Clinical trials · California
Cancer clinical trials in California
We’re tracking 1,320 recruiting cancer studies with a site in California — including Early Phase 1, 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
- NCT07235280RecruitingEarly Phase 1
Testing dapagliflozin before surgery for early stage lung cancer
This trial tests the safety of dapagliflozin (a diabetes drug) taken before surgery for stage IA lung adenocarcinoma. It may help understand if this drug can slow tumor growth while waiting for surgery.
Los Angeles, CaliforniaAges 22 years+ - NCT07145255RecruitingPhase 1/Phase 2
Study of MBRC-201 for advanced solid tumors
This trial tests a new drug, MBRC-201, for people with advanced solid tumors that have not responded to standard treatments. The goal is to find the best dose and see if it helps shrink tumors or slow their growth.
San Francisco, CaliforniaAges 18 years+ - NCT06633224Recruiting
Fatigue and biology in cancer patients getting chemoradiation
This study looks at why some people feel very tired during cancer treatment. Researchers will collect blood and stool samples to study how the body responds to chemotherapy and radiation.
San Francisco, CaliforniaAges 18 years+ - NCT06582017RecruitingPhase 1
Study of QXL138AM for advanced solid tumors and multiple myeloma
This trial tests an investigational drug called QXL138AM for people with advanced solid tumors or multiple myeloma that has not responded to standard treatments. The goal is to see if the drug is safe and effective.
Los Angeles, CaliforniaAges 18 years+ - NCT06498635RecruitingPhase 3
Immunotherapy after surgery for lung cancer with no remaining cancer
This trial tests whether giving immunotherapy (durvalumab) after surgery can help prevent lung cancer from coming back if you already had a complete response to chemo and immunotherapy before surgery. It is for people with early-stage non-small cell lung cancer who had no cancer left after treatment.
Beverly Hills, CaliforniaAges 18 years+ - NCT06447103RecruitingPhase 2
New scan to find kidney cancer after surgery
This trial tests a special PET scan to see if it can better find leftover kidney cancer after surgery compared to a standard CT scan. You may qualify if you had kidney cancer surgery within the last 4-16 weeks and are at high risk of the cancer coming back.
Los Angeles, CaliforniaAges 18 years+ - NCT06342401Recruiting
Early onset colorectal cancer detection study
This study aims to improve detection of colorectal cancer in people diagnosed before age 50. It compares samples from patients with cancer to those without to find new early detection methods.
Duarte, CaliforniaAges 18–50 - NCT06342440Recruiting
Early detection of colon cancer and advanced polyps
This study aims to find colorectal cancer and advanced polyps (adenomas) earlier by looking at blood samples. Researchers hope a simple blood test might one day help detect colon cancer before it spreads.
Monrovia, CaliforniaAges 18 years+ - NCT06113016RecruitingPhase 2
Preventing frailty with fisetin and exercise in breast cancer survivors
This study tests whether adding a supplement called fisetin to an exercise program can help prevent frailty in women who have finished chemotherapy for early-stage breast cancer. If you are postmenopausal, have completed chemo within the last year, and can walk a certain distance, you may qualify.
Alhambra, CaliforniaAges Any age - NCT05929768RecruitingPhase 3
Shorter chemo plus immunotherapy without anthracyclines for early TNBC
This Phase 3 trial tests whether a shorter course of chemotherapy plus immunotherapy can work as well as standard treatment for early-stage triple-negative breast cancer. It avoids anthracycline drugs and may help reduce exposure to those medicines if the shorter plan is effective and safe.
Walnut Creek, CaliforniaAges 18 years+ - NCT05377996RecruitingPhase 1/Phase 2
Study drug for advanced solid tumors with tumor tissue testing
This early-stage study tests emiltatug leda-dotin (Emi-Le) in people with advanced or recurring solid cancers. It aims to see how the drug works and how safely it can be given, using tumor tissue testing to help understand who may benefit.
Orange, 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 - NCT05136196RecruitingPhase 2
Cabozantinib plus nivolumab for advanced melanoma or head-neck cancer
This trial tests whether combining two immunotherapy medicines—cabozantinib and nivolumab—can shrink advanced melanoma or certain head-and-neck squamous cell cancers. It is mainly for people whose cancer has grown after prior PD-1 treatment.
Beverly Hills, CaliforniaAges 18 years+ - NCT04787744RecruitingPhase 2/Phase 3
Test standard prostate cancer treatment with or without targeted spot radiation
This study tests whether adding targeted local treatment (like radiation to a few spots seen on scans) improves outcomes for some people with limited (oligometastatic) prostate cancer. It compares standard systemic therapy alone versus standard therapy plus PET-scan–guided spot treatment.
Long Beach, CaliforniaAges 18 years+ - NCT06774027Recruiting
Breast cancer antibody-drug conjugate treatment registry
This study tracks how well antibody-drug conjugates (ADCs) work for breast cancer that has spread. You may join if you are about to start your first or second ADC for hormone receptor-positive/HER2-negative or triple-negative breast cancer.
San Francisco, CaliforniaAges 18 years+ - NCT07038343RecruitingPhase 1/Phase 2
Testing a new drug for advanced solid tumors
This trial tests a new drug called AVZO-1418, either alone or with other treatments, for people with advanced solid tumors that have spread or cannot be removed. The goal is to see if the drug is safe and effective against certain types of cancer.
Los Angeles, CaliforniaAges 18–75 - NCT04282044RecruitingPhase 1
CRX100 drug trial for advanced cancers with or without pembrolizumab
This Phase 1 trial tests CRX100 (a new cancer medicine) alone and with pembrolizumab (an immune checkpoint drug) in people with advanced solid tumors. It’s mainly designed to check safety and side effects, and to see whether tumors respond, potentially helping people whose cancer has come back or stopped responding to standard treatment.
Stanford, CaliforniaAges 18 years+ - NCT07790718Recruiting
Exercise program to prevent colorectal cancer after prostate radiation
This study tests whether an exercise program can help prevent colorectal cancer in men who have had pelvic radiation for prostate cancer. It involves using an iPhone app to track activity and attending exercise sessions.
Duarte, CaliforniaAges 40–80 - NCT07745361RecruitingPhase 2
Study of MRT-2359 with apalutamide for prostate cancer
This trial tests a new oral drug, MRT-2359, combined with apalutamide (a standard hormone therapy) in men with a specific type of prostate cancer that has stopped responding to hormone treatment. The goal is to see if the combination can slow or stop the cancer's growth.
Los Angeles, CaliforniaAges 18 years+ - NCT07619313RecruitingPhase 1
AB801 with Chemotherapy and Immunotherapy for Bile Duct or Pancreatic Cancer
This study tests a new drug called AB801 combined with standard chemotherapy and immunotherapy for advanced bile duct cancer (cholangiocarcinoma) or pancreatic cancer. The goal is to see if this combination can shrink tumors and help patients live longer.
Los Angeles, CaliforniaAges 18 years+ - NCT07476287RecruitingPhase 2
Study of PF08634404 plus chemo for transformed small cell lung cancer
This trial tests a new study drug (PF08634404) combined with standard chemotherapy for people whose non-small cell lung cancer has changed into a more aggressive form called small cell lung cancer. It hopes to improve outcomes by targeting the cancer in two ways.
Duarte, CaliforniaAges 18 years+ - NCT07468903Recruiting
Focal radiation for prostate cancer with HDR brachytherapy
This trial tests a targeted radiation treatment called HDR brachytherapy for prostate cancer that hasn't spread. It aims to treat only the cancer spots seen on MRI, which may reduce side effects.
Los Angeles, CaliforniaAges 40 years+ - NCT07462377RecruitingPhase 1
Testing EPI-326 for EGFR-mutant lung and head & neck cancers
This trial tests a new drug, EPI-326, in people with advanced lung or head & neck cancers that have certain EGFR changes. The goal is to see if it is safe and may help shrink the cancer.
Los Angeles, CaliforniaAges 18 years+ - NCT07444814RecruitingPhase 1
HWK-007 for advanced solid tumors
This trial tests a new drug called HWK-007, which is designed to target and attack cancer cells while sparing healthy ones. It is for people with specific advanced solid tumors (lung, endometrial, or ovarian cancer) that have not responded well to standard treatments.
Los Angeles, CaliforniaAges 18 years+
Cancer trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting cancer studies listed above.
- UCLA Jonsson Comprehensive Cancer Center · 6 studies
- City of Hope · 5 studies
- Cedars-Sinai Medical Center · 3 studies
- Tower Cancer Research Foundation · 3 studies
- UC San Diego Moores Cancer Center · 3 studies
- City of Hope at Irvine Lennar · 2 studies
- Hoag Memorial Hospital Presbyterian · 2 studies
- Stanford University · 2 studies
What taking part in a 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.
Cancer trials in other states
Common questions
- Are there cancer clinical trials in California?
- Yes. We're currently tracking 1,320 recruiting 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 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 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 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.