Phase 1b2 Study of IM-101 to Evaluate Safety and Effectiveness in Adults With Generalized and Ocular Myasthenia Gravis

What this Trial Is About

Researchers are evaluating IM-101 in adults with generalized myasthenia gravis gMG and ocular myasthenia gravis oMG, focusing on those with acetylcholine receptor AChR antibody-positive and AChR antibody-negative forms. The goal is to assess the safety, tolerability, how the drug moves through and affects the body, and the potential effectiveness of IM-101. This Phase 1b2 trial is sponsored by ImmunAbs Inc. and includes multiple study parts to explore these aspects thoroughly. Participants will receive IM-101 or a placebo through intravenous infusions. In Part A, participants get a loading dose on Day 1 and Day 15, followed by a maintenance dose on Day 29, with doses escalating across cohorts. In Part B, dosing includes loading doses on Day 1 and Day 15 and maintenance doses on Days 29, 57, and 85. Some may receive additional doses depending on decisions by an independent data monitoring committee. The study uses randomized, double-blind assignments to compare different dose levels and placebo effects. During the study, participants will be monitored for side effects and safety up to about 99 days in Part A and 169 days in Part B. Researchers will assess the impact of treatment on daily living activities and specific myasthenia gravis severity scores at baseline and Week 16. Safety assessments include tracking adverse events, serious adverse events, and events leading to discontinuation. Participants will undergo regular evaluations to measure the pharmacokinetics and pharmacodynamics of IM-101, with follow-up visits scheduled according to the dosing timeline.

A Phase 1b/2 Study of IM-101 in Adult Participants With Generalized Myasthenia Gravis and Ocular Myasthenia Gravis