Clinical trials · California
Glioblastoma clinical trials in California
We’re tracking 42 recruiting glioblastoma studies with a site in California — including Phase 1, Phase 1/Phase 2, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06283927Recruiting
Surgery vs. medical care for recurrent glioblastoma
This trial compares surgery to the best non-surgical treatment for people whose glioblastoma has come back. The goal is to see which approach helps people live longer with a better quality of life.
San Francisco, CaliforniaAges 18–90 - NCT06146725Recruiting
Resection vs. biopsy in high-grade glioma patients
This study compares whether having surgery to remove as much of the tumor as possible (resection) or just taking a small sample (biopsy) leads to better outcomes for people with a fast-growing brain tumor (high-grade glioma). The goal is to help guide treatment decisions.
San Francisco, CaliforniaAges 18–90 - NCT06273176Recruiting
Surgery with or without brain mapping for recurrent glioblastoma
This study is testing whether using a special brain-mapping technique during surgery helps people with recurrent glioblastoma. It compares standard surgery to surgery with mapping to see if it leads to better outcomes for tumors near important brain areas.
San Francisco, CaliforniaAges Up to 90 years - NCT07089641RecruitingPhase 1
Study of ERAS-801 for recurrent or newly diagnosed glioblastoma with EGFR changes
This trial tests an experimental drug called ERAS-801 for people with a type of brain cancer called glioblastoma or gliosarcoma that has a specific genetic change (EGFR amplification or mutation). The study has two groups: one for people whose tumor has come back after treatment, and another for older adults (70+) who are newly diagnosed. The drug targets the EGFR pathway, which may help slow tumor growth.
Los Angeles, CaliforniaAges 18 years+ - NCT06146738Recruiting
Palliative care vs. surgery for high-grade glioma patients
This study compares receiving palliative care (supportive treatments) versus surgery (removing the tumor) for people with a high-grade glioma, a fast-growing brain tumor. The goal is to find out which approach improves quality of life and survival.
San Francisco, CaliforniaAges 18–90 - NCT06118723Recruiting
Supramaximal vs maximal surgery for brain tumors
This trial compares removing as much tumor as safely possible (supramaximal resection) with standard maximal resection in people with high-grade glioma (an aggressive brain tumor). The goal is to see if more extensive removal improves survival and quality of life.
San Francisco, CaliforniaAges 18–90 - NCT06090903Recruiting
MRI Study to Understand Glioblastoma Biology Before Surgery
This study uses MRI scans to learn more about the biology of glioblastoma before and after surgery. It may help doctors understand how the tumor behaves and improve future treatments.
Los Angeles, CaliforniaAges 18 years+ - NCT07452458RecruitingPhase 3
Pulsed vs standard radiation for newly diagnosed glioblastoma
This trial tests a new way of giving radiation therapy (pulsed) compared to standard radiation for people with a specific type of glioblastoma (IDH wildtype, MGMT unmethylated). The goal is to see if the pulsed approach helps with thinking and memory while still treating the tumor.
Orange, CaliforniaAges 18 years+ - NCT07326566RecruitingPhase 2
Silevertinib and chemo for a type of glioblastoma
This trial tests a new drug, silevertinib, combined with temozolomide (a chemotherapy) for people with a newly diagnosed glioblastoma that has certain genetic markers. It aims to see if this combination works better than standard treatment for tumors with these specific features.
La Jolla, CaliforniaAges 18 years+ - NCT06186401RecruitingPhase 1
Experimental immune cell therapy for a specific type of brain cancer
This trial tests a personalized immune cell treatment for a glioblastoma brain tumor that has a specific marker called EGFRvIII. The cells are made in a lab and given by infusion, and the study aims to see if they can safely target and attack the tumor.
San Francisco, CaliforniaAges 18 years+ - NCT06176066RecruitingPhase 1
MRI-guided surgery for glioblastoma
This trial is testing a new way to find and remove glioblastoma brain tumors using a special MRI scan. It may help doctors remove more of the tumor safely during surgery.
Los Angeles, CaliforniaAges 18 years+ - NCT05303467RecruitingPhase 1
Safety study of a glioblastoma device for recurring tumors
This early study tests whether a device called TheraSphere is safe when delivered into the brain to treat recurrent glioblastoma. It may help patients by trying a targeted treatment approach, while doctors carefully monitor side effects and safety.
San Diego, CaliforniaAges 18 years+ - NCT04708171Recruiting
Compare awake, asleep, or no mapping during brain tumor surgery
This study looks at whether surgeons get better safety and control during glioblastoma removal by using awake testing, asleep testing, or no mapping. Mapping helps identify brain areas involved in movement, speech, or vision to lower the risk of serious side effects.
San Francisco, CaliforniaAges 18–90 - NCT07775534Recruiting
Tear fluid test for glioblastoma detection
This study looks at tear fluid to find tiny particles released by glioblastoma tumors, which could offer a new way to monitor the disease. Participation involves a simple, non-invasive tear collection with a small paper strip.
Duarte, CaliforniaAges 18 years+ - NCT07461948RecruitingPhase 3
Advanced imaging study for glioblastoma patients
This trial uses special MRI scans and a contrast agent to look at the immune environment of glioblastoma tumors. It may help doctors learn more about how the tumor responds to treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT07145112RecruitingPhase 1
Laser therapy and lomustine for recurrent glioblastoma
This trial combines laser heat therapy (LITT) with the chemotherapy drug lomustine (CCNU) for people whose glioblastoma has returned. It aims to see if the combination is safe and effective.
Sacramento, CaliforniaAges 18 years+ - NCT06934889RecruitingPhase 1
Study of investigational drugs with ERAS-801 for glioblastoma
This trial tests two new investigational drugs (ABBV-637, ABBV-155) combined with another drug (ERAS-801) for people with glioblastoma. The goal is to see if this combination can shrink the tumor or slow its growth. You need to have a specific genetic marker (EGFR amplification) in your tumor to be eligible.
Los Angeles, CaliforniaAges 18 years+ - NCT06860594RecruitingPhase 1
Triapine plus radiation for recurrent brain tumors
This trial tests whether adding an experimental drug called triapine to a second round of radiation therapy can help treat brain tumors that have come back after initial treatment. It may be a good option for people with recurrent glioblastoma or astrocytoma who meet safety criteria.
Duarte, CaliforniaAges 18 years+ - NCT06805305RecruitingPhase 2
Immunotherapy for newly diagnosed glioblastoma
This trial tests a new personalized immunotherapy (DOC1021) for people with newly diagnosed glioblastoma. The treatment uses your own immune cells to attack the tumor and is given after surgery and with standard chemotherapy and radiation.
Newport Beach, CaliforniaAges 18 years+ - NCT06815029RecruitingPhase 1
Modified immune cells for recurrent brain cancer
This trial tests a new treatment using your own immune cells that are genetically modified to find and attack brain tumor cells. It is for people with a type of brain cancer that has come back after standard therapy.
Duarte, CaliforniaAges 18 years+ - NCT06556563RecruitingPhase 3
Optune with chemo and immunotherapy for new glioblastoma
This trial tests whether adding the Optune device (a wearable electric field therapy) to standard chemotherapy (temozolomide) and the immunotherapy drug pembrolizumab can help people with newly diagnosed glioblastoma live longer. You may be able to join if you've completed initial radiation and chemo, and have not received certain immunotherapies before.
Palo Alto, CaliforniaAges 18 years+ - NCT06504381RecruitingPhase 1/Phase 2
DB107 and radiation therapy for high-grade glioma
This trial tests a new two-part treatment (DB107-RRV and DB107-FC) combined with radiation, with or without the chemotherapy drug temozolomide, for people with newly diagnosed high-grade glioma. It aims to see if this approach is safe and effective.
San Francisco, CaliforniaAges 18 years+ - NCT06069726RecruitingPhase 2
Testing atezolizumab for recurrent glioblastoma
This trial tests whether the immunotherapy drug atezolizumab can help people with glioblastoma that has come back after initial treatment. You will need to have a biopsy before starting the drug to confirm the tumor has returned.
San Francisco, CaliforniaAges 18 years+ - NCT06059690RecruitingPhase 1/Phase 2
Imaging brain tumors to guide glioblastoma treatment
This trial studies a special imaging scan that combines MRI and PET to find active tumor areas in patients with glioblastoma. It aims to see if the scan can help identify the most aggressive parts of the tumor for surgery.
Los Angeles, CaliforniaAges 18 years+
Glioblastoma trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting glioblastoma studies listed above.
- University of California, San Francisco · 9 studies
- City of Hope · 4 studies
- UCLA Jonsson Comprehensive Cancer Center · 3 studies
- University of California, Davis · 3 studies
- UC Irvine Health/Chao Family Comprehensive Cancer Center · 2 studies
- UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care · 2 studies
- University of California · 2 studies
- University of California San Diego · 2 studies
What taking part in a glioblastoma 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.
Glioblastoma trials in other states
Common questions
- Are there glioblastoma clinical trials in California?
- Yes. We're currently tracking 42 recruiting glioblastoma 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 glioblastoma 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 glioblastoma 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 glioblastoma 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.