Extension of AOC 1001-CS1 (MARINA) Study in Adult Myotonic Dystrophy Type 1 (DM1) Patients

NCT ID: NCT05479981

Last Updated: 2025-10-08

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

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

37 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-08-04

Study Completion Date

2025-09-10

Brief Summary

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AOC 1001-CS2 (MARINA-OLE) is a Phase 2 extension of the AOC 1001-CS1 (MARINA) study to evaluate the safety, tolerability, efficacy, pharmacokinetics and pharmacodynamics of multiple-doses of AOC 1001 Administered Intravenously to Adult Myotonic Dystrophy Type 1 (DM1) patients

Detailed Description

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This study will continue to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and efficacy of AOC 1001 in participants that enrolled in the randomized, placebo-controlled, First-In-Human Phase 1/2 AOC 1001-CS1 (MARINA) clinical study.

Participants from AOC 1001-CS1 are eligible to enroll in AOC 1001-CS2 if they have satisfactorily completed AOC 1001-CS1.

After completion of Q8W Visit 6 assessments, participants will have the option to enroll in another AOC 1001 open-label extension (OLE) study. Participants who do not enroll in an AOC 1001 OLE study will be monitored for safety for a total of 8 weeks from the last dose of study drug. Total duration on study is up to 37 months (3 years 1 month).

As of September 2024, the dosing regimen was updated to every 8 weeks.

Conditions

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DM1 Muscular Dystrophies Myotonic Dystrophy Myotonic Dystrophy 1 Myotonic Disorders Muscular Disorders, Atrophic Muscular Diseases Musculoskeletal Diseases Neuromuscular Diseases Nervous System Diseases Genetic Diseases, Inborn Heredodegenerative Disorders, Nervous System Neurodegenerative Diseases

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Participants will receive one blinded treatment at Day 43. Treatment assignment on this day will be based on treatment received in AOC 1001-CS1 so that participants who did not receive active drug on Day 43 in AOC 1001-CS1 will received active drug on Day 43 in AOC 1001-CS2.

Study Groups

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AOC 1001

AOC 1001 will initially be administered quarterly. On Day 43 patients will receive an additional dose. Treatment assignment will be based on treatment received in AOC 1001-CS1. If participant did not receive AOC 1001 on Day 43 in AOC 1001-CS1, participant will receive AOC 1001 treatment on Day 43 in AOC 1001-CS2. Beginning in September 2024, AOC 1001 will be administered every 8 weeks.

Group Type EXPERIMENTAL

AOC 1001

Intervention Type DRUG

AOC 1001 will be administered by intravenous (IV) infusion.

AOC 1001 (with Placebo at Day 43)

AOC 1001 will initially be administered quarterly. On Day 43 patients will receive an additional dose. Treatment assignment will be based on treatment received in AOC 1001-CS1. If participant received AOC 1001 on Day 43 in AOC 1001-CS1, participant will receive blinded placebo treatment on Day 43 in AOC 1001-CS2. Beginning in September 2024, AOC 1001 will be administered every 8 weeks.

Group Type EXPERIMENTAL

Placebo

Intervention Type DRUG

Placebo will be administered by intravenous (IV) infusion.

AOC 1001

Intervention Type DRUG

AOC 1001 will be administered by intravenous (IV) infusion.

Interventions

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Placebo

Placebo will be administered by intravenous (IV) infusion.

Intervention Type DRUG

AOC 1001

AOC 1001 will be administered by intravenous (IV) infusion.

Intervention Type DRUG

Other Intervention Names

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Saline

Eligibility Criteria

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Inclusion Criteria

* Completion of AOC 1001-CS1 (MARINA) study with satisfactory compliance and no significant tolerability issues

Exclusion Criteria

* Pregnancy, intent to become pregnant, or active breastfeeding
* Unwilling or unable to continue to comply with contraceptive requirements
* Any new conditions or worsening of existing conditions that in the opinion of the investigator or sponsor would make the participant unsuitable for the study or could interfere with participation or completion of the study
Minimum Eligible Age

18 Years

Maximum Eligible Age

66 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Avidity Biosciences, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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University of California Los Angeles

Los Angeles, California, United States

Site Status

Stanford University

Palo Alto, California, United States

Site Status

University of Colorado

Denver, Colorado, United States

Site Status

University of Florida

Gainesville, Florida, United States

Site Status

Kansas University Medical Center

Kansas City, Kansas, United States

Site Status

University of Rochester Medical Center

Rochester, New York, United States

Site Status

Ohio State University

Columbus, Ohio, United States

Site Status

Virginia Commonwealth University

Richmond, Virginia, United States

Site Status

Countries

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United States

Other Identifiers

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AOC 1001-CS2

Identifier Type: -

Identifier Source: org_study_id

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