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ClinicalTrials.gov 3 recruiting now early-phase tilt small index

Cancer of Breast: early-phase trial registry

3 of 9 indexed Cancer of Breast trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #1,916 of 28,707 conditions by registered trial count.

9 US clinical trials · 3 currently recruiting · #1,916 of 28,707 conditions by registered trial count

Cancer of Breast: 9 US clinical trials tracked, 3 recruiting.

Cancer of Breast is the subject of 9 registered US clinical trials on ClinicalTrials.gov, 3 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 4 in Phase 1-2 (earlier-stage). The most active sponsor is Washington University School of Medicine, running 5 of these trials.

Enrollment posture brief

Registry condition cancer-of-breast

OPEN 3 | RECR 33% | LATE 0 | EARLY 4 | RANK #1916 | SPON 5

Nearest open-share peer: Adherence, Treatment (33% recruiting · 6 trials)

Acute Lymphoblastic Leukemia55.6%Acute Respiratory Distress S55.6%Cancer of Breast (this)33%Acute Otitis Media22.2%Acute Heart Failure11.1%
Open-enrollment share among volume-matched conditions near Cancer of Breast

Cancer of Breast lists 3 open slots (33% of 9 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 Cancer of Breast 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. Cancer of Breast is recruiting below its size-band peers.

    3 of 9 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.

  2. One sponsor concentrates Cancer of Breast research.

    Washington University School of Medicine accounts for 5 of 9 trials (55.6%). 5 distinct sponsors appear on at least one study for this condition label.

  3. Most Cancer of Breast trials plan to enrol fewer than 100 people.

    Median target enrolment is 41 among the 9 trials that report a genuine target (sentinel values excluded). 7 of those (77.8%) plan for fewer than 100 participants.

  4. Cancer of Breast research is mostly interventional.

    9 interventional and 0 observational studies make up this index (100% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 12Phase 22

Open and recent trials

9 total, page 1 of 1

Phase Distribution

PhaseTrial count
Phase 1 2
Phase 2 2

Named interventions

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

Optical Tomography Using Near Infrared Diffused Light Assisted with Ultrasound Device
1 trials
Recent Physical Activity Questionnaire Behavioral
1 trials
Weight measurement Procedure
1 trials
FACT-G questionnaire Behavioral
1 trials
Pittsburgh Sleep Quality Index Other
1 trials
Epworth Sleepiness Scale Other
1 trials
European Organization for Research and Treatment of Cancer-Quality of Life Questionnaire Other
1 trials
Dim red light using light visor cap Other
1 trials

US sites by state

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

Missouri 5 trials
Texas 1 trials
Pennsylvania 1 trials
Georgia 1 trials
California 1 trials

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

What to do with this Cancer of Breast page

9 registered trials, 3 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

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 Cancer of Breast condition card totals 9 registered trials; most-linked intervention Optical Tomography Using Near Infrared Diffused Light Assisted with Ultrasound; top US site state Missouri. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.