Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Menstrual Cycle clinical trials
3 of 5 indexed Menstrual Cycle trials are currently recruiting.
Corpus placement: #3,391 of 28,707 conditions by registered trial count.
5 US clinical trials · 3 currently recruiting · #3,391 of 28,707 conditions by registered trial count
Menstrual Cycle: 5 US clinical trials tracked, 3 recruiting.
Menstrual Cycle is the subject of 5 registered US clinical trials on ClinicalTrials.gov, 3 of them currently open to new participants. The most active sponsor is Apple, running 1 of these trials.
Enrollment posture brief
Registry condition menstrual-cycle
OPEN 3 | RECR 60% | LATE 0 | EARLY 0 | RANK #3391 | SPON 1
Volume-matched condition peers
Nearest open-share peer: Acute Kidney Injury (AKI) (60% recruiting · 5 trials)
Menstrual Cycle lists 3 open slots (60% of 5 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 Menstrual Cycle 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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Menstrual Cycle is recruiting above its size-band peers.
3 of 5 indexed trials (60%) 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 Menstrual Cycle research.
Apple accounts for 1 of 5 trials (20%). 5 distinct sponsors appear on at least one study for this condition label.
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Typical Menstrual Cycle enrolment sits around 500 participants.
Median target enrolment is 500 among the 5 trials that report a genuine target (sentinel values excluded). 2 of those (40%) plan for fewer than 100 participants.
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Menstrual Cycle research leans observational.
1 interventional and 4 observational studies make up this index (20% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
5 total, page 1 of 1
Apple Women's Health Study
Apple
NCT04196595
Identification and Validation of Epigenetic Biomarkers of PMDD
Johns Hopkins University
NCT06771583
Moderate Aerobic Exercise for Managing Menstrual Cycle Symptoms
University of Colorado, Colorado Springs
NCT07084714
Menstrual Cycle Maintenance and Quality of Life: A Prospective Study
Memorial Sloan Kettering Cancer Center
NCT00589654
The Effects of Continuous Administration of a Monophasic Oral Contraceptive on Bleeding Days and Endometrial and Ovarian Function
Milton S. Hershey Medical Center
NCT00128726
Phase Distribution
Phase data not available
Top Sponsors
Named interventions
Most-linked intervention names on Menstrual Cycle records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Menstrual Cycle 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 Menstrual Cycle page
5 registered trials, 3 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 3 Menstrual Cycle trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Apple sponsors the most Menstrual Cycle trials on record, review their full trial history before evaluating a specific study. See Apple'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 Menstrual Cycle condition card totals 5 registered trials; most-linked intervention Moderate Aerobic Exercise; top US site state Pennsylvania. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.