CClinicalTrials.gg
RecruitingNCT06517888Updated Apr 6, 2026

Anti-VEGF Gene Therapy Trial for Vestibular Schwannoma

A Phase 1/2 interventional study of AAVAnc80-antiVEGF via Akouos Delivery Device in Vestibular Schwannoma, sponsored by Akouos, Inc.. Recruiting at 4 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-04-06.

Sponsored by Akouos, Inc. · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Started Jan 2025; still recruiting 1 year 8 months later.
Phase
Phase 1/2
Study type
Interventional
Enrollment
27
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study 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.

02

Conditions studied

  • Vestibular Schwannoma

Keywords

  • Vestibular schwannoma
  • Hearing loss
  • Acoustic neuroma
  • anti-VEGF
03

In context

Neuroma, Acoustic

98 studies on the registry are indexed under Neuroma, Acoustic; 27 are open to participants now.

This study's planned enrollment of 27 is close to the median of 27 across 66 interventional studies indexed under Neuroma, Acoustic.

Browse Neuroma, Acoustic studies →

Lead sponsor

Akouos, Inc. is the lead sponsor of 4 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

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.
05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
27 participants (estimated)

Study 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.

    Combination Product: AAVAnc80-antiVEGF via Akouos Delivery 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.

    Combination Product: AAVAnc80-antiVEGF via Akouos Delivery 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

    Combination Product: AAVAnc80-antiVEGF via Akouos Delivery Device

Interventions

  • Combination productAAVAnc80-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

06

What researchers measure

Primary outcomes

  1. Frequency of Adverse Events (AEs)

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

    Time frame: through trial completion, approximately one year

Secondary outcomes

  1. Tumor Volume

    Change from baseline in tumor size via MRI (volumetric analysis)

    Time frame: through trial completion, approximately one year

  2. Performance of Akouos Delivery Device

    Performance based on the frequency of device deficiencies observed during delivery of AAVAnc80-antiVEGF to the intracochlear space

    Time frame: through trial completion, approximately one year

07

Study locations

4 of 4 sites recruiting
  • Johns Hopkins Hospital
    Baltimore, Maryland 21205, United States
    Recruiting
  • Mayo Clinic
    Rochester, Minnesota 55905, United States
    Recruiting
  • Vanderbilt Bill Wilkerson Center
    Nashville, Tennessee 37232, United States
    Recruiting
  • University of Texas Southwestern
    Dallas, Texas 75390, United States
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 6, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06517888
Lead sponsor
Akouos, Inc.
Collaborators
Eli Lilly and Company
Responsible party
Sponsor
First posted
Jul 24, 2024
Start date
Jan 17, 2025
Primary completion
Aug 2029 (estimated)
Completion
Aug 2029 (estimated)
Last update
Apr 6, 2026

Study contacts

Akouos Clinical Trials
Contact
AkouosClinicalTrials@Lilly.com
+1 (857) 410-1816
Aaron Tward, MD
study director · Eli Lilly and Company

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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