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ClinicalTrials.gov 6 recruiting now early-phase tilt small index

Breast Adenocarcinoma: early-phase trial registry

6 of 19 indexed Breast Adenocarcinoma trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #902 of 28,707 conditions by registered trial count.

19 US clinical trials · 6 currently recruiting · #902 of 28,707 conditions by registered trial count

Breast Adenocarcinoma: 19 US clinical trials tracked, 6 recruiting.

Breast Adenocarcinoma is the subject of 19 registered US clinical trials on ClinicalTrials.gov, 6 of them currently open to new participants. 5 are in Phase 3-4 (later-stage) and 8 in Phase 1-2 (earlier-stage). The most active sponsor is National Cancer Institute (NCI), running 4 of these trials.

Enrollment posture brief

Registry condition breast-adenocarcinoma

OPEN 6 | RECR 32% | LATE 5 | EARLY 8 | RANK #902 | SPON 4

Nearest open-share peer: Back Pain (32% recruiting · 38 trials)

Amyotrophic Lateral Sclerosi52.6%Anesthesia, Local42.1%Alcohol Consumption36.8%Breast Adenocarcinoma (this)32%Attention Deficit Hyperactiv26.3%
Open-enrollment share among volume-matched conditions near Breast Adenocarcinoma

Breast Adenocarcinoma lists 6 open slots (32% of 19 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 Adenocarcinoma 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 Adenocarcinoma is recruiting below its size-band peers.

    6 of 19 indexed trials (31.6%) 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 Breast Adenocarcinoma research.

    National Cancer Institute (NCI) accounts for 4 of 19 trials (21.1%). 11 distinct sponsors appear on at least one study for this condition label.

  3. Typical Breast Adenocarcinoma enrolment sits around 68 participants.

    Median target enrolment is 68 among the 19 trials that report a genuine target (sentinel values excluded). 10 of those (52.6%) plan for fewer than 100 participants.

  4. Breast Adenocarcinoma research is mostly interventional.

    15 interventional and 4 observational studies make up this index (78.9% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 12Phase 26Phase 34Phase 41

Open and recent trials

19 total, page 1 of 1

RECRUITING Phase 1 764 participants

Rinatabart Sesutecan (Rina-S, PRO1184, GEN1184) for Advanced Solid Tumors (GCT1184-01/ PRO1184-001)

Genmab

NCT05579366

RECRUITING 230 participants

Immune Response to Anti-HER2 Therapies in Patients With HER2-Positive Stage I-IV Breast Cancer

Mayo Clinic

NCT04517838

RECRUITING Phase 4 68 participants

Effect of HSD3B1 (1245C) Gene Mutation on Treatment of Stage I-III Breast Cancer

University of Washington

NCT05183828

RECRUITING Phase 2 36 participants

High Cannabidiol Plant Extract (BRC-001) to Improve Aromatase Inhibitor-Induced Arthralgia in Women With Breast Cancer

City of Hope Medical Center

NCT06538389

RECRUITING NA 30 participants

Definitive Radiation Therapy for Inoperable Breast Cancer

Alexander Stessin

NCT07122713

RECRUITING 25 participants

Enhancing Skin Appearance and Quality of Life in Breast Cancer Survivors on Aromatase Inhibitor Therapy

Mayo Clinic

NCT06401889

ACTIVE NOT RECRUITING Phase 3 10,273 participants

Hormone Therapy With or Without Combination Chemotherapy in Treating Women Who Have Undergone Surgery for Node-Negative Breast Cancer (The TAILORx Trial)

National Cancer Institute (NCI)

NCT00310180

ACTIVE NOT RECRUITING Phase 3 4,994 participants

Doxorubicin Hydrochloride, Cyclophosphamide, and Paclitaxel With or Without Bevacizumab in Treating Patients With Lymph Node-Positive or High-Risk, Lymph Node-Negative Breast Cancer

National Cancer Institute (NCI)

NCT00433511

ACTIVE NOT RECRUITING Phase 3 782 participants

Doxorubicin Hydrochloride and Cyclophosphamide Followed by Paclitaxel With or Without Carboplatin in Treating Patients With Triple-Negative Breast Cancer

NRG Oncology

NCT02488967

ACTIVE NOT RECRUITING Phase 3 608 participants

Exemestane With or Without Entinostat in Treating Patients With Recurrent Hormone Receptor-Positive Breast Cancer That is Locally Advanced or Metastatic

National Cancer Institute (NCI)

NCT02115282

ACTIVE NOT RECRUITING Phase 2 200 participants

Radiation Therapy in Treating Patients With Stage 0-II Breast Cancer

M.D. Anderson Cancer Center

NCT01245712

ACTIVE NOT RECRUITING NA 137 participants

Hypofractionated Regional Nodal Irradiation Clinical Trial for Women With Breast Cancer

Virginia Commonwealth University

NCT02515110

ACTIVE NOT RECRUITING 125 participants

Multi-Institutional Transgender & Gender-Diverse Breast Cancer Study

Medical College of Wisconsin

NCT06234488

ACTIVE NOT RECRUITING 68 participants

Study of the Safety of MRI Scans in People Who Have Breast Tissue Expanders After Mastectomy

Memorial Sloan Kettering Cancer Center

NCT04769960

ACTIVE NOT RECRUITING Phase 2 63 participants

Pertuzumab, Trastuzumab, and Paclitaxel Albumin-Stabilized Nanoparticle Formulation in Treating Patients With HER2-Positive Advanced Breast Cancer

City of Hope Medical Center

NCT01730833

ACTIVE NOT RECRUITING Phase 1 57 participants

Entinostat, Nivolumab, and Ipilimumab in Treating Patients With Solid Tumors That Are Metastatic or Cannot Be Removed by Surgery or Locally Advanced or Metastatic HER2-Negative Breast Cancer

National Cancer Institute (NCI)

NCT02453620

ACTIVE NOT RECRUITING Phase 2 46 participants

Neoadjuvant Pembrolizumab + Decitabine Followed by Std Neoadj Chemo for Locally Advanced HER2- Breast Ca

Virginia Commonwealth University

NCT02957968

COMPLETED Phase 2 37 participants

Nab-Paclitaxel and Atezolizumab Before Surgery in Treating Patients With Triple Negative Breast Cancer

M.D. Anderson Cancer Center

NCT02530489

COMPLETED Phase 2 36 participants

Talazoparib Before Standard Therapy in Treating Patients With Invasive, BRCA-Mutated Breast Cancer

M.D. Anderson Cancer Center

NCT02282345

Phase Distribution

PhaseTrial count
Phase 1 2
Phase 2 6
Phase 3 4
Phase 4 1

Named interventions

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

Laboratory Biomarker Analysis Other
4 trials
Biospecimen Collection Procedure
4 trials
Paclitaxel Drug
3 trials
Carboplatin Drug
3 trials
Cyclophosphamide Drug
3 trials
Entinostat Drug
2 trials
Doxorubicin Hydrochloride Drug
2 trials
Exemestane Drug
2 trials

US sites by state

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

California 7 trials
Florida 4 trials
Arizona 4 trials
Alabama 4 trials
Texas 3 trials
Ohio 3 trials
New York 3 trials
Arkansas 3 trials

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

What to do with this Breast Adenocarcinoma page

19 registered trials, 6 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 Breast Adenocarcinoma condition card totals 19 registered trials; most-linked intervention Laboratory Biomarker Analysis; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.