Omeprazole: all 218 studies that test it

Page 2 of 3. Open to participants first (16), then studies with results posted, then the rest; newest registration first within each.

• Argon Plasma Coagulation for Barrett's EsophagusCompletedNCT04154748Not applicable
• Proton Pump Inhibitor (PPI) Response in Eosinophilic Esophagitis Assessed by Transnasal Endoscopy (TNE)Active, not recruitingNCT04149470Phase 4
• 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-881CompletedNCT04128787Phase 1
• Effect of Omeprazole on PK of Fluzoparib in Healthy Male SubjectsCompletedNCT04108676Phase 1
• Effects of Different Omeprazole Dosing on Gastric pH in Non-variceal Upper Gastrointestinal BleedingCompletedNCT03980496Phase 4
• Drug-drug Interaction Study to Evaluate the Effect of Omeprazole on CG5503 (Tapentadol)CompletedNCT03979989Phase 1
• A Study to Evaluate the Effect of Omeprazole on the Pharmacokinetics of BMS-986205 in Healthy ParticipantsCompletedNCT03936374Phase 1
• EoE RCT Fluticasone and Omeprazole vs Fluticasone AloneStatus unknownNCT03781596Phase 4
• Drug Interaction Study of CT1812 in Healthy VolunteersCompletedNCT03716427Phase 1
• Prevalence and Predictors of Proton Pump Inhibitor Partial Response in Gastroesophageal Reflux Disease in Systemic SclerosisCompletedNCT03561233Phase 1
• Study in Healthy Subjects to Determine the Effect of Relacorilant on Exposure to Probe Substrates for Cytochrome P450sCompletedNCT03457597Phase 1
• Single Dose Omeprazole Versus High Dose in High-risk Critically Ill Patients.CompletedNCT03388463Not applicable
• Study to Compare the Bioavailability of Omeprazole 20 mg Before and After Undergoing Surgery for Morbid ObesityCompletedNCT03378960Phase 4
• A Study to Evaluate the Effect of Multiple Doses of CC-90001 on the Pharmacokinetics of Omeprazole, Midazolam, Warfarin, Rosuvastatin, Metformin, Digoxin, and Nintedanib in Healthy Adult SubjectsCompletedNCT03363815Phase 1
• A Phase 1 Study to Evaluate the Effects of Omeprazole and Famotidine on the Absorption of Telotristat Ethyl in Healthy SubjectsCompletedNCT03302845Phase 1
• Effects of Concomitant Administration of BMS-986195 on Methotrexate, Caffeine, Montelukast, Flurbiprofen, Omeprazole, Midazolam, Digoxin, and PravastatinCompletedNCT03131973Phase 1
• Omeprazole 20 mg in Patients With Laryngopharyngeal reflux and Comorbid Chronic RhinosinusitisCompletedNCT03086070Phase 4
• 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)TerminatedNCT03059303Phase 1
• A Study to Examine the Effect of Omeprazole, Famotidine, and an Acidic Beverage on the Pharmacokinetics of Entinostat in Healthy Adult SubjectsCompletedNCT02922933Phase 1
• Factors Influencing the Human Gut Microbiome Profile in Multi-ethnic Groups of the Singapore Community (FAMES)CompletedNCT02893709Not applicable
• Effect of Proton Pump Inhibitors on Gut Microbiota and Systemic Inflammation in Older AdultsCompletedNCT02844621Early Phase 1
• This Study Tests the Effect of Risankizumab on the Metabolism in the Liver of Five Additional Drugs to Study Possible Drug Interactions in Patients With Psoriasis With or Without Psoriatic ArthritisCompletedNCT02772601Phase 1
• Pharmacokinetic Drug-Drug Interaction Study of RucaparibCompletedNCT02740712Phase 1
• Comparison of the Clinical Efficacy of Ketoprofen, Associated or Not With Omeprazole in Lower Third Molar RemovalCompletedNCT02730026Phase 4
• Endoscopic Tri-Modal Imaging to Distinguish Functional Dyspepsia From Reflux DiseaseCompletedNCT02685150Not applicable
• A Drug Interaction Study to Assess the Effect of Omeprazole on the Pharmacokinetics of Ibrutinib in Healthy AdultsCompletedNCT02638116Phase 1
• A Two Week Nitazoxanidebased Quadruple RegimenStatus unknownNCT02621359Phase 3
• GERD and Anti-Reflux Therapy Between Able-bodied and SCI IndividualsStatus unknownNCT02584751Phase 1
• iFAAM: The Impact of Proton-pump Inhibitors (Antacids) on Threshold Dose DistributionsCompletedNCT02552537Phase 4
• Different Dose of Intravenous Omeprazole to Treat Bleeding Ulcer With Adherent ClotCompletedNCT02536989Phase 4
• Eradication of Antibiotic-resistant Bacteria Through Antibiotics and Fecal BacteriotherapyStatus unknownNCT02472600Phase 2
• A 5-Period, Single Dose, Phase 1 Study in Healthy Elderly Subjects to Assess Relative Bioavailability and Food Effect of Two Oral Formulations of GSK1325756 (Free Base vs HBr Salt) and Food Effect on the HBr Formulation When Given With OmeprazoleCompletedNCT02453022Phase 1
• Drug Metabolism and AntidepressantStatus unknownNCT02438072Not applicable
• Study of Nitazoxanide (NTZ) Based New Therapeutic Regimens for Helicobacter PyloriStatus unknownNCT02422706Phase 3
• Effect of BI 1181181 on Midazolam, Warfarin, Omeprazole and DigoxinWithdrawnNCT02345304Phase 1
• Influence of CYP2C19 Polymorphism on PK/PD of OmeprazoleCompletedNCT02299687Phase 1
• Evaluation of CYP450 Activities in Diabetic Patients vs. Non-diabetic SubjectsCompletedNCT02291666Phase 4
• Study to Evaluate the Effect of Multiple Doses of BIRT 2584 XX Tablets on the Pharmacokinetic Parameters of Warfarin, Omeprazole, Caffeine, and Dextromethorphan in Healthy Male VolunteersCompletedNCT02256813Phase 1
• The Effect of BI 187004 on the Pharmacokinetics of Cytochrome P450 Substrates (Caffeine, Warfarin, Omeprazole, Metoprolol and Midazolam) and a P Glycoprotein Substrate (Digoxin)CompletedNCT02254148Phase 1
• Study to Determine the Effects of Multiple-dose Omeprazole on the Single-dose Pharmacokinetics of Tipranavir (TPV) Coadministered With Ritonavir (RTV) in Healthy Adult VolunteersCompletedNCT02253875Phase 1
• A Phase 1 Study to Examine the Pharmacodynamics of Different AZD1722 FormulationsCompletedNCT02249936Phase 1
• Investigating the Influence of Omeprazole on the Pharmacokinetics of Oral Semaglutide in Healthy SubjectsCompletedNCT02249871Phase 1
• A Study to Assess the Effects of Single Ascending Doses (SAD) of ASP8477, the Effect That Food Has on the Drug, and the Interaction Between ASP8477 and Omeprazole in Healthy Postmenopausal Females and Healthy Young Vasectomized MalesCompletedNCT02220777Phase 1
• Effects of PQ912 on the Pharmacokinetics of Midazolam and OmeprazoleCompletedNCT02190708Phase 1
• The Effect of NSAIDs After a Rotator Cuff Repair Surgery.WithdrawnNCT02153177Phase 4
• Research of Efficient Use of Omeprazole in Combination With Domperidone in Gastroesophageal Reflux Disease of Mild to Moderate SeverityStatus unknownNCT02140073Phase 4
• The Study of Eustachian Tube Dysfunction and Laryngopharyngeal RefluxWithdrawnNCT02123498Phase 4
• Pilot Trial Of Omeprazole in Idiopathic Pulmonary Fibrosis (IPF)CompletedNCT02085018Phase 2
• "Pharmacodynamic Comparison of Omeprazole Versus Pantoprazole on Platelet Reactivity in Patients With Acute Coronary Syndromes on Dual Antiplatelet Therapy With New P2Y12 Inhibitors" -Trial dOPPLER-Status unknownNCT02028234Phase 4
• A Phase II Trial of Proton Pump Inhibitors With Chemotherapy in Patients With Metastatic Head and Neck CancerWithdrawnNCT02013453Phase 2
• Quadruple and Phytomedicine-based Therapies in H. Pylori InfectionCompletedNCT02004197Phase 2/3
• Drug-Drug Interaction Study With PF-05089771CompletedNCT01934569Phase 1
• Prilosec Bioequivalence Study in Healthy VolunteersCompletedNCT01921920Phase 1
• CYP2C19 Genotype Predictor of Gastric Acid SuppressionWithdrawnNCT01824199Early Phase 1
• To Evaluate the Effect of Ritonavir or Omeprazole on the Pharmacokinetics of Samatasvir (IDX719) in Healthy Participants (MK-1894-006)CompletedNCT01813552Phase 1
• Evaluation of the Efficacy in Decreasing Iron Absorption in Patients With Congenital Dyserythropoietic Anemia Type I by Treatment With LOSECStatus unknownNCT01795794Phase 4
• A Drug Interaction Study of the Effects of PPI-668 on the Pharmacokinetics of Midazolam and OmeprazoleCompletedNCT01786382Phase 1
• Laryngomalacia StudyWithdrawnNCT01782560Phase 1
• The Insulin Independence Trial (IIT) Evaluating the Safety and Efficacy of Oral Cyclosporine and Oral Omeprazole for Insulin Independence Among Recent Onset Type 1 Diabetes PatientsWithdrawnNCT01762644Phase 3
• Omeprazole and Pantoprazole Antiplatelet Effect of Clopidogrel Clinical Trials(OPEN)Status unknownNCT01735227Phase 4
• Effect of Omeprazole on MetforminCompletedNCT01711320Phase 1
• A Three-Period Study to Investigate the Relative Bioavailability and Pharmacodynamic Profiles of a Zegerid 20mg Capsule, Zegerid 20mg Powder for Oral Suspension and Losec 20mg Capsule in Healthy Adult Volunteers Under Fasting ConditionsCompletedNCT01710995Phase 1
• Management of Myocardial Injury After Noncardiac Surgery TrialCompletedNCT01661101Phase 3
• Optimal Dosing of Omeprazole in NeonatesCompletedNCT01657578Phase 2
• Effect of Repeated Doses of YF476, Omeprazole and Placebo on Stomach Acidity in Healthy VolunteersCompletedNCT01599858Phase 1
• Pharmacokinetic Drug-drug Interaction Study of Dovitinib (TKI258) in Patients With Advanced Solid TumorsCompletedNCT01596647Phase 1
• Study in Healthy Volunteers to Assess Effect of Omeprazole and Ranitidine on the Pharmacokinetics of VandetanibCompletedNCT01539655Phase 1
• Drug-drug Interaction Study of Tivantinib (ARQ 197) With Omeprazole, S-warfarin, Caffeine, Midazolam, and Digoxin in Cancer SubjectsCompletedNCT01517399Phase 1
• Pharmacokinetic Study of the HCV Protease Inhibitor Bo-cePRevir and the Proton Pump Inhibitor OMeprazOle (PROMO)CompletedNCT01470690Phase 1
• Compare the Pharmacokinetics of Omeprazole, Rosiglitazone, and Desipramine When Administered With Avanafil in Healthy Male SubjectsCompletedNCT01415128Phase 1
• A Study to Evaluate The Effects of Two Different Meal Types, Omeprazole And Ranitidine On Danoprevir Pharmacokinetics When Coadministered With Ritonavir in Healthy VolunteersCompletedNCT01392755Phase 1
• A Study to Compare Omeprazole Administered as Zegerid® Powder and as Prilosec® Capsule in Healthy Participants (P08050)(CL2010-12)CompletedNCT01337804Phase 1
• H. Pylori Eradication Using Pyklear in Adults in El Paso, Texas: a Pilot StudyStatus unknownNCT01335334Phase 4
• BAY73-4506 Probe Substrate StudyCompletedNCT01287598Phase 1
• Comparing Omeprazole With Fluoxetine for Treatment of Non Erosive Reflux Disease and Its Subgroups: a Double-blind Placebo-controlled Clinical TrialCompletedNCT01269788Phase 2/3
• Impact of Omeprazole and Fluvoxamine on Platelet Response to ClopidogrelCompletedNCT01269333Phase 1
• Pharmacokinetic Study to Investigate Low-dose Combinations of a Cocktail of Seven Drugs for Simultaneous Phenotyping of CytochromesCompletedNCT01187862Phase 1
• Omeprazole Delayed Release (DR) Capsules Bioequivalence Study of Dr. Reddys Under Fed ConditionCompletedNCT01170182Phase 1
• Omeprazole Delayed Release (DR) Capsules Bioequivalence Study of Dr. Reddys Under Fasting ConditionsCompletedNCT01170169Phase 1
• Study to Assess the Pharmacodynamics/Pharmacokinetics After Repeated Dosing of D961H 10 mg and Omeprazole 10 mg in Japanese Healthy Male SubjectsCompletedNCT01159145Phase 1
• Mucosta in Gastric Ulcer Treatment, Effectiveness and Safety EvaluationCompletedNCT01150162Phase 3
• Study Evaluating Effect of Esomeprazole, Omeprazole or Lansoprazole on the Pharmacodynamics (PD) and Pharmacokinetics (PK) of ClopidogrelCompletedNCT01147588Phase 1
• Comparison of Antisecretory Effect of a Single Dose of Rabeprazole 20 mg and Omeprazole 20 mg in Obese SubjectsCompletedNCT01136317Phase 2
• Bioequivalence Study of Omeprazole Magnesium 20 mg DR Capsules Under Fasting ConditionsCompletedNCT01045642Phase 1
• Bioequivalence Study of Omeprazole Magnesium 20 mg DR Capsule Under Fed ConditionsCompletedNCT01045434Phase 1
• Clopidogrel Proton-Pump Inhibitors StudyWithdrawnNCT01016717Phase 4
• TMC278-TiDP6-C154: Evaluation of the Possible Influence of Omeprazole Intake - and the pH Increase in the Stomach Triggered by Omeprazole Intake - on the Blood Levels of TMC278 in Healthy VolunteersCompletedNCT01001247Phase 1
• Evaluation of Omeprazole Effect on GlaucomaStatus unknownNCT01000220Phase 1
• Development of Cocktail for Measuring the Activity of Important Cytochrome P450 EnzymesTerminatedNCT00981929Not applicable
• Platelet Inhibitory Effect of Clopidogrel in Patients Treated With Omeprazole, Pantoprazole, or FamotidineCompletedNCT00950339Phase 4
• A Phase I Study To Estimate The Effect Of Ketoconazole And Omeprazole On The Pharmacokinetics Of Dimebon In Healthy Subjects Who Are Normal Or Poor CYP2D6 MetabolizersCompletedNCT00931073Phase 1
• Comparison of Oral Rabeprazole vs. iv Omeprazole in Mild to Moderate Nonvariceal Upper Gastrointestinal BleedingStatus unknownNCT00861640Phase 4
• Relation of Metabolic Rate of Omeprazole and Eradication of Helicobacter Pylori InfectionCompletedNCT00854451Phase 4
• Effect of Helicobacter Pylori Treatment on Idiopathic Central Serous Chorioretinopathy (ICSCR)CompletedNCT00817245Phase 1/2
• Effect of Eradication of Helicobacter Pylori on the Dyspeptic SymptomsCompletedNCT00772837Not applicable
• Quality of Life Validation in LaryngitisCompletedNCT00641264Phase 4
• A Study of MK-8033 in Patients With Advanced Solid Tumors (MK-8033-001)CompletedNCT00559182Phase 1
• Omeprazole and Reflux Disease - Improvement of Clinical Outcome by Genotype-adjusted DosingTerminatedNCT00537732Phase 4
• Optimal Dose of Omeprazole After Endoscopic Treatment of Bleeding Peptic UlcersCompletedNCT00519519Phase 3
• Helicobacter Pylori and Iron Deficiency: Prevalence of Association and Effect of TherapyWithdrawnNCT00475527Phase 4

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