Screening Herbs for Drug Interactions (NCT00029263) | Clinical Trial Compass
CompletedPhase 2
Screening Herbs for Drug Interactions
United States140 participantsStarted 2001-08
Plain-language summary
The purpose of this study is to detect potential herb-drug interactions in volunteers.
Who can participate
Age range
18 Years – 50 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Normal healthy volunteers who are taking no medications.
* Must be non-smokers.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1This trial studied herb-drug interactions in healthy volunteers — if I'm currently taking any herbal supplements, could those supplements interfere with my medications in ways that this kind of research was designed to uncover?
2Since this was a Phase 2 trial studying herb-drug interactions, what does it mean that it's now completed — are there published results my doctor could review that might be relevant to the herbal products I'm currently using?
3The trial enrolled healthy participants specifically to study how herbs affect drug metabolism — does my current health condition or any medications I'm on make herb-drug interactions a particular concern I should be aware of?
4Are there specific herbs that were investigated in this trial, and if so, should I avoid or be cautious about any of them given my current treatment plan?
5Given that this trial is completed and focused on how herbal supplements can affect how the body processes drugs, is there guidance my doctor can share about which herbs are safest to use alongside my prescribed medications?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Trial details
NCT IDNCT00029263
SponsorNational Center for Complementary and Integrative Health (NCCIH)