for people ages 18-75 (full criteria)
at La Jolla, California and other locations
study started
estimated completion



The primary objectives of this study are to evaluate the safety and efficacy of filgotinib during induction and maintenance treatment of moderately to severely active Crohn's disease (CD) in participants who are biologic-naive and biologic-experienced. Participants who complete the study, or do not meet protocol response or remission criteria at Week 10 will have the option to enter a separate long-term extension (LTE) study (Gilead Study GS-US-419-3896).

Official Title

Combined Phase 3, Double-blind, Randomized, Placebo-Controlled Studies Evaluating the Efficacy and Safety of Filgotinib in the Induction and Maintenance of Remission in Subjects With Moderately to Severely Active Crohn's Disease


Crohn's Disease Crohn Disease Filgotinib Filgotinib Dose A (Induction Study) Filgotinib Dose B (Induction Study) Maintenance Study


For people ages 18-75

Key Inclusion Criteria:

  • Males or non-pregnant, non-lactating females, ages 18 to 75 years, inclusive based on the date of the screening visit
  • Documented diagnosis of CD with a minimum disease duration of 3 months with involvement of the ileum and/or colon at a minimum, as determined by histopathology and endoscopic assessment
  • Moderately to severely active CD
  • Previously demonstrated an inadequate clinical response, loss of response to, or intolerance to at least 1 of the following agents (depending on current country treatment recommendations/guidelines): corticosteroids, immunomodulators, tumor necrosis factor alpha (TNFa) antagonists, or vedolizumab

Key Exclusion Criteria:

  • Current complications of CD such as symptomatic strictures, severe rectal/anal stenosis, fistulae, short bowel syndrome, etc.
  • Presence of ulcerative colitis, indeterminate colitis, ischemic colitis, fulminant colitis, or toxic mega-colon
  • Active tuberculosis (TB) or history of latent TB that has not been treated
  • Use of any prohibited concomitant medications as described in the study protocol

NOTE: Other protocol defined Inclusion/ Exclusion criteria may apply.


  • UC San Diego Health System accepting new patients
    La Jolla California 92037 United States
  • Naval Medical Center San Diego withdrawn
    San Diego California 92134 United States


accepting new patients
Start Date
Completion Date
Gilead Sciences
Phase 3
Study Type
Last Updated