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ClinicalTrials.gov public records Last synced Sep 27, 2026, 10:49 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Omeprazole capsule Clear all
Completed Phase 4 Interventional Accepts healthy volunteers Results available

The Utility of Nexium in Chronic Cough and Reflux Disease

NCT00287339
View directory record Official record
Conditions
Cough, GERD
Interventions
Esomeprazole, Placebo
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 9, 2012 · Synced Sep 27, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Compare the Relative Bioavailability of Two AG-881 Formulations and Evaluate the Effect of Food and Omeprazole on the Pharmacokinetics of AG-881

NCT04128787
View directory record Official record
Conditions
Healthy Volunteers
Interventions
AG881 Formulation 1, AG881 Formulation 2, Omeprazole
Drug
Lead sponsor
Agios Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 20, 2021 · Synced Sep 27, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug Interaction Study With Proton Pump Inhibitor

NCT00357240
View directory record Official record
Conditions
HIV Infections
Interventions
Atazanavir, Atazanavir/Ritonavir, Atazanavir/Ritonavir+Omeprazole
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 50 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Hamilton, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 7, 2011 · Synced Sep 27, 2026, 10:49 AM 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 13, 2021 · Synced Sep 27, 2026, 10:49 AM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Helicobacter Pylori and Body Iron in Adults

NCT03146325
View directory record Official record
Conditions
Helicobacter Pylori Infection
Interventions
BISMUTH TETRACYCLINE METRONIDAZOLE OMEPRAZOLE, MATCHING PLACEBO
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 64 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
El Paso, Texas
Source: ClinicalTrials.gov public record
Updated May 8, 2017 · Synced Sep 27, 2026, 10:49 AM 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 23, 2019 · Synced Sep 27, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Clinical Trial to Evaluate MK-4208/TERN-701 in Healthy Adult Participants (MK-4208-001/TERN701-1014)

NCT07838987
View directory record Official record
Conditions
Healthy
Interventions
TERN-701, Rabeprazole, Midazolam, Digoxin, Pravastatin, Montelukast, Omeprazole, Itraconazole, Warfarin, Rosuvastatin, Bosentan, Quinidine
Drug
Lead sponsor
Terns, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Industry
Eligibility
18 Years to 65 Years
Enrollment
196 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Millcreek, Utah
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Sep 27, 2026, 10:49 AM 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 12, 2023 · Synced Sep 27, 2026, 10:49 AM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Phase 4, Vedolizumab-4002 Post-marketing, Disease-Drug-Drug Interaction Study

NCT02760615
View directory record Official record
Conditions
Colitis, Ulcerative, Crohn Disease
Interventions
Caffeine, Losartan, Omeprazole, Dextromethorphan, Midazolam, Vedolizumab
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 55 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
2
States / cities
Cypress, California • Miami, Florida
Source: ClinicalTrials.gov public record
Updated Oct 26, 2020 · Synced Sep 27, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Trial to Evaluate the Effect of Esomeprazole on the Pharmacokinetics of Emraclidine in Healthy Adult Participants

NCT06366243
View directory record Official record
Conditions
Healthy Participants
Interventions
Emraclidine, Esomeprazole
Drug
Lead sponsor
Cerevel Therapeutics, LLC
Industry
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Dilworth, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 23, 2024 · Synced Sep 27, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Multiple-Dose Pharmacokinetics Study of Three Gefapixant (AF-219/MK-7264) Formulations

NCT02790840
View directory record Official record
Conditions
Healthy
Interventions
Omeprazole, Gefapixant
Drug
Lead sponsor
Afferent Pharmaceuticals, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Industry
Eligibility
18 Years to 55 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 17, 2017 · Synced Sep 27, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of a Proton Pump Inhibitor on Gleevec® in Healthy Volunteers

NCT00446004
View directory record Official record
Conditions
Healthy
Interventions
Imatinib Mesylate, Omeprazole
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 21, 2016 · Synced Sep 27, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study of the Effects of Multiple Doses of Dexlansoprazole, Lansoprazole, Omeprazole or Esomeprazole on the Pharmacokinetics and Pharmacodynamics of Clopidogrel in Healthy Participants.

NCT00942175
View directory record Official record
Conditions
Healthy
Interventions
Clopidogrel, Clopidogrel and Lansoprazole, Clopidogrel and Dexlansoprazole, Clopidogrel and Omeprazole, Clopidogrel and Esomeprazole
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 55 Years
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Feb 2, 2012 · Synced Sep 27, 2026, 10:49 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 27, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Interaction Study of Clopidogrel 300/75 mg Given Alone or With Omeprazole 80 mg 12 Hours Apart in Healthy Subjects

NCT01129388
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 27, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of the Drug Interactions Between Danicopan and Cyclosporine, Tacrolimus, Antacids, and Omeprazole in Healthy Adults

NCT05109390
View directory record Official record
Conditions
Healthy
Interventions
Danicopan, Cyclosporine, Tacrolimus, Calcium Carbonate, Aluminum/Magnesium Hydroxide/Simethicone, Omeprazole
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Sep 27, 2026, 10:49 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 17, 2025 · Synced Sep 27, 2026, 10:49 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 27, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study of Effect of Multiple Doses of LOXO-305 on the Pharmacokinetics of Single Oral Doses of CYP1A2, CYP2C9, CYP2C19 Substrates in Healthy Participants

NCT06215430
View directory record Official record
Conditions
Healthy
Interventions
Caffeine Tablet, Omeprazole capsule, Warfarin tablet, Pirtobrutinib
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 55 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 9, 2025 · Synced Sep 27, 2026, 10:49 AM 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 21, 2014 · Synced Sep 27, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Vecam 40/300 and Vecam 20/300 Compared to Omeprazole 20 mg on Gastric pH

NCT00818870
View directory record Official record
Conditions
Gastroesophageal Reflux
Interventions
Omeprazole, Vecam
Drug
Lead sponsor
Vecta Ltd.
Industry
Eligibility
18 Years to 55 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jan 26, 2010 · Synced Sep 27, 2026, 10:49 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 27, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Assess the Levels in Blood Plasma of BMS-986278 in Healthy Participants Following Administration of Tablets, With or Without Food, and in the Presence of an Antacid (Esomeprazole)

NCT04468815
View directory record Official record
Conditions
Healthy Participants
Interventions
BMS-986278 Tablet, Esomeprazole, BMS-986278 suspension
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
21 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 9, 2022 · Synced Sep 27, 2026, 10:49 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 27, 2026, 10:49 AM EDT