Recruiting
Phase 1
Phase 2

Anti-VEGF Gene Therapy

Sponsor:

Akouos, Inc.

Code:

NCT06517888

Conditions

Vestibular Schwannoma

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Interventions

AAVAnc80-antiVEGF via Akouos Delivery Device

Study Details

Brief summary:

This trial will evaluate the safety and tolerability of a single unilateral administration of one of three dose levels of AAVAnc80-antiVEGF and will evaluate the Akouos delivery device to safely achieve the intended product performance.

Conditions

Vestibular Schwannoma

Study ID

NCT06517888

Start date

Jan 17, 2025

Status verified date

Oct, 2025

Completion date

Aug, 2029

Anticipated

Primary completion date

Aug, 2029

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Criteria for Inclusion:

1. Presence of unilateral, progressive vestibular schwannoma.
2. Vestibular schwannoma larger than 2 mm.
3. Profound hearing loss, defined by pure-tone audiometry thresholds or word recognition score, in the affected ear.
4. Able and willing to comply with all trial requirements, including willingness to participate in a separate long term follow-up study after completion of this trial.

Criteria for Exclusion:

1. Prior diagnosis of NF2 and/or bilateral vestibular schwannoma.
2. Prior surgery or radiation therapy for vestibular schwannoma.
3. Clinical history consistent with endolymphatic hydrops (documented fluctuating sensorineural hearing loss and/or episodic vertigo) in the affected ear.
4. Profound hearing loss, defined by pure-tone audiometry thresholds or word recognition score, in the unaffected ear.
5. Prior participation in a clinical trial with an investigational drug within six months prior to administration (Day 0), or any prior participation in a gene therapy clinical trial.

Study Design

Enrollment

27 participants

Anticipated

Allocation

Non randomized

Intervention Model

Sequential

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

experimental: Cohort 1

Adult participants to receive a single unilateral intracochlear administration of AAVAnc80-antiVEGF (dose level 1) in the study ear using a sterile, one-time use investigational medical device.

experimental: Cohort 2

Adult participants to receive a single unilateral intracochlear administration of AAVAnc80-antiVEGF (dose level 2) in the study ear using a sterile, one-time use investigational medical device.

experimental: Cohort 3

Adult participants to receive a single unilateral intracochlear administration of AAVAnc80-antiVEGF (dose level 3) in the study ear using a sterile, one-time use investigational medical device

Interventions

AAVAnc80-antiVEGF via Akouos Delivery Device

AAVAnc80-antiVEGF is a sterile suspension intended to be administered via intracochlear administration as a single dose using the Akouos Delivery Device

Primary outcome measure

  • Frequency of Adverse Events (AEs) [ Time Frame: through trial completion, approximately one year ]

Central Contacts and Locations

Central contacts

Locations

Johns Hopkins Hospital

Recruiting

Baltimore, Maryland, United States, 21205

Contacts

Mayo Clinic

Recruiting

Rochester, Minnesota, United States, 55905

Contacts

Vanderbilt Bill Wilkerson Center

Recruiting

Nashville, Tennessee, United States, 37232

Contacts

University of Texas Southwestern

Recruiting

Dallas, Texas, United States, 75390

Contacts

More Information

Sponsor

Akouos, Inc.

Last update posted

Apr 6, 2026

Last verified

Oct, 2025

Keywords

  • Vestibular schwannoma
  • Hearing loss
  • Acoustic neuroma
  • anti-VEGF

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-09. This information was provided to ClinicalTrials.gov by Akouos, Inc. on 2026-04-06.