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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Cytochrome P-450 Clear all
Recruiting Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Effect of Itraconazole and Rifampin on the Drug Levels of AR-LDD (BMS-986365) in Healthy Adult Male Participants

NCT07242781
View directory record Official record
Conditions
Healthy Volunteers
Interventions
BMS-986365, Itraconazole, Rifampin
Drug
Lead sponsor
Celgene
Industry
Eligibility
18 Years to 60 Years · Male only
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 23, 2025 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug Interaction Study With Atazanavir Administered With and Without Ritonavir and a Cytochrome P450 Substrate Rosiglitazone

NCT00362726
View directory record Official record
Conditions
HIV Infections
Interventions
Rosiglitazone maleate, Atazanavir Sulphate, Atazanavir Sulphate + Rosiglitazone maleate, Atazanavir Sulphate + Ritonavir, Atazanavir Sulphate + Ritonavir + Rosiglitazone maleate
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 50 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Hamilton, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 7, 2011 · Synced Jun 26, 2026, 7:45 PM EDT
Not yet recruiting Early Phase 1 Interventional

Immune Checkpoint Inhibitor (ICI)-Drug-Drug Interaction (DDI) Study

NCT07389525
View directory record Official record
Conditions
Gastrointestinal Neoplasms, Genitourinary Cancer, Thoracic Cancer, Sarcoma, Melanoma
Interventions
ICI Therapy
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Not applicable Interventional Results available

Pharmacogenetic Testing Among Home Health Patients

NCT02378220
View directory record Official record
Conditions
Adverse Drug Events, Adverse Drug Reactions, Drug Interaction Potentiation, Drug Metabolism, Poor, CYP2D6-RELATED, Drug Metabolism, Poor, CYP2C19-RELATED, Cytochrome P450 Enzyme Deficiency, Cytochrome P450 CYP2D6 Enzyme Deficiency, Cytochrome P450 CYP2C9 Enzyme Deficiency, Cytochrome P450 CYP2C19 Enzyme Deficiency, Cytochrome P450 CYP3A Enzyme Deficiency, Poor Metabolizer Due to Cytochrome P450 CYP2C9 Variant, Poor Metabolizer Due to Cytochrome p450 CYP2C19 Variant, Poor Metabolizer Due to Cytochrome P450 CYP2D6 Variant
Interventions
Pharmacogenetic testing
Genetic
Lead sponsor
Genelex Corporation
Industry
Eligibility
50 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Searcy, Arkansas
Source: ClinicalTrials.gov public record
Updated Sep 19, 2019 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Open-Label, Multiple-Dose, Non-Randomized Study to Assess Drug-Drug Interactions of Proellex® in Female Subjects

NCT00741468
View directory record Official record
Conditions
Drug Interactions
Interventions
Proellex, CYP1A2 probe, CYP2C9 probe, CYP2C19 probe, CYP2D6 probe, CYP3A4 probe
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 48 Years · Female only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 21, 2014 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 4 Interventional

Influence of the MDR1 Genotype on Blood Levels of Indinavir and Saquinavir in Healthy Volunteers

NCT00050180
View directory record Official record
Conditions
Healthy, HIV Infections
Interventions
Midazolam, Indinavir, Saquinavir
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 60 Years
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jun 26, 2026, 7:45 PM EDT
Terminated Phase 1 Interventional

A Study to Assess the Effects of Itraconazole, Rifampicin, and Omeprazole on Pharmacokinetics of Adavosertib

NCT04959266
View directory record Official record
Conditions
Advanced Solid Tumours
Interventions
Adavosertib, Itraconazole, Rifampicin, Omeprazole
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
3
States / cities
Portland, Oregon • Austin, Texas • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Sep 15, 2022 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug Interaction Study of Apixaban With Cyclosporine and Tacrolimus

NCT03083782
View directory record Official record
Conditions
Venous Thromboembolism, Pharmacokinetics, Healthy
Interventions
Apixaban alone, Cyclosporine, Tacrolimus, Apixaban
Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 10, 2017 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study in Healthy Subjects to Determine the Effect of an Inhibitor on Exposure to Relacorilant and Its Metabolites

NCT03512548
View directory record Official record
Conditions
Healthy
Interventions
Relacorilant 350mg, Itraconazole, Relacorilant 300mg
Drug
Lead sponsor
Corcept Therapeutics
Industry
Eligibility
18 Years to 65 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 23, 2020 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Assess the Drug Interaction Between MYK-224 and Itraconazole and Verapamil in Healthy Participants

NCT05304533
View directory record Official record
Conditions
Healthy Participants
Interventions
MYK-224, Itraconazole, Verapamil
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 55 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 12, 2023 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 1 Interventional

Endoxifen in Adults With Hormone Receptor Positive Solid Tumors

NCT01273168
View directory record Official record
Conditions
Hormone Receptor-Positive Breast, Gynecologic, Desmoid, Hormone Receptor-Positive Neoplasms
Interventions
Z-Endoxifen
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 120 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 22, 2025 · Synced Jun 26, 2026, 7:45 PM EDT
Completed No phase listed Observational

Cytochrome P450 Epoxygenase Pathway Regulation of Macrophage Function

NCT02743468
View directory record Official record
Conditions
Polymorphism, Lung Inflammation
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study Evaluating the Effects of Food, Cytochrome P450 Inhibition and Induction on the Pharmacokinetics of CC-122

NCT03340662
View directory record Official record
Conditions
Healthy Volunteer
Interventions
CC-122, Itraconazole, Fluvoxamine, Rifampin
Drug
Lead sponsor
Celgene
Industry
Eligibility
18 Years to 55 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jan 15, 2019 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 1 Interventional

A Study To Test The Effect Of GW786034 (Pazopanib) On P450 Enzymes

NCT00401583
View directory record Official record
Conditions
Carcinoma, Renal Cell
Interventions
GW786034 (pazopanib), Probe drugs
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
21 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Nov 12, 2017 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Assessment of Drug-Drug Interactions of Androxal With Cytochrome P450 Isoenyzmes in Healthy Males

NCT01991327
View directory record Official record
Conditions
Drug-drug Interaction
Interventions
Androxal, Placebo
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 60 Years · Male only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 10, 2014 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Assess the Influence of Cenobamate on the PK of Cytochrome P450 (CYP) Probe Drugs As a Means of Predicting Drug-drug Interactions

NCT03234699
View directory record Official record
Conditions
Healthy
Interventions
Cenobamate, midazolam, Warfarin Pill, Omeprazole Pill, Bupropion Pill
Drug
Lead sponsor
SK Life Science, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Jun 26, 2026, 7:45 PM EDT
Completed No phase listed Observational

Genotype Information and Functional Testing Study

NCT00992420
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Not listed
Lead sponsor
Scripps Health
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Nov 22, 2022 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Determine the Effects of Gene Differences and Voriconazole on Enzyme CYP2B6 Activity in the Liver in Healthy Volunteers

NCT01104376
View directory record Official record
Conditions
Efavirenz, Metabolism and Pharmacokinetics Changes
Interventions
Efavirenz, voriconazole
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 55 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Dec 16, 2014 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 1 Interventional

A Phase I Study of Continuous Intravenous Infusion of PSC 833 and Vinblastine in Patients With Metastatic Renal Cancer

NCT00001570
View directory record Official record
Conditions
Kidney Neoplasms, Neoplasm Metastasis
Interventions
PSC 833, vinblastine
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Not listed
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Evaluate the Effects of Cytochrome P450 (CYP) 3A4 Inducer Carbamazepine on Tavapadon Pharmacokinetics in Healthy Adult Participants

NCT05581823
View directory record Official record
Conditions
Parkinson Disease
Interventions
Tavapadon, Carbamazepine
Drug
Lead sponsor
Cerevel Therapeutics, LLC
Industry
Eligibility
18 Years to 55 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 19, 2023 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Effects of Kava on the Body's Elimination of Caffeine and Dextromethorphan

NCT00009542
View directory record Official record
Conditions
Healthy
Interventions
kava (Piper methysticum)
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Drug - Drug Interaction Study Between Quinine Sulfate and Theophylline

NCT00779259
View directory record Official record
Conditions
Pharmacokinetics
Interventions
Theophylline 300mg, Quinine 648 mg, Theophylline 300 mg
Drug
Lead sponsor
Mutual Pharmaceutical Company, Inc.
Industry
Eligibility
18 Years to 45 Years · Male only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Oct 27, 2009 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetic Interaction Study of Efavirenz and American Ginseng in Healthy Volunteers

NCT01136928
View directory record Official record
Conditions
Healthy Volunteers
Interventions
American ginseng
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older · Male only
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 14, 2018 · Synced Jun 26, 2026, 7:45 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study Evaluating the Pharmacokinetics of Venlafaxine Extended-Release (ER) and Desvenlafaxine Succinate Sustained-Release (DVS SR) 50 mg in Healthy Subjects

NCT00727064
View directory record Official record
Conditions
Healthy
Interventions
Desvenlafaxine Succinate Sustained-Release (DVS SR), Venlafaxine Extended Release (VEN ER)
Drug
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Wichita, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 1, 2010 · Synced Jun 26, 2026, 7:45 PM EDT