Clinical trials · California
Locally Advanced Breast Cancer clinical trials in California
We’re tracking 124 recruiting locally advanced breast cancer studies with a site in California — including Phase 1, Phase 1/Phase 2, Phase 2, Phase 2/Phase 3 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06272864Recruiting
A study looking at genetics of certain advanced cancers
This study tests the genes of your cancer to learn more about advanced breast, lung, melanoma, or sarcoma tumors. It may help doctors find better ways to treat these cancers in the future.
Stockton, CaliforniaAges 18 years+ - NCT04665739RecruitingPhase 2
Lutetium Lu-177 for lung carcinoid tumors with somatostatin receptors
This trial tests lutetium Lu 177 dotatate, a targeted radiation treatment, for advanced lung neuroendocrine (carcinoid) tumors that have a specific marker called somatostatin receptors. It may help shrink tumors by delivering radiation directly to cancer cells that “light up” on a special scan.
Beverly Hills, CaliforniaAges 18 years+ - NCT07042295RecruitingPhase 2
Amivantamab or Cetuximab for Skin Cancer in People with Weakened Immune Systems
This trial tests two drugs, amivantamab with hyaluronidase or cetuximab, in people with weakened immune systems who have advanced skin cancer (squamous cell carcinoma). The goal is to see if these treatments can help shrink or control the cancer.
La Jolla, CaliforniaAges 18 years+ - NCT07005102RecruitingPhase 2/Phase 3
Telisotuzumab adizutecan and osimertinib for EGFR-positive lung cancer
This trial tests a new drug combination (telisotuzumab adizutecan plus osimertinib) as a first treatment for adults with a specific type of advanced lung cancer that has an EGFR mutation. The goal is to see if the combination is safe and works better than standard care.
Los Angeles, CaliforniaAges 18 years+ - NCT07554521RecruitingPhase 2
Tislelizumab Plus Chemotherapy for Advanced Stomach or Esophageal Cancer
This study tests a combination of two drugs—tislelizumab (an immunotherapy) and chemotherapy—to treat advanced stomach, gastroesophageal junction, or esophageal cancer that cannot be surgically removed. The trial focuses on recruiting patients from racial and ethnic minority communities to ensure the treatment is studied in diverse populations.
Cerritos, CaliforniaAges 18 years+ - NCT06581432RecruitingPhase 2
Zongertinib for advanced cancers with HER2 changes
This trial tests an experimental drug (zongertinib) for people with advanced solid tumors that have certain changes in the HER2 gene. It's for those who have already tried at least one standard treatment and need more options.
Beverly Hills, CaliforniaAges 18 years+ - NCT07228442RecruitingPhase 2
Study of L19IL2 and L19TNF for advanced skin cancer
This trial tests a combination of two drugs, L19IL2 and L19TNF, which are injected directly into skin tumors. It is for patients with advanced cutaneous squamous cell carcinoma that has not responded to or cannot tolerate immune checkpoint inhibitor therapy.
Orange, CaliforniaAges 18 years+ - NCT06908928RecruitingPhase 1
Study of Bulumtatug Fuvedotin for advanced triple-negative breast cancer
This study tests a new drug called bulumtatug fuvedotin for people with triple-negative breast cancer that has spread or come back. It's for those who have already tried certain other treatments, including a taxane and a specific type of antibody-drug conjugate.
La Jolla, CaliforniaAges 18 years+ - NCT07222631RecruitingPhase 1/Phase 2
Study of SB-4826 for advanced solid tumors or lymphomas
This trial tests a new drug, SB-4826, for people with advanced solid tumors or certain types of lymphoma that have not responded to standard treatments. The goal is to see if the drug is safe and effective, either alone or with another drug called rituximab.
La Jolla, CaliforniaAges 18 years+ - NCT04752826RecruitingPhase 1/Phase 2
Testing BI-1808 plus Keytruda for advanced cancers
This trial tests a new cancer medicine (BI-1808) either alone or together with Keytruda (pembrolizumab) in people with advanced cancers. It may help by strengthening the immune system’s attack on cancer, especially if standard treatments are no longer working or aren’t suitable.
Duarte, CaliforniaAges 18 years+ - NCT05948865RecruitingPhase 1
Early trial drug for advanced solid tumors
This Phase 1 study tests CPO301 in adults with advanced or metastatic solid tumors that have worsened or cannot be treated with standard options. It aims to find the safest dose and understand how the treatment affects tumors, especially in certain lung cancer groups.
Santa Monica, CaliforniaAges 18 years+ - NCT07114601RecruitingPhase 1
Study of LY4257496 for people with GRPR-positive solid tumors
This trial tests a new drug, LY4257496, in people with certain types of cancer that have a protein called GRPR on their cells. The study aims to see if the drug can help shrink tumors or slow the cancer's growth.
Duarte, CaliforniaAges 18 years+ - NCT06885034RecruitingPhase 1/Phase 2
Testing a New Drug for Advanced Colon, Rectal, or Pancreatic Cancer
This study tests an experimental drug, alone or combined with other treatments, for advanced colon, rectal, or pancreatic cancer that hasn't responded to standard options or cannot be removed by surgery. The goal is to see if it is safe and if it helps shrink or slow the cancer.
Los Alamitos, CaliforniaAges 18 years+ - NCT06452277RecruitingPhase 3
Testing sevabertinib for advanced HER2-mutated lung cancer
This trial compares a new targeted drug called sevabertinib against standard chemotherapy plus immunotherapy for people with advanced non-small cell lung cancer that has a specific HER2 gene mutation. The goal is to see if sevabertinib works better and is safe.
Newport Beach, CaliforniaAges 18 years+ - NCT06796907RecruitingPhase 1/Phase 2
Mocertatug rezetecan with other drugs for advanced solid tumors
This trial tests a new drug, mocertatug rezetecan, combined with other anti-cancer therapies for people with advanced solid tumors like endometrial or ovarian cancer. It aims to see if the combination is safe and effective.
La Jolla, CaliforniaAges 18 years+ - NCT05417594RecruitingPhase 1/Phase 2
Targeted drug study for advanced cancers with genetic changes
This Phase 1/2 study tests AZD9574 alone or with other cancer treatments in people with advanced solid tumors. It focuses on cancers with specific DNA repair gene changes (like BRCA1/2) or other matching tumor features, and aims to see if the treatment can shrink tumors and improve outcomes.
La Jolla, CaliforniaAges 18–130 - NCT06014658RecruitingPhase 1/Phase 2
Study of MBRC-101 for advanced solid tumors
This trial tests a new drug, MBRC-101, that targets a protein called EphA5 found on some cancer cells. It is for people with advanced solid tumors (like lung, breast, or pancreatic cancer) that have stopped responding to other treatments. The study aims to find a safe dose and see if the drug can shrink tumors.
San Francisco, CaliforniaAges 18 years+ - NCT05789082RecruitingPhase 1/Phase 2
Divarasib for untreated lung cancer with KRAS G12C
This trial studies divarasib to see if it is safe and can shrink or control advanced lung cancer. Participants must have a KRAS G12C mutation and have not had prior treatment for their advanced disease.
Duarte, CaliforniaAges 18 years+ - NCT07671534RecruitingPhase 2
Metronomic chemotherapy with gemcitabine, mitomycin C, and thalidomide for advanced solid tumors
This trial tests a combination of three drugs—gemcitabine, mitomycin C, and thalidomide—given in a low, frequent 'metronomic' schedule to treat advanced solid tumors that have already been treated. The goal is to see if this approach can slow or stop tumor growth with fewer side effects.
Santa Monica, CaliforniaAges 18 years+ - NCT05467748RecruitingPhase 1/Phase 2
Study drug combo for advanced lung cancer after PD-1 treatment
This Phase 1/2 trial tests a combination of an EZH2 inhibitor (tulmimetostat) with a PD-1 blocker (pembrolizumab) for advanced non-small cell lung cancer that has stopped responding to prior PD-1 treatment. It may help shrink or control cancer and is mainly aimed at people who have limited treatment options left.
San Diego, CaliforniaAges 18 years+ - NCT07277413RecruitingPhase 1
Study of IDE892 for advanced solid tumors with MTAP deletion
This study tests a new drug called IDE892, alone or in combination, for people with advanced solid tumors that have a specific genetic change (MTAP deletion). The goal is to see if the drug is safe and whether it can shrink tumors.
Santa Rosa, CaliforniaAges 18 years+ - NCT06788938RecruitingPhase 2
Tarlatamab for advanced DLL3-positive tumors
This trial tests a drug called tarlatamab for people with advanced cancers that have a specific protein called DLL3. It aims to see if this treatment can help when other treatments have stopped working.
San Francisco, CaliforniaAges 18 years+ - NCT03191149RecruitingPhase 2
Osimertinib for lung cancer with an EGFR exon 20 change
This Phase 2 study tests osimertinib (a targeted lung cancer pill) in people with advanced non-small cell lung cancer (NSCLC) whose tumors have an EGFR exon 20 insertion. It aims to see how well osimertinib works for this specific EGFR mutation and how safe it is.
Burbank, CaliforniaAges 18 years+ - NCT06730347RecruitingPhase 2
Study of lorigerlimab for advanced ovarian and other cancers
This trial tests a new drug, lorigerlimab, for people with certain types of ovarian cancer or related cancers that have come back or not responded to treatment. The goal is to see if the drug can help shrink tumors or slow the disease.
Los Angeles, CaliforniaAges 18 years+
Locally Advanced Breast Cancer trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting locally advanced breast cancer studies listed above.
- City of Hope Comprehensive Cancer Center · 4 studies
- University of California San Diego Health · 3 studies
- University of California, San Francisco · 3 studies
- GSK Investigational Site · 2 studies
- University of California San Diego · 2 studies
- University of California, Los Angeles (UCLA) · 2 studies
- USC / Norris Comprehensive Cancer Center · 2 studies
- Cedars-Sinai Medical Center
What taking part in a locally advanced breast cancer study involves
A screening visit first
Before anything else, the study team checks whether you fit — usually a visit with some tests. You can stop at any point, and screening is typically free.
Care at a nearby site
Study visits happen at a clinic or hospital taking part. Many studies cover the cost of the study treatment and related visits, and some reimburse travel.
You stay in control
Taking part is voluntary and you can leave a study at any time, for any reason, without affecting your regular care.
The team decides eligibility
Our fit check is a helpful first read, not a decision. The study team makes the final call after reviewing your health history.
Locally Advanced Breast Cancer trials in other states
Common questions
- Are there locally advanced breast cancer clinical trials in California?
- Yes. We're currently tracking 124 recruiting locally advanced breast cancer studies with a site in California, each rewritten in plain language so you can see what it's testing and who it's for.
- How do I find out if I qualify for a locally advanced breast cancer study in California?
- Each study lists its eligibility rules — age, diagnosis, prior treatments. On every trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Do I have to live in California to take part?
- Not necessarily. These studies have a site in California, but eligibility is about your health, not your address — some people travel to take part, and a few studies reimburse travel. The study team can tell you what's required.
- Does it cost anything to join a locally advanced breast cancer trial?
- Using Clin2 is always free. Many trials cover the study treatment and related visits; some reimburse travel. The study team explains exactly what's covered before you decide.
Not the right time?
New locally advanced breast cancer studies open in California regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.