Clinical trials · California
Ulcerative Colitis clinical trials in California
We’re tracking 46 recruiting ulcerative colitis studies with a site in California — including Phase 1, Phase 2, Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06979336RecruitingPhase 2
New drug for moderate to severe UC
This study tests an experimental drug called RO7837195 for people with moderate to severe ulcerative colitis (UC) who haven't gotten enough help from other treatments. It aims to see if this new drug can reduce inflammation and improve symptoms.
Lancaster, CaliforniaAges 18 years+ - NCT06495658Recruiting
Prebiotics for ulcerative colitis symptoms
This trial tests whether a prebiotic supplement can improve symptoms of ulcerative colitis. It may be a good option for people with active symptoms who are already on stable medications.
Los Angeles, CaliforniaAges 18–85 - NCT05987852Recruiting
Hyperbaric oxygen therapy for ulcerative colitis flare
This trial tests if hyperbaric oxygen therapy (breathing pure oxygen in a special chamber) can help people hospitalized with a moderate to severe ulcerative colitis flare get better faster. You will receive the therapy along with standard steroid treatment.
Los Angeles, CaliforniaAges 18–85 - NCT04721873RecruitingPhase 2
Weight-loss medicine for people with ulcerative colitis
This study tests whether a weight-loss medication, along with usual ulcerative colitis care, can help people who have both ulcerative colitis and obesity. It focuses on people with active symptoms or who need ongoing steroid medicine, and it also checks safety with heart, blood, infection, and mental-health screenings.
La Jolla, CaliforniaAges 18–80 - NCT06588855RecruitingPhase 3
Study of afimkibart for moderate to severe ulcerative colitis
This trial is testing a new medication called afimkibart (RO7790121) for people with moderate to severe ulcerative colitis. It aims to see if this treatment can help reduce inflammation and improve symptoms in people who haven't had success with other therapies.
Apple Valley, CaliforniaAges 16–80 - NCT06100289RecruitingPhase 3
Study of vedolizumab for kids with ulcerative colitis or Crohn's disease
This trial tests vedolizumab, a biologic medicine that reduces inflammation, in children and teenagers who have moderate to severe ulcerative colitis or Crohn's disease and have not responded well to other treatments.
Loma Linda, CaliforniaAges 2–17 - NCT07483073RecruitingPhase 2
Study of new drugs for moderate to severe ulcerative colitis or Crohn's disease
This trial is testing multiple new drugs for people with moderate to severe ulcerative colitis or Crohn's disease who have not had success with at least one standard treatment. The goal is to find a better option that can help control symptoms and inflammation.
Los Angeles, CaliforniaAges 18–80 - NCT03615690Recruiting
Fasting-mimicking diet test for ulcerative colitis
This study tests whether a “fasting-mimicking diet” can improve mild to moderate ulcerative colitis. You would follow the study diet plan and be monitored to see if symptoms and disease activity change.
Palo Alto, CaliforniaAges 18–70 - NCT04401605Recruiting
Fermented foods diet for ulcerative colitis symptoms
This study tests whether adding fermented foods to your diet can improve symptoms of ulcerative colitis. It also looks at people with intestinal inflammation markers to see if diet changes may help them feel better.
Palo Alto, CaliforniaAges 18 years+ - NCT05442567RecruitingPhase 3
Vedolizumab study for kids with ulcerative colitis or Crohn’s
This Phase 3 study tests whether vedolizumab can help children with ulcerative colitis (UC) or Crohn’s disease (CD) who improved on earlier treatment. It focuses on kids who can stay off steroid medicines and follow study visits and safety rules.
Los Angeles, CaliforniaAges 2 years+ - NCT06405087RecruitingPhase 3
Long-term study of vedolizumab for children with IBD
This study is for children and teenagers with ulcerative colitis or Crohn's disease who have already completed a previous vedolizumab study and are doing well. It will look at the long-term safety and effectiveness of continuing vedolizumab treatment.
Orange, CaliforniaAges 2–17 - NCT06937086RecruitingPhase 3
Mirikizumab plus tirzepatide for UC with obesity
This study tests whether adding mirikizumab to the weight-loss drug tirzepatide helps people with moderate-to-severe ulcerative colitis who also have obesity or overweight. It aims to see if the combination reduces bowel inflammation and helps with weight management.
Anaheim, CaliforniaAges 18–70 - NCT06581328RecruitingPhase 4
Study of vedolizumab for ulcerative colitis or Crohn's disease
This study tests the drug vedolizumab in adults with moderate to severe ulcerative colitis or Crohn's disease. It aims to see how well the medicine works in a community (non-hospital) setting.
Escondido, CaliforniaAges 18–80 - NCT06424769Enrolling by invitation
Managing Inflammatory Bowel Disease with Text Message Surveys
This study aims to improve care and reduce health gaps for people with inflammatory bowel disease using text-message surveys to track symptoms and guide better disease management.
San Francisco, CaliforniaAges 13 years+ - NCT06560021Enrolling by invitation
Random biopsies in inflammatory bowel disease surveillance
This trial looks at whether taking random biopsies during a routine colonoscopy is helpful for people with inflammatory bowel disease (IBD) who are at risk for colon cancer. It aims to understand if random biopsies can detect early signs of cancer or pre-cancer.
Los Angeles, CaliforniaAges 18 years+ - NCT07034443Recruiting
Magnetic stimulation for leaky bowel after J-pouch surgery
This trial tests if high-intensity focused electromagnetic stimulation can improve bowel control in people who have a J-pouch after ulcerative colitis surgery. It may help if you have leakage or incontinence.
Los Angeles, CaliforniaAges 18 years+ - NCT05230173Recruiting
Treat to endoscopic remission in inflammatory bowel disease
This study tests whether switching to a different treatment for inflammatory bowel disease (IBD) can achieve healing of the gut lining. It is for people whose symptoms are under control but who still have significant inflammation in their bowel.
Irvine, CaliforniaAges 18 years+ - NCT03816345RecruitingPhase 1
Nivolumab for advanced cancer with autoimmune conditions
This Phase 1 study tests nivolumab, an immunotherapy “anti-cancer accelerator,” in people with advanced cancer who also have an autoimmune disorder. It aims to see if nivolumab can be given safely and whether it may help shrink or control cancer.
Palo Alto, CaliforniaAges 18 years+ - NCT06571669Recruiting
Nerve stimulation device for ulcerative colitis
This trial tests a new medical device called BOOM-IBD2 that uses gentle nerve stimulation to treat ulcerative colitis. It's for people who have not had UC surgery and do not have certain infections or other implanted devices.
Folsom, CaliforniaAges 18–85 - NCT06587828Recruiting
Looking at immune cells in people with autoimmune disease
This study collects blood, tissue, and other samples from people with autoimmune diseases like Crohn's disease, multiple sclerosis, or lupus. Researchers will study your immune cells (T cells) to learn what they are attacking, which could lead to better treatments in the future.
Orange, CaliforniaAges 18 years+ - NCT02791854Enrolling by invitation
Improving Care for Adults With Crohn’s or Ulcerative Colitis
This trial looks at ways to improve care for adults living with inflammatory bowel disease, including Crohn’s disease and ulcerative colitis. You may be invited if your clinic is part of an inflammatory bowel disease care network called IBD Qorus.
Los Angeles, CaliforniaAges 18–99 - 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+
Ulcerative Colitis trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting ulcerative colitis studies listed above.
- Cedars-Sinai Medical Center · 5 studies
- Hoag Memorial Hospital Presbyterian · 3 studies
- Stanford University · 3 studies
- University of California, Los Angeles (UCLA) · 3 studies
- Children's Hospital of Orange County · 2 studies
- Hoag Digestive Health Institute · 2 studies
- Knowledge Research Center · 2 studies
- Medical Associates Research Group, Inc. · 2 studies
What taking part in a ulcerative colitis 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.
Ulcerative Colitis trials in other states
Common questions
- Are there ulcerative colitis clinical trials in California?
- Yes. We're currently tracking 46 recruiting ulcerative colitis 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 ulcerative colitis 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 ulcerative colitis 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 ulcerative colitis 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.