Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 28, 2026, 9:28 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–20 of 20 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Omeprazole 20 MG Oral Tablet 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 28, 2026, 9:28 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 23, 2025 · Synced Sep 28, 2026, 9:28 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Evaluate the Interaction Between Aspirin and Nexium

NCT01199328
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Aspirin, Esomeprazole
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 75 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Springfield, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 18, 2010 · Synced Sep 28, 2026, 9:28 PM EDT
Completed Phase 1 Interventional Results available

Open-Label, Multicenter, Two-Part, Phase 1 Study to Characterize Effects of a Moderate CYP3A Inhibitor on PK of Tazemetostat, Effects of Tazemetostat on PK of CYP2C8 and CYP2C19 Substrates, and Effect of Increased Gastric pH on PK of Tazemetostat in B-cell Lymphoma or Advanced Solid Tumor Patients

NCT03028103
View directory record Official record
Conditions
Diffuse Large B Cell Lymphoma, Primary Mediastinal Lymphoma, Mantle Cell Lymphoma, Advanced Solid Tumor, Marginal Zone Lymphoma
Interventions
Tazemetostat, Fluconazole, Omeprazole, Repaglinide
Drug
Lead sponsor
Epizyme, Inc.
Industry
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
3
States / cities
Tucson, Arizona • Tampa, Florida • New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 25, 2023 · Synced Sep 28, 2026, 9:28 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Evaluation of Pharmacokinetic Interaction Between GSK3640254 and Caffeine, Metoprolol, Montelukast, Flurbiprofen, Omeprazole, Midazolam, Digoxin, and Pravastatin in Healthy Adults

NCT04425902
View directory record Official record
Conditions
HIV Infections
Interventions
GSK3640254 200 mg, Caffeine 200 mg, Metoprolol 100 mg, Montelukast 10 mg, Flurbiprofen 100 mg, Omeprazole 40 mg, Midazolam 5 mg (2.5 mL), Digoxin 0.25 mg, Pravastatin 40 mg
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Jan 4, 2024 · Synced Sep 28, 2026, 9:28 PM 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 28, 2026, 9:28 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Assessment and Management of Chronic Dyspepsia in Eastern Uganda

NCT04525664
View directory record Official record
Conditions
Helicobacter Pylori Infection, Dyspepsia
Interventions
Clarithromycin 500mg, Amoxicillin 1000 MG, Omeprazole 40 MG, Omeprazole 20 MG Oral Tablet
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
376 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 24, 2020 · Synced Sep 28, 2026, 9:28 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug Interaction Study With a Potential Alzheimer's Disease Compound

NCT00726726
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Interacting drugs - Cooperstown Cocktail (midazolam, warfarin, (+ vitamin K), caffeine, omeprazole and dextromethorphan), BMS-708163, BMS-708163 + Cooperstown Cocktail
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 45 Years · Male only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Hamilton, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 4, 2008 · Synced Sep 28, 2026, 9:28 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Examine the Effect of Antacid and Omeprazole on the Single-Dose Pharmacokinetics of Tebipenem Pivoxil Hydrobromide (TBPM-PI-HBr) in Healthy Adult Subjects

NCT04368585
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Tebipenem pivoxil hydrobromide (TBPM-PI-HBr), 20 mL aluminum hydroxide/magnesium hydroxide/simethicone (400 mg aluminum hydroxide/400 mg magnesium hydroxide/40 mg simethicone per 5 mL), Omeprazole
Drug
Lead sponsor
Spero Therapeutics
Industry
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 3, 2020 · Synced Sep 28, 2026, 9:28 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

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

NCT02492776
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
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 21, 2022 · Synced Sep 28, 2026, 9:28 PM EDT
Completed Phase 1 Interventional Results available

Pharmacokinetic Drug-drug Interaction Study of Encorafenib and Binimetinib on Probe Drugs in Patients With BRAF V600-mutant Melanoma or Other Advanced Solid Tumors

NCT03864042
View directory record Official record
Conditions
Advanced Solid Tumors, Metastatic Melanoma
Interventions
losartan, dextromethorphan, caffeine, omeprazole, midazolam, rosuvastatin, bupropion immediate release (IR), encorafenib, binimetinib, modafinil
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
11
States / cities
Orange, California • Aurora, Colorado • Chicago, Illinois + 7 more
Source: ClinicalTrials.gov public record
Updated Sep 26, 2024 · Synced Sep 28, 2026, 9:28 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Study to Assess the Relative Bioavailability of Fixed-Dose Combination (FDC) Tablet (Simeprevir, Odalasvir and AL-335) Compared With Single Agents Administered Together, and to Assess the Effect of Multiple-Dose Lansoprazole or Omeprazole on Single-Dose Pharmacokinetics of SMV, ODV, and AL-335 (FDC)

NCT03059303
View directory record Official record
Conditions
Healthy
Interventions
Simeprevir 75 mg, Odalasvir 25 mg, Odalasvir 12.5 mg, Odalasvir 75 mg, AL-335 800 mg, Lansoprazole 30 mg, Omeprazole 20 mg
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 55 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 21, 2017 · Synced Sep 28, 2026, 9:28 PM 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 28, 2026, 9:28 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 22, 2020 · Synced Sep 28, 2026, 9:28 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Drug-Drug Interaction Study to Evaluate the Effects of Ecopipam on the Pharmacokinetics of Multiple Substrates

NCT04764851
View directory record Official record
Conditions
Drug-Interactions
Interventions
ecopipam HCl ~2mg/kg/day, Cohort 1 Probe Cocktail, Cohort 2 Probe Cocktail, Cohort 3 Probe Cocktail
Drug · Combination Product
Lead sponsor
Emalex Biosciences Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated May 23, 2021 · Synced Sep 28, 2026, 9:28 PM EDT
Recruiting Phase 4 Interventional

Efficacy of Ketorolac for Postoperative Pain Management in Hip Arthroscopy

NCT07037888
View directory record Official record
Conditions
Femoracetabular Impingement, Hip Arthroscopy
Interventions
Ketorolac, Control (Standard treatment), Omeprazole
Drug
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years to 89 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Sep 28, 2026, 9:28 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 16, 2024 · Synced Sep 28, 2026, 9:28 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug-Drug Interaction Study to Evaluate the Effects of Ecopipam on the Pharmacokinetics of Multiple Substrates for Drug Metabolism and Transport

NCT05334108
View directory record Official record
Conditions
Drug Interaction
Interventions
Ecopipam, Cohort 1 Probe Substrate Cocktail, Cohort 2 Probe Substrate, Cohort 3 Probe Substrate Cocktail
Drug · Combination Product
Lead sponsor
Emalex Biosciences Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Dec 11, 2022 · Synced Sep 28, 2026, 9:28 PM 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 28, 2026, 9:28 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Effect of Ustekinumab on Cytochrome P450 Enzyme Activities Following Induction and Maintenance Dosing in Participants With Active Crohn's Disease or Ulcerative Colitis

NCT03358706
View directory record Official record
Conditions
Crohn Disease, Ulcerative Colitis
Interventions
Ustekinumab IV Infusion, Ustekinumab SC Injection, Midazolam 2 mg, Warfarin 10 mg, Vitamin K 10 mg, Omeprazole 20 mg, Dextromethorphan 30 mg, Caffeine 100 mg
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 75 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
3
States / cities
Cypress, California • Miami Springs, Florida • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 20, 2025 · Synced Sep 28, 2026, 9:28 PM EDT