Article

Key clinical point: The risk for psoriatic arthritis (PsA) was not higher among patients with psoriasis treated with acitretin vs disease-modifying antirheumatic drugs (DMARD), irrespective of the use of non-steroidal anti-inflammatory drugs (NSAID).

Major finding: The 5-year cumulative incidence rate for PsA was lower in the acitretin vs DMARD cohort (7.52% vs 9.93%; P = .005), with the incidence rates of PsA being markedly lower in the subgroup of patients receiving NSAID in the acitretin vs DMARD cohort (14.31% vs 23.83%; P = .008). Acitretin therapy showed no association with PsA development (hazard ratio 0.84; 95% CI 0.66-1.07).

Study details: Findings are from a retrospective cohort study including patients with psoriasis and without PsA who received either acitretin (n = 1948) or DMARD (n = 1948) for ≥ 30 days within a year.

Disclosures: This study was supported in part by the Taichung Veterans General Hospital. The authors declared no conflicts of interest.

Source: Lin TL et al. Psoriatic arthritis risk in psoriasis patients prescribed acitretin versus disease-modifying antirheumatic drugs: A nationwide cohort study. Rheumatology (Oxford). 2023 (Sep 1). doi: 10.1093/rheumatology/kead446

Key clinical point: The risk for psoriatic arthritis (PsA) was not higher among patients with psoriasis treated with acitretin vs disease-modifying antirheumatic drugs (DMARD), irrespective of the use of non-steroidal anti-inflammatory drugs (NSAID).

Major finding: The 5-year cumulative incidence rate for PsA was lower in the acitretin vs DMARD cohort (7.52% vs 9.93%; P = .005), with the incidence rates of PsA being markedly lower in the subgroup of patients receiving NSAID in the acitretin vs DMARD cohort (14.31% vs 23.83%; P = .008). Acitretin therapy showed no association with PsA development (hazard ratio 0.84; 95% CI 0.66-1.07).

Study details: Findings are from a retrospective cohort study including patients with psoriasis and without PsA who received either acitretin (n = 1948) or DMARD (n = 1948) for ≥ 30 days within a year.

Disclosures: This study was supported in part by the Taichung Veterans General Hospital. The authors declared no conflicts of interest.

Source: Lin TL et al. Psoriatic arthritis risk in psoriasis patients prescribed acitretin versus disease-modifying antirheumatic drugs: A nationwide cohort study. Rheumatology (Oxford). 2023 (Sep 1). doi: 10.1093/rheumatology/kead446

Key clinical point: The risk for psoriatic arthritis (PsA) was not higher among patients with psoriasis treated with acitretin vs disease-modifying antirheumatic drugs (DMARD), irrespective of the use of non-steroidal anti-inflammatory drugs (NSAID).

Major finding: The 5-year cumulative incidence rate for PsA was lower in the acitretin vs DMARD cohort (7.52% vs 9.93%; P = .005), with the incidence rates of PsA being markedly lower in the subgroup of patients receiving NSAID in the acitretin vs DMARD cohort (14.31% vs 23.83%; P = .008). Acitretin therapy showed no association with PsA development (hazard ratio 0.84; 95% CI 0.66-1.07).

Study details: Findings are from a retrospective cohort study including patients with psoriasis and without PsA who received either acitretin (n = 1948) or DMARD (n = 1948) for ≥ 30 days within a year.

Disclosures: This study was supported in part by the Taichung Veterans General Hospital. The authors declared no conflicts of interest.

Source: Lin TL et al. Psoriatic arthritis risk in psoriasis patients prescribed acitretin versus disease-modifying antirheumatic drugs: A nationwide cohort study. Rheumatology (Oxford). 2023 (Sep 1). doi: 10.1093/rheumatology/kead446

Key clinical point: Patients with psoriatic arthritis (PsA) showed similar adherence to secukinumab and ixekizumab as first-line or second-line interleukin (IL)-17A inhibitors, which indicates that the failure of a first-line IL-17A inhibitor therapy should not deter treatment with a second-line IL-17A inhibitors.

Major finding: Similar adherence to treatment was observed between first-line and second-line IL-17A inhibitor switchers and between second-line secukinumab and second-line ixekizumab switchers. Withdrawal reasons were similar for both first-line and second-line switchers when considering adverse events (14% for both); however, withdrawal due to failure of therapy was higher for the first-line vs second-line switchers (34% vs 18%).

Study details: Findings are from a population-based cohort study including patients with PsA who underwent prior treatment with ≥ 1 tumor necrosis factor inhibitor and switched to either first-line (n = 534) or second-line (n = 102) IL-17A inhibitors (ixekizumab or secukinumab).

Disclosures: This study was funded by the Oak Foundation. Five authors declared having ties with various sources, and three authors declared no conflicts of interest.

Source: Hansen RL et al. Adherence to therapy of ixekizumab and secukinumab in psoriatic arthritis patients using first- or second-line IL-17A inhibitor treatment: A Danish population-based cohort study. Rheumatology (Oxford). 2023 (Aug 30). doi: 10.1093/rheumatology/kead434

Key clinical point: Patients with psoriatic arthritis (PsA) showed similar adherence to secukinumab and ixekizumab as first-line or second-line interleukin (IL)-17A inhibitors, which indicates that the failure of a first-line IL-17A inhibitor therapy should not deter treatment with a second-line IL-17A inhibitors.

Major finding: Similar adherence to treatment was observed between first-line and second-line IL-17A inhibitor switchers and between second-line secukinumab and second-line ixekizumab switchers. Withdrawal reasons were similar for both first-line and second-line switchers when considering adverse events (14% for both); however, withdrawal due to failure of therapy was higher for the first-line vs second-line switchers (34% vs 18%).

Study details: Findings are from a population-based cohort study including patients with PsA who underwent prior treatment with ≥ 1 tumor necrosis factor inhibitor and switched to either first-line (n = 534) or second-line (n = 102) IL-17A inhibitors (ixekizumab or secukinumab).

Disclosures: This study was funded by the Oak Foundation. Five authors declared having ties with various sources, and three authors declared no conflicts of interest.

Source: Hansen RL et al. Adherence to therapy of ixekizumab and secukinumab in psoriatic arthritis patients using first- or second-line IL-17A inhibitor treatment: A Danish population-based cohort study. Rheumatology (Oxford). 2023 (Aug 30). doi: 10.1093/rheumatology/kead434

Key clinical point: Patients with psoriatic arthritis (PsA) showed similar adherence to secukinumab and ixekizumab as first-line or second-line interleukin (IL)-17A inhibitors, which indicates that the failure of a first-line IL-17A inhibitor therapy should not deter treatment with a second-line IL-17A inhibitors.

Major finding: Similar adherence to treatment was observed between first-line and second-line IL-17A inhibitor switchers and between second-line secukinumab and second-line ixekizumab switchers. Withdrawal reasons were similar for both first-line and second-line switchers when considering adverse events (14% for both); however, withdrawal due to failure of therapy was higher for the first-line vs second-line switchers (34% vs 18%).

Study details: Findings are from a population-based cohort study including patients with PsA who underwent prior treatment with ≥ 1 tumor necrosis factor inhibitor and switched to either first-line (n = 534) or second-line (n = 102) IL-17A inhibitors (ixekizumab or secukinumab).

Disclosures: This study was funded by the Oak Foundation. Five authors declared having ties with various sources, and three authors declared no conflicts of interest.

Source: Hansen RL et al. Adherence to therapy of ixekizumab and secukinumab in psoriatic arthritis patients using first- or second-line IL-17A inhibitor treatment: A Danish population-based cohort study. Rheumatology (Oxford). 2023 (Aug 30). doi: 10.1093/rheumatology/kead434

Key clinical point: Biological disease-modifying antirheumatic drugs (bDMARD) showed comparable efficacy in patients with psoriatic arthritis (PsA) with either low joint count (LJC) or high joint count (HJC), which highlights the feasibility of treatment escalation to bDMARD in symptomatic patients with LJC as well as in those with HJC.

Major finding: Patients with LJC (<3 tender or swollen joints) vs HJC (≥3 tender or swollen joints) showed similar treatment efficacy in terms of bDMARD retention (adjusted hazard ratio [aHR] 1.09; P = .63). Treatment discontinuation was unaffected by swollen or tender joint count status (aHR 1.12; P = .47).

Study details: Findings are from an observational cohort study that included 387 patients with PsA who had either LJC (n = 197) or HJC (n = 190) and received bDMARD.

Disclosures: This study was supported by Celgene International Sarl, Boudry, Switzerland. Five authors declared ties with various sources, whereas the other authors declared no conflicts of interest.

Source: Möller B et al for the Swiss Clinical Quality Management (SCQM) physicians, researchers and patients. Biological disease-modifying anti-rheumatic drugs are equally effective in psoriatic arthritis patients with low and high joint counts. Rheumatology (Oxford). 2023 (Sep 7). doi: 10.1093/rheumatology/kead455

Key clinical point: Biological disease-modifying antirheumatic drugs (bDMARD) showed comparable efficacy in patients with psoriatic arthritis (PsA) with either low joint count (LJC) or high joint count (HJC), which highlights the feasibility of treatment escalation to bDMARD in symptomatic patients with LJC as well as in those with HJC.

Major finding: Patients with LJC (<3 tender or swollen joints) vs HJC (≥3 tender or swollen joints) showed similar treatment efficacy in terms of bDMARD retention (adjusted hazard ratio [aHR] 1.09; P = .63). Treatment discontinuation was unaffected by swollen or tender joint count status (aHR 1.12; P = .47).

Study details: Findings are from an observational cohort study that included 387 patients with PsA who had either LJC (n = 197) or HJC (n = 190) and received bDMARD.

Disclosures: This study was supported by Celgene International Sarl, Boudry, Switzerland. Five authors declared ties with various sources, whereas the other authors declared no conflicts of interest.

Source: Möller B et al for the Swiss Clinical Quality Management (SCQM) physicians, researchers and patients. Biological disease-modifying anti-rheumatic drugs are equally effective in psoriatic arthritis patients with low and high joint counts. Rheumatology (Oxford). 2023 (Sep 7). doi: 10.1093/rheumatology/kead455

Key clinical point: Biological disease-modifying antirheumatic drugs (bDMARD) showed comparable efficacy in patients with psoriatic arthritis (PsA) with either low joint count (LJC) or high joint count (HJC), which highlights the feasibility of treatment escalation to bDMARD in symptomatic patients with LJC as well as in those with HJC.

Major finding: Patients with LJC (<3 tender or swollen joints) vs HJC (≥3 tender or swollen joints) showed similar treatment efficacy in terms of bDMARD retention (adjusted hazard ratio [aHR] 1.09; P = .63). Treatment discontinuation was unaffected by swollen or tender joint count status (aHR 1.12; P = .47).

Study details: Findings are from an observational cohort study that included 387 patients with PsA who had either LJC (n = 197) or HJC (n = 190) and received bDMARD.

Disclosures: This study was supported by Celgene International Sarl, Boudry, Switzerland. Five authors declared ties with various sources, whereas the other authors declared no conflicts of interest.

Source: Möller B et al for the Swiss Clinical Quality Management (SCQM) physicians, researchers and patients. Biological disease-modifying anti-rheumatic drugs are equally effective in psoriatic arthritis patients with low and high joint counts. Rheumatology (Oxford). 2023 (Sep 7). doi: 10.1093/rheumatology/kead455

Key clinical point: Guselkumab led to early reduction of inflammatory cytokines, which was sustained through 48 weeks, with subsequent improvements in clinical response in patients with active psoriatic arthritis (PsA) and an inadequate response to tumor necrosis factor inhibitors (TNFi-IR).

Major finding: Serum levels of interleukin (IL)-17A, IL-17F, IL-22, and serum amyloid A reduced significantly by week 4 and were sustained through week 48 in the guselkumab (P < .05) vs placebo group when compared with control individuals without PsA. Patients who achieved a clinical response to guselkumab at week 24 showed significant reduction in IL-6 levels at week 4 compared with non-responders (P < .05).

Study details: Findings are from the phase 3b COSMOS study including patients with active PsA and TNFi-IR who were randomly assigned to receive either guselkumab (n = 189) or placebo (n = 96) and compared with matched control individuals.

Disclosures: This study was sponsored by Janssen Research & Development (R&D), LLC, USA. Seven authors declared being employees of Janssen R&D, LLC, or others or owning stocks or stock options in Johnson & Johnson. Several authors declared ties with various sources, including Janssen.

Source: Schett G et al. Effect of guselkumab on serum biomarkers in patients with active psoriatic arthritis and inadequate response to tumor necrosis factor inhibitors: Results from the COSMOS phase 3b study. Arthritis Res Ther. 2023;25:150 (Aug 16, corrected Sep 15). doi: 10.1186/s13075-023-03125-4

Key clinical point: Guselkumab led to early reduction of inflammatory cytokines, which was sustained through 48 weeks, with subsequent improvements in clinical response in patients with active psoriatic arthritis (PsA) and an inadequate response to tumor necrosis factor inhibitors (TNFi-IR).

Major finding: Serum levels of interleukin (IL)-17A, IL-17F, IL-22, and serum amyloid A reduced significantly by week 4 and were sustained through week 48 in the guselkumab (P < .05) vs placebo group when compared with control individuals without PsA. Patients who achieved a clinical response to guselkumab at week 24 showed significant reduction in IL-6 levels at week 4 compared with non-responders (P < .05).

Study details: Findings are from the phase 3b COSMOS study including patients with active PsA and TNFi-IR who were randomly assigned to receive either guselkumab (n = 189) or placebo (n = 96) and compared with matched control individuals.

Disclosures: This study was sponsored by Janssen Research & Development (R&D), LLC, USA. Seven authors declared being employees of Janssen R&D, LLC, or others or owning stocks or stock options in Johnson & Johnson. Several authors declared ties with various sources, including Janssen.

Source: Schett G et al. Effect of guselkumab on serum biomarkers in patients with active psoriatic arthritis and inadequate response to tumor necrosis factor inhibitors: Results from the COSMOS phase 3b study. Arthritis Res Ther. 2023;25:150 (Aug 16, corrected Sep 15). doi: 10.1186/s13075-023-03125-4

Key clinical point: Guselkumab led to early reduction of inflammatory cytokines, which was sustained through 48 weeks, with subsequent improvements in clinical response in patients with active psoriatic arthritis (PsA) and an inadequate response to tumor necrosis factor inhibitors (TNFi-IR).

Major finding: Serum levels of interleukin (IL)-17A, IL-17F, IL-22, and serum amyloid A reduced significantly by week 4 and were sustained through week 48 in the guselkumab (P < .05) vs placebo group when compared with control individuals without PsA. Patients who achieved a clinical response to guselkumab at week 24 showed significant reduction in IL-6 levels at week 4 compared with non-responders (P < .05).

Study details: Findings are from the phase 3b COSMOS study including patients with active PsA and TNFi-IR who were randomly assigned to receive either guselkumab (n = 189) or placebo (n = 96) and compared with matched control individuals.

Disclosures: This study was sponsored by Janssen Research & Development (R&D), LLC, USA. Seven authors declared being employees of Janssen R&D, LLC, or others or owning stocks or stock options in Johnson & Johnson. Several authors declared ties with various sources, including Janssen.

Source: Schett G et al. Effect of guselkumab on serum biomarkers in patients with active psoriatic arthritis and inadequate response to tumor necrosis factor inhibitors: Results from the COSMOS phase 3b study. Arthritis Res Ther. 2023;25:150 (Aug 16, corrected Sep 15). doi: 10.1186/s13075-023-03125-4

To the Editor:

Cat scratch disease (CSD) is caused by Bartonella henselae and Bartonella clarridgeiae bacteria transferred from cats to humans that results in an inflamed inoculation site and tender lymphadenopathy. Pityriasis rosea (PR) and PR-like eruptions are self-limited, acute exanthems that have been associated with infections, vaccinations, and medications. We report a case of PR occurring in a 10-year-old girl with CSD, which may suggest an association between the 2 diseases.

A 10-year-old girl who was otherwise healthy presented in the winter with a rash of 5 days’ duration. Fourteen days prior to the rash, the patient reported being scratched by a new kitten and noted a pinpoint “puncture” on the left forearm that developed into a red papule over the following week. Seven days after the cat scratch, the patient experienced pain and swelling in the left axilla. Approximately 1 week after the onset of lymphadenopathy, the patient developed an asymptomatic rash that started with a large spot on the left chest, followed by smaller spots appearing over the next 2 days and spreading to the rest of the trunk. Four days after the rash onset, the patient experienced a mild headache, low-grade subjective fever, and chills. She denied any recent travel, bug bites, sore throat, and diarrhea. She was up-to-date on all vaccinations and had not received any vaccines preceding the symptoms. Physical examination revealed a 2-cm pink, scaly, thin plaque with a collarette of scale on the left upper chest (herald patch), along with multiple thin pink papules and small plaques with central scale on the trunk (Figure 1). A pustule with adjacent linear erosion was present on the left ventral forearm (Figure 2). The patient had a tender subcutaneous nodule in the left axilla as well as bilateral anterior and posterior cervical-chain subcutaneous tender nodules. There was no involvement of the palms, soles, or mucosae.

The patient was empirically treated for CSD with azithromycin (200 mg/5 mL), 404 mg on day 1 followed by 202 mg daily for 4 days. The rash was treated with hydrocortisone cream 2.5% twice daily for 2 weeks. A wound culture of the pustule on the left forearm was negative for neutrophils and organisms. Antibody serologies obtained 4 weeks after presentation were notable for an elevated B henselae IgG titer of 1:640, confirming the diagnosis of CSD. Following treatment with azithromycin and hydrocortisone, all of the patient’s symptoms resolved after 1 to 2 weeks.

Cat scratch disease is a zoonotic infection caused by the bacteria B henselae and the more recently described pathogen B clarridgeiae. Cat fleas spread these bacteria among cats, which subsequently inoculate the bacteria into humans through bites and scratches. The incidence of CSD in the United States is estimated to be 4.5 to 9.3 per 100,000 individuals in the outpatient setting and 0.19 to 0.86 per 100,000 individuals in the inpatient setting.¹ Geographic variance can occur based on flea populations, resulting in higher incidence in warm humid climates and lower incidence in mountainous arid climates. The incidence of CSD in the pediatric population is highest in children aged 5 to 9 years. A national representative survey (N=3011) from 2017 revealed that 37.2% of primary care providers had diagnosed CSD in the prior year.¹

Classic CSD presents as an erythematous papule at the inoculation site lasting days to weeks, with progression to tender lymphadenopathy lasting weeks to months. Fever, malaise, and chills also can be seen. Atypical CSD occurs in up to 24% of cases in immunocompetent patients.¹ Atypical and systemic presentations are varied and can include fever of unknown origin, neuroretinitis, uveitis, retinal vessel occlusion, encephalitis, hepatosplenic lesions, Parinaud oculoglandular syndrome, osteomyelitis, and endocarditis.^1,2 Atypical dermatologic presentations of CSD include maculopapular rash in 7% of cases and erythema nodosum in 2.5% of cases, as well as rare reports of cutaneous vasculitis, urticaria, immune thrombocytopenic purpura, and papuloedematous eruption.³ Treatment guidelines for CSD vary widely depending on the clinical presentation as well as the immunocompetence of the infected individual. Our patient had limited regional lymphadenopathy with no signs of dissemination or neurologic involvement and was successfully treated with a 5-day course of oral azithromycin (weight based, 10 mg/kg). More extensive disease such as hepatosplenic or neurologic CSD may require multiple antibiotics for up to 6 weeks. Alternative or additional antibiotics used for CSD include rifampin, trimethoprim-sulfamethoxazole, ciprofloxacin, doxycycline, gentamicin, and clarithromycin. Opinions vary as to whether all patients or just those with complicated infections warrant antibiotic therapy.^4-6

Pityriasis rosea is a self-limited acute exanthematous disease that is classically associated with a systemic reactivation of human herpesvirus (HHV) 6 and/or HHV-7. The incidence of PR is estimated to be 480 per 100,000 dermatologic patients. It is slightly more common in females and occurs most often in patients aged 10 to 35 years.⁷ Clinically, PR appears with the abrupt onset of a single erythematous scaly patch (termed the herald patch), followed by a secondary eruption of smaller erythematous scaly macules and patches along the trunk’s cleavage lines. The secondary eruption on the back is sometimes termed a Christmas or fir tree pattern.^7,8

In addition to the classic presentation of PR, there have been reports of numerous atypical clinical presentations. The herald patch, which classically presents on the trunk, also has been reported to present on the extremities; PR of the extremities is defined by lesions that appear as large scaly plaques on the extremities only. Inverse PR presents with lesions occurring in flexural areas and acral surfaces but not on the trunk. There also is an acral PR variant in which lesions appear only on the palms, wrists, and soles. Purpuric or hemorrhagic PR has been described and presents with purpura and petechiae with or without collarettes of scale in diffuse locations, including the palate. Oral PR presents more commonly in patients of color as erosions, ulcers, hemorrhagic lesions, bullae, or geographic tongue. Erythema multiforme–like PR appears with targetoid lesions on the trunk, face, neck, and arms without a history of herpes simplex virus infection. A large pear-shaped herald patch has been reported and characterizes the gigantea PR of Darier variant. Irritated PR occurs with typical PR findings, but afflicted patients report severe pain and burning with diaphoresis. Relapsing PR can occur within 1 year of a prior episode of PR and presents without a herald patch. Persistent PR is defined by PR lasting more than 3 months, and most reported cases have included oral lesions. Finally, other PR variants that have been described include urticarial, papular, follicular, vesicular, and hypopigmented types.^7-9

Furthermore, there have been reports of multiple atypical presentations occurring simultaneously in the same patient.¹⁰ Although PR classically has been associated with HHV-6 and/or HHV-7 reactivation, it has been reported with a few other clinical situations and conditions. Pityriasislike eruption specifically refers to an exanthem secondary to drugs or vaccination that resembles PR but shows clinical differences, including diffuse and confluent dusky-red macules and/or plaques with or without desquamation on the trunk, extremities, and face. Drugs that have been implicated as triggers include ACE inhibitors, gold, isotretinoin, nonsteroidal anti-inflammatory agents, omeprazole, terbinafine, and tyrosine kinase inhibitors. Smallpox, tuberculosis, poliomyelitis, influenza, diphtheria, tetanus, hepatitis B virus, pneumococcus, papillomavirus, yellow fever, and pertussis vaccinations also have been associated with PR.^7,11,12 Additionally, PR has been reported to occur with active systemic infections, specifically H1N1 influenza, though it is rare.¹³ Because of its self-limited course, treatment of PR most often involves only reassurance. Topical corticosteroids may be appropriate for pruritus.^7,8

Pediatric health care providers including dermatologists should be familiar with both CSD and PR because they are common diseases that more often are encountered in the pediatric population. We present a unique case of CSD presenting with concurrent PR, which highlights a potential new etiology for PR and a rare cutaneous manifestation of CSD. Further investigation into a possible relationship between CSD and PR may be warranted. Patients with any signs and symptoms of fever, tender lymphadenopathy, worsening rash, or exposure to cats warrant a thorough history and physical examination to ensure that neither entity is overlooked.

To the Editor:

Cat scratch disease (CSD) is caused by Bartonella henselae and Bartonella clarridgeiae bacteria transferred from cats to humans that results in an inflamed inoculation site and tender lymphadenopathy. Pityriasis rosea (PR) and PR-like eruptions are self-limited, acute exanthems that have been associated with infections, vaccinations, and medications. We report a case of PR occurring in a 10-year-old girl with CSD, which may suggest an association between the 2 diseases.

A 10-year-old girl who was otherwise healthy presented in the winter with a rash of 5 days’ duration. Fourteen days prior to the rash, the patient reported being scratched by a new kitten and noted a pinpoint “puncture” on the left forearm that developed into a red papule over the following week. Seven days after the cat scratch, the patient experienced pain and swelling in the left axilla. Approximately 1 week after the onset of lymphadenopathy, the patient developed an asymptomatic rash that started with a large spot on the left chest, followed by smaller spots appearing over the next 2 days and spreading to the rest of the trunk. Four days after the rash onset, the patient experienced a mild headache, low-grade subjective fever, and chills. She denied any recent travel, bug bites, sore throat, and diarrhea. She was up-to-date on all vaccinations and had not received any vaccines preceding the symptoms. Physical examination revealed a 2-cm pink, scaly, thin plaque with a collarette of scale on the left upper chest (herald patch), along with multiple thin pink papules and small plaques with central scale on the trunk (Figure 1). A pustule with adjacent linear erosion was present on the left ventral forearm (Figure 2). The patient had a tender subcutaneous nodule in the left axilla as well as bilateral anterior and posterior cervical-chain subcutaneous tender nodules. There was no involvement of the palms, soles, or mucosae.

The patient was empirically treated for CSD with azithromycin (200 mg/5 mL), 404 mg on day 1 followed by 202 mg daily for 4 days. The rash was treated with hydrocortisone cream 2.5% twice daily for 2 weeks. A wound culture of the pustule on the left forearm was negative for neutrophils and organisms. Antibody serologies obtained 4 weeks after presentation were notable for an elevated B henselae IgG titer of 1:640, confirming the diagnosis of CSD. Following treatment with azithromycin and hydrocortisone, all of the patient’s symptoms resolved after 1 to 2 weeks.

Cat scratch disease is a zoonotic infection caused by the bacteria B henselae and the more recently described pathogen B clarridgeiae. Cat fleas spread these bacteria among cats, which subsequently inoculate the bacteria into humans through bites and scratches. The incidence of CSD in the United States is estimated to be 4.5 to 9.3 per 100,000 individuals in the outpatient setting and 0.19 to 0.86 per 100,000 individuals in the inpatient setting.¹ Geographic variance can occur based on flea populations, resulting in higher incidence in warm humid climates and lower incidence in mountainous arid climates. The incidence of CSD in the pediatric population is highest in children aged 5 to 9 years. A national representative survey (N=3011) from 2017 revealed that 37.2% of primary care providers had diagnosed CSD in the prior year.¹

Classic CSD presents as an erythematous papule at the inoculation site lasting days to weeks, with progression to tender lymphadenopathy lasting weeks to months. Fever, malaise, and chills also can be seen. Atypical CSD occurs in up to 24% of cases in immunocompetent patients.¹ Atypical and systemic presentations are varied and can include fever of unknown origin, neuroretinitis, uveitis, retinal vessel occlusion, encephalitis, hepatosplenic lesions, Parinaud oculoglandular syndrome, osteomyelitis, and endocarditis.^1,2 Atypical dermatologic presentations of CSD include maculopapular rash in 7% of cases and erythema nodosum in 2.5% of cases, as well as rare reports of cutaneous vasculitis, urticaria, immune thrombocytopenic purpura, and papuloedematous eruption.³ Treatment guidelines for CSD vary widely depending on the clinical presentation as well as the immunocompetence of the infected individual. Our patient had limited regional lymphadenopathy with no signs of dissemination or neurologic involvement and was successfully treated with a 5-day course of oral azithromycin (weight based, 10 mg/kg). More extensive disease such as hepatosplenic or neurologic CSD may require multiple antibiotics for up to 6 weeks. Alternative or additional antibiotics used for CSD include rifampin, trimethoprim-sulfamethoxazole, ciprofloxacin, doxycycline, gentamicin, and clarithromycin. Opinions vary as to whether all patients or just those with complicated infections warrant antibiotic therapy.^4-6

Pityriasis rosea is a self-limited acute exanthematous disease that is classically associated with a systemic reactivation of human herpesvirus (HHV) 6 and/or HHV-7. The incidence of PR is estimated to be 480 per 100,000 dermatologic patients. It is slightly more common in females and occurs most often in patients aged 10 to 35 years.⁷ Clinically, PR appears with the abrupt onset of a single erythematous scaly patch (termed the herald patch), followed by a secondary eruption of smaller erythematous scaly macules and patches along the trunk’s cleavage lines. The secondary eruption on the back is sometimes termed a Christmas or fir tree pattern.^7,8

In addition to the classic presentation of PR, there have been reports of numerous atypical clinical presentations. The herald patch, which classically presents on the trunk, also has been reported to present on the extremities; PR of the extremities is defined by lesions that appear as large scaly plaques on the extremities only. Inverse PR presents with lesions occurring in flexural areas and acral surfaces but not on the trunk. There also is an acral PR variant in which lesions appear only on the palms, wrists, and soles. Purpuric or hemorrhagic PR has been described and presents with purpura and petechiae with or without collarettes of scale in diffuse locations, including the palate. Oral PR presents more commonly in patients of color as erosions, ulcers, hemorrhagic lesions, bullae, or geographic tongue. Erythema multiforme–like PR appears with targetoid lesions on the trunk, face, neck, and arms without a history of herpes simplex virus infection. A large pear-shaped herald patch has been reported and characterizes the gigantea PR of Darier variant. Irritated PR occurs with typical PR findings, but afflicted patients report severe pain and burning with diaphoresis. Relapsing PR can occur within 1 year of a prior episode of PR and presents without a herald patch. Persistent PR is defined by PR lasting more than 3 months, and most reported cases have included oral lesions. Finally, other PR variants that have been described include urticarial, papular, follicular, vesicular, and hypopigmented types.^7-9

Furthermore, there have been reports of multiple atypical presentations occurring simultaneously in the same patient.¹⁰ Although PR classically has been associated with HHV-6 and/or HHV-7 reactivation, it has been reported with a few other clinical situations and conditions. Pityriasislike eruption specifically refers to an exanthem secondary to drugs or vaccination that resembles PR but shows clinical differences, including diffuse and confluent dusky-red macules and/or plaques with or without desquamation on the trunk, extremities, and face. Drugs that have been implicated as triggers include ACE inhibitors, gold, isotretinoin, nonsteroidal anti-inflammatory agents, omeprazole, terbinafine, and tyrosine kinase inhibitors. Smallpox, tuberculosis, poliomyelitis, influenza, diphtheria, tetanus, hepatitis B virus, pneumococcus, papillomavirus, yellow fever, and pertussis vaccinations also have been associated with PR.^7,11,12 Additionally, PR has been reported to occur with active systemic infections, specifically H1N1 influenza, though it is rare.¹³ Because of its self-limited course, treatment of PR most often involves only reassurance. Topical corticosteroids may be appropriate for pruritus.^7,8

Pediatric health care providers including dermatologists should be familiar with both CSD and PR because they are common diseases that more often are encountered in the pediatric population. We present a unique case of CSD presenting with concurrent PR, which highlights a potential new etiology for PR and a rare cutaneous manifestation of CSD. Further investigation into a possible relationship between CSD and PR may be warranted. Patients with any signs and symptoms of fever, tender lymphadenopathy, worsening rash, or exposure to cats warrant a thorough history and physical examination to ensure that neither entity is overlooked.

To the Editor:

Cat scratch disease (CSD) is caused by Bartonella henselae and Bartonella clarridgeiae bacteria transferred from cats to humans that results in an inflamed inoculation site and tender lymphadenopathy. Pityriasis rosea (PR) and PR-like eruptions are self-limited, acute exanthems that have been associated with infections, vaccinations, and medications. We report a case of PR occurring in a 10-year-old girl with CSD, which may suggest an association between the 2 diseases.

A 10-year-old girl who was otherwise healthy presented in the winter with a rash of 5 days’ duration. Fourteen days prior to the rash, the patient reported being scratched by a new kitten and noted a pinpoint “puncture” on the left forearm that developed into a red papule over the following week. Seven days after the cat scratch, the patient experienced pain and swelling in the left axilla. Approximately 1 week after the onset of lymphadenopathy, the patient developed an asymptomatic rash that started with a large spot on the left chest, followed by smaller spots appearing over the next 2 days and spreading to the rest of the trunk. Four days after the rash onset, the patient experienced a mild headache, low-grade subjective fever, and chills. She denied any recent travel, bug bites, sore throat, and diarrhea. She was up-to-date on all vaccinations and had not received any vaccines preceding the symptoms. Physical examination revealed a 2-cm pink, scaly, thin plaque with a collarette of scale on the left upper chest (herald patch), along with multiple thin pink papules and small plaques with central scale on the trunk (Figure 1). A pustule with adjacent linear erosion was present on the left ventral forearm (Figure 2). The patient had a tender subcutaneous nodule in the left axilla as well as bilateral anterior and posterior cervical-chain subcutaneous tender nodules. There was no involvement of the palms, soles, or mucosae.

The patient was empirically treated for CSD with azithromycin (200 mg/5 mL), 404 mg on day 1 followed by 202 mg daily for 4 days. The rash was treated with hydrocortisone cream 2.5% twice daily for 2 weeks. A wound culture of the pustule on the left forearm was negative for neutrophils and organisms. Antibody serologies obtained 4 weeks after presentation were notable for an elevated B henselae IgG titer of 1:640, confirming the diagnosis of CSD. Following treatment with azithromycin and hydrocortisone, all of the patient’s symptoms resolved after 1 to 2 weeks.

Cat scratch disease is a zoonotic infection caused by the bacteria B henselae and the more recently described pathogen B clarridgeiae. Cat fleas spread these bacteria among cats, which subsequently inoculate the bacteria into humans through bites and scratches. The incidence of CSD in the United States is estimated to be 4.5 to 9.3 per 100,000 individuals in the outpatient setting and 0.19 to 0.86 per 100,000 individuals in the inpatient setting.¹ Geographic variance can occur based on flea populations, resulting in higher incidence in warm humid climates and lower incidence in mountainous arid climates. The incidence of CSD in the pediatric population is highest in children aged 5 to 9 years. A national representative survey (N=3011) from 2017 revealed that 37.2% of primary care providers had diagnosed CSD in the prior year.¹

Classic CSD presents as an erythematous papule at the inoculation site lasting days to weeks, with progression to tender lymphadenopathy lasting weeks to months. Fever, malaise, and chills also can be seen. Atypical CSD occurs in up to 24% of cases in immunocompetent patients.¹ Atypical and systemic presentations are varied and can include fever of unknown origin, neuroretinitis, uveitis, retinal vessel occlusion, encephalitis, hepatosplenic lesions, Parinaud oculoglandular syndrome, osteomyelitis, and endocarditis.^1,2 Atypical dermatologic presentations of CSD include maculopapular rash in 7% of cases and erythema nodosum in 2.5% of cases, as well as rare reports of cutaneous vasculitis, urticaria, immune thrombocytopenic purpura, and papuloedematous eruption.³ Treatment guidelines for CSD vary widely depending on the clinical presentation as well as the immunocompetence of the infected individual. Our patient had limited regional lymphadenopathy with no signs of dissemination or neurologic involvement and was successfully treated with a 5-day course of oral azithromycin (weight based, 10 mg/kg). More extensive disease such as hepatosplenic or neurologic CSD may require multiple antibiotics for up to 6 weeks. Alternative or additional antibiotics used for CSD include rifampin, trimethoprim-sulfamethoxazole, ciprofloxacin, doxycycline, gentamicin, and clarithromycin. Opinions vary as to whether all patients or just those with complicated infections warrant antibiotic therapy.^4-6

Pityriasis rosea is a self-limited acute exanthematous disease that is classically associated with a systemic reactivation of human herpesvirus (HHV) 6 and/or HHV-7. The incidence of PR is estimated to be 480 per 100,000 dermatologic patients. It is slightly more common in females and occurs most often in patients aged 10 to 35 years.⁷ Clinically, PR appears with the abrupt onset of a single erythematous scaly patch (termed the herald patch), followed by a secondary eruption of smaller erythematous scaly macules and patches along the trunk’s cleavage lines. The secondary eruption on the back is sometimes termed a Christmas or fir tree pattern.^7,8

In addition to the classic presentation of PR, there have been reports of numerous atypical clinical presentations. The herald patch, which classically presents on the trunk, also has been reported to present on the extremities; PR of the extremities is defined by lesions that appear as large scaly plaques on the extremities only. Inverse PR presents with lesions occurring in flexural areas and acral surfaces but not on the trunk. There also is an acral PR variant in which lesions appear only on the palms, wrists, and soles. Purpuric or hemorrhagic PR has been described and presents with purpura and petechiae with or without collarettes of scale in diffuse locations, including the palate. Oral PR presents more commonly in patients of color as erosions, ulcers, hemorrhagic lesions, bullae, or geographic tongue. Erythema multiforme–like PR appears with targetoid lesions on the trunk, face, neck, and arms without a history of herpes simplex virus infection. A large pear-shaped herald patch has been reported and characterizes the gigantea PR of Darier variant. Irritated PR occurs with typical PR findings, but afflicted patients report severe pain and burning with diaphoresis. Relapsing PR can occur within 1 year of a prior episode of PR and presents without a herald patch. Persistent PR is defined by PR lasting more than 3 months, and most reported cases have included oral lesions. Finally, other PR variants that have been described include urticarial, papular, follicular, vesicular, and hypopigmented types.^7-9

Furthermore, there have been reports of multiple atypical presentations occurring simultaneously in the same patient.¹⁰ Although PR classically has been associated with HHV-6 and/or HHV-7 reactivation, it has been reported with a few other clinical situations and conditions. Pityriasislike eruption specifically refers to an exanthem secondary to drugs or vaccination that resembles PR but shows clinical differences, including diffuse and confluent dusky-red macules and/or plaques with or without desquamation on the trunk, extremities, and face. Drugs that have been implicated as triggers include ACE inhibitors, gold, isotretinoin, nonsteroidal anti-inflammatory agents, omeprazole, terbinafine, and tyrosine kinase inhibitors. Smallpox, tuberculosis, poliomyelitis, influenza, diphtheria, tetanus, hepatitis B virus, pneumococcus, papillomavirus, yellow fever, and pertussis vaccinations also have been associated with PR.^7,11,12 Additionally, PR has been reported to occur with active systemic infections, specifically H1N1 influenza, though it is rare.¹³ Because of its self-limited course, treatment of PR most often involves only reassurance. Topical corticosteroids may be appropriate for pruritus.^7,8

Pediatric health care providers including dermatologists should be familiar with both CSD and PR because they are common diseases that more often are encountered in the pediatric population. We present a unique case of CSD presenting with concurrent PR, which highlights a potential new etiology for PR and a rare cutaneous manifestation of CSD. Further investigation into a possible relationship between CSD and PR may be warranted. Patients with any signs and symptoms of fever, tender lymphadenopathy, worsening rash, or exposure to cats warrant a thorough history and physical examination to ensure that neither entity is overlooked.

Sirisha Manyam, DO, eagerly looks forward to attending Association of VA Hematology and Oncology (AVAHO) 2023 and participating in discussion concerning two central topics: women's health and clinician wellness. Recognizing and meeting the distinctive stressors faced by healthcare workers, which have produced alarming rates of burnout, is an apt priority for Veterans Affairs systems, Dr Maryam suggests, and one which is paralleled by the need to engage the unique challenges faced by women, specifically the cluster of considerations surrounding breast cancer treatment.

Sirisha Manyam, DO, eagerly looks forward to attending Association of VA Hematology and Oncology (AVAHO) 2023 and participating in discussion concerning two central topics: women's health and clinician wellness. Recognizing and meeting the distinctive stressors faced by healthcare workers, which have produced alarming rates of burnout, is an apt priority for Veterans Affairs systems, Dr Maryam suggests, and one which is paralleled by the need to engage the unique challenges faced by women, specifically the cluster of considerations surrounding breast cancer treatment.

Sirisha Manyam, DO, eagerly looks forward to attending Association of VA Hematology and Oncology (AVAHO) 2023 and participating in discussion concerning two central topics: women's health and clinician wellness. Recognizing and meeting the distinctive stressors faced by healthcare workers, which have produced alarming rates of burnout, is an apt priority for Veterans Affairs systems, Dr Maryam suggests, and one which is paralleled by the need to engage the unique challenges faced by women, specifically the cluster of considerations surrounding breast cancer treatment.

Timothy O'Brien, MD, shares his expectations for the upcoming 2023 AVAHO conference. Dr O'Brien highlights four key areas of interest: networking with providers from other VA systems; creating more clinical trial opportunities; exploring educational sessions on topics like AI in oncology and geriatric oncology; and fostering team building within the local VA group. With an area of focus in malignant hematology, particularly multiple myeloma, Dr O'Brien sees learning opportunities within the education sessions on geriatric oncology. Considering that the average age of patients with multiple myeloma at his institution is 70 years, he looks forward to gaining valuable strategies for geriatric assessment.

Timothy O'Brien, MD, shares his expectations for the upcoming 2023 AVAHO conference. Dr O'Brien highlights four key areas of interest: networking with providers from other VA systems; creating more clinical trial opportunities; exploring educational sessions on topics like AI in oncology and geriatric oncology; and fostering team building within the local VA group. With an area of focus in malignant hematology, particularly multiple myeloma, Dr O'Brien sees learning opportunities within the education sessions on geriatric oncology. Considering that the average age of patients with multiple myeloma at his institution is 70 years, he looks forward to gaining valuable strategies for geriatric assessment.

Timothy O'Brien, MD, shares his expectations for the upcoming 2023 AVAHO conference. Dr O'Brien highlights four key areas of interest: networking with providers from other VA systems; creating more clinical trial opportunities; exploring educational sessions on topics like AI in oncology and geriatric oncology; and fostering team building within the local VA group. With an area of focus in malignant hematology, particularly multiple myeloma, Dr O'Brien sees learning opportunities within the education sessions on geriatric oncology. Considering that the average age of patients with multiple myeloma at his institution is 70 years, he looks forward to gaining valuable strategies for geriatric assessment.

Soo Park, MD, discusses her expectations for the upcoming 2023 AVAHO meeting in Chicago. Two items on the agenda particularly stand out: the role of artificial intelligence (AI) in oncology and the importance of cancer patient navigation. Dr Park acknowledges AI's potential to transform cancer diagnostics and drug discovery, particularly in aiding molecular profiling. Additionally, she highlights the value of cancer patient navigators in optimizing veteran care, particularly in the setting of geriatric oncology.

Soo Park, MD, discusses her expectations for the upcoming 2023 AVAHO meeting in Chicago. Two items on the agenda particularly stand out: the role of artificial intelligence (AI) in oncology and the importance of cancer patient navigation. Dr Park acknowledges AI's potential to transform cancer diagnostics and drug discovery, particularly in aiding molecular profiling. Additionally, she highlights the value of cancer patient navigators in optimizing veteran care, particularly in the setting of geriatric oncology.

Soo Park, MD, discusses her expectations for the upcoming 2023 AVAHO meeting in Chicago. Two items on the agenda particularly stand out: the role of artificial intelligence (AI) in oncology and the importance of cancer patient navigation. Dr Park acknowledges AI's potential to transform cancer diagnostics and drug discovery, particularly in aiding molecular profiling. Additionally, she highlights the value of cancer patient navigators in optimizing veteran care, particularly in the setting of geriatric oncology.

Endometrial ablation continues to be performed in significant numbers in the United States, with an estimated 500,000 cases annually. Several nonresectoscopic endometrial ablation devices have been approved for use, and some are now discontinued. The newest endometrial ablation therapy to gain US Food and Drug Administration (FDA) approval and to have published outcomes is the Cerene cryotherapy ablation device (Channel Medsystems, Inc). The results of 36-month outcomes from the CLARITY study were published last year, and we have chosen to review these long-term data in addition to that of a second study in which investigators assessed the ability to access the endometrial cavity postcryoablation. We believe this is important because of concerns about the inability to access the endometrial cavity after ablation, as well as the potential for delay in the diagnosis of endometrial cancer. It is interesting that 2 publications simultaneously reviewed the incidence of endometrial cancer after endometrial ablation within the past 12 months, and we therefore present those findings as they provide valuable information.

Our second focus in this year’s Update is to provide additional information about the burgeoning data on gonadotropin-releasing hormone (GnRH) antagonists. We review evidence on linzagolix from the PRIMROSE 1 and PRIMROSE 2 trials and longer-term data on relugolix combination therapy for symptomatic uterine fibroids.

Three-year follow-up after endometrial cryoablation with the Cerene device found high patient satisfaction, low hysterectomy rates

Curlin HL, Cintron LC, Anderson TL. A prospective, multicenter, clinical trial evaluating the safety and effectiveness of the Cerene device to treat heavy menstrual bleeding. J Minim Invasive Gynecol. 2021;28;899-908.

Curlin HL, Anderson TL. Endometrial cryoablation for the treatment of heavy menstrual bleeding: 36-month outcomes from the CLARITY study. Int J Womens Health. 2022;14:1083-1092.
 

The 12-month data on the clinical safety and effectiveness of the Cerene cryoablation device were published in 2021 in the CLARITY trial.¹ The 36-month outcomes were published in 2022 and showed sustained clinical effects through month 36 with a low risk of adverse outcomes.² The interesting aspect of this trial is that although the amenorrhea rate was relatively low at 12 months (6.5%), it continued to remain relatively low compared with rates found with other devices, but the amenorrhea rate increased at 36 months (14.4%). This was the percentage of patients who reported, “I no longer get my period.”

Patient satisfaction was high

Despite a relatively low amenorrhea rate, study participants had a high satisfaction rate and a low 3-year hysterectomy rate. Eighty-five percent of the participants were satisfied or very satisfied, and the cumulative hysterectomy rate was low at 5%.

The overall reintervention rate was 8.7%. Six patients were treated with medications, 2 patients underwent repeat endometrial ablation, 1 received a levonorgestrel-releasing intrauterine device, and 12 underwent hysterectomy.

At 36 months, 201 of the original 242 participants were available for assessment. Unfortunately, 5 pregnancies were reported through the 6-month posttreatment period, which emphasizes the importance of having reliable contraception. However, there were no reports of hematometra or postablation tubal sterilization syndrome (PATSS).

Effect on bleeding was long term

The main finding of the CLARITY study is that the Cerene cryoablation device appears to have a relatively stable effect on bleedingfor the first 3 years after therapy, with minimal risk of hematometra and PATSS. What we find interesting is that despite Cerene cryoablation having one of the lowest amenorrhea rates, it not only had a satisfaction rate in line with that of other devices but also had a low hysterectomy rate—only 5%—at 3 years.

The study authors pointed out that there is a lack of scarring within the endometrial cavity with the Cerene device. Some may find less endometrial scarring worth a low amenorrhea rate in the context of a favorable satisfaction rate. This begs the question, how well can the endometrial cavity be assessed? For answers, keep reading.

Can the endometrial cavity be reliably accessed after Cerene cryoablation?

Endometrial ablation has been associated with intracavitary scarring that results in hematometra, PATSS, and a concern for difficulty in performing an adequate endometrial assessment in patients who develop postablation abnormal uterine bleeding.

In a prospective study, 230 participants (of an initial 242) treated with Cerene cyroablation were studied with hysteroscopic evaluation of the endometrial cavity 12 months after surgery.³ The uterine cavity was accessible in 98.7% of participants. The cavity was not accessible in 3 participants due to pain or cervical stenosis.

Visualization of the uterine cavity was possible by hysteroscopy in 92.7% of study participants (204 of 220), with 1 or both tubal ostia identified in 89.2%. Both tubal ostia were visible in 78.4% and 1 ostium was visible in 10.8%. The cavity was not visualized in 16 of the 220 patients (7.2%) due to intrauterine adhesions, technical difficulties, or menstruation. Also of note, 97 of the 230 participants available at the 12-month follow-up had undergone tubal sterilization before cryoablation and none reported symptoms of PATSS or hematometra, which may be considered surrogate markers for adhesions.

Continue to: Tissue effects differ with ablation technique...

Tissue effects differ with ablation technique

The study authors suggested that different tissue effects occur with freezing compared with heating ablation techniques. With freezing, over weeks to months the chronic inflammatory tissue is eventually replaced by a fibrous scar of collagen, with some preservation of the collagen matrix during tissue repair. This may be different from the charring and boiling of heated tissue that results in architectural tissue loss and may interfere with wound repair and tissue remodeling. Although the incidence of postoperative adhesions after endometrial ablation is not well studied, it is encouraging that most patients who received cryoablation with the Cerene device were able to undergo an evaluation of the endometrium without general anesthesia.

Key takeaway

The main idea from this study is that the endometrium can be assessed by office hysteroscopy in most patients who undergo cryoablation with the Cerene device. This may have advantages in terms of reducing the risk of PATSS and hematometra, and it may allow easier evaluation of the endometrium for patients who have postablation abnormal uterine bleeding. This begs the question, does intrauterine scarring influence the detection of endometrial cancer? For answers, keep reading.

Does endometrial ablation place a patient at higher risk for a delay in the diagnosis of endometrial cancer?

Radestad AF, Dahm-Kahler P, Holmberg E, et al. Long-term incidence of endometrial cancer after endometrial resection and ablation: a population based Swedish gynecologic cancer group (SweGCG) study. Acta Obstet Gynecol Scand. 2022;101:923-930.
 

Oderkerk TJ, van de Kar MRD, Cornel KMC, et al. Endometrial cancer after endometrial ablation: a systematic review. Int J Gynecol Cancer. 2022;32:1555-1560.

The answer to this question appears to be no, based on 2 different types of studies. One study was a 20-year population database review from Sweden,⁴ and the other was a systematic review of 11 cohort studies.⁵

Population-based study findings

The data from the Swedish population database is interesting because since 1994 all Swedish citizens have been allocated a unique personal identification number at birth or immigration that enables official registries and research. In reviewing their data from 1997 through 2017, Radestad and colleagues compared transcervical resection of the endometrium (TCRE) and other forms of endometrial ablation against the Swedish National Patient Register data for endometrial cancer.⁴ They found no increase in the incidence of endometrial cancer after TCRE (0.3%) or after endometrial ablation (0.02%) and suggested a significantly lower incidence of endometrial cancer after endometrial ablation.

This study is beneficial because it is the largest study to explore the long-term incidence of endometrial cancer after TCRE and endometrial ablation. The investigators hypothesized that, as an explanation for the difference between rates, ablation may burn deeper into the myometrium and treat adenomyosis compared with TCRE. However, they also were cautious to note that although this was a 20-year study, the incidence of endometrial carcinoma likely will reach a peak in the next few years.

Systematic review conclusions

In the systematic review, out of 890 publications from the authors’ database search, 11 articles were eventually included for review.⁵ A total of 29,102 patients with endometrial ablation were followed for a period of up to 25 years, and the incidence of endometrial cancer after endometrial ablation varied from 0.0% to 1.6%. A total of 38 cases of endometrial cancer after endometrial ablation have been described in the literature. Of those cases, bleeding was the most common presenting symptom of the disease. Endometrial sampling was successful in 89% of cases, and in 90% of cases, histological exam showed an early-stage endometrial adenocarcinoma.

Based on their review, the authors concluded that the incidence of endometrial cancer was not increased in patients who received endometrial ablation, and more importantly, there was no apparent delay in the diagnosis of endometrial cancer after endometrial ablation. They further suggested that diagnostic management with endometrial sampling did not appear to be a barrier.

Longer-term data for relugolix combination treatment of symptomatic uterine bleeding from fibroids shows sustained efficacy

Al-Hendy A, Lukes AS, Poindexter AN, et al. Long-term relugolix combination therapy for symptomatic uterine leiomyomas. Obstet Gynecol. 2022;140:920-930.

Relugolix combination therapy was previously reported to be effective for the treatment of fibroids based on the 24-week trials LIBERTY 1 and LIBERTY 2. We now have information about longer-term therapy for up to 52 weeks of treatment.⁶

Relugolix combination therapy is a once-daily single tablet for the treatment of heavy menstrual bleeding thought to be due to uterine fibroids in premenopausal women. It is comprised of relugolix 40 mg (a GnRH antagonist), estradiol 1.0 mg, and norethindrone acetate 0.5 mg.

Continue to: Extension study showed sustained efficacy...

The study by Al-Hendy and colleagues showed that the relugolix combination not only was well tolerated but also that there was sustained improvement in heavy bleeding, with the average patient having an approximately 90% decrease in menstrual bleeding from baseline.⁶ It was noted that 70.6% of patients achieved amenorrhea over the last 35 days of treatment.

Importantly, the treatment effect was independent of race, body mass index, baseline menstrual blood loss, and uterine fibroid volume. The bone mineral density (BMD) change trajectory was similar to what was observed in the pivotal study. No new safety concerns were identified, and BMD generally was preserved.

Linzagolix is the newest GnRH antagonist to be studied in a randomized, placebo-controlled trial

Donnez J, Taylor HS, Stewart EA, et al. Linzagolix with and without hormonal add-back therapy for the treatment of symptomatic uterine fibroids: two randomised, placebo-controlled, phase 3 trials. Lancet. 2022;400:896-907.

At the time of this writing, linzagolix was not approved by the FDA. The results of the PRIMROSE 1 (P1) and PRIMROSE 2 (P2) trials were published last year as 2 identical 52-week randomized, parallel, double-blind, placebo-controlled, phase 3 trials.⁷ The difference between the development of linzagolix as a GnRH antagonist and other similar medications is the strategy of potential partial hypothalamic pituitary ovarian axis suppression at 100 mg versus complete suppression at 200 mg. In this trial by Donnez and colleagues, both linzagolix doses were evaluated with and without add-back hormonal therapy and also were compared with placebo in a 1:1:1:1:1 ratio.⁷

Study details and results

To be eligible for this study, participants had to have heavy menstrual bleeding, defined as more than 80 mL for at least 2 cycles, and have at least 1 fibroid that was 2 cm in diameter or multiple small fibroids with the calculated uterine volume of more than 200 cm³. No fibroid larger than 12 cm in diameter was included.

The primary end point was a menstrual blood loss of 80 mL or less and a 50% or more reduction in menstrual blood loss from baseline in the 28 days before week 24. Uterine fibroid volume reduction and a safety assessment, including BMD assessment, also were studied.

In the P1 trial, which was conducted in US sites, the response rate for the primary objective was 56.4% in the linzagolix 100-mg group, 66.4% in the 100-mg plus add-back therapy group, 71.4% in the 200-mg group, and 75.5% in the 200-mg plus add-back group, compared with 35.0% in the placebo group.

In the P2 trial, which included sites in both Europe and the United States, the response rates were 56.7% in the 100-mg group, 77.2% in the 100-mg plus add-back therapy group, 77.7% in the 200-mg group, and 93.9% in the 200-mg plus add-back therapy group, compared with 29.4% in the placebo group. Thus, in both trials a significantly higher proportion of menstrual reduction occurred in all linzagolix treatment groups compared with placebo.

As expected, the incidence of hot flushes was the highest in participants taking the linzagolix 200-mg dose without add-back hormonal therapy, with hot flushes occurring in 35% (P1) and 32% (P2) of patients, compared with all other groups, which was 3% to 14%. All treatment groups showed improvement in quality-of-life scores compared with placebo. Of note, to achieve reduction of fibroid volume in the 40% to 50% range, this was observed consistently only with the linzagolix 200-mg alone dose.

Linzagolix effect on bone

Decreases in BMD appeared to be dose dependent, as lumbar spine losses of up to 4% were noted with the linzgolix 200-mg dose, and a 2% loss was observed with the 100-mg dose at 24 weeks. However, these were improved with add-back therapy. There were continued BMD decreases at 52 weeks, with up to 2.4% with 100 mg of linzagolix and up to 1.5% with 100 mg plus add-back therapy, and up to 2% with 200 mg of linzagolix plus add-back therapy. ●

Endometrial ablation continues to be performed in significant numbers in the United States, with an estimated 500,000 cases annually. Several nonresectoscopic endometrial ablation devices have been approved for use, and some are now discontinued. The newest endometrial ablation therapy to gain US Food and Drug Administration (FDA) approval and to have published outcomes is the Cerene cryotherapy ablation device (Channel Medsystems, Inc). The results of 36-month outcomes from the CLARITY study were published last year, and we have chosen to review these long-term data in addition to that of a second study in which investigators assessed the ability to access the endometrial cavity postcryoablation. We believe this is important because of concerns about the inability to access the endometrial cavity after ablation, as well as the potential for delay in the diagnosis of endometrial cancer. It is interesting that 2 publications simultaneously reviewed the incidence of endometrial cancer after endometrial ablation within the past 12 months, and we therefore present those findings as they provide valuable information.

Our second focus in this year’s Update is to provide additional information about the burgeoning data on gonadotropin-releasing hormone (GnRH) antagonists. We review evidence on linzagolix from the PRIMROSE 1 and PRIMROSE 2 trials and longer-term data on relugolix combination therapy for symptomatic uterine fibroids.

Three-year follow-up after endometrial cryoablation with the Cerene device found high patient satisfaction, low hysterectomy rates

Curlin HL, Cintron LC, Anderson TL. A prospective, multicenter, clinical trial evaluating the safety and effectiveness of the Cerene device to treat heavy menstrual bleeding. J Minim Invasive Gynecol. 2021;28;899-908.

Curlin HL, Anderson TL. Endometrial cryoablation for the treatment of heavy menstrual bleeding: 36-month outcomes from the CLARITY study. Int J Womens Health. 2022;14:1083-1092.
 

The 12-month data on the clinical safety and effectiveness of the Cerene cryoablation device were published in 2021 in the CLARITY trial.¹ The 36-month outcomes were published in 2022 and showed sustained clinical effects through month 36 with a low risk of adverse outcomes.² The interesting aspect of this trial is that although the amenorrhea rate was relatively low at 12 months (6.5%), it continued to remain relatively low compared with rates found with other devices, but the amenorrhea rate increased at 36 months (14.4%). This was the percentage of patients who reported, “I no longer get my period.”

Patient satisfaction was high

Despite a relatively low amenorrhea rate, study participants had a high satisfaction rate and a low 3-year hysterectomy rate. Eighty-five percent of the participants were satisfied or very satisfied, and the cumulative hysterectomy rate was low at 5%.

The overall reintervention rate was 8.7%. Six patients were treated with medications, 2 patients underwent repeat endometrial ablation, 1 received a levonorgestrel-releasing intrauterine device, and 12 underwent hysterectomy.

At 36 months, 201 of the original 242 participants were available for assessment. Unfortunately, 5 pregnancies were reported through the 6-month posttreatment period, which emphasizes the importance of having reliable contraception. However, there were no reports of hematometra or postablation tubal sterilization syndrome (PATSS).

Effect on bleeding was long term

The main finding of the CLARITY study is that the Cerene cryoablation device appears to have a relatively stable effect on bleedingfor the first 3 years after therapy, with minimal risk of hematometra and PATSS. What we find interesting is that despite Cerene cryoablation having one of the lowest amenorrhea rates, it not only had a satisfaction rate in line with that of other devices but also had a low hysterectomy rate—only 5%—at 3 years.

The study authors pointed out that there is a lack of scarring within the endometrial cavity with the Cerene device. Some may find less endometrial scarring worth a low amenorrhea rate in the context of a favorable satisfaction rate. This begs the question, how well can the endometrial cavity be assessed? For answers, keep reading.

Can the endometrial cavity be reliably accessed after Cerene cryoablation?

Endometrial ablation has been associated with intracavitary scarring that results in hematometra, PATSS, and a concern for difficulty in performing an adequate endometrial assessment in patients who develop postablation abnormal uterine bleeding.

In a prospective study, 230 participants (of an initial 242) treated with Cerene cyroablation were studied with hysteroscopic evaluation of the endometrial cavity 12 months after surgery.³ The uterine cavity was accessible in 98.7% of participants. The cavity was not accessible in 3 participants due to pain or cervical stenosis.

Visualization of the uterine cavity was possible by hysteroscopy in 92.7% of study participants (204 of 220), with 1 or both tubal ostia identified in 89.2%. Both tubal ostia were visible in 78.4% and 1 ostium was visible in 10.8%. The cavity was not visualized in 16 of the 220 patients (7.2%) due to intrauterine adhesions, technical difficulties, or menstruation. Also of note, 97 of the 230 participants available at the 12-month follow-up had undergone tubal sterilization before cryoablation and none reported symptoms of PATSS or hematometra, which may be considered surrogate markers for adhesions.

Continue to: Tissue effects differ with ablation technique...

Tissue effects differ with ablation technique

The study authors suggested that different tissue effects occur with freezing compared with heating ablation techniques. With freezing, over weeks to months the chronic inflammatory tissue is eventually replaced by a fibrous scar of collagen, with some preservation of the collagen matrix during tissue repair. This may be different from the charring and boiling of heated tissue that results in architectural tissue loss and may interfere with wound repair and tissue remodeling. Although the incidence of postoperative adhesions after endometrial ablation is not well studied, it is encouraging that most patients who received cryoablation with the Cerene device were able to undergo an evaluation of the endometrium without general anesthesia.

Key takeaway

The main idea from this study is that the endometrium can be assessed by office hysteroscopy in most patients who undergo cryoablation with the Cerene device. This may have advantages in terms of reducing the risk of PATSS and hematometra, and it may allow easier evaluation of the endometrium for patients who have postablation abnormal uterine bleeding. This begs the question, does intrauterine scarring influence the detection of endometrial cancer? For answers, keep reading.

Does endometrial ablation place a patient at higher risk for a delay in the diagnosis of endometrial cancer?

Radestad AF, Dahm-Kahler P, Holmberg E, et al. Long-term incidence of endometrial cancer after endometrial resection and ablation: a population based Swedish gynecologic cancer group (SweGCG) study. Acta Obstet Gynecol Scand. 2022;101:923-930.
 

Oderkerk TJ, van de Kar MRD, Cornel KMC, et al. Endometrial cancer after endometrial ablation: a systematic review. Int J Gynecol Cancer. 2022;32:1555-1560.

The answer to this question appears to be no, based on 2 different types of studies. One study was a 20-year population database review from Sweden,⁴ and the other was a systematic review of 11 cohort studies.⁵

Population-based study findings

The data from the Swedish population database is interesting because since 1994 all Swedish citizens have been allocated a unique personal identification number at birth or immigration that enables official registries and research. In reviewing their data from 1997 through 2017, Radestad and colleagues compared transcervical resection of the endometrium (TCRE) and other forms of endometrial ablation against the Swedish National Patient Register data for endometrial cancer.⁴ They found no increase in the incidence of endometrial cancer after TCRE (0.3%) or after endometrial ablation (0.02%) and suggested a significantly lower incidence of endometrial cancer after endometrial ablation.

This study is beneficial because it is the largest study to explore the long-term incidence of endometrial cancer after TCRE and endometrial ablation. The investigators hypothesized that, as an explanation for the difference between rates, ablation may burn deeper into the myometrium and treat adenomyosis compared with TCRE. However, they also were cautious to note that although this was a 20-year study, the incidence of endometrial carcinoma likely will reach a peak in the next few years.

Systematic review conclusions

In the systematic review, out of 890 publications from the authors’ database search, 11 articles were eventually included for review.⁵ A total of 29,102 patients with endometrial ablation were followed for a period of up to 25 years, and the incidence of endometrial cancer after endometrial ablation varied from 0.0% to 1.6%. A total of 38 cases of endometrial cancer after endometrial ablation have been described in the literature. Of those cases, bleeding was the most common presenting symptom of the disease. Endometrial sampling was successful in 89% of cases, and in 90% of cases, histological exam showed an early-stage endometrial adenocarcinoma.

Based on their review, the authors concluded that the incidence of endometrial cancer was not increased in patients who received endometrial ablation, and more importantly, there was no apparent delay in the diagnosis of endometrial cancer after endometrial ablation. They further suggested that diagnostic management with endometrial sampling did not appear to be a barrier.

Longer-term data for relugolix combination treatment of symptomatic uterine bleeding from fibroids shows sustained efficacy

Al-Hendy A, Lukes AS, Poindexter AN, et al. Long-term relugolix combination therapy for symptomatic uterine leiomyomas. Obstet Gynecol. 2022;140:920-930.

Relugolix combination therapy was previously reported to be effective for the treatment of fibroids based on the 24-week trials LIBERTY 1 and LIBERTY 2. We now have information about longer-term therapy for up to 52 weeks of treatment.⁶

Relugolix combination therapy is a once-daily single tablet for the treatment of heavy menstrual bleeding thought to be due to uterine fibroids in premenopausal women. It is comprised of relugolix 40 mg (a GnRH antagonist), estradiol 1.0 mg, and norethindrone acetate 0.5 mg.

Continue to: Extension study showed sustained efficacy...

The study by Al-Hendy and colleagues showed that the relugolix combination not only was well tolerated but also that there was sustained improvement in heavy bleeding, with the average patient having an approximately 90% decrease in menstrual bleeding from baseline.⁶ It was noted that 70.6% of patients achieved amenorrhea over the last 35 days of treatment.

Importantly, the treatment effect was independent of race, body mass index, baseline menstrual blood loss, and uterine fibroid volume. The bone mineral density (BMD) change trajectory was similar to what was observed in the pivotal study. No new safety concerns were identified, and BMD generally was preserved.

Linzagolix is the newest GnRH antagonist to be studied in a randomized, placebo-controlled trial

Donnez J, Taylor HS, Stewart EA, et al. Linzagolix with and without hormonal add-back therapy for the treatment of symptomatic uterine fibroids: two randomised, placebo-controlled, phase 3 trials. Lancet. 2022;400:896-907.

At the time of this writing, linzagolix was not approved by the FDA. The results of the PRIMROSE 1 (P1) and PRIMROSE 2 (P2) trials were published last year as 2 identical 52-week randomized, parallel, double-blind, placebo-controlled, phase 3 trials.⁷ The difference between the development of linzagolix as a GnRH antagonist and other similar medications is the strategy of potential partial hypothalamic pituitary ovarian axis suppression at 100 mg versus complete suppression at 200 mg. In this trial by Donnez and colleagues, both linzagolix doses were evaluated with and without add-back hormonal therapy and also were compared with placebo in a 1:1:1:1:1 ratio.⁷

Study details and results

To be eligible for this study, participants had to have heavy menstrual bleeding, defined as more than 80 mL for at least 2 cycles, and have at least 1 fibroid that was 2 cm in diameter or multiple small fibroids with the calculated uterine volume of more than 200 cm³. No fibroid larger than 12 cm in diameter was included.

The primary end point was a menstrual blood loss of 80 mL or less and a 50% or more reduction in menstrual blood loss from baseline in the 28 days before week 24. Uterine fibroid volume reduction and a safety assessment, including BMD assessment, also were studied.

In the P1 trial, which was conducted in US sites, the response rate for the primary objective was 56.4% in the linzagolix 100-mg group, 66.4% in the 100-mg plus add-back therapy group, 71.4% in the 200-mg group, and 75.5% in the 200-mg plus add-back group, compared with 35.0% in the placebo group.

In the P2 trial, which included sites in both Europe and the United States, the response rates were 56.7% in the 100-mg group, 77.2% in the 100-mg plus add-back therapy group, 77.7% in the 200-mg group, and 93.9% in the 200-mg plus add-back therapy group, compared with 29.4% in the placebo group. Thus, in both trials a significantly higher proportion of menstrual reduction occurred in all linzagolix treatment groups compared with placebo.

As expected, the incidence of hot flushes was the highest in participants taking the linzagolix 200-mg dose without add-back hormonal therapy, with hot flushes occurring in 35% (P1) and 32% (P2) of patients, compared with all other groups, which was 3% to 14%. All treatment groups showed improvement in quality-of-life scores compared with placebo. Of note, to achieve reduction of fibroid volume in the 40% to 50% range, this was observed consistently only with the linzagolix 200-mg alone dose.

Linzagolix effect on bone

Decreases in BMD appeared to be dose dependent, as lumbar spine losses of up to 4% were noted with the linzgolix 200-mg dose, and a 2% loss was observed with the 100-mg dose at 24 weeks. However, these were improved with add-back therapy. There were continued BMD decreases at 52 weeks, with up to 2.4% with 100 mg of linzagolix and up to 1.5% with 100 mg plus add-back therapy, and up to 2% with 200 mg of linzagolix plus add-back therapy. ●

Endometrial ablation continues to be performed in significant numbers in the United States, with an estimated 500,000 cases annually. Several nonresectoscopic endometrial ablation devices have been approved for use, and some are now discontinued. The newest endometrial ablation therapy to gain US Food and Drug Administration (FDA) approval and to have published outcomes is the Cerene cryotherapy ablation device (Channel Medsystems, Inc). The results of 36-month outcomes from the CLARITY study were published last year, and we have chosen to review these long-term data in addition to that of a second study in which investigators assessed the ability to access the endometrial cavity postcryoablation. We believe this is important because of concerns about the inability to access the endometrial cavity after ablation, as well as the potential for delay in the diagnosis of endometrial cancer. It is interesting that 2 publications simultaneously reviewed the incidence of endometrial cancer after endometrial ablation within the past 12 months, and we therefore present those findings as they provide valuable information.

Our second focus in this year’s Update is to provide additional information about the burgeoning data on gonadotropin-releasing hormone (GnRH) antagonists. We review evidence on linzagolix from the PRIMROSE 1 and PRIMROSE 2 trials and longer-term data on relugolix combination therapy for symptomatic uterine fibroids.

Three-year follow-up after endometrial cryoablation with the Cerene device found high patient satisfaction, low hysterectomy rates

Curlin HL, Cintron LC, Anderson TL. A prospective, multicenter, clinical trial evaluating the safety and effectiveness of the Cerene device to treat heavy menstrual bleeding. J Minim Invasive Gynecol. 2021;28;899-908.

Curlin HL, Anderson TL. Endometrial cryoablation for the treatment of heavy menstrual bleeding: 36-month outcomes from the CLARITY study. Int J Womens Health. 2022;14:1083-1092.
 

The 12-month data on the clinical safety and effectiveness of the Cerene cryoablation device were published in 2021 in the CLARITY trial.¹ The 36-month outcomes were published in 2022 and showed sustained clinical effects through month 36 with a low risk of adverse outcomes.² The interesting aspect of this trial is that although the amenorrhea rate was relatively low at 12 months (6.5%), it continued to remain relatively low compared with rates found with other devices, but the amenorrhea rate increased at 36 months (14.4%). This was the percentage of patients who reported, “I no longer get my period.”

Patient satisfaction was high

Despite a relatively low amenorrhea rate, study participants had a high satisfaction rate and a low 3-year hysterectomy rate. Eighty-five percent of the participants were satisfied or very satisfied, and the cumulative hysterectomy rate was low at 5%.

The overall reintervention rate was 8.7%. Six patients were treated with medications, 2 patients underwent repeat endometrial ablation, 1 received a levonorgestrel-releasing intrauterine device, and 12 underwent hysterectomy.

At 36 months, 201 of the original 242 participants were available for assessment. Unfortunately, 5 pregnancies were reported through the 6-month posttreatment period, which emphasizes the importance of having reliable contraception. However, there were no reports of hematometra or postablation tubal sterilization syndrome (PATSS).

Effect on bleeding was long term

The main finding of the CLARITY study is that the Cerene cryoablation device appears to have a relatively stable effect on bleedingfor the first 3 years after therapy, with minimal risk of hematometra and PATSS. What we find interesting is that despite Cerene cryoablation having one of the lowest amenorrhea rates, it not only had a satisfaction rate in line with that of other devices but also had a low hysterectomy rate—only 5%—at 3 years.

The study authors pointed out that there is a lack of scarring within the endometrial cavity with the Cerene device. Some may find less endometrial scarring worth a low amenorrhea rate in the context of a favorable satisfaction rate. This begs the question, how well can the endometrial cavity be assessed? For answers, keep reading.

Can the endometrial cavity be reliably accessed after Cerene cryoablation?

Endometrial ablation has been associated with intracavitary scarring that results in hematometra, PATSS, and a concern for difficulty in performing an adequate endometrial assessment in patients who develop postablation abnormal uterine bleeding.

In a prospective study, 230 participants (of an initial 242) treated with Cerene cyroablation were studied with hysteroscopic evaluation of the endometrial cavity 12 months after surgery.³ The uterine cavity was accessible in 98.7% of participants. The cavity was not accessible in 3 participants due to pain or cervical stenosis.

Visualization of the uterine cavity was possible by hysteroscopy in 92.7% of study participants (204 of 220), with 1 or both tubal ostia identified in 89.2%. Both tubal ostia were visible in 78.4% and 1 ostium was visible in 10.8%. The cavity was not visualized in 16 of the 220 patients (7.2%) due to intrauterine adhesions, technical difficulties, or menstruation. Also of note, 97 of the 230 participants available at the 12-month follow-up had undergone tubal sterilization before cryoablation and none reported symptoms of PATSS or hematometra, which may be considered surrogate markers for adhesions.

Continue to: Tissue effects differ with ablation technique...

Tissue effects differ with ablation technique

The study authors suggested that different tissue effects occur with freezing compared with heating ablation techniques. With freezing, over weeks to months the chronic inflammatory tissue is eventually replaced by a fibrous scar of collagen, with some preservation of the collagen matrix during tissue repair. This may be different from the charring and boiling of heated tissue that results in architectural tissue loss and may interfere with wound repair and tissue remodeling. Although the incidence of postoperative adhesions after endometrial ablation is not well studied, it is encouraging that most patients who received cryoablation with the Cerene device were able to undergo an evaluation of the endometrium without general anesthesia.

Key takeaway

The main idea from this study is that the endometrium can be assessed by office hysteroscopy in most patients who undergo cryoablation with the Cerene device. This may have advantages in terms of reducing the risk of PATSS and hematometra, and it may allow easier evaluation of the endometrium for patients who have postablation abnormal uterine bleeding. This begs the question, does intrauterine scarring influence the detection of endometrial cancer? For answers, keep reading.

Does endometrial ablation place a patient at higher risk for a delay in the diagnosis of endometrial cancer?

Radestad AF, Dahm-Kahler P, Holmberg E, et al. Long-term incidence of endometrial cancer after endometrial resection and ablation: a population based Swedish gynecologic cancer group (SweGCG) study. Acta Obstet Gynecol Scand. 2022;101:923-930.
 

Oderkerk TJ, van de Kar MRD, Cornel KMC, et al. Endometrial cancer after endometrial ablation: a systematic review. Int J Gynecol Cancer. 2022;32:1555-1560.

The answer to this question appears to be no, based on 2 different types of studies. One study was a 20-year population database review from Sweden,⁴ and the other was a systematic review of 11 cohort studies.⁵

Population-based study findings

The data from the Swedish population database is interesting because since 1994 all Swedish citizens have been allocated a unique personal identification number at birth or immigration that enables official registries and research. In reviewing their data from 1997 through 2017, Radestad and colleagues compared transcervical resection of the endometrium (TCRE) and other forms of endometrial ablation against the Swedish National Patient Register data for endometrial cancer.⁴ They found no increase in the incidence of endometrial cancer after TCRE (0.3%) or after endometrial ablation (0.02%) and suggested a significantly lower incidence of endometrial cancer after endometrial ablation.

This study is beneficial because it is the largest study to explore the long-term incidence of endometrial cancer after TCRE and endometrial ablation. The investigators hypothesized that, as an explanation for the difference between rates, ablation may burn deeper into the myometrium and treat adenomyosis compared with TCRE. However, they also were cautious to note that although this was a 20-year study, the incidence of endometrial carcinoma likely will reach a peak in the next few years.

Systematic review conclusions

In the systematic review, out of 890 publications from the authors’ database search, 11 articles were eventually included for review.⁵ A total of 29,102 patients with endometrial ablation were followed for a period of up to 25 years, and the incidence of endometrial cancer after endometrial ablation varied from 0.0% to 1.6%. A total of 38 cases of endometrial cancer after endometrial ablation have been described in the literature. Of those cases, bleeding was the most common presenting symptom of the disease. Endometrial sampling was successful in 89% of cases, and in 90% of cases, histological exam showed an early-stage endometrial adenocarcinoma.

Based on their review, the authors concluded that the incidence of endometrial cancer was not increased in patients who received endometrial ablation, and more importantly, there was no apparent delay in the diagnosis of endometrial cancer after endometrial ablation. They further suggested that diagnostic management with endometrial sampling did not appear to be a barrier.

Longer-term data for relugolix combination treatment of symptomatic uterine bleeding from fibroids shows sustained efficacy

Al-Hendy A, Lukes AS, Poindexter AN, et al. Long-term relugolix combination therapy for symptomatic uterine leiomyomas. Obstet Gynecol. 2022;140:920-930.

Relugolix combination therapy was previously reported to be effective for the treatment of fibroids based on the 24-week trials LIBERTY 1 and LIBERTY 2. We now have information about longer-term therapy for up to 52 weeks of treatment.⁶

Relugolix combination therapy is a once-daily single tablet for the treatment of heavy menstrual bleeding thought to be due to uterine fibroids in premenopausal women. It is comprised of relugolix 40 mg (a GnRH antagonist), estradiol 1.0 mg, and norethindrone acetate 0.5 mg.

Continue to: Extension study showed sustained efficacy...

The study by Al-Hendy and colleagues showed that the relugolix combination not only was well tolerated but also that there was sustained improvement in heavy bleeding, with the average patient having an approximately 90% decrease in menstrual bleeding from baseline.⁶ It was noted that 70.6% of patients achieved amenorrhea over the last 35 days of treatment.

Importantly, the treatment effect was independent of race, body mass index, baseline menstrual blood loss, and uterine fibroid volume. The bone mineral density (BMD) change trajectory was similar to what was observed in the pivotal study. No new safety concerns were identified, and BMD generally was preserved.

Linzagolix is the newest GnRH antagonist to be studied in a randomized, placebo-controlled trial

Donnez J, Taylor HS, Stewart EA, et al. Linzagolix with and without hormonal add-back therapy for the treatment of symptomatic uterine fibroids: two randomised, placebo-controlled, phase 3 trials. Lancet. 2022;400:896-907.

At the time of this writing, linzagolix was not approved by the FDA. The results of the PRIMROSE 1 (P1) and PRIMROSE 2 (P2) trials were published last year as 2 identical 52-week randomized, parallel, double-blind, placebo-controlled, phase 3 trials.⁷ The difference between the development of linzagolix as a GnRH antagonist and other similar medications is the strategy of potential partial hypothalamic pituitary ovarian axis suppression at 100 mg versus complete suppression at 200 mg. In this trial by Donnez and colleagues, both linzagolix doses were evaluated with and without add-back hormonal therapy and also were compared with placebo in a 1:1:1:1:1 ratio.⁷

Study details and results

To be eligible for this study, participants had to have heavy menstrual bleeding, defined as more than 80 mL for at least 2 cycles, and have at least 1 fibroid that was 2 cm in diameter or multiple small fibroids with the calculated uterine volume of more than 200 cm³. No fibroid larger than 12 cm in diameter was included.

The primary end point was a menstrual blood loss of 80 mL or less and a 50% or more reduction in menstrual blood loss from baseline in the 28 days before week 24. Uterine fibroid volume reduction and a safety assessment, including BMD assessment, also were studied.

In the P1 trial, which was conducted in US sites, the response rate for the primary objective was 56.4% in the linzagolix 100-mg group, 66.4% in the 100-mg plus add-back therapy group, 71.4% in the 200-mg group, and 75.5% in the 200-mg plus add-back group, compared with 35.0% in the placebo group.

In the P2 trial, which included sites in both Europe and the United States, the response rates were 56.7% in the 100-mg group, 77.2% in the 100-mg plus add-back therapy group, 77.7% in the 200-mg group, and 93.9% in the 200-mg plus add-back therapy group, compared with 29.4% in the placebo group. Thus, in both trials a significantly higher proportion of menstrual reduction occurred in all linzagolix treatment groups compared with placebo.

As expected, the incidence of hot flushes was the highest in participants taking the linzagolix 200-mg dose without add-back hormonal therapy, with hot flushes occurring in 35% (P1) and 32% (P2) of patients, compared with all other groups, which was 3% to 14%. All treatment groups showed improvement in quality-of-life scores compared with placebo. Of note, to achieve reduction of fibroid volume in the 40% to 50% range, this was observed consistently only with the linzagolix 200-mg alone dose.

Linzagolix effect on bone

Decreases in BMD appeared to be dose dependent, as lumbar spine losses of up to 4% were noted with the linzgolix 200-mg dose, and a 2% loss was observed with the 100-mg dose at 24 weeks. However, these were improved with add-back therapy. There were continued BMD decreases at 52 weeks, with up to 2.4% with 100 mg of linzagolix and up to 1.5% with 100 mg plus add-back therapy, and up to 2% with 200 mg of linzagolix plus add-back therapy. ●

COMMENTARY

Answering the protein question when prescribing plant-based diets

Cate Collings, MD

Science supports the use of a whole food, predominantly plant-based dietary pattern for optimal health, including reduced risk for chronic disease, and best practice in treatment of leading chronic disease.

But clinicians who prescribe such eating patterns encounter a common concern from patients whose health may benefit.

“Where will I get my protein?”

We’ve all heard it, and it’s understandable. Patients know that protein is essential for their health and strength, and animal foods have developed a reputation for being the premier protein sources that humans should prioritize through diet. But widespread misconceptions about human needs for protein have inaccurately equated animal food as the best and only sources of protein, augmented by fad diets and modern food marketing. All of this leads to confusion about how much protein people should actually consume and the quality of protein found in plant foods, making many patients reluctant to fully embrace a whole food.

To ensure that patients have all the facts when making dietary decisions, clinicians need to be prepared to respond to concerns about protein adequacy and quality with evidence-based information. A good starting point for these conversations is to assess how much protein patients are already consuming. A review of the 2015-2016 National Health and Nutrition Examination Survey found that women normally consume an average of 69 g and men an average of 97 g of protein daily.

As a general point of reference, the recommended dietary allowance for protein is about 0.8 g/kg of bodyweight (or 0.36 g/lb), which equates to about 52 g of protein per day for a 145-lb woman and 65 g for a 180-lb man. But for many patients, it may be best to get a more precise recommendation based upon age, gender and physical activity level by using a handy Department of Agriculture tool for health care professionals to calculate daily protein and other nutrient needs. Patients can also use one of countless apps to track their protein and other nutrient intake. By using the tool and a tracking app, both clinician and patients can be fully informed whether protein needs are being met.
 

LATEST NEWS

Continuous glucose monitors for pregnant patients?

Robert Fulton

Patients with pregestational diabetes may benefit from use of a continuous subcutaneous insulin infusion pump paired with a continuous glucose monitor. Use of the tools has been associated with a reduction in maternal and neonatal morbidity, a recent study found.

“We were seeing an unacceptable burden of both maternal and fetal disease in our diabetic population,” said Neil Hamill, MD, a maternal-fetal medicine specialist at Methodist Women’s Hospital, Omaha, Neb., and an author of the study. “We thought the success with this technology in the nonpregnant population would and should translate into the pregnant population.”

Dr. Hamill and his colleagues analyzed data from 55 pregnant patients who received care at the Women’s Hospital Perinatal Center at the Nebraska Methodist Health System between October 2019 and October 2022. Everyone in the cohort had pregestational diabetes and required insulin prior to week 20 of pregnancy. They used CGMs for more than 2 weeks. The study set blood glucose levels of less than 140 mg/dL as a healthy benchmark.

Participants who had severe preeclampsia, who had delivered preterm, who had delivered a neonate with respiratory distress syndrome, and/or who had given birth to a larger-than-expected infant spent less time in the safe zone — having a blood glucose level below 140 mg/dL—than women who did not have those risk factors.

“When blood sugar control is better, maternal and fetal outcomes are improved,” Dr. Hamill said.

Neetu Sodhi, MD, an ob.gyn. at Providence Cedars-Sinai Tarzana Medical Center, Los Angeles, expressed optimism that use of blood glucose monitors and insulin pumps can improve outcomes for pregnant patients with pregestational diabetes.

“This is just another case for why it’s so important for patients to have access to these types of devices that really, really improve their outcomes and their health, and now it’s proven in the case of pregnancy outcomes too – or at least suggested strongly with this data,” Dr. Sodhi said.

Continue to: It may be time to pay attention to COVID again...

It may be time to pay attention to COVID again

Kara Grant; Damian McNamara, MA

More than 3 years into the COVID-19 era, most Americans have settled back into their prepandemic lifestyles. But a new dominant variant and rising hospitalization numbers may give way to another summer surge.

Since April, a new COVID variant has cropped up. According to recent Centers for Disease Control and Prevention data, EG.5—from the Omicron family—now makes up 17% of all cases in the United States, up from 7.5% in the first week of July.

A summary from the Center for Infectious Disease Research and Policy at the University of Minnesota says that EG.5, nicknamed “Eris” by health trackers, is nearly the same as its parent strain, XBB.1.9.2, but has one extra spike mutation.

Along with the news of EG.5’s growing prevalence, COVID-related hospitalization rates have increased by 12.5% during the week ending on July 29—the most significant uptick since December. Still, no connection has been made between the new variant and rising hospital admissions. And so far, experts have found no difference in the severity of illness or symptoms between Eris and the strains that came before it.

Cause for concern?

The COVID virus has a great tendency to mutate, said William Schaffner, MD, a professor of infectious diseases at Vanderbilt University, Nashville, Tenn.

“Fortunately, these are relatively minor mutations.” Even so, SARS-CoV-2, the virus that causes COVID-19, continues to be highly contagious. “There isn’t any doubt that it’s spreading—but it’s not more serious.”

So, Dr. Schaffner doesn’t think it’s time to panic. He prefers calling it an “uptick” in cases instead of a “surge,” because a surge “sounds too big.”

While the numbers are still low, compared with 2022’s summer surge, experts still urge people to stay aware of changes in the virus. “I do not think that there is any cause for alarm,” agreed Bernard Camins, MD, an infectious disease specialist at Mount Sinai Hospital, New York.

So why the higher number of cases? “There has been an increase in COVID cases this summer, probably related to travel, socializing, and dwindling masking,” said Anne Liu, MD, an allergy, immunology, and infectious disease specialist at Stanford (Calif.) University. Even so, “because of an existing level of immunity from vaccination and prior infections, it has been limited and case severity has been lower than in prior surges.” ●

COMMENTARY

Answering the protein question when prescribing plant-based diets

Cate Collings, MD

Science supports the use of a whole food, predominantly plant-based dietary pattern for optimal health, including reduced risk for chronic disease, and best practice in treatment of leading chronic disease.

But clinicians who prescribe such eating patterns encounter a common concern from patients whose health may benefit.

“Where will I get my protein?”

We’ve all heard it, and it’s understandable. Patients know that protein is essential for their health and strength, and animal foods have developed a reputation for being the premier protein sources that humans should prioritize through diet. But widespread misconceptions about human needs for protein have inaccurately equated animal food as the best and only sources of protein, augmented by fad diets and modern food marketing. All of this leads to confusion about how much protein people should actually consume and the quality of protein found in plant foods, making many patients reluctant to fully embrace a whole food.

To ensure that patients have all the facts when making dietary decisions, clinicians need to be prepared to respond to concerns about protein adequacy and quality with evidence-based information. A good starting point for these conversations is to assess how much protein patients are already consuming. A review of the 2015-2016 National Health and Nutrition Examination Survey found that women normally consume an average of 69 g and men an average of 97 g of protein daily.

As a general point of reference, the recommended dietary allowance for protein is about 0.8 g/kg of bodyweight (or 0.36 g/lb), which equates to about 52 g of protein per day for a 145-lb woman and 65 g for a 180-lb man. But for many patients, it may be best to get a more precise recommendation based upon age, gender and physical activity level by using a handy Department of Agriculture tool for health care professionals to calculate daily protein and other nutrient needs. Patients can also use one of countless apps to track their protein and other nutrient intake. By using the tool and a tracking app, both clinician and patients can be fully informed whether protein needs are being met.
 

LATEST NEWS

Continuous glucose monitors for pregnant patients?

Robert Fulton

Patients with pregestational diabetes may benefit from use of a continuous subcutaneous insulin infusion pump paired with a continuous glucose monitor. Use of the tools has been associated with a reduction in maternal and neonatal morbidity, a recent study found.

“We were seeing an unacceptable burden of both maternal and fetal disease in our diabetic population,” said Neil Hamill, MD, a maternal-fetal medicine specialist at Methodist Women’s Hospital, Omaha, Neb., and an author of the study. “We thought the success with this technology in the nonpregnant population would and should translate into the pregnant population.”

Dr. Hamill and his colleagues analyzed data from 55 pregnant patients who received care at the Women’s Hospital Perinatal Center at the Nebraska Methodist Health System between October 2019 and October 2022. Everyone in the cohort had pregestational diabetes and required insulin prior to week 20 of pregnancy. They used CGMs for more than 2 weeks. The study set blood glucose levels of less than 140 mg/dL as a healthy benchmark.

Participants who had severe preeclampsia, who had delivered preterm, who had delivered a neonate with respiratory distress syndrome, and/or who had given birth to a larger-than-expected infant spent less time in the safe zone — having a blood glucose level below 140 mg/dL—than women who did not have those risk factors.

“When blood sugar control is better, maternal and fetal outcomes are improved,” Dr. Hamill said.

Neetu Sodhi, MD, an ob.gyn. at Providence Cedars-Sinai Tarzana Medical Center, Los Angeles, expressed optimism that use of blood glucose monitors and insulin pumps can improve outcomes for pregnant patients with pregestational diabetes.

“This is just another case for why it’s so important for patients to have access to these types of devices that really, really improve their outcomes and their health, and now it’s proven in the case of pregnancy outcomes too – or at least suggested strongly with this data,” Dr. Sodhi said.

Continue to: It may be time to pay attention to COVID again...

It may be time to pay attention to COVID again

Kara Grant; Damian McNamara, MA

More than 3 years into the COVID-19 era, most Americans have settled back into their prepandemic lifestyles. But a new dominant variant and rising hospitalization numbers may give way to another summer surge.

Since April, a new COVID variant has cropped up. According to recent Centers for Disease Control and Prevention data, EG.5—from the Omicron family—now makes up 17% of all cases in the United States, up from 7.5% in the first week of July.

A summary from the Center for Infectious Disease Research and Policy at the University of Minnesota says that EG.5, nicknamed “Eris” by health trackers, is nearly the same as its parent strain, XBB.1.9.2, but has one extra spike mutation.

Along with the news of EG.5’s growing prevalence, COVID-related hospitalization rates have increased by 12.5% during the week ending on July 29—the most significant uptick since December. Still, no connection has been made between the new variant and rising hospital admissions. And so far, experts have found no difference in the severity of illness or symptoms between Eris and the strains that came before it.

Cause for concern?

The COVID virus has a great tendency to mutate, said William Schaffner, MD, a professor of infectious diseases at Vanderbilt University, Nashville, Tenn.

“Fortunately, these are relatively minor mutations.” Even so, SARS-CoV-2, the virus that causes COVID-19, continues to be highly contagious. “There isn’t any doubt that it’s spreading—but it’s not more serious.”

So, Dr. Schaffner doesn’t think it’s time to panic. He prefers calling it an “uptick” in cases instead of a “surge,” because a surge “sounds too big.”

While the numbers are still low, compared with 2022’s summer surge, experts still urge people to stay aware of changes in the virus. “I do not think that there is any cause for alarm,” agreed Bernard Camins, MD, an infectious disease specialist at Mount Sinai Hospital, New York.

So why the higher number of cases? “There has been an increase in COVID cases this summer, probably related to travel, socializing, and dwindling masking,” said Anne Liu, MD, an allergy, immunology, and infectious disease specialist at Stanford (Calif.) University. Even so, “because of an existing level of immunity from vaccination and prior infections, it has been limited and case severity has been lower than in prior surges.” ●

COMMENTARY

Answering the protein question when prescribing plant-based diets

Cate Collings, MD

Science supports the use of a whole food, predominantly plant-based dietary pattern for optimal health, including reduced risk for chronic disease, and best practice in treatment of leading chronic disease.

But clinicians who prescribe such eating patterns encounter a common concern from patients whose health may benefit.

“Where will I get my protein?”

We’ve all heard it, and it’s understandable. Patients know that protein is essential for their health and strength, and animal foods have developed a reputation for being the premier protein sources that humans should prioritize through diet. But widespread misconceptions about human needs for protein have inaccurately equated animal food as the best and only sources of protein, augmented by fad diets and modern food marketing. All of this leads to confusion about how much protein people should actually consume and the quality of protein found in plant foods, making many patients reluctant to fully embrace a whole food.

To ensure that patients have all the facts when making dietary decisions, clinicians need to be prepared to respond to concerns about protein adequacy and quality with evidence-based information. A good starting point for these conversations is to assess how much protein patients are already consuming. A review of the 2015-2016 National Health and Nutrition Examination Survey found that women normally consume an average of 69 g and men an average of 97 g of protein daily.

As a general point of reference, the recommended dietary allowance for protein is about 0.8 g/kg of bodyweight (or 0.36 g/lb), which equates to about 52 g of protein per day for a 145-lb woman and 65 g for a 180-lb man. But for many patients, it may be best to get a more precise recommendation based upon age, gender and physical activity level by using a handy Department of Agriculture tool for health care professionals to calculate daily protein and other nutrient needs. Patients can also use one of countless apps to track their protein and other nutrient intake. By using the tool and a tracking app, both clinician and patients can be fully informed whether protein needs are being met.
 

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Continuous glucose monitors for pregnant patients?

Robert Fulton

Patients with pregestational diabetes may benefit from use of a continuous subcutaneous insulin infusion pump paired with a continuous glucose monitor. Use of the tools has been associated with a reduction in maternal and neonatal morbidity, a recent study found.

“We were seeing an unacceptable burden of both maternal and fetal disease in our diabetic population,” said Neil Hamill, MD, a maternal-fetal medicine specialist at Methodist Women’s Hospital, Omaha, Neb., and an author of the study. “We thought the success with this technology in the nonpregnant population would and should translate into the pregnant population.”

Dr. Hamill and his colleagues analyzed data from 55 pregnant patients who received care at the Women’s Hospital Perinatal Center at the Nebraska Methodist Health System between October 2019 and October 2022. Everyone in the cohort had pregestational diabetes and required insulin prior to week 20 of pregnancy. They used CGMs for more than 2 weeks. The study set blood glucose levels of less than 140 mg/dL as a healthy benchmark.

Participants who had severe preeclampsia, who had delivered preterm, who had delivered a neonate with respiratory distress syndrome, and/or who had given birth to a larger-than-expected infant spent less time in the safe zone — having a blood glucose level below 140 mg/dL—than women who did not have those risk factors.

“When blood sugar control is better, maternal and fetal outcomes are improved,” Dr. Hamill said.

Neetu Sodhi, MD, an ob.gyn. at Providence Cedars-Sinai Tarzana Medical Center, Los Angeles, expressed optimism that use of blood glucose monitors and insulin pumps can improve outcomes for pregnant patients with pregestational diabetes.

“This is just another case for why it’s so important for patients to have access to these types of devices that really, really improve their outcomes and their health, and now it’s proven in the case of pregnancy outcomes too – or at least suggested strongly with this data,” Dr. Sodhi said.

Continue to: It may be time to pay attention to COVID again...

It may be time to pay attention to COVID again

Kara Grant; Damian McNamara, MA

More than 3 years into the COVID-19 era, most Americans have settled back into their prepandemic lifestyles. But a new dominant variant and rising hospitalization numbers may give way to another summer surge.

Since April, a new COVID variant has cropped up. According to recent Centers for Disease Control and Prevention data, EG.5—from the Omicron family—now makes up 17% of all cases in the United States, up from 7.5% in the first week of July.

A summary from the Center for Infectious Disease Research and Policy at the University of Minnesota says that EG.5, nicknamed “Eris” by health trackers, is nearly the same as its parent strain, XBB.1.9.2, but has one extra spike mutation.

Along with the news of EG.5’s growing prevalence, COVID-related hospitalization rates have increased by 12.5% during the week ending on July 29—the most significant uptick since December. Still, no connection has been made between the new variant and rising hospital admissions. And so far, experts have found no difference in the severity of illness or symptoms between Eris and the strains that came before it.

Cause for concern?

The COVID virus has a great tendency to mutate, said William Schaffner, MD, a professor of infectious diseases at Vanderbilt University, Nashville, Tenn.

“Fortunately, these are relatively minor mutations.” Even so, SARS-CoV-2, the virus that causes COVID-19, continues to be highly contagious. “There isn’t any doubt that it’s spreading—but it’s not more serious.”

So, Dr. Schaffner doesn’t think it’s time to panic. He prefers calling it an “uptick” in cases instead of a “surge,” because a surge “sounds too big.”

While the numbers are still low, compared with 2022’s summer surge, experts still urge people to stay aware of changes in the virus. “I do not think that there is any cause for alarm,” agreed Bernard Camins, MD, an infectious disease specialist at Mount Sinai Hospital, New York.

So why the higher number of cases? “There has been an increase in COVID cases this summer, probably related to travel, socializing, and dwindling masking,” said Anne Liu, MD, an allergy, immunology, and infectious disease specialist at Stanford (Calif.) University. Even so, “because of an existing level of immunity from vaccination and prior infections, it has been limited and case severity has been lower than in prior surges.” ●