A Drug-Drug Interaction Study in Healthy Volunteers of the Effects of Tucatinib
Public ClinicalTrials.gov record NCT03723395. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Phase 1, Open-Label, Fixed-sequence, 5-part, Drug-drug Interaction Study of Tucatinib to Evaluate the Effects of CYP3A4 and CYP2C8 Inhibition and Induction on the Pharmacokinetics of Tucatinib and to Evaluate the Effects of Tucatinib on the Pharmacokinetics of Substrates of CYP3A4, CYP2C8, CYP2C9, and P-glycoprotein in Healthy Male and Female Subjects
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study is being done to look at how tucatinib could affect the way other drugs work. This study will look at healthy volunteers and how tucatinib affects their liver enzymes. Liver enzymes can change how drugs work in the body. There are 5 parts to this study. Parts A and C are looking at how the body breaks down tucatinib when there are lower levels of certain liver enzymes. Part B is looking at how the body breaks down tucatinib when there are high levels of certain liver and stomach enzymes. Parts D and E are looking at how tucatinib could change the levels of some liver and stomach enzymes in the body. This will help us know more about how tucatinib should be given to patients.
Study identification
- NCT ID
- NCT03723395
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 116 participants
Conditions and interventions
Conditions
Interventions
- tucatinib Drug
- itraconazole Drug
- rifampin Drug
- gemfibrozil Drug
- repaglinide Drug
- tolbutamide Drug
- midazolam Drug
- digoxin Drug
Drug
Eligibility (public fields only)
- Age range
- 18 Years to 65 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Sep 16, 2018
- Primary completion
- Dec 20, 2018
- Completion
- Dec 27, 2018
- Last update posted
- Dec 17, 2019
2018
United States locations
- U.S. sites
- 2
- U.S. states
- 2
- U.S. cities
- 2
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Covance Clinical Research Unit | Daytona Beach | Florida | 32117 | — |
| Covance Clinical Research Unit | Dallas | Texas | 75247 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03723395, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 17, 2019 · Synced Sep 8, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03723395 live on ClinicalTrials.gov.