DHB Supplement Interaction Study
Public ClinicalTrials.gov record NCT02257879. 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 Pharmacokinetic Study to Assess and Compare the Drug Interaction Risk of the Grapefruit Juice and Dietary Supplements Known to Inhibit CYP3A Enzyme Activity
Study identification
- NCT ID
- NCT02257879
- Recruitment status
- Withdrawn
- Study type
- Observational
- Phase
- Not listed
- Lead sponsor
- National Institute of Environmental Health Sciences (NIEHS)
- NIH
- Enrollment
- Not listed
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 18 Years to 60 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
- Oct 2, 2014
- Primary completion
- Apr 19, 2020
- Completion
- Apr 19, 2020
- Last update posted
- Apr 23, 2020
2014 – 2020
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| NIEHS Clinical Research Unit (CRU) | Research Triangle Park | North Carolina | — | — |
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 NCT02257879, 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 Apr 23, 2020 · Synced Jun 25, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02257879 live on ClinicalTrials.gov.