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Phase 3 Completed N=624 Randomized Quadruple-blind Treatment

A Study of the Efficacy and Safety of Upadacitinib (ABT-494) in Participants With Moderately to Severely Active Crohn's Disease Who Have Inadequately Responded to or Are Intolerant to Biologic Therapy

Crohn's Disease
Source: ClinicalTrials.gov NCT03345836 ↗
Enrolled (actual)
624
Serious AEs
10.1%
Results posted
Aug 2022
Primary outcomePrimary: Percentage of Participants With Clinical Remission Per Crohn's Disease Activity Index (CDAI) at Week 12 — 21.1; 38.9 percentage of participants — p=<0.0001
◆ Published Evidence
Established
42citations · ~42 / year
Efficacy and Safety of Upadacitinib for Perianal Fistulizing Crohn's Disease: A Post Hoc Analysis of 3 Phase 3 Trials.
Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2025 · Likely link

Summary

The objective of this study is to evaluate the efficacy and safety of upadacitinib compared to placebo as induction therapy in participants with moderately and severely active Crohn's disease (CD).

Linked Publications (5)

  • Efficacy and Safety of Upadacitinib for Perianal Fistulizing Crohn's Disease: A Post Hoc Analysis of 3 Phase 3 Trials.
    Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2025 · 42 citations · Likely link
  • Induction of Endoscopic Response, Remission, and Ulcer-Free Endoscopy With Upadacitinib Is Associated With Improved Clinical Outcomes and Quality of Life in Patients With Crohn's Disease.
    Inflammatory bowel diseases · 2025 · 6 citations · Open access · Likely link
  • Benefit-risk profile of upadacitinib: exploratory post hoc analysis of phase 2b/3 studies in patients with moderately to severely active ulcerative colitis or Crohn's disease.
    Journal of Crohn's & colitis · 2026 · 2 citations · Open access · Likely link
  • Long-Term Safety of Upadacitinib in Patients With Inflammatory Bowel Disease: Integrated Analysis of Phase 2/3 Studies.
    Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2026 · 1 citation · Open access · Likely link
  • Efficacy and Safety with Upadacitinib by Baseline Corticosteroid Use in Patients with Moderately to Severely Active Crohn's Disease.
    Inflammatory bowel diseases · 2026 · 0 citations · Open access · Likely link

Outcome Measures

OutcomeResultp-value
PRIMARY
Percentage of Participants With Clinical Remission Per Crohn's Disease Activity Index (CDAI) at Week 12
21.1; 38.9 <0.0001 sig
PRIMARY
Percentage of Participants With Endoscopic Response at Week 12
3.5; 34.6 <0.0001 sig
PRIMARY
Number of Participants With Adverse Events
112; 221; 86; 53; 45; 9
SECONDARY
Percentage of Participants With Clinical Remission Per Patient-Reported Outcomes (PROs) at Week 12
14.0; 39.8 <0.0001 sig
SECONDARY
Percentage of Participants With Endoscopic Remission at Week 12
2.3; 19.1 <0.0001 sig
SECONDARY
Percentage of Participants Who Discontinued Corticosteroid Use for Crohn's Disease (CD) and Achieved Clinical Remission Per CDAI at Week 12, in Participants Taking Corticosteroids at Baseline
11.7; 34.3 0.0001 sig
SECONDARY
Change From Baseline in Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F) Total Score at Week 12
3.9; 11.4 < 0.0001 sig
SECONDARY
Change From Baseline in Inflammatory Bowel Disease Questionnaire (IBDQ) Total Score at Week 12
21.6; 46.0 < 0.0001 sig
SECONDARY
Percentage of Participants Achieving Clinical Response 100 (CR-100) at Week 2
12.4; 33.2 <0.0001 sig
SECONDARY
Percentage of Participants Achieving Clinical Response 100 (CR-100) at Week 12
27.5; 50.5 <0.0001 sig
SECONDARY
Percentage of Participants With Clinical Remission Per Crohn's Disease Activity Index (CDAI) at Week 4
17.7; 29.6 0.0013 sig
SECONDARY
Percentage of Participants With Hospitalizations Due to Crohn's Disease (CD) During Part 1 (12-week Double-blind Induction Period)
8.8; 6.2 0.2834
SECONDARY
Percentage of Participants With Resolution of Extra-Intestinal Manifestations (EIMs) at Week 12, in Participants With EIMs at Baseline
21.7; 32.8 0.0833

Eligibility Criteria

Inclusion Criteria

  • Confirmed diagnosis of CD for at least 3 months prior to Baseline.
  • Confirmed diagnosis of moderate to severe CD as assessed by stool frequency (SF), abdominal pain (AP) score.
  • Evidence of mucosal inflammation based on the Simplified Endoscopic Score for Crohn's disease (SES-CD) on an endoscopy confirmed by a central reader.
  • Demonstrated an inadequate response or intolerance to any biologic therapy for infliximab, adalimumab, certolizumab pegol, vedolizumab, and ustekinumab.
  • If female, participant must meet the contraception recommendations.

Exclusion Criteria

  • Participant with a current diagnosis of ulcerative colitis or indeterminate colitis.
  • Participant not on stable doses of CD related antibiotics, oral aminosalicylates, corticosteroids or methotrexate (MTX).
  • Participant with the following ongoing known complications of CD: abscess (abdominal or peri-anal), symptomatic bowel strictures, fulminant colitis, toxic megacolon, or any other manifestation that might require surgery while enrolled in the study.
  • Participant with ostomy or ileoanal pouch.
  • Participant diagnosed with conditions that could interfere with drug absorption including but not limited to short gut or short bowel syndrome.
  • Screening laboratory and other protocol pre-specified analyses show abnormal results.
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT03345836) and the linked publication. Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.

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