Study to Evaluate the Efficacy and Safety of BBP-418 (Ribitol) in Patients With Limb Girdle Muscular Dystrophy 2I (LGMD2I)

NCT ID: NCT05775848

Last Updated: 2025-09-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE3

Total Enrollment

81 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-05-31

Study Completion Date

2027-07-31

Brief Summary

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This study will evaluate the safety and efficacy of long-term administration of BBP-418 in patients with LGMD2I/R9. The study will include patients ages 12 to 60, consistent with the existing preclinical toxicology profile. This will encompass the significant majority of existing diagnosed patients based upon the established epidemiology of the disease.

Detailed Description

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Conditions

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Limb-Girdle Muscular Dystrophy Type 2I (LGMD2I)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Randomization will be stratified by mutation status (L276I homozygous or other), age (\<12 years \[to allow for possible addition of this age group in a future protocol amendment\], 12 to \<18 years, and 18 to 60 years of age), and qualification status for the Primary Efficacy Analysis Population ("qualifies" or "does not qualify").

\[NOTE: EU region will only enroll 18 to 60 years of age\]
Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
2:1 Randomization

Study Groups

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BBP-418

BBP-418 Granules for Oral Solution will be supplied as granules in tri-ply PET/Aluminum/PE sachets for unit dose. The number of sachets to reconstitute will depend on the applicable dose to be delivered, 9 g BID or 12 g BID, as determined by the weight of the participant. The granules will be reconstituted in water for oral administration.

Group Type ACTIVE_COMPARATOR

BBP-418 (ribitol)

Intervention Type DRUG

The BBP-418 drug product is provided as Granules for Oral solution consisting of BBP-418 drug substance and silicon dioxide in a multilaminate sachet with a foil barrier. Silicon dioxide is generally regarded as safe and listed in the FDA IIAD. Silicon dioxide is a compendial excipient and is commonly used in pharmaceutical dosage forms. The BBP-418 Granules for Oral Solution are provided in sachets.The BBP-418 Granules for Oral Solution are reconstituted in water for oral administration.

Placebo

Intervention Type OTHER

A placebo matched for similar taste and appearance was compounded at the clinical pharmacy with sucralose as a 0.35 mg/mL oral solution in purified water (USP) in a glass container. Sucralose is similar in taste to the compounded drug product.

Placebo to Match BBP-418

The placebo will be identical to the BBP-418 Granules for Oral Solution in appearance, packaging, labeling, and storage conditions.

Group Type PLACEBO_COMPARATOR

BBP-418 (ribitol)

Intervention Type DRUG

The BBP-418 drug product is provided as Granules for Oral solution consisting of BBP-418 drug substance and silicon dioxide in a multilaminate sachet with a foil barrier. Silicon dioxide is generally regarded as safe and listed in the FDA IIAD. Silicon dioxide is a compendial excipient and is commonly used in pharmaceutical dosage forms. The BBP-418 Granules for Oral Solution are provided in sachets.The BBP-418 Granules for Oral Solution are reconstituted in water for oral administration.

Placebo

Intervention Type OTHER

A placebo matched for similar taste and appearance was compounded at the clinical pharmacy with sucralose as a 0.35 mg/mL oral solution in purified water (USP) in a glass container. Sucralose is similar in taste to the compounded drug product.

Interventions

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BBP-418 (ribitol)

The BBP-418 drug product is provided as Granules for Oral solution consisting of BBP-418 drug substance and silicon dioxide in a multilaminate sachet with a foil barrier. Silicon dioxide is generally regarded as safe and listed in the FDA IIAD. Silicon dioxide is a compendial excipient and is commonly used in pharmaceutical dosage forms. The BBP-418 Granules for Oral Solution are provided in sachets.The BBP-418 Granules for Oral Solution are reconstituted in water for oral administration.

Intervention Type DRUG

Placebo

A placebo matched for similar taste and appearance was compounded at the clinical pharmacy with sucralose as a 0.35 mg/mL oral solution in purified water (USP) in a glass container. Sucralose is similar in taste to the compounded drug product.

Intervention Type OTHER

Eligibility Criteria

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Exclusion Criteria

3. If pregnant and/or breastfeeding or planning to conceive children within the projected duration of the study through 12 weeks after the last dose of study treatment.
4. Use of ribose or other sugar alcohol-containing supplement within 90 days of the Screening Visit.
5. Use of a systemic corticosteroid for the treatment of muscular dystrophy within 90 days of the Screening Visit. (An inhaled corticosteroid or bronchodilator for reactive airway disease is allowed if the participant is on a stable dose for 30 days prior to study entry.)
6. Previously received gene therapy to treat LGMD2I/R9.
7. Participants with active suicidal ideation as measured by Columbia-Suicide Severity Rating Scale during screening with most severe suicide ideation score of 4 (Active Suicidal Ideation with Some Intent to Act, without Specific Plan) or 5 (Active Suicidal Ideation with Specific Plan and Intent).
8. Presence of a platelet disorder, bleeding disorder, or other contraindication to muscle biopsy.
9. Actively on an experimental therapy or device or was on an experimental therapy or device within 90 days of the Screening Visit, or was on BBP-418 at any time.
10. In the judgment of the Investigator or Medical Monitor, has any clinically important ongoing medical condition or laboratory abnormality or condition that might jeopardize the participant's safety, increase their risk from participation, or interfere with the study. For COVID-19 infections, Investigator should refer to local guidance.
Minimum Eligible Age

12 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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ML Bio Solutions, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Arkansas Children&#39;s Hospital

Little Rock, Arkansas, United States

Site Status

University of California Irvine

Irvine, California, United States

Site Status

University of Colorado Anschutz Medical Campus

Aurora, Colorado, United States

Site Status

University of Florida

Gainsville, Florida, United States

Site Status

University of Iowa

Iowa City, Iowa, United States

Site Status

University of Kansas Medical Center

Kansas City, Kansas, United States

Site Status

Kennedy Krieger Institute

Baltimore, Maryland, United States

Site Status

University of Minnesota, Twin Cities

Minneapolis, Minnesota, United States

Site Status

Washington University School of Medicine

St Louis, Missouri, United States

Site Status

Oregon Health & Science University (OHSU) - Neurology Clinic - South Waterfront

Portland, Oregon, United States

Site Status

The Children's Hospital of Philadelphia

Philadelphia, Pennsylvania, United States

Site Status

University of Pennsylvania

Philadelphia, Pennsylvania, United States

Site Status

Children&#39;s Hospital of the Kings Daughters

Norfolk, Virginia, United States

Site Status

Royal Brisbane and Women's Hospital,

Brisbane, Queensland, Australia

Site Status

Rigshospitalet, Neuromuscular Clinic and Research Unit

Copenhagen, , Denmark

Site Status

Charité Universitätsmedizin Berlin and Max Delbrück Center

Berlin, , Germany

Site Status

IRCCS Ca&#39; Granda Ospedale

Milan, , Italy

Site Status

Leiden University Medical Center

Leiden, , Netherlands

Site Status

Universitetssykehuset Nord-Norge, Department of Neurology

Tromsø, , Norway

Site Status

Great Ormond Street Hospital for Children

London, , United Kingdom

Site Status

International Centre for Life

Newcastle upon Tyne, , United Kingdom

Site Status

Countries

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United States Australia Denmark Germany Italy Netherlands Norway United Kingdom

Other Identifiers

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MLB-01-005

Identifier Type: -

Identifier Source: org_study_id

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