Clinical trials · California
Down Syndrome clinical trials in California
We’re tracking 263 recruiting down syndrome studies with a site in California — including 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
- NCT04527445Recruiting
Test to use less X-ray during sacral nerve lead placement
This trial studies whether doctors can place a sacral neuromodulation lead using fewer X-rays. If you’re getting this procedure for overactive bladder, it may help reduce radiation exposure while still guiding correct lead placement.
Loma Linda, CaliforniaAges 18–89 - NCT04256317RecruitingPhase 2/Phase 3
Azacitidine pills with or without venetoclax for certain blood cancers
This study tests whether a pill form of azacitidine (ASTX030) helps people with myelodysplastic syndromes (MDS), CMML, or AML. Some groups may also receive venetoclax; the goal is better blood cancer control for people who aren’t good candidates for intensive chemotherapy.
Los Angeles, CaliforniaAges 18 years+ - NCT04093570Enrolling by invitationPhase 2
Extension study for people continuing ASTX727 from a prior trial
This study checks whether continuing ASTX727 for people who already benefited from it in an earlier Taiho study is safe and effective. It may be an option if you stayed on ASTX727 at the end of your parent study and your doctor felt it was helping you.
Fountain Valley, CaliforniaAges 18 years+ - NCT04064060RecruitingPhase 3
Long-term safety follow-up for luspatercept study participants
This trial studies the long-term safety of luspatercept (ACE-536) in people who already took part in an earlier luspatercept study. It mainly helps doctors better understand ongoing side effects and overall safety over time.
Los Angeles, CaliforniaAges 18 years+ - NCT04144972Recruiting
Closed-loop deep brain stimulation for long-lasting nerve pain
This trial tests a “smart” deep brain stimulation device that senses your brain signals and adjusts treatment to reduce severe, long-lasting pain. It may help people whose pain has not improved with multiple pain medicines and surgery cannot fix the cause.
San Francisco, CaliforniaAges 22–80 - NCT03949855RecruitingPhase 2
Belimumab plus rituximab for primary membranous nephropathy
This study tests whether adding belimumab to rituximab helps people with primary membranous nephropathy (a kidney disease) that has the right blood test marker and specific protein levels. The goal is to improve kidney outcomes and reduce disease activity while keeping treatment safe.
Stanford, CaliforniaAges 18–75 - NCT03952299RecruitingPhase 3
Oxybutynin patch after bladder surgery for children’s urgency pain
This study tests whether an oxybutynin skin patch after bladder surgery can reduce bladder pain and urgent, frequent urination in children. It compares symptoms after surgery to see if the patch helps more than the control plan.
Sacramento, CaliforniaAges 4–8 - NCT03816345RecruitingPhase 1
Nivolumab for advanced cancer with autoimmune disease
This trial tests whether the immunotherapy drug nivolumab can safely treat advanced cancer in people who also have an autoimmune disease like rheumatoid arthritis, lupus, or multiple sclerosis. It aims to find out if the drug may help control cancer while managing their autoimmune condition.
Palo Alto, CaliforniaAges 18 years+ - NCT03802695RecruitingPhase 1
Orca-Q pill to help during stem cell transplant
This Phase 1 trial studies Orca-Q to see if it is safe and works when added around the time of an allogeneic (donor) stem cell transplant for certain blood cancers. If you qualify, the study may offer a new option for managing the transplant immune response.
Stanford, CaliforniaAges 12–78 - NCT03876223Recruiting
Testing imaging to study heart symptoms without blocked arteries
This trial studies people who have heart-related symptoms but do not have clear blocked heart arteries, using special heart imaging. It may help researchers better understand early forms of heart weakness (with preserved pumping function) and improve how these conditions are diagnosed.
Los Angeles, CaliforniaAges 18 years+ - NCT03604835Recruiting
MPS VII monitoring program for patients and caregivers
This trial enrolls people with mucopolysaccharidosis type VII (MPS VII) to track their health over time. It may help your care team better understand how the condition behaves and how monitoring should be done.
Orange, CaliforniaAges Any age - NCT03530852Recruiting
RELIZORB test for children needing tube feeding and IV nutrition
This study tests whether RELIZORB helps children with short bowel syndrome (SBS), who rely on IV nutrition (and also tube feeding), absorb fats better. It is an open-label study over 90 days, meaning everyone gets the study treatment and outcomes are compared over time.
Los Angeles, CaliforniaAges 2–18 - NCT03385876Enrolling by invitation
Rapid whole genome sequencing for children with suspected genetic illness
This study quickly reads a child’s DNA using whole genome sequencing to look for genetic causes of symptoms. It may help families and doctors better understand an underlying genetic condition and guide medical care.
San Diego, CaliforniaAges Any age - NCT03011814RecruitingPhase 1/Phase 2
Durvalumab plus lenalidomide for relapsed T-cell lymphoma
This study tests a combination of two drugs—durvalumab (an immunotherapy) and lenalidomide (a targeted therapy)—to see if they are safe and effective for people with T-cell lymphoma that has come back or not responded to treatment. It aims to harness your immune system to fight the cancer while also attacking the cancer cells directly.
Duarte, CaliforniaAges 18 years+ - NCT02646839Enrolling by invitationPhase 2
Testing a gene-matched transplant approach for childhood leukemia
This trial studies a specific type of partially matched (haploidentical) stem cell transplant in children with ALL, AML, or MDS. It looks at whether using certain immune system gene patterns (KIR) and measuring leftover disease after treatment can improve outcomes and cost-effectiveness.
Oakland, CaliforniaAges Up to 21 years - NCT01429389Recruiting
Testing genetic samples in pregnancy to check chromosome changes
This study collects genetic samples from pregnant people who have a higher chance of chromosome changes in the baby. It tests whether taking samples through CVS and/or amniocentesis can help understand the baby’s genetic makeup.
San Diego, CaliforniaAges 18 years+ - NCT02074839RecruitingPhase 1
Oral AG-120 for advanced blood cancers with an IDH1 mutation
This Phase 1 study tests an oral medicine called AG-120 in adults with advanced blood cancers that have a specific IDH1 mutation. It also looks at safety and how the treatment works, with frequent blood, urine, and bone marrow samples.
Los Angeles, CaliforniaAges 18 years+ - NCT00358943Recruiting
Gaucher disease registry and pregnancy tracking study
This study creates a large, long-term record of people with Gaucher disease and details about pregnancy outcomes. It helps researchers better understand Gaucher over a person’s life and during pregnancy.
Beverly Hills, CaliforniaAges Any age - NCT00912041Recruiting
Test of a brain-to-computer device for quadriplegia
This study tests whether a tiny brain computer interface can help people with quadriplegia (loss of movement in all four limbs) communicate or control technology. It’s mainly a feasibility study, meaning the goal is to see if the device can work safely and reliably in real life.
Stanford, CaliforniaAges 18–80 - NCT00315380Recruiting
Study following people with eosinophilic granulomatosis with polyangiitis
This study looks at the health course of people who have eosinophilic granulomatosis with polyangiitis, a rare inflammatory condition. Your participation may help researchers better understand how the illness changes over time.
San Diego, CaliforniaAges Any age - NCT00305305Recruiting
Brain development study for rare brain conditions
This study looks at how the brain develops in people with certain rare conditions that affect brain structure. It may help researchers understand these conditions better and could lead to improved care.
San Francisco, CaliforniaAges Any age - NCT01209000Recruiting
Study for children with new kidney protein loss
This study is for children (and some newly diagnosed patients) who have nephrotic syndrome—kidneys leaking a lot of protein. It aims to better understand the kidney condition (sometimes using biopsy) and support future care decisions.
Los Angeles, CaliforniaAges Up to 80 years - NCT01186913Enrolling by invitation
Natural history study for severe combined immune deficiency (SCID)
This study follows children and adults with SCID and related immune disorders to understand how the illness behaves over time. It also helps researchers learn which testing results and genetic types of SCID match different treatment plans.
Palo Alto, CaliforniaAges Any age
Down Syndrome trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting down syndrome studies listed above.
- University of California, San Francisco · 4 studies
- Children's Hospital Los Angeles · 3 studies
- City of Hope · 3 studies
- Cedars-Sinai Medical Center · 2 studies
- Children's Hospital of Orange County · 2 studies
- Stanford Health Care · 2 studies
- Stanford University School of Medicine · 2 studies
- UC San Diego Health · 2 studies
What taking part in a down syndrome 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.
Down Syndrome trials in other states
Common questions
- Are there down syndrome clinical trials in California?
- Yes. We're currently tracking 263 recruiting down syndrome 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 down syndrome 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 down syndrome 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 down syndrome 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.