| Not Yet Recruiting | A Study to Learn About the Effect of Study Medicine Called PF-08653944 on How Quickly the Stomach Empties Its NCT07508241 | Pfizer | Phase 1 |
| Completed | A Study to Investigate the Effect of Linaprazan Glurate on the Pharmacokinetics of Amoxicillin NCT07308041 | Cinclus Pharma Holding AB | Phase 1 |
| Enrolling By Invitation | Pharmacogenomic and Circulating Biomarkers for CDK4/6 Inhibitors NCT07100054 | London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's | — |
| Completed | Drug Interaction Study of ZYN002 Transdermal Gel and Probe Substrates NCT06930872 | Harmony Biosciences Management, Inc. | Phase 1 |
| Recruiting | Variation in Drug Interactions in People With HIV (PLWH) Aged 60 Years and Older. NCT06717581 | IRCCS Azienda Ospedaliero-Universitaria di Bologna | — |
| Terminated | Clinical Investigation Evaluating the Use of NETSmart Solution , Incorporated to NETSoins Software, in the Car NCT07027358 | Teranga Software | N/A |
| Completed | KF2022#4-trial: Effects of a Beta Blocker and NSAID on CYP Mediated Drug Metabolism NCT06566794 | Helsinki University Central Hospital | N/A |
| Completed | Evaluation of Vamorolone CYP3A4 Induction on Midazolam (a Sensitive CYP 3A4 Substrate) Pharmacokinetics NCT06689527 | Santhera Pharmaceuticals | Phase 1 |
| Completed | Drug Interactions in Hospital Information System. The PRoSIT System.. NCT04463576 | University Hospital, Bordeaux | — |
| Completed | An Evaluation of Healthcare Providers' Adherence to Pharmacovigilance Practices in an African Community NCT06428162 | Deraya University | — |
| Completed | Clinical Study to Evaluate Cannabidiol Liver Enzyme Elevations and Drug Interactions NCT06192589 | Food and Drug Administration (FDA) | Phase 1 |
| Unknown | QSPainRelief-STRAT NCT06244706 | Université Catholique de Louvain | N/A |
| Completed | Drug Interaction Study NCT06194864 | Emalex Biosciences Inc. | Phase 1 |
| Completed | A Study to Evaluate Drug-drug Interaction of ZX-7101A Tablets and Oseltamivir Phosphate Capsules in Healthy Ad NCT06057103 | Nanjing Zenshine Pharmaceuticals | Phase 1 |
| Unknown | A Big Data Approach to Predict NEOnatal Acute Kidney Injury in Newborns expoSed to nephroTOxic Drugs (NeoAKI S NCT05851222 | Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico | — |
| Completed | A Trial to Evaluate the Impact of C21 on the Exposure of 4 Substrates in Healthy Volunteers NCT05830799 | Vicore Pharma AB | Phase 1 |
| Recruiting | Pharmacogenomic Association Study in Indian Children With Acute Lymphoblastic Leukemia NCT05512169 | University of Geneva, Switzerland | — |
| Completed | Effect of Clarithromycin on PK of Linaprazan, Linaprazan on PK of Clarithromycin and Linaprazan on PK of Midaz NCT05633147 | Cinclus Pharma Holding AB | Phase 1 |
| Unknown | The Application and Validation of Triple Drug Response Surface Models on Density Spectral Array in Clinical An NCT05525351 | Taipei Veterans General Hospital, Taiwan | — |
| Completed | Drug-Drug Interaction Study to Evaluate the Effects of Ecopipam on the Pharmacokinetics of Multiple Substrates NCT05334108 | Emalex Biosciences Inc. | Phase 1 |
| Active Not Recruiting | Assessment of Drug-drug Interactions Between Feminizing Hormone Therapy and Emtricitabine/Tenofovir Alafenamid NCT04590417 | Thai Red Cross AIDS Research Centre | N/A |
| Active Not Recruiting | Assessment of Drug-drug Interactions Between Masculinizing Hormone Therapy and Antiretroviral Agents Concomita NCT04593680 | Thai Red Cross AIDS Research Centre | N/A |
| Completed | A Drug-drug Interaction Study to Evaluate the Effect of Rifampicin and Febuxostat on the Pharmacokinetics of M NCT05575297 | Seoul National University Hospital | Phase 1 |
| Unknown | Vmax Detection of Acupuncture-doxofylline as a Whole Probe of CYP1A in Vivo NCT05154942 | Shanghai Yueyang Integrated Medicine Hospital | N/A |
| Completed | A Drug-Drug Interaction Study Between ATI-2173 and Tenofovir Disoproxil Fumarate in Healthy Subjects NCT05137548 | Antios Therapeutics, Inc | Phase 1 |
| Completed | Drug-Drug Interaction Study to Evaluate the Effect of Inhibition of UGTs on the PK of Ecopipam and Its Active NCT04902105 | Emalex Biosciences Inc. | Phase 1 |
| Completed | Drug-drug Interaction Study of Lemborexant as an Adjunctive Treatment for Buprenorphine/Naloxone for Opioid Us NCT04818086 | Virginia Commonwealth University | Phase 1 / Phase 2 |
| Completed | Mirtazapine and Methamphetamine Drug-drug Interaction Study NCT04614584 | San Francisco Department of Public Health | Phase 1 |
| Completed | Cannabidiol and CES1 Interactions in Healthy Subjects NCT04603391 | University of Florida | Phase 4 |
| Completed | Fruquintinib Food Effect and Proton Pump Inhibitor Study NCT04645940 | Hutchison Medipharma Limited | Phase 1 |
| Completed | Impact of a Histamine H2 Receptor Antagonist (H2RA) on the Pharmacokinetics (PK) of Telaglenastat in Healthy S NCT04540965 | Calithera Biosciences, Inc | Phase 1 |
| Completed | Pharmacokinetic Interaction Between Nitazoxanide and Atazanavir/Ritonavir in Healthy Volunteers NCT05680792 | Obafemi Awolowo University | N/A |
| Withdrawn | Assessment of Mortality Rates in COVID-19 Infected Populations Treated With Repurposed Medications NCT04432350 | Tabula Rasa HealthCare | — |
| Unknown | Simulation of Risk of Adverse Drug Events Associated With the Initiation of Drugs Repurposed for the Treatment NCT04378881 | Tabula Rasa HealthCare | — |
| Completed | Simulation of Risk of Adverse Drug Events Associated With the Initiation of Drugs Repurposed for the Treatment NCT04339634 | Tabula Rasa HealthCare | — |
| Unknown | Evaluation of Drug Interactions of Saxagliptin With Sildenafil in Healthy Volunteers NCT04170790 | Ain Shams University | N/A |
| Suspended | Drug Interactions in Outpatients. NCT03943524 | University of Buenos Aires | N/A |
| Completed | The Drug Interaction Between Albuvirtide (ABT) and Rifampin（RIF） in Healthy Adult Subjects NCT04006353 | Shanghai Public Health Clinical Center | Phase 4 |
| Unknown | The Effect of ENZAlutamide on the Anti-Xa Levels of Patients Receiving DOACs NCT03920566 | Royal Marsden NHS Foundation Trust | — |
| Completed | Evaluation of a Drug Interactions Software to Limit Polypharmacy NCT03901820 | University of Buenos Aires | N/A |
| Completed | Effect of Atazanavir-ritonavir on the Pharmacokinetics and Toxicity of Lumefantrine NCT04531072 | Fogarty International Center of the National Institute of Health | Phase 4 |
| Completed | Risk Factors for Potential Drug -Drug Interactions: Study in Surgical Intensive Care Unit -Zagazig University NCT04078620 | Zagazig University | — |
| Completed | DDI Study Between Dorzagliatin and Rifampicin NCT04080609 | Hua Medicine Limited | Phase 1 |
| Completed | Effect of Dolutegravir on Etonogestrel Levels in HIV-infected Women in Botswana NCT03336346 | Columbia University | — |
| Completed | DDI Study to Investigate the Impact of Itraconazole on the Pharmacokinetics of Dorzagliatin NCT04080596 | Hua Medicine Limited | Phase 1 |
| Completed | Study to Evaluate the Effect of UGT Inhibition by Valproic Acid on the Pharmacokinetics of BIIB074 NCT03385525 | Biogen | Phase 1 |
| Completed | A Study to Examine the Effects of Entinostat on Midazolam in Healthy Adult Subjects NCT03187015 | Syndax Pharmaceuticals | Phase 1 |
| Completed | To Investigate PK and PD of CJ-12420, Clarithromycin, Amoxicillin After Multiple Dose Administration NCT03011996 | HK inno.N Corporation | Phase 1 |
| Completed | Drug-drug Interaction Study Using Rosuvastatin as a Breast Cancer Resistant Protein (Efflux Transporter), Orga NCT02671097 | Bayer | Phase 1 |
| Completed | Phase 1 Study to Evaluate the Safety and Tolerability of DS-1040b IV Infusion With Clopidogrel in Healthy Subj NCT02560688 | Daiichi Sankyo | Phase 1 |
| Completed | Evaluation of the Potential Pharmacokinetic Interactions Between Probe Drugs in the Geneva Phenotyping Cocktai NCT02391688 | Jules Desmeules | Phase 1 |
| Terminated | Pharmacokinetics and Pharmacodynamics of the Etonogestrel Contraceptive Implant When Co-administered With Efav NCT01980342 | Johns Hopkins University | Phase 4 |
| Completed | The Interaction of Herbs and Statins NCT05072405 | Chinese University of Hong Kong | Phase 4 |
| Completed | Influence of Pantoprazole on the Bioavailability of MMF and EC-MPS NCT01801280 | Klemens Budde | Phase 4 |
| Completed | Single Dose Study Of The Effect Of Cyclosporine On The Pharmacokinetics Of PF-04991532 In Health Volunteers NCT01370343 | Pfizer | Phase 1 |
| Completed | A Drug-Drug Interaction Study Between AZD1981 and Pravastatin to Study the Effect of AZD1981 on the Kinetics o NCT01254461 | AstraZeneca | Phase 1 |
| Completed | PPI and Clopidogrel Response NCT01170533 | University of Florida | Phase 1 |
| Completed | Loperamide Grapefruit Juice Interaction PK Trial NCT00806299 | Johnson & Johnson Consumer and Personal Products Worldwide | Phase 1 |