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Showing 1–24 of 75 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Omeprazole 20mg Capsule Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Effect on 24-hour, Intragastric pH of RAB ER 50-mg Capsules Compared With Esomeprazole (Nexium) 40 mg Capsules and Rabeprazole (Aciphex) 20-mg Tablets

NCT01153659
View directory record Official record
Conditions
Healthy
Interventions
E3810, Aciphex (rabeprazole), Nexium (esomeprazole)
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Oct 31, 2013 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 2 Interventional

Active Control, Double-blind, Double-dummy, Parallel-group, Randomized Study to Assess the Effect of VECAM 40/300, Administered at Bedtime, vs. Esomeprazole 20 mg, Administered 30-60 Min. Before Dinner, on Daytime and Nighttime GERD Symptoms

NCT01059383
View directory record Official record
Conditions
Gastroesophageal Reflux
Interventions
VECAM 40/300, Esomeprazole 20 mg
Drug
Lead sponsor
Vecta Ltd.
Industry
Eligibility
18 Years to 75 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
2
States / cities
San Diego, California • Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jul 29, 2012 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Impact of Omeprazole on the Pharmacokinetics of Sotorasib Co-administered With an Acidic Beverage in Healthy Volunteers

NCT05497557
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Omeprazole, Sotorasib
Drug
Lead sponsor
Amgen
Industry
Eligibility
18 Years to 60 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 18, 2024 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacodynamics of CGT 2168 Compared With Plavix®

NCT00620802
View directory record Official record
Conditions
Healthy
Interventions
CGT-2168, Plavix
Drug
Lead sponsor
Cogentus Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Aug 25, 2008 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

GSK1325756 Relative Bioavailability Study in Healthy Elderly Subjects

NCT03457727
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive
Interventions
Danirixin, Omeprazole
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
65 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated May 18, 2021 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 3 Interventional Results available

Efficacy of Esomeprazole in Patients With Frequent Heartburn

NCT01370525
View directory record Official record
Conditions
Heartburn
Interventions
Esomeprazole
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
340 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
10
States / cities
Sacramento, California • Seminole, Florida • Meridian, Idaho + 7 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2013 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluating the Effects of Omeprazole on the Pharmacokinetics of XS004 (Dasatinib) Tablets in Healthy Adult Subjects Under Fasting Conditions

NCT05433896
View directory record Official record
Conditions
Pharmacokinetics, Drug Interactions
Interventions
Dasatinib ASD, Omeprazole 40 MG
Drug
Lead sponsor
Xspray Pharma AB
Industry
Eligibility
18 Years to 60 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Dilworth, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 26, 2022 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Drug Interaction With Proton Pump Inhibitors for Nifedipine ER Tablets

NCT03100838
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Nifedipine 60 MG Extended Release Oral Tablet, omeprazole/sodium bicarbonate, SmartPill (TM)
Drug · Device
Lead sponsor
Food and Drug Administration (FDA)
Federal
Eligibility
18 Years to 55 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 15, 2019 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 4 Interventional Results available

Ulcer Prevention Study in Post Gastric Bypass Patients

NCT00557349
View directory record Official record
Conditions
Marginal Ulcers
Interventions
Omeprazole, Famotidine
Drug
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 18, 2017 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Assess the Drug Interactions of BBT-877 and Midazolam, Itraconazole, and Esomeprazole in Healthy Adult Subjects

NCT04138836
View directory record Official record
Conditions
Healthy Participants
Interventions
BBT-877, Midazolam, Itraconazole, Esomeprazole
Drug
Lead sponsor
Bridge Biotherapeutics, Inc.
Industry
Eligibility
19 Years to 55 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jan 17, 2020 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Interaction Study of Clopidogrel 300/75 mg Given Alone or Concomitantly With Omeprazole 80 mg in Healthy Subjects

NCT01129375
View directory record Official record
Conditions
Healthy
Interventions
clopidogrel, placebo, omeprazole
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 65 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 14, 2011 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study of ALXN1840 (Coated and Non-coated) Administered With And Without Omeprazole In Healthy Adults

NCT05319912
View directory record Official record
Conditions
Healthy
Interventions
ALXN1840 Enteric-coated Tablet, ALXN1840 Non-coated Capsule, Omeprazole
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
19 Years to 55 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Aug 1, 2023 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 4 Interventional Results available

Placebo In Chronic Back Pain - Double-Blind Randomized Control Trial

NCT02013427
View directory record Official record
Conditions
Chronic Low Back Pain
Interventions
Naproxen, Placebo, Omeprazole
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Sep 23, 2026, 1:50 AM EDT
Terminated Phase 3 Interventional

Clopidogrel and the Optimization of Gastrointestinal Events (COGENT-1)

NCT00557921
View directory record Official record
Conditions
Acute Coronary Syndrome, Myocardial Infarction, Coronary Artery Disease, Percutaneous Coronary Intervention
Interventions
CGT-2168 (clopidogrel 75 mg/omeprazole 20 mg) and aspirin, Plavix (clopidogrel 75 mg) and aspirin
Drug
Lead sponsor
Cogentus Pharmaceuticals
Industry
Eligibility
21 Years and older
Enrollment
5,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
247
States / cities
Alexander City, Alabama • Birmingham, Alabama • Geneva, Alabama + 205 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2009 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase 1 Study to Examine the Pharmacodynamics of Different AZD1722 Formulations

NCT02249936
View directory record Official record
Conditions
Healthy
Interventions
AZD1722, Omeprazole
Drug
Lead sponsor
Ardelyx
Industry
Eligibility
19 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 25, 2014 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Esomeprazole on the Pharmacokinetics of Oral Treprostinil

NCT00963027
View directory record Official record
Conditions
Hypertension, Pulmonary, Pulmonary Arterial Hypertension
Interventions
Treprostinil diethanolamine, Esomeprazole
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
18 Years to 55 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Mar 7, 2010 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study Evaluating Effect of Esomeprazole, Omeprazole or Lansoprazole on the Pharmacodynamics (PD) and Pharmacokinetics (PK) of Clopidogrel

NCT01147588
View directory record Official record
Conditions
Healthy
Interventions
lansoprazole, omeprazole, esomeprazole, clopidogrel
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 55 Years
Enrollment
149 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 27, 2011 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the One-way Interaction of Calcium Carbonate, Omeprazole, or Rifampin on ACP-196

NCT04914936
View directory record Official record
Conditions
Healthy Participants
Interventions
ACP-196, Calcium carbonate, Omeprazole, Rifampin
Drug
Lead sponsor
Acerta Pharma BV
Industry
Eligibility
18 Years to 65 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 6, 2021 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 4 Interventional Results available

Levothyroxine Sodium in Thyroidectomized Patients Taking Proton Pump Inhibitors

NCT03094416
View directory record Official record
Conditions
Hypothyroidism;Postablative
Interventions
levothyroxine sodium capsule, Proton pump inhibitor (PPI), Levothyroxine Sodium (LT4) Tablets
Drug
Lead sponsor
IBSA Institut Biochimique SA
Industry
Eligibility
18 Years to 65 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
9
States / cities
La Jolla, California • Ventura, California • Washington D.C., District of Columbia + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2022 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study Comparing Different Formulations of LY3410738 in Healthy Adult Participants

NCT06181084
View directory record Official record
Conditions
Healthy
Interventions
LY3410738, Esomeprazole
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 55 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Daytona Beach, Florida
Source: ClinicalTrials.gov public record
Updated Dec 25, 2023 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 4 Interventional Results available

Placebo In Chronic Back Pain (Phase 2)

NCT02986334
View directory record Official record
Conditions
Chronic Low Back Pain
Interventions
Naproxen, Omeprazole, Placebo
Drug
Lead sponsor
Apkar Apkarian
Other
Eligibility
18 Years to 75 Years
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 6, 2022 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 4 Interventional Results available

Study Evaluating the Drug Interaction Potential of Luliconazole Cream 1% in Participants With Tinea Pedis and Tinea Cruris

NCT02394340
View directory record Official record
Conditions
Tinea Pedis, Tinea Cruris
Interventions
Omeprazole 40 mg, Luliconazole Cream 1%
Drug
Lead sponsor
Bausch & Lomb Incorporated
Industry
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Fair Lawn, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 26, 2019 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study to Evaluate the Effect of Omeprazole on the Pharmacokinetics of SPD422 (Anagrelide Hydrochloride) in Healthy Adult Participants

NCT03866434
View directory record Official record
Conditions
Healthy Volunteers
Interventions
SPD422, Omeprazole
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 14, 2021 · Synced Sep 23, 2026, 1:50 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Comparison of Small Bowel Lesions Associated With Celecoxib Versus Ibuprofen Plus Omeprazole

NCT00640809
View directory record Official record
Conditions
Bowel Diseases, Inflammatory
Interventions
Celecoxib, Placebo, Ibuprofen plus Omeprazole
Drug · Other
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
408 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2004
U.S. locations
12
States / cities
Scottsdale, Arizona • La Jolla, California • Los Angeles, California + 8 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2021 · Synced Sep 23, 2026, 1:50 AM EDT