A Study to Evaluate the Safety, Tolerability, Efficacy, and Drug Levels of CC-97540 in Participants With Relapsing Forms of Multiple Sclerosis, Progressive Forms of Multiple Sclerosis or Refractory Myasthenia Gravis (MG) (Breakfree-2)

The purpose of this study is to evaluate the safety, tolerability, efficacy, and drug levels of CC-97540 in participants with Relapsing Forms of Multiple Sclerosis (RMS), Progressive Forms of Multiple Sclerosis (PMS) or Refractory Myasthenia Gravis (MG).

Phase 1 trials primarily test safety and dosing in a small number of participants (typically 20–100). Results do not yet speak to efficacy. FDA approval is typically many years away from this stage.

Enrollment is complete. The trial is in its follow-up or data collection phase — a readout may occur on or near the primary completion date.

Bristol-Myers Squibb (BMY) is the sponsoring company for this trial. BiotechSign currently grades this company C (51/100) based on composite catalyst signals across its full pipeline. This trial is one data point in that overall catalyst picture.