Clinical trials · California
Pregnancy, High Risk clinical trials in California
We’re tracking 45 recruiting pregnancy, high risk 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
- NCT06440850RecruitingPhase 2
Targeted therapy for high-risk BRAF-mutated thyroid cancer
This trial tests two targeted drugs, vemurafenib and cobimetinib, for people with high-risk thyroid cancer that has a specific BRAF V600E mutation. The goal is to see if this combination can help prevent the cancer from coming back after surgery or other initial treatments.
Duarte, CaliforniaAges 18 years+ - NCT05794958RecruitingPhase 1
Safety of second CAR-T re-infusion for hard-to-treat lymphoma
This Phase 1 study tests whether a second re-infusion of axicabtagene ciloleucel (CAR-T) is safe in people with aggressive B-cell non-Hodgkin lymphoma that came back or did not respond after standard second-line CAR-T. It may help some patients by trying to improve disease control while carefully monitoring side effects.
Palo Alto, CaliforniaAges 18 years+ - NCT06172296RecruitingPhase 3
Dinutuximab plus transplant for high-risk neuroblastoma
This trial tests adding a targeted drug called dinutuximab to standard chemotherapy, surgery, and a stem cell transplant for children and young adults with a new diagnosis of high-risk neuroblastoma. The goal is to see if this combination helps more patients stay in remission.
Downey, CaliforniaAges Up to 30 years - NCT05941520RecruitingPhase 2
Acolbifene vs low-dose tamoxifen to prevent breast cancer
This Phase 2 trial compares acolbifene and low-dose tamoxifen to see which better lowers breast cancer risk in premenopausal women at high risk. You would be followed with health visits, blood tests, and a breast tissue sampling procedure.
Duarte, CaliforniaAges 35 years+ - NCT05806515RecruitingPhase 2
Carboplatin before surgery for high-risk BRCA prostate cancer
This trial tests giving the chemotherapy drug carboplatin before surgery to treat people with high-risk prostate cancer and an inherited BRCA1 or BRCA2 gene change. The goal is to shrink or control the cancer before an operation and improve outcomes.
Carmichael, CaliforniaAges 18 years+ - NCT05775471RecruitingPhase 2
Check PD-1 plus enfortumab after kidney-urine-duct surgery
This Phase 2 study tests giving pembrolizumab (an immune therapy) and enfortumab vedotin (an antibody-drug medicine) before and after surgery to remove high-risk upper urinary tract cancer. The goal is to lower the chance the cancer comes back.
Los Angeles, CaliforniaAges 18 years+ - NCT05040360RecruitingPhase 2
Chemotherapy after surgery for high-risk pancreatic NET tumors
This Phase 2 trial studies whether giving chemotherapy after surgery can lower cancer recurrence risk in people with high-risk pancreatic neuroendocrine tumors (NETs). It may help you by testing an added treatment after the tumor has been removed.
Buena Park, CaliforniaAges 18 years+ - NCT05489887RecruitingPhase 2
Naxitamab with frontline chemotherapy for high-risk neuroblastoma
This Phase 2 trial tests whether adding a drug called naxitamab to standard early (frontline) treatment improves outcomes for children with high-risk neuroblastoma. It may help by helping the immune system better target the cancer during initial induction therapy.
San Diego, CaliforniaAges 1–21 - NCT05334784Enrolling by invitation
Heart pump study for planned high-risk heart stent procedures
This study looks at using a temporary heart pump called Impella ECP during planned high-risk heart stent procedures (PCI). It may help doctors support the heart more safely while placing the stents.
Glendale, CaliforniaAges 18–90 - NCT04836390Enrolling by invitationPhase 2
Donor immune cell treatment after transplant for high-risk AML
This trial tests an additional immune therapy made from donor natural killer (NK) cells given around the time of a special stem cell transplant for children and young adults with high-risk acute myeloid leukemia (AML). It aims to help prevent the leukemia from coming back or not responding after transplant.
Los Angeles, CaliforniaAges birth–25 years - NCT04696029RecruitingPhase 2
DFMO to prevent return of high-risk or relapsed medulloblastoma
This Phase 2 study tests DFMO (a maintenance medicine) to help stop medulloblastoma from coming back or worsening after prior treatment. It focuses on children and young people with specific high-risk tumor types or tumors that have returned or not responded well to treatment.
Sacramento, CaliforniaAges Up to 21 years - NCT04752722RecruitingPhase 1/Phase 2
Gene therapy for bladder cancer that came back after BCG
This study tests a new gene therapy (EG-70) given directly into the bladder for people with a high-risk bladder cancer called NMIBC. It may be an option if BCG treatment stopped working, or if you cannot have or choose not to have bladder removal surgery.
Irvine, CaliforniaAges 18 years+ - NCT04269902RecruitingPhase 3
Early treatment check for high-risk CLL/SLL
This Phase 3 trial studies an early treatment approach for people with high-risk CLL or SLL who have not yet needed standard therapy. It aims to see if treating earlier can improve outcomes while keeping side effects manageable.
Anaheim, CaliforniaAges 18 years+ - NCT04333706RecruitingPhase 1/Phase 2
Sarilumab plus capecitabine for certain breast cancers
This trial studies whether adding sarilumab to capecitabine can shrink or control metastatic or high-risk breast cancer that lacks HER2 and is either triple-negative or hormone-resistant. It aims to find a safe dose first, then look at how well the treatment works compared with historical results.
Los Angeles, CaliforniaAges 18–99 - NCT04031677RecruitingPhase 3
Surgery with or without chemotherapy for high-risk retroperitoneal sarcoma
This trial studies whether adding chemotherapy before surgery helps people with high-risk retroperitoneal (abdominal-area) leiomyosarcoma or liposarcoma. The goal is to improve outcomes while comparing surgery alone versus surgery plus neoadjuvant chemotherapy.
Duarte, CaliforniaAges 18 years+ - NCT03959085RecruitingPhase 3
Inotuzumab plus chemotherapy for high-risk childhood leukemia
This Phase 3 trial tests whether adding inotuzumab to standard post-induction chemotherapy improves outcomes for children and young teens with high-risk B-ALL, mixed phenotype acute leukemia (MPAL), or certain high-risk B-LLy. It may help by targeting leukemia cells more directly, but participation depends on specific age, lab results, and medical history rules.
San Diego, CaliforniaAges 12 months–25 years - NCT03937635RecruitingPhase 3
Lenalidomide and dexamethasone, with or without daratumumab
This phase 3 trial studies whether lenalidomide plus dexamethasone can prevent or delay progression of “high-risk smoldering” multiple myeloma, and whether adding daratumumab improves outcomes. It’s meant for people who are not yet showing symptoms, but whose lab and scan results suggest higher risk.
Dublin, CaliforniaAges 18 years+ - NCT03729115Recruiting
Enhanced breast cancer screening for high-risk women
This study tests a more thorough breast cancer screening program using MRI and other imaging for women at high risk. It aims to detect cancer earlier, which may improve treatment options and outcomes.
Sacramento, CaliforniaAges 25 years+ - NCT03113643RecruitingPhase 1
SL-401 with standard drugs for hard-to-treat blood cancers
This Phase 1 study tests SL-401, given with azacitidine and sometimes venetoclax, to treat acute myeloid leukemia (AML), high-risk myelodysplastic syndrome (MDS), or blastic plasmacytoid dendritic cell neoplasm (BPDCN). It aims to find a safe dose and see whether the combination can improve blood cancer control.
Duarte, CaliforniaAges 18 years+ - NCT06533098RecruitingPhase 3
Nipocalimab vs IVIG for FNAIT in pregnancy
This study tests a new medicine called nipocalimab compared to standard IVIG treatment for pregnant women who are at risk of a serious condition where the mother's antibodies attack the baby's platelets (FNAIT). The goal is to see if nipocalimab can prevent complications like bleeding in the baby.
Sacramento, CaliforniaAges 18–45 - NCT07725250Recruiting
AI-guided blood pressure trial for stage I-II hypertension
This study tests whether combining artificial intelligence with personalized medicine can help lower blood pressure in people with stage I or II hypertension (140/90 or higher). If you have high blood pressure and can walk without help, this trial may be for you.
La Jolla, CaliforniaAges 18 years+
Pregnancy, High Risk trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting pregnancy, high risk studies listed above.
- City of Hope · 8 studies
- UC San Diego Moores Cancer Center · 5 studies
- Mercy Cancer Center - Elk Grove · 4 studies
- Mercy Cancer Center - Rocklin · 4 studies
- Mercy Cancer Center - Sacramento · 4 studies
- Mercy San Juan Medical Center · 4 studies
- Mission Hope Medical Oncology - Arroyo Grande · 4 studies
- Mission Hope Medical Oncology - Santa Maria · 4 studies
What taking part in a pregnancy, high risk 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.
Pregnancy, High Risk trials in other states
Common questions
- Are there pregnancy, high risk clinical trials in California?
- Yes. We're currently tracking 45 recruiting pregnancy, high risk 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 pregnancy, high risk 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 pregnancy, high risk 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 pregnancy, high risk 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.