NCT03079999

Brief Summary

This is a phase II prospective, randomized, double-blind, longitudinal study evaluating whether the administration of aspirin can delay or slow tumor growth and maintain or improve hearing in VS patients.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
97

participants targeted

Target at P50-P75 for phase_2

Timeline
34mo left

Started Jun 2018

Longer than P75 for phase_2

Geographic Reach
1 country

5 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress74%
Jun 2018Feb 2029

First Submitted

Initial submission to the registry

March 6, 2017

Completed
9 days until next milestone

First Posted

Study publicly available on registry

March 15, 2017

Completed
1.2 years until next milestone

Study Start

First participant enrolled

June 11, 2018

Completed
8.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2026

Expected
2.5 years until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2029

Last Updated

December 18, 2025

Status Verified

December 1, 2025

Enrollment Period

8.1 years

First QC Date

March 6, 2017

Last Update Submit

December 16, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Progression Free Survival

    Progression Free Survival (PFS) is the length of time from start of study treatment to tumor growth of more than 20%.

    Progression, or around 3.5 years

Study Arms (2)

Aspirin

EXPERIMENTAL

Patients on the experimental arm will receive blinded aspirin. Pediatric subjects who weigh less than 110 lbs will take 81mg aspirin twice a day. All other subjects will take 325mg aspirin twice a day.

Drug: Aspirin

Placebo

PLACEBO COMPARATOR

Patients on the placebo arm will receive blinded placebo and take it twice a day.

Drug: Placebo

Interventions

Twice daily aspirin

Also known as: Zoprin, Durlaza, Bayer
Aspirin

Twice daily placebo

Placebo

Eligibility Criteria

Age12 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Radiographic diagnosis of vestibular schwannoma (NF2-associated or sporadic).
  • Age≥12 years.
  • Ability to provide informed consent.Pediatric patients must provide assent in addition to their parents'/guardians' consent. Adult patients who cannot consent for themselves will not be eligible to participate in this study.
  • Ability to swallow tablets.

You may not qualify if:

  • Inability to perform volumetric measurements of vestibular schwannoma(s).
  • Inability to tolerate MRI with contrast.
  • Known allergy to aspirin.
  • Impairment of gastrointestinal function or gastrointestinal disease that may significantly alter the absorption of aspirin.
  • Pregnant or lactating women.
  • Patients with serious medical illnesses (e.g. severe asthma) that in the option of the investigator could prevent participation in the trial.
  • Active bleeding diathesis.
  • Hydrocephalus from brainstem compression.
  • Febrile illness or flu-like illness in children and adolescents less than 18 years of age.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (5)

Stanford Otolaryngology/HNS

Stanford, California, 94304, United States

Location

University of Miami

Miami, Florida, 33136, United States

Location

Massachusetts Eye and Ear

Boston, Massachusetts, 02114, United States

Location

Mayo Clinic

Rochester, Minnesota, 55905, United States

Location

University of Utah

Salt Lake City, Utah, 84101, United States

Location

MeSH Terms

Conditions

Neuroma, AcousticNeurofibromatosis 2

Interventions

Aspirin

Condition Hierarchy (Ancestors)

NeurilemmomaNeuroendocrine TumorsNeuroectodermal TumorsNeoplasms, Germ Cell and EmbryonalNeoplasms by Histologic TypeNeoplasmsNeuromaNerve Sheath NeoplasmsNeoplasms, Nerve TissueCranial Nerve NeoplasmsNervous System NeoplasmsNeoplasms by SitePeripheral Nervous System NeoplasmsVestibulocochlear Nerve DiseasesRetrocochlear DiseasesEar DiseasesOtorhinolaryngologic DiseasesOtorhinolaryngologic NeoplasmsCranial Nerve DiseasesNervous System DiseasesNeurofibromatosesNeurofibromaNeoplastic Syndromes, HereditaryNeurocutaneous SyndromesHeredodegenerative Disorders, Nervous SystemNeurodegenerative DiseasesGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Intervention Hierarchy (Ancestors)

SalicylatesHydroxybenzoatesPhenolsBenzene DerivativesHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsOrganic Chemicals

Study Officials

  • Konstantina Stankovic, MD, PhD

    Stanford University

    PRINCIPAL INVESTIGATOR
  • D. Bradley Welling, MD, PhD

    Massachusetts Eye and Ear

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: In the Randomized Treatment Phase, patients aged 12 years or older with VSs will be identified and recruited into one of two randomized groups who receive either 1) 325 mg aspirin twice daily (81 mg aspirin twice daily for pediatric patients \<50 kg); or 2) a placebo. Patients will stay on aspirin/placebo as long as there is no more than 20% increase in VS volume. At tumor progression, patients will enter the Open Label Follow Up Phase. Patients who progress on placebo will receive unblinded aspirin. Patients who progress on aspirin (either blinded or unblinded) will be taken off study drug and followed. All patients will be followed for at least 3.5 years after randomization.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Walter Augustus Lecompte Distinguished Professor Harvard Department of Otolaryngology-Head and Neck Surgery

Study Record Dates

First Submitted

March 6, 2017

First Posted

March 15, 2017

Study Start

June 11, 2018

Primary Completion (Estimated)

August 1, 2026

Study Completion (Estimated)

February 1, 2029

Last Updated

December 18, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Locations