Status:

ACTIVE_NOT_RECRUITING

A Study of Obexelimab in Patients With Relapsing Multiple Sclerosis (MoonStone)

Lead Sponsor:

Zenas BioPharma (USA), LLC

Conditions:

Relapsing Multiple Sclerosis

Eligibility:

All Genders

18-60 years

Phase:

PHASE2

Brief Summary

This study aims to examine the efficacy and safety of obexelimab in participants with relapsing multiple sclerosis

Detailed Description

The study consists of a Screening Period (Day -28 to Day -1), a 24-week treatment period (Part A and Part B), a 52 week open label extension and an expected 12-week Follow-up Period. Patients with Rel...

Eligibility Criteria

Inclusion

  • Diagnosis of RMS (relapsing-remitting or secondary progressive with relapses) according to the 2017 revision of the McDonald diagnostic criteria
  • An EDSS of ≤ 5.5 at the Screening Visit
  • Must have documentation of:
  • . at least 1 relapse within the previous year OR
  • . ≥ 2 relapses within the past 2 years OR
  • . ≥ 1 active Gd-enhancing brain lesion on an MRI scan within the past 6 months prior to screening
  • Not of childbearing potential or willing to follow contraceptive guidance

Exclusion

  • Primary progressive MS or secondary progressive MS without relapses
  • Meet criteria for neuromyelitis optica spectrum disorder
  • Relapse in the 30 days prior to randomization
  • ≥ 10 years disease duration from onset with patient's EDSS ≤ 2.0 (patient reported is adequate in absence of written medical record)
  • Has \> 20 Gd+ lesions on brain MRI at screening

Key Trial Info

Start Date :

August 26 2024

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

February 1 2026

Estimated Enrollment :

93 Patients enrolled

Trial Details

Trial ID

NCT06564311

Start Date

August 26 2024

End Date

February 1 2026

Last Update

November 17 2025

Active Locations (47)

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Page 1 of 12 (47 locations)

1

North Central Neurology

Cullman, Alabama, United States, 35058

2

Center for Neurology and Spine

Phoenix, Arizona, United States, 85032

3

Perseverance Research Center

Scottsdale, Arizona, United States, 85253

4

Regina Berkovich MD PhD, Inc

West Hollywood, California, United States, 90048