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Clinical Trials for Breast Cancer

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There are 311 active trials for advanced/metastatic breast cancer.

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311 trials meet filter criteria.

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No known activity More information High burden on patient More information
Sponsor: Normunity AccelCo, Inc. (industry) Phase: 1 Start date: Oct. 30, 2025

TrialFetch AI summary: Adults with refractory locally advanced or metastatic solid tumors limited to NSCLC, TNBC, HNSCC, esophageal (SCC/adenocarcinoma), gastric/GEJ adenocarcinoma, and gynecologic (cervical/endometrial/ovarian) cancers (ECOG 0–1) receive NRM-823, a bispecific T‑cell engager targeting CD3 and a novel tumor antigen, as monotherapy with dose escalation/expansion, with a cohort combining NRM-823 plus an immune checkpoint inhibitor. Primary focus is safety and RP2D determination, with preliminary antitumor activity assessment.

ClinicalTrials.gov ID: NCT07182149

No known activity More information High burden on patient More information
Sponsor: Pfizer (industry) Phase: 1 Start date: Dec. 16, 2025

TrialFetch AI summary: Adults with measurable advanced/metastatic breast cancer (progressed after ≥1 line endocrine therapy and a CDK4/6 inhibitor) or advanced/metastatic colorectal cancer (previously treated per standard options, plus one cohort without prior chemo for metastatic disease), ECOG 0–1. Participants receive oral investigational agent PF-08032562 (target/mechanism not publicly described) as monotherapy or combined with fulvestrant (breast) or cetuximab or FOLFOX + bevacizumab (colorectal) in 28-day cycles with dose escalation/expansion.

ClinicalTrials.gov ID: NCT07318805

No known activity More information High burden on patient More information
Sponsor: BeOne Medicines (industry) Phase: 1 Start date: Dec. 11, 2025

TrialFetch AI summary: Enrolls adults with measurable advanced/metastatic breast cancer (primary focus; postmenopausal or on ovarian suppression, ECOG 0–1) and select other refractory advanced solid tumors; Part 1A includes heavily pretreated patients lacking standard options, while breast cancer expansion cohorts include patients with 1–3 prior metastatic lines or (in certain regions) CDK4/6-inhibitor–naïve and untreated for advanced disease. Tests oral BG-75202, a small-molecule KAT6A/KAT6B lysine acetyltransferase inhibitor, as monotherapy and in combination with endocrine therapy (estrogen receptor antagonist) and with CDK4 inhibition plus an aromatase inhibitor.

ClinicalTrials.gov ID: NCT07222267

No known activity More information High burden on patient More information
Sponsor: Novartis Pharmaceuticals (industry) Phase: 1/2 Start date: Dec. 29, 2025

TrialFetch AI summary: Enrolls adults with advanced malignancies, primarily HR+/HER2− advanced breast cancer that has progressed after endocrine therapy plus a CDK4/6 inhibitor (phase II limited to ≤2 prior endocrine lines for advanced disease and no prior chemotherapy/ADC in the advanced setting), with additional phase I cohorts for CCNE1-amplified solid tumors and metastatic castration-resistant prostate cancer. Patients receive the first-in-human investigational agent GVV858 (target/mechanism not publicly specified) as monotherapy or combined with endocrine therapy—fulvestrant (and letrozole in phase I), with phase II evaluating two GVV858 dose regimens plus fulvestrant.

ClinicalTrials.gov ID: NCT07288359

No known activity More information High burden on patient More information
Sponsor: ProteinQure Inc. (industry) Phase: 1 Start date: Sept. 16, 2025

TrialFetch AI summary: Adults with metastatic or locally advanced solid tumors (including interest in TNBC) that have progressed after or are ineligible for standard therapy, with ECOG 0–1, measurable disease, adequate organ/cardiac function, and no significant cardiac disease/QTc prolongation, active >grade 1 neuropathy, or prior MMAE- or SORT1-targeted therapy. Participants receive PQ203, a once-weekly IV SORT1-targeting peptide–drug conjugate delivering the microtubule inhibitor MMAE to SORT1-expressing tumor cells, in dose-escalation/optimization to establish RP2D and assess preliminary antitumor activity.

ClinicalTrials.gov ID: NCT07190469

No known activity More information High burden on patient More information Started >3 years ago More information
Sponsor: Ellipses Pharma (industry) Phase: 1/2 Start date: Jan. 11, 2023

TrialFetch AI summary: The trial involves patients who are postmenopausal women with relapsed locally advanced or metastatic AR+/HER2-/ER+ breast cancer, focusing on the safety and efficacy of EP0062 (vosilasarm), a selective androgen receptor modulator. Participants must have previously treated, inactive cancer and meet specific cardiac and medication criteria.

ClinicalTrials.gov ID: NCT05573126

No known activity More information High burden on patient More information Started >3 years ago More information
Sponsor: A&G Pharmaceutical Inc. (industry) Phase: 1 Start date: Feb. 14, 2022

TrialFetch AI summary: The trial investigates the use of AG01, an anti-progranulin/GP88 monoclonal antibody, in patients with relapsed or refractory advanced solid tumors, including triple negative breast cancer, hormone-resistant breast cancer, non-small cell lung cancer, and mesothelioma, who have no remaining effective treatment options. AG01 is administered biweekly to evaluate its safety, tolerability, and preliminary anti-tumor activity.

ClinicalTrials.gov ID: NCT05627960

No known activity More information High burden on patient More information Started >3 years ago More information
Sponsor: Simcha IL-18, Inc. (industry) Phase: 1/2 Start date: Aug. 6, 2021

TrialFetch AI summary: This trial involves adult patients with advanced or metastatic solid tumors such as melanoma and non-small cell lung cancer who have relapsed after standard treatments, testing the investigational agent ST-067 alone or with pembrolizumab and obinutuzumab to enhance immune response against tumor cells.

ClinicalTrials.gov ID: NCT04787042

No known activity More information High burden on patient More information Started >3 years ago More information
Sponsor: Monte Rosa Therapeutics, Inc (industry) Phase: 1/2 Start date: Oct. 12, 2022

TrialFetch AI summary: This trial enrolls adults with previously treated advanced MYC-driven or selected solid tumors—including NSCLC, SCLC, high-grade neuroendocrine cancers, L- or N-MYC amplified solid tumors, or diffuse large B-cell lymphoma—testing oral MRT-2359, a GSPT1-targeting molecular glue degrader, as monotherapy or in combination with fulvestrant (HR+/HER2- breast cancer) or enzalutamide (prostate cancer).

ClinicalTrials.gov ID: NCT05546268

No known activity More information High burden on patient More information Started >3 years ago More information
Sponsor: Nurix Therapeutics, Inc. (industry) Phase: 1 Start date: Sept. 29, 2021

TrialFetch AI summary: This trial enrolls adults with advanced or metastatic solid tumors or diffuse large B-cell lymphoma who have exhausted standard therapies, evaluating the investigational oral CBL-B inhibitor NX-1607 (which enhances antitumor immunity by blocking a negative regulator of immune cell activation) as monotherapy or in combination with paclitaxel. Eligible tumor types include ovarian, gastric, head and neck, melanoma, NSCLC, prostate, mesothelioma, triple-negative breast, urothelial, cervical, microsatellite-stable colorectal cancer, and DLBCL/Richter transformation.

ClinicalTrials.gov ID: NCT05107674

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