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Crohn's Disease clinical trials in California
37 studies for Crohn's Disease are looking for participants at sites in California.
Cities in California
- San Diego15 studies
- Los Angeles15 studies
- Lancaster7 studies
- Anaheim6 studies
- Mountain View5 studies
- Oxnard5 studies
- Murrieta4 studies
- Westminster4 studies
- Santa Monica4 studies
- Orange4 studies
- Sacramento4 studies
- San Francisco4 studies
- Escondido3 studies
Study of Advanced Therapies for the Treatment of Adult Participants With Moderately to Severely Active Crohn's Disease or Ulcerative Colitis
- Clinnova Research /ID# 280509, Anaheim
- Southern California Res. Ctr /ID# 280476, Coronado
- Gastro Care Institute /ID# 281071, Lancaster
- and 2 more
RecruitingPhase 2
Ages 18 to 75 · All sexes · Updated Oct 5, 2026 · NCT07697456Testing an Immunotherapy Anti-cancer Drug, Nivolumab, for Advanced Cancers in Patients With Autoimmune Disorders, AIM-NIVO
- University of California Davis Comprehensive Cancer Center, Sacramento
RecruitingPhase 1
Ages 18 and older · All sexes · Updated Oct 5, 2026 · NCT03816345A Study to Evaluate the Efficacy and Safety of Tulisokibart (MK-7240) in Participants With Moderate to Severe Crohn's Disease (MK-7240-008)
- Clinnova Research ( Site 5110), Anaheim
- Southern California Research Center ( Site 5044), Coronado
- Om Research LLC ( Site 5038), Lancaster
- and 5 more
RecruitingPhase 3
Ages 16 to 80 · All sexes · Updated Oct 2, 2026 · NCT06430801A Study of Vedolizumab in Adults With Ulcerative Colitis (UC) or Crohn's Disease (CD) in the Community Setting
- Gastroenterology and Liver Institute, Escondido
- United Clinical Research Institute, Murrieta
RecruitingPhase 4
Ages 18 to 80 · All sexes · Updated Sep 30, 2026 · NCT06581328Study of Targeted Therapies for the Treatment of Adult Participants With Moderate to Severe Crohn's Disease
- Southern California Res. Ctr /ID# 265549, Coronado
- UC San Diego Health System /ID# 265565, La Jolla
- uc davis medical center - patient support services building /ID# 265554, Sacramento
RecruitingPhase 2
Ages 18 to 75 · All sexes · Updated Sep 25, 2026 · NCT06548542A Study of Guselkumab in Pediatric Participants With Moderately to Severely Active Crohn's Disease
- Cedars Sinai Medical Center, Los Angeles
RecruitingPhase 3
Ages 2 to 17 · All sexes · Updated Sep 25, 2026 · NCT05923073A Study on the Safety of TAK-279 and Whether it Can Reduce Inflammation in the Bowel of Participants With Moderately to Severely Active Crohn's Disease
- United Medical Doctors, Murrieta
- UCI Health, Orange
RecruitingPhase 2
Ages 18 to 75 · All sexes · Updated Sep 25, 2026 · NCT06233461A Study of Guselkumab Versus Risankizumab in Participants With Moderately to Severely Active Crohn's Disease
- Clinnova Research, Anaheim
- Gastro Care Institute, Lancaster
- United Gastroenterologists, Los Alamitos
- and 3 more
RecruitingPhase 3
Ages 18 and older · All sexes · Updated Sep 25, 2026 · NCT07499232A Study of Icotrokinra in Participants With Moderately to Severely Active Crohn's Disease
- Clinnova Research, Anaheim
- Southern California Research Center, Coronado
- Om Research, LLC 1, Lancaster
- and 6 more
RecruitingPhase 2/3
Ages 18 and older · All sexes · Updated Sep 25, 2026 · NCT07196722Mirikizumab and Tirzepatide Administered in Adult Participants With Moderately to Severely Active Crohn's Disease and Obesity or Overweight
- Smart Cures Clinical Research, Anaheim
- Cedars-Sinai Medical Center, Beverly Hills
- United Medical Doctors - Los Alamitos, Los Alamitos
- and 1 more
RecruitingPhase 3
Ages 18 to 70 · All sexes · Updated Sep 24, 2026 · NCT06937099An Induction Study to Investigate the Efficacy and Safety of Duvakitug in Participants With Moderately to Severely Active Crohn's Disease
- Alliance Research Institute-Site Number: 8400008, Canoga Park
- Southern California GI & Liver Centers-Site Number: 8400062, Coronado
- Gastroenterology and Liver Institute - Escondido-Site Number: 8400146, Escondido
- and 14 more
RecruitingPhase 3
Ages 16 to 80 · All sexes · Updated Sep 23, 2026 · NCT07184931A Study to Assess Adverse Events, Change in Disease Activity, and How Intravenous and Subcutaneous Risankizumab Moves Through the Body of Pediatric Participants With Moderately to Severely Active Crohn's Disease
- UCSF Benioff Children's Hospital - Oakland /ID# 258327, Oakland
RecruitingPhase 3
Ages 2 to 17 · All sexes · Updated Sep 23, 2026 · NCT05995353A Master Protocol (AMAZ): A Study of Mirikizumab (LY3074828) in Pediatric Participants With Ulcerative Colitis or Crohn's Disease (SHINE-ON)
- UCSF Medical Center at Mission Bay, San Francisco
RecruitingPhase 3
Ages 2 to 19 · All sexes · Updated Sep 22, 2026 · NCT04844606A Study of LY4395089 and Mirikizumab (LY3074828) Given Together and Mirikizumab (Alone) in Adults With Crohn's Disease
- Biopharma Informatic, LLC, Los Angeles
- Om Research LLC, Oxnard
RecruitingPhase 2
Ages 18 to 80 · All sexes · Updated Sep 22, 2026 · NCT07483099A Phase 2 Study to Evaluate MORF-057 in Adults With Moderately to Severely Active Crohn's Disease
- Gastro Care Institute, Lancaster
- Infinity Clinical Research, San Diego
RecruitingPhase 2
Ages 18 to 85 · All sexes · Updated Sep 22, 2026 · NCT06226883A Master Protocol (IIBD): A Study of Multiple Drugs in Adults With Ulcerative Colitis or Crohn's Disease
- Biopharma Informatic, LLC, Los Angeles
- Om Research LLC, Oxnard
RecruitingPhase 2
Ages 18 to 80 · All sexes · Updated Sep 22, 2026 · NCT07483073A Study of Vedolizumab Intravenous (IV) and Adalimumab or Vedolizumab and Ustekinumab in Adults With Crohn's Disease
- University of California San Diego Health (UCSD), La Jolla
- Cedars-Sinai Medical Center, Los Angeles
- Hoag Hospital Newport Beach, Newport Beach
RecruitingPhase 4
Ages 18 to 70 · All sexes · Updated Sep 9, 2026 · NCT06045754A Study of JNJ-78934804 in Participants With Moderately to Severely Active Crohn's Disease
- Clinnova Research, Anaheim
- Gastro SB Clinic, Chula Vista
- United Medical Doctors, Los Alamitos
- and 1 more
RecruitingPhase 3
Ages 18 and older · All sexes · Updated Aug 28, 2026 · NCT07577843A Study of Mirikizumab (LY3074828) in Pediatric Participants With Crohn's Disease
- Cedars Sinai Medical Center, Los Angeles
RecruitingPhase 3
Ages 2 to 17 · All sexes · Updated Aug 24, 2026 · NCT05509777Treat-to-Target of Endoscopic Remission in Patients With IBD in Symptomatic Remission
- Hoag Hospital, Irvine
- UC San Diego Health, La Jolla
- Cedars-Sinai, Los Angeles
- and 1 more
Recruiting
Ages 18 and older · All sexes · Updated Aug 7, 2026 · NCT05230173A Study of Vedolizumab in Children and Teenagers With Ulcerative Colitis or Crohn's Disease
- Children's Hospital Of Orange County, Orange
RecruitingPhase 3
Ages 2 to 17 · All sexes · Updated Aug 3, 2026 · NCT06100289Crohn's Disease: Efficacy, Safety, and Pharmacokinetics of Upadacitinib in Pediatric Subjects With Moderately to Severely Active Crohn's Disease
- UCSF Benioff Children's Hospital - Oakland /ID# 262217, Oakland
- Lucile Packard Children's Hospital /ID# 262193, Palo Alto
RecruitingPhase 3
Ages 2 to 17 · All sexes · Updated Jun 24, 2026 · NCT06332534A Long-Term Extension Study of Vedolizumab in Children and Teenagers With Ulcerative Colitis (UC) or Crohn's Disease (CD)
- Loma Linda University, Loma Linda
- Children's Hospital of Orange County, Orange
- Stanford Children's Health, Palo Alto
RecruitingPhase 3
Ages 2 to 17 · All sexes · Updated Jun 22, 2026 · NCT06405087Moving Beyond Inflammation as a Therapeutic Target for Crohn's Disease
- Cedars-Sinai Medical Center, Beverly Hills
RecruitingPhase 2
Ages 18 to 80 · All sexes · Updated Jun 5, 2026 · NCT06976853A Study of Vedolizumab With and Without Upadacitinib in Adults With Crohn's Disease
- UCSD Medical Center, La Jolla
- Keck Medicine Of USC - USC Healthcare Center 1, Los Angeles
RecruitingPhase 3
Ages 18 to 65 · All sexes · Updated May 27, 2026 · NCT06227910Clinical, Imaging, and Endoscopic Outcomes of Children Newly Diagnosed With Crohn's Disease
- Cedars-Sinai, Los Angeles
- UCSF Benioff Children's Hospitals, San Francisco
RecruitingPhase 4
Ages 6 to 17 · All sexes · Updated May 27, 2026 · NCT05781152A Study of Vedolizumab in Children With Ulcerative Colitis (UC) or Crohn's Disease (CD)
- Rady Children's Hospital - San Diego - PIN, San Diego
RecruitingPhase 3
Ages 2 and older · All sexes · Updated May 7, 2026 · NCT05442567Precise Infliximab Exposure and Pharmacodynamic Control
- Children's Hospital of Los Angeles, Los Angeles
- Lucile Packard Children's Hospital Stanford, Palo Alto
- Rady Children's Hospital San Diego, San Diego
RecruitingPhase 2/3
Ages 6 to 22 · All sexes · Updated May 5, 2026 · NCT05660746A Study of Vedolizumab in Children and Teenagers With Moderate to Severe Crohn's Disease (CD)
- Rady Childrens Hospital San Diego - PIN, San Diego
RecruitingPhase 3
Ages 2 to 17 · All sexes · Updated May 5, 2026 · NCT04779320Efficacy and Safety of Obefazimod in Subjects With Moderately to Severely Active Crohn's Disease
- Hoag Hospital, Irvine
- United Medical Doctors, Murrieta
RecruitingPhase 2
Ages 18 to 75 · All sexes · Updated Apr 27, 2026 · NCT06456593A Study to Investigate Efficacy and Safety of SAR442970 in Patients With Crohn's Disease
- Investigational Site Number: 8400005, Escondido
- Investigational Site Number: 8400001, Lancaster
RecruitingPhase 2
Ages 18 to 75 · All sexes · Updated Mar 27, 2026 · NCT06958536Effect of Statins on Crohn's Disease
- Stanford University, Stanford
RecruitingEarly phase 1
Ages 18 to 80 · All sexes · Updated Feb 27, 2026 · NCT06538649Impact of Prebiotics in Ulcerative Colitis
- UCLA, Los Angeles
Recruiting
Ages 18 to 85 · All sexes · Updated Feb 27, 2026 · NCT06495658Stem Cell Transplantation in Crohn's Disease
- Cedars-Sinai Medical Center, Los Angeles
RecruitingPhase 1/2
Ages 13 to 28 · All sexes · Updated Feb 20, 2026 · NCT04224558Treatment of Moderate to Severe Refractory Crohn's Disease
- University of California, Davis, Sacramento
- University of California, San Francisco, San Francisco
RecruitingPhase 1/2
Ages 18 to 65 · All sexes · Updated Dec 10, 2025 · NCT06721962Stelara and Tremfya Pregnancy Exposure Registry OTIS Autoimmune Diseases in Pregnancy Project
- University of California, San Diego, La Jolla
RecruitingObservational study
All ages · Women · Updated Jan 28, 2025 · NCT02103361Urine Metabolites in the Diagnosis of Disease
- Unio Health Partners (Gastroenterology), Encinitas
- Digestive Health Associates, Santa Monica
- Westside Gastro Care, Santa Monica
- and 1 more
RecruitingObservational studyHealthy volunteers welcome
Ages 18 and older · All sexes · Updated Dec 13, 2024 · NCT06710067From ClinicalTrials.gov, data retrieved Oct 6, 2026. Each study sets its own eligibility; the study team decides who can join.