Efficacy and Safety of Losmapimod in Treating Subjects With Facioscapulohumeral Muscular Dystrophy (FSHD) With Open-Label Extension (OLE)

July 5, 2023 updated by: Fulcrum Therapeutics

A Phase 2, Randomized, Double-Blind, Placebo-Controlled, 48-Week, Parallel-Group Study of the Efficacy and Safety of Losmapimod in Treating Subjects With Facioscapulohumeral Muscular Dystrophy (FSHD) With Open-Label Extension (OLE)

This study is an open-label extension to evaluate the safety and tolerability of long-term dosing of Losmapimod in patients with FSHD1 who participated in the ReDux4 study.

Study Overview

Status

Active, not recruiting

Intervention / Treatment

Detailed Description

This study is an open-label extension study to evaluate the safety and tolerability of long-term dosing of Losmapimod in patients with FSHD1 who participated in the ReDux4 study.

This study is a multi-center clinical trial. It will be conducted in North America, Canada and Europe. Only patients who participated and competed all study procedures in the ReDUX4 Study treatment period will be eligible to participate in this open label extension study.

Patients who complete the randomized, placebo-controlled portion of the study will have the option to roll over into the open-label extension study.

Patients will receive 15 mg of losmapimod by mouth twice daily for a total of 30 mg by mouth daily. All patients will attend clinic visits approximately every 12 weeks.

Participation in this open-label extension study will continue until 90 days after losmapimod becomes commercially available, the patient withdraws from the study, or the Sponsor decides to close the study.

The primary endpoint of the study is to evaluate the safety and tolerability of long-term dosing of losmapimod in patients with FSHD.

Study Type

Interventional

Enrollment (Actual)

76

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Ontario
      • Ottawa, Ontario, Canada, K1Y 4E9
        • Ottawa Hospital Research Institute
    • Quebec
      • Montréal, Quebec, Canada, H3A 2B4
        • Montreal Neurological Institute and Hospital
      • Nice, France, 06001
        • CHU de NICE- CHU pasteur2
      • Barcelona, Spain, 08041
        • Hospital de la Sta Creu i St Pau
      • Valencia, Spain, 46026
        • Hospital UiP La Fe
    • California
      • Irvine, California, United States, 92868
        • University of California Irvine
      • Los Angeles, California, United States, 90095
        • University of California Los Angeles (UCLA)
    • Florida
      • Gainesville, Florida, United States, 32610
        • University of Florida
    • Kansas
      • Kansas City, Kansas, United States, 66160
        • University Of Kansas Medical Center
    • Maryland
      • Baltimore, Maryland, United States, 21205
        • Kennedy Krieger Institute
    • Massachusetts
      • Worcester, Massachusetts, United States, 01655
        • University of Massachusetts Memorial Medical Center
    • Missouri
      • Saint Louis, Missouri, United States, 63110
        • Washington University School of Medicine
    • New York
      • Rochester, New York, United States, 14642
        • University of Rochester Medical Center
    • Ohio
      • Columbus, Ohio, United States, 43221
        • Ohio State University
    • Utah
      • Salt Lake City, Utah, United States, 84132
        • University of Utah
    • Virginia
      • Richmond, Virginia, United States, 23298
        • Virginia Commonwealth University
    • Washington
      • Seattle, Washington, United States, 98195
        • University of Washinton Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • The patient must have consented to participate and must have provided signed, dated and witnessed an IRB-approved informed consent form that conforms to federal and institutional guidelines.
  • Male or female subjects
  • Patients must be between 18 and 65 years of age, inclusive
  • Must be will and able to comply with scheduled visits, treatment plan, study restrictions, laboratory tests, contraceptive guidelines and other study procedures.
  • Will practice an approved method of birth control

Exclusion Criteria:

  • Has a history of any illness or any clinical condition that, in the opinion of the investigator, might confound the results of the study or pose an additional risk in administering study drug to the subject. This may include, but is not limited to, a history of relevant drug or food allergies; history of cardiovascular or central nervous system disease; neuromuscular diseases except FSHD (eg, myopathy, neuropathy, neuromuscular junction disorders); or clinically significant history of mental disease.
  • For subjects who are on drug(s) or supplements that may affect muscle function, as determined by the treating physician, or that are included in the list of drugs presented in the protocol, subjects must be on a stable dose of that drug(s) or supplement for at least 3 months prior to the first dose of study drug and remain on that stable dose for the duration of the study. Changes to the dose or treatment discontinuation during the study can only be done for strict medical reasons by the treating physician with clear documentation and notification to the sponsor.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Losmapimod
FSHD1 patients with genetic confirmation will receive Losmapimod 15 mg by mouth twice daily for a total of 30 mg daily until 90 days after commercial drug is available post regulatory approval or until the study is discontinued by the Sponsor.
Patients will receive Losmapimod 15 mg by mouth twice daily for a total of 30 mg daily until 90 days after commercial drug is available post regulatory approval or until the study is discontinued by the Sponsor. The study drug should be taken with food and the date and time of each dose taken should be recorded in the subject diary.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Safety and Tolerability of Losmapimod
Time Frame: Every 12 Weeks from the date of enrollment through study completion, up to 60 months

Safety and tolerability of losmapimod will be evaluated by the following:

a. Type, frequency, severity and relationship of adverse events (AEs) to losmapimod

Every 12 Weeks from the date of enrollment through study completion, up to 60 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Director: Marie-Helene Jouvin, MD, Fulcrum Therapeutics

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 13, 2020

Primary Completion (Estimated)

October 1, 2025

Study Completion (Estimated)

January 1, 2026

Study Registration Dates

First Submitted

January 30, 2020

First Submitted That Met QC Criteria

February 7, 2020

First Posted (Actual)

February 11, 2020

Study Record Updates

Last Update Posted (Actual)

July 7, 2023

Last Update Submitted That Met QC Criteria

July 5, 2023

Last Verified

July 1, 2023

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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