Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Efficacy: later-stage trial registry
2 of 4 indexed Efficacy trials are currently recruiting, with more weight in Phase 3-4.
Corpus placement: #4,115 of 28,707 conditions by registered trial count.
4 US clinical trials · 2 currently recruiting · #4,115 of 28,707 conditions by registered trial count
Efficacy: 4 US clinical trials tracked, 2 recruiting.
Efficacy is the subject of 4 registered US clinical trials on ClinicalTrials.gov, 2 of them currently open to new participants. 3 are in Phase 3-4 (later-stage) and 0 in Phase 1-2 (earlier-stage). The most active sponsor is ARJ Medical, running 2 of these trials.
Enrollment posture brief
Registry condition efficacy
OPEN 2 | RECR 50% | LATE 3 | EARLY 0 | RANK #4115 | SPON 2
Volume-matched condition peers
Nearest open-share peer: Abdominal Aortic Aneurysms (50% recruiting · 6 trials)
Efficacy lists 2 open slots (50% 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 Efficacy 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.
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Efficacy is recruiting above its size-band peers.
2 of 4 indexed trials (50%) 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
PyloPlus Urea Breath Test System Post Therapy Efficacy Confirmation Study
ARJ Medical
NCT05681689
PyloPlus Urea Breath Test System Pediatric Safety and Efficacy Study
ARJ Medical
NCT05276557
GARDASIL 9: 3 Dose vs. 2 Dose With Delayed 3rd Dose
The University of Texas Medical Branch, Galveston
NCT03943875
Directed Use of REmote Patient Management System AMia to Achieve Prescribed Dry Weight
University of California, San Diego
NCT04002440
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 3 | 2 |
| Phase 4 | 1 |
Top Sponsors
Named interventions
Most-linked intervention names on Efficacy records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Efficacy 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 Efficacy page
4 registered trials, 2 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 2 Efficacy trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- ARJ Medical sponsors the most Efficacy trials on record, review their full trial history before evaluating a specific study. See ARJ Medical'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 Efficacy condition card totals 4 registered trials; most-linked intervention Stool Antigen Test; top US site state Texas. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.