Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Interaction: early-phase trial registry
3 of 4 indexed Interaction trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #4,115 of 28,707 conditions by registered trial count.
4 US clinical trials · 3 currently recruiting · #4,115 of 28,707 conditions by registered trial count
Interaction: 4 US clinical trials tracked, 3 recruiting.
Interaction is the subject of 4 registered US clinical trials on ClinicalTrials.gov, 3 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 4 in Phase 1-2 (earlier-stage). The most active sponsor is Washington State University, running 3 of these trials.
Enrollment posture brief
Registry condition interaction
OPEN 3 | RECR 75% | LATE 0 | EARLY 4 | RANK #4115 | SPON 3
Volume-matched condition peers
Nearest open-share peer: Activity, Motor (75% recruiting · 8 trials)
Interaction lists 3 open slots (75% of 4 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Interaction on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.
-
Interaction is recruiting above its size-band peers.
3 of 4 indexed trials (75%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
Open and recent trials
4 total, page 1 of 1
Contribution of UGT2B17 to the Pharmacokinetics of Diclofenac
Washington State University
NCT06053411
Effects of a Hemp Product on the Pharmacokinetics and Pharmacodynamics of Clopidogrel
Washington State University
NCT06692933
Evaluating the Pharmacokinetics of Oregano and Potential Oregano-drug Interactions Using a Drug Cocktail Approach
Washington State University
NCT06693960
The Effect of Itraconazole on BCT197 Exposure in Healthy Male Participants
Mereo BioPharma
NCT03498170
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 4 |
Top Sponsors
Named interventions
Most-linked intervention names on Interaction records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Interaction trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Interaction page
4 registered trials, 3 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 3 Interaction trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Washington State University sponsors the most Interaction trials on record, review their full trial history before evaluating a specific study. See Washington State University's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Interaction condition card totals 4 registered trials; most-linked intervention BCT197; top US site state Washington. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.