Study of ACE-031 in Subjects With Duchenne Muscular Dystrophy

September 14, 2022 updated by: Acceleron Pharma Inc. (a wholly owned subsidiary of Merck Sharp and Dohme, a subsidiary of Merck & Co., Inc.)

A Randomized, Double-Blind, Placebo-Controlled, Multiple Ascending-Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of ACE-031 (ActRIIB-IgG1) in Subjects With Duchenne Muscular Dystrophy

The purpose of this study is to determine if ACE-031 is safe and well-tolerated in boys with Duchenne Muscular Dystrophy (DMD) and to select the optimal doses of ACE-031 in terms of safety and pharmacodynamic (PD) activity for designing future studies. [Note: This study was terminated based on safety data]

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

ACE-031, a soluble form of the human activin receptor type IIB, was administered once every 2 to 4 weeks by subcutaneous (SC) injection to boys with DMD. Dose levels and regimens for this multiple-dose study were based on data from the initial clinical studies in healthy subjects in which doses of 0.02 to 3 mg/kg SC were evaluated. A total of 24 subjects were enrolled into the study; 18 received ACE-031 and 6 placebo. All subjects were treated for a period of 12 weeks.The pharmacodynamic effects of ACE-031 treatment were assessed by a battery of motor function test that included the 6-Minute Walk Test, the 10-Minute Walk/Run Test, the 4-Stair Climb Test and the Gower Maneuver (GW). Muscle strength was assessed by hand-held myometry and fixed system testing. Body composition (i.e., spine BMD, lean mass, and fat mass) was assessed by whole body and lumbar spine DXA scans. Pulmonary function was assessed by forced vital capacity (FVC), maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP). ACE-031 safety was evaluated through observation of the incidence and severity of adverse events.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
24

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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

  • Canada
    • Alberta
      • Calgary, Alberta, Canada
        • Acceleron Investigative Site
    • British Columbia
      • Vancouver, British Columbia, Canada
        • Acceleron Investigative Site
    • Ontario
      • Hamilton, Ontario, Canada
        • Acceleron Investigative Site
      • London, Ontario, Canada
        • Acceleron Investigative Site
      • Ottawa, Ontario, Canada
        • Acceleron Investigative Site

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

2 months and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Diagnosis of DMD confirmed
  • Ambulant
  • Corticosteroid therapy for at least one year prior to study day 1 and on a stable dose and schedule for at least 6 months prior to study day 1
  • Evidence of muscle weakness by clinical assessment

Exclusion Criteria:

  • Any previous treatment with another investigational product within 6 months prior to study day 1
  • Any clinically significant cardiac, endocrine, hematologic, hepatic, immunologic, metabolic, urologic, pulmonary, neurologic, dermatologic, psychiatric, renal, and/or other major disease that is not related to DMD
  • Inability to perform a whole body dual x-ray absorptiometry (DXA) scan

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: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Placebo Comparator: Placebo
Other: Placebo
Matching volume placebo subcutaneously every 2 or 4 weeks for 12 weeks.
Experimental: ACE-031 0.5 mg/kg q4wk
Biological: ACE-031 0.5 mg/kg q4wk
ACE-031 0.5 mg/kg subcutaneously once every 4 weeks for 12 weeks.
Experimental: ACE-031 1.0 mg/kg q2wk
Biological: ACE-031 1.0 mg/kg q2wk
ACE-031 1.0 mg/kg subcutaneously once every 2 weeks for 12 weeks.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of Subjects With Adverse Reactions.
Time Frame: From treatment initiation to End-of-Study Visit, approximately 24 weeks later
Number of subjects in each cohort with a treatment-emergent adverse event considered at least possibly related to study drug
From treatment initiation to End-of-Study Visit, approximately 24 weeks later
Number of Subjects With Clinical Laboratory Adverse Reactions.
Time Frame: Baseline to End-of-Study Visit, approximately 24 weeks later.
Number of subjects in each cohort with treatment-emergent adverse laboratory values judged to be at least possibly related to study drug
Baseline to End-of-Study Visit, approximately 24 weeks later.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percent Change in Total Lean Body Mass by DXA Scan.
Time Frame: Baseline to End-of-Study Visit, approximately 24 weeks later.
Baseline to End-of-Study Visit, approximately 24 weeks later.
Percent Change in Lumbar Spine Bone Mineral Density by DXA Scan.
Time Frame: Baseline to End-of-Study Visit, approximately 24 weeks later.
Baseline to End-of-Study Visit, approximately 24 weeks later.
Percent Change in Muscle Strength Score by Hand-held Myometry.
Time Frame: Baseline to End-of-Study Visit, approximately 24 weeks later.
Manual Muscle Testing (MMT) is a procedure to measure the function and strength of individual muscles and muscle groups. Hand-held myometry, using a device known as a dynamometer, is one method used for MMT. The dynamometer is held against the patient's limb by the examiner and the patient is asked to resist the force applied by the examiner. The dynamometer measures the force applied by the patient, providing a quantitative and objective assessment of strength of the particular muscle or muscle group. The effectiveness of a therapeutic intervention on muscle strength, as measured by hand-held myometry, can be assessed by comparing post-treatment to pre-treatment (baseline) measurements.
Baseline to End-of-Study Visit, approximately 24 weeks later.
Change in Distance Traveled in 6 Minutes (Standardized 6-Minute-Walk Test).
Time Frame: Baseline to End-of-Study Visit, approximately 24 weeks later.
Change in distance traveled in 6 minutes (standardized 6-Minute-Walk Test); stratified by baseline age (<10 years vs. >=10 years)
Baseline to End-of-Study Visit, approximately 24 weeks later.
Change From Baseline in Time to Travel 10 Meters (Standardized 10-Meter-Walk/Run Test).
Time Frame: Baseline to End-of-Study Visit, approximately 24 weeks later.
Baseline to End-of-Study Visit, approximately 24 weeks later.
Change in Pulmonary Function Tests (FVC)
Time Frame: Baseline to End-of-Study Visit, approximately 24 weeks later.
Forced Vital Capacity (FVC); 1 of 3 separate tests employed to assess pulmonary function in this study
Baseline to End-of-Study Visit, approximately 24 weeks later.
Change in Pulmonary Function Test (MIP)
Time Frame: Baseline to End-of-Study Visit. approximately 24 weeks
Maximum Inspiratory Pressure (MIP); 2 of 3 separate tests employed to assess pulmonary function in this study
Baseline to End-of-Study Visit. approximately 24 weeks
Change in Pulmonary Function Test (MEP)
Time Frame: Baseline to End-of-Stuidy Visit, approximately 24 weeks
Maximum Expiratory Pressure (MEP); 3 of 3 separate tests employed to assess pulmonary function in this study
Baseline to End-of-Stuidy Visit, approximately 24 weeks

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Acceleron Pharma Inc. (a wholly owned subsidiary of Merck Sharp and Dohme, a subsidiary of Merck & Co., Inc.)

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 1, 2010

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2011

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2011

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 2, 2010

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 6, 2010

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 8, 2010

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 13, 2022

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 14, 2022

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • A031-03

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

IPD Plan Description

Abstract summarizing trial data has been published online in Muscle & Nerve 23-Dec-2016 https://www.ncbi.nlm.nih.gov/pubmed/27462804 The Sponor currently has no plans to make IPD available for a number of reasons; (i) the study was terminated by the Sponsor prematurely based upon concerns for potential adverse drug reactions following long-term use, which were identified in chronic toxicity studies in animals, (ii) the study population was one with a rare disease, in a groups of subjects with a relatively narrow age range, across a small number of study sites. The Sponsor believes that these factors, taken together, make patient anonymity a significant challenge.

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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