Evaluation of Vitamin D in Sudden Hearing Loss

Evaluation of the effect of adding vitamin D to routine treatment of patients with Sudden Sensory-Neural Hearing Loss (SSNHL) with vitamin D deficiency and comparison with placebo group with routine treatment vitamin D deficiency

Status

Recruiting

Phases

Phase 3

Study type

Interventional

Source

IRCT

Registry ID

IRCT20211125053181N1

Enrollment

Registered

2022-06-26

Start date

2021-12-22

Completion date

Unknown

Last updated

2022-08-29

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

Conditions

Sudden Sensory-Neural Hearing Loss (SSNHL). Sudden idiopathic hearing loss, unspecified ear

Interventions

Intervention 1: Control group: SSNHL patients with vitamin D deficiency who receive placebo. Intervention 2: Intervention group: SSNHL patients with vitamin D deficiency who receive Pearl 50,000 IU vi

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Existence of sudden sensorineural hearing loss based on audiometry Informed consent The first month of illness Unilateral hearing loss Normal calcium and phosphorus levels Age over 18 years

Exclusion criteria

Exclusion criteria: Existence of acute middle ear infection Existence of Meniere disease History of trauma to the ear History of ear surgery More than a month passed since the onset of hearing loss Alcohol and smoking Using vitamin supplements Present Heart disease, hypertension, Renal disease, liver disease and diabetes Corticosteroids in the last two weeks

Design outcomes

Primary

Measure	Time frame
Hearing threshold in audiometry. Timepoint: on the first day of study, on the 10th day, on the 30th day. Method of measurement: pure tone audiometry.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactSohrab Rabiei

Esfahan University of Medical Sciences

sohrabrabiei@gmail.com36688597

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026