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AOC 1044

Phase 3

Muscular Dystrophies | Small molecule | Rare Disease |Avidity Biosciences, Inc.|Last Updated: Sep 8, 2026

Target and mechanism

Molecular targetdystrophin
Target classProtein
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment70

FDA Designations

No designations recorded

Clinical trial landscape

AOC 1044 · 1 trial · 14 indications

Phase 3 1
NCT07587242A Phase 3 Study to Evaluate the Safety and Efficacy of AOC 1044 (Also Referred to as Delpacibart Zotadirsen) in Participants With DMD With Gene Mutations Amenable to Exon 44 SkippingMuscular Dystrophies
RECRUITING70 Analytics
PHASE3RECRUITING
A Phase 3 Study to Evaluate the Safety and Efficacy of AOC 1044 (Also Referred to as Delpacibart Zotadirsen) in Participants With DMD With Gene Mutations Amenable to Exon 44 Skipping
Muscular DystrophiesUnlock trial analytics

Study Endpoints

Primary Endpoints

Change from Baseline in Time to Rise (TTR) Velocity at Week 54
Baseline, Week 54

Secondary Endpoints

Change from Baseline in Creatine Kinase (CK) at Week 54
Baseline, Week 54
Change from Baseline in 4-Stair Climb (4SC) Velocity at Week 54
Baseline, Week 54
Change from Baseline in 10-Meter Walk/Run Test (10MWRT) Velocity at Week 54
Baseline, Week 54
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
AOC 1044EXPERIMENTALParticipants will receive AOC 1044 intravenously (IV) every 6 weeks (Q6W) during the 54-week double-blind treatment period, followed by a 54-week open-label treatment period in which the same participants will continue to receive AOC 1044 IV Q6W
PlaceboPLACEBO_COMPARATORParticipants will receive placebo (saline) IV Q6W during the 54-week double-blind treatment period, followed by a 54-week open-label treatment period in which all participants will then receive AOC 1044 IV Q6W

Interventions

NameTypeDescription
AOC 1044DRUGAOC 1044 will be administered by intravenous (IV) infusion
PlaceboDRUGPlacebo will be administered by intravenous (IV) infusion
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Eligibility Criteria

Age Range7 Years to 16 Years
SexMALE
Healthy VolunteersNo
Study Sites13

Key Inclusion Criteria: * Ambulatory males with clinical and genetic diagnosis of DMD * Acceptable genetic test confirming dystrophin gene mutation amenable to exon 44 skipping * 7 to 16 years of age at time of consent * TTR and NSAA assessment completed within the protocol specified parameters at ...

Countries:BelgiumFranceGermanyItalySpainUnited Kingdom
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Recent Changes (Last 90 Days)

LOWSep 8, 2026NCT07587242startDate: changed
LOWSep 8, 2026NCT07587242startDate: changed
LOWAug 24, 2026NCT07587242lastUpdatePostDate: changed
LOWAug 24, 2026NCT07587242lastUpdatePostDate: changed
LOWAug 17, 2026NCT07587242lastUpdatePostDate: changed
LOWAug 17, 2026NCT07587242lastUpdatePostDate: changed
LOWAug 11, 2026NCT07587242lastUpdatePostDate: changed
LOWAug 11, 2026NCT07587242lastUpdatePostDate: changed
LOWAug 4, 2026NCT07587242Status: NOT_YET_RECRUITING → RECRUITING
LOWAug 4, 2026NCT07587242Status: NOT_YET_RECRUITING → RECRUITING
LOWJul 13, 2026NCT07587242lastUpdatePostDate: changed
LOWJul 13, 2026NCT07587242lastUpdatePostDate: changed

Frequently asked questions about AOC 1044

What is AOC 1044 used for?

AOC 1044, also known as delpacibart zotadirsen, is an investigational therapy for Duchenne muscular dystrophy (DMD) in patients with gene mutations amenable to exon 44 skipping. It is being studied in a Phase 3 clinical trial for this rare genetic muscle disease.

What does AOC 1044 target?

AOC 1044 targets dystrophin, a protein that is deficient or defective in Duchenne muscular dystrophy. The therapy is designed to address the underlying genetic cause of the disease by promoting exon 44 skipping, which aims to restore dystrophin production.

Who makes AOC 1044?

AOC 1044 is being developed by Avidity Biosciences, Inc., a biopharmaceutical company traded on the stock exchange under the ticker RNAM. The company is conducting clinical research on this investigational drug for Duchenne muscular dystrophy.

What phase is AOC 1044 in?

AOC 1044 is currently in Phase 3 clinical development. It is an investigational drug, meaning it has not been approved by regulatory authorities and is still being evaluated for safety and efficacy in clinical trials.

What clinical trials is AOC 1044 in?

AOC 1044 is being studied in a Phase 3 clinical trial registered as NCT07587242. This randomized, double-blind, placebo-controlled study is recruiting approximately 70 male participants aged 7 years and older with Duchenne muscular dystrophy amenable to exon 44 skipping. The trial is enrolling in Belgium, France, Germany, Italy, Spain, and the United Kingdom.

Is AOC 1044 the same as delpacibart zotadirsen?

Yes, AOC 1044 is also referred to as delpacibart zotadirsen. Both names refer to the same investigational drug being developed by Avidity Biosciences for Duchenne muscular dystrophy with mutations amenable to exon 44 skipping.