Jonathan Silverberg, MD, PhD, MPH
First, Blauvelt and colleagues presented findings from the ongoing LIBERTY AD PED-OLE open-label extension study, including 294 adolescents with moderate to severe AD who participated in previous dupilumab trials. Patients received a maintenance dose of 300 mg dupilumab every 4 weeks, which was increased to a weight-based every-other-week regimen if there was inadequate clinical response to every-4-week dosing. They found that 81.2% of patients achieved an Eczema Area and Severity Index (EASI-75) response at week 52 with every-4-week dosing, and 51.9% of patients at week 48 after switching to every-2-week doing. These results indicate that some adolescents may be able to maintain clinical efficacy with monthly dosing, while others may require every-2-week dosing. Of note, no new safety signals emerged during the study and most adverse events were mild to moderate.
Two more studies were published showing real-world effectiveness and safety of dupilumab. Eichenfield and colleagues performed a retrospective, observational study of the effectiveness of dupilumab after 4 months of treatment using data from national electronic medical records in adults with moderate-to-severe AD. They found that most patients achieved at least a one-grade (81.8%) or two-grade (62.8%) improvement of their Investigator's Global Assessment (IGA) scores, with 42.8% achieving IGA scores of 0/1 (clear/minimal). There were also significant improvements in itch and lesional extent. The results were remarkably similar to those observed in the phase 3 clinical trial program of dupilumab in adults with moderate-to-severe AD.
Bagel and colleagues published baseline characteristics of patients enrolled in the ongoing PROSE longitudinal real-world registry of dupilumab use in adults with moderate-to-severe AD. Almost half of the patients (49.5%) previously received systemic medications, including 41.0% with systemic corticosteroids, 16.8% with nonsteroidal systemic therapies, such as cyclosporine and methotrexate, and 10.2% with phototherapy. This result indicates that many medical professionals are not using dupilumab as a first-line systemic therapy, despite its established record on safety and efficacy. It appears that many clinicians prefer a short-term treatment regimen, such as systemic corticosteroids, prior to initiating long-term treatment with dupilumab. However, short-term treatment approaches are not ideal for this chronic and often lifelong disease. It is important that clinicians develop appropriate long-term treatment approaches for atopic dermatitis in general, regardless of any specific therapy.
On a different research note, my research group just published the results of a longitudinal dermatology practice–based study of depressive symptoms in 695 adults with AD over time. 1 We found that approximately half of the patients experienced fluctuating severity of depressive symptoms, and 45.65% experienced persistent severity of depression. Severity of AD lesions and itch were the strongest predictors of more severe symptoms of depression. Perhaps most fascinating about this research was that symptoms of depression improved dramatically in a very large subset of patients who experienced reduced AD severity with standard-of-care treatment. These results highlight the broader impacts of AD on mental health, which were recently recognized by the American Academy of Dermatology's guideline update on AD comorbidities. 2 Moreover, our study demonstrated that many of these mental health impacts were modifiable with optimized AD therapy.
Additional References
1. Chatrath S, Lei D, Yousaf M, et al. vc Longitudinal course and predictors of depressive symptoms in atopic dermatitis. J Am Acad Dermatol. 2022 (May 9). Doi: 10.1016/j.jaad.2022.04.061
2. Davis DMR, Drucker AM, Alikhan A, et al. American Academy of Dermatology Guidelines: Awareness of comorbidities associated with atopic dermatitis in adults. J Am Acad Dermatol. 2022;86:1335-1336.e18. Doi: 10.1016/j.jaad.2022.01.009