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 2, Phase 2/Phase 3 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06684119Recruiting
Testing best breathing tube pressure for children on a ventilator
This trial uses a special imaging tool (EIT) to find the best air pressure in the breathing tube for children on a ventilator. It aims to improve lung function in children with a lung condition called PARDS.
Los Angeles, CaliforniaAges birth–18 years - NCT07391605RecruitingPhase 2
Descartes-08 for treatment-resistant myositis
This trial tests a new treatment called Descartes-08 for people with dermatomyositis or antisynthetase syndrome whose disease hasn't responded well to standard therapies. It aims to see if this treatment can help control muscle and skin symptoms.
Orange, CaliforniaAges 18 years+ - NCT05928052Recruiting
Spinal stimulation to help ARDS patients get off the ventilator
This study tests whether stimulating nerves in the spine can help people with severe lung injury (ARDS) breathe without a ventilator sooner. It may help shorten the time you need a breathing machine in the ICU.
Los Angeles, CaliforniaAges 18 years+ - NCT07302776RecruitingPhase 1
Stopping immune suppression after stem cell transplant
This trial tests whether it's safe to stop one type of anti-rejection medication (tacrolimus) earlier than usual after a stem cell transplant from a matched donor. If you qualify, you may be able to reduce your long-term medication burden.
Palo Alto, CaliforniaAges 18–80 - NCT05386173Recruiting
Tests fetal aortic valve balloon surgery for severe narrowing
This trial studies whether doing a procedure before birth to open a baby’s aortic valve improves outcomes. It compares this approach in a specific group of pregnancies with severe heart flow problems seen on ultrasound.
San Francisco, CaliforniaAges 5 months–7 months - NCT07276542RecruitingPhase 2/Phase 3
Ketamine for phantom limb pain: a six-month outpatient study
This study tests whether ketamine, given as an outpatient treatment, can reduce phantom limb pain over six months. You would come to a clinic for multiple ketamine sessions, with at least a week between each session, and be followed for a year.
Sacramento, CaliforniaAges 18–65 - NCT05960929RecruitingPhase 3
Breathing support for premature babies with lung distress
This Phase 3 trial tests whether InfasurfAero™ (a type of surfactant given as aerosol) works better than a sham treatment in preterm babies with respiratory distress syndrome (RDS). It aims to improve breathing in the first hours of life for babies who need CPAP.
San Diego, CaliforniaAges 7 months–8 months - NCT07227441Recruiting
Chronic Infections and Inflammation in ME/CFS
This study looks at how chronic infections and inflammation affect people with ME/CFS (myalgic encephalomyelitis/chronic fatigue syndrome) compared to healthy people. Researchers want to understand what causes symptoms and find better ways to help.
San Francisco, CaliforniaAges 18 years+ - NCT07221851RecruitingPhase 3
Weekly vs daily growth hormone for short stature in children
This trial tests a weekly growth hormone injection (lonapegsomatropin) compared to the standard daily growth hormone shot in children with short stature due to certain conditions. It aims to see if the weekly shot works as well or better and is safe.
Palo Alto, CaliforniaAges 2–17 - NCT07220187RecruitingPhase 3
Adding pirtobrutinib to usual treatment for newly diagnosed Richter transformation
This study tests whether adding a targeted drug called pirtobrutinib to the usual chemotherapy for Richter transformation can improve outcomes. It is a phase 3 trial, meaning it compares the new combination to the standard approach, and may help patients live longer or delay progression.
Irvine, 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+ - NCT07189234RecruitingPhase 2
Time-restricted eating for better heart health
This trial tests if eating all your meals within a shorter window each day can improve blood sugar, blood pressure, and cholesterol. You may qualify if you have prediabetes or metabolic syndrome and eat over 12 hours daily.
La Jolla, CaliforniaAges 18–75 - NCT07176117Enrolling by invitation
Surfactant via airway device for breathing trouble in newborns
This trial tests if giving surfactant (a natural substance that helps lungs stay open) through a special airway device can help late preterm and early term infants with breathing problems. The goal is to see if this approach works better than current methods without needing a breathing tube.
San Diego, CaliforniaAges 8 months–9 months - NCT07123727RecruitingPhase 2
Testing Anktiva for long COVID symptoms
This study tests if the drug Anktiva can help people with long COVID. To join, you must have had at least one confirmed COVID-19 infection and now have lasting symptoms that started or got worse after that infection.
El Segundo, CaliforniaAges 18–70 - NCT07090473Recruiting
Electrical stimulation for recent spinal cord injury recovery
This trial tests whether a mild electrical stimulation (called TENS) can help recovery after a recent spinal cord injury. It is for people who are already in the ICU with a drain in their lower back and had a blunt injury within the past 12 hours.
San Francisco, CaliforniaAges 21 years+ - NCT07074158Enrolling by invitation
Looking for long COVID clues in blood
This study compares the blood of people with ongoing long COVID symptoms to healthy people, to look for differences in immune signals and gut bacteria. It could help find better ways to diagnose or treat long COVID.
Palo Alto, CaliforniaAges 18 years+ - NCT07038200RecruitingPhase 3
Study of Del-brax (AOC 1020) for People with FSHD
This study tests an experimental medicine called Del-brax (AOC 1020) for people with facioscapulohumeral muscular dystrophy (FSHD). The goal is to see if it can help improve muscle strength and slow the disease. You may be able to join if you have a confirmed FSHD diagnosis and can walk at least 10 meters on your own.
Palo Alto, CaliforniaAges 16–70 - NCT07031245Recruiting
Reducing burnout among VA primary care teams
This study tests a program to reduce burnout for doctors, nurses, and staff in VA primary care clinics. If you work on a Patient-Aligned Care Team (PACT) in certain VA clinics in one region, you may be able to join.
Bakersfield, CaliforniaAges Any age - 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 - NCT06994676RecruitingPhase 1
Study of CBX-250 for advanced myeloid leukemias
This study tests an experimental drug, CBX-250, for people with certain advanced blood cancers (like AML) that have not responded to standard treatments or have returned. The drug works only for people who have a specific genetic marker (HLA-A*02:01). The goal is to see if it is safe and how well it works.
Duarte, CaliforniaAges 12 years+ - 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 - NCT06991114RecruitingPhase 2
AlloNK and rituximab for relapsing rheumatologic diseases
This trial tests a new natural killer (NK) cell therapy called AlloNK given with rituximab for people with certain autoimmune diseases (rheumatoid arthritis, Sjögren's disease, inflammatory myopathies, or systemic sclerosis) that have not responded well to standard treatments. The goal is to see if this combination can better control the disease.
Chula Vista, CaliforniaAges 18 years+ - NCT06983028RecruitingPhase 2
Testing atacicept for multiple kidney diseases
This trial tests a medicine called atacicept in adults and children with several types of kidney disease. The goal is to see if it can reduce protein in the urine and help protect kidney function.
Brisbane, CaliforniaAges 2 years+ - NCT06940323Recruiting
Pregnancy study for women with chronic conditions
This study tracks pregnant women with certain chronic health conditions (like multiple sclerosis, lupus, or rheumatoid arthritis) and healthy pregnant women as a comparison group. It aims to understand how these conditions and their treatments affect pregnancy, the baby, and breast milk.
San Francisco, CaliforniaAges 18–64
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.
- City of Hope · 4 studies
- Sharp Mary Birch Hospital for Women & Newborns · 2 studies
- Stanford University · 2 studies
- UC Irvine Health/Chao Family Comprehensive Cancer Center · 2 studies
- Zuckerberg San Francisco General Hospital and Trauma Center · 2 studies
- Altman Clinical and Translational Research Institute
- Artiva Investigational Site Chula Vista
- Artiva Investigational Site Covina
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.