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ClinicalTrials.gov public records Last synced Oct 8, 2026, 12:41 AM EDT

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Showing 25–48 of 206 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Proton pump inhibitor (PPI) Clear all
Completed No phase listed Observational

Proton Pump Inhibitor (PPI) Therapy for Newly Diagnosed Esophagitis

NCT00586963
View directory record Official record
Conditions
Erosive Esophagitis, Reflux Esophagitis, GERD
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 23, 2010 · Synced Oct 8, 2026, 12:41 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluate the Effects of Famotidine or Rabeprazole on the PK of Nirogacestat

NCT07171619
View directory record Official record
Conditions
Healthy
Interventions
Nirogacestat, Nirogacestat and Famotidine, Nirogacestat and Rabeprazole
Drug
Lead sponsor
SpringWorks Therapeutics, Inc., a healthcare company of Merck KGaA, Darmstadt, Germany
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated May 8, 2026 · Synced Oct 8, 2026, 12:41 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Proton Pump Inhibitors on Endothelial Function

NCT02022280
View directory record Official record
Conditions
Endothelial Dysfunction
Interventions
Lansoprazole, Placebo
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 80 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Aug 23, 2022 · Synced Oct 8, 2026, 12:41 AM EDT
Completed Phase 2 Interventional Results available

Prevention of Post-Cardiac Surgery Acute Kidney Injury by Proton Pump Inhibitor

NCT06154226
View directory record Official record
Conditions
Acute Kidney Injury
Interventions
Pantoprazole, Famotidine
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 90 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced Oct 8, 2026, 12:41 AM EDT
Recruiting Not applicable Interventional

Optimizing Proton Pump Inhibitors (PPI) Prescribing With EHR-Based Decision Support

NCT06998966
View directory record Official record
Conditions
Prescribing Patterns, Physician, Physician's Practice Patterns, Drug Utilization Review
Interventions
Algorithmic Defaulting (Indication-Based Default), Active Physician Choice
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
50 Years and older
Enrollment
372 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Oct 8, 2026, 12:41 AM 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 8, 2026, 12:41 AM EDT
Completed Not applicable Interventional Results available

HALO Patient Registry: Ablation of Barrett's Esophagus

NCT00848237
View directory record Official record
Conditions
Barrett Esophagus
Interventions
Radiofrequency Ablation (HALO Ablation Systems)
Device
Lead sponsor
Medtronic - MITG
Industry
Eligibility
Not listed
Enrollment
5,521 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
1
States / cities
Knoxville and Other US Cities, California
Source: ClinicalTrials.gov public record
Updated Feb 5, 2016 · Synced Oct 8, 2026, 12:41 AM EDT
Terminated Phase 4 Interventional Results available

Dietary Control Alone Versus Dietary Control Plus Use of Proton Pump Inhibitors to Treat Pediatric Hoarseness

NCT00637416
View directory record Official record
Conditions
Dysphonia
Interventions
Lansoprazole, Placebo
Drug · Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
3 Years to 18 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 23, 2017 · Synced Oct 8, 2026, 12:41 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

HMPL-523 Food Effect and Proton Pump Inhibitor Study

NCT05571787
View directory record Official record
Conditions
Relapsed or Refractory Lymphoma
Interventions
HMPL-523, Rabeprazole
Drug
Lead sponsor
Hutchmed
Industry
Eligibility
18 Years to 55 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Feb 23, 2023 · Synced Oct 8, 2026, 12:41 AM EDT
Completed Phase 1 Interventional

A Study of GDC-0134 to Determine Initial Safety, Tolerability, and Pharmacokinetic Parameters in Participants With Amyotrophic Lateral Sclerosis

NCT02655614
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis
Interventions
GDC-0134, Placebo, Rabeprazole, Midazolam, Caffeine
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
8
States / cities
San Francisco, California • Jacksonville, Florida • Miami, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Aug 6, 2020 · Synced Oct 8, 2026, 12:41 AM EDT
Recruiting Not applicable Interventional

Marginal Ulcer Healing With Low-Thermal Argon Plasma Endoscopic Treatment

NCT06543316
View directory record Official record
Conditions
Roux-en-y Anastomosis Site, Marginal Ulcer, Marginal Ulcer (Peptic) or Erosion, Ulcer, Ulcer, Gastric, Ulcer Gastrointestinal, Abdominal Pain, Nausea, Vomiting, GastroIntestinal Bleeding, Dysphagia, Ulcer Gastrojejunal
Interventions
Low Thermal Plasma (LTP) Treatment, Standard of Care Ulcer Treatment (typically PPI Administration)
Procedure · Other
Lead sponsor
Christopher C. Thompson, MD, MSc
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 25, 2026 · Synced Oct 8, 2026, 12:41 AM EDT
Completed Phase 2 Interventional Results available

Selective 5-HT4 Receptor Agonist and Proton Pump Inhibitor (PPI) in Subjects With Gastroesophageal Reflux Disease (GERD)

NCT01472939
View directory record Official record
Conditions
Gastroesophageal Reflux Disease
Interventions
SSP-002358 (0.1 mg) + PPI, SSP-002358 (0.5 mg) + PPI, SSP-002358 (2.0 mg) + PPI, Placebo + PPI
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years to 70 Years
Enrollment
480 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
62
States / cities
Phoenix, Arizona • Tucson, Arizona • Little Rock, Arkansas + 58 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2021 · Synced Oct 8, 2026, 12:41 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Determining Risk Factors for Successful PPI Weaning

NCT03226054
View directory record Official record
Conditions
Gastroesophageal Reflux
Interventions
Lifestyle Modifications
Behavioral
Lead sponsor
Mount Carmel Health System
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Westerville, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 4, 2018 · Synced Oct 8, 2026, 12:41 AM EDT
Completed Phase 2Phase 3 Interventional

Cyrotherapy vs. APC in GAVE

NCT00587405
View directory record Official record
Conditions
Watermelon Stomach
Interventions
cryotherapy, Argon Plasma Coagulation
Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 85 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 7, 2016 · Synced Oct 8, 2026, 12:41 AM EDT
Completed Phase 2 Interventional Results available

A Study in Patients With Erosive Esophagitis to Investigate Safety, Tolerability, and Healing Rates After 4 Weeks Treatment of X842 or Lansoprazole and Symptom Pattern During Subsequent 4 Weeks Treatment With Lansoprazole

NCT05055128
View directory record Official record
Conditions
Erosive Esophagitis
Interventions
X842, X842 Dummy, Lansoprazole, Lansoprazole Dummy
Drug
Lead sponsor
Cinclus Pharma Holding AB
Industry
Eligibility
18 Years to 75 Years
Enrollment
248 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Oct 8, 2026, 12:41 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Does Omeprazole Decrease Intestinal Calcium Absorption?

NCT00582972
View directory record Official record
Conditions
Osteoporosis, Achlorhydria, GERD, Hip Fracture
Interventions
Omeprazole
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
Female only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 15, 2013 · Synced Oct 8, 2026, 12:41 AM EDT
Completed Phase 3 Interventional Results available

Rivaroxaban for the Prevention of Major Cardiovascular Events in Coronary or Peripheral Artery Disease

NCT01776424
View directory record Official record
Conditions
Prevention & Control
Interventions
Rivaroxaban (Xarelto, BAY59-7939), Aspirin, Aspirin placebo, Rivaroxaban placebo, Pantoprazole, Pantoprazole placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
27,395 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2021
U.S. locations
53
States / cities
Birmingham, Alabama • Mobile, Alabama • Anaheim, California + 49 more
Source: ClinicalTrials.gov public record
Updated Nov 28, 2022 · Synced Oct 8, 2026, 12:41 AM EDT
Completed No phase listed Observational

Influence of the Proton Pump Inhibitor Omeprazole on the Anti-Platelet of P2Y12 Antagonists in Subjects With Coronary and Peripheral Artery Disease

NCT01018940
View directory record Official record
Conditions
Coronary Artery Disease, Peripheral Artery Disease
Interventions
Not listed
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Dec 4, 2014 · Synced Oct 8, 2026, 12:41 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate Effects of Proton-pump Inhibitor on Acalabrutinib Capsule When Administered Orally With COCA-COLA in Healthy Participants

NCT04489797
View directory record Official record
Conditions
Infectious Disease
Interventions
Acalabrutinib, Rabeprazole
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 55 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Anaheim, California
Source: ClinicalTrials.gov public record
Updated Oct 30, 2020 · Synced Oct 8, 2026, 12:41 AM EDT
Terminated Not applicable Interventional Results available

COPD Patients Diagnosed With GERD,COPD Exacerbations After Treatment With High Dose PPI

NCT00523367
View directory record Official record
Conditions
Gastroesophageal Reflux, Chronic Obstructive Pulmonary Disease
Interventions
24 hour pH testing
Procedure
Lead sponsor
University of Florida
Other
Eligibility
40 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 18, 2013 · Synced Oct 8, 2026, 12:41 AM EDT
Completed Phase 2 Interventional

A Study to Evaluate the Efficacy and Safety of Arbaclofen Placarbil (XP19986) as Adjunctive Therapy in Subjects With Gastroesophageal Reflux Disease (GERD)

NCT00978016
View directory record Official record
Conditions
Gastroesophageal Reflux Disease
Interventions
arbaclofen placarbil-Cohort 1, Placebo-Cohort 5, arbaclofen placarbil-Cohort 2, arbaclofen placarbil-Cohort 3, arbaclofen placarbil-Cohort 4, PPI
Drug
Lead sponsor
XenoPort, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
460 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
62
States / cities
Huntsville, Alabama • Chandler, Arizona • Mesa, Arizona + 56 more
Source: ClinicalTrials.gov public record
Updated Feb 21, 2021 · Synced Oct 8, 2026, 12:41 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Evaluate the Drug-drug Interaction Effect of Omeprazole on the Pharmacokinetics (PK) of AMG 510 in Healthy Participants

NCT05581992
View directory record Official record
Conditions
Healthy Participants
Interventions
AMG 510, Omeprazole
Drug
Lead sponsor
Amgen
Industry
Eligibility
18 Years to 60 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Daytona Beach, Florida
Source: ClinicalTrials.gov public record
Updated Mar 18, 2025 · Synced Oct 8, 2026, 12:41 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Effect of Food and Proton Pump Inhibitor on the Pharmacokinetics of ZN-A-1041 in Healthy Participants

NCT07329972
View directory record Official record
Conditions
Healthy Volunteers
Interventions
ZN-A-1041 Formulation 1, ZN-A-1041 Formulation 2, Rabeprazole
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
2
States / cities
Daytona Beach, Florida • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Oct 8, 2026, 12:41 AM EDT
Not yet recruiting Phase 2Phase 3 Interventional

Efficacy and Safety of Aspirin and Lansoprazole for Prevention of Preterm Birth in High-Risk Pregnant Women: A Biomarker-Enriched Trial

NCT07337655
View directory record Official record
Conditions
Pre-term Birth
Interventions
Low-Dose Aspirin Dose: 81 mg & Lansoprazole Dose: 30 mg, Standard of Care
Drug · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
670 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Oct 8, 2026, 12:41 AM EDT