Clinical trials · California
Metastatic Cancer clinical trials in California
We’re tracking 364 recruiting metastatic cancer studies with a site in California — including Phase 1, Phase 1/Phase 2, Phase 2, Phase 2/Phase 3, Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT04613596RecruitingPhase 2/Phase 3
Adagrasib for KRAS G12C lung cancer, alone or with pembrolizumab
This trial studies adagrasib (an anti-cancer drug) either alone or with pembrolizumab (an immunotherapy) in people with advanced lung cancer that has a KRAS G12C mutation. It aims to shrink tumors and improve outcomes, including for people without urgent brain treatment needs.
Anaheim, CaliforniaAges 18 years+ - NCT07200830RecruitingPhase 3
Testing different schedules of a targeted radiation drug for advanced prostate cancer
This trial tests two different dosing schedules of a drug called Lutetium-177 PSMA RLT, which delivers radiation directly to prostate cancer cells. It is for men with advanced prostate cancer that has stopped responding to hormone therapy and has spread, who have not yet had chemotherapy for this stage of the disease.
Bakersfield, CaliforniaAges 18 years+ - NCT06500481RecruitingPhase 3
Proton vs standard radiation for cancer spread to brain/spine lining
This trial compares a newer type of radiation (proton therapy) to standard radiation for people whose breast or lung cancer has spread to the lining of the brain and spinal cord. It aims to see if proton therapy can better control the disease while causing fewer side effects.
Encinitas, CaliforniaAges 18 years+ - NCT06260033RecruitingPhase 2
Radiation Therapy for Oligoprogressive ER+ Breast Cancer
This trial tests whether a precise radiation treatment (SBRT) can target a few growing spots of estrogen receptor-positive breast cancer that has spread to other parts of the body. It also uses a special PET scan (FES PET/CT) to see how well the cancer responds. The goal is to slow down the cancer and delay the need for stronger treatments.
Duarte, CaliforniaAges 18 years+ - NCT07594106RecruitingPhase 1/Phase 2
New immunotherapy for advanced prostate or kidney cancer
This trial tests new experimental drugs (REGN15505 and REGN4336) designed to target and attack cancer cells in advanced prostate cancer or kidney cancer. These drugs work by boosting your immune system to recognize and destroy cancer, and may be combined with other approved immunotherapy drugs.
Duarte, CaliforniaAges 18 years+ - NCT05805371RecruitingPhase 1
PSCA CAR-T cells with or without radiation for prostate cancer
This Phase 1 study tests a prostate cancer treatment made of PSCA-targeted CAR-T cells, with or without radiation, to help control advanced prostate cancer. It aims to find a safe treatment approach and see how well it works in people whose cancer has PSCA.
Duarte, CaliforniaAges 18 years+ - NCT07222566RecruitingPhase 3
New drug plus chemotherapy for advanced lung cancer
This trial tests a new study drug called PF-08634404 combined with standard chemotherapy for people with advanced lung cancer that has not been treated before. It aims to see if this combination works better than chemotherapy alone.
Anaheim, CaliforniaAges 18 years+ - NCT03606967RecruitingPhase 2
Individualized vaccine added to standard treatment for metastatic triple-negative breast cancer
This Phase 2 trial tests whether adding a personalized cancer vaccine to durvalumab (an immunotherapy), tremelimumab (another immunotherapy), and chemotherapy can improve outcomes for people with metastatic triple-negative breast cancer. It may help your immune system recognize your specific tumor features.
Orange, CaliforniaAges 18 years+ - NCT07492641RecruitingPhase 3
A new drug plus letrozole for advanced HR+ breast cancer
This trial tests a new medicine (BGB-43395) combined with letrozole against the usual CDK4/6 inhibitor plus letrozole. It is for people with advanced or metastatic HR-positive, HER2-negative breast cancer who have not yet had treatment for advanced disease.
Fountain Valley, CaliforniaAges 18 years+ - NCT06675136RecruitingPhase 1
Nab-paclitaxel PIPAC with paclitaxel and ramucirumab for stomach cancer spread to belly lining
This trial tests a new way to deliver chemotherapy directly into the belly for stomach cancer that has spread to the lining of the abdomen (peritoneal metastases). It also combines two standard chemotherapy drugs. The goal is to see if this approach can help people whose cancer progressed after first treatment.
Duarte, CaliforniaAges 18 years+ - NCT05376878RecruitingPhase 4
PET/MRI scan to guide treatment in HER2+ brain metastatic breast cancer
This trial tests a special PET/MRI imaging scan using a labeled drug to help doctors evaluate HER2+ breast cancer that has spread to the brain. It focuses on patients who plan to receive fam-trastuzumab deruxtecan, a targeted cancer medicine, and aims to see how well the scan can support treatment decisions.
Duarte, CaliforniaAges 18 years+ - NCT07066657RecruitingPhase 1
Study of MRG007 for advanced solid tumors
This trial tests a new drug called MRG007 for people with advanced solid tumors that haven't responded to other treatments. The drug targets a protein called CDH17 on cancer cells; you need a tumor sample to check for it.
Los Angeles, CaliforniaAges 18 years+ - NCT06136650RecruitingPhase 3
Study of a new drug for advanced prostate cancer
This study tests a new oral drug called opevesostat against another standard hormone therapy for men with advanced prostate cancer that has spread and is no longer controlled by a first hormone therapy. It's for men who have not had chemotherapy for this stage and who have not used a PARP inhibitor or chose not to.
Irvine, CaliforniaAges 18 years+ - NCT05408845RecruitingPhase 2
Study drug vs standard care for HER2 salivary gland cancer
This Phase 2 trial tests how well ado-trastuzumab emtansine (and compares to two standard treatment options) works for salivary gland cancers that are HER2-positive or HER2-low. It aims to see whether the study drug can control cancer better and with acceptable side effects.
Duarte, CaliforniaAges 18 years+ - NCT07063745RecruitingPhase 2/Phase 3
Comparing a new drug combo for advanced lung cancer with a specific gene change
This trial tests a new drug called Navlimetostat combined with pembrolizumab and chemotherapy versus a placebo with the same standard treatments. It is for people with metastatic non-small cell lung cancer that has a specific missing gene (MTAP deletion) and who have not had prior treatment for their advanced disease.
Los Alamitos, CaliforniaAges 18 years+ - NCT06445062RecruitingPhase 1/Phase 2
Study of new RAS inhibitors for GI solid tumors
This trial tests new drugs that target specific RAS mutations in advanced gastrointestinal cancers, like pancreatic or colorectal cancer. It aims to see if these drugs can shrink tumors or slow their growth.
La Jolla, CaliforniaAges 18 years+ - NCT05024929Recruiting
Test targeted drugs to help radioactive iodine reach thyroid cancer
This study looks at whether certain cancer “targeted therapy” medicines can make radioactive iodine (RAI) therapy work better for thyroid cancer that has spread to the lungs. It also involves taking special whole-body scans to measure how much radioactive iodine gets taken up by the cancer.
San Francisco, CaliforniaAges birth+ - NCT06974110RecruitingPhase 1
Study of a new drug for advanced solid tumors with MSI-H or dMMR
This trial tests an oral medication called MOMA-341 in people with advanced solid tumors that have high microsatellite instability (MSI-H) or mismatch repair deficiency (dMMR). It aims to see if the drug can help when prior immunotherapy hasn't worked or isn't available.
San Diego, CaliforniaAges 18 years+ - NCT03723928Recruiting
Blood test–guided monitoring for metastatic breast cancer treatment
This study checks whether specific blood “tumor marker” levels can help monitor how hormone receptor–positive, HER2-negative metastatic breast cancer responds to first-line therapy. It uses regular blood tests (and sometimes scans) to see if this marker-based monitoring is useful and reliable.
Irvine, CaliforniaAges 18 years+ - NCT06925737RecruitingPhase 3
Study of I-DXd for metastatic prostate cancer
This study tests a new drug called Ifinatamab Deruxtecan (I-DXd) for people with metastatic prostate cancer that has stopped responding to hormone therapy. It may help by targeting and destroying cancer cells in a different way.
Duarte, CaliforniaAges 18 years+ - NCT04020575RecruitingPhase 1
CAR T cells made from your blood for advanced breast cancer
This Phase 1 trial tests CAR T cells made from your own immune cells to target advanced breast cancer. The cells are designed to recognize a specific cancer marker (called MUC1*), with the goal of shrinking tumors or keeping them under control.
Duarte, CaliforniaAges 18 years+ - NCT05398302RecruitingPhase 1
Biopsies during prostate cancer treatment to study resistance
This early study uses image-guided biopsies (small tissue samples taken with imaging) to learn why metastatic prostate cancer may stop responding to PSMA radioligand therapy. The results may help doctors understand resistance and improve future treatments.
Los Angeles, CaliforniaAges Any age - NCT06134232RecruitingPhase 2
Extra sipuleucel-T after Provenge for prostate cancer
This trial tests whether adding one extra infusion of sipuleucel-T (the same drug as Provenge) after the standard three doses can help men with advanced prostate cancer that no longer responds to hormone therapy. It is for men who have already finished their three Provenge infusions and have mild or no symptoms.
Duarte, CaliforniaAges 18 years+ - NCT05361720RecruitingPhase 2
Genetic test to match treatment for advanced kidney cancer
This study looks at genetic (RNA) testing of kidney cancer tissue to help choose the best drug treatment. It may help guide therapy for people with advanced or metastatic clear cell kidney cancer who are starting treatment for the first time.
Duarte, CaliforniaAges 18 years+
Metastatic Cancer trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting metastatic cancer studies listed above.
- City of Hope Comprehensive Cancer Center · 10 studies
- City of Hope Orange County Lennar Foundation Cancer Center · 4 studies
- University of California, Irvine Medical Center / UC Irvine Health · 4 studies
- UC San Diego Moores Cancer Center · 3 studies
- University of California, San Francisco · 3 studies
- Cedars-Sinai Medical Center · 2 studies
- Chao Family Comprehensive Cancer Center · 2 studies
- Kaiser Permanente Riverside Medical Center · 2 studies
What taking part in a metastatic 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.
Metastatic Cancer trials in other states
Common questions
- Are there metastatic cancer clinical trials in California?
- Yes. We're currently tracking 364 recruiting metastatic 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 metastatic 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 metastatic 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 metastatic 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.