NCT07249632

A Study of Telitacicept in Patients With Ocular Myasthenia Gravis (OMG)

A Phase III Trial of Telitacicept in Patients With Ocular Myasthenia Gravis

• Status: Recruiting
• Phase: Phase 3
• Study type: Interventional
• Enrollment: 120 (estimated)
• Sponsor: RemeGen Co., Ltd. · Industry
• Sex: All
• Age: 12 Years – 80 Years
• Healthy volunteers: Not accepted

Summary

This is a Phase III, multicenter, randomized, double-blind, placebo-controlled study designed to evaluate the efficacy and safety of Telitacicept for the treatment of Ocular Myasthenia Gravis (OMG).Approximately 120 eligible subjects aged 12 to 80 years with a diagnosis of OMG (Myasthenia Gravis Foundation of America \[MGFA\] Clinical Classification Type I) will be randomized in a 1:1 ratio to receive either Telitacicept or a matching placebo. Subjects must be on a stable standard-of-care therapy and have an MG Impairment Index (PRO) ocular score of ≥6 at screening and baseline.The dose is age and weight based.The primary objective is to evaluate the efficacy of Telitacicept compared to placebo in treating OMG.The primary efficacy endpoint is the change from baseline in the MGII (PRO) ocular score at Week 24. Secondary endpoints include changes from baseline in other ocular and total scores from MGII, Myasthenia Gravis-Activities of Daily Living (MG-ADL), MG Clinical Absolute Score, and the 15-item Myasthenia Gravis Quality of Life Revised scale (MG-QOL15r). Safety and tolerability will be monitored throughout the study.

Detailed description

This is a Phase III, multicenter, randomized, double-blind, placebo-controlled, parallel-group study to assess the efficacy and safety of Telitacicept in subjects with Ocular Myasthenia Gravis (OMG). The study will be conducted at multiple centers. Eligible subjects will be randomized in a 1:1 ratio to one of two treatment arms: Arm 1: Telitacicept Arm 2: Placebo Randomization will be stratified by two factors: Acetylcholine Receptor (AChR) antibody status (positive vs. negative) and age (\<18 years vs. ≥18 years). Primary Objective: To evaluate the efficacy of Telitacicept compared to placebo in the treatment of subjects with Ocular Myasthenia Gravis. Primary Endpoint: Change from baseline in the Myasthenia Gravis Impairment Index (Patient-Reported Outcomes) \[MGII (PRO)\] ocular score at Week 24. Study Population: A total of approximately 120 subjects will be enrolled. Intervention: Subjects will receive either Telitacicept or a matching placebo. The dose will be determined based on the subject's age and body weight at baseline. The placebo will be identical in appearance to Telitacicept to maintain the blind. Safety Assessments: Safety and tolerability will be assessed through the monitoring and recording of adverse events (AEs), serious adverse events (SAEs), vital signs, physical examinations, and regular laboratory tests (hematology, serum chemistry, urinalysis). An independent Data Monitoring Committee (DMC) will be established to monitor the safety of the trial.

Conditions

• Myasthenia Gravis, Ocular

Interventions

Type	Name	Description
DRUG	Telitacicept	The dosage is administered based on the subject's age and baseline body weight.
DRUG	Placebo	The placebo contains no active ingredients. To maintain the blind, the placebo matches the active drug in all physical aspects.

Timeline

• Start date: 2026-01-13
• Primary completion: 2026-12-31
• Completion: 2027-02-28
• First posted: 2025-11-25
• Last updated: 2026-04-09

Locations

1 site across 1 country: China