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Showing 1–24 of 1,108 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Drug-Interactions Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

A Drug Interaction Study of the Effects of PPI-668 on the Pharmacokinetics of Midazolam and Omeprazole

NCT01786382
View directory record Official record
Conditions
Pharmacokinetic Assessments in Healthy Volunteers
Interventions
PPI-668, Midazolam, Omeprazole, Telaprevir
Drug
Lead sponsor
Presidio Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
West Bend, Wisconsin
Source: ClinicalTrials.gov public record
Updated Mar 25, 2013 · Synced Sep 2, 2026, 3:58 PM EDT
Completed No phase listed Observational

Patient Perspectives and Doctor Visits

NCT01888913
View directory record Official record
Conditions
Body Weight
Interventions
Not listed
Lead sponsor
National Human Genome Research Institute (NHGRI)
NIH
Eligibility
18 Years to 50 Years · Female only
Enrollment
1,464 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 19, 2024 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Assess Drug-Drug Interaction Between Itraconazole or Gemfibrozil and JNJ-56021927

NCT02230033
View directory record Official record
Conditions
Healthy
Interventions
JNJ-56021927, Itraconazole, Gemfibrozil
Drug
Lead sponsor
Aragon Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 19, 2016 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Fruquintinib CYP3A Inhibitor and Inducer Study

NCT04557397
View directory record Official record
Conditions
Drug Drug Interaction
Interventions
Fruquintinib, Itraconazole, Rifampin
Drug
Lead sponsor
Hutchison Medipharma Limited
Industry
Eligibility
18 Years to 55 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Cypress, California
Source: ClinicalTrials.gov public record
Updated Jun 17, 2021 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Drug-Drug Interaction Study of Ketoconazole, Rifampicin and Ritonavir-Boosted Atazanavir With Single-Dose RO5093151 in Healthy Volunteers

NCT01591850
View directory record Official record
Conditions
Healthy Volunteer
Interventions
RO5093151, atazanavir, ketoconazole, rifampicin, ritonavir
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years to 65 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Merritt Island, Florida
Source: ClinicalTrials.gov public record
Updated Nov 1, 2016 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Trial to Test the Effects of Other Drugs on SEP-380135 in Healthy Men and Women

NCT07305779
View directory record Official record
Conditions
Schizophrenia
Interventions
SEP-380135, Quinidine Gluconate
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 14, 2026 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug Interaction Study of ALXN2050 With Fluconazole and Rifampin in Healthy Adult Participants

NCT04933682
View directory record Official record
Conditions
Healthy
Interventions
ALXN2050, Fluconazole, Rifampin
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Sep 2, 2026, 3:58 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Training Induced Muscle-Adipose EV Communication

NCT07106450
View directory record Official record
Conditions
Prediabetes
Interventions
Acute Resistance Exercise
Behavioral
Lead sponsor
Yuan Wen
Other
Eligibility
30 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Aug 9, 2026 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug-drug Interaction Trial of AP31969 and Carbamazepine or Itraconazole

NCT07449390
View directory record Official record
Conditions
Healthy Participants
Interventions
AP31969, Carbamazepine, Itraconazole
Drug
Lead sponsor
Acesion Pharma
Industry
Eligibility
18 Years to 55 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

N-acetylcysteine and NMDA Antagonist Interactions

NCT00611897
View directory record Official record
Conditions
Cognitive Dysfunction
Interventions
N-acetylcysteine and ketamine, placebo and ketamine
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 45 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2011
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 7, 2015 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Drug-Drug Interaction Study Between Danoprevir/Low-Dose Ritonavir and Cyclosporine in Healthy Volunteers

NCT01514968
View directory record Official record
Conditions
Healthy Volunteer
Interventions
cyclosporine, danoprevir, ritonavir
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years to 45 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 1, 2016 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Infant- Toddler Climate of Healthy Interactions for Learning and Development (I-T CHILD)

NCT05132374
View directory record Official record
Conditions
Child Development, Child Behavior, Social Skills, Infant Development
Interventions
I-T CHILD
Other
Lead sponsor
Yale University
Other
Eligibility
Not listed
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 7, 2023 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Leader Partner Interactions

NCT02048774
View directory record Official record
Conditions
Socioeconomic Status, Food Intake
Interventions
Designation of Social Positioning
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years to 25 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jan 25, 2016 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Phase 1 Interventional

The Safety and Effectiveness of Clarithromycin Plus Zidovudine or Dideoxyinosine in the Treatment of Mycobacterium Avium Complex (MAC) Infections in Children With AIDS

NCT00000971
View directory record Official record
Conditions
Mycobacterium Avium-intracellulare Infection, HIV Infections
Interventions
Clarithromycin, Zidovudine, Didanosine
Drug
Lead sponsor
Abbott
Industry
Eligibility
3 Months to 18 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
2
States / cities
Los Angeles, California • Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 3, 2008 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Combined Alcohol and Nitrous Oxide Intake - 15

NCT00000263
View directory record Official record
Conditions
Opioid-Related Disorders, Substance-Related Disorders
Interventions
30% Nitrous oxide, 0.25 g/Kg ethanol, 0.5 g/KG ethanol, 0 g/Kg ethanol
Drug · Other
Lead sponsor
University of Chicago
Other
Eligibility
Not listed
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1997 – 1998
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 26, 2015 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Drug Interaction Study of 31001074 and Paroxetine in Healthy Volunteers

NCT01159821
View directory record Official record
Conditions
Healthy
Interventions
31001074/paroxetine
Drug
Lead sponsor
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Industry
Eligibility
18 Years to 55 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 7, 2014 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Cannabidiol and Oral Contraceptive Pills: Exploring a Drug-Drug Interaction

NCT04396730
View directory record Official record
Conditions
Contraception
Interventions
Cannabidiol Oil, Placebo, Combined oral contraceptive pill
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 10, 2023 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Phase 1 PK Interaction Study Between VX-509 and Prednisone or Methylprednisolone in Healthy Male Subjects

NCT01886209
View directory record Official record
Conditions
Drug Interactions
Interventions
Prednisone, VX-509, Methylprednisolone
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Aug 13, 2013 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Assess Drug-Drug Interaction Between ABBV-903 and Midazolam in Adult Healthy Volunteers

NCT05895266
View directory record Official record
Conditions
Healthy Volunteer
Interventions
ABBV-903, Midazolam
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Grayslake, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 8, 2023 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug-Drug Interaction Study Evaluating Effects of ASP015K on Rosuvastatin

NCT01959399
View directory record Official record
Conditions
Healthy Subjects, Pharmacokinetics of ASP015K
Interventions
ASP015K, Rosuvastatin
Drug
Lead sponsor
Astellas Pharma Global Development, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Glendale, California
Source: ClinicalTrials.gov public record
Updated Oct 9, 2013 · Synced Sep 2, 2026, 3:58 PM 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 Sep 2, 2026, 3:58 PM EDT
Completed Phase 1 Interventional

Drug-Drug Interaction Study Between Telaprevir and Buprenorphine

NCT01275599
View directory record Official record
Conditions
Hepatitis C, Opioid-Related Disorders
Interventions
telaprevir, buprenorphine/naloxone
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 64 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2011
U.S. locations
2
States / cities
Overland Park, Kansas • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 7, 2011 · Synced Sep 2, 2026, 3:58 PM EDT
Terminated Phase 1 Interventional

Drug-Drug Interaction and Safety of AZD4041 Study (Part 1) and Efficacy, Safety, Pharmacokinetics and Pharmacodynamics of AZD4041 Study in Opioid Use Disorder (Part 2).

NCT06406400
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
AZD4041, Itraconazole, Buprenorphine, Buprenorphine / Naloxone, Hydromorphone, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 25, 2025 · Synced Sep 2, 2026, 3:58 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Drug-Drug Interaction Between Enlicitide Decanoate (MK-0616) and Alendronate in Healthy Adult Participants (MK-0616-027)

NCT06772792
View directory record Official record
Conditions
Healthy
Interventions
Alendronate, Enlicitide Decanoate
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
19 Years to 55 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Feb 17, 2025 · Synced Sep 2, 2026, 3:58 PM EDT