# Method of Early Diagnosis of Laryngopharyngeal Reflux

> **NCT04771221** · NA · COMPLETED · sponsor: **Kazakh Medical University of Continuing Education** · enrollment: 385 (actual)

## Conditions studied

- Laryngopharyngeal Reflux
- Laryngopharyngitis Chronic
- Gastro Esophageal Reflux
- Laryngitis

## Interventions

- **DIAGNOSTIC_TEST:** pH metry
- **DIAGNOSTIC_TEST:** Filling out the questionnaire
- **DEVICE:** Endoscopic laryngoscopy
- **DEVICE:** Acoustic voice analysis

## Key facts

- **NCT ID:** NCT04771221
- **Lead sponsor:** Kazakh Medical University of Continuing Education
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-01-10
- **Primary completion:** 2022-02-15
- **Final completion:** 2022-02-15
- **Target enrollment:** 385 (ACTUAL)
- **Last updated:** 2023-01-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04771221

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04771221, "Method of Early Diagnosis of Laryngopharyngeal Reflux". Retrieved via AI Analytics 2026-07-07 from https://api.ai-analytics.org/clinical/NCT04771221. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*