Drugs / Omeprazole
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Omeprazole

also known as Prilosec · Losec · OMP · ABBOTT · Antra MUPS · Lansomeprazole · Lanzol · OME · +5 more

Other / unclassified targets CYP1A2, CYP2C19, FASN via inhibition

Developed for
gastroesophageal reflux disease · Helicobacter pylori infectious disease · dyspepsia · gastric ulcer · coronary artery disorder · Crohn disease · active peptic ulcer disease · breast cancer
+39 more · castration-resistant prostate carcinoma · esophagitis · gastritis · NAFLD1 · peptic ulcer disease · Barrett esophagus · eosinophilic esophagitis · gastric cancer · lymphoma · peptic esophagitis · achlorhydria · chemotherapy-induced neuropathy · chronic rhinosinusitis · colorectal neoplasm · congenital dyserythropoietic anemia type 1 · COVID-19 · esophageal varices with bleeding · exocrine pancreatic carcinoma · fatty liver disease · gastric mucosa-associated lymphoid tissue lymphoma · gastric neoplasm · head and neck cancer · idiopathic pulmonary fibrosis · lung disorder · preneoplastic lesion · refractory malignant neoplasm · ulcer disease · upper respiratory tract disorder · Zollinger-Ellison syndrome · central serous chorioretinopathy · cystic fibrosis · digestive system disorder · duodenal ulcer · exocrine pancreatic insufficiency · food allergy · gastrin secretion abnormality · glaucoma · hemorrhagic disease · laryngeal disorder
Investigated by
AstraZeneca · Bristol-Myers Squibb · Boehringer Ingelheim · Eli Lilly and Company · GlaxoSmithKline · Jiangsu HengRui Medicine Co., Ltd.
+293 more · POZEN · Pfizer · Sanofi · Janssen Research & Development, LLC · National Cancer Institute (NCI) · Merck Sharp & Dohme LLC · Amgen · Bayer · Celgene Corporation · Hoffmann-La Roche · Loxo Oncology, Inc. · Tehran University of Medical Sciences · Alexion Pharmaceuticals, Inc. · Bausch Health Americas, Inc. · Johnson & Johnson Pharmaceutical Research & Development, L.L.C. · Novartis Pharmaceuticals · AbbVie · Abbisko Therapeutics Co, Ltd · Acerta Pharma BV · Afferent Pharmaceuticals, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA) · Ajou University School of Medicine · Assistance Publique - Hôpitaux de Paris · Astellas Pharma Europe B.V. · Beijing Children's Hospital · Biogen · Chinese University of Hong Kong · Cogentus Pharmaceuticals · Daiichi Sankyo · Dr. Reddy's Laboratories Limited · Emalex Biosciences Inc. · Genentech, Inc. · Gilead Sciences · Hadassah Medical Organization · Idorsia Pharmaceuticals Ltd. · Jules Desmeules · Medivation, Inc. · National Center for Complementary and Integrative Health (NCCIH) · National Institute of General Medical Sciences (NIGMS) · Nuventra, Inc. · Parexel · Procter and Gamble · Radboud University Medical Center · Shire · Takeda · Tanabe Pharma Corporation · Tanta University · The University of Texas Health Science Center, Houston · University Hospital, Basel, Switzerland · University Hospital, Geneva · University of Dundee · University of Michigan Rogel Cancer Center · ViiV Healthcare · Washington State University · Xspray Pharma AB · Abliva AB · Academy Military Medical Science, China · Academy of Finland · Achillion, a wholly owned subsidiary of Alexion · Agios Pharmaceuticals, Inc. · Ahon Pharmaceutical Co., Ltd. · Allist Pharmaceuticals, Inc. · Alnylam Pharmaceuticals · AnHeart Therapeutics Inc. · Aragon Pharmaceuticals, Inc. · Ardelyx · Assaf-Harofeh Medical Center · Assiut University · Atea Pharmaceuticals, Inc. · Autonomous University of Nuevo León · Avance Clinical Pty Ltd. · Axis Clinicals Limited · Aya Mohamed Sadek Elsaid · Ayman Magd Eldin Mohammad Sadek · Bausch & Lomb Incorporated · all 299 on the full record

Regulatory milestones approvals, filings & regulatory actions · 11 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Label expansions (10) US (FDA) PRILOSEC 1991-06-12 – 2016-02-03 fda.gov
Approved US (FDA) PRILOSEC 1989-09-14 fda.gov

Trials 342 · started per year

today
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PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 09 trials
Phase 0 NCT06693960 Sep 2024 → Dec 2026 expected Washington State University Recruiting No outcome recorded
Phase 0 NCT06378398 Jun 2024 → Feb 2026 colorectal neoplasm University of Michigan Rogel Cancer Center Completed No outcome recorded
Phase 0 NCT05891119 Jun 2023 → Aug 2024 atopic eczema Amgen Completed No outcome recorded
Phase 0 NCT04930991 Sep 2021 → Mar 2026 exocrine pancreatic carcinoma University of Oklahoma Terminated No outcome recorded
Phase 0 NCT05005910 Sep 2021 → Dec 2022 peptic ulcer disease Uayporn Kaosombatwattana Completed No outcome recorded
Phase 0 NCT04170270 Nov 2019 → Dec 2020 active peptic ulcer disease Assiut University Unknown No outcome recorded
Phase 0 NCT04525664 Oct 2018 → May 2019 Helicobacter pylori infectious disease, dyspepsia Washington University School of Medicine Completed No outcome recorded
Phase 0 NCT02844621 May → Dec 2016 The University of Texas Health Science Center at San Antonio Completed No outcome recorded
Phase 0 NCT01824199 Mar 2013 → Nov 2016 esophagitis Mayo Clinic Withdrawn No outcome recorded
Phase 1203 trials
Phase 1 NCT07700953 Jul → Aug 2026 overdue Abbisko Therapeutics Co, Ltd Not yet recruiting No outcome recorded
Phase 1 NCT07665723 Jun 2026 → Jul 2027 expected ulcerative colitis Hoffmann-La Roche Recruiting No outcome recorded
Phase 1 NCT07565441 May → Nov 2026 expected autosomal dominant polycystic kidney disease Jemincare Not yet recruiting No outcome recorded
Phase 1 NCT07426042 Apr → May 2026 overdue Min Kyu Park Not yet recruiting No outcome recorded
Phase 1 NCT07214662 Jan 2026 → Jun 2030 expected breast cancer Genentech, Inc. Recruiting No outcome recorded
Phase 1 NCT07223671 Dec 2025 → Feb 2026 Bristol-Myers Squibb Completed No outcome recorded
Phase 1 NCT07269756 Dec 2025 → Mar 2026 obesity disorder Shandong Suncadia Medicine Co., Ltd. Completed No outcome recorded
Phase 1 NCT07259330 Oct 2025 → Mar 2026 SpringWorks Therapeutics, Inc., a healthcare company of Merck KGaA, Darmstadt, Germany Completed No outcome recorded
Phase 1 NCT07235748 Oct → Dec 2025 Servier Completed No outcome recorded
Phase 1 NCT07149415 Sep → Oct 2025 Biogen Completed No outcome recorded
Show all 203 trials opens the full record — a long page
Phase 1/23 trials
Phase 1/2 NCT02892357 Jan 2017 → Sep 2019 gastroesophageal reflux disease Xiyuan Hospital of China Academy of Chinese Medical Sciences Unknown No outcome recorded
Phase 1/2 NCT01109381 May 2010 → Dec 2011 Helicobacter pylori infectious disease Synergy Pharmaceuticals Pte. Ltd. Terminated No outcome recorded
Phase 1/2 NCT01086722 Feb 2010 → Feb 2013 morbid obesity Hospital del Mar Medical Research Institute (IMIM) Completed No outcome recorded
Phase 219 trials
Phase 2 NCT06510010 Dec 2024 → Dec 2026 expected chemotherapy-induced toxicity Sixth Affiliated Hospital, Sun Yat-sen University Recruiting No outcome recorded
Phase 2 NCT06861478 Oct 2024 → Aug 2026 overdue Autonomous University of Nuevo León Recruiting No outcome recorded
Phase 2 NCT04562116 Dec 2021 → Jun 2023 atopic eczema Galderma R&D Completed No outcome recorded
Phase 2 NCT04337580 Mar 2021 → Feb 2028 expected castration-resistant prostate carcinoma, refractory malignant neoplasm Wake Forest University Health Sciences Recruiting No outcome recorded
Phase 2 NCT03428568 Mar 2018 → Mar 2019 dyspepsia, gastritis King Abdullah International Medical Research Center Unknown No outcome recorded
Phase 2 NCT02595372 Nov 2015 → Nov 2019 breast cancer Kathy Miller Completed No outcome recorded
Phase 2 NCT02085018 Mar 2014 → Sep 2016 idiopathic pulmonary fibrosis Newcastle-upon-Tyne Hospitals NHS Trust Completed No outcome recorded
Phase 2 NCT02013453 Dec 2013 → Dec 2016 head and neck cancer University of Michigan Rogel Cancer Center Withdrawn No outcome recorded
Phase 2 NCT01712711 Sep 2012 → Feb 2013 NAFLD1 Tehran University of Medical Sciences Completed No outcome recorded
Phase 2 NCT01876108 Jul 2012 → Jul 2013 fatty liver disease Tehran University of Medical Sciences Completed No outcome recorded
Phase 2/31 trial
Phase 2/3 NCT02004197 Jan 2010 → Sep 2012 Helicobacter pylori infectious disease Hafiz Muhammad Asif Completed No outcome recorded
Phase 332 trials
Phase 3 NCT07104318 Jul 2026 → Jun 2029 expected Helicobacter pylori infectious disease VA Office of Research and Development Not yet recruiting No outcome recorded
Phase 3 NCT06393868 Nov 2024 → Dec 2027 expected thrombotic disease, venous thromboembolism Ottawa Hospital Research Institute Recruiting No outcome recorded
Phase 3 NCT05646862 Jun 2023 → Nov 2026 expected breast cancer Hoffmann-La Roche Active not recruiting No outcome recorded
Phase 3 NCT05680870 Feb 2023 → Dec 2024 chemotherapy-induced neuropathy Aya Mohamed Sadek Elsaid Completed No outcome recorded
Phase 3 NCT02422706 Jan 2015 → Dec 2018 gastritis Tanta University Unknown No outcome recorded
Phase 3 NCT02621359 Jan 2015 → Dec 2022 dyspepsia Tanta University Unknown No outcome recorded
Phase 3 NCT01980095 Nov 2013 → Jun 2015 Helicobacter pylori infectious disease, dyspepsia RedHill Biopharma Limited Completed No outcome recorded
Phase 3 NCT01661101 Jan 2013 → Mar 2018 myocardial disorder Population Health Research Institute Completed No outcome recorded
Phase 3 NCT01462318 Nov 2011 → Jan 2016 relapsing-remitting multiple sclerosis Biogen Completed No outcome recorded
Phase 3 NCT01499368 Nov 2011 → Nov 2012 esophagitis Boryung Pharmaceutical Co., Ltd Completed No outcome recorded
Phase 449 trials
Phase 4 NCT07611162 May 2026 → May 2030 expected gastroesophageal reflux disease University of Mons Not yet recruiting No outcome recorded
Phase 4 NCT07040839 Jul 2025 → Feb 2026 overdue Helicobacter pylori infectious disease Rehman Medical Institute - RMI Not yet recruiting No outcome recorded
Phase 4 NCT06690164 Jun → Dec 2025 overdue National University Hospital, Singapore Recruiting No outcome recorded
Phase 4 NCT05624229 Oct 2023 → Dec 2025 overdue esophageal varices with bleeding West China Hospital Not yet recruiting No outcome recorded
Phase 4 NCT05799105 Mar 2023 → Mar 2027 expected ulcer disease Stephen Firkins Recruiting No outcome recorded
Phase 4 NCT06050824 Jul 2022 → Jul 2023 Helicobacter pylori infectious disease Helwan University Completed No outcome recorded
Phase 4 NCT04149470 Oct 2020 → Aug 2024 overdue eosinophilic esophagitis University of Colorado, Denver Active not recruiting No outcome recorded
Phase 4 NCT03781596 Oct 2018 → Oct 2020 eosinophilic esophagitis Claire Daniels Unknown No outcome recorded
Phase 4 NCT04039412 Jun → Dec 2018 Helicobacter pylori infectious disease Ayman Magd Eldin Mohammad Sadek Completed No outcome recorded
Phase 4 NCT03347513 Nov 2017 → Mar 2019 Helicobacter pylori infectious disease, iron deficiency anemia, pregnancy disorder Kasr El Aini Hospital Unknown No outcome recorded
Phase not applicable26 trials
NCT06943794 Mar 2026 → May 2030 expected gastric cancer Fudan University Not yet recruiting No outcome recorded
NCT06917963 Apr 2025 → Jun 2027 expected colon carcinoma, ileus, inflammatory bowel disease Medical University of Gdansk Recruiting No outcome recorded
NCT05741385 Oct 2023 → Aug 2024 cirrhosis of liver Boehringer Ingelheim Completed No outcome recorded
NCT04394663 Oct 2020 → May 2025 overdue King Chulalongkorn Memorial Hospital Recruiting No outcome recorded
NCT04333407 Apr 2020 → Nov 2021 COVID-19 Imperial College London Terminated No outcome recorded
NCT03337945 Apr 2018 → Jun 2021 cirrhosis of liver University Hospital, Basel, Switzerland Completed No outcome recorded
NCT03365609 Sep 2017 → Oct 2025 overdue Helicobacter pylori infectious disease Ying HUANG Recruiting No outcome recorded
NCT02689583 Mar 2016 → Mar 2017 gastric ulcer, gastritis First Affiliated Hospital of Zhejiang University Unknown No outcome recorded
NCT02590185 Dec 2015 → Dec 2019 major depressive disorder Assistance Publique - Hôpitaux de Paris Unknown No outcome recorded
NCT02789527 Nov 2015 → Apr 2017 Estella S. Poloni Completed No outcome recorded
Also used as a comparator or background therapy in 157 trials
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 02 trials
Phase 0 NCT03105375 Comparator Feb → Oct 2017 Cinclus Pharma Holding AB Completed No outcome recorded
Phase 0 NCT01465113 Background May 2010 → Feb 2016 Barrett esophagus Case Comprehensive Cancer Center Completed No outcome recorded
Phase 123 trials
Phase 1 NCT07156201 Background Aug 2025 → Mar 2026 overdue Actio Biosciences, Inc. Recruiting No outcome recorded
Phase 1 NCT04199624 Background Oct 2021 → Jun 2023 achlorhydria Indiana University Completed No outcome recorded
Phase 1 NCT03100838 Comparator Mar → Dec 2017 Food and Drug Administration (FDA) Completed No outcome recorded
Phase 1 NCT02950259 Background Feb 2017 → May 2019 triple-negative breast carcinoma Providence Health & Services Completed No outcome recorded
Phase 1 NCT03033342 Background Aug 2016 → Feb 2017 MicuRx Completed No outcome recorded
Phase 1/28 trials
Phase 1/2 NCT03167398 Background Feb 2018 → Dec 2019 Rambam Health Care Campus Completed No outcome recorded
Phase 1/2 NCT02272868 Background Jan 2015 → Oct 2016 Crohn disease Seattle Children's Hospital Terminated No outcome recorded
Phase 1/2 NCT02504554 Background Jul 2014 → Apr 2016 autism spectrum disorder, digestive system disorder Arizona State University Completed No outcome recorded
Phase 1/2 NCT02803216 Background Jan 2013 → Dec 2015 Helicobacter pylori infectious disease Xiyuan Hospital of China Academy of Chinese Medical Sciences Completed No outcome recorded
Phase 1/2 NCT01287195 Background Apr 2011 → May 2013 ulcerative colitis Brigham and Women's Hospital Completed No outcome recorded
Phase 221 trials
Phase 2 NCT07293910 Comparator Feb → Dec 2026 expected Helicobacter pylori infectious disease Tanta University Recruiting No outcome recorded
Phase 2 NCT06150898 Background May 2025 → Apr 2027 expected estrogen-receptor positive breast cancer Jules Bordet Institute Recruiting No outcome recorded
Phase 2 NCT06539494 Comparator Jul 2024 → Jan 2026 overdue metabolic dysfunction-associated steatotic liver disease Academic Medical Center - University of Amsterdam Recruiting No outcome recorded
Phase 2 NCT06973889 Background Dec 2023 → Dec 2024 Helicobacter pylori infectious disease, digestive system disorder Mashhad University of Medical Sciences Completed No outcome recorded
Phase 2 NCT04672018 Comparator Nov 2022 → Feb 2023 gastritis University of Karachi Completed No outcome recorded
Phase 2/32 trials
Phase 2/3 NCT06719622 Comparator Jul 2024 → Dec 2027 expected Crohn disease Medical University of Warsaw Enrolling by invitation No outcome recorded
Phase 2/3 NCT01269788 Comparator Aug 2010 → Aug 2011 gastroesophageal reflux disease Tehran University of Medical Sciences Completed No outcome recorded
Phase 330 trials
Phase 3 NCT07275827 Comparator Feb → Apr 2026 overdue Helicobacter pylori infectious disease Tanta University Not yet recruiting No outcome recorded
Phase 3 NCT04069286 Comparator Mar 2025 → Jul 2026 overdue dyspepsia Infan Industria Quimica Farmaceutica Nacional Not yet recruiting No outcome recorded
Phase 3 NCT07487142 Comparator Jun 2024 → Dec 2025 Helicobacter pylori infectious disease Beni-Suef University Completed No outcome recorded
Phase 3 NCT05863858 Comparator Jun 2020 → Dec 2021 Helicobacter pylori infectious disease Iyad Naeem Muhammad, PhD Completed No outcome recorded
Phase 3 NCT03662269 Background Oct 2018 → Aug 2020 respiratory system disorder The First Affiliated Hospital of Guangzhou Medical University Unknown No outcome recorded
Phase 448 trials
Phase 4 NCT07021729 Comparator Dec 2025 → Mar 2026 overdue Helicobacter pylori infectious disease Rehman Medical Institute - RMI Not yet recruiting No outcome recorded
Phase 4 NCT06255886 Comparator Oct 2025 → Dec 2026 expected gastroesophageal reflux disease Odense University Hospital Recruiting No outcome recorded
Phase 4 NCT06943482 Comparator Jul 2025 → Feb 2028 expected granulomatous mastitis National University Hospital, Singapore Not yet recruiting No outcome recorded
Phase 4 NCT06999577 Comparator Jun 2025 → May 2029 expected gastroesophageal reflux disease, voice disorders University of California, San Diego Recruiting No outcome recorded
Phase 4 NCT07312721 Background Jan → Dec 2024 Helicobacter pylori infectious disease, chronic gastritis, peptic ulcer disease Azfar Farogh Completed No outcome recorded
Phase not applicable23 trials
NCT07654049 Comparator Jun 2026 → Jun 2027 expected digestive system disorder Second Affiliated Hospital, School of Medicine, Zhejiang University Not yet recruiting No outcome recorded
NCT07142486 Comparator Sep 2025 → Jun 2026 digestive system disorder McGill University Completed No outcome recorded
NCT07086937 Background Jan → Jun 2025 Helicobacter pylori infectious disease Muhammad Aamir Latif Completed No outcome recorded
NCT06566794 Comparator Aug 2024 → Jan 2025 Helsinki University Central Hospital Completed No outcome recorded
NCT06114836 Comparator Mar 2024 → Nov 2028 expected gastroesophageal reflux disease Nationwide Children's Hospital Recruiting No outcome recorded

Press releases naming this drug 1 release

DateIssuerRelease
2010-01-07 Teva Branded Pharmaceutical Products R&D, Inc. Teva Announces Settlement Agreements With AstraZeneca Regarding Generic Prilosec® and Nexium® tevapharm.com

Evidence & citations 18 cited values

Every value below carries the sentence it was read from. 501 sources stand behind the page.

FieldValueCited text
Known as omeprazole “After successful hemostasis, patients with high-risk PU bleeding (Forrest class Ia/Ib, IIa/IIb) were randomized into 1:1 to receive vonoprazan (20 mg twice a day for 3 days,...” PMID 38582271 Apr 2024
492

“We administered the Basel phenotyping cocktail (caffeine, efavirenz, flurbiprofen, omeprazole, metoprolol, midazolam) to patients with liver cirrhosis (n = 16 Child A, n = 15...” PMID 37328712 Jun 2023

“Ten healthy Caucasian subjects were orally dosed with the CIME combination (caffeine-CYP1A2, repaglinide-CYP2C8, tolbutamide-CYP2C9, omeprazole-CYP2C19,...” PMID 25465228 Dec 2014

“Nirogacestat 100 mg BID will be administered orally from Day 1 through Day 17 and an oral dose of CYP cocktail (CYP2B6 [bupropion 20 mg], CYP2C8 [repaglinide 0.05 mg], CYP2C9...” NCT07259330

“Two equally loaded capsules containing: Melatonin (2.0 mg) Nicotine (1.0 mg) Bupropion (37.5 mg) Repaglinide (0.25 mg) Losartan (12.5 mg) Omeprazole (10 mg) Chlorzoxazone...” NCT03563287

“A CYP probe cocktail composed of approved, commercially available drugs (caffeine, flurbiprofen, omeprazole, and midazolam) will be administered concomitantly as a single-dose...” NCT07426042

“BACKGROUND: Zegerid (on demand immediate-release omeprazole and sodium bicarbonate combination therapy) has demonstrated earlier absorption and more rapid pH change compared...” PMID 25706883 Feb 2015

“Allowable PPIs : Rabeprazole Sodium 20 mg QD, Esomeprazole Magnesium 20 mg or 40 mg QD, Lansoprazole 15 mg or 30 mg QD, Pantoprazole 20 mg or 40 mg QD, Omeprazole 20 mg or 40...” NCT00978016

“Ten volunteers received an oral cocktail capsule containing low doses of the probes bupropion (CYP2B6), flurbiprofen (CYP2C9), omeprazole (CYP2C19), dextromethorphan (CYP2D6),...” PMID 24722393 Apr 2014

“Group 1: (110) participants received reverse hybrid regimen in the form of clarithromycin 500mg bid, omeprazole 20 mg bid, amoxicillin 1gm bid, and metronidazole 500 mg tid for...” NCT04039412

“A Phase 1, Open-Label, Randomized, 3-Way Crossover Study to Evaluate the Relative Bioavailability of a Single Oral Dose of Aspirin Administered as PA32540 (Aspirin/Omeprazole)...” NCT00632086

“All participants were taking a standard dose QD PPI (dexlansoprazole, esomeprazole, esomeprazole magnesium, lansoprazole, omeprazole, pantoprazole, pantoprazole sodium...” NCT02637557

“Participants were randomized in a 3-way crossover design and received, in random order, Zegerid OTC Capsules (20 mg omeprazole and 1100 mg sodium bicarbonate), Prilosec OTC...” NCT01077076

“Dual therapy for 7 days: 40 mg omeprazole and 1g amoxicillin every 12h. After dual therapy continue with a quadruple therapy for 7 days: 40 mg omeprazole, 1g amoxicillin, 500...” NCT01464060

“12 grams of egg yolk powder containing about 2 grams of antibody twice a day for 2 weeks along with usual antibiotic treatment including OAC or omeprazole (40 mg/day),...” NCT06973889

“patients will receive LOAD therapy comprising of levofloxacin (250 mg with breakfast), omeprazole (40 mg before breakfast), nitazoxanide (Alina) (500 mg twice daily with meals)...” NCT06050824

“A single dose of selective substrates (probe drugs) was administered orally on days 15 and 30: caffeine (CYP1A2), tolbutamide (CYP2C9), omeprazole (CYP2C19), dextromethorphan...” PMID 37768317 Sep 2023

Omeprazole 20 mg twice daily, in combination with bismuth subcitrate potassium (40 mg), metronidazole 125 mg and tetracycline 125 mg HCl. All patients must take 6 capsules of...” NCT00712413

“Participants will take a combination of 3 drugs (omeprazole 20 mg capsule, tolbutamide 500 mg tablet, and midazolam 2mg/mL liquid) orally (by mouth) or 2 tablets of study drug...” NCT01147887

“CYP substrates (Caffeine, Warfarin Sodium, Midazolam, Omeprazole, and Metoprolol Tartrate) will administered orally at Week 0 (Day 1) and Week 10 as per the commercially...” NCT04562116

“The control group will be treated with Omeprazole 20mg every 12 hours, Amoxicillin 1 gr every 12 hours, Clarithromycin 500 mg every 12 hours, Placebo identical to Bismuth...” NCT05664685

“The study will evaluate the pharmacokinetics (PK) and safety effects of co-administration of radiprodil with oral midazolam, rosuvastatin, warfarin, digoxin, and omeprazole in...” NCT06975605

“Effects of BMS-955176 on the Single-dose Pharmacokinetics of Probe Substrates (Caffeine, Metoprolol, Montelukast, Flurbiprofen, Omeprazole, Midazolam, Digoxin, and Pravastatin)...” NCT02578277

“Eradication group patients received oral omeprazole 20 mg, amoxicillin 1 g, and clarithromycin 500 mg twice daily for a week, whereas control group patients received no H...” PMID 29800546 May 2018

“Prednisone 30 mg/day, supplemented with calcium and omeprazole, and Prednisone were slowly reduced to 10 mg/day after symptoms were relieved, and combined with 7.5 mg/week MTX therapy.” NCT05395949

“Drug cocktail comprise of midazolam (2 mg), warfarin (10 mg), vitamin K (10 mg), omeprazole (40 mg), and fexofenadine (30 mg) will be administered on Study Day 1 and 43.” NCT02592317

“In standard triple therapy, children will be treated by Omeprazole(0.8-1.0mg/kg.d,bid), Amoxicillin (30-50mg/kg.d bid)and Clarithromycin (15-20mg/kg.d bid) for 10 days.” NCT02635191

“The intended dose is RHB-105 (12.5 mg rifabutin, 250 mg amoxicillin, and 10 mg omeprazole capsules) 4 capsules every eight hours, equivalent to a total daily dose of:” NCT01980095

“The triple regimen was defined as a combination of amoxicillin 1 gm twice a day, clarithromycin 500 mg twice a day and omeprazole is given in 40 mg twice a day dose.” NCT03968302

“probe drugs for simultaneous phenotyping of CYP1A2 (caffeine), CYP2B6 (efavirenz), CYP2C9 (losartan), 2C19 (omeprazole), CYP2D6 (metoprolol), and CYP3A4 (midazolam)” PMID 26123704 Jan 2016

“RHB-105 is an 'all-in-one' combination oral capsule consisting of combination therapy of Amoxicillin, Omeprazole and Rifabutin; as well as separate Riboflavin” NCT03198507

“Cocktail = Caffeine 200 mg, Metoprolol 50 mg, Montelukast 10 mg, Flurbiprofen 50 mg, Omeprazole 40 mg, Midazolam 5 mg, Digoxin 0.25 mg, and Pravastatin 40 mg” NCT02045966

“PPI-based triple therapy regimen consisted of (Omeprazole /pantoprazole 40mg) with amoxicillin (1000mg) and clarithromycin (500mg) twice daily for 14 days” NCT07275827

“ZYN002 (transdermal), midazolam (oral), omeprazole (oral), losartan (oral), dextromethorphan (oral), caffeine (oral), repaglinide (oral), bupropion (oral)” NCT06930872

“Subject will take a proton pump inhibitor (PPI) of their choice (Omeprazole, Esomeprazole, Pantoprazole, or Lansoprazole) 2 times a day for 8 weeks.” NCT02788591

“Day 1: Single oral dose of a cocktail of cytochrome P450 substrates (caffeine 100 mg, midazolam 2 mg, omeprazole 20 mg and metformin (transporter)” NCT05657613

“Oral drug cocktail consisting of caffeine (100 mg), dextromethorphan (30 mg), losartan (25 mg), midazolam syrup (2 mg), and omeprazole (20 mg).” NCT06693960

“The regimen consists of Omeprazole (20 mg/BD)+ Amoxicillin (1 g/day)+ Bismuth subcitrate (240 mg/BD)+ Azithromycin (500 mg/BD)for two weeks” NCT01759628

“The regimen consists of Omeprazole (20 mg/BD)+ Amoxicillin (1 g/day)+ Bismuth subcitrate (240 mg/BD)+ Azithromycin (500 mg/BD)for two weeks” NCT01712711

“Patient receive Omeprazole plus amoxicillin during 5 days and then omeprazole plus clarithromycin and metronidazole during another 5 days” NCT02395458

“followed by 5 days of omeprazole (20 mg/12 h), clarithromycin (500 mg/12 h) and metronidazole (500 mg/12 h)), or concomitant treatment” PMID 23665990 May 2013

“probe drugs will be oral midazolam (3 mg), warfarin (10 mg), omeprazole (40 mg), caffeine (200 mg), and dextromethorphan (30 mg).” NCT00401583

“Single oral administration of caffeine (100mg), omeprazole (20mg), losartan (25mg), dextromethorphan (30mg), and midazolam (1mg)” NCT04201197

“The Geneva cocktail is composed of caffeine, bupropion, flurbiprofen, omeprazole, dextromethorphan, midazolam, and fexofenadine.” PMID 32851583 Nov 2020

“Single administration on Day 13 of cocktail of CYP450 substrates: warfarin tablet, omeprazole capsule and caffeine oral solution” NCT02623296

“Repaglinide 0.25 mg, caffeine 100 mg, warfarin 10 mg (with vitamin K), omeprazole 40 mg, dextromethorphan 30 mg, midazolam 2 mg” NCT04233437

“Drug cocktail consists of caffeine, warfarin plus vitamin K, omeprazole, dextromethorphan, and midazolam, administered orally” NCT03718884

“Drug cocktail (caffeine, warfarin + vitamin K, omeprazole, dextromethorphan, midazolam) orally once daily, day 1 and day 20” NCT01001299

“modified "karolinska cocktail" (dextromethorphan, caffeine, losartan, omeprazole and paracetamol) before bariatric surgery” NCT01086722

“Patients will be treated concomitantly with omeprazole 20mg once in the evening before FMT and daily for the next 2 days.” NCT03167398

“Pancreatic Enzyme Replacement Therapy (PERT) 50000 Ph.U./meal + 25000 Ph.U./snack + Omeprazole 20mg once daily on fasting” NCT05480241

“Patients with H.pylori infection will take one tablet of 30 mg a day of Omeprazole for 14 days orally in the morning” NCT00825630

“Regimen 1 (R1): Clarithromycin 500mg BD, plus metronidazole 400mg TDS for 14days and Omeprazole 40mg BD for 6 weeks.” NCT07021729

“Zegerid (20 mg omeprazole/ 1100 mg sodium bicarbonate) taken with approximately 2 oz of water once daily for 7 days.” NCT01005719

“Proton pump inhibitor (eg, omeprazole 20 mg BID), Clarithromycin 500 mg BID, metronidazole 500 mg BID for 14 days” NCT03347513

“Bismuth 524mg QID, Metronidazole 500mg QID, Tetracycline 500MG QID, and Omeprazole 20 mg QID for 14 days.” NCT07104318

Omeprazole 20 mg or Rabeprazole 10 mg bid + clarithromycin 500 mg and amoxicillin 1,000 mg bid for 7 days” NCT01002443

“Famotidine (20mg BID) or Omeprazole (20mg daily) will be prescribed along with NSAIDS for GI prophylaxis” NCT04990804

“oral dose of the Cooperstown Cocktail (midazolam, omeprazole, warfarin, caffeine, and dextromethorphan)” NCT02434861

Omeprazole (20 mg/BD)+ Amoxicillin (1 g/day)+ Bismuth subcitrate (240 mg/BD)+ Azithromycin (500 mg/BD)” NCT01654549

“ten days of standard triple region (20mg omeprazole 20mg, 1.0 amoxicillin, 0.5 clarithromycin, Bid).” NCT02803216

“GT08 is the combination of omeprazole 40mg daily, lauric acid 150-300mg daily, NAC 1.2 - 2g daily” NCT01109381

“PA32540 tablets contain 325 mg enteric coated (EC) aspirin and 40 mg immediate-release omeprazoleNCT00960869

“PA32540 tablets contain 325 mg enteric coated (EC) aspirin and 40 mg immediate-release omeprazoleNCT00961350

“Suggested medications included ranitidine 150 mg PC BID or omeprazole 20 mg PO QD or equivalent.” NCT01042704

“PPI(pantoprazole 40mg, lansoprazole 30mg, esomeprazole 40mg, rabeprazole 20mg, omeprazole 20mg)” NCT01643785

omeprazole 2x1) + clarithromycin 2x500 mg + amoxicilline 2x1000 mg + Bismuth Subsalicylate 2x1” NCT03757650

Omeprazole, 20mg, amoxicillin, 1000mg, and clarithromycin, 500mg, all twice a day for 2 weeks.” NCT01133951

Omeprazole 20mg, lansoprazole 30mg, pantoprazole 40mg, alprazole 5mg, any one of these.” NCT04660123

“BGB-3111 and Drug Cocktail (midazolam, warfarin, omeprazole, digoxin and rosuvastatin)” NCT03561298

“GBT440 capsules followed by Caffeine, S-warfarin+vitamin K, Omeprazole, and Midazolam” NCT02567682

“PPIs (omeprazole, lansoprazole, etc, as not specified) for prevention of peptic ulcer” NCT02288078

Omeprazole (40 mg orally) with collection of a plasma sample 2 hours after dosing.” NCT00164112

omeprazole, esomeprazole, lansoprazole, dexlansoprazole, pantoprazole, rabeprazole” NCT03094416

Omeprazole 40 mg BID, Amoxicillin 1 g BID, Clarithromycin 500 mg BID for 14 days.” NCT07312721

“For IM and PM, in this study, patients selected the standard dose of Omeprazole.” NCT02689583

“Session 1: CYP2C19 phenotyping following a single 10 mg oral dose of omeprazole.” NCT07014930

“Caffeine + Warfarin (plus vitamin K) + Omeprazole + Dextromethorphan + Midazolam” NCT02993471

Omeprazole, Amoxicillin, Metronodazole and TRITEC (ranitidine bismuth citrate)” NCT02004197

“Buspirone 5mg used QID a day after meal plus 20mg omeprazole before breakfast.” NCT03444831

“PA32540 (enteric-coated aspirin 325 mg and immediate-release omeprazole 40 mg)” PMID 26725920 Apr 2016

“proton pump inhibitor-based triple therapy omeprazole /pantoprazole (40 mg)” NCT07293910

“Amoxycillin 1gm twice a day (BD) Clarithromycin 500mg BD Omeprazole 20mg BD” NCT02108704

Omeprazole 1 mg/ kg and continuing nutrition containing cow's milk protein” NCT06255886

Omeprazole 30mg twice Clarithromycin 500mg twice Amoxicillin 1000mg twice” NCT01938534

“500 mg tolbutamide, 40 mg omeprazole, and 30 mg dextromethorphan orally.” NCT02819102

“Use of Omeprazole, Esomeprazole, Lansoprazole, Pantoprazole, Rabeprazole” NCT07611162

“includes midazolam, caffeine, losartan, omeprazole, and dextromethorphan” NCT03505853

“Including the Omeprazole 40 or 80 mg, Clarithromycin and Amoxicillin.” NCT02922699

“1. Omeprazole 0.8mg/kg.d.The maximum dose is less than 40mg per day” NCT03647852

“caffeine, dextromethorphan, flurbiprofen, midazolam, and omeprazoleNCT03720366

“Oral dose of omeprazole, voriconazole, itraconazole, or rifampicin” NCT05822544

“Immediate release omeprazole 40 mg and sodium bicarbonate 1,100 mg” NCT02710994

“Zegerid 20mg capsule (20mg omeprazole and 1100mg sodium carbonate” NCT01710995

“10mg omeprazole and 10mg sham ,once a day,all for 4 weeks.” NCT02892357

“dextromethorphan, caffeine, omeprazole, and midazolam” NCT05334108

“1600 mg GS-9973 (Formulation 1) plus 20 mg omeprazoleNCT01841489

“CYP2C19 (omeprazole 20 mg), CYP2D6 (metoprolol 50 mg)” PMID 39707077 Dec 2024

“Proton pump inhibitor = omeprazole 20 mg twice daily” NCT01507792

“CGT 2168 (clopidogrel, 75 mg and omeprazole, 20 mg)” NCT00620802

“1. Omeprazole (or esomeprazole): 20mg, 2 times/day” NCT06943794

Omeprazole-magnesium 20.6 mg, tablet, single dose” NCT00808769

Omeprazole hard capsule for oral administration.” NCT05123820

omeprazole 40 mg once per day for one month.” NCT03428568

“Children were given omeprazole for 14 days.” NCT07086937

Omeprazole tablets for oral use, 40 mg/day” NCT03195946

Omeprazole, amoxycillin, clarithromycin” NCT03491995

Omeprazole+Amoxicillin+Clarithromycin” NCT03365609

“* omeprazole: two 20 mg oral tablets” NCT04764851

“A capsule of omeprazole ABBOTT® 10mg” NCT02590185

“lansoprazole/omeprazole combination” NCT01129713

Omeprazole 20 mg orally twice daily” NCT01723059

“PPI alone (generic omeprazole)” NCT04130659

“PN 200 (Omeprazole/Naproxen)” NCT00442208

“Group O (omeprazole 20 mg)” NCT02703896

“20 mg omeprazole (CYP2C19)” PMID 31099895 Jul 2019

“indometacin (+Omeprazole)” NCT01146197

“CYP2C19 Omeprazole 10 mg” NCT04814498

Omeprazole (Prilosec)” NCT02039869

Omeprazole (20 mg)” NCT00741468

“Drug: OmeprazoleNCT05624229

“Drug: OmeprazoleNCT03662269

“Drug: OmeprazoleNCT01636557

Omeprazole 20mg” NCT02056743

OmeprazoleNCT00857597

NCT03716427

NCT06162169

NCT01129375

NCT01129388

NCT00446004

NCT01129414

NCT00426595

NCT02249871

NCT02684799

NCT02685150

NCT02685436

NCT00492622

NCT04198948

NCT03378960

NCT06031454

NCT02524210

NCT07235748

NCT03205228

NCT02552537

NCT01657578

NCT02249936

NCT05392127

NCT00964106

NCT04170270

NCT02365558

NCT00903448

NCT00001191

NCT00542347

NCT01458054

NCT00692510

NCT00164866

NCT05981365

NCT07700953

NCT00164931

NCT00420615

NCT00854451

NCT00001337

NCT03547024

NCT01465113

NCT05134350

NCT00327132

NCT02844621

NCT01777854

NCT00141102

NCT01218620

NCT03358706

NCT03781596

NCT04199624

NCT01694706

NCT01911728

NCT02345304

NCT04876807

NCT03551691

NCT02500641

NCT01093755

NCT03291249

NCT05264142

NCT04721704

NCT04617613

NCT06539494

NCT00537732

NCT05651074

NCT05609929

NCT02229877

NCT01735227

NCT05863858

NCT02647086

NCT06943482

NCT01150162

NCT05753774

NCT00641264

NCT01557335

NCT06150898

NCT03531762

NCT00668317

NCT00256737

NCT01813552

NCT01170533

NCT00818870

NCT01275170

NCT04525664

NCT00655746

NCT00674115

NCT04394663

NCT06494761

NCT05497557

NCT06822166

NCT03980496

NCT02609386

NCT01016717

NCT02397382

NCT05438303

NCT01269788

NCT00519519

NCT00402259

NCT07223671

NCT01766050

NCT03058419

NCT03979989

NCT03556592

NCT02085018

NCT05444556

NCT07142486

NCT01415128

NCT02518373

NCT01599858

NCT01762644

NCT03388463

NCT01901276

NCT06917963

NCT05799105

NCT03936374

NCT01470690

NCT02950259

NCT01587885

NCT06686628

NCT01392755

NCT02243553

NCT00367211

NCT02190708

NCT00259051

NCT00298779

NCT05338502

NCT00374101

NCT01415349

NCT01287195

NCT01147588

NCT00861640

NCT02299687

NCT06215430

NCT01187862

NCT06566794

NCT07487142

NCT02438072

NCT02140073

NCT00942136

NCT03650543

NCT00981929

NCT00045799

NCT00719420

NCT02595372

NCT03059303

NCT03033342

NCT00003617

NCT01458990

NCT06605950

NCT05646862

NCT07654049

NCT01570569

NCT02957474

NCT00765206

NCT02492776

NCT07007806

NCT03530995

NCT03302845

NCT02256813

NCT00838682

NCT03028103

NCT02638116

NCT04337580

NCT04108676

NCT04959266

NCT00664209

NCT03457727

NCT03457597

NCT02453022

NCT05517928

NCT01269333

NCT03165253

NCT03561233

NCT00633932

NCT04676035

NCT03362268

NCT01925144

NCT07565441

NCT05342532

NCT02586636

NCT00290823

NCT05468164

NCT01539655

NCT01335334

NCT03864042

NCT04425902

NCT03362281

NCT01323465

NCT01896557

NCT02182336

NCT01678053

NCT02505945

NCT04128787

NCT02530879

NCT00634114

NCT06861478

NCT01408849

NCT01593592

NCT04246762

NCT02515526

NCT02394340

NCT07269756

NCT04028466

NCT00247130

NCT06690164

NCT05635110

NCT07149415

NCT01338077

NCT02016820

NCT00475527

NCT05599828

NCT02762123

NCT02262169

NCT02422706

NCT01824199

NCT05109390

NCT02407119

NCT07214662

NCT00817245

NCT00259077

NCT01786382

NCT04154748

NCT04130659

NCT05273775

NCT06383338

NCT01596647

NCT03793556

NCT01159145

NCT05067439

NCT00357240

NCT02433457

NCT02153177

NCT05254548

NCT01489943

NCT06719622

NCT01934569

NCT07156201

NCT03709355

NCT00989300

NCT07665723

NCT01499368

NCT04069286

NCT00441519

NCT02253875

NCT02536989

NCT02254148

NCT06510010

NCT06948006

NCT00953381

NCT06393868

NCT03086070

NCT03234699

NCT05433896

NCT06562907

NCT06279234

NCT03333824

NCT01822977

NCT03367195

NCT05487235

NCT01452906

NCT04368585

NCT00226044

NCT06145217

NCT00002682

NCT04672018

NCT06322706

NCT03866434

NCT05581992

NCT02724150

NCT01287598

NCT01337804

NCT02013453

NCT01061034

NCT00442052

NCT02760615

NCT05932277

NCT00364481

NCT01517399

NCT05041920

NCT00339768

NCT00559364

NCT01122160

NCT01001247

NCT00640809

NCT06093945

NCT00210470

NCT01361217

NCT00726726

NCT00952978

NCT01000818

NCT00669955

NCT02220777

NCT01851863

NCT04333407

NCT00559182

NCT04643249

NCT03238534

NCT03363815

NCT05891119

NCT07068841

NCT05319899

NCT03131973

NCT01000220

NCT05319912

NCT01983566

NCT02730026

NCT04149470

NCT00931073

NCT07037888

NCT02772601

NCT03327051

NCT01782560

NCT02013427

NCT02893709

NCT04989829

NCT02028234

NCT01795794

NCT07040839

NCT01136317

NCT02391688

NCT03908619

NCT02226783

NCT03267680

NCT00930670

NCT03146325

NCT06315478

NCT05852769

NCT00272467

NCT06114836

NCT00971581

NCT02623816

NCT00003151

NCT01303445

NCT04840888

NCT00557921

NCT01661101

NCT00772837

NCT02123498

NCT04914936

NCT01876108

NCT04930991

NCT06999577

NCT00443170

NCT01822600

NCT00251030

NCT02224053

NCT02272868

NCT03100838

NCT04901663

NCT00942175

NCT02584751

NCT02986334

NCT01566474

NCT05680870

NCT02473627

NCT00442741

NCT00582972

NCT01341600

NCT02790840

NCT00404534

NCT00557349

NCT00930306

NCT02621359

NCT00950339

NCT02740712

NCT01711320

NCT02472600

NCT01462318

NCT05741385

NCT02783040

NCT06378398

Known as ABBOTT “A capsule of omeprazole ABBOTT® 10mg” NCT02590185
Known as Antra MUPS ClinicalTrials.gov intervention name — accepted as the source's own label NCT04679948
Known as Lansomeprazole LansomeprazoleNCT00857597
Known as Lanzol ClinicalTrials.gov intervention name — accepted as the source's own label NCT02711176
Known as Losec “BACKGROUND: Zegerid (on demand immediate-release omeprazole and sodium bicarbonate combination therapy) has demonstrated earlier absorption and more rapid pH change compared...” PMID 25706883 Feb 2015
3

Losec 20mg capsule (20mg omeprazole)” NCT01710995

“1. Brand name: Losec® Cap.” NCT00272467

NCT03105375

Known as OME Omeprazole (OME) is the most frequently used proton pump inhibitor.” NCT01470690
Known as Omeprazole (Prilosec) Omeprazole (Prilosec)NCT02039869
Known as omeprazole-magnesium “Prilosec OTC (omeprazole-magnesium 20.6 mg) tablet to be taken with a glass of water prior to breakfast” NCT00903448
Known as OMP “VECAM is a combination of omeprazole (OMP) and SA.” PMID 22372795 Feb 2012
1

“Oral Omeprazole (OMP)” NCT02433457

Known as Prilosec “This study is designed to evaluate the potential for an effect of Ritonavir (Norvir®) or omeprazole (Prilosec®) on the pharmacokinetics of samatasvir and to assess the safety...” NCT01813552
7

Prilosec (omeprazole) 40 mg delayed-release capsule is opaque, hard gelatin, apricot, and amethyst colored capsules, coded 743 on cap and PRILOSEC 40 on the body for oral...” NCT02453022

“This study will attempt to determine the effectiveness of Omeprazole (Prilosec) in the treatment of patients with Zollinger-Ellison Syndrome.” NCT00001191

“complete a 14-day course of omeprazole (Prilosec®), and then complete a follow-up blood and stool sample.” NCT02844621

“one EC omeprazole (Prilosec®) 40 mg capsule” NCT01557335

PrilosecNCT02794844

NCT04766996

NCT02504554

Known as Prilosec (Omeprazole) Prilosec (Omeprazole)NCT02153177
Known as Prilosec OTC Prilosec OTC (omeprazole-magnesium 20.6 mg) tablet to be taken with a glass of water prior to breakfast” NCT00903448
Known as Zegerid ClinicalTrials.gov intervention name — accepted as the source's own label NCT01129778
Action Inhibit “the oral gastric acid antisecretory drug, Omeprazole, which functions as a H+ - K+ ATPase inhibitor.” NCT00001191
Modality Other / unclassified “Omeprazole is a proton pump inhibitor” PMID 32594305 Oct 2020
Route Oral oral Omeprazole” NCT00001191
Target CYP2C19 CYP2C19 inhibition by omeprazole” NCT01269333