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5-Year Safety Data Leaves Clinicians Optimistic in Upadacitinib for AD Management
Dec 11, 2023
By Lauren Buchanan, MA, Managing Editor
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Christopher Bunick, MD, PhD, presented the research during a late-breaking research session during the 2023 Revolutionizing Atopic Dermatitis Virtual Conference.
Results from the largest safety study for upadacitinib (Rinvoq) to manage atopic dermatitis (AD) shows promising long-term data and was presented during a late breaking research session during the 2023 Revolutionizing Atopic Dermatitis Virtual Conference on December 10, 2023.Christopher Bunick, MD, PhD, associate professor of dermatology and physician-scientist at the Yale School of Medicine in New Haven, Connecticut, showed 5-year safety data on upadacitinib in 15mg and 30mg doses totreat moderate to severe AD.
Seventyfour/Adobe Stock
Seventyfour/Adobe Stock
The data integrates 3 global Phase 3 studies: Measure Up 1 (NCT03569293), Measure Up 2 (NCT03607422), and AD Up (NCT03568318). The unique aspect of this presentation is the extended follow-up period of260 weeks, making it the longest safety study for any systemic agent in AD. The study included around 2700 patients, and notable findings included the representation of a diverse patient population with cardiovascular risk factors and the durability of upadacitinib, as evidenced by low discontinuation rates due to adverse events.
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Atopic Dermatitis
In terms of adverse events, the presentation highlighted exposure-adjusted rates per 100 patient years. Notably, there were low discontinuation rates (about 4 events per 100 patient years) and minimal events leading to death (<0.1), indicating the drug's safety and durability. Specific adverse events or special interests, such as serious infections, active tuberculosis, herpes zoster, non melanoma skin cancer, malignancy, gastrointestinal perforations, and venous thromboembolic events (VTE), were analyzed. Key points include stable rates across the 1 to 5-year time frame, with no new safety signals and very low event rates.
The trials demonstrated consistent event rates over 1, 3, and 5 years, reinforcing the drug's stability and safety. The presentation also contextualized adverse event rates of malignancy, major adverse cardiovascular events (MACE), and VTE in comparison to background rates in the general population and AD patients.
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In summary, this presentation signifies the largest safety study for an AD systemic therapy, with upadacitinib showing a favorable safety profile over a 5-year period. The highest signal was herpes zoster, emphasizing the importance of considering shingles vaccine. MACE, VTE, and malignancy exhibited rock-bottom rates, comparable to or even lower than background rates, suggesting potential anti-inflammatory and cardiovascular protective effects. The conclusion is that prescribing upadacitinib for patients with AD can be considered with confidence.
Reference
Bunick, C. Long-term 5-year safety of upadacitinib in moderate-to-severe atopic dermatitis: An integrated analysis including over 7000 patient-years of exposure. Presented at: 2023 Revolutionizing Vitiligo Virtual Conference; December 10, 2023.
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Granuloma annulare and its potential association with hematologic malignancies
Granuloma annulare (GA) is an uncommon but not incredibly rare disease that most dermatologists encounter with some frequency. While there are a number of variants, most patients present with localized disease, some pediatric patients may present with harder-to-recognize subcutaneous lesions, and a minority of patients (approximately 20%) present with generalized disease. Recognizing the disease is only the first step — dermatologists should be familiar with both disease associations/comorbidities and emerging literature on potential drug triggers and maintain familiarity with the evolving landscape of treatment options and algorithms.
Our understanding of the epidemiology of GA and potential disease associations has improved significantly over the past 5 years. Two large epidemiological studies suggest that the incidence of GA is approximately 0.04% to 0.1% of the US population, with the highest rates noted in the fifth decade of life and an approximately a 3–4:1 female:male ratio, and occurs more commonly among White individuals.1,2 There appears to be an association of GA with type 2 diabetes and hyperlipidemia and an increased risk of other autoimmune diseases, including thyroid disease.3,4There does not appear to be an association between GA and solid organ malignancy.5 Prior research had suggested a potential increased risk of hematologic malignancies in patients with GA.3
The study by Garate et al (conflict of interest disclosure: I am a co-author of this study) used analysis of ICD-10 codes (which have been previously validated for this work) in the TriNetX research network to explore that link further. The findings suggest an increased risk for lymphoma, leukemia, and any hematologic malignancy in patients with GA compared with matched controls. This lends further evidence to the observation that patients with GA may have an increased risk of hematologic malignancy. There were similar disease associations in patients aged 51 to 70 years and those older than 70 years, and there was no increased risk for younger patients (due to the rarity of hematologic malignancy, the study may lack the power to exclude a small increased risk in that age group). Notably, hematologic malignancies remain rare overall; hence, even with a potential increase in the risk, most patients with GA will not have or develop a hematologic malignancy.
Prior to this work, I would counsel patients who presented with atypical disease (eg, near-erythroderma), recalcitrant disease (eg, failing to respond to initial first- or second-line therapy), or an unusual demographic (eg, age >65 years) about the need to consider the underlying drivers of their GA, including potential hematologic disease. Practically, this would often mean screening with at least a complete blood count, chest x-ray, and evaluation for paraprotein with a serum protein electrophoresis. Based on this new study, I will likely extend that evaluation to patients older than 50 years, and advise them to report concerning symptoms (easy bleeding/bruising, "B symptoms" of fever, chills, weight loss, night sweats, etc), and keep up to date with their primary care doctor and age-appropriate evaluations (as should all patients!). Over time, this disease association may also impact treatment algorithms, as recent publications have proposed the consideration of off-label use of TNF inhibitors as potential second-line agents for recalcitrant generalized GA.6
References