Breast Cancer Trial Landscape (June 2026)

Last updated: Jun 9, 2026 · Built by a patient who got tired of scrolling ClinicalTrials.gov

Overview

2,270
Recruiting
333
Phase 1
801
Phase 2
263
Phase 3
63
Phase 4

Active interventional trials with status RECRUITING or NOT_YET_RECRUITING. A multi-phase trial (e.g. 1/2) is counted in each of its phases.

Looking for breast cancer trials matched to your specific case?

Biomarkers, stage, prior treatments — get a ranked shortlist in minutes.

Find My Matches →

Mechanism Breakdown

Recruiting trials grouped by drug class. Trials with unclassifiable or non-therapeutic interventions are excluded from this view.

Antibody-drug conjugate (ADC)
171
Checkpoint inhibitor
129
Chemotherapy
128
Hormonal / nuclear-receptor therapy
123
Other / unclassified
116
Other inhibitor
70
Kinase inhibitor (other)
53
Monoclonal antibody
42
Bispecific antibody
38
Tyrosine kinase inhibitor (TKI)
36
CAR-T cellular therapy
16
Small-molecule inhibitor
15

Recently Updated Trials

NCTPhaseTitleMechanism
NCT071787303NeoAdjuvant Therapy Comparing Sacituzumab Govitecan+Pembrolizumab vs. SoC Chemotherapy in Clinical Stage II-III, Triple-negative Early Breast CancerTrop-2 + PD-1 -- antibody-drug conjugate (ADC) + immune checkpoint inhibitor
NCT072976671GCAR1, a Chimeric Antigen Receptor (CAR) T-CELL Therapy for Relapsed/Refractory GPNMB-Expressing Solid TumoursGPNMB -- chimeric antigen receptor (CAR) T-cell therapy
NCT063121763A Study of Sacituzumab Tirumotecan (MK-2870) as a Single Agent and in Combination With Pembrolizumab (MK-3475) Versus Treatment of Physician's Choice in Participants With HR+/HER2- Unresectable Locally Advanced or Metastatic Breast Cancer (MK-2870-010)Trop2 -- antibody-drug conjugate (sacituzumab tirumotecan); PD-1 -- immune checkpoint inhibitor (pembrolizumab); chemotherapy (paclitaxel, nab-paclitaxel, capecitabine)
NCT069667003A Clinical Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) in People With Breast Cancer (MK-2870-032)Trop2 -- antibody-drug conjugate (ADC); PD-1 -- immune checkpoint inhibitor (monoclonal antibody)
NCT063933743Sacituzumab Tirumotecan (MK-2870) Plus Pembrolizumab Versus TPC in TNBC Who Did Not Achieve pCR (MK-2870-012)Trop-2 -- antibody-drug conjugate (sacituzumab tirumotecan) combined with PD-1 immune checkpoint inhibitor (pembrolizumab)

Top Sponsors

SponsorRecruiting trials
Fudan University108
Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University40
Memorial Sloan Kettering Cancer Center34
M.D. Anderson Cancer Center28
Cancer Institute and Hospital, Chinese Academy of Medical Sciences28

Geographic Distribution

Countries/regions with the most active trial sites for breast cancer. A multi-site trial is counted once per country/region.

United States
722
China
606
France
167
Spain
123
Italy
122
Canada
104
South Korea
96
Germany
92
United Kingdom
73
Australia
73

Emerging Classes

Phase-1 trials whose listed start date falls within the last 12 months — the leading edge of the field.

StartNCTTitleMechanism
Oct 1, 2026NCT07553390Phase 1b Study Of TRICK-NK In Combination With T-Dxd In Treatment-Refractory Breast CancersTGFBR2 -- knockout; TROP2 -- chimeric antigen receptor (CAR) NK cells; HER2 -- antibody-drug conjugate (trastuzumab deruxtecan)
Sep 2026NCT07545122A Phase 1a/1b, First-Time-in-Human Study of CT-202, a Nectin-4 Directed Bispecific Antibody, in Participants With Recurring Triple Negative Breast, Colorectal, Urothelial CancersNectin-4 -- bispecific antibody (CT-202)
Jul 3, 2026NCT07601620A Study to Evaluate the Pharmacokinetics, Efficacy, and Safety of HLX319 vs. EU-Phesgo® in the Neoadjuvant Therapy of HER2-Positive Early or Locally Advanced Breast CancerHER2 -- monoclonal antibody (HLX319, biosimilar to Phesgo)
Jul 1, 2026NCT07494448Phase Ib/II Study of Zanidatamab Plus Tucatinib and Chemotherapy in HER2-Positive Advanced Breast CancerHER2 -- bispecific antibody plus HER2 tyrosine kinase inhibitor
Jul 2026NCT07136428Asciminib in HER2+ Breast Cancer Brain MetastasesBCR-ABL allosteric site -- allosteric inhibitor + HER2 -- monoclonal antibody
Jun 30, 2026NCT07300475Cancer Immunotherapeutic (PCI) Strategy in Triple Negative Breast Cancer PatientsPD-1 + chemotherapy agents -- immune checkpoint inhibitor + chemotherapy
Jun 30, 2026NCT07297667GCAR1, a Chimeric Antigen Receptor (CAR) T-CELL Therapy for Relapsed/Refractory GPNMB-Expressing Solid TumoursGPNMB -- chimeric antigen receptor (CAR) T-cell therapy
Jun 30, 2026NCT07310420A Trial to Evaluate Ovarian Suppression Following Subcutaneous ZOLADEX 10.8 mg in Premenopausal Women With HR+, HER2- Advanced Breast CancerGnRH receptor -- ovarian suppression via luteinizing hormone release inhibition (GnRH agonist)

You've seen the breast cancer landscape. Now find the trials that fit your case.

Enter biomarkers, stage, and prior treatments — get ranked matches with eligibility breakdown in minutes.

Find My Matches →

Source: ClinicalTrials.gov, synced daily. Aggregated by ClinTrialFinder.