A Study to Assess Adverse Events and Change in Disease Activity of Risankizumab Subcutaneous Induction Treatment for Moderately to Severely Active Crohn's Disease.

Phase 3

Recruiting

• Conditions: Crohn's Disease
• Interventions: Drug: Risankizumab SC; Drug: Placebo for risankizumab

• Registration Number: NCT06063967
• Lead Sponsor: AbbVie

Brief Summary

Crohn's disease (CD) is a long-lasting disease that causes severe inflammation (redness, swelling), in the digestive tract, most often affecting the bowels. It can cause many different symptoms including abdominal pain, diarrhea, tiredness, and weight loss. This study will assess how safe and effective risankizumab subcutaneous (SC) induction treatment is in treating moderately to severely active CD in adult participants.

Risankizumab is an approved drug for adults with CD. This study comprises of a Period A and a Period B. In Period A, participants are placed in 1 of 2 groups to receive either risankizumab SC or Placebo. In Period B, based on response, participants will receive risankizumab SC Dose B or Placebo. Participants who do not have improvement in CD symptoms at Week 12 will receive risankizumab SC Dose C and participants with worsening CD symptoms in period B will receive risankizumab SC. Approximately 276 adult participants with a diagnosis of moderately to severely active CD will be enrolled in approximately 250 sites globally.

Participants will receive SC induction treatment of risankizumab or matching placebo for up to 24 weeks in Period A and B. The duration of the study will be approximately 49 weeks.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2023-09-26
• Study First Submitted QC: 2023-09-26
• Study First Posted: 2023-10-03
• Study Start: 2023-11-15
• Status Verified: 2025-07
• Last Update Submitted: 2025-07-14
• Last Update Posted: 2025-07-16
• Primary Completion: 2027-07
• Study Completion: 2029-02-01

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 276

Inclusion Criteria

• Biopsy-confirmed diagnosis of CD for at least 3 months prior to Baseline.

• Participant meets the following disease activity criteria:

  1. Moderate to severe CD as assessed by CDAI
  2. Endoscopic evidence of mucosal inflammation as documented by a SES-CD

• Participant has demonstrated intolerance, loss of response or inadequate response to conventional or advanced therapies for CD.

Exclusion Criteria

• Participants with a current diagnosis of ulcerative colitis or indeterminate colitis.
• Participants with unstable doses of concomitant Crohn's disease therapy.
• Participants with prior exposure to p19 inhibitors.
• Participants with complications of Crohn's disease.
• Participants having an ostomy or ileoanal pouch.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SEQUENTIAL

Arm && Interventions

Group	Intervention	Description
Period A: Risankizumab Dose A	Risankizumab SC	Participants randomized to receive risankizumab Dose A administered by subcutaneous (SC) injection for up to 12 weeks during Period A.
Period A: Placebo	Placebo for risankizumab	Participants randomized to receive placebo for risankizumab administered by Subcutaneous (SC) injection for up to 12 weeks during Period A.
Period B: Risankizumab Dose B	Risankizumab SC	Participants randomized to receive risankizumab Dose A in Period A that achieved adequate response to receive risankizumab Dose B administered by subcutaneous (SC) injection for up to 12 weeks.
Period B: Placebo	Placebo for risankizumab	Participants randomized to receive placebo risankizumab in Period A that achieved adequate response to continue to receive placebo for risankizumab administered by Subcutaneous (SC) injection for up to 12 weeks in Period B.
Period B: Risankizumab Dose C	Risankizumab SC	Participants with inadequate response in Period A to receive Dose C administered by Subcutaneous (SC) injection for up to 12 weeks during Period B.
Period C: Open-Label Risankizumab Dose D	Risankizumab SC	Participants who complete the Period B Week 24 visit to receive open-label risankizumab Dose D administered by subcutaneous (SC) injection for up to 52 weeks during Period C.

Primary Outcome Measures

Name	Time	Method
Percentage of Participants With Crohn's Disease Activity Index (CDAI) Clinical Remission (CDAI < 150)	Week 12	The CDAI consists of 8 components; 7 are based on participant diary entries, participant interviews, physical examinations, measurement of body weight and height and 1 is based on laboratory analysis. CDAI clinical remission of Crohn's disease is defined as CDAI \< 150
Percentage of Participants With Endoscopic Response	Week 12	The Simple Endoscopic Score for Crohn's Disease (SES-CD) assesses endoscopic disease severity by evidence of active intestinal mucosal inflammation. Endoscopic response is defined as a decrease in SES-CD \> 50% from Baseline (or for participants with isolated ileal disease and a Baseline SES-CD of 4, at least a 2-point reduction from Baseline)

Secondary Outcome Measures

Name	Time	Method
Percentage of Participants With Endoscopic Remission	Week 12	Endoscopic remission: SES-CD ≤ 4 and at least a 2 point reduction versus baseline and no subscore greater than 1 in any individual variable
Change From Baseline of Functional Assessment of Chronic Illness Therapy (FACIT)-Fatigue	Week 12	The FACIT-Fatigue scale is a 13-item tool that measures an individual's level of fatigue during their usual daily activities over the past 7 days. Each of the fatigue and impact of fatigue items are measured on a 5-point Likert scale. The FACIT Fatigue Scale is the sum of the individual 13 scores and ranges from 0 to 52 where higher scores indicate better the quality of life. A positive change from baseline indicates improvement.
Percentage of Participants with a CR-100 Clinical Response	Week 4	CR-100 defined as at least a 100-point reduction from Baseline in CDAI
Percentage of Participants With Clinical Remission	Week 12	Clinical remission is defined as using the average daily Stool Frequency (SF) ≤ 2.8 and not worse than Baseline AND average daily Abdominal Pain (AP) score ≤ 1 and not worse than Baseline.
Percentage of Participants With Ulcer-Free Endoscopy	Week 12	Ulcer-free endoscopy: SES-CD ulcerated surface subscore of 0 in participants with SES-CD ulcerated surface subscore ≥ 1 at Baseline

Trial Locations

Locations (179)

Gi Alliance - Arizona Digestive Health - Sun City /ID# 268178; 🇺🇸 Sun City, Arizona, United States

Southern California Res. Ctr. /ID# 256612; 🇺🇸 Coronado, California, United States

Kindred Medical Institute - Corona /ID# 262075; 🇺🇸 Corona, California, United States

Valley Clinical Trials, LLC dba Flourish Research /ID# 256610; 🇺🇸 Covina, California, United States

Newport Huntington Medical Group /ID# 256622; 🇺🇸 Huntington Beach, California, United States

Om Research LLC /ID# 259645; 🇺🇸 Lancaster, California, United States

Om Research LLC /ID# 267523; 🇺🇸 Lancaster, California, United States

Clinnova Research - Orange /ID# 270138; 🇺🇸 Orange, California, United States

University of California, Irvine Medical Center /ID# 259677; 🇺🇸 Orange, California, United States

Prospective Research Innovations Inc. /ID# 267856; 🇺🇸 Rancho Cucamonga, California, United States

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