This trial is active, not recruiting.

Conditions extra esophageal symptoms:, cough, throat clearing, hoarseness, difficulty swallowing
Treatment proton pump inhibitor
Phase phase 2
Sponsor National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Start date May 2004
End date November 2012
Trial size 500 participants
Trial identifier NCT00695227, DK066165-02, K23 DK66165 (completed)


The purpose of this project is to develop an accurate method to identify patients that suffer from acid reflux, but may not present with classic reflux symptoms (such as heart burn). Additionally, it is the purpose of this project to utilize the Unsedated Small-caliber Endoscopy (USE) to assess the prevalence of Barrett's esophagus in a population of patients with laryngopharyngeal reflux (LPR) symptoms and to define normal patterns of LPR. Laryngopharyngeal reflux (LPR) is when a small amount of stomach contents and acid are pushed up through the esophagus and may affect the vocal cords and upper respiratory tract.

It is suspected that patients with LPR symptoms may have a prevalence of Barrett's esophagus similar to that found in a population with typical reflux symptoms. We propose to systematically test this hypothesis using the USE.

This project is designed to improve the methods of identifying patients with a form of acid reflux that is often undetected, and thus untreated. If this project is successful then more patients with Barrett's esophagus will be identified; furthermore, screening and treatment for this pre-cancerous condition will be improved.

United States No locations recruiting
Other countries No locations recruiting

Study Design

Allocation non-randomized
Endpoint classification efficacy study
Intervention model single group assignment
Masking open label
Primary purpose treatment

Primary Outcomes

The primary aim of the study is to establish that patients with symptoms of LPR who are referred to an otolaryngology clinic have a prevalence of Barrett's metaplasia equivalent to that of a population with GERD symptoms.
time frame: One time

Eligibility Criteria

Male or female participants from 18 years up to 90 years old.

Inclusion Criteria: - Exclusion Criteria: - Prior anti-reflux surgery, laryngeal surgery, trauma to larynx Esophageal diverticulum Pregnancy Anticoagulation therapy Esophageal varices ENT malignancy History of recurrent epistaxis

Additional Information

Official title Screening for Barrett's Esophagus in Otolaryngology Patients
Principal investigator Joshua Schindler, MD
Trial information was received from ClinicalTrials.gov and was last updated in May 2011.
Information provided to ClinicalTrials.gov by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK).