Cancer

SAN ANTONIO – A small study suggests the frequent use of antibiotics among women with triple-negative breast cancer, may have an impact on overall and breast cancer–specific mortality.

The study was recently presented at the San Antonio Breast Cancer Symposium by Julia D. Ransohoff, MD, of Stanford (Calif.) University.

Gut-associated lymphoid tissues are the largest component of the immune system. They influence both local and systemic immune responses, but the use of antimicrobials can decrease circulating and tumor-infiltrating lymphocytes that effect the immune repertoire and in turn, the survival of women with triple-negative breast cancer.

Dr. Ransohoff and colleagues hypothesized that increasing antimicrobial exposure in the presence of time-varying absolute lymphocyte counts may lead to higher overall and breast cancer–specific mortality. Their analysis is based on data from the population-based Surveillance, Epidemiology, and End Results registry and electronic medical records from Stanford University and Sutter Health. It included 772 women who were treated for triple-negative breast cancer between 2000 and 2014. The women were followed for an average of 104 months.

In an earlier analysis of this same group, Dr. Ransohoff found that higher minimum absolute lymphocyte counts were associated with lower overall mortality (hazard ratio, 0.23; 95% confidence interval, 0.16-0.35) and breast cancer mortality (HR, 0.19; 95% CI, 0.11-0.34) The association between higher peripheral lymphocyte counts and tumor-infiltrating lymphocytes was significant.

In the analysis of relationships between antibiotic use and mortality, 85% of women (n = 654) were prescribed antibiotics after having been diagnosed with triple-negative breast cancer. The death rate among patients who were prescribed antibiotics was 23% (153/654), compared with 20% (24/118) among the patients who were not treated with antibiotics (which accounts for 15% of the entire group).

For total antibiotic exposure, the HR for overall mortality was 1.06 (95% CI, 1.03-1.09; P < .001) and 1.07 for breast cancer–specific mortality (95% CI, 1.04-1.10; P < .001). For unique antibiotic exposure (not counting repeat prescriptions of the same antibiotic), the HR for overall mortality was 1.17 (95% CI, 1.12-1.22; P < .001) and 1.18 for breast cancer–specific mortality (95% CI, 1.12-1.24; P < .001). 

“These were all statistically significant associations derived from a statistical model that takes into account baseline patient characteristics, so the reported hazard ratios, to the best of our ability, represent the risk of death associated with antibiotic use adjusted for other baseline covariates. We’ve attempted to account for differences at baseline that may indicate patients are sicker, and so the reported risk represents mortality related with antibiotic exposure,” Dr. Ransohoff said.

Elucidating the role of the microbiome in mediating absolute lymphocyte counts and immune response may inform interventions to reduce triple-negative mortality, she said.

SAN ANTONIO – A small study suggests the frequent use of antibiotics among women with triple-negative breast cancer, may have an impact on overall and breast cancer–specific mortality.

The study was recently presented at the San Antonio Breast Cancer Symposium by Julia D. Ransohoff, MD, of Stanford (Calif.) University.

Gut-associated lymphoid tissues are the largest component of the immune system. They influence both local and systemic immune responses, but the use of antimicrobials can decrease circulating and tumor-infiltrating lymphocytes that effect the immune repertoire and in turn, the survival of women with triple-negative breast cancer.

Dr. Ransohoff and colleagues hypothesized that increasing antimicrobial exposure in the presence of time-varying absolute lymphocyte counts may lead to higher overall and breast cancer–specific mortality. Their analysis is based on data from the population-based Surveillance, Epidemiology, and End Results registry and electronic medical records from Stanford University and Sutter Health. It included 772 women who were treated for triple-negative breast cancer between 2000 and 2014. The women were followed for an average of 104 months.

In an earlier analysis of this same group, Dr. Ransohoff found that higher minimum absolute lymphocyte counts were associated with lower overall mortality (hazard ratio, 0.23; 95% confidence interval, 0.16-0.35) and breast cancer mortality (HR, 0.19; 95% CI, 0.11-0.34) The association between higher peripheral lymphocyte counts and tumor-infiltrating lymphocytes was significant.

In the analysis of relationships between antibiotic use and mortality, 85% of women (n = 654) were prescribed antibiotics after having been diagnosed with triple-negative breast cancer. The death rate among patients who were prescribed antibiotics was 23% (153/654), compared with 20% (24/118) among the patients who were not treated with antibiotics (which accounts for 15% of the entire group).

For total antibiotic exposure, the HR for overall mortality was 1.06 (95% CI, 1.03-1.09; P < .001) and 1.07 for breast cancer–specific mortality (95% CI, 1.04-1.10; P < .001). For unique antibiotic exposure (not counting repeat prescriptions of the same antibiotic), the HR for overall mortality was 1.17 (95% CI, 1.12-1.22; P < .001) and 1.18 for breast cancer–specific mortality (95% CI, 1.12-1.24; P < .001). 

“These were all statistically significant associations derived from a statistical model that takes into account baseline patient characteristics, so the reported hazard ratios, to the best of our ability, represent the risk of death associated with antibiotic use adjusted for other baseline covariates. We’ve attempted to account for differences at baseline that may indicate patients are sicker, and so the reported risk represents mortality related with antibiotic exposure,” Dr. Ransohoff said.

Elucidating the role of the microbiome in mediating absolute lymphocyte counts and immune response may inform interventions to reduce triple-negative mortality, she said.

SAN ANTONIO – A small study suggests the frequent use of antibiotics among women with triple-negative breast cancer, may have an impact on overall and breast cancer–specific mortality.

The study was recently presented at the San Antonio Breast Cancer Symposium by Julia D. Ransohoff, MD, of Stanford (Calif.) University.

Gut-associated lymphoid tissues are the largest component of the immune system. They influence both local and systemic immune responses, but the use of antimicrobials can decrease circulating and tumor-infiltrating lymphocytes that effect the immune repertoire and in turn, the survival of women with triple-negative breast cancer.

Dr. Ransohoff and colleagues hypothesized that increasing antimicrobial exposure in the presence of time-varying absolute lymphocyte counts may lead to higher overall and breast cancer–specific mortality. Their analysis is based on data from the population-based Surveillance, Epidemiology, and End Results registry and electronic medical records from Stanford University and Sutter Health. It included 772 women who were treated for triple-negative breast cancer between 2000 and 2014. The women were followed for an average of 104 months.

In an earlier analysis of this same group, Dr. Ransohoff found that higher minimum absolute lymphocyte counts were associated with lower overall mortality (hazard ratio, 0.23; 95% confidence interval, 0.16-0.35) and breast cancer mortality (HR, 0.19; 95% CI, 0.11-0.34) The association between higher peripheral lymphocyte counts and tumor-infiltrating lymphocytes was significant.

In the analysis of relationships between antibiotic use and mortality, 85% of women (n = 654) were prescribed antibiotics after having been diagnosed with triple-negative breast cancer. The death rate among patients who were prescribed antibiotics was 23% (153/654), compared with 20% (24/118) among the patients who were not treated with antibiotics (which accounts for 15% of the entire group).

For total antibiotic exposure, the HR for overall mortality was 1.06 (95% CI, 1.03-1.09; P < .001) and 1.07 for breast cancer–specific mortality (95% CI, 1.04-1.10; P < .001). For unique antibiotic exposure (not counting repeat prescriptions of the same antibiotic), the HR for overall mortality was 1.17 (95% CI, 1.12-1.22; P < .001) and 1.18 for breast cancer–specific mortality (95% CI, 1.12-1.24; P < .001). 

“These were all statistically significant associations derived from a statistical model that takes into account baseline patient characteristics, so the reported hazard ratios, to the best of our ability, represent the risk of death associated with antibiotic use adjusted for other baseline covariates. We’ve attempted to account for differences at baseline that may indicate patients are sicker, and so the reported risk represents mortality related with antibiotic exposure,” Dr. Ransohoff said.

Elucidating the role of the microbiome in mediating absolute lymphocyte counts and immune response may inform interventions to reduce triple-negative mortality, she said.

SAN ANTONIO – Sedative-hypnotic medications, such as benzodiazepines and nonbenzodiazepine sedative-hypnotics commonly used to treat chemotherapy-related nausea, anxiety, and insomnia in women being treated for breast cancer, put women at high risk of dependency after chemotherapy treatment, shows a new study.

While benzodiazepines and nonbenzodiazepine sedative-hypnotics are effective for these indications, misuse and increased health care utilization can ensue from their prolonged use, said Jacob C. Cogan, MD, a fellow in oncology/hematology at the Herbert Irving Comprehensive Cancer Center, Columbia University, New York. Dr. Cogan recently presented the results of the study at the San Antonio Breast Cancer Symposium.

The study included patients with breast cancer who received adjuvant chemotherapy between 2008 and 2017. Prescriptions for sedatives were divided into three periods: 365 days prior to chemotherapy to the start of chemotherapy (period one); start of chemotherapy to 90 days after the end of chemotherapy (period two); and 90-365 days after chemotherapy (period three). Patients who filled at least one benzodiazepine prescription in period two and patients who filled at least two benzodiazepine in period three were classified as new persistent benzodiazepine users. The same definitions were then used for nonbenzodiazepine sedative-hypnotics.

Among 17,532 benzodiazepine-naive patients (mean age, 57 years) and 21,863 nonbenzodiazepine sedative-hypnotic drug–naive patients (mean age, 56 years) who received adjuvant chemotherapy for breast cancer, lumpectomies were performed for a small majority (56.6% benzodiazepine naive, 55.1% nonbenzodiazepine sedative-hypnotics naive) versus mastectomy, and about half of patients received less than 4 months of chemotherapy (48.0% benzodiazepine naive, 48.6% nonbenzodiazepine sedative-hypnotics naive). Among benzodiazepine-naive patients, 4,447 (25.4%) filled at least one benzodiazepine prescription during chemotherapy, and 2,160 (9.9%) filled at least one nonbenzodiazepine sedative-hypnotic prescription during chemotherapy. The rate of new persistent benzodiazepine use after initial exposure during chemotherapy was 26.8% (n = 1,192). Similarly, 33.8% (n = 730) of nonbenzodiazepine sedative-hypnotics users became new persistent users. In addition, 115 patients became new persistent users of both types of sedative-hypnotics.

New persistent benzodiazepine use was associated with several characteristics: age 50-65 (odds ratio, 1.23; P = .01) and age greater than 65 (OR, 1.38, P = .005) relative to age less than 49; as well as Medicaid insurance, relative to commercial and Medicare insurance (OR, 1.68; P < .0001). Both new persistent benzodiazepine and nonbenzodiazepine sedative-hypnotics use was associated with chemotherapy duration of less than 4 months relative to 4 or more months of chemotherapy (OR, 1.17; P = .03 for benzodiazepines; OR, 1.58; P < .0001 for nonbenzodiazepine sedative-hypnotics).

It is not clear why shorter chemotherapy duration is associated with more new persistent use, Dr. Cogan said. “It may be that, paradoxically, a shorter duration of treatment could lead to more anxiety about recurrence. These patients may need closer monitoring of mental health symptoms and earlier referral for psychological services.”

Dr. Cogan said that providers should take steps to ensure that benzodiazepines and nonbenzodiazepine sedatives are used appropriately, which includes tapering dosages and, when appropriate, encouraging nonpharmacologic strategies.

There were no funding or other conflicts of interest associated with this study.

SAN ANTONIO – Sedative-hypnotic medications, such as benzodiazepines and nonbenzodiazepine sedative-hypnotics commonly used to treat chemotherapy-related nausea, anxiety, and insomnia in women being treated for breast cancer, put women at high risk of dependency after chemotherapy treatment, shows a new study.

While benzodiazepines and nonbenzodiazepine sedative-hypnotics are effective for these indications, misuse and increased health care utilization can ensue from their prolonged use, said Jacob C. Cogan, MD, a fellow in oncology/hematology at the Herbert Irving Comprehensive Cancer Center, Columbia University, New York. Dr. Cogan recently presented the results of the study at the San Antonio Breast Cancer Symposium.

The study included patients with breast cancer who received adjuvant chemotherapy between 2008 and 2017. Prescriptions for sedatives were divided into three periods: 365 days prior to chemotherapy to the start of chemotherapy (period one); start of chemotherapy to 90 days after the end of chemotherapy (period two); and 90-365 days after chemotherapy (period three). Patients who filled at least one benzodiazepine prescription in period two and patients who filled at least two benzodiazepine in period three were classified as new persistent benzodiazepine users. The same definitions were then used for nonbenzodiazepine sedative-hypnotics.

Among 17,532 benzodiazepine-naive patients (mean age, 57 years) and 21,863 nonbenzodiazepine sedative-hypnotic drug–naive patients (mean age, 56 years) who received adjuvant chemotherapy for breast cancer, lumpectomies were performed for a small majority (56.6% benzodiazepine naive, 55.1% nonbenzodiazepine sedative-hypnotics naive) versus mastectomy, and about half of patients received less than 4 months of chemotherapy (48.0% benzodiazepine naive, 48.6% nonbenzodiazepine sedative-hypnotics naive). Among benzodiazepine-naive patients, 4,447 (25.4%) filled at least one benzodiazepine prescription during chemotherapy, and 2,160 (9.9%) filled at least one nonbenzodiazepine sedative-hypnotic prescription during chemotherapy. The rate of new persistent benzodiazepine use after initial exposure during chemotherapy was 26.8% (n = 1,192). Similarly, 33.8% (n = 730) of nonbenzodiazepine sedative-hypnotics users became new persistent users. In addition, 115 patients became new persistent users of both types of sedative-hypnotics.

New persistent benzodiazepine use was associated with several characteristics: age 50-65 (odds ratio, 1.23; P = .01) and age greater than 65 (OR, 1.38, P = .005) relative to age less than 49; as well as Medicaid insurance, relative to commercial and Medicare insurance (OR, 1.68; P < .0001). Both new persistent benzodiazepine and nonbenzodiazepine sedative-hypnotics use was associated with chemotherapy duration of less than 4 months relative to 4 or more months of chemotherapy (OR, 1.17; P = .03 for benzodiazepines; OR, 1.58; P < .0001 for nonbenzodiazepine sedative-hypnotics).

It is not clear why shorter chemotherapy duration is associated with more new persistent use, Dr. Cogan said. “It may be that, paradoxically, a shorter duration of treatment could lead to more anxiety about recurrence. These patients may need closer monitoring of mental health symptoms and earlier referral for psychological services.”

Dr. Cogan said that providers should take steps to ensure that benzodiazepines and nonbenzodiazepine sedatives are used appropriately, which includes tapering dosages and, when appropriate, encouraging nonpharmacologic strategies.

There were no funding or other conflicts of interest associated with this study.

SAN ANTONIO – Sedative-hypnotic medications, such as benzodiazepines and nonbenzodiazepine sedative-hypnotics commonly used to treat chemotherapy-related nausea, anxiety, and insomnia in women being treated for breast cancer, put women at high risk of dependency after chemotherapy treatment, shows a new study.

While benzodiazepines and nonbenzodiazepine sedative-hypnotics are effective for these indications, misuse and increased health care utilization can ensue from their prolonged use, said Jacob C. Cogan, MD, a fellow in oncology/hematology at the Herbert Irving Comprehensive Cancer Center, Columbia University, New York. Dr. Cogan recently presented the results of the study at the San Antonio Breast Cancer Symposium.

The study included patients with breast cancer who received adjuvant chemotherapy between 2008 and 2017. Prescriptions for sedatives were divided into three periods: 365 days prior to chemotherapy to the start of chemotherapy (period one); start of chemotherapy to 90 days after the end of chemotherapy (period two); and 90-365 days after chemotherapy (period three). Patients who filled at least one benzodiazepine prescription in period two and patients who filled at least two benzodiazepine in period three were classified as new persistent benzodiazepine users. The same definitions were then used for nonbenzodiazepine sedative-hypnotics.

Among 17,532 benzodiazepine-naive patients (mean age, 57 years) and 21,863 nonbenzodiazepine sedative-hypnotic drug–naive patients (mean age, 56 years) who received adjuvant chemotherapy for breast cancer, lumpectomies were performed for a small majority (56.6% benzodiazepine naive, 55.1% nonbenzodiazepine sedative-hypnotics naive) versus mastectomy, and about half of patients received less than 4 months of chemotherapy (48.0% benzodiazepine naive, 48.6% nonbenzodiazepine sedative-hypnotics naive). Among benzodiazepine-naive patients, 4,447 (25.4%) filled at least one benzodiazepine prescription during chemotherapy, and 2,160 (9.9%) filled at least one nonbenzodiazepine sedative-hypnotic prescription during chemotherapy. The rate of new persistent benzodiazepine use after initial exposure during chemotherapy was 26.8% (n = 1,192). Similarly, 33.8% (n = 730) of nonbenzodiazepine sedative-hypnotics users became new persistent users. In addition, 115 patients became new persistent users of both types of sedative-hypnotics.

New persistent benzodiazepine use was associated with several characteristics: age 50-65 (odds ratio, 1.23; P = .01) and age greater than 65 (OR, 1.38, P = .005) relative to age less than 49; as well as Medicaid insurance, relative to commercial and Medicare insurance (OR, 1.68; P < .0001). Both new persistent benzodiazepine and nonbenzodiazepine sedative-hypnotics use was associated with chemotherapy duration of less than 4 months relative to 4 or more months of chemotherapy (OR, 1.17; P = .03 for benzodiazepines; OR, 1.58; P < .0001 for nonbenzodiazepine sedative-hypnotics).

It is not clear why shorter chemotherapy duration is associated with more new persistent use, Dr. Cogan said. “It may be that, paradoxically, a shorter duration of treatment could lead to more anxiety about recurrence. These patients may need closer monitoring of mental health symptoms and earlier referral for psychological services.”

Dr. Cogan said that providers should take steps to ensure that benzodiazepines and nonbenzodiazepine sedatives are used appropriately, which includes tapering dosages and, when appropriate, encouraging nonpharmacologic strategies.

There were no funding or other conflicts of interest associated with this study.

The Food and Drug Administration has approved pembrolizumab (Keytruda) for the adjuvant treatment of stage IIB and IIC melanoma after complete resection in adults and children over age 12 years. The FDA also extended the approval to those with stage III disease.

The FDA approval on Dec. 3 was based on first interim findings from the randomized, placebo-controlled KEYNOTE-716 trial, which evaluated patients with stage IIB and IIC disease. 

Since the anti-PD-1 therapy was approved in metastatic melanoma 7 years ago, “we have built on this foundation in melanoma and have expanded the use of KEYTRUDA into earlier stages of this disease,” said Scot Ebbinghaus, MD, vice president, clinical research, Merck Research Laboratories, in a press release. “With today’s approval, we can now offer health care providers and patients 12 years and older the opportunity to help prevent melanoma recurrence with Keytruda across resected stage IIB, stage IIC, and stage III melanoma.”

In KEYNOTE-716, patients with completely resected stage IIB or IIC melanoma were randomly assigned to receive 200 mg of intravenous pembrolizumab, the pediatric dose 2 mg/kg (up to a maximum of 200 mg) every 3 weeks, or placebo for up to 1 year until disease recurrence or unacceptable toxicity.

After a median follow-up of 14.4 months, investigators reported a statistically significant 35% improvement in recurrence-free survival (RFS) in those treated with pembrolizumab, compared with those who received placebo (hazard ratio, 0.65).

The most common adverse reactions reported in patients receiving pembrolizumab in KEYNOTE-716 were fatigue, diarrhea, pruritus, and arthralgia, each occurring in at least 20% of patients.

“Early identification and management of immune-mediated adverse reactions are essential to ensure safe use of Keytruda,” according to Merck.

A version of this article first appeared on Medscape.com.

The Food and Drug Administration has approved pembrolizumab (Keytruda) for the adjuvant treatment of stage IIB and IIC melanoma after complete resection in adults and children over age 12 years. The FDA also extended the approval to those with stage III disease.

The FDA approval on Dec. 3 was based on first interim findings from the randomized, placebo-controlled KEYNOTE-716 trial, which evaluated patients with stage IIB and IIC disease. 

Since the anti-PD-1 therapy was approved in metastatic melanoma 7 years ago, “we have built on this foundation in melanoma and have expanded the use of KEYTRUDA into earlier stages of this disease,” said Scot Ebbinghaus, MD, vice president, clinical research, Merck Research Laboratories, in a press release. “With today’s approval, we can now offer health care providers and patients 12 years and older the opportunity to help prevent melanoma recurrence with Keytruda across resected stage IIB, stage IIC, and stage III melanoma.”

In KEYNOTE-716, patients with completely resected stage IIB or IIC melanoma were randomly assigned to receive 200 mg of intravenous pembrolizumab, the pediatric dose 2 mg/kg (up to a maximum of 200 mg) every 3 weeks, or placebo for up to 1 year until disease recurrence or unacceptable toxicity.

After a median follow-up of 14.4 months, investigators reported a statistically significant 35% improvement in recurrence-free survival (RFS) in those treated with pembrolizumab, compared with those who received placebo (hazard ratio, 0.65).

The most common adverse reactions reported in patients receiving pembrolizumab in KEYNOTE-716 were fatigue, diarrhea, pruritus, and arthralgia, each occurring in at least 20% of patients.

“Early identification and management of immune-mediated adverse reactions are essential to ensure safe use of Keytruda,” according to Merck.

A version of this article first appeared on Medscape.com.

The Food and Drug Administration has approved pembrolizumab (Keytruda) for the adjuvant treatment of stage IIB and IIC melanoma after complete resection in adults and children over age 12 years. The FDA also extended the approval to those with stage III disease.

The FDA approval on Dec. 3 was based on first interim findings from the randomized, placebo-controlled KEYNOTE-716 trial, which evaluated patients with stage IIB and IIC disease. 

Since the anti-PD-1 therapy was approved in metastatic melanoma 7 years ago, “we have built on this foundation in melanoma and have expanded the use of KEYTRUDA into earlier stages of this disease,” said Scot Ebbinghaus, MD, vice president, clinical research, Merck Research Laboratories, in a press release. “With today’s approval, we can now offer health care providers and patients 12 years and older the opportunity to help prevent melanoma recurrence with Keytruda across resected stage IIB, stage IIC, and stage III melanoma.”

In KEYNOTE-716, patients with completely resected stage IIB or IIC melanoma were randomly assigned to receive 200 mg of intravenous pembrolizumab, the pediatric dose 2 mg/kg (up to a maximum of 200 mg) every 3 weeks, or placebo for up to 1 year until disease recurrence or unacceptable toxicity.

After a median follow-up of 14.4 months, investigators reported a statistically significant 35% improvement in recurrence-free survival (RFS) in those treated with pembrolizumab, compared with those who received placebo (hazard ratio, 0.65).

The most common adverse reactions reported in patients receiving pembrolizumab in KEYNOTE-716 were fatigue, diarrhea, pruritus, and arthralgia, each occurring in at least 20% of patients.

“Early identification and management of immune-mediated adverse reactions are essential to ensure safe use of Keytruda,” according to Merck.

A version of this article first appeared on Medscape.com.

Genomic profiling improves outcomes for patients with metastatic breast cancer as long as the alteration-drug match has good clinical trial evidence supporting its use, a new pooled analysis suggests.

“The message is very simple,” lead study author Fabrice Andre, MD, PhD, research director, Gustave Roussy Cancer Campus, Villejuif, France, told this news organization during a virtual press briefing. “If a genomic alteration is validated, it is useful to give targeted therapy, but if the genomic alteration is not validated, we should not give a targeted therapy.”

The study, which pooled results from phase 2 randomized trials SAFIR02-BREAST and SAFIR-P13K, was presented Dec. 7 in a virtual press briefing at the San Antonio Breast Cancer Symposium (SABCS) 2021.

The new analysis explored two key questions: Is genomic testing of a cancer effective? And how should oncologists interpret a genomic report?

A total of 1,462 patients with metastatic HER2-negative breast cancer underwent next-generation sequencing. After receiving six to eight cycles of chemotherapy, 238 patients (16%) were randomized to one of nine targeted therapies matched to the genomic alteration identified on testing or to maintenance chemotherapy.

Genomic alterations in the patients’ tumors were classified using the ESMO Scale of Actionability of Molecular Targets (ESCAT). A tier I ranking indicates that the alteration-drug match is associated with improved outcomes in clinical trials, while a tier II ranking means that the alteration-drug match is associated with antitumor activity but the magnitude of benefit remains unknown.

In an analysis of the overall trial population, Dr. Andre and colleagues found an improvement in progression-free survival in the targeted therapy group (median of 5.5 months) in comparison with the maintenance chemotherapy group (2.9 months), but the difference was not significant (P = .109).

In a subgroup of 115 patients presenting with I- or II-tier genomic alterations, median progression-free survival was 59% longer, at 9.1 months, among patients receiving targeted therapy, compared with 2.8 months in the maintenance chemotherapy group (hazard ratio, 0.41; P < .001).

In addition, the team carried out single-nucleotide polymorphism (SNP) array analyses on 926 patients. They identified 21 genes that were altered more frequently in the metastases compared with the primary tumors, and they observed that a high homologous recombination deficiency score in patients with BCRA 1 or 2 mutations was associated with a longer progression-free survival in patients treated with olaparib.

“We also identified a subset of patients who are resistant to CDK4/6 inhibitors who presented with CDK4 amplification, and this amplification is associated with overexpression,” Dr. Andre explained.

When asked whether most oncologists were using genomic profiling to tailor treatment for breast cancer patients, Dr. Andre said that multigene sequencing is now widely used.

“The issue is not so much whether we should use or not use genomics; the issue here is to force everyone to put the genomic alteration in the right context in terms of its level of evidence,” Dr. Andre told this news organization.

Oncologists may overinterpret the genomic activation identified and give a targeted therapy that is not validated, but “oncologists should not use genomic information when the target has not been previously validated in a therapeutic trial,” he added.

Virginia Kaklamani, MD, professor of medicine at the University of Texas Health Sciences Center in San Antonio, said in an interview that approximately 5 years ago, Dr. Andre was part of the first debate at the SABCS discussing whether oncologists should be conducting next-generation sequencing for their patients with breast cancer.

“At the time, [Dr.] Andre’s comment was that we should not be doing it,” recalled Dr. Kaklamani, who is also leader of the breast cancer program at the Mays Cancer Center at the University of Texas Health San Antonio MD Anderson. “At that point, I think it was clear that we did not have the data we needed to be able to use next-generation sequencing to change our clinical management.”

However, the evidence has evolved. “Based on this clinical trial, I think we now do have the data,” she said. “I think that [next-generation sequencing] is something we will be using more and more in practice and treating our patients based on [validated] genomic alterations.”

Dr. Andre has received grants or advisory board/speaker honoraria from Daiichi Sankyo, Roche, Pfizer, AstraZeneca, Lily, and Novartis. Dr. Kaklamani has served as a consultant for Puma, AstraZeneca, Athenex, and Immunomedics, has received research funding from Eisai, and has served as a speaker for Pfizer, Celgene, Genentech, and Genomic Health, among other companies.

A version of this article first appeared on Medscape.com.

Genomic profiling improves outcomes for patients with metastatic breast cancer as long as the alteration-drug match has good clinical trial evidence supporting its use, a new pooled analysis suggests.

“The message is very simple,” lead study author Fabrice Andre, MD, PhD, research director, Gustave Roussy Cancer Campus, Villejuif, France, told this news organization during a virtual press briefing. “If a genomic alteration is validated, it is useful to give targeted therapy, but if the genomic alteration is not validated, we should not give a targeted therapy.”

The study, which pooled results from phase 2 randomized trials SAFIR02-BREAST and SAFIR-P13K, was presented Dec. 7 in a virtual press briefing at the San Antonio Breast Cancer Symposium (SABCS) 2021.

The new analysis explored two key questions: Is genomic testing of a cancer effective? And how should oncologists interpret a genomic report?

A total of 1,462 patients with metastatic HER2-negative breast cancer underwent next-generation sequencing. After receiving six to eight cycles of chemotherapy, 238 patients (16%) were randomized to one of nine targeted therapies matched to the genomic alteration identified on testing or to maintenance chemotherapy.

Genomic alterations in the patients’ tumors were classified using the ESMO Scale of Actionability of Molecular Targets (ESCAT). A tier I ranking indicates that the alteration-drug match is associated with improved outcomes in clinical trials, while a tier II ranking means that the alteration-drug match is associated with antitumor activity but the magnitude of benefit remains unknown.

In an analysis of the overall trial population, Dr. Andre and colleagues found an improvement in progression-free survival in the targeted therapy group (median of 5.5 months) in comparison with the maintenance chemotherapy group (2.9 months), but the difference was not significant (P = .109).

In a subgroup of 115 patients presenting with I- or II-tier genomic alterations, median progression-free survival was 59% longer, at 9.1 months, among patients receiving targeted therapy, compared with 2.8 months in the maintenance chemotherapy group (hazard ratio, 0.41; P < .001).

In addition, the team carried out single-nucleotide polymorphism (SNP) array analyses on 926 patients. They identified 21 genes that were altered more frequently in the metastases compared with the primary tumors, and they observed that a high homologous recombination deficiency score in patients with BCRA 1 or 2 mutations was associated with a longer progression-free survival in patients treated with olaparib.

“We also identified a subset of patients who are resistant to CDK4/6 inhibitors who presented with CDK4 amplification, and this amplification is associated with overexpression,” Dr. Andre explained.

When asked whether most oncologists were using genomic profiling to tailor treatment for breast cancer patients, Dr. Andre said that multigene sequencing is now widely used.

“The issue is not so much whether we should use or not use genomics; the issue here is to force everyone to put the genomic alteration in the right context in terms of its level of evidence,” Dr. Andre told this news organization.

Oncologists may overinterpret the genomic activation identified and give a targeted therapy that is not validated, but “oncologists should not use genomic information when the target has not been previously validated in a therapeutic trial,” he added.

Virginia Kaklamani, MD, professor of medicine at the University of Texas Health Sciences Center in San Antonio, said in an interview that approximately 5 years ago, Dr. Andre was part of the first debate at the SABCS discussing whether oncologists should be conducting next-generation sequencing for their patients with breast cancer.

“At the time, [Dr.] Andre’s comment was that we should not be doing it,” recalled Dr. Kaklamani, who is also leader of the breast cancer program at the Mays Cancer Center at the University of Texas Health San Antonio MD Anderson. “At that point, I think it was clear that we did not have the data we needed to be able to use next-generation sequencing to change our clinical management.”

However, the evidence has evolved. “Based on this clinical trial, I think we now do have the data,” she said. “I think that [next-generation sequencing] is something we will be using more and more in practice and treating our patients based on [validated] genomic alterations.”

Dr. Andre has received grants or advisory board/speaker honoraria from Daiichi Sankyo, Roche, Pfizer, AstraZeneca, Lily, and Novartis. Dr. Kaklamani has served as a consultant for Puma, AstraZeneca, Athenex, and Immunomedics, has received research funding from Eisai, and has served as a speaker for Pfizer, Celgene, Genentech, and Genomic Health, among other companies.

A version of this article first appeared on Medscape.com.

Genomic profiling improves outcomes for patients with metastatic breast cancer as long as the alteration-drug match has good clinical trial evidence supporting its use, a new pooled analysis suggests.

“The message is very simple,” lead study author Fabrice Andre, MD, PhD, research director, Gustave Roussy Cancer Campus, Villejuif, France, told this news organization during a virtual press briefing. “If a genomic alteration is validated, it is useful to give targeted therapy, but if the genomic alteration is not validated, we should not give a targeted therapy.”

The study, which pooled results from phase 2 randomized trials SAFIR02-BREAST and SAFIR-P13K, was presented Dec. 7 in a virtual press briefing at the San Antonio Breast Cancer Symposium (SABCS) 2021.

The new analysis explored two key questions: Is genomic testing of a cancer effective? And how should oncologists interpret a genomic report?

A total of 1,462 patients with metastatic HER2-negative breast cancer underwent next-generation sequencing. After receiving six to eight cycles of chemotherapy, 238 patients (16%) were randomized to one of nine targeted therapies matched to the genomic alteration identified on testing or to maintenance chemotherapy.

Genomic alterations in the patients’ tumors were classified using the ESMO Scale of Actionability of Molecular Targets (ESCAT). A tier I ranking indicates that the alteration-drug match is associated with improved outcomes in clinical trials, while a tier II ranking means that the alteration-drug match is associated with antitumor activity but the magnitude of benefit remains unknown.

In an analysis of the overall trial population, Dr. Andre and colleagues found an improvement in progression-free survival in the targeted therapy group (median of 5.5 months) in comparison with the maintenance chemotherapy group (2.9 months), but the difference was not significant (P = .109).

In a subgroup of 115 patients presenting with I- or II-tier genomic alterations, median progression-free survival was 59% longer, at 9.1 months, among patients receiving targeted therapy, compared with 2.8 months in the maintenance chemotherapy group (hazard ratio, 0.41; P < .001).

In addition, the team carried out single-nucleotide polymorphism (SNP) array analyses on 926 patients. They identified 21 genes that were altered more frequently in the metastases compared with the primary tumors, and they observed that a high homologous recombination deficiency score in patients with BCRA 1 or 2 mutations was associated with a longer progression-free survival in patients treated with olaparib.

“We also identified a subset of patients who are resistant to CDK4/6 inhibitors who presented with CDK4 amplification, and this amplification is associated with overexpression,” Dr. Andre explained.

When asked whether most oncologists were using genomic profiling to tailor treatment for breast cancer patients, Dr. Andre said that multigene sequencing is now widely used.

“The issue is not so much whether we should use or not use genomics; the issue here is to force everyone to put the genomic alteration in the right context in terms of its level of evidence,” Dr. Andre told this news organization.

Oncologists may overinterpret the genomic activation identified and give a targeted therapy that is not validated, but “oncologists should not use genomic information when the target has not been previously validated in a therapeutic trial,” he added.

Virginia Kaklamani, MD, professor of medicine at the University of Texas Health Sciences Center in San Antonio, said in an interview that approximately 5 years ago, Dr. Andre was part of the first debate at the SABCS discussing whether oncologists should be conducting next-generation sequencing for their patients with breast cancer.

“At the time, [Dr.] Andre’s comment was that we should not be doing it,” recalled Dr. Kaklamani, who is also leader of the breast cancer program at the Mays Cancer Center at the University of Texas Health San Antonio MD Anderson. “At that point, I think it was clear that we did not have the data we needed to be able to use next-generation sequencing to change our clinical management.”

However, the evidence has evolved. “Based on this clinical trial, I think we now do have the data,” she said. “I think that [next-generation sequencing] is something we will be using more and more in practice and treating our patients based on [validated] genomic alterations.”

Dr. Andre has received grants or advisory board/speaker honoraria from Daiichi Sankyo, Roche, Pfizer, AstraZeneca, Lily, and Novartis. Dr. Kaklamani has served as a consultant for Puma, AstraZeneca, Athenex, and Immunomedics, has received research funding from Eisai, and has served as a speaker for Pfizer, Celgene, Genentech, and Genomic Health, among other companies.

A version of this article first appeared on Medscape.com.

People with thyroid cancer treated with thyroidectomy have as much as a 40% increased risk of developing type 2 diabetes, regardless of their age, with the elevated risk observed with low as well as high doses of postoperative levothyroxine, new research shows.

“This is the first population-based study to demonstrate an elevated risk of type 2 diabetes in postthyroidectomy patients with thyroid cancer, compared with that in matched controls,” wrote the authors of the research, published recently in the Journal of Clinical Endocrinology & Metabolism.

“Notably, there was a U-shaped relationship between postoperative levothyroxine dosage, a surrogate marker of TSH suppression, and the risk of type 2 diabetes,” said Hye Jin Yoo, MD, of the division of endocrinology and metabolism, Korea University College of Medicine, Seoul, and colleagues.

While other studies have linked thyroidectomy for thyroid cancer with an elevated risk for other metabolic conditions, including coronary heart disease and ischemic stroke, the relatively high diabetes risk is unexpected, said Tyler Drake, MD, an endocrinologist with the Minneapolis VA Health Care System.

“A 40% increased risk of diabetes is a big surprise,” he said in an interview.

“Diabetes is very common, with about one in 10 U.S. adults having type 2 diabetes, but a 40% increased risk in thyroid cancer patients is higher than I see in my clinical practice. [However], it is important to note that the [highest] risk was predominantly among the groups on the lowest and highest doses of levothyroxine,” said Dr. Drake, assistant professor of medicine at the University of Minnesota, Minneapolis.
 

U-shaped relationship between levothyroxine dose and diabetes risk

The findings are from a study of 36,377 patients with thyroid cancer in the National Health Insurance Service (NHIS) database in Korea who had undergone a thyroidectomy between 2004 and 2013.

The patients were matched 1:1 with controls who had nonthyroid cancers. Their mean age was 46.6 years, about 30% were male, and their mean body mass index was 23.8 kg/m².

Over a mean follow-up of 6.6 years, the patients with thyroid cancer had a significantly higher risk of developing type 2 diabetes, at a rate of 47.5% (10,812) compared with 36.9% (9414; HR, 1.43; P < .001) in the control group, after adjustment for factors such as age, sex, BMI, smoking, drinking, systolic blood pressure, and fasting glucose.

The risk of type 2 diabetes among those with thyroid cancer was higher among the 83.2% of patients who underwent a total thyroidectomy compared with the 16.8% who had a unilateral lobectomy (HR, 1.06; P < .001).

In addition, those with thyroid cancer who received the lowest as well as highest dosages of levothyroxine had significantly higher risks of type 2 diabetes compared with controls (HR, 1.50 and 1.39, respectively; both P < .001).

A closer look at quartiles of levothyroxine dosing showed the first (lowest) quartile (defined as a mean levothyroxine dosage of < 101 mcg/day) was associated with an increased risk of type 2 diabetes compared with the second quartile group (101-127 mcg/day; HR, 1.45), as was the fourth quartile (≥ 150 mcg/day; HR, 1.37), while a decreased risk of type 2 diabetes was observed in the third quartile group (128-149 mcg/day versus the second quartile group; HR, 0.91).

“This result suggests a U-shaped relationship between the mean levothyroxine dosage and risk of type 2 diabetes in postthyroidectomy patients with thyroid cancer,” the authors said.

However, “consistent with previous studies, the present study showed that the highest risk of type 2 diabetes was observed in patients with thyroid cancer who were treated with the lowest mean dosage of levothyroxine,” they noted.

“This result suggests that inadequate supplementation of thyroid hormones may worsen glucose metabolism and should therefore be avoided.”
 

Potential mechanisms

Abnormal thyroid function, including hypo- and hyperthyroidism, following thyroidectomy and subsequent treatment with levothyroxine, is known to have potentially detrimental effects on glucose regulation among patients with thyroid cancer.

The potential mechanisms linking hypothyroidism with diabetes specifically include the possibility that insulin becomes unable to promote the utilization of glucose by muscles and adipose tissue. However, thyroid hormone replacement has been associated with a normalization of insulin sensitivity, the authors noted.

Meanwhile, glucose intolerance is common among patients with hyperthyroidism, largely due to an increase in hepatic glucose production, and likewise, the normalization of thyroid levels among those treated with methimazole has been linked to normalization of glucose and lipid metabolism alterations.

Dr. Drake noted that an important study limitation is that patients were analyzed based on their levothyroxine dose and not their TSH values, which the authors explain was due to the unavailability of the TSH values. 

“By looking at levothyroxine doses, and not TSH values, it is possible some patients were being improperly treated with either too much or too little levothyroxine,” Dr. Drake noted.
 

Control group should have had hypothyroidism

The findings nevertheless shed light on the risk of diabetes following thyroidectomy for thyroid cancer, Anupam Kotwal, MD, commented on the study.

“This study is significant because it addresses an important topic exploring the link between thyroid dysfunction and metabolic disease, in this case ... hypothyroidism, due to surgery for thyroid cancer and type 2 diabetes,” Dr. Kotwal, assistant professor of medicine in the division of diabetes, endocrinology & metabolism at the University of Nebraska Medical Center, Omaha, said in an interview.

In terms of other limitations, Dr. Kotwal noted that the controls did not have hypothyroidism; therefore, “from this study, it is impossible to confirm whether hypothyroidism from any cause would be associated with higher incidence of diabetes or if it is specific to thyroid surgery for thyroid cancer.

“It would have been useful to have a control group of autoimmune primary hypothyroidism to evaluate the rate of diabetes during a similar follow-up duration,” Dr. Kotwal said.

“Hence, cohort studies with more granular data such as degree of TSH suppression and having a control group of hypothyroid patients due to autoimmune thyroid disease are needed to better understand this risk.”

Dr. Kotwal and Dr. Drake have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

People with thyroid cancer treated with thyroidectomy have as much as a 40% increased risk of developing type 2 diabetes, regardless of their age, with the elevated risk observed with low as well as high doses of postoperative levothyroxine, new research shows.

“This is the first population-based study to demonstrate an elevated risk of type 2 diabetes in postthyroidectomy patients with thyroid cancer, compared with that in matched controls,” wrote the authors of the research, published recently in the Journal of Clinical Endocrinology & Metabolism.

“Notably, there was a U-shaped relationship between postoperative levothyroxine dosage, a surrogate marker of TSH suppression, and the risk of type 2 diabetes,” said Hye Jin Yoo, MD, of the division of endocrinology and metabolism, Korea University College of Medicine, Seoul, and colleagues.

While other studies have linked thyroidectomy for thyroid cancer with an elevated risk for other metabolic conditions, including coronary heart disease and ischemic stroke, the relatively high diabetes risk is unexpected, said Tyler Drake, MD, an endocrinologist with the Minneapolis VA Health Care System.

“A 40% increased risk of diabetes is a big surprise,” he said in an interview.

“Diabetes is very common, with about one in 10 U.S. adults having type 2 diabetes, but a 40% increased risk in thyroid cancer patients is higher than I see in my clinical practice. [However], it is important to note that the [highest] risk was predominantly among the groups on the lowest and highest doses of levothyroxine,” said Dr. Drake, assistant professor of medicine at the University of Minnesota, Minneapolis.
 

U-shaped relationship between levothyroxine dose and diabetes risk

The findings are from a study of 36,377 patients with thyroid cancer in the National Health Insurance Service (NHIS) database in Korea who had undergone a thyroidectomy between 2004 and 2013.

The patients were matched 1:1 with controls who had nonthyroid cancers. Their mean age was 46.6 years, about 30% were male, and their mean body mass index was 23.8 kg/m².

Over a mean follow-up of 6.6 years, the patients with thyroid cancer had a significantly higher risk of developing type 2 diabetes, at a rate of 47.5% (10,812) compared with 36.9% (9414; HR, 1.43; P < .001) in the control group, after adjustment for factors such as age, sex, BMI, smoking, drinking, systolic blood pressure, and fasting glucose.

The risk of type 2 diabetes among those with thyroid cancer was higher among the 83.2% of patients who underwent a total thyroidectomy compared with the 16.8% who had a unilateral lobectomy (HR, 1.06; P < .001).

In addition, those with thyroid cancer who received the lowest as well as highest dosages of levothyroxine had significantly higher risks of type 2 diabetes compared with controls (HR, 1.50 and 1.39, respectively; both P < .001).

A closer look at quartiles of levothyroxine dosing showed the first (lowest) quartile (defined as a mean levothyroxine dosage of < 101 mcg/day) was associated with an increased risk of type 2 diabetes compared with the second quartile group (101-127 mcg/day; HR, 1.45), as was the fourth quartile (≥ 150 mcg/day; HR, 1.37), while a decreased risk of type 2 diabetes was observed in the third quartile group (128-149 mcg/day versus the second quartile group; HR, 0.91).

“This result suggests a U-shaped relationship between the mean levothyroxine dosage and risk of type 2 diabetes in postthyroidectomy patients with thyroid cancer,” the authors said.

However, “consistent with previous studies, the present study showed that the highest risk of type 2 diabetes was observed in patients with thyroid cancer who were treated with the lowest mean dosage of levothyroxine,” they noted.

“This result suggests that inadequate supplementation of thyroid hormones may worsen glucose metabolism and should therefore be avoided.”
 

Potential mechanisms

Abnormal thyroid function, including hypo- and hyperthyroidism, following thyroidectomy and subsequent treatment with levothyroxine, is known to have potentially detrimental effects on glucose regulation among patients with thyroid cancer.

The potential mechanisms linking hypothyroidism with diabetes specifically include the possibility that insulin becomes unable to promote the utilization of glucose by muscles and adipose tissue. However, thyroid hormone replacement has been associated with a normalization of insulin sensitivity, the authors noted.

Meanwhile, glucose intolerance is common among patients with hyperthyroidism, largely due to an increase in hepatic glucose production, and likewise, the normalization of thyroid levels among those treated with methimazole has been linked to normalization of glucose and lipid metabolism alterations.

Dr. Drake noted that an important study limitation is that patients were analyzed based on their levothyroxine dose and not their TSH values, which the authors explain was due to the unavailability of the TSH values. 

“By looking at levothyroxine doses, and not TSH values, it is possible some patients were being improperly treated with either too much or too little levothyroxine,” Dr. Drake noted.
 

Control group should have had hypothyroidism

The findings nevertheless shed light on the risk of diabetes following thyroidectomy for thyroid cancer, Anupam Kotwal, MD, commented on the study.

“This study is significant because it addresses an important topic exploring the link between thyroid dysfunction and metabolic disease, in this case ... hypothyroidism, due to surgery for thyroid cancer and type 2 diabetes,” Dr. Kotwal, assistant professor of medicine in the division of diabetes, endocrinology & metabolism at the University of Nebraska Medical Center, Omaha, said in an interview.

In terms of other limitations, Dr. Kotwal noted that the controls did not have hypothyroidism; therefore, “from this study, it is impossible to confirm whether hypothyroidism from any cause would be associated with higher incidence of diabetes or if it is specific to thyroid surgery for thyroid cancer.

“It would have been useful to have a control group of autoimmune primary hypothyroidism to evaluate the rate of diabetes during a similar follow-up duration,” Dr. Kotwal said.

“Hence, cohort studies with more granular data such as degree of TSH suppression and having a control group of hypothyroid patients due to autoimmune thyroid disease are needed to better understand this risk.”

Dr. Kotwal and Dr. Drake have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

People with thyroid cancer treated with thyroidectomy have as much as a 40% increased risk of developing type 2 diabetes, regardless of their age, with the elevated risk observed with low as well as high doses of postoperative levothyroxine, new research shows.

“This is the first population-based study to demonstrate an elevated risk of type 2 diabetes in postthyroidectomy patients with thyroid cancer, compared with that in matched controls,” wrote the authors of the research, published recently in the Journal of Clinical Endocrinology & Metabolism.

“Notably, there was a U-shaped relationship between postoperative levothyroxine dosage, a surrogate marker of TSH suppression, and the risk of type 2 diabetes,” said Hye Jin Yoo, MD, of the division of endocrinology and metabolism, Korea University College of Medicine, Seoul, and colleagues.

While other studies have linked thyroidectomy for thyroid cancer with an elevated risk for other metabolic conditions, including coronary heart disease and ischemic stroke, the relatively high diabetes risk is unexpected, said Tyler Drake, MD, an endocrinologist with the Minneapolis VA Health Care System.

“A 40% increased risk of diabetes is a big surprise,” he said in an interview.

“Diabetes is very common, with about one in 10 U.S. adults having type 2 diabetes, but a 40% increased risk in thyroid cancer patients is higher than I see in my clinical practice. [However], it is important to note that the [highest] risk was predominantly among the groups on the lowest and highest doses of levothyroxine,” said Dr. Drake, assistant professor of medicine at the University of Minnesota, Minneapolis.
 

U-shaped relationship between levothyroxine dose and diabetes risk

The findings are from a study of 36,377 patients with thyroid cancer in the National Health Insurance Service (NHIS) database in Korea who had undergone a thyroidectomy between 2004 and 2013.

The patients were matched 1:1 with controls who had nonthyroid cancers. Their mean age was 46.6 years, about 30% were male, and their mean body mass index was 23.8 kg/m².

Over a mean follow-up of 6.6 years, the patients with thyroid cancer had a significantly higher risk of developing type 2 diabetes, at a rate of 47.5% (10,812) compared with 36.9% (9414; HR, 1.43; P < .001) in the control group, after adjustment for factors such as age, sex, BMI, smoking, drinking, systolic blood pressure, and fasting glucose.

The risk of type 2 diabetes among those with thyroid cancer was higher among the 83.2% of patients who underwent a total thyroidectomy compared with the 16.8% who had a unilateral lobectomy (HR, 1.06; P < .001).

In addition, those with thyroid cancer who received the lowest as well as highest dosages of levothyroxine had significantly higher risks of type 2 diabetes compared with controls (HR, 1.50 and 1.39, respectively; both P < .001).

A closer look at quartiles of levothyroxine dosing showed the first (lowest) quartile (defined as a mean levothyroxine dosage of < 101 mcg/day) was associated with an increased risk of type 2 diabetes compared with the second quartile group (101-127 mcg/day; HR, 1.45), as was the fourth quartile (≥ 150 mcg/day; HR, 1.37), while a decreased risk of type 2 diabetes was observed in the third quartile group (128-149 mcg/day versus the second quartile group; HR, 0.91).

“This result suggests a U-shaped relationship between the mean levothyroxine dosage and risk of type 2 diabetes in postthyroidectomy patients with thyroid cancer,” the authors said.

However, “consistent with previous studies, the present study showed that the highest risk of type 2 diabetes was observed in patients with thyroid cancer who were treated with the lowest mean dosage of levothyroxine,” they noted.

“This result suggests that inadequate supplementation of thyroid hormones may worsen glucose metabolism and should therefore be avoided.”
 

Potential mechanisms

Abnormal thyroid function, including hypo- and hyperthyroidism, following thyroidectomy and subsequent treatment with levothyroxine, is known to have potentially detrimental effects on glucose regulation among patients with thyroid cancer.

The potential mechanisms linking hypothyroidism with diabetes specifically include the possibility that insulin becomes unable to promote the utilization of glucose by muscles and adipose tissue. However, thyroid hormone replacement has been associated with a normalization of insulin sensitivity, the authors noted.

Meanwhile, glucose intolerance is common among patients with hyperthyroidism, largely due to an increase in hepatic glucose production, and likewise, the normalization of thyroid levels among those treated with methimazole has been linked to normalization of glucose and lipid metabolism alterations.

Dr. Drake noted that an important study limitation is that patients were analyzed based on their levothyroxine dose and not their TSH values, which the authors explain was due to the unavailability of the TSH values. 

“By looking at levothyroxine doses, and not TSH values, it is possible some patients were being improperly treated with either too much or too little levothyroxine,” Dr. Drake noted.
 

Control group should have had hypothyroidism

The findings nevertheless shed light on the risk of diabetes following thyroidectomy for thyroid cancer, Anupam Kotwal, MD, commented on the study.

“This study is significant because it addresses an important topic exploring the link between thyroid dysfunction and metabolic disease, in this case ... hypothyroidism, due to surgery for thyroid cancer and type 2 diabetes,” Dr. Kotwal, assistant professor of medicine in the division of diabetes, endocrinology & metabolism at the University of Nebraska Medical Center, Omaha, said in an interview.

In terms of other limitations, Dr. Kotwal noted that the controls did not have hypothyroidism; therefore, “from this study, it is impossible to confirm whether hypothyroidism from any cause would be associated with higher incidence of diabetes or if it is specific to thyroid surgery for thyroid cancer.

“It would have been useful to have a control group of autoimmune primary hypothyroidism to evaluate the rate of diabetes during a similar follow-up duration,” Dr. Kotwal said.

“Hence, cohort studies with more granular data such as degree of TSH suppression and having a control group of hypothyroid patients due to autoimmune thyroid disease are needed to better understand this risk.”

Dr. Kotwal and Dr. Drake have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

The U.S. Food and Drug Administration (FDA) has approved daratumumab + hyaluronidase-fihj (Darzalex Faspro) and carfilzomib (Kyprolis) plus dexamethasone (Kd) for patients with relapsed or refractory multiple myeloma who have had one to three prior lines of therapy.

Using the newly approved combination in this setting is a time-saver for patients and clinics, observed an investigator.

“The approval of subcutaneous daratumumab in combination with Kd will help clinicians address unmet patient needs by reducing the administration time from hours to just minutes and reducing the frequency of infusion-related reactions, as compared to the intravenous daratumumab formulation in combination with Kd,” said Ajai Chari, MD, of Mount Sinai Cancer Clinical Trials Office in New York City in a Janssen press statement.

Efficacy data for the new approval come from a single-arm cohort of PLEIADES, a multicohort, open-label trial. The cohort included 66 patients with relapsed or refractory multiple myeloma who had received one or more prior lines of therapy. Patients received daratumumab + hyaluronidase-fihj subcutaneously in combination with carfilzomib and dexamethasone.

The main efficacy outcome measure was overall response rate, which was 84.8%. At a median follow-up of 9.2 months, the median duration of response had not been reached.

The response rate with the new combination, which features a subcutaneous injection, was akin to those with the older combination, which features the more time-consuming IV administration and was FDA approved, according to the company press release.

The most common adverse reactions (≥20%) occurring in patients treated with Darzalex Faspro, Kyprolis, and dexamethasone were upper respiratory tract infections, fatigue, insomnia, hypertension, diarrhea, cough, dyspnea, headache, pyrexia, nausea, and edema peripheral.

A version of this article first appeared on Medscape.com .

The U.S. Food and Drug Administration (FDA) has approved daratumumab + hyaluronidase-fihj (Darzalex Faspro) and carfilzomib (Kyprolis) plus dexamethasone (Kd) for patients with relapsed or refractory multiple myeloma who have had one to three prior lines of therapy.

Using the newly approved combination in this setting is a time-saver for patients and clinics, observed an investigator.

“The approval of subcutaneous daratumumab in combination with Kd will help clinicians address unmet patient needs by reducing the administration time from hours to just minutes and reducing the frequency of infusion-related reactions, as compared to the intravenous daratumumab formulation in combination with Kd,” said Ajai Chari, MD, of Mount Sinai Cancer Clinical Trials Office in New York City in a Janssen press statement.

Efficacy data for the new approval come from a single-arm cohort of PLEIADES, a multicohort, open-label trial. The cohort included 66 patients with relapsed or refractory multiple myeloma who had received one or more prior lines of therapy. Patients received daratumumab + hyaluronidase-fihj subcutaneously in combination with carfilzomib and dexamethasone.

The main efficacy outcome measure was overall response rate, which was 84.8%. At a median follow-up of 9.2 months, the median duration of response had not been reached.

The response rate with the new combination, which features a subcutaneous injection, was akin to those with the older combination, which features the more time-consuming IV administration and was FDA approved, according to the company press release.

The most common adverse reactions (≥20%) occurring in patients treated with Darzalex Faspro, Kyprolis, and dexamethasone were upper respiratory tract infections, fatigue, insomnia, hypertension, diarrhea, cough, dyspnea, headache, pyrexia, nausea, and edema peripheral.

A version of this article first appeared on Medscape.com .

The U.S. Food and Drug Administration (FDA) has approved daratumumab + hyaluronidase-fihj (Darzalex Faspro) and carfilzomib (Kyprolis) plus dexamethasone (Kd) for patients with relapsed or refractory multiple myeloma who have had one to three prior lines of therapy.

Using the newly approved combination in this setting is a time-saver for patients and clinics, observed an investigator.

“The approval of subcutaneous daratumumab in combination with Kd will help clinicians address unmet patient needs by reducing the administration time from hours to just minutes and reducing the frequency of infusion-related reactions, as compared to the intravenous daratumumab formulation in combination with Kd,” said Ajai Chari, MD, of Mount Sinai Cancer Clinical Trials Office in New York City in a Janssen press statement.

Efficacy data for the new approval come from a single-arm cohort of PLEIADES, a multicohort, open-label trial. The cohort included 66 patients with relapsed or refractory multiple myeloma who had received one or more prior lines of therapy. Patients received daratumumab + hyaluronidase-fihj subcutaneously in combination with carfilzomib and dexamethasone.

The main efficacy outcome measure was overall response rate, which was 84.8%. At a median follow-up of 9.2 months, the median duration of response had not been reached.

The response rate with the new combination, which features a subcutaneous injection, was akin to those with the older combination, which features the more time-consuming IV administration and was FDA approved, according to the company press release.

The most common adverse reactions (≥20%) occurring in patients treated with Darzalex Faspro, Kyprolis, and dexamethasone were upper respiratory tract infections, fatigue, insomnia, hypertension, diarrhea, cough, dyspnea, headache, pyrexia, nausea, and edema peripheral.

A version of this article first appeared on Medscape.com .

The U.S. Food and Drug Administration has approved pafolacianine (Cytalux), an imaging drug indicated for use in adult patients with ovarian cancer undergoing surgery.

The new drug “is designed to improve the ability to locate additional ovarian cancerous tissue that is normally difficult to detect during surgery,” according to the agency.

Pafolacianine, administered via intravenous injection prior to surgery, is the first FDA-approved tumor-targeted fluorescent agent for ovarian cancer.

In a press statement, drug inventor Philip Low, PhD, of Purdue University in West Lafayette, Ind., said the agent causes ovarian cancer lesions to “light up like stars against a night sky.”

Improving detection of ovarian cancer lesions is critical given that ovarian cancer is one of the “deadliest of all female reproductive system cancers,” according to the American Cancer Society. The organization estimates that there will be more than 21,000 new cases and more than 13,000 deaths in 2021.

Currently, surgeons use preoperative imaging as well as visual inspection of tumors under normal light and examination by touch to identify ovarian cancer lesions.

Pafolacianine offers a new tool to enhance surgeons’ ability “to identify deadly ovarian tumors that may otherwise go undetected,” Alex Gorovets, MD, deputy director of the office of specialty medicine in the FDA’s Center for Drug Evaluation and Research, said in a press statement.

Ovarian cancer often causes the body to overproduce the folate receptor protein in cell membranes. Pafolacianine, employed with a near-infrared fluorescence imaging system cleared by the FDA for use alongside the drug, binds to and illuminates these proteins under fluorescent light, “boosting surgeons’ ability to identify the cancerous tissue,” the agency in a statement.

The safety and effectiveness of pafolacianine was evaluated in a randomized, multi-center, open-label study of women diagnosed with ovarian cancer or with high clinical suspicion of ovarian cancer. Of the 134 women undergoing surgery who received a dose of pafolacianine and were evaluated under both normal and fluorescent light, 26.9% had at least one cancerous lesion detected that was not observed by standard visual or tactile inspection.

The most common side effects of pafolacianine were infusion-related reactions, including nausea, vomiting, abdominal pain, flushing, dyspepsia, chest discomfort, itching, and hypersensitivity.

Pafolacianine may cause fetal harm when administered to a pregnant woman. The use of folate, folic acid, or folate-containing supplements should be avoided within 48 hours before administration of pafolacianine. 

The FDA also cautioned about the possible risk of image interpretation errors, including false negatives and false positives, with the use of the new drug and near-infrared fluorescence imaging system.

The FDA previously granted pafolacianine orphan-drug, priority, and fast track designations.

A version of this article first appeared on Medscape.com.

The U.S. Food and Drug Administration has approved pafolacianine (Cytalux), an imaging drug indicated for use in adult patients with ovarian cancer undergoing surgery.

The new drug “is designed to improve the ability to locate additional ovarian cancerous tissue that is normally difficult to detect during surgery,” according to the agency.

Pafolacianine, administered via intravenous injection prior to surgery, is the first FDA-approved tumor-targeted fluorescent agent for ovarian cancer.

In a press statement, drug inventor Philip Low, PhD, of Purdue University in West Lafayette, Ind., said the agent causes ovarian cancer lesions to “light up like stars against a night sky.”

Improving detection of ovarian cancer lesions is critical given that ovarian cancer is one of the “deadliest of all female reproductive system cancers,” according to the American Cancer Society. The organization estimates that there will be more than 21,000 new cases and more than 13,000 deaths in 2021.

Currently, surgeons use preoperative imaging as well as visual inspection of tumors under normal light and examination by touch to identify ovarian cancer lesions.

Pafolacianine offers a new tool to enhance surgeons’ ability “to identify deadly ovarian tumors that may otherwise go undetected,” Alex Gorovets, MD, deputy director of the office of specialty medicine in the FDA’s Center for Drug Evaluation and Research, said in a press statement.

Ovarian cancer often causes the body to overproduce the folate receptor protein in cell membranes. Pafolacianine, employed with a near-infrared fluorescence imaging system cleared by the FDA for use alongside the drug, binds to and illuminates these proteins under fluorescent light, “boosting surgeons’ ability to identify the cancerous tissue,” the agency in a statement.

The safety and effectiveness of pafolacianine was evaluated in a randomized, multi-center, open-label study of women diagnosed with ovarian cancer or with high clinical suspicion of ovarian cancer. Of the 134 women undergoing surgery who received a dose of pafolacianine and were evaluated under both normal and fluorescent light, 26.9% had at least one cancerous lesion detected that was not observed by standard visual or tactile inspection.

The most common side effects of pafolacianine were infusion-related reactions, including nausea, vomiting, abdominal pain, flushing, dyspepsia, chest discomfort, itching, and hypersensitivity.

Pafolacianine may cause fetal harm when administered to a pregnant woman. The use of folate, folic acid, or folate-containing supplements should be avoided within 48 hours before administration of pafolacianine. 

The FDA also cautioned about the possible risk of image interpretation errors, including false negatives and false positives, with the use of the new drug and near-infrared fluorescence imaging system.

The FDA previously granted pafolacianine orphan-drug, priority, and fast track designations.

A version of this article first appeared on Medscape.com.

The U.S. Food and Drug Administration has approved pafolacianine (Cytalux), an imaging drug indicated for use in adult patients with ovarian cancer undergoing surgery.

The new drug “is designed to improve the ability to locate additional ovarian cancerous tissue that is normally difficult to detect during surgery,” according to the agency.

Pafolacianine, administered via intravenous injection prior to surgery, is the first FDA-approved tumor-targeted fluorescent agent for ovarian cancer.

In a press statement, drug inventor Philip Low, PhD, of Purdue University in West Lafayette, Ind., said the agent causes ovarian cancer lesions to “light up like stars against a night sky.”

Improving detection of ovarian cancer lesions is critical given that ovarian cancer is one of the “deadliest of all female reproductive system cancers,” according to the American Cancer Society. The organization estimates that there will be more than 21,000 new cases and more than 13,000 deaths in 2021.

Currently, surgeons use preoperative imaging as well as visual inspection of tumors under normal light and examination by touch to identify ovarian cancer lesions.

Pafolacianine offers a new tool to enhance surgeons’ ability “to identify deadly ovarian tumors that may otherwise go undetected,” Alex Gorovets, MD, deputy director of the office of specialty medicine in the FDA’s Center for Drug Evaluation and Research, said in a press statement.

Ovarian cancer often causes the body to overproduce the folate receptor protein in cell membranes. Pafolacianine, employed with a near-infrared fluorescence imaging system cleared by the FDA for use alongside the drug, binds to and illuminates these proteins under fluorescent light, “boosting surgeons’ ability to identify the cancerous tissue,” the agency in a statement.

The safety and effectiveness of pafolacianine was evaluated in a randomized, multi-center, open-label study of women diagnosed with ovarian cancer or with high clinical suspicion of ovarian cancer. Of the 134 women undergoing surgery who received a dose of pafolacianine and were evaluated under both normal and fluorescent light, 26.9% had at least one cancerous lesion detected that was not observed by standard visual or tactile inspection.

The most common side effects of pafolacianine were infusion-related reactions, including nausea, vomiting, abdominal pain, flushing, dyspepsia, chest discomfort, itching, and hypersensitivity.

Pafolacianine may cause fetal harm when administered to a pregnant woman. The use of folate, folic acid, or folate-containing supplements should be avoided within 48 hours before administration of pafolacianine. 

The FDA also cautioned about the possible risk of image interpretation errors, including false negatives and false positives, with the use of the new drug and near-infrared fluorescence imaging system.

The FDA previously granted pafolacianine orphan-drug, priority, and fast track designations.

A version of this article first appeared on Medscape.com.

A head-to-head comparison of immune checkpoint inhibitors atezolizumab and nivolumab and the chemotherapy drug docetaxel in patients with advanced non–small cell lung cancer (NSCLC), finds that atezolizumab was associated with a significantly longer overall survival than docetaxel and was on par with nivolumab.

The findings were reported in JAMA Network Open.

“Until recently, chemotherapy with platinum doublet was the standard first-line option for most patients with advanced NSCLC who did not have these genetic drivers or were not tested for them and remains the first choice in many parts of the world,” wrote the authors of the study which was led by Sreeram Ramagopalan, PhD, of F. Hoffmann-La Roche in Switzerland which funded the study.

Atezolizumab (Tecentriq, Genentech), which was approved in October by the U.S. Food and Drug Administration, is a monoclonal antibody that targets programmed cell death ligand 1 (PD-L1). It is also approved as monotherapy for patients with advanced NSCLC whose disease progressed despite treatment with platinum-based chemotherapy.

This is the first-known analysis that compares atezolizumab, nivolumab (Opdivo, Bristol Myers Squibb), and docetaxel (Taxotere, Sanofi) in patients outside of clinical trials, said Vivek Subbiah, MD, of MD Anderson Cancer Center and the study’s first author. “We have several new immune checkpoint inhibitors approved for treatment for NSCLC. Head-to-head comparison of the effectiveness of these agents in the real world are lacking,” he said.

Treatment with immune checkpoint inhibitors has shown improvement in the survival of patients with advanced NSCLC who failed chemotherapy treatment.

This study included 3,336 patients (mean age 67 years, 54.6% men) with advanced NSCLC who were treated with platinum-based chemotherapy. Data were collected from more than 1,000 clinics in the United States. Of the patients, 206 received atezolizumab, 500 received docetaxel, and 2,630 received nivolumab.

Patients were followed between May 2011 and March 2020. Atezolizumab and nivolumab showed a similar overall survival in these patients, but atezolizumab showed a longer overall survival, compared with docetaxel.

“Compared with docetaxel, atezolizumab was associated with significantly longer survival in the overall population and across all subgroups analyzed,” including patients with stage IIIB or IV cancer at diagnosis and nonsquamous NSCLC, the authors wrote. “Atezolizumab was associated with longer overall survival compared with docetaxel and was on par with nivolumab, supporting current clinical guidelines for systemic therapy for patients with advanced NSCLC in the U.S.”

Limitations of the study included its observational design and a small number of patients receiving atezolizumab. The authors suggested that studies using larger sample sizes are needed.

This study was funded by F. Hoffmann-La Roche. Genentech is a subsidiary of F. Hoffmann-La Roche.

A head-to-head comparison of immune checkpoint inhibitors atezolizumab and nivolumab and the chemotherapy drug docetaxel in patients with advanced non–small cell lung cancer (NSCLC), finds that atezolizumab was associated with a significantly longer overall survival than docetaxel and was on par with nivolumab.

The findings were reported in JAMA Network Open.

“Until recently, chemotherapy with platinum doublet was the standard first-line option for most patients with advanced NSCLC who did not have these genetic drivers or were not tested for them and remains the first choice in many parts of the world,” wrote the authors of the study which was led by Sreeram Ramagopalan, PhD, of F. Hoffmann-La Roche in Switzerland which funded the study.

Atezolizumab (Tecentriq, Genentech), which was approved in October by the U.S. Food and Drug Administration, is a monoclonal antibody that targets programmed cell death ligand 1 (PD-L1). It is also approved as monotherapy for patients with advanced NSCLC whose disease progressed despite treatment with platinum-based chemotherapy.

This is the first-known analysis that compares atezolizumab, nivolumab (Opdivo, Bristol Myers Squibb), and docetaxel (Taxotere, Sanofi) in patients outside of clinical trials, said Vivek Subbiah, MD, of MD Anderson Cancer Center and the study’s first author. “We have several new immune checkpoint inhibitors approved for treatment for NSCLC. Head-to-head comparison of the effectiveness of these agents in the real world are lacking,” he said.

Treatment with immune checkpoint inhibitors has shown improvement in the survival of patients with advanced NSCLC who failed chemotherapy treatment.

This study included 3,336 patients (mean age 67 years, 54.6% men) with advanced NSCLC who were treated with platinum-based chemotherapy. Data were collected from more than 1,000 clinics in the United States. Of the patients, 206 received atezolizumab, 500 received docetaxel, and 2,630 received nivolumab.

Patients were followed between May 2011 and March 2020. Atezolizumab and nivolumab showed a similar overall survival in these patients, but atezolizumab showed a longer overall survival, compared with docetaxel.

“Compared with docetaxel, atezolizumab was associated with significantly longer survival in the overall population and across all subgroups analyzed,” including patients with stage IIIB or IV cancer at diagnosis and nonsquamous NSCLC, the authors wrote. “Atezolizumab was associated with longer overall survival compared with docetaxel and was on par with nivolumab, supporting current clinical guidelines for systemic therapy for patients with advanced NSCLC in the U.S.”

Limitations of the study included its observational design and a small number of patients receiving atezolizumab. The authors suggested that studies using larger sample sizes are needed.

This study was funded by F. Hoffmann-La Roche. Genentech is a subsidiary of F. Hoffmann-La Roche.

A head-to-head comparison of immune checkpoint inhibitors atezolizumab and nivolumab and the chemotherapy drug docetaxel in patients with advanced non–small cell lung cancer (NSCLC), finds that atezolizumab was associated with a significantly longer overall survival than docetaxel and was on par with nivolumab.

The findings were reported in JAMA Network Open.

“Until recently, chemotherapy with platinum doublet was the standard first-line option for most patients with advanced NSCLC who did not have these genetic drivers or were not tested for them and remains the first choice in many parts of the world,” wrote the authors of the study which was led by Sreeram Ramagopalan, PhD, of F. Hoffmann-La Roche in Switzerland which funded the study.

Atezolizumab (Tecentriq, Genentech), which was approved in October by the U.S. Food and Drug Administration, is a monoclonal antibody that targets programmed cell death ligand 1 (PD-L1). It is also approved as monotherapy for patients with advanced NSCLC whose disease progressed despite treatment with platinum-based chemotherapy.

This is the first-known analysis that compares atezolizumab, nivolumab (Opdivo, Bristol Myers Squibb), and docetaxel (Taxotere, Sanofi) in patients outside of clinical trials, said Vivek Subbiah, MD, of MD Anderson Cancer Center and the study’s first author. “We have several new immune checkpoint inhibitors approved for treatment for NSCLC. Head-to-head comparison of the effectiveness of these agents in the real world are lacking,” he said.

Treatment with immune checkpoint inhibitors has shown improvement in the survival of patients with advanced NSCLC who failed chemotherapy treatment.

This study included 3,336 patients (mean age 67 years, 54.6% men) with advanced NSCLC who were treated with platinum-based chemotherapy. Data were collected from more than 1,000 clinics in the United States. Of the patients, 206 received atezolizumab, 500 received docetaxel, and 2,630 received nivolumab.

Patients were followed between May 2011 and March 2020. Atezolizumab and nivolumab showed a similar overall survival in these patients, but atezolizumab showed a longer overall survival, compared with docetaxel.

“Compared with docetaxel, atezolizumab was associated with significantly longer survival in the overall population and across all subgroups analyzed,” including patients with stage IIIB or IV cancer at diagnosis and nonsquamous NSCLC, the authors wrote. “Atezolizumab was associated with longer overall survival compared with docetaxel and was on par with nivolumab, supporting current clinical guidelines for systemic therapy for patients with advanced NSCLC in the U.S.”

Limitations of the study included its observational design and a small number of patients receiving atezolizumab. The authors suggested that studies using larger sample sizes are needed.

This study was funded by F. Hoffmann-La Roche. Genentech is a subsidiary of F. Hoffmann-La Roche.

New U.S. data show that the incidence of colorectal cancer (CRC) is on the rise among people aged 50–54 years, mirroring the well-documented increases in early-onset CRC in persons younger than 50 years.

“It’s likely that the factors contributing to CRC at age 50–54 years are the same factors that contribute to early-onset CRC, which has increased in parallel,” Caitlin Murphy, PhD, MPH, with the University of Texas Health Science Center at Houston, said in an interview.

“Many studies published in just the last year show that the well-known risk factors of CRC in older adults, such as obesity or sedentary lifestyle, are risk factors of CRC in younger adults. Growing evidence also suggests that early life exposures, or exposures in childhood, infancy, or even in the womb, play an important role,” Dr. Murphy said.

The study was published online October 28 in Gastroenterology .

Dr. Murphy and colleagues examined trends in age-specific CRC incidence rates for individuals aged 45–49, 50–54, and 55–59 years using the National Cancer Institute Surveillance, Epidemiology, and End Results (SEER) program.

During the period 1992–2018, there were a total of 101,609 cases of CRC among adults aged 45–59 years.

Further analysis showed that the CRC incidence rates rose from 23.4 to 34.0 per 100,000 among people aged 45–49 years and from 46.4 to 63.8 per 100,000 among those aged 50–54 years.

Conversely, incidence rates decreased among individuals aged 55–59 years, from 81.7 to 63.7 per 100,000 persons.

“Because of this opposing trend, or decreasing rates for age 55–59 years and increasing rates for age 50–54 years, incidence rates for the two age groups were nearly identical in 2016–18,” the researchers write.

They also found a “clear pattern” of increasing CRC incidence among adults in their early 50s, supporting the hypothesis that incidence rates increase at older ages as higher-risk generations mature, the researchers note.

These data send a clear message, Dr. Murphy told this news organization.

“Don’t delay colorectal cancer screening. Encourage on-time screening by discussing screening with patients before they reach the recommended age to initiate screening. The U.S. Preventive Services Task Force now recommends initiating average-risk screening at age 45 years,” Dr. Murphy said.
 

Concerning but not surprising

Rebecca Siegel, MPH, scientific director of Surveillance Research at the American Cancer Society, in Atlanta, who wasn’t involved in the study, said the results are “not surprising” and mirror the results of a 2017 study that showed that the incidence of CRC was increasing among individuals aged 50–54 years, as reported.

What’s “concerning,” Ms. Siegel said, is that people in this age group “have been recommended to be screened for CRC for decades. Hopefully, because the age to begin screening has been lowered from 50 to 45 years, this uptick will eventually flatten.”

David Johnson, MD, professor of medicine and chief of gastroenterology at Eastern Virginia Medical School, in Norfolk, Va., who also wasn’t involved in the study, said the increasing incidence is “concerning in this younger population, and similar to what is seen recently for the 45- to 49-year-old population.

“Recent data have linked dietary influences in the early development of precancerous colon polyps and colon cancer. The increased ingestion of processed foods and sugary beverages, most of which contain high fructose corn syrup, is very likely involved in the pathogenesis to explain these striking epidemiologic shifts,” Dr. Johnson said in an interview.

“These concerns will likely be compounded by the COVID-related adverse effects on people [in terms of] appropriate, timely colorectal cancer screening,” Dr. Johnson added.

The study was supported by the National Cancer Institute at the National Institutes of Health. Dr. Murphy has consulted for Freenome. Ms. Siegel and Dr. Johnson have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

New U.S. data show that the incidence of colorectal cancer (CRC) is on the rise among people aged 50–54 years, mirroring the well-documented increases in early-onset CRC in persons younger than 50 years.

“It’s likely that the factors contributing to CRC at age 50–54 years are the same factors that contribute to early-onset CRC, which has increased in parallel,” Caitlin Murphy, PhD, MPH, with the University of Texas Health Science Center at Houston, said in an interview.

“Many studies published in just the last year show that the well-known risk factors of CRC in older adults, such as obesity or sedentary lifestyle, are risk factors of CRC in younger adults. Growing evidence also suggests that early life exposures, or exposures in childhood, infancy, or even in the womb, play an important role,” Dr. Murphy said.

The study was published online October 28 in Gastroenterology .

Dr. Murphy and colleagues examined trends in age-specific CRC incidence rates for individuals aged 45–49, 50–54, and 55–59 years using the National Cancer Institute Surveillance, Epidemiology, and End Results (SEER) program.

During the period 1992–2018, there were a total of 101,609 cases of CRC among adults aged 45–59 years.

Further analysis showed that the CRC incidence rates rose from 23.4 to 34.0 per 100,000 among people aged 45–49 years and from 46.4 to 63.8 per 100,000 among those aged 50–54 years.

Conversely, incidence rates decreased among individuals aged 55–59 years, from 81.7 to 63.7 per 100,000 persons.

“Because of this opposing trend, or decreasing rates for age 55–59 years and increasing rates for age 50–54 years, incidence rates for the two age groups were nearly identical in 2016–18,” the researchers write.

They also found a “clear pattern” of increasing CRC incidence among adults in their early 50s, supporting the hypothesis that incidence rates increase at older ages as higher-risk generations mature, the researchers note.

These data send a clear message, Dr. Murphy told this news organization.

“Don’t delay colorectal cancer screening. Encourage on-time screening by discussing screening with patients before they reach the recommended age to initiate screening. The U.S. Preventive Services Task Force now recommends initiating average-risk screening at age 45 years,” Dr. Murphy said.
 

Concerning but not surprising

Rebecca Siegel, MPH, scientific director of Surveillance Research at the American Cancer Society, in Atlanta, who wasn’t involved in the study, said the results are “not surprising” and mirror the results of a 2017 study that showed that the incidence of CRC was increasing among individuals aged 50–54 years, as reported.

What’s “concerning,” Ms. Siegel said, is that people in this age group “have been recommended to be screened for CRC for decades. Hopefully, because the age to begin screening has been lowered from 50 to 45 years, this uptick will eventually flatten.”

David Johnson, MD, professor of medicine and chief of gastroenterology at Eastern Virginia Medical School, in Norfolk, Va., who also wasn’t involved in the study, said the increasing incidence is “concerning in this younger population, and similar to what is seen recently for the 45- to 49-year-old population.

“Recent data have linked dietary influences in the early development of precancerous colon polyps and colon cancer. The increased ingestion of processed foods and sugary beverages, most of which contain high fructose corn syrup, is very likely involved in the pathogenesis to explain these striking epidemiologic shifts,” Dr. Johnson said in an interview.

“These concerns will likely be compounded by the COVID-related adverse effects on people [in terms of] appropriate, timely colorectal cancer screening,” Dr. Johnson added.

The study was supported by the National Cancer Institute at the National Institutes of Health. Dr. Murphy has consulted for Freenome. Ms. Siegel and Dr. Johnson have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

New U.S. data show that the incidence of colorectal cancer (CRC) is on the rise among people aged 50–54 years, mirroring the well-documented increases in early-onset CRC in persons younger than 50 years.

“It’s likely that the factors contributing to CRC at age 50–54 years are the same factors that contribute to early-onset CRC, which has increased in parallel,” Caitlin Murphy, PhD, MPH, with the University of Texas Health Science Center at Houston, said in an interview.

“Many studies published in just the last year show that the well-known risk factors of CRC in older adults, such as obesity or sedentary lifestyle, are risk factors of CRC in younger adults. Growing evidence also suggests that early life exposures, or exposures in childhood, infancy, or even in the womb, play an important role,” Dr. Murphy said.

The study was published online October 28 in Gastroenterology .

Dr. Murphy and colleagues examined trends in age-specific CRC incidence rates for individuals aged 45–49, 50–54, and 55–59 years using the National Cancer Institute Surveillance, Epidemiology, and End Results (SEER) program.

During the period 1992–2018, there were a total of 101,609 cases of CRC among adults aged 45–59 years.

Further analysis showed that the CRC incidence rates rose from 23.4 to 34.0 per 100,000 among people aged 45–49 years and from 46.4 to 63.8 per 100,000 among those aged 50–54 years.

Conversely, incidence rates decreased among individuals aged 55–59 years, from 81.7 to 63.7 per 100,000 persons.

“Because of this opposing trend, or decreasing rates for age 55–59 years and increasing rates for age 50–54 years, incidence rates for the two age groups were nearly identical in 2016–18,” the researchers write.

They also found a “clear pattern” of increasing CRC incidence among adults in their early 50s, supporting the hypothesis that incidence rates increase at older ages as higher-risk generations mature, the researchers note.

These data send a clear message, Dr. Murphy told this news organization.

“Don’t delay colorectal cancer screening. Encourage on-time screening by discussing screening with patients before they reach the recommended age to initiate screening. The U.S. Preventive Services Task Force now recommends initiating average-risk screening at age 45 years,” Dr. Murphy said.
 

Concerning but not surprising

Rebecca Siegel, MPH, scientific director of Surveillance Research at the American Cancer Society, in Atlanta, who wasn’t involved in the study, said the results are “not surprising” and mirror the results of a 2017 study that showed that the incidence of CRC was increasing among individuals aged 50–54 years, as reported.

What’s “concerning,” Ms. Siegel said, is that people in this age group “have been recommended to be screened for CRC for decades. Hopefully, because the age to begin screening has been lowered from 50 to 45 years, this uptick will eventually flatten.”

David Johnson, MD, professor of medicine and chief of gastroenterology at Eastern Virginia Medical School, in Norfolk, Va., who also wasn’t involved in the study, said the increasing incidence is “concerning in this younger population, and similar to what is seen recently for the 45- to 49-year-old population.

“Recent data have linked dietary influences in the early development of precancerous colon polyps and colon cancer. The increased ingestion of processed foods and sugary beverages, most of which contain high fructose corn syrup, is very likely involved in the pathogenesis to explain these striking epidemiologic shifts,” Dr. Johnson said in an interview.

“These concerns will likely be compounded by the COVID-related adverse effects on people [in terms of] appropriate, timely colorectal cancer screening,” Dr. Johnson added.

The study was supported by the National Cancer Institute at the National Institutes of Health. Dr. Murphy has consulted for Freenome. Ms. Siegel and Dr. Johnson have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Even though younger patients with metastatic colorectal cancer (CRC) tend to be fitter and receive more intensive treatment compared with older patients, overall survival (OS) and progression-free survival (PFS) are remarkably similar between the two groups, according to a large phase 3 randomized trial.

“Colorectal cancer is on track to be the leading cause of cancer death in patients 20 to 49 by the year 2040, so it is important to understand survival in this population,” lead author Marla Lipsyc-Sharf, MD, Young-Onset Colorectal Cancer Center, Dana-Farber Cancer Center, Boston, said in an interview. “The most important point for oncologists to take away from our study is that the survival of young-onset colorectal cancer does not seem to be different from that in older patients.”

Previous studies comparing survival in younger versus older patients with metastatic CRC have yielded conflicting results. Dr. Lipsyc-Sharf and colleagues set out to clarify the literature in their large randomized study, published online on Oct. 12 in the Journal of the National Cancer Institute.

Dr. Lipsyc-Sharf and colleagues enrolled 2,326 eligible patients in the Cancer and Leukemia Group B (CALGB)/SWOG 80405 (Alliance) trial to evaluate the efficacy of chemotherapy plus a biologic to treat metastatic CRC. Slightly over 22% of participants (514 patients) were under age 50 at study enrollment, with a median age of 44.3 years vs. 62.5 in those patients older than 50.

The primary outcome was OS and secondary outcomes included PFS, defined as time from study entry until disease progression or death from any cause. At a follow-up of 6 years, median OS was 27.07 months in the young CRC cohort compared with 26.12 months in the older CRC cohort.

Similarly, median PFS in both younger and older cohorts was virtually identical at 10.87 months versus 10.55 months, respectively. Patients younger than age 35 did have a shorter median OS of 21.95 months and PFS of 9.33 months compared with 26.12 months and 10.55 months, respectively, for those 50 and older, but neither difference was significant.

The similar OS between the younger and older patients with metastatic CRC is “particularly interesting,” the authors noted, given that younger patients should, in theory, have done better than their older peers. Younger patients tend to have better overall health (less diabetes, greater physical activity), have more left-sided CRC, (which is associated with a better prognosis), and receive more intensive therapy.

“It’s not clear at this time why the young-onset CRC patients – despite having these more favorable characteristics – did not have improved survival compared to older patients,” Dr. Lipsyc-Sharf said.  

The authors suggest that this similar survival may be because younger patients tend to be diagnosed at more advanced stages, due to differences in underlying tumor biology, or due to other unknown factors. However, “additional investigation into the tumor biology, clinical characteristics, and optimal treatment of patients with [early onset] CRC is essential,” the authors concluded.

The work was supported by the National Cancer Institute of the National Institutes of Health and, in part, by Bristol Myers Squibb, Genentech, Pfizer, and Sanofi. Dr. Lipsyc-Sharf has reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Even though younger patients with metastatic colorectal cancer (CRC) tend to be fitter and receive more intensive treatment compared with older patients, overall survival (OS) and progression-free survival (PFS) are remarkably similar between the two groups, according to a large phase 3 randomized trial.

“Colorectal cancer is on track to be the leading cause of cancer death in patients 20 to 49 by the year 2040, so it is important to understand survival in this population,” lead author Marla Lipsyc-Sharf, MD, Young-Onset Colorectal Cancer Center, Dana-Farber Cancer Center, Boston, said in an interview. “The most important point for oncologists to take away from our study is that the survival of young-onset colorectal cancer does not seem to be different from that in older patients.”

Previous studies comparing survival in younger versus older patients with metastatic CRC have yielded conflicting results. Dr. Lipsyc-Sharf and colleagues set out to clarify the literature in their large randomized study, published online on Oct. 12 in the Journal of the National Cancer Institute.

Dr. Lipsyc-Sharf and colleagues enrolled 2,326 eligible patients in the Cancer and Leukemia Group B (CALGB)/SWOG 80405 (Alliance) trial to evaluate the efficacy of chemotherapy plus a biologic to treat metastatic CRC. Slightly over 22% of participants (514 patients) were under age 50 at study enrollment, with a median age of 44.3 years vs. 62.5 in those patients older than 50.

The primary outcome was OS and secondary outcomes included PFS, defined as time from study entry until disease progression or death from any cause. At a follow-up of 6 years, median OS was 27.07 months in the young CRC cohort compared with 26.12 months in the older CRC cohort.

Similarly, median PFS in both younger and older cohorts was virtually identical at 10.87 months versus 10.55 months, respectively. Patients younger than age 35 did have a shorter median OS of 21.95 months and PFS of 9.33 months compared with 26.12 months and 10.55 months, respectively, for those 50 and older, but neither difference was significant.

The similar OS between the younger and older patients with metastatic CRC is “particularly interesting,” the authors noted, given that younger patients should, in theory, have done better than their older peers. Younger patients tend to have better overall health (less diabetes, greater physical activity), have more left-sided CRC, (which is associated with a better prognosis), and receive more intensive therapy.

“It’s not clear at this time why the young-onset CRC patients – despite having these more favorable characteristics – did not have improved survival compared to older patients,” Dr. Lipsyc-Sharf said.  

The authors suggest that this similar survival may be because younger patients tend to be diagnosed at more advanced stages, due to differences in underlying tumor biology, or due to other unknown factors. However, “additional investigation into the tumor biology, clinical characteristics, and optimal treatment of patients with [early onset] CRC is essential,” the authors concluded.

The work was supported by the National Cancer Institute of the National Institutes of Health and, in part, by Bristol Myers Squibb, Genentech, Pfizer, and Sanofi. Dr. Lipsyc-Sharf has reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Even though younger patients with metastatic colorectal cancer (CRC) tend to be fitter and receive more intensive treatment compared with older patients, overall survival (OS) and progression-free survival (PFS) are remarkably similar between the two groups, according to a large phase 3 randomized trial.

“Colorectal cancer is on track to be the leading cause of cancer death in patients 20 to 49 by the year 2040, so it is important to understand survival in this population,” lead author Marla Lipsyc-Sharf, MD, Young-Onset Colorectal Cancer Center, Dana-Farber Cancer Center, Boston, said in an interview. “The most important point for oncologists to take away from our study is that the survival of young-onset colorectal cancer does not seem to be different from that in older patients.”

Previous studies comparing survival in younger versus older patients with metastatic CRC have yielded conflicting results. Dr. Lipsyc-Sharf and colleagues set out to clarify the literature in their large randomized study, published online on Oct. 12 in the Journal of the National Cancer Institute.

Dr. Lipsyc-Sharf and colleagues enrolled 2,326 eligible patients in the Cancer and Leukemia Group B (CALGB)/SWOG 80405 (Alliance) trial to evaluate the efficacy of chemotherapy plus a biologic to treat metastatic CRC. Slightly over 22% of participants (514 patients) were under age 50 at study enrollment, with a median age of 44.3 years vs. 62.5 in those patients older than 50.

The primary outcome was OS and secondary outcomes included PFS, defined as time from study entry until disease progression or death from any cause. At a follow-up of 6 years, median OS was 27.07 months in the young CRC cohort compared with 26.12 months in the older CRC cohort.

Similarly, median PFS in both younger and older cohorts was virtually identical at 10.87 months versus 10.55 months, respectively. Patients younger than age 35 did have a shorter median OS of 21.95 months and PFS of 9.33 months compared with 26.12 months and 10.55 months, respectively, for those 50 and older, but neither difference was significant.

The similar OS between the younger and older patients with metastatic CRC is “particularly interesting,” the authors noted, given that younger patients should, in theory, have done better than their older peers. Younger patients tend to have better overall health (less diabetes, greater physical activity), have more left-sided CRC, (which is associated with a better prognosis), and receive more intensive therapy.

“It’s not clear at this time why the young-onset CRC patients – despite having these more favorable characteristics – did not have improved survival compared to older patients,” Dr. Lipsyc-Sharf said.  

The authors suggest that this similar survival may be because younger patients tend to be diagnosed at more advanced stages, due to differences in underlying tumor biology, or due to other unknown factors. However, “additional investigation into the tumor biology, clinical characteristics, and optimal treatment of patients with [early onset] CRC is essential,” the authors concluded.

The work was supported by the National Cancer Institute of the National Institutes of Health and, in part, by Bristol Myers Squibb, Genentech, Pfizer, and Sanofi. Dr. Lipsyc-Sharf has reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.