Tralokinumab Real-World Patient-Reported Outcomes in Moderate-to-Severe Atopic Dermatitis Adult Patients in the United States: 6-Month Interim Analysis

Abstract

Introduction: Tralokinumab, an IL-13 targeted biologic approved in the United States (US) for adult patients with moderate-to-severe atopic dermatitis (AD), improved patient-reported outcomes (PROs) in clinical trials and after 4 weeks of use in the real-world setting. This 6-month interim analysis evaluated the real-world impact of tralokinumab on PROs  in adult patients.

Methods: This is an interim analysis of an ongoing 52-week patient survey study enrolling US AD patients from the Adbry^TM Advocate^TM Program. Patients completed the baseline survey close to tralokinumab initiation. Data on demographics and PROs including weekly itch numeric rating scale (NRS), eczema-related weekly sleep NRS, Dermatology Life Quality Index (DLQI), and Treatment Satisfaction Questionnaire for Medication (TSQM-9) were collected. Percent and absolute changes from baseline to 6 months of treatment were calculated. Outcomes are stratified by previous dupilumab use. The percentage of patients experiencing minimal clinically important difference (MCID) was also calculated for itch NRS (3-point reduction) and DLQI (4-point reduction).

Results: As of May 2023, 102 patients completed baseline, 1-month, and 6-month surveys. Of these, 59.8% were female, mean age was 44.2 years (SD=15.7), 82.4% were white, and 85.3% had private insurance. 84.3% were previously treated with topical corticosteroids (TCS) and 52.9% were dupilumab-experienced patients. Over 6 months, there was an improvement in the mean sleep interference NRS (40%), average weekly itch NRS (39%), worst weekly itch NRS (33%), PO-SCORAD (37%), and DLQI (52%). There were improvements in mean TSQM-9 global satisfaction (11.06 points), TSQM-9 convenience (3.92 points), and TSQM-9 effectiveness (14.60 points) scores. Median MCIDs were met by 57.1% on the sleep interference NRS, 51.7% of patients on the average weekly itch NRS, 50.0% on the worst weekly itch NRS, and 68.7% on the DLQI. Relative to the dupilumab-experienced cohort, the dupilumab-naïve patients showed markedly improved outcomes [median MCIDs of 65.6% v 48.4% on sleep NRS; 59.5% v 44.4% on average weekly itch NRS; 61.4% v 39.6% on worst weekly itch NRS; 61.4% v 35.3% on PO-SCORAD; and 75.6% v 61.9% on DLQI].

Conclusion: This 6-month interim analysis shows that tralokinumab improved quality of life outcomes related to itch, sleep, and treatment satisfaction when used either in dupilumab-naïve or in dupilumab-experienced patients.  These patients will continue to be followed for up to 52 weeks of treatment with tralokinumab.