Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Estrogen: later-stage trial registry
1 of 3 indexed Estrogen trials are currently recruiting, with more weight in Phase 3-4.
Corpus placement: #5,209 of 28,707 conditions by registered trial count.
3 US clinical trials · 1 currently recruiting · #5,209 of 28,707 conditions by registered trial count
Estrogen: 3 US clinical trials tracked, 1 recruiting.
Estrogen is the subject of 3 registered US clinical trials on ClinicalTrials.gov, 1 of them currently open to new participants. 2 are in Phase 3-4 (later-stage) and 0 in Phase 1-2 (earlier-stage). The most active sponsor is University of Delaware, running 2 of these trials.
Enrollment posture brief
Registry condition estrogen
OPEN 1 | RECR 33% | LATE 2 | EARLY 0 | RANK #5209 | SPON 2
Volume-matched condition peers
Nearest open-share peer: Adherence, Treatment (33% recruiting · 6 trials)
Estrogen lists 1 open slots (33% of 3 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 Estrogen 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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Estrogen is recruiting below its size-band peers.
1 of 3 indexed trials (33.3%) 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
3 total, page 1 of 1
Disentangling the Effects of Daily Stress, Sleep, and Sex Hormones on Accelerated Vascular Aging in Midlife Women
University of Delaware
NCT06745466
Impact of Estradiol on Endothelial Function in Peri-Menopausal Women
University of Delaware
NCT04255160
Estrogen and Microvascular Function
Medical College of Wisconsin
NCT06043310
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 4 | 2 |
Top Sponsors
Named interventions
Most-linked intervention names on Estrogen records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Estrogen 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 Estrogen page
3 registered trials, 1 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 1 Estrogen trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- University of Delaware sponsors the most Estrogen trials on record, review their full trial history before evaluating a specific study. See University of Delaware'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 Estrogen condition card totals 3 registered trials; most-linked intervention Nω-nitro-L-arginine methyl ester (L-NAME); top US site state Delaware. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.