The state of California currently has 198 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.
Gedatolisib Plus Fulvestrant With or Without Palbociclib vs Standard-of-Care for the Treatment of Patients With Advanced or Metastatic HR+/HER2- Breast Cancer (VIKTORIA-1)
NCT05501886
Recruiting
This is a Phase 3, open-label, randomized, clinical trial evaluating the efficacy and safety of gedatolisib plus fulvestrant with or without palbociclib for the treatment of patients with locally advanced or metastatic HR+/HER2- breast cancer following progression on or after CDK4/6 and aromatase inhibitor therapy.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/23/2025
Locations: Pacific Cancer Medical Center Inc, Anaheim, California +10 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:
06/23/2025
Locations: Hoag Memorial Presbyterian, Newport Beach, California
Conditions: Hormone-receptor-positive Breast Cancer, HER2-negative Breast Cancer, Metastatic Breast Cancer
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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:
06/20/2025
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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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:
06/20/2025
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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Sacituzumab Tirumotecan (MK-2870) Plus Pembrolizumab Versus TPC in TNBC Who Did Not Achieve pCR (MK-2870-012)
NCT06393374
Recruiting
This is a randomized, open-label study comparing the efficacy and safety of adjuvant sacituzumab tirumotecan (MK-2870) in combination with pembrolizumab compared to treatment of physician's choice (TPC) in participants with triple-negative breast cancer (TNBC) who received neoadjuvant therapy and did not achieve a pathological complete response (pCR) at surgery. The primary objective is to compare sacituzumab tirumotecan plus pembrolizumab to TPC (pembrolizumab or pembrolizumab plus capecitabine... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/20/2025
Locations: Scripps Cancer Center ( Site 0052), La Jolla, California +8 locations
Conditions: Triple-Negative 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:
06/20/2025
Locations: The Oncology Institute Of Hope And Innovation, Cerritos, California +1 locations
Conditions: Metastatic HER2-positive Breast Cancer
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Study of Belzutifan (MK-6482) Plus Fulvestrant for ER+/HER2- Metastatic Breast Cancer (MK-6482-029/LITESPARK-029)
NCT06428396
Recruiting
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 and above
Trial Updated:
06/19/2025
Locations: Cedars Sinai Medical Center ( Site 0012), Beverly Hills, California +3 locations
Conditions: Metastatic Breast Cancer
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Phase 3 Study to Evaluate the Efficacy and Safety of HER2/Neu Peptide GLSI-100 (GP2 + GM-CSF) in HER2/Neu Positive Subjects
NCT05232916
Recruiting
This is a prospective, randomized, double-blinded, placebo-controlled, multi-center, Phase 3 study of GLSI-100 immunotherapy in HLA-A\*02 positive and HER2/neu positive subjects who are at high risk for disease recurrence and have completed both neoadjuvant and postoperative adjuvant standard of care therapy. Treatment consists of 6 intradermal injections, Primary Immunization Series (PIS), over the first 6 months of treatment and 5 booster intradermal injections spaced 6 months apart. A third o... Read More
Gender:
ALL
Ages:
Between 18 years and 100 years
Trial Updated:
06/18/2025
Locations: Providence St. Jude Medical Center - Virginia K. Crosson Cancer Center, Fullerton, California +6 locations
Conditions: Breast Cancer
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An Adjuvant Endocrine-based Therapy Study of Camizestrant (AZD9833) in ER+/HER2- Early Breast Cancer (CAMBRIA-2)
NCT05952557
Recruiting
This is a Phase III open-label study to assess if camizestrant improves outcomes compared to standard adjuvant endocrine therapy for patients with ER+/HER2- early breast cancer with intermediate-high or high risk for disease recurrence who completed definitive locoregional therapy (with or without chemotherapy). The planned duration of treatment in either arm within the study will be 7 years.
Gender:
ALL
Ages:
Between 18 years and 130 years
Trial Updated:
06/18/2025
Locations: Research Site, Duarte, California +8 locations
Conditions: Breast Cancer, Early Breast Cancer
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A Phase 2 Study of PCS6422 With Capecitabine in Patients With Advanced or Metastatic Breast Cancer
NCT06568692
Recruiting
This is an adaptive Phase 2, open-label, randomized, multi-center study evaluating up to 2 regimens of PCS6422 with capecitabine (Cap) vs. standard dose of Cap alone in patients with advanced or metastatic breast cancer. The goal of the study is to assess the efficacy and safety of PCS6422 + Cap as a treatment option for patients with advanced or metastatic breast cancer who are not eligible for anthracycline- or taxane-containing therapies, or other available therapies, including PD-1 or PARP i... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: Valkyrie Clinical Trials, Los Angeles, California +1 locations
Conditions: Breast Cancer, TNBC - Triple-Negative Breast Cancer, HER2-negative Breast Cancer
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A First-in-Human Study of MEN2312 in Adults With Advanced Breast Cancer
NCT06638307
Recruiting
This is a first-in-human study of MEN2312, a lysine acetyltransferase 6 (KAT6) inhibitor, in adult participants with advanced breast cancer.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: UC San Diego Moores Cancer Center, La Jolla, California +1 locations
Conditions: Advanced Breast Cancer
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Metformin for the Treatment of Insulin Resistance in Women With Stage I-III Breast Cancer Completing Chemotherapy
NCT06763328
Recruiting
This phase III trial evaluates how often women develop insulin resistance and type-2 diabetes and compares metformin with usual care to usual care alone in treating insulin resistance in women with stage I-III breast cancer after chemotherapy. Insulin resistance occurs when cells stop responding to insulin and is a risk factor for developing diabetes and heart disease. Higher levels of insulin have been shown to be associated with aggressive breast cancer. Metformin hydrochloride decreases the a... Read More
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: City of Hope Medical Center, Duarte, California +2 locations
Conditions: Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Invasive Breast Carcinoma
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