Biogen Inc. ((BIIB)), Biogen ((CC:HTER)) announced an update on their ongoing clinical study.
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Biogen Inc. (BIIB) is currently conducting a clinical study titled ‘A 2-Part Seamless Part A (Phase 2)/Part B (Phase 3) Randomized, Double-Blind, Placebo-Controlled, Multicenter Study to Evaluate the Efficacy and Safety of BIIB059 in Participants With Active Subacute Cutaneous Lupus Erythematosus and/or Chronic Cutaneous Lupus Erythematosus With or Without Systemic Manifestations and Refractory and/or Intolerant to Antimalarial Therapy (AMETHYST)’. The study aims to assess the efficacy and safety of litifilimab (BIIB059) in reducing skin disease activity in participants with cutaneous lupus erythematosus (CLE) who have not responded to antimalarial therapy.
The intervention being tested is litifilimab, a humanized monoclonal antibody targeting blood dendritic cell antigen 2. It is administered subcutaneously and is intended to reduce the activity of CLE.
This interventional study is randomized and employs a parallel assignment model with quadruple masking. The primary purpose is treatment, focusing on the efficacy of litifilimab compared to a placebo in reducing skin disease activity.
The study began on September 13, 2022, and the last update was submitted on August 6, 2025. These dates are crucial as they indicate the study’s progress and timelines for potential data availability.
The outcome of this study could significantly impact Biogen’s stock performance, as positive results may enhance investor confidence and position Biogen competitively in the lupus treatment market. Competitors in the autoimmune disease sector will be closely monitoring these developments.
The study is ongoing, and further details are available on the ClinicalTrials portal.