# Intranasal Retinoic Acid Treatment for Patients With OlfactoryLOSS: A RANDOMIZED CONTROLLED TRIAL

> **NCT03574701** · NA · UNKNOWN · sponsor: **St. Paul's Hospital, Canada** · enrollment: 120 (estimated)

## Conditions studied

- Olfactory Disorder

## Interventions

- **DIETARY_SUPPLEMENT:** Vitamin A

## Key facts

- **NCT ID:** NCT03574701
- **Lead sponsor:** St. Paul's Hospital, Canada
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2016-05-25
- **Primary completion:** 2021-12-25
- **Final completion:** 2022-12-25
- **Target enrollment:** 120 (ESTIMATED)
- **Last updated:** 2019-09-19


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03574701

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03574701, "Intranasal Retinoic Acid Treatment for Patients With OlfactoryLOSS: A RANDOMIZED CONTROLLED TRIAL". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT03574701. Licensed CC0.

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