Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Jun 26, 2026, 5:48 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 56 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Cytochrome P450 Interaction Clear all
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, 5:48 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 Jun 26, 2026, 5:48 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Crossover Drug-Drug Interaction Study to Determine Effects of Cytochrome P450 3A on Exposure to Mifepristone and Its Metabolites

NCT03258372
View directory record Official record
Conditions
Healthy
Interventions
Mifepristone
Drug
Lead sponsor
Corcept Therapeutics
Industry
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Feb 22, 2018 · Synced Jun 26, 2026, 5:48 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Interactions Between Cannabinoids and Cytochrome P450-Metabolized Drugs

NCT04201197
View directory record Official record
Conditions
Drug-Interactions
Interventions
Inje cocktail, THC Cannabis extract, THC/CBD Cannabis Extract
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 50 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 23, 2023 · Synced Jun 26, 2026, 5:48 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 Jun 26, 2026, 5:48 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Evaluate the Effect of Repotrectinib on the Drug Levels of Transporter and CYP P450 Probe Substrates in Healthy Adult Participants

NCT07223671
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Repotrectinib, Metformin, Digoxin, Rosuvastatin, Bupropion, Flurbiprofen, Omeprazole
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Daytona Beach, Florida
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Jun 26, 2026, 5:48 AM EDT
Completed Phase 1 Interventional

Open Label, Drug-Drug Interaction (DDI) Study of Dupilumab (REGN668/SAR231893) in Patients With Moderate to Severe Atopic Dermatitis (AD)

NCT02647086
View directory record Official record
Conditions
Atopic Dermatitis
Interventions
Dupilumab, Midazolam, Omeprazole, Warfarin, Caffeine, Metoprolol
Drug
Lead sponsor
Regeneron Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
5
States / cities
Little Rock, Arkansas • Centennial, Colorado • Minneapolis, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 21, 2016 · Synced Jun 26, 2026, 5:48 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Pharmacokinetic Interactions With Prednisolone in Healthy Volunteers and HIV-infected Patients Receiving Single-Dose Prednisone

NCT00072644
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 50 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jun 26, 2026, 5:48 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Garlic Supplements on Drug Metabolism

NCT00122889
View directory record Official record
Conditions
Healthy
Interventions
Garlic powder with high allicin content, Garlic powder with low allicin content, Garlic oil, Aged garlic
Drug
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years to 45 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 31, 2009 · Synced Jun 26, 2026, 5:48 AM EDT
Completed Early Phase 1 Interventional

Study to Investigate the Effect of Rocatinlimab (AMG 451) on the Pharmacokinetics of Multiple Cytochrome P450 (CYP450) Substrates in Participants With Moderate to Severe Atopic Dermatitis

NCT05891119
View directory record Official record
Conditions
Atopic Dermatitis
Interventions
Caffeine, Metoprolol, Midazolam, Warfarin, Vitamin K, Omeprazole, Rocatinlimab
Dietary Supplement · Drug
Lead sponsor
Amgen
Industry
Eligibility
18 Years to 65 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
7
States / cities
North Hollywood, California • DeLand, Florida • Hialeah, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Dec 22, 2025 · Synced Jun 26, 2026, 5:48 AM EDT
Completed Phase 1 Interventional

A Study Evaluating Potential Disease-Mediated Drug-Drug Interaction in Adult Participants With Active Eosinophilic Esophagitis Receiving Cendakimab

NCT05175352
View directory record Official record
Conditions
Eosinophilic Esophagitis
Interventions
Cendakimab, CYP substrates
Drug
Lead sponsor
Celgene
Industry
Eligibility
18 Years to 75 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
12
States / cities
Tucson, Arizona • Los Angeles, California • San Diego, California + 9 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2024 · Synced Jun 26, 2026, 5:48 AM 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, 5:48 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Drug-Food Interaction Study Between Colchicine and Grapefruit Juice

NCT00984009
View directory record Official record
Conditions
Pharmacokinetics
Interventions
Colchicine, Grapefruit Juice
Drug · Other
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 Nov 20, 2011 · Synced Jun 26, 2026, 5:48 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Drug Interaction Potential of Napabucasin in Healthy Volunteers

NCT03411122
View directory record Official record
Conditions
Drug-drug Interactions
Interventions
napabucasin, cytochrome P450 (CYP450) probe drugs or BCRP transporter substrate
Drug
Lead sponsor
Sumitomo Pharma America, Inc.
Industry
Eligibility
18 Years to 45 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
DeLand, Florida
Source: ClinicalTrials.gov public record
Updated Nov 13, 2023 · Synced Jun 26, 2026, 5:48 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug-drug Interaction Study of Ozanimod With Inhibitor or Inducer of CYP2C8 and/or CYP3A

NCT03624959
View directory record Official record
Conditions
Healthy Volunteer
Interventions
Ozanimod, Gemfibrozil, Itraconazole, Rifampin
Drug
Lead sponsor
Celgene
Industry
Eligibility
18 Years to 55 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated May 29, 2019 · Synced Jun 26, 2026, 5:48 AM EDT
Completed Phase 1 Interventional

Drug-drug Interaction Trial With Tralokinumab in Moderate to Severe Atopic Dermatitis - ECZTRA 4

NCT03556592
View directory record Official record
Conditions
Atopic Dermatitis
Interventions
Tralokinumab, Caffeine, Warfarin, Omeprazole, Metoprolol, Midazolam Hydrochloride
Drug
Lead sponsor
LEO Pharma
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
9
States / cities
Little Rock, Arkansas • Rogers, Arkansas • San Diego, California + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 23, 2025 · Synced Jun 26, 2026, 5:48 AM 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, 5:48 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug Drug Interaction Study With Lu AG06466 in Young Healthy Men

NCT04713254
View directory record Official record
Conditions
Healthy
Interventions
Lu AG06466, Midazolam, Metoprolol, Bupropion
Drug · Other
Lead sponsor
H. Lundbeck A/S
Industry
Eligibility
18 Years to 45 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Apr 19, 2021 · Synced Jun 26, 2026, 5:48 AM 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, 5:48 AM EDT
Completed Phase 1 Interventional

Pharmacokinetic Study to Evaluate the Effect of a Single Dose of Guselkumab (CNTO 1959) on CYP 450 Enzyme Activities After Subcutaneous Administration in Participants With Psoriasis

NCT02397382
View directory record Official record
Conditions
Psoriasis
Interventions
Guselkumab, Midazolam, Warfarin, Omeprazole, Dextromethorphan, Caffeine
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
8
States / cities
Anniston, Alabama • North Hollywood, California • Orlando, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 19, 2017 · Synced Jun 26, 2026, 5:48 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug-Drug Interaction Study of Bomedemstat and Carbamazepine in Healthy Adult Participants (MK-3543-020)

NCT06596668
View directory record Official record
Conditions
Healthy
Interventions
bomedemstat, carbamazepine
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years to 55 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 17, 2025 · Synced Jun 26, 2026, 5:48 AM EDT
Completed Phase 2 Interventional

The Effect of Thyroid Hormone on Drug Elimination in Cancer Patients

NCT00080574
View directory record Official record
Conditions
Thyroid Cancer
Interventions
Skin Biopsy
Procedure
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jun 26, 2026, 5:48 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 Jun 26, 2026, 5:48 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 Jun 26, 2026, 5:48 AM EDT