The Effects of Dexlansoprazole for the Treatment of Throat-Related Reflux

September 6, 2019 updated by: Indiana University

A Double-Blinded, Placebo-Controlled Trial to Investigate Dexlansoprazole for the Treatment of Laryngopharyngeal Reflux

Recent studies have demonstrated that patients with throat-related reflux often require twice daily proton pump inhibitor therapy to attain significant symptomatic improvement, with once daily therapy offering little relief. As dexlansoprazole is a twice-daily release proton pump inhibitor requiring only once-daily dosing, it may provide laryngopharyngeal reflux (LPR) symptomatic relief comparable to that of twice daily dosing, yet be more readily approved by third party payers because of its once daily dosing requirements. It is hypothesized that, in patients with pharyngeal-probe proven throat reflux, there will be significantly greater improvement in symptoms and pharyngeal probe findings in those patients receiving dexlansoprazole than those receiving placebo alone.

Study Overview

Status

Terminated

Conditions

Intervention / Treatment

Detailed Description

The aim of the study is to compare outcomes, based on RSI-based symptomatic improvement and pharyngeal probe results, after LPR patients are treated for two months with once-daily (QAM) Kapidex versus placebo.Forty patients with pharyngeal pH probe-documented LPR and an elevated reflux symptom index (RSI) (≥14) will be enrolled into a double-blinded placebo controlled study. Twenty patients will receive Kapidex once daily, while twenty receive placebo. Patients will return at two months for evaluation with repeat RSI documentation and repeat pharyngeal pH probe testing. Student t-test will be used to determine if the change in RSI and pH-probe results differs between the study and placebo group.

Study Type

Interventional

Enrollment (Actual)

11

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Indiana
      • Indianapolis, Indiana, United States, 46220
        • Clarian North Hospital -- IUMG Clinic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:patients with an abnormal Restech pH probe study and also have an RSI of 14 or greater will be invited to participate in the study

Exclusion Criteria:known intolerance or allergy to proton pump inhibitors, hypersecretory conditions (Zollinger-Ellison), self-reported anxiety/depression (shown to affect RSI),16 history of laryngeal irradiation, or have been on twice daily Proton pump inhibitors (PPI) therapy for greater than 2 months without symptomatic relief (with an RSI ≥14)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Dexlansoprazole
Patients who agree to participate in the study will be randomized to receive 60 mg po QAM Kapidex (1 hour AC).
Drug: dexlansoprazole
60 mg dexlansoprazole QAM (1 hour AC) for 2 months
Other Names:
  • Dexilant
Placebo Comparator: Sugar pill
Patients who agree to participate in the study will be randomized to receive 60 mg po QAM Kapidex (1 hour AC) or 1 tablet of placebo QAM (1 hour AC).
Drug: Placebo
1 tablet of placebo QAM (1 hour AC) for 2 months

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Reflux Symptom Index (RSI)
Time Frame: Baseline to 2 months
The Reflux Symptom Index (RSI) is a 9-item measure with each symptom rated from 0 (no problem) to 5 (severe problem), for a total possible range of 0 (no problem) to 45 (severe problem). An RSI of >13 is considered to be abnormal.
Baseline to 2 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Indiana University

Investigators

  • Principal Investigator: Stacey L Halum, MD, Indiana University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2011

Primary Completion (Actual)

November 1, 2013

Study Completion (Actual)

November 1, 2013

Study Registration Dates

First Submitted

March 16, 2011

First Submitted That Met QC Criteria

March 16, 2011

First Posted (Estimate)

March 17, 2011

Study Record Updates

Last Update Posted (Actual)

October 1, 2019

Last Update Submitted That Met QC Criteria

September 6, 2019

Last Verified

September 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • MSA-NC-DEX-115

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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