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ClinicalTrials.gov public records Last synced Oct 6, 2026, 11:48 PM EDT

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Showing 25–48 of 113 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Proton Pump Inhibitor (PPI) Therapy Clear all
Not listed Phase 2 Interventional

Masitinib for the Treatment of Severe Mast Cell Activation Syndrome

NCT05449444
View directory record Official record
Conditions
Mast Cell Activation Syndrome
Interventions
Masitinib 4.5 mg/kg/day, Placebo, Best supportive care, Masitinib 6.0 mg/kg/day
Drug · Other
Lead sponsor
AB Science
Industry
Eligibility
18 Years to 75 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Weldon Spring, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 6, 2023 · Synced Oct 6, 2026, 11:48 PM EDT
Completed No phase listed Observational

To Learn How Bone Structure and Bone Mass Change After Long-term PPI Use

NCT01306799
View directory record Official record
Conditions
Barrett's Esophagus, Erosive Esophagitis, Gastroesophageal Reflux Disease(GERD)
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
40 Years to 75 Years
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 30, 2017 · Synced Oct 6, 2026, 11:48 PM EDT
Withdrawn Phase 2 Interventional

A Phase II Trial of Proton Pump Inhibitors With Chemotherapy in Patients With Metastatic Head and Neck Cancer

NCT02013453
View directory record Official record
Conditions
Cancer of Head and Neck
Interventions
Omeprazole, Carboplatin, 5FU, Paclitaxel, Pemetrexed
Drug
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 2, 2014 · Synced Oct 6, 2026, 11:48 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of Acalabrutinib Suspension to Evaluate Relative Bioavailability and Proton-pump Inhibitor Effect in Healthy Volunteers

NCT04435483
View directory record Official record
Conditions
Pharmacokinetics, Bioavailability
Interventions
Acalabrutinib Treatment A, Acalabrutinib Treatment B, Acalabrutinib Treatment C
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 55 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Glendale, California
Source: ClinicalTrials.gov public record
Updated Jul 22, 2020 · Synced Oct 6, 2026, 11:48 PM EDT
Completed Phase 2Phase 3 Interventional Results available

The Role Of Gastroesophageal Reflux Disease (GERD) in Eosinophilic Esophagitis

NCT00728481
View directory record Official record
Conditions
Eosinophilic Esophagitis, Gastroesophageal Reflux Disease, EE, GERD
Interventions
Esomeprazole, Budesonide
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 14, 2016 · Synced Oct 6, 2026, 11:48 PM EDT
Completed Phase 3 Interventional Results available

ERADICATE Hp - Treating Helicobacter Pylori With RHB-105

NCT01980095
View directory record Official record
Conditions
Dyspepsia, Helicobacter Pylori Infection
Interventions
RHB-105, Placebo
Drug
Lead sponsor
RedHill Biopharma Limited
Industry
Eligibility
18 Years to 65 Years
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
12
States / cities
Anaheim, California • Chino, California • Jupiter, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Sep 24, 2019 · Synced Oct 6, 2026, 11:48 PM EDT
Completed Phase 4 Interventional Results available

Impact of Timing on the Efficacy of Zegerid 40 mg in Healing Reflux Esophagitis: A Pilot Study

NCT00693225
View directory record Official record
Conditions
Erosive Esophagitis
Interventions
Omeprazole/sodium bicarbonate
Drug
Lead sponsor
Yvonne Romero
Other
Eligibility
18 Years and older
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 20, 2012 · Synced Oct 6, 2026, 11:48 PM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy Study of Viokase® 16 for the Correction of Steatorrhea

NCT00559364
View directory record Official record
Conditions
Exocrine Pancreatic Insufficiency, Chronic Pancreatitis, Pancreatectomy
Interventions
Viokase® 16, Placebo, Proton pump inhibitor (PPI), Omeprazole
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Mar 16, 2017 · Synced Oct 6, 2026, 11:48 PM EDT
Completed Not applicable Interventional Results available

Study of the Efficiency of Esophageal Dilation on Patient With Eosinophilic Esophagitis

NCT00880906
View directory record Official record
Conditions
Suspected Eosinophilic Esophagitis
Interventions
Esophageal dilation, Steroid and Proton Pump Inhibitor Therapy
Procedure · Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 6, 2017 · Synced Oct 6, 2026, 11:48 PM EDT
Withdrawn Phase 2 Interventional

Whether Proton Pump Inhibitors, Administered Prior to or After Surgery, Can Reduce the Incidence and/or Severity of Difficulty Swallowing Foods and/or Liquids,Following Anterior Cervical Surgery

NCT03488147
View directory record Official record
Conditions
Dysphagia, GERD, Degenerative Joint Disease
Interventions
Esomeprazole, Placebo Oral Tablet
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 23, 2020 · Synced Oct 6, 2026, 11:48 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug Interaction Study To Investigate The Potential Effect Of Proton Pump Inhibitor On The Pharmacokinetics Of Palbociclib (PD-0332991)

NCT01918176
View directory record Official record
Conditions
Healthy
Interventions
Palbociclib alone, Palbociclib + Rabeprazole
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
South Miami, Florida
Source: ClinicalTrials.gov public record
Updated Oct 8, 2015 · Synced Oct 6, 2026, 11:48 PM EDT
Withdrawn Not applicable Interventional

Peroral Endoscopic Myotomy Versus Botulinum Toxin Injection in Spastic Esophageal Disorders

NCT02663206
View directory record Official record
Conditions
Esophageal Achalasia, Esophageal Spasm, Diffuse, Esophageal Motility Disorders
Interventions
peroral endoscopic myotomy, Botulinum toxin injection
Procedure
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 12, 2018 · Synced Oct 6, 2026, 11:48 PM EDT
Active, not recruiting Not applicable Interventional

Reflux Band in Laryngopharyngeal Reflux

NCT04827355
View directory record Official record
Conditions
Laryngopharyngeal Reflux
Interventions
External Upper Esophageal Sphincter (UES) Compression Device, Sham Device
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 99 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Apr 8, 2025 · Synced Oct 6, 2026, 11:48 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Relative Bioavailability Study Evaluating Two New Encorafenib Formulations

NCT05446142
View directory record Official record
Conditions
Healthy
Interventions
Encorafenib capsule formulation (CAP), Encorafenib first formulation, Encorafenib second formulation, Rabeprazole tablet
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 23, 2024 · Synced Oct 6, 2026, 11:48 PM EDT
Terminated Phase 2 Interventional Results available

Fexofenadine Use in Gastroesophageal Reflux Symptoms

NCT03425097
View directory record Official record
Conditions
Gastroesophageal Reflux
Interventions
Fexofenadine, Placebo - Cap
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 90 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Redwood City, California
Source: ClinicalTrials.gov public record
Updated Feb 17, 2021 · Synced Oct 6, 2026, 11:48 PM EDT
Completed Not applicable Interventional

Sponge and Eosinophil Peroxidase (EPO) Staining

NCT03078023
View directory record Official record
Conditions
Eosinophilic Esophagitis
Interventions
swallowed sponge device
Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 15, 2022 · Synced Oct 6, 2026, 11:48 PM EDT
Withdrawn Not applicable Interventional

Proton Pump Inhibitor Therapy for Mild to Moderate Obstructive Sleep Apnea

NCT00211614
View directory record Official record
Conditions
Obstructive Sleep Apnea, Gastroesophageal Reflux
Interventions
Lansoprazole
Drug
Lead sponsor
MetroHealth Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 10, 2018 · Synced Oct 6, 2026, 11:48 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

PPI and Clopidogrel Response

NCT01170533
View directory record Official record
Conditions
Drug Interaction
Interventions
omeprazole and pantoprazole
Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 6, 2012 · Synced Oct 6, 2026, 11:48 PM EDT
Not listed Phase 4 Interventional

Proton Pump Inhibitor (PPI) Response in Eosinophilic Esophagitis Assessed by Transnasal Endoscopy (TNE)

NCT04149470
View directory record Official record
Conditions
Eosinophilic Esophagitis
Interventions
Omeprazole 20mg BID
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
8 Years to 22 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 3, 2024 · Synced Oct 6, 2026, 11:48 PM EDT
Not yet recruiting Not applicable Interventional

A Comparison of Cosmos Rx Medication Adherence Platform vs. Pharmacy Fill Adherence Measures

NCT07712614
View directory record Official record
Conditions
GERD (Gastroesophageal Reflux Disease)
Interventions
Fortiskap
Device
Lead sponsor
Cosmos Rx, Inc
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Salisbury, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 17, 2026 · Synced Oct 6, 2026, 11:48 PM EDT
Terminated No phase listed Observational

Proton Pump Inhibitor Therapy and Bone Density in Premature Infants

NCT00888017
View directory record Official record
Conditions
Osteopenia, Prematurity
Interventions
Not listed
Lead sponsor
University of Utah
Other
Eligibility
Not listed
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jan 23, 2013 · Synced Oct 6, 2026, 11:48 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study Of Three Different Stomach Acid Reducing Agents When Given With Palbociclib (PD-0332991) And Food

NCT02097329
View directory record Official record
Conditions
Healthy
Interventions
palbociclib commercial free base, famotidine, rabeprazole, antacid
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 19, 2014 · Synced Oct 6, 2026, 11:48 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study of Effect of Food and a Proton Pump Inhibitor on Selpercatinib (LY3527723) in Healthy Participants

NCT05468164
View directory record Official record
Conditions
Healthy
Interventions
Selpercatinib, Omeprazole
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 19, 2025 · Synced Oct 6, 2026, 11:48 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate Relative Bioavailability, Proton Pump Inhibitor (PPI) (Rabeprazole) Effect, Food Effect and Particle Size Effect of New Acalabrutinib Tablet in Healthy Subjects

NCT04488016
View directory record Official record
Conditions
Bioavailability, B-cell Lymphoid Cancer
Interventions
Treatment A- Part 1, Treatment B- Part 1, Treatment C - Part 1, Treatment D- Part 1, Treatment A-Part 2, Treatment B - Part 2, Treatment C - Part 2, Treatment D - Part 2
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 55 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 3, 2021 · Synced Oct 6, 2026, 11:48 PM EDT