Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.

ClinicalTrials.gov 19 recruiting now early-phase tilt

Hormone Receptor-Positive Breast Cancer: early-phase trial registry

19 of 24 indexed Hormone Receptor-Positive Breast Cancer trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #686 of 28,707 conditions by registered trial count.

24 US clinical trials · 19 currently recruiting · #686 of 28,707 conditions by registered trial count

Hormone Receptor-Positive Breast Cancer: 24 US clinical trials tracked, 19 recruiting.

Hormone Receptor-Positive Breast Cancer is the subject of 24 registered US clinical trials on ClinicalTrials.gov, 19 of them currently open to new participants. 1 are in Phase 3-4 (later-stage) and 21 in Phase 1-2 (earlier-stage). The most active sponsor is Exelixis, running 2 of these trials.

Enrollment posture brief

Registry condition hormone-receptor-positive-breast-cancer

OPEN 19 | RECR 79% | LATE 1 | EARLY 21 | RANK #686 | SPON 2

Nearest open-share peer: Kaposi Sarcoma (79% recruiting · 14 trials)

Hormone Receptor-Positiv (th…79%Aplastic Anemia37.5%Behavior37.5%Allergic Rhinitis8.3%Adult Acute Myeloid Leukemia0%
Open-enrollment share among volume-matched conditions near Hormone Receptor-Positive Breast Cancer

Hormone Receptor-Positive Breast Cancer lists 19 open slots (79% of 24 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 Hormone Receptor-Positive Breast Cancer 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. Hormone Receptor-Positive Breast Cancer is recruiting above its size-band peers.

    19 of 24 indexed trials (79.2%) are open to enrollment, against a 39.7% average across 762 conditions with 20-99 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Hormone Receptor-Positive Breast Cancer trials is spread across many organizations.

    Exelixis accounts for 2 of 24 trials (8.3%). 20 distinct sponsors appear on at least one study for this condition label.

  3. Typical Hormone Receptor-Positive Breast Cancer enrolment sits around 120 participants.

    Median target enrolment is 120 among the 24 trials that report a genuine target (sentinel values excluded). 11 of those (45.8%) plan for fewer than 100 participants.

  4. Hormone Receptor-Positive Breast Cancer research is mostly interventional.

    22 interventional and 2 observational studies make up this index (91.7% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 113Phase 28Phase 41

Open and recent trials

24 total, page 1 of 1

RECRUITING Phase 1 396 participants

Study of XB010 in Subjects With Solid Tumors

Exelixis

NCT06545331

RECRUITING Phase 2 375 participants

A Single Arm Phase II Study of ADjuvant Endocrine Therapy, Pertuzumab, and Trastuzumab for Patients With Anatomic Stage I Hormone Receptor-positive, HER2-positive Breast Cancer

Dana-Farber Cancer Institute

NCT04569747

RECRUITING Phase 1 300 participants

BGB-43395 Alone or as Part of Combination Therapies in Participants With Breast Cancer and Other Advanced Solid Tumors

BeiGene

NCT06120283

RECRUITING Phase 2 297 participants

PhII Randomized CAPecitabine + ELAcestrant vs. Capecitabine Alone in ER+ Breast Cancer (CAPELA)

Kristina A. Fanucci

NCT07222215

RECRUITING Phase 1 258 participants

A Study to Examine the Safety of Different Doses of BG-68501 Given to Participants With Advanced-Stage Tumors

BeiGene

NCT06257264

RECRUITING Phase 2 200 participants

Ribociclib And Endocrine Treatment of Physician's Choice for Locoregional Recurrent, Resected Hormone Receptor Positive HER2 Negative Breast Cancer

Oana Danciu

NCT05467891

RECRUITING Phase 2 185 participants

Correlation of Clinical Response to Pathologic Response in Patients With Early Breast Cancer

Baylor Breast Care Center

NCT05020860

RECRUITING 170 participants

Study of Screening Brain MRIs in Stage IV Breast Cancer

H. Lee Moffitt Cancer Center and Research Institute

NCT05115474

RECRUITING Phase 1 120 participants

BGB-21447 (Bcl-2 Inhibitor) Combinations for Adults With Hormone-Receptor Positive (HR+)/Human Epidermal Growth Factor Receptor 2 Negative (HER2-) Metastatic Breast Cancer

BeOne Medicines

NCT06756932

RECRUITING 100 participants

DiviTum®TKa: A Biomarker Assay for Efficacy in HR+ Metastatic Breast Cancer Patients

Mayo Clinic

NCT06388122

RECRUITING Phase 1 95 participants

Phase 1/2 Study to Evaluate EP0062 as Monotherapy and in Combination in Patients With Advanced or Metastatic AR+/HER-2-/ER+ Breast Cancer

Ellipses Pharma

NCT05573126

RECRUITING Phase 2 75 participants

Sequencing Antibody Drug Conjugates in ER+/HER2 LOW/ULTRA LOW MBC

Reshma L. Mahtani, D.O.

NCT06263543

RECRUITING Phase 1 63 participants

VS-6766+Abema+Fulv in Met HR+/HER- BC

Adrienne G. Waks

NCT05608252

RECRUITING Phase 4 60 participants

A Study of Revaree Plus in People With Breast Cancer

Memorial Sloan Kettering Cancer Center

NCT07042581

RECRUITING Phase 2 60 participants

ETHAN - ET for Male BC

Jose Pablo Leone

NCT05501704

RECRUITING Phase 2 40 participants

Tirzepatide for Weight Loss Intervention in Early-Stage Hormone Receptor Positive/HER2 Negative Breast Cancer

Rutgers, The State University of New Jersey

NCT06518837

RECRUITING Phase 1 28 participants

A Study of Abemaciclib and Radiation Therapy in People With Metastatic Breast Cancer

Memorial Sloan Kettering Cancer Center

NCT06678269

RECRUITING Phase 1 20 participants

A Study to Assess CLBR001+ABBV-461 in Subjects With Locally Advanced or Metastatic Breast Cancer

Calibr, a division of Scripps Research

NCT06878248

RECRUITING Phase 2 20 participants

Anastrazole, Fulvestrant & Abemaciclib for HR+HER2- Metastatic Breast Cancer

University of California, Irvine

NCT05524584

ACTIVE NOT RECRUITING Phase 1 890 participants

First-in-human Study of DS-1062a for Advanced Solid Tumors (TROPION-PanTumor01)

Daiichi Sankyo Co.

NCT03401385

ACTIVE NOT RECRUITING Phase 1 70 participants

TH1902 in Patients With Advanced Solid Tumors

Theratechnologies

NCT04706962

ACTIVE NOT RECRUITING Phase 1 13 participants

Capecitabine In Combination With Cemiplimab In Patient With Metastatic Breast Cancer

H. Lee Moffitt Cancer Center and Research Institute

NCT05064085

COMPLETED Phase 1 269 participants

Study of XB002 in Subjects With Solid Tumors (JEWEL-101)

Exelixis

NCT04925284

COMPLETED Phase 1 226 participants

Study to Assess Safety, Pharmacokinetics, and Efficacy of Oral CC-223 for Patients With Advanced Solid Tumors, Non-Hodgkin Lymphoma or Multiple Myeloma

Celgene

NCT01177397

Phase Distribution

PhaseTrial count
Phase 1 13
Phase 2 8
Phase 4 1

Named interventions

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

Fulvestrant Drug
7 trials
Abemaciclib Drug
5 trials
Elacestrant Drug
3 trials
BGB-43395 Drug
3 trials
Anastrozole Drug
3 trials
Letrozole Drug
2 trials
Capecitabine Drug
2 trials
XB002 Drug
1 trials

US sites by state

Facility locations filed on Hormone Receptor-Positive Breast Cancer trials. A trial with sites in several states counts in each.

Texas 10 trials
Florida 10 trials
New York 8 trials
Massachusetts 8 trials
California 8 trials
New Jersey 7 trials
Tennessee 6 trials
Virginia 5 trials

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

What to do with this Hormone Receptor-Positive Breast Cancer page

24 registered trials, 19 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

  • 19 Hormone Receptor-Positive Breast Cancer trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
  • Exelixis sponsors the most Hormone Receptor-Positive Breast Cancer trials on record, review their full trial history before evaluating a specific study. See Exelixis'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 Hormone Receptor-Positive Breast Cancer condition card totals 24 registered trials; most-linked intervention Fulvestrant; top US site state Texas. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.