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Adjuvant topiramate in idiopathic sudden sensorineural hearing loss

Role of adjuvant topiramate in idiopathic sudden sensorineural hearing loss: A randomized, placebo controlled study

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
TCTR
Registry ID
TCTR20230704002
Enrollment
130
Registered
2023-07-04
Start date
2023-07-31
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sudden sensorineural hearing loss (SSNL) sudden, sensorineural hearing loss

Interventions

Topiramate will be prescribed for 12 weeks in total (Start 25 mg at week 1 then 50 mg at week 2 and escalate to a maximum dose of 75 mg at week 3 with 8-week maintenance to week 10 then de-escalate 25
Active Comparator Drug,Placebo Comparator Drug
topiramate,placebo

Sponsors

Faculty of Medicine, Prince of Songkla University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1 Patient aged at 18 to 65 years diagnosed with idiopathic SSNHL in Songkhlanagarind hospital (SNHL is defined as a 30 dB or greater sensorineural loss over 3 contiguous frequencies occurring within 3 days ) 2 Patient with BMI > 18.5 (Not underweight according to WHO Asian BMI Classification) 3 Hearing impairment level is at least a mild degree according to WHO classification

Exclusion criteria

Exclusion criteria: Patients with known causes of SSNHL such as labyrinthitis, acoustic tumor etc. Patients with bilateral sudden SSNHL Patient who cannot communicate in Thai language Antecedent fluctuating hearing loss Concurrent severe bilateral vestibular loss with oscillopsia Recent head trauma, barotrauma, or acoustic trauma Previous head and neck radiotherapy Previous ear surgery and middle ear disorder such as chronic otitis media etc. Patient with Sulfa drug allergy and gelatin allergy Patient who was already receiving corticosteroid or migraine preventive medication (Topiramate, Amitriptyline, Propranolol, Flunarizine, Valproate) Patient with G6PD deficiency Patients with leukemia, hemodialysis, or who received previous chemotherapy Pregnancy or trying to become pregnant or Breastfeeding women Patients with major depression disorder or suicide attempt Patients with glaucoma Patients with liver diseases (AST or ALT > 100 IU/L) or renal diseases (GFR < 90 ml/min) Patients with renal stones or history of urinary RBC at 3 or more per HPF Patients whose jobs are related to machines Patients allergic to either topiramate, carbonic anhydrase inhibitor, omeprazole, prednisolone, or methylprednisolone Patients with history of neurocognitive dysfunction or decreased mental function Patients with history of autonomic nervous system dysfunction

Design outcomes

Primary

MeasureTime frame
hearing levels 12th week audiometry in decibel hearing level

Secondary

MeasureTime frame
Prevalence At the end of the study Excel

Countries

Thailand

Contacts

Public ContactPittayapon Pitathawatchai

Faculty of Medicine, Prince of Songkla University

pittayapon.p@psu.ac.th074451394

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026