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Clinical Research Directory

Browse clinical research sites, groups, and studies.

235 clinical studies listed.

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Metastatic Breast Cancer

Tundra lists 235 Metastatic Breast Cancer clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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RECRUITING

NCT07179809

Group-based Comprehensive Lifestyle Program for Women With Metastatic Breast Cancer

The research study is to learn how the ACLP can best support patients with stable HR+/HER2- MBC.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-08-31

1 state

Metastatic Breast Cancer
RECRUITING

NCT06120283

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

This is a dose escalation and dose expansion study to compare how well BGB-43395, a selective cyclin-dependent kinase 4 (CDK4) inhibitor, works as monotherapy or in combination with fulvestrant, letrozole, or elacestrant in participants with hormone receptor positive (HR+) and human epidermal growth factor 2 negative (HER2-) breast cancer (BC) and other advanced solid tumors. The main purpose of this study is to explore the recommended dosing for BGB-43395.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-28

25 states

Advanced Solid Tumor
Advanced Breast Cancer
Metastatic Breast Cancer
+5
ACTIVE NOT RECRUITING

NCT06428396

Study of Belzutifan (MK-6482) Plus Fulvestrant for ER+/HER2- Metastatic Breast Cancer (MK-6482-029/LITESPARK-029)

The purpose of this study is to assess the efficacy and safety of belzutifan (MK-6482) plus fulvestrant compared to everolimus plus endocrine therapy (ET) (investigator's choice of fulvestrant or exemestane) in adults with estrogen receptor-positive, human epidermal growth factor receptor 2-negative (ER+/HER2-) unresectable metastatic breast cancer. There is no formal hypothesis testing in this study.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-28

25 states

Metastatic Breast Cancer
RECRUITING

NCT06414733

HER-2 B Cell Peptide Vaccine

This phase I trial studies the side effects and best dose of vaccine therapy in treating patients with metastatic solid tumors. Vaccines made from antibodies and peptides combined with tumor cells may help the body build an effective immune response to kill tumor cells.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-27

1 state

Metastatic Breast Cancer
HER2-positive Breast Cancer
EGFR Overexpression
+2
RECRUITING

NCT06827236

A Clinical Study to Find the Optimal Dose of an Investigational Treatment Called BNT323 When Used in Combination With Another Investigational Treatment, BNT327, and to Test if That Combination Treatment is Safe and Beneficial for Patients With Advanced Breast Cancer

This is a Phase I/II, multi-site, open-label, two-part study designed to evaluate the efficacy, safety, optimized dose and contribution of components of BNT323 (also known as trastuzumab pamirtecan and DB-1303) in combination with BNT327 (also known as pumitamig and PM8002) in participants with hormone receptor-positive (HR+) or hormone receptor-negative (HR-), Human epidermal growth factor receptor (HER)2-positive, HER2-low (immunohistochemistry \[IHC\] 1+ or IHC 2+/in situ hybridization -), HER2-ultralow (IHC 0, with membrane staining) or HER2-null breast cancer (BC), or triple-negative breast cancer (TNBC).

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-27

10 states

Locally Advanced Breast Cancer
Unresectable Breast Carcinoma
Metastatic Breast Cancer
RECRUITING

NCT07227831

A Ph II Study of the TheraBionic P1 Device in Subjects With Hormone Positive Breast Cancer

The goal of this clinical trial is to learn if the TheraBionic P1 device given to patients with advanced or metastatic HR positive, HER2 negative breast cancer who have progressed on standard of care options can affect patients survival. The main questions it aims to answer are: * will the TheraBionic P1 device affect progression free and overall survival in advanced or metastatic HR positive, HER2 negative breast cancer * the long term safety and tolerability of the TheraBionic P1 device * assessment of how the disease responded to the TheraBionic P1 device

Gender: All

Ages: 22 Years - Any

Updated: 2026-08-26

1 state

HER2-negative Breast Cancer
Hormone Receptor Positive Tumor
Advanced Breast Cancer
+1
NOT YET RECRUITING

NCT07706179

Targeting Aurora A Kinase to Overcome Treatment Resistance in Advanced HR+/HER2+ Breast Cancer

The goal of this clinical trial is to learn if alisertib in addition to usual care works to treat HR+/HER2+ breast cancer. The main questions it aims to answer are: * Does alisertib stop the communication between HR and HER2? * Are there genetic markers that predict how well someone's cancer will respond to alisertib? Participants will receive alisertib in addition to their usual care.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-26

1 state

HR+/HER2+ Breast Cancer
Metastatic Breast Cancer
RECRUITING

NCT07222215

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

The goal of this research study is to compare a combination of two drugs, capecitabine and elacestrant to capecitabine alone as a treatment for advanced estrogen receptor-positive (ER+) breast cancer. This study is designed for participants with cancer that has previously stopped responding to medication in the class of therapy called CDK 4/6 inhibitors, including palbociclib, ribociclib, or abemaciclb. The names of the study drugs involved in this study are: * Elacestrant (a type of selective estrogen receptor degrader) * Capecitabine (a type of fluoropyrimidine antimetabolite)

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-26

1 state

Estrogen-receptor-positive Breast Cancer
Metastatic Breast Cancer
Breast Cancer
+6
RECRUITING

NCT06533826

TReatment of ADC-Refractory Breast CancEr With Dato-DXd or T-DXd: TRADE DXd

The purpose of this study is to test the safety and effectiveness of the sequence of two investigational drugs (trastuzumab deruxtecan followed by datopotamab deruxtecan, or datopotamab deruxtecan followed by trastuzumab deruxtecan) to learn whether the treatment works in treating HER2-negative (HER2-low or HER2-0) metastatic breast cancer. The names of the study drugs involved in this study are: * Datopotamab deruxtecan (a type of antibody drug conjugate) * Trastuzumab deruxtecan (a type of antibody drug conjugate)

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-26

10 states

Breast Cancer
HER2-low Breast Cancer
Metastatic Breast Cancer
+1
COMPLETED

NCT02536742

Palbociclib in Molecularly Characterized ER-positive/HER2-negative Metastatic Breast Cancer

This international, multicenter, prospective single arm Phase II biomarker discovery clinical trial with the primary objective of assessing the association of PFS with gene mutations, gene copy number aberrations and gene signatures in post-menopausal women with hormone receptor positive, HER2-negative metastatic or locally relapsed breast cancer whose disease has progressed after prior adjuvant endocrine therapy or one line systemic treatment, i.e., endocrine treatment or chemotherapy, administered for metastatic disease.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-08-26

Metastatic Breast Cancer
RECRUITING

NCT05894239

A Study to Evaluate the Efficacy and Safety of Inavolisib in Combination With Phesgo Versus Placebo in Combination With Phesgo in Participants With PIK3CA-Mutated HER2-Positive Locally Advanced or Metastatic Breast Cancer

This study will evaluate the efficacy and safety of inavolisib in combination with Phesgo (pertuzumab, trastuzumab, and rHuPH20 injection for subcutaneous use) compared with placebo in combination with Phesgo, as maintenance therapy, after induction therapy in participants with previously untreated HER2-positive advanced breast cancer (ABC).

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-25

47 states

Metastatic Breast Cancer
ACTIVE NOT RECRUITING

NCT06590857

Trial of 225Ac-DOTATATE (RYZ101) in Subjects With ER+, HER2-negative Unresectable or Metastatic Breast Cancer Expressing SSTRs.

Phase 1b/2 open-label trial of 225Ac-DOTATATE (RYZ101) in subjects with ER+, HER2-negative unresectable or metastatic breast cancer expressing SSTRs.

Gender: All

Updated: 2026-08-24

23 states

Metastatic Breast Cancer
HER2-negative Breast Cancer
ER+ Breast Cancer
+7
ACTIVE NOT RECRUITING

NCT04360941

PAveMenT: Palbociclib and Avelumab in Metastatic AR+ Triple Negative Breast Cancer

This clinical study is aiming to determine the safest doses and schedule for the combination of two drugs named palbociclib and avelumab. The study will also be investigating how effective the combination is for a subgroup of breast cancer patients whose cancer expresses the androgen receptor (AR) but not the oestrogen (hormone) or HER2 receptors. Palbociclib is a drug used in routine care for hormone-receptor (HR) positive and HER2 negative advanced breast cancer, the most common subtype of breast cancer. It is possible that the combination of palbociclib and avelumab will be a more effective cancer treatment than each drug separately, but this is unknown and this study is needed to establish the best dosage and schedule of each drug as well as how effective the combination is.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-21

1 state

Triple Negative Breast Cancer
Locally Advanced Breast Cancer
Recurrent Breast Cancer
+3
RECRUITING

NCT07203378

Nurturing Exercise Routine for Greater Improvement in Zest and Energy on Enhertu

The goal of this study is to test the efficacy of using a 12-week, home-based, unsupervised aerobic and resistance training exercise program for changes in cancer-related fatigue in patients with metastatic breast cancer who are receiving Enhertu.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-20

1 state

Metastatic Breast Cancer
RECRUITING

NCT05945732

DESTINY Breast Respond HER2-(Ultra)Low Europe

Trastuzumab deruxtecan (T-DXd) as monotherapy is indicated for the treatment of adult patients with unresectable or metastatic HER2-low breast cancer who have received prior chemotherapy in the metastatic setting or developed disease recurrence during or within 6 months of completing adjuvant chemotherapy. Based on the extended therapeutic indication of Trastuzumab deruxtecan (Enhertu®), a new patient population will be enrolled, comprising adult patients with unresectable or metastatic HR-positive, HER2-low, or HER2-(ultra)low breast cancer who have received at least one endocrine therapy in the metastatic setting and are not considered suitable for endocrine therapy as the next line of treatment.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-19

Unresectable Breast Cancer
Metastatic Breast Cancer
HER2-low Expressing Breast Cancer
+1
TERMINATED

NCT07408089

Study of the Kinesin Oral Molecular Degrader BBI-940 in Subjects With Advanced or Metastatic Breast Cancer

This is a first-in-human, open-label, Phase 1 study evaluating BBI-940, an investigational kinesin oral molecular degrader, administered as monotherapy or in combination with fulvestrant in adults with advanced or metastatic breast cancer.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-19

4 states

Breast Cancer
Metastatic Breast Cancer
Advanced Breast Cancer
RECRUITING

NCT06072612

Study of the Bria-IMT Regimen and CPI vs Physicians' Choice in Advanced Metastatic Breast Cancer.

This is a multicenter randomized, open label study to evaluate overall survival with the Bria-IMT regimen in combination with Checkpoint Inhibitor \[Retifanlimab\], versus Treatment of Patients'/Physicians' Choice (TPC) in advanced metastatic or locally recurrent breast cancer (aMBC) patients with no approved alternative therapies available.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-17

21 states

Breast Cancer
Metastatic Breast Cancer
Breast Neoplasm
+2
RECRUITING

NCT07085767

Palazestrant in Combination With Ribociclib for the First-line Treatment of ER+/HER2- Advanced Breast Cancer

This phase 3 clinical trial compares the efficacy and safety of palazestrant with ribociclib to letrozole and ribociclib in women and men who have not received prior systemic anti-cancer treatment for advanced breast cancer.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-17

131 states

Breast Cancer
Locally Advanced Breast Cancer
Metastatic Breast Cancer
+2
ACTIVE NOT RECRUITING

NCT06016738

OP-1250 (Palazestrant) vs. Standard of Care for the Treatment of ER+/HER2- Advanced Breast Cancer

This phase 3 clinical trial compares the safety and efficacy of palazestrant (OP-1250) to the standard-of-care options of fulvestrant or an aromatase inhibitor in women and men with breast cancer whose disease has advanced on one endocrine therapy in combination with a CDK4/6 inhibitor.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-13

123 states

Breast Cancer
Advanced Breast Cancer
Metastatic Breast Cancer
+2
RECRUITING

NCT06525766

Adaptive Therapy With Capecitabine for Treatment of Metastatic ER Positive, HER2 Negative Breast Cancer

This phase II trial evaluates the effect of capecitabine on tumor response using imaging and tumor markers to adjust dose (adaptive therapy) in patients with estrogen receptor (ER) positive, HER2 negative breast cancer that has spread from where it first started to other areas in the body (metastatic). Capecitabine is in a class of medications called antimetabolites. It is taken up by tumor cells and breaks down into fluorouracil, a substance that kills tumor cells. Adaptive therapy with capecitabine based on tumor burden response may slow or stop the growth of tumor cells in patients with metastatic ER positive, HER2 negative breast cancer.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-12

1 state

Anatomic Stage IV Breast Cancer AJCC v8
Estrogen-receptor-positive Breast Cancer
Metastatic HER2-Negative Breast Carcinoma
+1
RECRUITING

NCT06263543

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

The purpose of this research study is to see if the medication sacituzumab govitecan (SG) is effective at the currently approved dose and schedule in people who have previously received trastuzumab deruxtecan (T-DXd) for the treatment of metastatic, hormone receptor positive (HR+)/human epidermal growth factor 2 low (HER2 low) breast cancer. Although SG is approved to treat metastatic HR+/HER2 negative breast cancer, the aim of this study is to determine if SG is still effective specifically in people who have already received T-DXd.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-12

3 states

Breast Cancer
Metastatic Breast Cancer
Advanced Breast Cancer
+2
RECRUITING

NCT03424005

A Study Evaluating the Efficacy and Safety of Multiple Treatment Combinations in Patients With Metastatic or Locally Advanced Breast Cancer

This is an umbrella study evaluating the efficacy and safety of multiple treatment combinations in participants with metastatic or inoperable locally advanced breast cancer. The study will be performed in two stages. During Stage 1, seven cohorts will be enrolled in parallel in this study: Cohort 1 will consist of programmed death-ligand 1 (PD-L1)-positive participants who have received no prior systemic therapy for metastatic or inoperable locally advanced triple-negative breast cancer (TNBC) (first-line \[1L\] PD-L1+ cohort). Cohort 2 will consist of participants who had disease progression during or following 1L treatment with chemotherapy for metastatic or inoperable locally-advanced TNBC and have not received cancer immunotherapy (CIT) (second-line \[2L\] CIT-naïve cohort). Cohort 3, 5, 6 and 7 will consist of participants with locally advanced or metastatic hormone receptor-positive (HR+), human epidermal growth factor receptor 2 (HER2)-negative disease with one or more PIK3CA mutations. Cohort 4 will consist of participants with locally advanced or metastatic HER2+ /HER2-low disease with one or more PIK3CA mutations who had disease progression on standard-of-care therapies (HER2+ /HER2-low cohort). In each cohort, eligible participants will initially be assigned to one of several treatment arms (Stage 1). During Stage 2, participants in the 2L CIT-naïve cohort who experience disease progression, loss of clinical benefit, or unacceptable toxicity during Stage 1 may be eligible to continue treatment with a different treatment combination, provided Stage 2 is open for enrollment and all eligibility criteria are met.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-12

14 states

Metastatic Breast Cancer
RECRUITING

NCT07347600

A Study to Evaluate the Effectiveness and Safety of Inavolisib in Participants With Endocrine-resistant, PIK3CA-mutated, Hormone Receptor-positive, HER2-negative Locally Advanced or Metastatic Breast Cancer

The main purpose of this study is to evaluate the effectiveness of inavolisib based regimen in participants with endocrine-resistant, phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha gene (PIK3CA)-mutated, hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) locally advanced or metastatic breast cancer (LA/mBC), following on or after completing adjuvant endocrine therapy in routine clinical practice in China.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-11

4 states

Locally Advanced Breast Cancer
Metastatic Breast Cancer
ACTIVE NOT RECRUITING

NCT05090358

Preventing High Blood Sugar in People Being Treated for Metastatic Breast Cancer

The purpose of this study to find out whether a very low carbohydrate diet (ketogenic diet), a low carbohydrate diet, or the study drug canagliflozin can prevent high blood sugar and may improve the effectiveness of cancer therapy in people who are receiving standard treatment with alpelisib and fulvestrant for their metastatic PIK3CA-mutant breast cancer.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-11

3 states

Breast Cancer
Breast Cancer Stage IV
Metastatic Breast Cancer