Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Amenorrhea: early-phase trial registry
3 of 7 indexed Amenorrhea trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #2,497 of 28,707 conditions by registered trial count.
7 US clinical trials · 3 currently recruiting · #2,497 of 28,707 conditions by registered trial count
Amenorrhea: 7 US clinical trials tracked, 3 recruiting.
Amenorrhea is the subject of 7 registered US clinical trials on ClinicalTrials.gov, 3 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 1 in Phase 1-2 (earlier-stage). The most active sponsor is Cornell University, running 2 of these trials.
Enrollment posture brief
Registry condition amenorrhea
OPEN 3 | RECR 43% | LATE 0 | EARLY 1 | RANK #2497 | SPON 2
Volume-matched condition peers
Nearest open-share peer: Adrenoleukodystrophy (43% recruiting · 7 trials)
Amenorrhea lists 3 open slots (43% of 7 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 Amenorrhea 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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Amenorrhea is recruiting below its size-band peers.
3 of 7 indexed trials (42.9%) 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.
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One sponsor concentrates Amenorrhea research.
Cornell University accounts for 2 of 7 trials (28.6%). 5 distinct sponsors appear on at least one study for this condition label.
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Typical Amenorrhea enrolment sits around 79 participants.
Median target enrolment is 79 among the 7 trials that report a genuine target (sentinel values excluded). 4 of those (57.1%) plan for fewer than 100 participants.
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Amenorrhea splits between interventional and observational designs.
3 interventional and 4 observational studies make up this index (42.9% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
7 total, page 1 of 1
Inherited Reproductive Disorders
National Institute of Environmental Health Sciences (NIEHS)
NCT01500447
Observation of Environment and Reproductive-Endocrine Effects
National Institute of Environmental Health Sciences (NIEHS)
NCT06280807
Ovarian Morphology in Girls
Cornell University
NCT04424576
Menstrual Cycle Maintenance and Quality of Life: A Prospective Study
Memorial Sloan Kettering Cancer Center
NCT00589654
Evaluation of Ovarian Morphology and Function in Overweight Women During Weight Loss
Cornell University
NCT01785719
GnRH Analogue for Ovarian Function Preservation in Hematopoietic Stem Cell Transplantation Patients
M.D. Anderson Cancer Center
NCT00429494
Effect of Intense Training on Ovarian Function and Bone Turnover
USDA, Western Human Nutrition Research Center
NCT02224976
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 2 | 1 |
Top Sponsors
Named interventions
Most-linked intervention names on Amenorrhea records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Amenorrhea 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 Amenorrhea page
7 registered trials, 3 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 3 Amenorrhea trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Cornell University sponsors the most Amenorrhea trials on record, review their full trial history before evaluating a specific study. See Cornell 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 Amenorrhea condition card totals 7 registered trials; most-linked intervention Commercial Weight Loss Program; top US site state New York. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.