Clinical trials · California
Down Syndrome clinical trials in California
We’re tracking 276 recruiting down syndrome studies with a site in California — including Early Phase 1, Phase 1, Phase 2, Phase 2/Phase 3 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06066502RecruitingPhase 3
Precision ventilation for ARDS
This study tests whether a customized breathing machine approach ("precision ventilation") is better than usual care for patients with ARDS. The goal is to improve oxygen levels and recovery while avoiding lung damage.
Los Angeles, CaliforniaAges 18 years+ - NCT07494162Recruiting
Acupuncture for chronic low back pain with muscle knots
This trial tests if acupuncture can help chronic low back pain by looking at changes in muscle metabolism and blood flow. It compares real acupuncture with a sham (fake) procedure to see if there is a true benefit.
Sacramento, CaliforniaAges 18 years+ - NCT07538583RecruitingPhase 2/Phase 3
QRX003 Lotion for Netherton Syndrome
This study tests a new lotion (QRX003) designed to treat Netherton Syndrome, a rare genetic skin condition. The lotion is applied to affected skin areas to see if it can reduce symptoms and improve skin health.
Fremont, CaliforniaAges 4 years+ - NCT07625579Recruiting
Collaboration for Down Syndrome Progress Research Study
This research study aims to better understand Down syndrome by collecting health information, family history, and sometimes brain imaging or sleep data from children and adults with Down syndrome and their families. The goal is to advance knowledge that could improve health and development for people with Down syndrome.
Orange, CaliforniaAges Any age - NCT07643896Recruiting
Blood test for pregnancy risk assessment using fetal cells
This study tests a new blood test that looks for fetal cells in your bloodstream to check your baby's health during pregnancy. The test is non-invasive—just a regular blood draw—and aims to help identify pregnancy risks earlier than traditional methods.
West Covina, CaliforniaAges Any age - NCT07464639Enrolling by invitation
Comparing two ways to help shoulder pain with movement feedback
This study compares using ultrasound images (dynamic visual feedback) versus manual guidance to help activate shoulder blade muscles and improve space in the shoulder joint for people with shoulder pain when lifting their arm.
Long Beach, CaliforniaAges 18–70 - NCT06583395Enrolling by invitation
Meditation retreat study with fitness tracker
This trial studies people attending a 7-day meditation retreat to see how meditation affects well-being. You will wear a fitness tracker and answer surveys.
Palm Desert, CaliforniaAges 21 years+ - NCT05301361Enrolling by invitationPhase 1
Test of brain testing during stimulant treatment for ADHD
This trial checks whether a “NIH Toolbox” set of child-friendly tests can detect changes when stimulant medicine is used for ADHD. It may help doctors better measure how well stimulant treatment is working in people with intellectual disability.
Sacramento, CaliforniaAges 6–24 - NCT04988256Enrolling by invitationEarly Phase 1
Test cyclosporine versus steroids for DRESS skin reaction
This trial compares two medicines—cyclosporine and steroid treatment—for a rare, serious drug reaction called DRESS. It aims to see which treatment controls the illness more safely and effectively.
Los Angeles, CaliforniaAges 18 years+ - NCT04880876Enrolling by invitationPhase 3
Oral IBS-D medicine trial for kids and teens
This trial tests whether an oral medicine (eluxadoline) can help children and teens with IBS-D, a condition that causes stomach pain and frequent loose stools. It’s a Phase 3 study, meaning it’s designed to confirm benefits and safety.
Corona, CaliforniaAges 6–17 - NCT06656494RecruitingPhase 1
New drug combo for myeloid blood cancers
This trial tests a new drug (ICP-248) combined with standard treatment azacitidine for people with acute myeloid leukemia (AML) or myelodysplastic syndromes (MDS). It aims to find out if the combo is safe and effective for those who haven't been helped by other treatments or cannot have strong chemotherapy.
Orange, CaliforniaAges 18 years+ - NCT00900198Recruiting
Give cancer tissue samples to help future cancer research
This study collects tissue or other cancer-related samples to help researchers better understand cancer and develop better tests or treatments. You can join if you are being evaluated for or treated for cancer, and you agree to let your samples be used for research.
Sacramento, CaliforniaAges 2 months+ - 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 - 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 - NCT05564390RecruitingPhase 2
MyeloMATCH screening to match you to AML or MDS treatment
This study screens people with newly suspected acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) to see which treatment approach fits best—either a specific study treatment or standard care. It may help by directing you to the right option and by sharing your blood/bone marrow samples for research.
Berkeley, CaliforniaAges 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+ - NCT07210515RecruitingPhase 3
Testing Ambros Therapy for Early CRPS
This trial tests if an intravenous medicine called AMBTX-01 (neridronate) can help people with early-stage Complex Regional Pain Syndrome (CRPS) type 1. It focuses on those whose affected limb feels warm, looks red, and is swollen.
Napa, CaliforniaAges 18 years+ - NCT07764328Recruiting
Supplement for hormone balance in women with PCOS
This trial tests a dietary supplement designed to improve hormone balance in women with PCOS or PCOS-like symptoms. It may help regulate menstrual cycles and reduce signs like acne or excess hair growth.
Los Angeles, CaliforniaAges 18–40 - NCT06827262Recruiting
A procedure for vertebrogenic back pain relief
This trial tests a minimally invasive procedure that uses a special device to target and treat nerve-related back pain coming from the vertebrae (the bones in your spine). It may offer lasting relief without more major surgery.
Larkspur, 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 - NCT06476795Recruiting
Grape pomace from chardonnay for heart and gut health in postmenopausal women
This study tests if consuming a powder made from chardonnay grape pomace (the leftover skins and seeds from winemaking) can improve gut and heart health in postmenopausal women. You may be a good fit if you are between 45-70, have gone through menopause, and have higher levels of blood fats called triglycerides.
Davis, CaliforniaAges 45–70 - NCT06979531RecruitingPhase 2
A study of IMVT-1402 for Sjogren's disease with moderate to severe symptoms
This trial tests an experimental drug, IMVT-1402, in adults with primary Sjogren's disease who have moderate to severe symptoms. The goal is to see if it can reduce disease activity safely.
Covina, CaliforniaAges 18–74 - NCT06735664RecruitingPhase 1
Zanubrutinib and odronextamab for Richter's transformation
This trial tests a combination of two targeted drugs for people with Richter's transformation, an aggressive lymphoma that can develop from CLL. The goal is to see if this combination can help control the disease.
Duarte, CaliforniaAges 18 years+ - NCT06508164Recruiting
International registry for rare RYR2 variants
This study creates a registry for people with rare changes in the RYR2 gene that affect heart function. Researchers will collect information to better understand these conditions and improve care.
San Francisco, 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, Irvine Medical Center / UC Irvine Health · 4 studies
- University of California, Davis Medical Center · 3 studies
- University of California, San Francisco · 3 studies
- Cedars-Sinai Medical Center · 2 studies
- Stanford University · 2 studies
- Alta Bates Summit Medical Center
- Ambros Clinical Trial Site
- Ascendis Pharma
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 276 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.