# Efficacy of Dx-pH Probe in Diagnosing Extra-esophageal Reflux Disease

> **NCT00388453** · NA · COMPLETED · sponsor: **Vanderbilt University Medical Center** · enrollment: 47 (actual)

## Conditions studied

- GERD
- Larynx Disease

## Interventions

- **DEVICE:** Dx-pH Probe
- **PROCEDURE:** Manometry

## Key facts

- **NCT ID:** NCT00388453
- **Lead sponsor:** Vanderbilt University Medical Center
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2006-10
- **Primary completion:** 2012-09
- **Final completion:** 2013-07
- **Target enrollment:** 47 (ACTUAL)
- **Last updated:** 2017-06-27


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00388453

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00388453, "Efficacy of Dx-pH Probe in Diagnosing Extra-esophageal Reflux Disease". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT00388453. Licensed CC0.

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