This is a Phase 2a, multicenter, randomized, double-blind, placebo-controlled, biomarker-driven clinical trial evaluating the safety, tolerability, and biological effect of LAM-002A in approximately 12 adults with C9ORF72-associated ALS (C9ALS).~In Part A of the study, approximately twelve C9ALS participants will receive either standard of care plus LAM-002A or standard of care and placebo (randomized 2:1) for the first 12 weeks of the study (Core Study). LAM-002A will be administered as oral capsules 125 mg BID (250 mg total daily dose). The LAM-002A dose may be reduced to 100 mg BID (200 mg total daily dose) if expected gastrointestinal side effects develop.~Participants who complete the first 12 weeks of the Core Study will be eligible to receive active drug (LAM-002A capsules at maximum tolerated dose of 125 or 100 mg BID) for the remainder of the study (open-label extension [OLE]) up to Week 24.~In Part B of the study, participants who complete Part A Week 24 on study drug, will be offered the opportunity to opt-in to continue the open label extension for additional 36 weeks starting at the week 24 visit. Participants who elect not to roll over into the Treatment period B will complete the Day 168 visit, followed a final safety telephone call visit at week 28 to complete study participation. Participants who opt-in to the open label extension for an additional 36 weeks will have their end of study safety telephone call at week 64.
This is a clinical trial to evaluate the safety, tolerability, and biological effect of LAM-002A in adults with C9ORF72-associated ALS (C9ALS).