Clinical trials · California
Down Syndrome clinical trials in California
We’re tracking 276 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
- 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 - NCT04954690Recruiting
Exercise program after kidney transplant for older adults
This trial tests a structured, coached exercise program for people who recently received a living-donor kidney and are coming from dialysis. It may help improve strength and daily function after transplant, especially if starting fitness is difficult.
San Francisco, CaliforniaAges 50 years+ - NCT05267821RecruitingPhase 2/Phase 3
Testing anakinra to reduce inflammation in pediatric sepsis MODS
This study tests whether a medicine called anakinra can “turn down” harmful inflammation in children with severe illness from sepsis. It aims to improve organ function when multiple organs are starting to fail.
Orange, CaliforniaAges 1 day–17 years - 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+ - NCT06440525RecruitingPhase 2
Testing RSLV-132 for Sjögren's disease in women
This study tests an investigational drug called RSLV-132 in women with Sjögren's disease to see if it can reduce symptoms like fatigue and dryness. You may join if you've been diagnosed in the last 30 years and have persistent symptoms.
Chula Vista, CaliforniaAges 18–75 - 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+ - NCT06691178Recruiting
Vaginal changes after CO2 laser therapy
This study looks at how CO2 laser therapy affects the vagina in people who have gone through menopause and have genitourinary symptoms like dryness or discomfort. It aims to understand the benefits and changes that happen after treatment.
Irvine, CaliforniaAges 18 years+ - NCT05905328RecruitingPhase 1/Phase 2
Drug to help prevent and treat cytokine release syndrome
This Phase 1/2 trial tests CTO1681 to help prevent and treat cytokine release syndrome (CRS) in people with DLBCL who are receiving CD19 CAR T-cell therapy. CRS is a potentially serious immune reaction that can happen after CAR T treatment, and this study aims to make that complication less severe or easier to manage.
Orange, CaliforniaAges 18 years+ - NCT06673108RecruitingPhase 2
Light therapy for chronic pelvic pain
This trial tests a light therapy device placed inside the vagina to treat long-term pelvic pain. It may help people whose pain hasn't been helped by other treatments.
Newport Beach, CaliforniaAges 18 years+ - NCT07528261Recruiting
Support Group for Family Caregivers of Stroke Survivors
This study tests whether a support group using acceptance and commitment therapy (a type of counseling that helps people cope with stress) can reduce caregiver burden and distress. You would meet online with other people caring for stroke survivors.
Alameda, CaliforniaAges 40 years+ - 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+ - NCT05905926Enrolling by invitationPhase 3
Tenapanor safety study for teens with constipation-predominant IBS
This trial checks the safety of tenapanor in children and teens (ages 6 to under 18) with IBS-C. It is only for people who finished a previous related study and agreed to continue follow-up.
Anaheim, CaliforniaAges 6–18 - NCT05654922RecruitingPhase 3
Prevent lung transplant airways scarring with ARINA-1
This Phase 3 trial tests ARINA-1 to slow or prevent worsening lung transplant scarring in the breathing tubes (bronchiolitis obliterans). It may help people who are showing early decline in lung function but are not yet at advanced disease.
Los Angeles, CaliforniaAges 18–75 - 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 - NCT02889016Recruiting
Markers study for children with PANS and healthy controls
This study looks at physical, immune, and brain-related “markers” in children with PANS and compares them with healthy children. It may help doctors understand what is happening in PANS and how to recognize it more clearly early on.
Palo Alto, CaliforniaAges 4–18 - NCT07573111RecruitingPhase 1
QUAIL-100 for Children With Blood Cancers After Stem Cell Transplant
This study tests a new experimental treatment called QUAIL-100 in children and young adults who have had a stem cell transplant for a serious blood cancer. The treatment is designed to help the immune system fight remaining cancer cells.
Palo Alto, CaliforniaAges 1.5 years–39 years - 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+ - NCT07589634RecruitingPhase 2
Tocilizumab to prevent side effects from ramantamig in multiple myeloma
This study tests whether a drug called tocilizumab can prevent serious side effects (cytokine release syndrome) when combined with a new cancer drug called ramantamig. You'll be eligible if you have multiple myeloma that has come back or stopped responding to prior treatments.
Beverly Hills, CaliforniaAges 18 years+ - NCT07498426RecruitingPhase 3
Study of NIO752 for progressive supranuclear palsy
This trial tests a new medicine called NIO752 for people with progressive supranuclear palsy (PSP), a condition that affects movement, balance, and thinking. The goal is to see if it can help slow the disease's progression.
San Francisco, CaliforniaAges 41–81 - 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+ - NCT05701917Recruiting
Clot-busting device versus blood thinners for leg clot
This study compares a clot-removal device (ClotTriever) plus standard care versus standard blood thinners alone for a deep vein clot in the leg. It aims to see which approach better improves leg symptoms and outcomes.
Orange, CaliforniaAges 18 years+ - 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 - 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 - NCT04227847RecruitingPhase 1
Study of a CD70-targeting drug for blood cancer
This Phase 1 study tests the safety of SEA-CD70, a drug that targets CD70, in people with certain blood cancers like MDS and AML. It may help doctors learn whether this approach can be used safely for patients whose disease has come back or not responded to standard treatments.
Duarte, 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.
- University of California · 3 studies
- City of Hope Comprehensive Cancer Center · 2 studies
- Stanford University · 2 studies
- University of California, Los Angeles (UCLA) · 2 studies
- University of California, San Francisco · 2 studies
- Advanced Research Center (ARC), Inc.
- Beverly Hills Cancer Center (BHCC)
- Cedars-Sinai Medical Center
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.