NCT07113158

Brief Summary

The annual incidence of sudden sensorineural hearing loss (SSNHL) is 5 to 20 per 100 000 persons. The pathophysiology of SSNHL and acute vestibulo-cochlear syndromes (VCS) is unknown in more than 70% of cases. Hypothesis : an inner ear microvascular disease represents the key element in the pathogenesis of SSNHL and acute VCS. Plasma serotonin has among other tissular effect a vasospastic on microcirculation such as the inner ear microvascularisation. Increased plasma homocysteine has a deleterious effect on vascular endothelium. Inner ear microvascularisation sensitized by an increased homocysteine level and the vascular wall would vasoconstrict under serotonin stimulation inducing ischemia of the vestibular and/or cochlear organs.

Trial Health

63
Monitor

Trial Health Score

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

Enrollment
142

participants targeted

Target at P25-P50 for phase_3

Timeline
43mo left

Started Apr 2026

Typical duration for phase_3

Geographic Reach
1 country

1 active site

Status
not yet 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 Progress3%
Apr 2026Nov 2029

First Submitted

Initial submission to the registry

October 28, 2024

Completed
9 months until next milestone

First Posted

Study publicly available on registry

August 8, 2025

Completed
8 months until next milestone

Study Start

First participant enrolled

April 1, 2026

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2029

Expected
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2029

Last Updated

January 14, 2026

Status Verified

January 1, 2026

Enrollment Period

3 years

First QC Date

October 28, 2024

Last Update Submit

January 12, 2026

Conditions

Keywords

SSNHLsudden sensorineural hearing losssudden hearing lossaspirinacid folic

Outcome Measures

Primary Outcomes (1)

  • Mean PTA (mean of the change of the hearing thresholds for the 3 most affected contiguous frequencies) at D15 as defined by the AAO-HNS

    Complete recovery with return to less than 10 dB HL of the unaffected ear, no recovery : anything below 10 dB. Partial recovery is between the two extremes.

    At Day 15

Secondary Outcomes (4)

  • Maximal speech intelligibility (word recognition) score at D15, M3 and M6

    At day 15, 3 month, 6 month

  • Mean of pure tones defined as the mean PTA (mean of the change of the hearing thresholds for the 3 most affected contiguous frequencies) at M3 and M6 as defined by the AAO-HNS

    At month 3, month 6

  • Quality of life will be evaluated with THI and DHI questionnaire at D15, M3 and M6

    At day 15, month 3, month 6

  • Vestibular function assessed at D15, M3 and M6 with: • presence or absence of a spontaneous and positional nystagmus • mean gains of the vestibulo-ocular reflex measured by the vHIT

    At day 15, month 3, month 6

Study Arms (2)

Investigational medicinal products

EXPERIMENTAL

Aspirin 100 mg/day and Acid Folic 5 mg/day + gold standard treatment (oral corticosteroid therapy 1 mg/kg +/- 3 trans-tympanic injections of dexamethasone) * Corticosteroid therapy 1mg/kg/day for 7 days * 3 trans-tympanic injections of corticosteroids if hearing loss persists at D15 Duration of treatment: 3 months

Drug: Aspirin + Acid folic

Comparator treatment

PLACEBO COMPARATOR

The Placebo Aspirin 100 mg/j + Placebo folic acid 5 mg/j + reference treatment (oral corticosteroid therapy 1mg/kg +/- 3 trans-tympanic injections of dexamethasone) * Corticosteroid therapy 1mg/kg/day for 7 days * 3 trans-tympanic injections of corticosteroids if hearing loss persists at D15 Duration of treatment: 3 months

Drug: Placebo Aspirin + Placebo Acid folic

Interventions

Aspirin 100 mg/day and Acid Folic 5 mg/day + gold standard treatment

Investigational medicinal products

The Placebo Aspirin 100 mg/j + Placebo folic acid 5 mg/j + reference treatment

Comparator treatment

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Unilateral SSNHL defined as a sudden hearing loss of 30dB or greater at least three contiguous audiometric frequencies (between 125hz and 8000Hz) occurring within a 72 hr period and for less than 15 days.
  • Individuals affiliated to a social security regimen
  • Individuals able to participate and to follow up during the study period

You may not qualify if:

  • Contra-indications to Aspirin, contra-indications to oral corticosteroid therapy, contra-indications to dexamethasone, allergy to vitamin B9
  • Evident cause of acute SSNHL including tumor of the ponto-cerebellous angle, infectious labyrinthitis, mechanical and acoustic trauma, malformation of the inner ear, neurological disorder.
  • Patient already including in another clinical trial
  • Person under legal protection (under guardianship or curatorship)
  • Patients taking serotonin reuptake inhibitors
  • Patients already taking aspirin or other anticoagulant or antiplatelet agent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Lariboisière Hospital

Paris, Île-de-France Region, 75010, France

Location

MeSH Terms

Conditions

Hearing Loss, Sudden

Interventions

AspirinFolic Acid

Condition Hierarchy (Ancestors)

Hearing LossHearing DisordersEar DiseasesOtorhinolaryngologic DiseasesSensation DisordersNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

SalicylatesHydroxybenzoatesPhenolsBenzene DerivativesHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsOrganic ChemicalsPterinsPteridinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds

Central Study Contacts

Charlotte HAUTEFORT, Dr

CONTACT

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: This is a national phase III, clinical study, multicenter, comparative, randomized on 2 parallel groups, with one group control, of superiority, double blind for the patients, the investigators and the study site staff. Participants distributed between groups at a ratio of (1: 1).
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 28, 2024

First Posted

August 8, 2025

Study Start

April 1, 2026

Primary Completion (Estimated)

April 1, 2029

Study Completion (Estimated)

November 1, 2029

Last Updated

January 14, 2026

Record last verified: 2026-01

Locations