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

NCT ID: NCT07037862

Last Updated: 2025-12-15

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

RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

24 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-06-30

Study Completion Date

2029-03-28

Brief Summary

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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 be able to roll into an open-label treatment period during which the safety and efficacy of extended dosing will be evaluated.

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.

Detailed Description

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Conditions

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Duchenne Muscular Dystrophy (DMD)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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ENTR-601-44

intravenous infusion every 6 weeks

Group Type EXPERIMENTAL

ENTR-601-44

Intervention Type DRUG

intravenous infusion

Placebo

intravenous infusion every 6 weeks

Group Type PLACEBO_COMPARATOR

ENTR-601-44 - matching placebo

Intervention Type DRUG

intravenous infusion

Interventions

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ENTR-601-44

intravenous infusion

Intervention Type DRUG

ENTR-601-44 - matching placebo

intravenous infusion

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Genetic diagnosis of Duchenne muscular dystrophy (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.

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
4. Use of an immunosuppressants (other than oral corticosteroids for DMD conditions)
5. Has taken or is currently taking a histone deacetylase (HDAC) inhibitor, including (but not limited to) givinostat
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.
Minimum Eligible Age

4 Years

Maximum Eligible Age

20 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Entrada Therapeutics, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Entrada Therapeutics Clinical Trials

Role: STUDY_DIRECTOR

Entrada Therapeutics, Inc.

Locations

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University Hospital Gent

Ghent, , Belgium

Site Status RECRUITING

UZ Leuven

Leuven, , Belgium

Site Status RECRUITING

Centre Hospitalier Régional de la Citadelle

Liège, , Belgium

Site Status RECRUITING

IRCCS Ospedale San Raffaele

Milan, , Italy

Site Status NOT_YET_RECRUITING

Fondazione Serena Onlus - Centro Clinico NeMO Milano

Milan, , Italy

Site Status NOT_YET_RECRUITING

Ospedale Pediatrico Bambino Gesu

Rome, , Italy

Site Status NOT_YET_RECRUITING

Fondazione Policlinico Universitario A. Gemelli IRCCS - Universita Cattolica del Sacro Cuore

Rome, , Italy

Site Status NOT_YET_RECRUITING

Hospital Universitario Vall d'Hebron

Barcelona, , Spain

Site Status RECRUITING

Hospital Sant Joan de Deu

Barcelona, , Spain

Site Status RECRUITING

Leeds General Infirmary

Leeds, , United Kingdom

Site Status RECRUITING

Alder Hey Children's NHS Foundation Trust

Liverpool, , United Kingdom

Site Status NOT_YET_RECRUITING

Great Ormond Street Hospital for Children

London, , United Kingdom

Site Status NOT_YET_RECRUITING

Royal Manchester Children's Hospital

Manchester, , United Kingdom

Site Status NOT_YET_RECRUITING

Freeman Hospital

Newcastle upon Tyne, , United Kingdom

Site Status RECRUITING

Oxford University Hospitals NHS Foundation Trust

Oxford, , United Kingdom

Site Status RECRUITING

Countries

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Belgium Italy Spain United Kingdom

Facility Contacts

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Nicolas Deconinck

Role: primary

+32 473 96 66 19

Liesbeth De Waele

Role: primary

+32 1634 3845

Aurore Daron

Role: primary

+32 4 321 8515

Stefano Previtali

Role: primary

0226435080

Valeria Sansone

Role: primary

+39 3495607450

Adele D'Amico

Role: primary

+393888449868

Marika Pane

Role: primary

+39 (0) 630 156 742

David Gomez Andres

Role: primary

+34620539379

Andres Nascimento

Role: primary

+34936009733

Cristina Martos Lozano

Role: primary

+441133923113

Rajesh Madhu

Role: primary

+4401512284811

Mariacristina Scoto

Role: primary

020 7405 9200

Gary McCullagh

Role: primary

+441617012346

Michela Guglieri

Role: primary

0044 1912418649

Laurent Servais

Role: primary

07423213373

Other Identifiers

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2024-517584-23-00

Identifier Type: CTIS

Identifier Source: secondary_id

U1111-1316-5469

Identifier Type: OTHER

Identifier Source: secondary_id

ENTR-601-44-201

Identifier Type: -

Identifier Source: org_study_id

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