Drug ID:Drug32
Drug Name:Omeprazole
CID:4594
DrugBank ID:DB00338
Modality:Small Molecule
Groups:approved|investigational
US Approved:YES
Other Approved:YES
Identifier: NCT01287195, , NCT02760615, , NCT03358706
Molecular Formula:C17H19N3O3S
Molecular Weight:345.4 g/mol
Isomeric SMILES:CC1=CN=C(C(=C1OC)C)CS(=O)C2=NC3=C(N2)C=C(C=C3)OC
Synonyms:omeprazole; 73590-58-6; Losec; Antra; Audazol; Omeprazon; Mopral; Omapren; Parizac; Ceprandal
Phase 0: 10
Phase 1: 221
Phase 2: 40
Phase 3: 69
Phase 4: 104
Description:A highly effective inhibitor of gastric acid secretion used in the therapy of stomach ulcers and Zollinger-Ellison syndrome. Omeprazole belongs to a class of antisecretory compounds, the substituted benzimidazoles, that suppress gastric acid secretion by specific inhibition of the H+/K+ ATPase enzyme system at the secretory surface of the gastric parietal cell.

Molecular Structure

2D Molecular Structure

Knowledge Graph

dtIDCIDCompound NameGene IDGene NameSpeciesPubMed IDsAction
dt296 4594 Omeprazole 495 ATP4A Homo sapiens (human) Inhibitor
dt297 4594 Omeprazole 495 ATP4A Homo sapiens (human) None
dt298 4594 Omeprazole 699 BUB1 Homo sapiens (human) Activator
dt299 4594 Omeprazole 5243 ABCB1 Homo sapiens (human) None
dt300 4594 Omeprazole 3074 HEXB Homo sapiens (human) None
dt301 4594 Omeprazole 7124 TNF Homo sapiens (human) None
dt302 4594 Omeprazole 1181 CLCN2 Homo sapiens (human) None
dt303 4594 Omeprazole 495 ATP4A Homo sapiens (human) Inhibition
dt304 4594 Omeprazole 496 ATP4B Homo sapiens (human) 37713619 Modulator

  • No data available

Phase Distribution
Phase Description
  • Phase 0: Exploratory trials to assess drug behavior in humans
  • Phase 1: Safety trials to determine safe dosage range
  • Phase 2: Efficacy trials to evaluate therapeutic effects
  • Phase 3: Large-scale trials to confirm efficacy and safety
  • Phase 4: Post-marketing surveillance for long-term safety and efficacy

Trial IDTitlePhaseStatusSponsorIndicationsInterventions
NCT06917963 Study of Treatment With Intensified Omeprazole Treatment to Prevent High Output Stoma 1 NA RECRUITING Medical University of Gdansk Stoma - Ileostomy|High Output Stoma|Colon Cancer|… DRUG: Intensified intravenous omeprazole therapy … Details
NCT03358706 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 PHASE1 TERMINATED Janssen Research & Development, LLC Crohn Disease|Ulcerative Colitis DRUG: Ustekinumab IV Infusion|DRUG: Ustekinumab S… Details
NCT02760615 Phase 4, Vedolizumab-4002 Post-marketing, Disease-Drug-Drug Interaction Study PHASE4 WITHDRAWN Takeda Colitis, Ulcerative|Crohn Disease DRUG: Caffeine|DRUG: Losartan|DRUG: Omeprazole|DR… Details
NCT02272868 Fecal Microbial Transplant in Pediatric Crohn's Disease PHASE1|PHASE2 TERMINATED Seattle Children's Hospital Crohn's Disease BIOLOGICAL: Fecal Microbial transplant|DRUG: Norm… Details
NCT06719622 Evaluation of the Efficacy of Local Budesonide Treatment in Children with Crohn's Disease Located in the Esophagus And/or Stomach And/or Duodenum PHASE2|PHASE3 ENROLLING_BY_INVITATION Medical University of Warsaw Crohn Disease (CD) DRUG: budesonide|DRUG: omeprazole (proton pump in… Details
NCT01489943 A Study to Investigate the Effect of GSK1605786 on Hepatic Cytochrome P450, and BCRP and OATP1B1 Transport in Healthy Adult Subjects PHASE1 COMPLETED GlaxoSmithKline Crohn's Disease DRUG: GSK1605786 500 mg|DRUG: Midazolam 3 mg|DRUG… Details
NCT01287195 Oral OKT3 for the Treatment of Active Ulcerative Colitis PHASE1|PHASE2 COMPLETED Brigham and Women's Hospital Ulcerative Colitis DRUG: Oral OKT3|DRUG: Omeprazole Details
NCT00640809 Comparison of Small Bowel Lesions Associated With Celecoxib Versus Ibuprofen Plus Omeprazole PHASE4 COMPLETED Pfizer's Upjohn has merged with Mylan to form Viatris Inc. Bowel Diseases, Inflammatory DRUG: Celecoxib|OTHER: Placebo|DRUG: Ibuprofen pl… Details
ACTRN12615000936527 Relative Bioavailability and Effect of Food and Esomeprazole on the Pharmacokinetics of PRN1008 in Healthy Volunteers PHASE1 Not Recruiting Clinical Network Services Pty Ltd Rheumatoid Arthritis;Inflammatory Bowel Disease;S… This will be a single center, four-period, open-l… Details
NCT03269916 Fertility and Ovarian Reserve Function in the Patient With Inflammatory Bowel Disease NA UNKNOWN Sixth Affiliated Hospital, Sun Yat-sen University Fertility Disorders|Ovarian Reserve Function|Preg… OTHER: Anti Mueller hormone|OTHER: Estrogen|OTHER… Details
NCT06800326 Diagnostic Concordance of MR Enterography and Ultrasound for Treatment Response Assessment in Crohn's Disease (MANTRA) NULL RECRUITING University College, London Crohn Disease DIAGNOSTIC_TEST: Ultrasound|DIAGNOSTIC_TEST: MRE … Details

Disease IDDisease NameDefinitionCategoryRelated DrugsMechanism
No data available

Strategy IDTherapeutic StrategySynonymsRelated DrugsMechanism
No data available

Inhibition of Tryptophan Hydroxylases and Monoamine Oxidase-A by the Proton Pum…

PMID: 33324221
Year: 2020
Relationship Type: Treatment Score: 6.5

Serotonin (5-HT) is a hormone and neurotransmitter that modulates neural activity as well as a wide range of other physiological processes including …

Pharmacokinetics of omeprazole in rats with dextran sulfate sodium-induced ulce…

PMID: 32354532
Year: 2020
Relationship Type: Treatment Score: 6.5

Omeprazole is a commonly used drug in patients with ulcerative colitis (UC). This study investigated the pharmacokinetics of omeprazole in rats with …