Clinical trials · California
Hematopoietic Stem Cell Transplant clinical trials in California
We’re tracking 53 recruiting hematopoietic stem cell transplant studies with a site in California — including Early Phase 1, Phase 1, Phase 1/Phase 2, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT05508009RecruitingPhase 1/Phase 2
Kidney transplant with donor-matched stem cell treatment
This early-phase trial tests a stem cell transplant from a donor who is an extremely close match, given to people who are about to receive a kidney transplant from the same donor. The goal is to improve how well the new kidney works by resetting the immune system to better accept the transplant.
Palo Alto, CaliforniaAges 1–30 - NCT07582172RecruitingPhase 2
Stem Cell Transplant for Hard-to-Treat Blood Cancers in Older Adults
This trial tests a new combination of radiation and chemotherapy to prepare your body for a stem cell transplant from a matched donor. It's designed for older patients with acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) that hasn't responded well to standard treatments.
Duarte, CaliforniaAges 18 years+ - NCT07573111RecruitingPhase 1
QUAIL-100 for Children With Blood Cancers After Stem Cell Transplant
This study tests a new experimental treatment called QUAIL-100 in children and young adults who have had a stem cell transplant for a serious blood cancer. The treatment is designed to help the immune system fight remaining cancer cells.
Palo Alto, CaliforniaAges 1.5 years–39 years - NCT07365306RecruitingPhase 2
Epcoritamab with chemo before stem cell transplant for DLBCL
This trial tests a combination of drugs — epcoritamab, rituximab, gemcitabine, and oxaliplatin — as a ‘salvage’ therapy for people with diffuse large B-cell lymphoma that has come back or not responded to initial treatment. The goal is to shrink the lymphoma enough so you can go on to a stem cell transplant using your own cells.
Duarte, CaliforniaAges 18 years+ - NCT05855083RecruitingPhase 2
Narsoplimab for high-risk TMA after bone marrow transplant
This trial studies the medicine narsoplimab in children who develop a serious complication called HSCT-TMA after a bone marrow transplant. It aims to improve safety and effectiveness for high-risk cases where the condition is ongoing or causing organ problems.
San Diego, CaliforniaAges 4 weeks–17 years - NCT07269041RecruitingPhase 1/Phase 2
Immune tolerance after liver transplant
This trial tests a way to help your body accept your liver transplant without needing lifelong anti-rejection drugs. It uses your living donor's stem cells to train your immune system to not attack the new liver.
Los Angeles, CaliforniaAges 18 years+ - NCT06462365RecruitingPhase 1
Preventing GvHD after stem cell transplant for blood cancers
This trial tests a new way to prevent graft-versus-host disease (GvHD), a common complication after a stem cell transplant. It is for people with certain blood cancers who are getting a stem cell transplant from a half-matched family member or unrelated donor.
Duarte, CaliforniaAges 18 years+ - NCT07025538RecruitingPhase 1
Preventing chronic graft-versus-host disease with ruxolitinib
This trial tests whether the drug ruxolitinib, given based on a blood test that predicts risk, can prevent chronic graft-versus-host disease (cGVHD) after a stem cell transplant. It may help people who have a higher risk of developing this complication.
Duarte, CaliforniaAges 18 years+ - NCT07020533RecruitingPhase 1
CMV vaccine for stem cell transplant recipients
This trial tests a vaccine designed to boost immunity against CMV (a common virus) and prevent active CMV infection in people receiving a half-matched stem cell transplant. It may help protect you from CMV-related complications after transplant.
Duarte, CaliforniaAges 18–75 - NCT06996119RecruitingPhase 1
Preventing graft-versus-host disease after stem cell transplant
This trial tests adding a drug called emapalumab to standard medications (cyclophosphamide, tacrolimus, mycophenolate mofetil) to prevent graft-versus-host disease in adults receiving a donor stem cell transplant. This approach aims to reduce complications after transplant.
Duarte, CaliforniaAges 18–75 - NCT06938867RecruitingPhase 1/Phase 2
Study of SNIPR001 for stem cell transplant patients
This trial tests an oral treatment called SNIPR001 that targets a type of E. coli bacteria resistant to common antibiotics. It may help prevent infections during stem cell transplant recovery.
Duarte, CaliforniaAges 18 years+ - NCT06905509RecruitingPhase 2
Epcoritamab with chemo and stem cell transplant for large B-cell lymphoma
This trial tests adding epcoritamab (an immune therapy that helps your body fight cancer) to standard chemotherapy followed by a stem cell transplant. It is for people with large B-cell lymphoma that has come back or not responded to initial treatment.
Sacramento, CaliforniaAges 18 years+ - NCT06859424RecruitingPhase 2
Testing a new GVHD prevention method after donor stem cell transplant
This trial tests a new way to prevent graft-versus-host disease (a common side effect of stem cell transplant) using a drug called cyclophosphamide after transplant. It is for adults with certain blood cancers who need a transplant from a partially matched unrelated donor.
Palo Alto, CaliforniaAges 18–66 - NCT06815003RecruitingPhase 2
Preventing Graft-Versus-Host Disease After Stem Cell Transplant
This trial tests a combination of three drugs (vedolizumab, cyclophosphamide, and tacrolimus) to prevent graft-versus-host disease, a common complication after a donor stem cell transplant. It is for people with certain blood cancers who are getting a reduced-intensity transplant.
Duarte, CaliforniaAges 18–80 - NCT06802406Recruiting
Nutrition support for transplant or cell therapy patients
This study tests a program to help patients who are getting a transplant or cell therapy and have trouble getting enough food. It provides nutrition resources to improve their health during treatment.
Stanford, CaliforniaAges 8–80 - NCT06735690RecruitingEarly Phase 1
Immune cells plus vaccine after stem cell transplant for leukemia
This trial is for people with high-risk acute lymphoblastic leukemia who are getting a stem cell transplant from a family donor. After transplant, you'd receive a treatment that combines specially designed immune cells (CAR T cells) that target your leukemia, plus a vaccine that helps those cells work better.
Duarte, CaliforniaAges 18 years+ - NCT06724237RecruitingPhase 3
High-dose chemo and stem cell transplant for T-cell lymphoma patients in remission
This trial tests whether high-dose chemotherapy followed by a stem cell transplant using your own cells can help people with certain types of peripheral T-cell lymphoma live longer. You would qualify if you have already finished your first round of chemotherapy and are in complete remission.
Walnut Creek, CaliforniaAges 18–75 - NCT06665100RecruitingPhase 2
Study of PUL-042 for RSV and Related Viruses in Immune-Compromised Patients
This trial tests an inhaled medicine (PUL-042) for people with blood cancers or who have had a stem cell transplant and now have a respiratory virus (parainfluenza, RSV, or human metapneumovirus). The goal is to see if the drug can help clear the virus and improve symptoms.
Duarte, CaliforniaAges 18 years+ - NCT06287944RecruitingPhase 1
Targeted radiation and chemo before donor stem cell transplant
This trial tests a new approach: giving a targeted radioactive antibody (attached to a drug that finds CD38 on cancer cells) along with low-dose chemotherapy and targeted radiation to the bone marrow before a donor stem cell transplant. The goal is to prepare the body for the transplant while killing remaining cancer cells more precisely.
Duarte, CaliforniaAges 18–70 - 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 - NCT06128070RecruitingPhase 2
Preventing GVHD after stem cell transplant for leukemia
This trial tests adding ruxolitinib to standard drugs (tacrolimus and methotrexate) to prevent graft-versus-host disease in children and young adults undergoing a stem cell transplant for acute leukemia or myelodysplastic syndrome. The goal is to lower the risk of GVHD and improve transplant outcomes.
Duarte, CaliforniaAges 2–22 - NCT06059391RecruitingPhase 2
Vaccine for stem cell donors to prevent CMV
This trial tests whether giving a CMV vaccine to stem cell donors can help protect recipients from CMV infection after transplant. It is for adults with specific blood cancers who are CMV-positive and have a matched related donor.
Duarte, CaliforniaAges 18–75 - NCT06022939RecruitingPhase 3
Comparing chemo plus stem cell transplant to chemo alone for AL amyloidosis
This study tests whether adding a stem cell transplant to standard chemotherapy (Dara-VCD) works better than chemotherapy alone for people newly diagnosed with AL amyloidosis. It aims to find the best way to control the disease and improve outcomes.
Duarte, CaliforniaAges 18 years+ - NCT06028828RecruitingPhase 2
Adapted conditioning for stem cell transplant
This trial tests a risk-adapted conditioning regimen (chemotherapy and/or radiation given before transplant) for people with certain blood cancers or bone marrow disorders who need a stem cell transplant from a donor. The goal is to tailor the conditioning strength to each patient’s risk, which may help improve outcomes and reduce side effects.
Orange, CaliforniaAges 18–70
Where these studies are running in California
Institutions with a site for the recruiting hematopoietic stem cell transplant studies listed above.
- City of Hope · 17 studies
- Lucile Packard Children's Hospital Stanford · 2 studies
- Stanford University · 2 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, Davis · 2 studies
- Bass Medical Group
- Cedars-Sinai Medical Center
What taking part in a hematopoietic stem cell transplant 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.
Hematopoietic Stem Cell Transplant trials in other states
Common questions
- Are there hematopoietic stem cell transplant clinical trials in California?
- Yes. We're currently tracking 53 recruiting hematopoietic stem cell transplant 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 hematopoietic stem cell transplant 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 hematopoietic stem cell transplant 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 hematopoietic stem cell transplant 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.