Clinical trials · California
Sickle Cell Disease clinical trials in California
We’re tracking 27 recruiting sickle cell disease 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
- NCT06439082RecruitingPhase 3
Crizanlizumab for sickle cell pain crises
This trial tests whether crizanlizumab can reduce painful sickle cell crises (called vaso-occlusive crises or VOCs) in people with sickle cell disease who have frequent crises. It may be an option for those who still have crises despite current treatments.
Orange, CaliforniaAges 12–100 - NCT06481306RecruitingPhase 1/Phase 2
Testing a new drug for sickle cell disease in healthy people and patients
This early-phase study tests a new drug (BMS-986470) for people with sickle cell disease who have frequent pain crises. The goal is to see if it can safely reduce crises. It includes a small group of healthy volunteers as well.
La Jolla, CaliforniaAges 18 years+ - NCT06699849RecruitingPhase 2
CSL889 for sickle cell pain crisis
This trial tests a new medicine, CSL889, for people with sickle cell disease who are currently having a pain crisis (vaso-occlusive crisis). The goal is to see if it safely helps reduce the pain and speed recovery.
Oakland, CaliforniaAges 12 years+ - NCT06609226RecruitingPhase 3
Long-term safety study of etavopivat for sickle cell disease or thalassaemia
This study looks at the long-term safety and benefits of taking etavopivat for people with sickle cell disease or thalassaemia who have already been helped by it in a previous trial. It aims to see if staying on the treatment continues to be safe and effective.
Los Angeles, CaliforniaAges 2 years+ - NCT06612268RecruitingPhase 3
Testing etavopivat for sickle cell disease
This study tests an experimental pill called etavopivat for people with sickle cell disease who have had some pain crises in the past year. The goal is to see if it reduces these crisis episodes.
Los Angeles, CaliforniaAges 12 years+ - NCT07224360RecruitingPhase 2
Safety of a new drug for sickle cell pain
This study tests a new medicine called anumigilimab to see if it is safe for people with sickle cell disease. The study focuses on those who have had pain crises recently, to help manage and prevent them.
Orange, CaliforniaAges 18 years+ - NCT02675959RecruitingPhase 2
Transplant with defibrotide for sickle cell disease
This trial tests a stem cell transplant from a half-matched donor using a strong conditioning regimen and a drug called defibrotide to protect organs. It aims to cure sickle cell disease in patients who have had serious complications like stroke, chest syndrome, or frequent pain episodes.
Los Angeles, CaliforniaAges 6 months–21 years - NCT06016634RecruitingPhase 2
Alendronate for bone damage in adults with sickle cell disease
This trial tests if the drug alendronate can help heal bone damage caused by sickle cell disease. It may be an option if you have this bone problem and are between 18 and 80 years old.
Sacramento, CaliforniaAges 18–80 - NCT03279094RecruitingPhase 1
Testing a half-matched bone marrow transplant for sickle cell
This early-phase study tests whether a “half-matched” donor bone marrow transplant, with special medicines to calm the immune system before transplant, can improve outcomes for people with sickle cell disease. It may help high-risk patients who have frequent complications and don’t have a fully matched donor.
Duarte, CaliforniaAges 1–30 - NCT04774536RecruitingPhase 1/Phase 2
CRISPR gene-edited bone marrow transplant for severe sickle cell
This Phase 1/2 study tests a CRISPR-edited bone marrow (stem cell) transplant to treat severe sickle cell disease. It aims to reduce dangerous sickle-related complications by changing the patient’s stem cells before transplant.
Oakland, CaliforniaAges 12–35 - NCT06071377Recruiting
Learning About Health in People With Sickle Cell Trait
This study is for adults who have or might have sickle cell trait (carrying the sickle cell gene but not the disease). It aims to understand the health effects of sickle cell trait over time by following participants and collecting health information.
Loma Linda, CaliforniaAges 18 years+ - NCT06260891RecruitingPhase 2
Zinc study for sickle cell disease and bone health
This study tests if taking zinc supplements can improve bone health in people with sickle cell disease. It's for those with certain types of sickle cell disease (SS or S-Beta zero thalassemia) who are not on chronic transfusions or zinc supplements.
Oakland, CaliforniaAges 15–40 - NCT06374238Recruiting
Peer Support for Young People with Sickle Cell Pain
This study is testing a peer support program for teens and young adults (ages 16–30) with sickle cell disease who have chronic pain. You'll connect with a trained peer supporter through your smartphone to learn pain coping skills and get support.
Los Angeles, CaliforniaAges 16–30 - NCT06385886Recruiting
Study to improve sickle cell care for adults not seeing a specialist
This study helps connect adults with sickle cell disease who haven't seen a specialist in over a year back into care. It tests a program designed to make it easier to get regular medical support and improve your health.
Oakland, CaliforniaAges 18 years+ - NCT06539169Recruiting
Following people with rare diseases over time
This study follows people with rare diseases over time to learn more about how these conditions progress and how they are treated. Joining may help researchers understand your disease better and find better ways to care for others.
Los Altos, CaliforniaAges Any age - NCT06975865RecruitingPhase 3
Rilzabrutinib for sickle-cell disease pain episodes
This study tests an oral medicine called rilzabrutinib to see if it can reduce painful episodes in people with sickle-cell disease. It may be an option if you have regular pain crises and are looking for a new treatment.
Fresno, CaliforniaAges 10–65 - NCT04819841RecruitingPhase 1/Phase 2
Gene correction using your own stem cells to improve sickle disease
This trial tests a gene-correction treatment that changes sickle hemoglobin (HbS) into normal hemoglobin (HbA) using your own stem cells. It may help reduce severe sickle cell complications for people with severe disease who meet specific safety and medical criteria.
Palo Alto, CaliforniaAges 12–50 - NCT07369024RecruitingPhase 2
Study of low-dose ketamine for sickle cell pain crisis
This study tests whether a low-dose of ketamine (a pain medicine) can help children and young adults with sickle cell disease who are in a pain crisis. It aims to provide better pain relief while avoiding some side effects of standard painkillers.
Torrance, CaliforniaAges 5–20 - NCT06363760Enrolling by invitation
Long-term follow-up after EDIT-301 gene therapy
This long-term follow-up study monitors people with sickle cell disease or transfusion-dependent beta-thalassemia who have already received the gene-editing therapy EDIT-301. It helps researchers understand how safe and effective the treatment is over time.
Oakland, CaliforniaAges 12–50 - NCT04628585Enrolling by invitation
Follow-up for people with sickle cell treated with gene therapy
This study is a long-term follow-up for people who already received gene therapy for sickle cell disease in a specific sponsor’s clinical trial. It helps researchers watch for long-term safety and outcomes over time.
Oakland, CaliforniaAges 2–53 - NCT04208529Enrolling by invitationPhase 3
Long-term follow-up after receiving CTX001 infusion
This study follows people for a long time after they received CTX001 in an earlier (parent) study. It helps researchers learn about long-term safety and outcomes of the treatment.
Palo Alto, CaliforniaAges 2 years+ - NCT04398628Recruiting
Study of non-cancer blood disorders in people with bleeding or clotting
This study follows people with inherited or acquired non-cancer blood disorders to better understand symptoms, causes, and how different treatments work over time. You may be placed into a disorder-specific group, depending on your diagnosis and testing results.
Los Angeles, CaliforniaAges Any age - NCT05359991Recruiting
Exercise study in children and teens with lung or blood conditions
This study tests how safe and effective a structured exercise program is for children and teens. It also compares results between children with sickle cell disease, cystic fibrosis, and healthy peers (and some teens after COVID-19 infection).
Irvine, CaliforniaAges 10–17 - NCT05685368RecruitingPhase 1/Phase 2
Therapy groups to help teens cope with sickle cell
This trial tests a structured talk-therapy program called Acceptance and Commitment Therapy (ACT) for teens and young adults with sickle cell disease. It aims to help you manage tough thoughts and feelings and cope with day-to-day challenges over 6 weekly group sessions.
Los Angeles, CaliforniaAges 14–21
Sickle Cell Disease trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting sickle cell disease studies listed above.
- UCSF Benioff Children's Hospital Oakland · 7 studies
- Children's Hospital Los Angeles · 5 studies
- University of California, Irvine Medical Center / UC Irvine Health · 4 studies
- University of California, Los Angeles (UCLA) · 3 studies
- University of California, San Francisco · 3 studies
- Lucile Packard Children's Hospital at Stanford · 2 studies
- The Lundquist Institute at Harbor-UCLA Medical Center · 2 studies
- Center for Inherited Blood Disorders
What taking part in a sickle cell disease 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.
Sickle Cell Disease trials in other states
Common questions
- Are there sickle cell disease clinical trials in California?
- Yes. We're currently tracking 27 recruiting sickle cell disease 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 sickle cell disease 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 sickle cell disease 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 sickle cell disease 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.