li and associates’ data not only now add further weight to those findings, but also go a step further by also looking at other serious risks associated with tramadol’s use among patients with OA. “The objective of this study is to compare tramadol with other commonly prescribed pain relief medications on the risk of several severe outcomes, including mortality, cardiovascular diseases [CVD], venous thromboembolism [VTE], and hip fracture,” Ms. Li said during her virtual presentation.
Using sequential propensity score matching, the researchers compared data on patients in British Columbia during 2005-2014 with a first prescription of tramadol (56,325), the NSAIDs naproxen (n = 13,798) or diclofenac (n = 17,675), COX-2 inhibitors (17,039), or codeine (n = 7,813).
“For CVD, we found that there is a higher risk among tramadol users, compared with diclofenac [HR, 1.2] and COX-2 inhibitors [HR, 1.2], but not with naproxen [HR, 1.0] and codeine [HR, 0.9] users,” Ms. Li reported.
Similarly, the 1-year risk of VTE was significantly higher among tramadol users only when compared with diclofenac (HR, 1.5) and COX-2 inhibitors (HR, 1.7).
“For hip fractures, tramadol initiation was associated with an increased risk of hip fractures, compared with all NSAIDs, but not with codeine,” Ms. Li said. The risk of hip fractures was 40%-50% higher with tramadol versus naproxen (HR, 1.4), diclofenac and COX-2 inhibitors (both HR, 1.5).
“Our results suggest an unfavorable safety profile of tramadol use,” Ms. Li said, suggesting that “several guidelines on tramadol use in clinical practice might need to be revisited.”
According to a recent Cochrane review there is “moderate-quality evidence” that tramadol “has no important benefit on mean pain or function in people with osteoarthritis.” The authors of the review wrote that, while some patients might glean a benefit from treatment, the evidence suggests that “adverse events probably cause substantially more participants to stop taking tramadol.”
Current guidance on the use of tramadol varies. The American Academy of Orthopaedic Surgeons guidelines recommend its use in patients with symptomatic knee OA on a par with NSAIDs while the American College of Rheumatology guidance (Arthritis Care Res. 2020;72[2]:149-62) conditionally recommends that it be used only if there is no real alternative, such as a contraindication to NSAIDs or pain relief is ineffective.
Patients with rheumatic disease are increasingly taking opioid painkillers such as tramadol, with other data reported at the EULAR 2020 E-Congress showing a rise from 15% in 2007 to 25% in 2016 in the Catalonia region of Spain alone. A rise from 5% to 10% has previously been reported in the United States from 2003 to 2009.
With increasing rates of tramadol prescribing, the worry is that perhaps tramadol is not as safe a people think it is, as Thomas Schwenk, MD, pointed out when he reviewed the previous research showing excess mortality with tramadol (NEJM Journal Watch, March 2019).
“The opioid agonist tramadol often is prescribed for patients with osteoarthritis pain because it is thought to be safer than opioids or nonsteroidal anti-inflammatory drugs,” he observed. Dr. Schwenk, who is dean of the University of Nevada, Reno, added that the “results [of that study] suggest that tramadol is not as safe as some people believe.”
He suggested cautious prescribing: “Tramadol might be an option for patients in whom NSAIDs are contraindicated, but it should be prescribed as judiciously as traditional opioids.”
Responsible prescribing to avoid opioid misuse in patients with rheumatic diseases was also advocated in a EULAR press release from the congress. A study from Iceland was highlighted that found patients with inflammatory arthritis frequently did not stop taking opioids after the source of their pain had gone; in fact, their use went up despite being treated with tumor necrosis factor inhibitors.
“We would like to raise awareness of a responsible approach both by the prescribers and also the patients,” said John Isaacs, PhD, of the University of Newcastle (England). “In order to alleviate chronic pain, medications should in any case only be part of a comprehensive therapy program, in which doctors, psychologists, and physiotherapists work together.”
The study authors had no conflicts of interest.
SOURCE: Li L et al. Ann Rheum Dis. 2020;79[suppl 1]:118, Abstract OP0191.
Patients with OA treated with tramadol had a 20%-50% higher risk of dying during the first year of treatment than did patients who were treated with NSAIDs, according to the results of a large, population-based study performed in British Columbia.
Within 1 year of starting treatment, 296 of 13,798 patients treated with tramadol had died, compared with 246 of 13,798 treated with naproxen, giving a death rate of 21.5 versus 17.8 per 1,000 person-years, and representing a 20% increase in all-cause mortality versus the NSAID (hazard ratio, 1.2).
Similar results were seen comparing tramadol with diclofenac and tramadol with cyclooxygenase (COX)-2 inhibitors, but with increasing death rates of 24.8 versus 19.5 per 1,000 person-years (HR, 1.3) and 23.6 versus 15.7 per 1,000 person-years (HR, 1.5), respectively.
However, all-cause mortality was lower with tramadol than with the opiate painkiller, codeine (21.5 vs. 25.5 per 1,000 person-years; HR, 0.8), reported Ms. Lingyi Li, a PhD student from the University of British Columbia, Vancouver, at the annual European Congress of Rheumatology, held online this year due to COVID-19.
This is not the first time that tramadol’s excess mortality risk has been highlighted. Indeed, just last year (JAMA. 2019;321[10]:969-82), researchers using The Health Improvement Network database reported found that tramadol was associated with higher all-cause mortality than two COX-2 inhibitors, celecoxib (31.2 versus 18.4 per 1,000 person-years) and etoricoxib (25.7 versus 12.8 per 1,000 person-years).
Ms. Li and associates’ data not only now add further weight to those findings, but also go a step further by also looking at other serious risks associated with tramadol’s use among patients with OA. “The objective of this study is to compare tramadol with other commonly prescribed pain relief medications on the risk of several severe outcomes, including mortality, cardiovascular diseases [CVD], venous thromboembolism [VTE], and hip fracture,” Ms. Li said during her virtual presentation.
Using sequential propensity score matching, the researchers compared data on patients in British Columbia during 2005-2014 with a first prescription of tramadol (56,325), the NSAIDs naproxen (n = 13,798) or diclofenac (n = 17,675), COX-2 inhibitors (17,039), or codeine (n = 7,813).
“For CVD, we found that there is a higher risk among tramadol users, compared with diclofenac [HR, 1.2] and COX-2 inhibitors [HR, 1.2], but not with naproxen [HR, 1.0] and codeine [HR, 0.9] users,” Ms. Li reported.
Similarly, the 1-year risk of VTE was significantly higher among tramadol users only when compared with diclofenac (HR, 1.5) and COX-2 inhibitors (HR, 1.7).
“For hip fractures, tramadol initiation was associated with an increased risk of hip fractures, compared with all NSAIDs, but not with codeine,” Ms. Li said. The risk of hip fractures was 40%-50% higher with tramadol versus naproxen (HR, 1.4), diclofenac and COX-2 inhibitors (both HR, 1.5).
“Our results suggest an unfavorable safety profile of tramadol use,” Ms. Li said, suggesting that “several guidelines on tramadol use in clinical practice might need to be revisited.”
According to a recent Cochrane review there is “moderate-quality evidence” that tramadol “has no important benefit on mean pain or function in people with osteoarthritis.” The authors of the review wrote that, while some patients might glean a benefit from treatment, the evidence suggests that “adverse events probably cause substantially more participants to stop taking tramadol.”
Current guidance on the use of tramadol varies. The American Academy of Orthopaedic Surgeons guidelines recommend its use in patients with symptomatic knee OA on a par with NSAIDs while the American College of Rheumatology guidance (Arthritis Care Res. 2020;72[2]:149-62) conditionally recommends that it be used only if there is no real alternative, such as a contraindication to NSAIDs or pain relief is ineffective.
Patients with rheumatic disease are increasingly taking opioid painkillers such as tramadol, with other data reported at the EULAR 2020 E-Congress showing a rise from 15% in 2007 to 25% in 2016 in the Catalonia region of Spain alone. A rise from 5% to 10% has previously been reported in the United States from 2003 to 2009.
With increasing rates of tramadol prescribing, the worry is that perhaps tramadol is not as safe a people think it is, as Thomas Schwenk, MD, pointed out when he reviewed the previous research showing excess mortality with tramadol (NEJM Journal Watch, March 2019).
“The opioid agonist tramadol often is prescribed for patients with osteoarthritis pain because it is thought to be safer than opioids or nonsteroidal anti-inflammatory drugs,” he observed. Dr. Schwenk, who is dean of the University of Nevada, Reno, added that the “results [of that study] suggest that tramadol is not as safe as some people believe.”
He suggested cautious prescribing: “Tramadol might be an option for patients in whom NSAIDs are contraindicated, but it should be prescribed as judiciously as traditional opioids.”
Responsible prescribing to avoid opioid misuse in patients with rheumatic diseases was also advocated in a EULAR press release from the congress. A study from Iceland was highlighted that found patients with inflammatory arthritis frequently did not stop taking opioids after the source of their pain had gone; in fact, their use went up despite being treated with tumor necrosis factor inhibitors.
“We would like to raise awareness of a responsible approach both by the prescribers and also the patients,” said John Isaacs, PhD, of the University of Newcastle (England). “In order to alleviate chronic pain, medications should in any case only be part of a comprehensive therapy program, in which doctors, psychologists, and physiotherapists work together.”
The study authors had no conflicts of interest.
SOURCE: Li L et al. Ann Rheum Dis. 2020;79[suppl 1]:118, Abstract OP0191.
Patients with OA treated with tramadol had a 20%-50% higher risk of dying during the first year of treatment than did patients who were treated with NSAIDs, according to the results of a large, population-based study performed in British Columbia.
Within 1 year of starting treatment, 296 of 13,798 patients treated with tramadol had died, compared with 246 of 13,798 treated with naproxen, giving a death rate of 21.5 versus 17.8 per 1,000 person-years, and representing a 20% increase in all-cause mortality versus the NSAID (hazard ratio, 1.2).
Similar results were seen comparing tramadol with diclofenac and tramadol with cyclooxygenase (COX)-2 inhibitors, but with increasing death rates of 24.8 versus 19.5 per 1,000 person-years (HR, 1.3) and 23.6 versus 15.7 per 1,000 person-years (HR, 1.5), respectively.
However, all-cause mortality was lower with tramadol than with the opiate painkiller, codeine (21.5 vs. 25.5 per 1,000 person-years; HR, 0.8), reported Ms. Lingyi Li, a PhD student from the University of British Columbia, Vancouver, at the annual European Congress of Rheumatology, held online this year due to COVID-19.
This is not the first time that tramadol’s excess mortality risk has been highlighted. Indeed, just last year (JAMA. 2019;321[10]:969-82), researchers using The Health Improvement Network database reported found that tramadol was associated with higher all-cause mortality than two COX-2 inhibitors, celecoxib (31.2 versus 18.4 per 1,000 person-years) and etoricoxib (25.7 versus 12.8 per 1,000 person-years).
Ms. Li and associates’ data not only now add further weight to those findings, but also go a step further by also looking at other serious risks associated with tramadol’s use among patients with OA. “The objective of this study is to compare tramadol with other commonly prescribed pain relief medications on the risk of several severe outcomes, including mortality, cardiovascular diseases [CVD], venous thromboembolism [VTE], and hip fracture,” Ms. Li said during her virtual presentation.
Using sequential propensity score matching, the researchers compared data on patients in British Columbia during 2005-2014 with a first prescription of tramadol (56,325), the NSAIDs naproxen (n = 13,798) or diclofenac (n = 17,675), COX-2 inhibitors (17,039), or codeine (n = 7,813).
“For CVD, we found that there is a higher risk among tramadol users, compared with diclofenac [HR, 1.2] and COX-2 inhibitors [HR, 1.2], but not with naproxen [HR, 1.0] and codeine [HR, 0.9] users,” Ms. Li reported.
Similarly, the 1-year risk of VTE was significantly higher among tramadol users only when compared with diclofenac (HR, 1.5) and COX-2 inhibitors (HR, 1.7).
“For hip fractures, tramadol initiation was associated with an increased risk of hip fractures, compared with all NSAIDs, but not with codeine,” Ms. Li said. The risk of hip fractures was 40%-50% higher with tramadol versus naproxen (HR, 1.4), diclofenac and COX-2 inhibitors (both HR, 1.5).
“Our results suggest an unfavorable safety profile of tramadol use,” Ms. Li said, suggesting that “several guidelines on tramadol use in clinical practice might need to be revisited.”
According to a recent Cochrane review there is “moderate-quality evidence” that tramadol “has no important benefit on mean pain or function in people with osteoarthritis.” The authors of the review wrote that, while some patients might glean a benefit from treatment, the evidence suggests that “adverse events probably cause substantially more participants to stop taking tramadol.”
Current guidance on the use of tramadol varies. The American Academy of Orthopaedic Surgeons guidelines recommend its use in patients with symptomatic knee OA on a par with NSAIDs while the American College of Rheumatology guidance (Arthritis Care Res. 2020;72[2]:149-62) conditionally recommends that it be used only if there is no real alternative, such as a contraindication to NSAIDs or pain relief is ineffective.
Patients with rheumatic disease are increasingly taking opioid painkillers such as tramadol, with other data reported at the EULAR 2020 E-Congress showing a rise from 15% in 2007 to 25% in 2016 in the Catalonia region of Spain alone. A rise from 5% to 10% has previously been reported in the United States from 2003 to 2009.
With increasing rates of tramadol prescribing, the worry is that perhaps tramadol is not as safe a people think it is, as Thomas Schwenk, MD, pointed out when he reviewed the previous research showing excess mortality with tramadol (NEJM Journal Watch, March 2019).
“The opioid agonist tramadol often is prescribed for patients with osteoarthritis pain because it is thought to be safer than opioids or nonsteroidal anti-inflammatory drugs,” he observed. Dr. Schwenk, who is dean of the University of Nevada, Reno, added that the “results [of that study] suggest that tramadol is not as safe as some people believe.”
He suggested cautious prescribing: “Tramadol might be an option for patients in whom NSAIDs are contraindicated, but it should be prescribed as judiciously as traditional opioids.”
Responsible prescribing to avoid opioid misuse in patients with rheumatic diseases was also advocated in a EULAR press release from the congress. A study from Iceland was highlighted that found patients with inflammatory arthritis frequently did not stop taking opioids after the source of their pain had gone; in fact, their use went up despite being treated with tumor necrosis factor inhibitors.
“We would like to raise awareness of a responsible approach both by the prescribers and also the patients,” said John Isaacs, PhD, of the University of Newcastle (England). “In order to alleviate chronic pain, medications should in any case only be part of a comprehensive therapy program, in which doctors, psychologists, and physiotherapists work together.”
The study authors had no conflicts of interest.
SOURCE: Li L et al. Ann Rheum Dis. 2020;79[suppl 1]:118, Abstract OP0191.
FROM EULAR 2020 E-CONGRESS