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A Study in Participants With Duchenne Muscular Dystrophy Amenable to Exon 44 Skipping to Evaluate the Safety and Efficacy of ENTR-601-44 (ELEVATE-44)

E

Entrada Therapeutics

Status and phase

Enrolling
Phase 2
Phase 1

Conditions

Duchenne Muscular Dystrophy (DMD)

Treatments

Drug: ENTR-601-44 - matching placebo
Drug: ENTR-601-44

Study type

Interventional

Funder types

Industry

Identifiers

NCT07037862
U1111-1316-5469 (Other Identifier)
ENTR-601-44-201
2024-517584-23-00 (EU Trial (CTIS) Number)

Details and patient eligibility

About

This is a study of the investigational medicine ENTR-601-44 in participants who have Duchenne muscular dystrophy (DMD), a rare genetic condition.

The researchers want to: Test how safe ENTR-601-44 is, learn about any side effects, and look at the potential positive effects of ENTR-601-44, compared to placebo. Placebo looks like the investigational medicine but does not contain any active ingredient. In this summary ENTR-601-44 and placebo are both called study treatments.

The study has 2 parts: Part A: to evaluate if ENTR-601-44 is safe and to determine the best dose of ENTR-601-44 for Part B. Part B: to further evaluate the effect and safety of ENTR-601-44 at the dose determined in Part A.

Participants will:

  • Receive study treatment in the form of multiple intravenous (IV) infusions (slow injection) into a vein over the course of several weeks in Part A and in Part B
  • Visit the clinic regularly for checkups and tests such as: blood and urine tests, physical examinations, questionnaires, and exercise tests. Participants will have a muscle biopsy at the beginning of their participation and after their last dose to allow researchers to compare whether there have been changes in the muscle as a result of the study drug.

Participants are allowed to continue receiving their standard of care therapy for DMD during the study, as long as their health remains stable.

Enrollment

24 estimated patients

Sex

Male

Ages

4 to 20 years old

Volunteers

No Healthy Volunteers

Inclusion and exclusion criteria

Principal inclusion criteria

  1. Genetic diagnosis of DMD and confirmed pathologic variant in the dystrophin gene amenable to exon 44 skipping as reviewed by a central genetic counselor.
  2. Assigned male at birth with clinical signs compatible with Duchenne muscular dystrophy as determined by the investigator.
  3. Part A: 4-20 years of age, inclusive.
  4. Ambulatory Status Part A: ambulatory with a Performance of the Upper Limb v2.0 (PUL 2.0) Entry as per protocol at Screening
  5. Adequate muscle for obtaining tissue biopsy as assessed by the investigator.
  6. Other protocol-defined criteria apply.

Principal exclusion criteria

  1. Any significant concomitant medical condition that might interfere with the ability to comply with protocol requirements.

  2. Has an acute illness within 4 weeks prior to the first dose of study drug which may interfere with study measurements or jeopardize participant's safety.

  3. Use of the following medications:

    1. Prior treatment with any exon skipping therapy at any time
    2. Prior treatment with any gene therapy at any time
    3. Use of anti-coagulants, anti-thrombotics, or anti-platelet agents from at least 30 days prior to the start of the screening period until the end of the study
    4. Use of an immunosuppressant for a non-DMD condition from 30 days prior to screening until the end of the study
    5. Has taken or is currently taking a histone deacetylase (HDAC) inhibitor, including (but not limited to) givinostat from at least 30 days prior to the start of the screening period until the end of the study
  4. Laboratory abnormalities.

  5. Daytime ventilator dependence or any use of invasive mechanical ventilation via tracheostomy.

  6. Has an abnormal electrocardiogram (ECG) reading assessed as clinically significant by the investigator, and/or a QT interval with Fridericia correction method (QTcF) >450 msec at Screening or prior to the first dose of study drug on Day 1.

  7. Received any experimental or investigational drug, etc. within 3 months prior to first dose or within 5 half-lives (whichever is longer).

  8. Other protocol-defined criteria apply.

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Quadruple Blind

24 participants in 2 patient groups, including a placebo group

ENTR-601-44
Experimental group
Description:
intravenous infusion every 6 weeks
Treatment:
Drug: ENTR-601-44
Placebo
Placebo Comparator group
Description:
intravenous infusion every 6 weeks
Treatment:
Drug: ENTR-601-44 - matching placebo

Trial contacts and locations

14

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Data sourced from clinicaltrials.gov

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