Clinical trials · California
Metastatic Cancer clinical trials in California
We’re tracking 373 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
- NCT06630845Recruiting
Comparing two whole-body scan methods for metastatic cancer
This trial tests whether a newer type of MRI scan (called whole-body DWI) can work as well as a standard PET/CT scan (called FDG PET) for finding and monitoring cancer that has spread. If you have metastatic cancer and already have a scheduled PET/CT or other scan, you may be able to get both scans done, helping researchers compare the two methods.
San Francisco, CaliforniaAges 18 years+ - NCT06136624RecruitingPhase 3
Comparing a new drug to standard hormone therapy for advanced prostate cancer
This trial tests a new pill, opevesostat, against other hormone treatments for men with metastatic castration-resistant prostate cancer that has progressed after previous therapies. It aims to see which approach works better.
Orange, CaliforniaAges 18 years+ - NCT05208047RecruitingPhase 3
CGT9486 plus sunitinib for advanced gastrointestinal stromal tumors
This trial tests whether adding a new drug called CGT9486 to sunitinib (a standard cancer drug) works better than sunitinib alone for gastrointestinal stromal tumors (GISTs) that have grown or spread. You may qualify if your GIST stopped responding to or caused problems with imatinib, an earlier treatment.
San Diego, CaliforniaAges 18 years+ - NCT04621435RecruitingPhase 1
PET imaging test for solid tumors using FAP-2286
This Phase 1 study tests a special imaging scan (using FAP-2286) to see solid tumors in people who have already been diagnosed. It may help doctors better detect where cancer is in the body and how to plan treatment.
San Francisco, CaliforniaAges 18 years+ - NCT05646862RecruitingPhase 3
Comparing two treatments for advanced breast cancer with a PIK3CA mutation
This trial tests whether a new drug combo (inavolisib plus fulvestrant) works better than an existing one (alpelisib plus fulvestrant) for people with a specific type of advanced breast cancer that has a PIK3CA mutation. It aims to find a treatment that may help control the cancer longer.
Los Angeles, CaliforniaAges 18 years+ - NCT05372614RecruitingPhase 1
Testing trastuzumab deruxtecan and neratinib for HER2-positive cancers
This trial tests a combination of two targeted drugs, trastuzumab deruxtecan (Enhertu) and neratinib, for people with solid tumors that have a HER2 gene change. The goal is to see if the combination is safe and works well for cancers that have not responded to at least one prior treatment.
Duarte, CaliforniaAges 18 years+ - NCT05361174RecruitingPhase 1/Phase 2
Testing an IOV-4001 infusion for advanced melanoma or lung cancer
This trial studies how well and how safely an infusion called IOV-4001 works in adults with advanced melanoma or non-small-cell lung cancer that cannot be removed with surgery. It also aims to see what side effects occur and whether the treatment can help control the cancer.
Los Angeles, CaliforniaAges 18–70 - NCT07357597RecruitingPhase 4
Preventing mouth sores during breast or lung cancer treatment
This trial tests whether a steroid mouthwash can prevent mouth sores caused by the drug Datopotamab Deruxtecan (Dato-DXd). It is for people with certain types of advanced breast cancer or lung cancer who are about to start Dato-DXd for the first time.
Glendale, CaliforniaAges 18 years+ - NCT07106762RecruitingPhase 2/Phase 3
Study of new targeted drug vs chemo for bladder cancer
This trial tests a new drug called Izalontamab Brengitecan (a targeted therapy that delivers chemo straight to cancer cells) against standard platinum chemotherapy for people whose bladder cancer worsened after immunotherapy. It may be an option if you are fit for chemo but haven't had platinum chemo recently.
Fullerton, CaliforniaAges 18 years+ - NCT04363164RecruitingPhase 2
Testosterone then enzalutamide to stop prostate cancer spread
This Phase 2 trial tests whether giving testosterone first, then enzalutamide (a prostate cancer hormone-blocking pill), can slow or prevent worsening metastatic prostate cancer. It is designed for men whose cancer progressed despite ongoing hormone-suppression treatment.
San Diego, CaliforniaAges 18–90 - NCT07062354Enrolling by invitationPhase 2
Study of amivantamab plus chemo for head and neck cancer
This trial tests a new drug (amivantamab) combined with two chemotherapy drugs (carboplatin and paclitaxel) for people with head and neck cancer that has spread or come back after treatment and cannot be removed by surgery. This study aims to see if this combination can help shrink tumors.
Irvine, CaliforniaAges 18 years+ - NCT07284849RecruitingPhase 3
Testing a new drug combo for advanced colorectal cancer
This trial tests whether adding an experimental drug (INCA33890) to standard chemotherapy and bevacizumab helps people with a certain type of advanced colorectal cancer. It is for those whose cancer has spread and has not been treated yet with systemic therapy.
Fountain Valley, CaliforniaAges 18 years+ - NCT07062965RecruitingPhase 3
PF-07248144 with fulvestrant for HR+ HER2- advanced breast cancer
This trial tests a new study medicine (PF-07248144) combined with fulvestrant in people with a certain type of advanced breast cancer (HR-positive, HER2-negative) that has worsened after previous treatments. It may be an option if you've already tried a CDK4/6 inhibitor and endocrine therapy.
Camarillo, CaliforniaAges 18 years+ - NCT07028853RecruitingPhase 3
New drug combo for advanced prostate cancer
This study tests whether adding the investigational drug mevrometostat to the standard treatment enzalutamide works better than enzalutamide alone for men with prostate cancer that has spread to other parts of the body (metastatic castration-sensitive prostate cancer). You may benefit if you haven't yet received chemotherapy or similar strong treatments for this stage of cancer.
Porter Ranch, CaliforniaAges 18 years+ - NCT06632977RecruitingPhase 2
Matching targeted treatments to your prostate cancer's genetics
This trial is testing whether matching your cancer's specific genetic changes to a targeted treatment can help control metastatic prostate cancer that has stopped responding to standard hormone therapy and chemotherapy. You may receive a drug, a radioactive treatment, or a combination based on your tumor's molecular profile.
Chico, CaliforniaAges 18 years+ - NCT07413939RecruitingPhase 2/Phase 3
Study of RO7771950 vs tucatinib for HER2-positive breast cancer
This trial tests a new drug, RO7771950, against another drug called tucatinib. Both are given with standard chemotherapy to see which works better for advanced breast cancer that is HER2-positive. People with brain metastases may join.
San Francisco, CaliforniaAges 18 years+ - NCT07619599RecruitingPhase 1
PET Scan to Track Lung Cancer Treatment Response
This study uses a special PET imaging scan to help doctors see how well pembrolizumab (an immunotherapy drug) is working against advanced non-small cell lung cancer. You'll receive the scan along with your regular pembrolizumab treatment and possible radiation therapy to help measure treatment response.
Duarte, CaliforniaAges 18 years+ - NCT05896839RecruitingPhase 1/Phase 2
Immunotherapy with prednisone and sirolimus for transplant skin cancer
This early-phase study tests whether adding immunotherapy (nivolumab and ipilimumab) to prednisone and sirolimus can control advanced skin cancers in people with kidney transplants. It aims to see how well the treatment works and how safe it is for transplant recipients.
La Jolla, CaliforniaAges 18 years+ - NCT07535112RecruitingPhase 1
Study of a new drug for advanced colorectal cancer with KRAS G12D mutation
This trial tests an experimental drug (BAY 3771249) for people with advanced or metastatic colorectal cancer that has a specific genetic change called KRAS G12D. The goal is to see if the drug is safe and if it can help shrink tumors.
Duarte, CaliforniaAges 18 years+ - NCT07222800RecruitingPhase 3
Testing a new drug plus chemo for stage 4 colorectal cancer
This study tests a new experimental drug (PF-08634404) combined with standard chemotherapy for people with stage 4 colorectal cancer who have not yet been treated for their advanced disease. The goal is to see if the combination helps shrink or slow the growth of tumors.
Berkeley, CaliforniaAges 18 years+ - NCT07020806RecruitingPhase 1
New imaging test for invasive lobular breast cancer that has spread
This trial tests a new imaging agent, [68Ga]Ga DOTA-5G, to see if it can better detect invasive lobular breast cancer that has spread to other parts of the body. It involves a PET/CT scan and may help doctors understand the extent of your cancer.
Sacramento, CaliforniaAges 18–89 - NCT06377852RecruitingPhase 3
CDK4/6 inhibitor dosing study for older adults with metastatic breast cancer
This study tests two targeted therapy drugs, palbociclib and ribociclib, combined with hormone therapy for people aged 60 or older with hormone receptor-positive, HER2-negative metastatic breast cancer. The goal is to see how well this treatment works and to gather information that may help improve dosing for older adults.
Eureka, CaliforniaAges 60 years+ - NCT06312176RecruitingPhase 3
Study of new drugs for HR+/HER2- advanced breast cancer
This trial tests two new drugs (sacituzumab tirumotecan and pembrolizumab) against standard treatments for a type of advanced breast cancer that is hormone receptor positive and HER2 negative. It's for people whose cancer has worsened despite hormone therapy with a CDK4/6 inhibitor.
Fullerton, CaliforniaAges 18 years+ - NCT05253651RecruitingPhase 3
Tucatinib plus trastuzumab with chemo for HER2+ metastatic colon cancer
This trial tests whether adding tucatinib and trastuzumab to standard chemotherapy works better than standard treatment alone for people with HER2-positive metastatic colon or rectal cancer. It aims to improve how long people live and how well tumors respond as first treatment for advanced disease.
Pasadena, 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 · 4 studies
- University of California, San Francisco · 4 studies
- Providence Medical Foundation · 3 studies
- UC San Diego Health · 3 studies
- UC San Diego Moores Cancer Center · 3 studies
- University of California, Davis · 3 studies
- University of California, Irvine · 3 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 373 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.