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ClinicalTrials.gov public records Last synced Oct 16, 2026, 4:07 PM EDT

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Showing 49–72 of 316 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Omeprazole Clear all
Completed Phase 4 Interventional Accepts healthy volunteers

Study of Intragastric pH Profile After 5 Days Pantoprazole 40 mg iv Followed by Oral Esomeprazole 40 mg po or Oral Pantoprazole 40 mg po

NCT00206050
View directory record Official record
Conditions
Healthy
Interventions
Esomeprazole, pantoprazole
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jan 21, 2011 · Synced Oct 16, 2026, 4:07 PM EDT
Terminated Phase 1 Interventional

A Study to Evaluate the Effects of ASA404 Alone or in Combination With Taxane-based Chemotherapies on the Pharmacokinetics of Drugs in Patients With Advanced Solid Tumor Malignancies

NCT01290380
View directory record Official record
Conditions
Solid Tumor Malignancies
Interventions
ASA404, DMXAA, DXAA
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2010
U.S. locations
2
States / cities
Houston, Texas • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 2, 2011 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 3 Interventional

Esomeprazole for Relief of Upper Gastrointestinal Symptoms Associated With Continuous Use of NSAIDs

NCT00241527
View directory record Official record
Conditions
NSAIDs, Upper GI Symptoms
Interventions
Esomeprazole
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
556 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2002
U.S. locations
32
States / cities
Tallassee, Alabama • Phoenix, Arizona • Garden Grove, California + 29 more
Source: ClinicalTrials.gov public record
Updated Jan 24, 2011 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

GSK1349572 Proton Pump Inhibitor Drug Interaction and Supratherapeutic Dose Study

NCT00942136
View directory record Official record
Conditions
Healthy Volunteer
Interventions
GSK1349572, Placebo, Omeprazole
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 9, 2009 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 3 Interventional

Study to Evaluate the Incidence of Gastric Ulcers Following Administration of Either PN 200 or Naproxen in Subjects Who Are at Risk for Developing NSAID-Associated Ulcers.

NCT00367211
View directory record Official record
Conditions
Osteoarthritis, Rheumatoid Arthritis, Ankylosing Spondylitis
Interventions
PN 200 tablets (500 mg naproxen and 20 mg omeprazole), Naproxen 500 mg tablets (PN 200 minus omeprazole)
Drug
Lead sponsor
POZEN
Industry
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Pompano Beach, Florida
Source: ClinicalTrials.gov public record
Updated Apr 22, 2008 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Examine the Effect of Omeprazole, Famotidine, and an Acidic Beverage on the Pharmacokinetics of Entinostat in Healthy Adult Subjects

NCT02922933
View directory record Official record
Conditions
Volunteers, Healthy Volunteers, Human Volunteers, Normal Volunteers
Interventions
entinostat, Omeprazole, Famotidine
Drug · Dietary Supplement
Lead sponsor
Syndax Pharmaceuticals
Industry
Eligibility
19 Years to 55 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
2
States / cities
Tempe, Arizona • Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Aug 16, 2018 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Vyvanse and Adderall XR Given Alone and in Combination With Prilosec OTC

NCT00746733
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Lisdexamfetamine Dimesylate, Adderall XR (mixed salts amphetamine)
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years to 45 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jun 14, 2021 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 3 Interventional

Safety of Daily Dose Esomeprazole for GERD for Pediatric and Adolescent Patients

NCT00241501
View directory record Official record
Conditions
Gastroesophageal Reflux Disease (GERD)
Interventions
Esomeprazole (Nexium)
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
12 Years to 17 Years
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
28
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Wilmington, Delaware + 25 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2010 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Drug-drug Interaction Study of Aggrenox and Omeprazole in Normal Volunteers

NCT01303445
View directory record Official record
Conditions
Healthy
Interventions
Aggrenox alone, Aggrenox and omeprazole, Omeprazole alone
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years to 50 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2011
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 24, 2013 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Open-Label, Multiple-Dose, Non-Randomized Study to Assess Drug-Drug Interactions of Proellex® in Female Subjects

NCT00741468
View directory record Official record
Conditions
Drug Interactions
Interventions
Proellex, CYP1A2 probe, CYP2C9 probe, CYP2C19 probe, CYP2D6 probe, CYP3A4 probe
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 48 Years · Female only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 22, 2014 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Randomized Trial of Medical and Surgical Treatments for Patients With GERD Symptoms That Are Refractory to Proton Pump Inhibitors

NCT01265550
View directory record Official record
Conditions
GERD
Interventions
Nissen fundoplication, baclofen, Desipramine
Device · Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 64 Years
Enrollment
366 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
15
States / cities
Birmingham, Alabama • Tucson, Arizona • Loma Linda, California + 12 more
Source: ClinicalTrials.gov public record
Updated Jan 22, 2020 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 1 Interventional

Drug Interaction Study of SAR302503 in Patients With Solid Tumor

NCT01585623
View directory record Official record
Conditions
Solid Tumor
Interventions
SAR302503, omeprazol, metoprolol, midazolam
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
3
States / cities
Augusta, Georgia • Detroit, Michigan • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 5, 2025 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Assessment of Gastric pH Changes Induced by Ascorbic Acid Tablets

NCT04199624
View directory record Official record
Conditions
Hypochlorhydria
Interventions
Omeprazole 20mg, Vitamin C
Drug · Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 30 Years · Male only
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 22, 2025 · Synced Oct 16, 2026, 4:07 PM EDT
Withdrawn Not applicable Interventional

Confocal Endomicroscopy for Non-Erosive Reflux Disease (CE NERD)

NCT02039869
View directory record Official record
Conditions
Gastroesophageal Reflux Disease, Non Erosive Reflux Disease, Dyspepsia
Interventions
Confocal endomicroscopy, Proton pump inhibitor, Sucralfate
Device · Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 79 Years
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
3
States / cities
Kenner, Louisiana • Charleston, South Carolina • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Dec 9, 2015 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Bioavailability and Bioequivalence of Two Risdiplam Tablets in Healthy Participants

NCT04718181
View directory record Official record
Conditions
Muscular Atrophy, Spinal
Interventions
risdiplam, omeprazole
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years to 55 Years
Enrollment
131 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
4
States / cities
Daytona Beach, Florida • Springfield, Missouri • Dallas, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2023 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 1 Interventional

Drug-drug Interaction Trial With Tralokinumab in Moderate to Severe Atopic Dermatitis - ECZTRA 4

NCT03556592
View directory record Official record
Conditions
Atopic Dermatitis
Interventions
Tralokinumab, Caffeine, Warfarin, Omeprazole, Metoprolol, Midazolam Hydrochloride
Drug
Lead sponsor
LEO Pharma
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
9
States / cities
Little Rock, Arkansas • Rogers, Arkansas • San Diego, California + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 24, 2025 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Early Phase 1 Interventional

Study to Investigate the Effect of Rocatinlimab (AMG 451) on the Pharmacokinetics of Multiple Cytochrome P450 (CYP450) Substrates in Participants With Moderate to Severe Atopic Dermatitis

NCT05891119
View directory record Official record
Conditions
Atopic Dermatitis
Interventions
Caffeine, Metoprolol, Midazolam, Warfarin, Vitamin K, Omeprazole, Rocatinlimab
Dietary Supplement · Drug
Lead sponsor
Amgen
Industry
Eligibility
18 Years to 65 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
7
States / cities
North Hollywood, California • DeLand, Florida • Hialeah, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Dec 23, 2025 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Single and Multiple Ascending Doses, Relative Bioavailability, Food Effect, and Drug-Drug Interaction Study of NX-5948 in Healthy Volunteers

NCT06717269
View directory record Official record
Conditions
Healthy Volunteer
Interventions
NX-5948, Esomeprazole, Placebo, Famotidine, Midazolam, Digoxin, Rosuvastatin, Quinidine
Drug
Lead sponsor
Nurix Therapeutics, Inc.
Industry
Eligibility
19 Years to 55 Years
Enrollment
223 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
2
States / cities
Phoenix, Arizona • Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 3 Interventional

Esomeprazole In Patients With Gastric Acid Hypersecretory States Including Idiopathic Hypersecretion and Zollinger-Ellison Syndrome

NCT00079833
View directory record Official record
Conditions
Zollinger-Ellison Syndrome
Interventions
Esomeprazole magnesium (Nexium)
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
5
States / cities
Los Angeles, California • Gainesville, Florida • Columbus, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2010 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 3 Interventional Results available

Efficacy of Esomeprazole in Patients With Frequent Heartburn

NCT01370538
View directory record Official record
Conditions
Heartburn
Interventions
Esomeprazole
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
341 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
10
States / cities
Mobile, Alabama • San Francisco, California • Westlake Village, California + 7 more
Source: ClinicalTrials.gov public record
Updated Apr 11, 2013 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Not applicable Interventional

Gastroesophageal Reflux Disease (GERD)/Nighttime Heartburn and Driving Performance

NCT01079884
View directory record Official record
Conditions
GERD
Interventions
esomeprazole 40 mg
Drug
Lead sponsor
David A. Johnson, MD
Other
Eligibility
18 Years to 60 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 22, 2012 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate The Effects of Two Different Meal Types, Omeprazole And Ranitidine On Danoprevir Pharmacokinetics When Coadministered With Ritonavir in Healthy Volunteers

NCT01392755
View directory record Official record
Conditions
Healthy Volunteer
Interventions
danoprevir, omeprazole, ranitidine, ritonavir
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years to 45 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 2, 2016 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Estimate the Effect of Multiple Dose Abrocitinib on Caffeine, Efavirenz, and Omeprazole in Healthy Participants

NCT05067439
View directory record Official record
Conditions
Healthy Participants
Interventions
Abrocitinib, Omeprazole, Caffeine, Efavirenz
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Hollywood, Florida
Source: ClinicalTrials.gov public record
Updated May 31, 2024 · Synced Oct 16, 2026, 4:07 PM EDT
Completed Phase 4 Interventional Results available

A Safety Study of VIMOVO in Adolescents With Juvenile Idiopathic Arthritis (JIA)

NCT01544114
View directory record Official record
Conditions
Juvenile Idiopathic Arthritis (JIA)
Interventions
VIMOVO 250/20, VIMOVO 375/20, VIMOVO 500/20
Drug
Lead sponsor
Amgen
Industry
Eligibility
12 Years to 16 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
17
States / cities
Little Rock, Arkansas • San Francisco, California • Aurora, Colorado + 14 more
Source: ClinicalTrials.gov public record
Updated Dec 17, 2024 · Synced Oct 16, 2026, 4:07 PM EDT