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ClinicalTrials.gov 63 recruiting now early-phase tilt #120 of 28,707 conditions

Breast Carcinoma: early-phase trial registry

63 of 107 indexed Breast Carcinoma trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #120 of 28,707 conditions by registered trial count.

107 US clinical trials · 63 currently recruiting · #120 of 28,707 conditions by registered trial count

Breast Carcinoma: 107 US clinical trials tracked, 63 recruiting.

Breast Carcinoma is the subject of 107 registered US clinical trials on ClinicalTrials.gov, 63 of them currently open to new participants. 5 are in Phase 3-4 (later-stage) and 33 in Phase 1-2 (earlier-stage). The most active sponsor is Mayo Clinic, running 21 of these trials.

Enrollment posture brief

Registry condition breast-carcinoma

OPEN 63 | RECR 59% | LATE 5 | EARLY 33 | RANK #120 | SPON 21

Nearest open-share peer: Alcohol Use Disorder (59% recruiting · 185 trials)

Breast Carcinoma (this)59%Non-Hodgkin Lymphoma54.2%Cognitive Impairment43.4%Crohn's Disease34.9%Hepatitis C12%
Open-enrollment share among volume-matched conditions near Breast Carcinoma

Breast Carcinoma lists 63 open slots (59% of 107 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 Breast Carcinoma 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.

  1. Breast Carcinoma is recruiting above its size-band peers.

    63 of 107 indexed trials (58.9%) are open to enrollment, against a 37.1% average across 139 conditions with 100+ trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. One sponsor concentrates Breast Carcinoma research.

    Mayo Clinic accounts for 21 of 107 trials (19.6%). 30 distinct sponsors appear on at least one study for this condition label.

  3. Typical Breast Carcinoma enrolment sits around 126 participants.

    Median target enrolment is 126 among the 107 trials that report a genuine target (sentinel values excluded). 45 of those (42.1%) plan for fewer than 100 participants.

  4. Breast Carcinoma research is mostly interventional.

    77 interventional and 30 observational studies make up this index (72% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 115Phase 218Phase 35

Phase Distribution

PhaseTrial count
Phase 1 15
Phase 2 18
Phase 3 5

Named interventions

Most-linked intervention names on Breast Carcinoma records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Questionnaire Administration Other
29 trials
Biospecimen Collection Procedure
19 trials
Survey Administration Other
12 trials
Non-Interventional Study Other
10 trials
Electronic Health Record Review Other
9 trials
Educational Intervention Other
9 trials
Laboratory Biomarker Analysis Other
8 trials
Interview Other
7 trials

US sites by state

Facility locations filed on Breast Carcinoma trials. A trial with sites in several states counts in each.

California 27 trials
Texas 22 trials
New York 15 trials
Florida 15 trials
Arizona 14 trials
Ohio 13 trials
Minnesota 13 trials
Michigan 9 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Breast Carcinoma page

107 registered trials, 63 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

  • 63 Breast Carcinoma trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
  • Mayo Clinic sponsors the most Breast Carcinoma trials on record, review their full trial history before evaluating a specific study. See Mayo Clinic'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 Breast Carcinoma condition card totals 107 registered trials; most-linked intervention Questionnaire Administration; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.