{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T23:36:20Z","timestamp":1790206580063,"version":"4.1.0"},"reference-count":19,"publisher":"American Medical Association (AMA)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAMA Netw Open"],"abstract":"\n Importance<\/jats:title>\n The etiology of amyotrophic lateral sclerosis (ALS), a fatal neurodegenerative disease, is unknown. However, neuroinflammation and complement activation may play a role in disease progression.<\/jats:p>\n <\/jats:sec>\n \n Objective<\/jats:title>\n To determine the effects of zilucoplan, an inhibitor of complement C5, in individuals with ALS.<\/jats:p>\n <\/jats:sec>\n \n Design, Setting, and Participants<\/jats:title>\n Zilucoplan was tested as regimen A of the HEALEY ALS Platform Trial, a phase 2 to 3 multicenter, randomized, double-blind, placebo-controlled perpetual platform clinical trial with sharing of trial infrastructure and placebo data across multiple regimens. Regimen A was conducted from August 17, 2020, to May 4, 2022. A total of 162 participants were randomized to receive zilucoplan (122 [75.3%]) or regimen-specific placebo (40 [24.7%]). An additional 124 concurrently randomized participants were randomized to receive placebo in other regimens.<\/jats:p>\n <\/jats:sec>\n \n Interventions<\/jats:title>\n Eligible participants were randomized in a 3:1 ratio to receive zilucoplan or matching placebo within strata of edaravone and\/or riluzole use for a planned duration of 24 weeks. Active drug (zilucoplan, 0.3 mg\/kg) and placebo were provided for daily subcutaneous dosing.<\/jats:p>\n <\/jats:sec>\n \n Main Outcomes and Measures<\/jats:title>\n The primary end point was change in disease severity from baseline through 24 weeks as measured by the Amyotrophic Lateral Sclerosis Functional Rating Scale\u2013Revised (ALSFRS-R) total score and survival, analyzed using a bayesian shared-parameter model and reported as disease rate ratio (DRR; &amp;lt;1 indicating treatment benefit). The study included prespecified rules for early stopping for futility. Outcome analyses were performed in the full analysis set comparing the zilucoplan group with the total shared placebo group (n\u2009=\u2009164).<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n Among the 162 participants who were randomized (mean [SD] age, 59.6 [11.3]; 99 [61.1%] male), 115 (71.0%) completed the trial. The estimated DRR common to ALSFRS-R and survival was 1.08 (95% credible interval, 0.87-1.31; posterior probability of superiority,\u20090.24). The trial was stopped early for futility. No unexpected treatment-related risks were identified.<\/jats:p>\n <\/jats:sec>\n \n Conclusions and Relevance<\/jats:title>\n In this randomized clinical trial of zilucoplan in ALS, treatment did not alter disease progression. The adaptive platform design of the HEALEY ALS Platform Trial made it possible to test a new investigational product with efficient use of time and resources.<\/jats:p>\n <\/jats:sec>\n \n Trial Registration<\/jats:title>\n \n ClinicalTrials.gov Identifier:\n NCT04297683<\/jats:ext-link>\n <\/jats:p>\n <\/jats:sec>","DOI":"10.1001\/jamanetworkopen.2024.59058","type":"journal-article","created":{"date-parts":[[2025,2,17]],"date-time":"2025-02-17T11:32:56Z","timestamp":1739791976000},"page":"e2459058","source":"Crossref","is-referenced-by-count":26,"title":["Efficacy and Safety of Zilucoplan in Amyotrophic Lateral Sclerosis"],"prefix":"10.1001","volume":"8","author":[{"given":"Sabrina","family":"Paganoni","sequence":"first","affiliation":[{"name":"Sean M. 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