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AAVAnc80-hOTOF via Akouos Delivery Device

Phase 1

Sensorineural Hearing Loss, Bilateral | Gene therapy | ENT |Eli Lilly and Company|Last Updated: Mar 4, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment22
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05821959Gene Therapy Trial for Otoferlin Gene-mediated Hearing LossPHASE1 RECRUITING 22Sep 15, 2023Oct 1, 2028Mar 4, 20269 United States, Canada +2
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Study Endpoints
Primary Endpoints
Frequency of Adverse Events (AEs)
through trial completion, approximately 1 year

AEs with relationship to the investigational medicinal product and/or to the administration procedure (including the delivery system)

Secondary Endpoints
Auditory Brainstem Response (ABR) Threshold
through trial completion, approximately 1 year
Performance of the Akouos Delivery Device and Precision Delivery Mechanism
through trial completion, approximately 1 year
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Cohort 1a and Cohort 1bEXPERIMENTALCohort 1a: Two participants aged 7 to 17 years old (inclusive) to receive intracochlear administration of AAVAnc80-hOTOF (dose level 1) in the study ear using a sterile, one-time use investigational medical device Cohort 1b: Up to six eligible participants will be enrolled to receive intracochlear administration of AAVAnc80-hOTOF (dose level 1) in the study ear using a sterile, one-time use investigational medical device; the first three participants will be at least two years of age at the time of AAVAnc80-hOTOF administration and the next three participants may be of any age
Cohort 2EXPERIMENTALCohort 2: Up to six eligible participants will be enrolled to receive intracochlear administration of AAVAnc80-hOTOF (dose level 2) in the study ear using a sterile, one-time use investigational medical device; the first three participants will be at least two years of age at the time of AAVAnc80-hOTOF administration and the next three participants may be of any age
Bilateral ExpansionEXPERIMENTALBilateral Expansion: up to eight eligible participants of any age, and no cochlear implants, may be eligible for enrollment into the Bilateral Expansion Cohort (simultaneous bilateral administration of AAVAnc80-hOTOF).
Interventions
NameTypeDescription
AAVAnc80-hOTOF via Akouos Delivery DeviceCOMBINATION_PRODUCTAAVAnc80-hOTOF is a sterile suspension intended to be administered via a one-time unilateral intracochlear administration using the Akouos Delivery Device.
AAVAnc80-hOTOF via Akouos Delivery Device and Precision Delivery MechanismCOMBINATION_PRODUCTAAVAnc80-hOTOF is a sterile suspension intended to be administered via a one-time bilateral intracochlear administration using the Akouos Delivery Device together with the Precision Delivery Mechanism.
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Eligibility Criteria
SexALL
Healthy VolunteersNo
Study Sites9

Criteria for Inclusion: 1. Participants may be of any age, based on Cohort Criteria 2. At least two mutations in the otoferlin gene 3. Clinical presentation of Profound bilateral sensorineural hearing loss as assessed by ABR 4. Preserved distortion product otoacoustic emissions (DPOAEs) 5. Able and...

Countries:United StatesCanadaTaiwanUnited Kingdom
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT05821959primaryCompletionDate: changed
LOWMay 24, 2026NCT05821959studyFirstPostDate: changed