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Showing 1–24 of 122 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Cytochrome P-450 Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Genetic Variability in CYP2D6 in U.S Active Duty Population

NCT02960568
View directory record Official record
Conditions
Pharmacologic Action
Interventions
Primaquine
Drug
Lead sponsor
Walter Reed Army Institute of Research (WRAIR)
Federal
Eligibility
18 Years to 60 Years
Enrollment
550 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 19, 2021 · Synced Sep 9, 2026, 6:14 AM 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 Sep 9, 2026, 6:14 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Effects of Sucralose on Drug Absorption and Metabolism (The SweetMeds Study)

NCT03407079
View directory record Official record
Conditions
Healthy Volunteers, Overweight
Interventions
Sucralose, Placebo
Other
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
Eligibility
18 Years to 60 Years · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 9, 2026, 6:14 AM 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 Sep 9, 2026, 6:14 AM EDT
Terminated 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
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jul 19, 2026 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 1 Interventional Results available

A Study of Ixekizumab in Participants With Plaque Psoriasis

NCT02993471
View directory record Official record
Conditions
Psoriasis
Interventions
Drug Cocktail, Ixekizumab
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
3
States / cities
Anaheim, California • DeLand, Florida • High Point, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 11, 2019 · Synced Sep 9, 2026, 6:14 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Biomarkers of CYP2D6 and CYP3A4 Variability in Pediatrics

NCT01118858
View directory record Official record
Conditions
Drug Metabolism Phenotype
Interventions
Not listed
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
7 Years to 15 Years
Enrollment
205 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
2
States / cities
Kansas City, Missouri • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 20, 2017 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Assess the Effect Tasimelteon on the Cytochrome P450 3A4 and 2C8 Enzymes in Healthy Subjects

NCT01402076
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Tasimelteon, Rosiglitazone, Midazolam
Drug
Lead sponsor
Vanda Pharmaceuticals
Industry
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Springfield, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 16, 2014 · Synced Sep 9, 2026, 6:14 AM EDT
Terminated No phase listed Observational

Pharmacogenetics as a Predictor of Toxicity in Pre-Menopausal Women Receiving Doxorubicin and Cyclophosphamide in Early Breast Cancer

NCT00352872
View directory record Official record
Conditions
Breast Cancer
Interventions
Not listed
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 1, 2018 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug-Drug Interaction Study of Pacritinib and CYP450,Transporter Substrates, and CYP450 3A4 in Healthy Male Subjects

NCT05657613
View directory record Official record
Conditions
Drug Interactions
Interventions
CYP450 Cocktail and Transporter Substrates with Pacritinib, Part 2 -Group A Bosentan 125 mg (CYP450 3A4 inducer) with Pacritinib, Part 2 Group B - Fluconazole (CYP450 3A4 inhibitor) with Pacritinib
Drug
Lead sponsor
CTI BioPharma
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Oct 16, 2024 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 1Phase 2 Interventional

Codeine in Sickle Cell Disease

NCT00174538
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Codeine (30 mg)
Drug
Lead sponsor
PriCara, Unit of Ortho-McNeil, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 29, 2011 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Resveratrol and Midazolam Metabolism

NCT01173640
View directory record Official record
Conditions
Healthy
Interventions
Midazolam, resveratrol (single dose), resveratrol (multiple dose)
Drug · Dietary Supplement
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 50 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 30, 2017 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Not applicable Interventional

Drug & Gene Interaction Risk Analysis With & Without Genetic Testing Among Patients Undergoing MTM

NCT02428660
View directory record Official record
Conditions
Cytochrome P450 CYP2D6 Enzyme Deficiency, Poor Metabolizer Due to Cytochrome P450 CYP2D6 Variant, Ultrarapid Metabolizer Due to Cytochrome P450 CYP2D6 Variant, Extensive Metabolizer Due to Cytochrome P450 CYP2D6 Variant, Cytochrome P450 CYP2C9 Enzyme Deficiency, Cytochrome P450 CYP2C19 Enzyme Deficiency, Drug Metabolism, Poor, CYP2D6-RELATED, Drug Metabolism, Poor, CYP2C19-RELATED, CYP2D6 Polymorphism
Interventions
Pharmacogenetic testing, Software-based drug & gene interaction risk analysis, MTM
Genetic · Other
Lead sponsor
Genelex Corporation
Industry
Eligibility
65 Years and older
Enrollment
341 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Feb 22, 2017 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study of the Effects of Posaconazole on Alectinib (RO5424802) Pharmacokinetics in Healthy Volunteers

NCT01984229
View directory record Official record
Conditions
Healthy Volunteer
Interventions
Alectinib, Posaconazole
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years to 55 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Oct 10, 2016 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Drug-Drug Interaction Study Between Colchicine and Diltiazem ER

NCT00983372
View directory record Official record
Conditions
Healthy; Adult; Volunteer; Colchicine; Pharmacokinetics; Diltiazem; Cytochrome p450 3A4; P-glycoprotein
Interventions
Colchicine, Diltiazem ER
Drug
Lead sponsor
Mutual Pharmaceutical Company, Inc.
Industry
Eligibility
18 Years to 45 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Oct 14, 2009 · Synced Sep 9, 2026, 6:14 AM EDT
Terminated No phase listed Observational

Optimizing Antiretroviral Therapy in HIV-Infected Children and Adolescents

NCT00207948
View directory record Official record
Conditions
HIV Infections
Interventions
Dose adjustment of Kaletra
Drug
Lead sponsor
Children's National Research Institute
Other
Eligibility
4 Years to 21 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Aug 4, 2015 · Synced Sep 9, 2026, 6:14 AM 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 Sep 9, 2026, 6:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Omnitram Pharmacokinetic and Analgesic Study Following CY2D6 Inhibition With Paroxetine In Healthy Volunteers

NCT03312777
View directory record Official record
Conditions
Pain
Interventions
Omnitram, Tramadol, Placebo
Drug
Lead sponsor
Syntrix Biosystems, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Dec 27, 2017 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 4 Interventional Results available

Pharmacokinetics of Sublingual Versus Oral Tacrolimus in Patients Awaiting Kidney Transplantation

NCT00629122
View directory record Official record
Conditions
Kidney Failure, Chronic
Interventions
Tacrolimus (Arm B), Clotrimazole Troche, Tacrolimus (Arm A), Nystatin Suspension
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 11, 2019 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Investigate Safety, Tolerability, and Pharmacokinetics (PK) of VH4524184 and the Potential for Changes in Cytochrome P450 3A (CYP3A) Activity

NCT05631704
View directory record Official record
Conditions
HIV Infections
Interventions
VH4524184, Midazolam, Placebo
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years to 50 Years
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 28, 2025 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Study Evaluating the Pharmacokinetics of Venlafaxine ER and Desvenlafaxine SR in Healthy Subjects

NCT00329186
View directory record Official record
Conditions
Healthy
Interventions
desvenlafaxine SR, venlafaxine 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
2006 – 2007
U.S. locations
1
States / cities
Wichita, Kansas
Source: ClinicalTrials.gov public record
Updated Feb 7, 2013 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 1 Interventional

Erlotinib and Sirolimus in Treating Patients With Recurrent Malignant Glioma

NCT00509431
View directory record Official record
Conditions
Brain and Central Nervous System Tumors
Interventions
Erlotinib + Sirolimus
Drug
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 30, 2020 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Fixed-Sequence, Two-Period, Open-Label Drug-Drug Interaction Study to Assess the Effect of an Inhibitor of Cytochrome P450 Isoenzyme 3A4 and Permeability Glycoprotein 1 on the Pharmacokinetics of TD-1211

NCT01568411
View directory record Official record
Conditions
Healthy
Interventions
TD-1211, TD-1211+ itraconazole
Drug
Lead sponsor
Glycyx Therapeutics
Industry
Eligibility
18 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Evaluate the Effect of Cytochrome P450 (CYP) 3A Inhibition and Induction on the Pharmacokinetics of CC-220 in Healthy Subjects

NCT02820935
View directory record Official record
Conditions
Pharmacokinetics
Interventions
CC-220, Rifampin, Itraconazole
Drug
Lead sponsor
Celgene Corporation
Industry
Eligibility
18 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Oct 17, 2016 · Synced Sep 9, 2026, 6:14 AM EDT