Clinical trials · California
Moderately to Severely Active Crohns Disease clinical trials in California
We’re tracking 41 recruiting moderately to severely active crohns disease studies with a site in California — including Phase 2, Phase 2/Phase 3, Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies in California
- 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 - NCT07463183RecruitingPhase 2
Study of MK-8690 for moderate to severe ulcerative colitis
This trial tests an investigational drug called MK-8690 for people with moderate to severe ulcerative colitis (UC) who haven't responded well to other treatments or can't tolerate them. The study aims to see if the drug can help control UC symptoms safely.
Anaheim, CaliforniaAges 18–75 - NCT07577856RecruitingPhase 3
Testing JNJ-78934804 for moderate to severe ulcerative colitis
This study tests a new drug called JNJ-78934804 to treat ulcerative colitis (inflammation of the colon and rectum) that is moderate to severe and hasn't responded well to standard treatments. The goal is to see if this drug can reduce inflammation and improve symptoms.
Anaheim, CaliforniaAges 18 years+ - 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+ - NCT07186101RecruitingPhase 2
Testing a new combo therapy for ulcerative colitis
This study tests two drugs together (LY4268989 and mirikizumab) in people with moderate to severe ulcerative colitis. It's for those whose current treatments didn't work well enough.
Anaheim, CaliforniaAges 18–80 - NCT05076175RecruitingPhase 2/Phase 3
Oral ozanimod for children with moderate to severe ulcerative colitis
This trial tests whether an oral medicine called ozanimod can improve ulcerative colitis (UC) in children whose disease is moderate to severe. It’s meant for kids who didn’t fully respond—or couldn’t tolerate—standard UC treatments.
Garden Grove, CaliforniaAges 2–17 - NCT06029972RecruitingPhase 2
Experimental drug for moderate to severe ulcerative colitis
This trial tests an experimental medication (tilpisertib fosmecarbil) for people with moderate to severe ulcerative colitis who have already tried at least one advanced therapy but it didn't work well enough. The study aims to see if this new drug can help reduce inflammation and improve symptoms.
La Jolla, CaliforniaAges 18–75 - NCT06598943RecruitingPhase 2
Study of two new drugs for ulcerative colitis
This study tests two experimental drugs, Eltrekibart and Mirikizumab, for adults with moderate to severe ulcerative colitis who have not responded well to other treatments. The goal is to see if these drugs can help control the disease.
Chula Vista, CaliforniaAges 18–75 - 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 - NCT07184996RecruitingPhase 3
Study of duvakitug for moderate to severe ulcerative colitis
This study tests a new drug called duvakitug for people with moderate to severe ulcerative colitis that hasn't been helped enough by standard treatments. The goal is to see if this medicine can reduce inflammation and improve symptoms.
Tarzana, CaliforniaAges 16–80 - 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+ - 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 - NCT07082738RecruitingPhase 2
Study of AZD6793 for people with moderate to very severe COPD
This trial tests a new drug called AZD6793 for people with moderate to very severe COPD. It aims to see if the drug can help improve breathing and reduce flare-ups.
Canoga Park, CaliforniaAges 40 years+ - NCT07012395RecruitingPhase 2
Long-acting antibodies for moderate to severe ulcerative colitis
This study tests new long-acting antibodies, given alone or in combination, for people with moderate to severe ulcerative colitis. The goal is to see if these treatments can help reduce inflammation and improve symptoms.
Canoga Park, CaliforniaAges 18–75 - 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+ - NCT06398626Recruiting
Observational study of etrasimod for ulcerative colitis
This study watches how well etrasimod works for adults with moderate to severe ulcerative colitis (UC). You must already be prescribed etrasimod by your doctor, and the study collects information through a web-based tool.
La Jolla, CaliforniaAges 18–64 - NCT04314375RecruitingPhase 4
Budesonide tablets for children with mild to moderate ulcerative colitis
This trial studies whether budesonide extended-release tablets are safe and effective for improving symptoms in children ages 5–17 with active, mild to moderate ulcerative colitis. It also measures how the medicine moves through the body.
Garden Grove, CaliforniaAges 5–17
Moderately to Severely Active Crohns Disease trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting moderately to severely active crohns disease studies listed above.
- United Medical Doctors · 5 studies
- Cedars-Sinai Medical Center · 4 studies
- Medical Associates Research Group, Inc. · 4 studies
- Clinnova Research · 3 studies
- Om Research LLC · 3 studies
- Amicis Research Center · 2 studies
- Clinical Trials Management Services · 2 studies
- Erick H. Alayo Medical Corporation · 2 studies
What taking part in a moderately to severely active crohns disease 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.
Moderately to Severely Active Crohns Disease trials in other states
Common questions
- Are there moderately to severely active crohns disease clinical trials in California?
- Yes. We're currently tracking 41 recruiting moderately to severely active crohns disease 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 moderately to severely active crohns disease 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 moderately to severely active crohns disease 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 moderately to severely active crohns disease 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.