Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 18 to 70

Hydroxychloroquine added to steroids for sudden hearing loss

Official title: Efficacy and Safety of Hydroxychloroquine in the Treatment of Sudden Sensorineural Hearing Loss

Run by Chang Gung Memorial Hospital · NCT06467526 · Data updated 2026-11-12

This trial tests whether adding hydroxychloroquine to standard steroid treatment helps improve hearing in adults with sudden sensorineural hearing loss.

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 70 Years
SexAll
Enrollment80 (estimated)
SponsorChang Gung Memorial Hospital
Academic / other
Drugs / interventionschemotherapy, radiation
Locations1 site (Kaohsiung City)
StatusRecruiting
StartedSeptember 10, 2024
Main results expectedDecember 31, 2026
Study endsMarch 31, 2027
Registry record updatedOctober 22, 2026
Trial IDNCT06467526 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18–70 with unilateral idiopathic SSNHL presenting within 3 days and eligible for steroid therapy.

Probably not a fit

Patients with factors listed in exclusion criteria (e.g., pregnancy, prior ear conditions, certain autoimmune or inflammatory diseases) or those who do not respond to steroids may not benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This phase 2 interventional trial randomizes adults with unilateral idiopathic SSNHL to receive either prednisolone alone or prednisolone plus hydroxychloroquine for about two months. The primary outcome is the change in pure-tone average hearing in the affected ear over 3 months. Secondary outcomes include the change in hearing in both ears. The study uses standard steroid therapy as the control and adds hydroxychloroquine in the experimental arm to see if it can enhance recovery and assess safety in this patient population.

Why it matters

Potential benefit: If successful, patients could experience greater improvement in hearing when hydroxychloroquine is combined with steroids.

How similar studies have gone: Other studies exploring immune-modulating approaches for SSNHL have yielded mixed results; this trial tests a novel combination with steroids.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Unilateral idiopathic sudden sensorineural hearing loss ≥ 30 dB in at least 3 consecutive frequencies, compared to the contralateral ear, within 3 days
2. Enrollment has to be accomplished within 14 days after SSNHL onset
3. Male or female aged ≥ 18 to 70 years
4. Ability to understand and follow the study protocol

Exclusion Criteria:

1. Pregnant or breast-feeding female
2. positive pregnancy test before receiving the study drug
3. Due to a history of physical efforts suspected perilymph fistula or membrane rupture.
4. Previously existing, known retrocochlear hearing loss
5. Any history of any ear operation or chronic inflammatory disease of middle ear in the past one year
6. History of blunt or penetrating ear trauma, head trauma, barotrauma, or acoustic trauma immediately preceding SSHL.
7. History of Meniere's disease, autoimmune hearing loss, radiation-induced hearing loss, endolymphatic hydrops, and otosclerosis.
8. History of chronic inflammatory diseases or autoimmune diseases
9. Prior chemotherapy or treatment with immunosuppressant drugs
10. Patients on renal dialysis
11. Patients with history of retinopathy, or are using drugs that could induce retinopathy, such as Tamoxifen
12. History of allergy to hydroxychloroquine
13. Patients who are contraindicated with oral steroid treatment

Where it's running

  • Kaohsiung Chang Gung Memorial Hospital
    Kaohsiung City, Taiwan
    Recruiting

Study contacts

  • Principal investigator: Chao-Hui Yang — Chang Gung Memorial Hospital
  • Study coordinator: Chao-Hui Yang, MD,PhD
  • Email: chouwhay@gmail.com
  • Phone: 88677317123

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.