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AOC 1044

Phase 3

Muscular Dystrophies | Small molecule | Rare Disease |Avidity Biosciences, Inc.|Trials Updated: Oct 13, 2026

AOC 1044 development status

Highest phase Phase 3
Registered trials 3 across 1 sponsor since Jan 2023

AOC 1044 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_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment70

FDA Designations

No designations recorded

AOC 1044 clinical trials

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 Sites18

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:AustraliaBelgiumFranceGermanyItalyNetherlandsSpainUnited Kingdom
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Recent Changes (Last 90 Days)

LOWOct 13, 2026NCT07587242lastUpdatePostDate: changed
LOWOct 13, 2026NCT07587242lastUpdatePostDate: changed
LOWSep 29, 2026NCT07587242lastUpdatePostDate: changed
LOWSep 29, 2026NCT07587242lastUpdatePostDate: changed
LOWSep 22, 2026NCT07587242lastUpdatePostDate: changed
LOWSep 22, 2026NCT07587242lastUpdatePostDate: changed
LOWSep 16, 2026NCT07587242lastUpdatePostDate: changed
LOWSep 16, 2026NCT07587242lastUpdatePostDate: changed
LOWSep 16, 2026NCT07587242lastUpdatePostDate: changed
LOWSep 16, 2026NCT07587242lastUpdatePostDate: changed
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

Frequently asked questions about AOC 1044

What is AOC 1044 used for?

AOC 1044 is an investigational therapy being developed for Duchenne muscular dystrophy (DMD) in people with gene mutations amenable to exon 44 skipping. It is in Phase 3 clinical development and is not yet approved for any indication.

What does AOC 1044 target?

AOC 1044 targets dystrophin, the protein missing or defective in Duchenne muscular dystrophy. By targeting dystrophin production through exon 44 skipping, the therapy aims to address the underlying cause of the disease in patients with specific genetic mutations.

Who is developing AOC 1044?

AOC 1044 is being developed by Avidity Biosciences, Inc., which trades on the Nasdaq under the ticker RNAM. The company is advancing the program for muscular dystrophies, specifically Duchenne muscular dystrophy with exon 44 skipping mutations.

What phase is AOC 1044 in?

AOC 1044 is in Phase 3 clinical development. The ongoing trial is a randomized, double-blind, placebo-controlled study, indicating it has advanced to late-stage testing. It is not yet approved by the FDA or any regulatory agency.

What clinical trials is AOC 1044 in?

AOC 1044 is being evaluated in a Phase 3 study, NCT07587242, titled "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." The trial is currently recruiting and plans to enroll 70 male participants aged 7 years and older across multiple countries.

Is AOC 1044 the same as delpacibart zotadirsen?

Yes, AOC 1044 is also known as delpacibart zotadirsen. The two names refer to the same investigational therapy being developed by Avidity Biosciences for Duchenne muscular dystrophy with exon 44 skipping mutations.