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 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- 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 - NCT06472765Enrolling by invitation
Study of the Vaginal Ecosystem in Healthy Women
This study looks at the natural balance of bacteria and other factors in the vagina of healthy women. It aims to learn more about what a healthy vaginal ecosystem looks like.
Fullerton, CaliforniaAges 18–89 - NCT06428019RecruitingPhase 3
Comparing drug combinations for untreated CLL or SLL
This trial tests two different drug combinations (venetoclax with obinutuzumab or with acalabrutinib) to see how they affect the risk of tumor lysis syndrome in people with untreated CLL or SLL. It may help find the safest and most effective way to start treatment.
Clovis, CaliforniaAges 18 years+ - NCT06375993Enrolling by invitationPhase 1
Prula-cel for autoimmune diseases: a phase 1 study
This trial tests a new treatment called prulacabtagene leucel (prula-cel), which is a type of immune cell therapy (CAR T-cells) for people with certain autoimmune diseases. It aims to see if it can reset the immune system and reduce disease activity in conditions like lupus, scleroderma, vasculitis, or myositis.
Redwood City, CaliforniaAges 18–80 - NCT06369753Recruiting
Study on visible belly swelling after meals
This study looks at people whose belly visibly swells after eating. The goal is to understand this condition and track symptoms over time.
Los Angeles, CaliforniaAges 18–80 - NCT06377969Recruiting
Spinal cord stimulation for chronic pelvic pain
This study tests a device called a spinal cord stimulator — a small implant that sends mild electrical pulses to nerves in your spine — to see if it can reduce long-term pelvic pain that hasn't gotten better with other treatments.
Redwood City, CaliforniaAges 18 years+ - NCT06366230RecruitingPhase 1/Phase 2
Adding urea to final dialysis fluid
This trial tests adding urea to the final dialysis fluid for people with very high urea levels. It aims to make dialysis safer and more effective for those who need it urgently.
San Francisco, CaliforniaAges 18 years+ - NCT06283498Enrolling by invitation
Radiofrequency treatment for overactive bladder
This study tests a new non-surgical treatment for overactive bladder using radiofrequency energy delivered through the vagina to calm the nerves that cause urgency and leaking. It is for people who have urge incontinence and have not found relief from medication.
Corona del Mar, CaliforniaAges 21–80 - NCT05412927Recruiting
Heart device follow-up study for high-risk heart patients
This study monitors how well the AngelMed Guardian® System works after it has already been implanted. It focuses on people at higher risk of heart events, including those with diabetes or kidney problems.
Los Angeles, CaliforniaAges 21 years+ - NCT06193928Recruiting
Long-term safety study of Livmarli in ALGS or PFIC
This study is following patients who are already taking Livmarli (maralixibat) for Alagille syndrome or PFIC to see how safe and effective it is over the long term.
Los Angeles, CaliforniaAges Any age - NCT06188689Recruiting
Testing a new diagnostic test for heart rhythm disorders
This study is evaluating a new diagnostic test for Calcium Release Deficiency Syndrome (CRDS) and related heart rhythm disorders. It aims to find out if this test can accurately identify patients with these conditions, which could lead to better diagnosis and treatment.
San Francisco, CaliforniaAges Any age - NCT06194305RecruitingPhase 2
Brain and behavior study of tic therapy for kids
This study tests a behavioral therapy (CBIT) for children with tics. It uses brain scans (MRI and EEG) to see how the therapy works. It may be a good fit for a child who has had tics for at least a year and hasn't had much of this therapy before.
San Diego, CaliforniaAges 10–17 - NCT06144957Enrolling by invitation
SLC13A5 deficiency natural history study (US only)
This study follows people with SLC13A5 deficiency (a rare genetic condition that affects brain development) to learn more about the disease over time. It collects health information, assessments, and samples to help understand the condition and plan future treatments.
Palo Alto, CaliforniaAges Any age - NCT06112418Recruiting
Personalized vs standard care to prevent heart attacks
This trial compares two ways to prevent heart attacks and strokes: one uses a special heart CT scan to guide care, the other uses standard risk factors like blood pressure and cholesterol. You may be eligible if you are older (men over 55, women over 65) and have diabetes, prediabetes, or metabolic syndrome.
Palo Alto, CaliforniaAges 55 years+ - NCT02848274Recruiting
Looking for factors that predict outcomes in advanced skin lymphoma
This study looks at medical and disease details to find factors that can help predict how advanced mycosis fungoides or Sézary syndrome will behave. Your information may help doctors better estimate prognosis and plan care.
Palo Alto, CaliforniaAges Any age - NCT06086379Enrolling by invitation
Cognitive rehab therapy for COVID-related thinking problems in Veterans
This study tests a cognitive rehabilitation therapy designed to help Veterans who have memory and thinking problems after COVID-19. It aims to improve daily mental function and quality of life.
San Diego, CaliforniaAges 18 years+ - NCT04885179Recruiting
Study of SPLIS genetics and patient experiences
This observational study and patient registry collects information from people diagnosed with SPLIS due to specific changes in the SGPL1 gene, including children and newborns. It helps researchers understand the condition better and may improve future care and research planning.
San Francisco, CaliforniaAges Any age - NCT06094205Recruiting
BrainGate2 speech study for people with tetraplegia
This study tests a brain-computer interface to help people with severe paralysis communicate by decoding attempted speech or movements. It may offer a new way to interact with devices using only brain signals.
Sacramento, CaliforniaAges 18–80 - NCT06094543Recruiting
Improving access and adherence for overactive bladder treatment
This study compares two ways to help women with overactive bladder get treatment and stick with it. You might be able to join if you are a woman with ongoing OAB symptoms and haven't had certain treatments recently.
Redwood City, CaliforniaAges 18 years+ - NCT03452774Recruiting
AI matches your cancer tests to possible treatment trials
This trial uses an AI system to help match people with certain cancer types and specific tumor test results (like gene or protein markers) to relevant clinical trials. It may help you and your doctor find studies that fit your cancer biology faster.
Duarte, CaliforniaAges Any age - 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 - NCT05979441Enrolling by invitationPhase 3
Long-term safety of efgartigimod injection for myositis
This study tests the long-term safety and effectiveness of a subcutaneous (under-the-skin) version of efgartigimod for adults with active idiopathic inflammatory myopathy. It is for people who have already completed an earlier study of this medicine.
Beverly Hills, CaliforniaAges 18 years+ - NCT05978141Recruiting
T-cell lymphoma registry study
This study creates a registry for people with certain T-cell or NK-cell lymphomas. It collects health information and tumor samples to learn more about these diseases and improve future treatments.
Duarte, CaliforniaAges Any age - NCT05953090Recruiting
Vaginal irritation study with device use and long follow-up
This trial studies a treatment for long-lasting vaginal/vulvar irritation caused by conditions like vaginal atrophy or certain skin conditions of the vulva. You would try the study product/device and be followed over time to see how symptoms recover.
Burbank, CaliforniaAges 18 years+
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 · 2 studies
- University of California · 2 studies
- University of California, Davis · 2 studies
- Ace Research Institute - Monterey Park
- Ace Research Institute: Northridge
- Ace Research Institute: Northridge #2
- Adicet Clinical Trials
- Amicis Research: Beverly Hills
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.