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ClinicalTrials.gov 6 recruiting now official registry

Breast Adenocarcinoma clinical trials

6 of 19 indexed Breast Adenocarcinoma trials are currently recruiting.

19 US clinical trials · 6 currently 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.

The research picture

Breast Adenocarcinoma has 19 registered US clinical trials, 6 of them open to new participants right now, about 32% of the total.

6
recruiting participants now
32%
of trials open to enrollment
5
in Phase 3–4 (later-stage)
4
top sponsor: National Cancer Institute (NCI)
Phase 12Phase 26Phase 34Phase 41

Active & 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

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

Reading the Breast Adenocarcinoma Trial Landscape

19 indexed Breast Adenocarcinoma studies · 6 recruiting (32%).

Phase mix: 5 late (III/IV) vs 8 early (I/II).

Top sponsor: National Cancer Institute (NCI) (4 trials), 9 others listed. 19 shown below, recruiting first.

How to read this condition's trial landscape

That ratio is a useful proxy for activity level: a high share of recruiting studies often signals that research interest is current and that new enrollment opportunities are appearing, while a low share typically means the field is dominated by completed or follow-up work where most participant spots have already been filled. These counts reflect the public registry only and include studies at every stage of design, so they should be read as an index of research attention rather than as a measure of treatment availability.

Phase 1 and Phase 2 studies focus on early safety signals, dosing, and preliminary effect, while Phase 3 studies are typically the larger efficacy and safety trials submitted toward regulatory review, and Phase 4 studies follow approved interventions in real-world use. A condition weighted toward later phases often reflects a mature research pipeline with several interventions already close to or past approval, whereas a heavier early-phase tilt suggests the field is still exploring new mechanisms and candidate approaches.

All figures are derived from the public ClinicalTrials.gov dataset maintained by the National Library of Medicine and are reproduced here for reference. Inclusion of a trial, sponsor, or intervention on this page is neither an endorsement nor a recommendation, eligibility, protocol changes, and site-level status can shift frequently, so always verify current details on ClinicalTrials.gov and consult a qualified healthcare provider before acting on anything you see here.

Frequently Asked Questions

How many clinical trials are there for Breast Adenocarcinoma?

PlainTrial tracks 19 US clinical trials for Breast Adenocarcinoma, of which 6 are currently recruiting participants. Data sourced from ClinicalTrials.gov.

How do I find a recruiting trial for Breast Adenocarcinoma?

Use the trial list above filtered by "Recruiting" status, or visit our trial finder at /recruiting to search by condition and state. Always discuss trial participation with your healthcare provider before enrolling.

Is this data current?

Data is sourced from ClinicalTrials.gov and reflects our most recent data pull. Trial status may have changed since then. Always verify current information at ClinicalTrials.gov before making decisions about participation.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from ClinicalTrials.gov (National Library of Medicine). Consult a qualified professional before making decisions based on this data.

Source: ClinicalTrials.gov (NIH/NLM) ClinicalTrials.gov AACT registry · 2026 Trial counts and statuses sourced from ClinicalTrials.gov. Sponsor counts include both industry and federal/academic sponsors.

Verify with NIH →

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page aggregates every registered trial for this condition, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.