The state of California currently has 201 active clinical trials seeking participants for Breast Cancer research studies. These trials are conducted in various cities, including Los Angeles, San Francisco, San Diego and Sacramento.
Targeted Therapy Directed by Genetic Testing in Treating Patients With Locally Advanced or Advanced Solid Tumors, The ComboMATCH Screening Trial
NCT05564377
Recruiting
This ComboMATCH patient screening trial is the gateway to a coordinated set of clinical trials to study cancer treatment directed by genetic testing. Patients with solid tumors that have spread to nearby tissue or lymph nodes (locally advanced) or have spread to other places in the body (advanced) and have progressed on at least one line of standard systemic therapy or have no standard treatment that has been shown to prolong overall survival may be candidates for these trials. Genetic tests loo... Read More
Gender:
ALL
Ages:
All
Trial Updated:
08/22/2025
Locations: PCR Oncology, Arroyo Grande, California +21 locations
Conditions: Advanced Malignant Solid Neoplasm, Locally Advanced Malignant Solid Neoplasm, Metastatic Malignant Solid Neoplasm, Unresectable Malignant Solid Neoplasm, Recurrent Endometrial Carcinoma, Recurrent Fallopian Tube Carcinoma, Recurrent Ovarian Carcinoma, Recurrent Primary Peritoneal Carcinoma, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8, Metastatic HER2-Negative Breast Carcinoma, Unresectable HER2-Negative Breast Carcinoma, Malignant Female Reproductive System Neoplasm, Recurrent Malignant Female Reproductive System Neoplasm, Recurrent Malignant Solid Neoplasm
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Saruparib (AZD5305) Plus Camizestrant Compared With CDK4/6 Inhibitor Plus Endocrine Therapy or Plus Camizestrant in HR-Positive, HER2-Negative (IHC 0, 1+, 2+/ ISH Non-amplified), BRCA1, BRCA2, or PALB2m Advanced Breast Cancer
NCT06380751
Recruiting
The primary objective of the study is to measure efficacy of saruparib (AZD5305) plus camizestrant compared with physician's choice CDK4/6i plus ET in patients with BRCA1, BRCA2, or PALB2m, HR-positive, HER2-negative (defined as IHC 0, 1+, 2+/ ISH non-amplified) advanced breast cancer
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/22/2025
Locations: Research Site, Glendale, California +2 locations
Conditions: Advanced Breast Cancer
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A Study Comparing the Efficacy and Safety of Zanidatamab to Trastuzumab, Each in Combination With Physician's Choice Chemotherapy, for the Treatment of Participants With Metastatic HER2-positive Breast Cancer
NCT06435429
Recruiting
The efficacy and safety of zanidatamab in combination with physician's choice of chemotherapy compared with trastuzumab in combination with physician's choice of chemotherapy will be evaluated for the treatment of participants with metastatic HER2-positive breast cancer who have progressed on, or are intolerant to, previous T-DXd treatment.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/22/2025
Locations: The Oncology Institute Of Hope And Innovation, Cerritos, California +3 locations
Conditions: Metastatic HER2-positive Breast Cancer
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Adding an Immunotherapy Drug, MEDI4736 (Durvalumab), to the Usual Chemotherapy Treatment (Paclitaxel, Cyclophosphamide, and Doxorubicin) for Stage II-III Breast Cancer
NCT06058377
Recruiting
This phase III trial compares the addition of an immunotherapy drug (durvalumab) to usual chemotherapy versus usual chemotherapy alone in treating patients with MammaPrint High 2 Risk (MP2) stage II-III hormone receptor positive, HER2 negative breast cancer. Immunotherapy with monoclonal antibodies, such as durvalumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Chemotherapy drugs, such as paclitaxel, doxorubicin, and... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/22/2025
Locations: Sutter Auburn Faith Hospital, Auburn, California +33 locations
Conditions: Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, HER2-Negative Breast Carcinoma, Hormone Receptor-Positive Breast Carcinoma
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A Study to Evaluate Efficacy and Safety of Giredestrant Compared With Fulvestrant (Plus a CDK4/6 Inhibitor), in Participants With ER-Positive, HER2-Negative Advanced Breast Cancer Resistant to Adjuvant Endocrine Therapy (pionERA Breast Cancer)
NCT06065748
Recruiting
This is a Phase III, randomized, open-label multicenter study that will evaluate the efficacy and safety of giredestrant compared with fulvestrant, both in combination with the investigator's choice of a CDK4/6 inhibitor (palbociclib, ribociclib or abemaciclib), in participants with estrogen receptor-positive (ER+), human epidermal growth factor receptor 2-negative (HER2-) advanced breast cancer who have developed resistance to adjuvant endocrine therapy.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/21/2025
Locations: Sutter Auburn Faith Hospital, Auburn, California +8 locations
Conditions: Estrogen Receptor-Positive, HER2-Negative Advanced Breast Cancer
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A Study of Breast Cancer Risk Factors and Outcomes of People in Florida
NCT06780176
Recruiting
The purpose of this study is to understand why different people have different risks and outcomes for breast cancer and non-breast cancer.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/20/2025
Locations: University of California, Los Angeles (Specimen Analysis only), Los Angeles, California
Conditions: Breast Cancer, Breast Neoplasms, Breast Diseases
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A Study to Examine the Safety of Different Doses of BG-68501 Given to Participants With Advanced-Stage Tumors
NCT06257264
Recruiting
This study is a first-in-human (FIH), Phase 1a/1b study of BG-68501, a cyclin-dependent kinase-2 inhibitor (CDK2i), to assess the safety, tolerability, pharmacokinetics (PK), pharmacodynamics, and preliminary antitumor activity of BG-68501 in participants with advanced, nonresectable, or metastatic solid tumors as monotherapy and in combination with fulvestrant with or without BGB-43395, a selective CDK4 inhibitor, in adults with hormone receptor positive (HR+)/human epidermal growth factor rece... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Hoag Memorial Presbyterian, Newport Beach, California
Conditions: Breast Cancer, Small Cell Lung Cancer, Ovarian Cancer, Gastric Cancer, Hormone-receptor-positive Breast Cancer, Hormone Receptor Positive HER-2 Negative Breast Cancer, Advanced Solid Tumor, Endometrial Cancer, Prostate Cancer, TNBC - Triple-Negative Breast Cancer, GastroEsophageal Cancer, Bladder Cancer
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Study of Oral MRT-2359 in Selected Cancer Patients
NCT05546268
Recruiting
This Phase 1/2, open-label, multicenter study is conducted in patients with previously treated selected solid tumors, including non-small cell lung cancer (NSCLC), small cell lung cancer (SCLC), high-grade neuroendocrine cancer of any primary site, diffuse large B-cell lymphoma (DLBCL), and tumors with L-MYC or N-MYC amplification. Patients receive escalating doses of a GSPT1 molecular glue degrader MRT-2359 to determine safety, tolerability, maximum tolerated dose (MTD) and/or recommended Phase... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Hoag Memorial Hospital Presbyterian, Newport Beach, California +1 locations
Conditions: NSCLC, SCLC, DLBCL, NSCLC With High or Low L-MYC or N-MYC Expression, High Grade Neuroendocrine Cancer, L-MYC and N-MYC Amplified Solid Tumors, HR-positive, HER2-negative Breast Cancer, Prostate Cancer
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A Phase 1 Study of BMS-986500 as Monotherapy or Combination Therapy in Advanced Solid Tumors
NCT06997029
Recruiting
The purpose of this study is to assess BMS-986500 as monotherapy in advanced solid tumors and as combination therapy in CDK4/6 inhibitor pre-treated advanced breast cancer.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Local Institution - 0003, Fullerton, California +3 locations
Conditions: Advanced Solid Tumor, Advanced Breast Cancer, Advanced Ovarian Cancer
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[177Lu]Lu-NeoB in Combination With Ribociclib and Fulvestrant in Participants With ER+, HER2- and GRPR+ Advanced Breast Cancer
NCT05870579
Recruiting
The purpose of this trial is to estimate the recommended dose (RD) of \[177Lu\]Lu-NeoB in combination with ribociclib and fulvestrant in participants with estrogen receptor (ER) positive (ER+), human epidermal growth factor receptor-2 (HER2) negative (HER2-) and gastrin releasing peptide receptor (GRPR) positive (GRPR+) advanced breast cancer experiencing early relapse from (neo)adjuvant endocrine therapy or who have progressed on endocrine therapy in combination with a CDK4/6 inhibitor for adva... Read More
Gender:
ALL
Ages:
Between 18 years and 100 years
Trial Updated:
08/19/2025
Locations: UCLA Jonsson Comp Cancer Center, Los Angeles, California +1 locations
Conditions: Breast Cancer
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BGB-21447 (Bcl-2 Inhibitor) Combinations for Adults With Hormone-Receptor Positive (HR+)/Human Epidermal Growth Factor Receptor 2 Negative (HER2-) Metastatic Breast Cancer
NCT06756932
Recruiting
The purpose of this study is to assess the safety and tolerability of BGB-21447 (a B-cell leukemia/lymphoma 2 inhibitor, Bcl-2i) in combination with fulvestrant, with or without BGB-43395 (cyclin-dependent kinase 4 inhibitor, CDK4i), in adults with HR+/HER2- metastatic breast cancer.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Hoag Memorial Presbyterian, Newport Beach, California
Conditions: Hormone-receptor-positive Breast Cancer, HER2-negative Breast Cancer, Metastatic Breast Cancer
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A Study to Evaluate the Efficacy and Safety of Giredestrant in Combination With Phesgo (Pertuzumab, Trastuzumab, and Hyaluronidase-zzxf) Versus Phesgo in Participants With Locally Advanced or Metastatic Breast Cancer (heredERA Breast Cancer)
NCT05296798
Recruiting
This Phase III, randomized, two-arm, open-label, multicenter study will evaluate the efficacy and safety of giredestrant plus Phesgo compared with Phesgo after induction therapy with Phesgo plus taxane in participants with human epidermal growth factor receptor 2 (HER2)-positive, estrogen receptor (ER)-positive advanced breast cancer (metastatic or locally advanced disease not amenable to curative treatment) who have not previously received a systemic non-hormonal anti-cancer therapy in the adva... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Los Angeles Hematology Oncology Medical Group, Los Angeles, California
Conditions: Locally Advanced or Metastatic Breast Cancer
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