The study consists of 4 sub-studies, as follows: * Sub-study 1 (Randomized, double-blind, placebo controlled study) to evaluate the efficacy and safety of risankizumab versus placebo as maintenance therapy in participants with moderately to severely active Crohn's disease (CD) who responded to intravenous risankizumab induction treatment in Study M16-006 or Study M15-991; * Sub-study 2 (Randomized, exploratory maintenance study) to evaluate the efficacy and safety of two different dosing regimens for risankizumab as maintenance therapy in participants who responded to induction treatment in Study M16-006 or Study M15-991; * Sub-study 3 (Open-label, long-term extension study) to evaluate long-term safety of risankizumab in participants who completed Sub-study 1, Sub-study 2, another AbbVie risankizumab Crohn's disease study, or participants who responded to induction treatment in Study M16-006 or Study M15-991 with no final endoscopy due to the Covid-19 pandemic. Additional objectives are to further investigate long-term efficacy and tolerability of risankizumab; * Sub-study 4 (Open-label On Body Injector (OBI) administration and long-term extension study) to evaluate patient-reported outcomes, efficacy, safety, tolerability, and pharmacokinetics of risankizumab administered via OBI in participants who are receiving maintenance treatment with risankizumab. * OL CTE to ensure uninterrupted care in accordance with local regulations until risankizumab is commercially available for participants who completed Sub-study 3, Sub-study 4.
Age range
16 Years – 80 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Sub-Study 1: Percentage of Participants With Crohn's Disease Activity Index (CDAI) Clinical Remission
Timeframe: Week 52
Sub-Study 1: Percentage of Participants With Endoscopic Response
Timeframe: Week 52
Sub-Study 3: Number of Participants With Adverse Events
Timeframe: Up to Week 220
Sub-Study 4: Percentage of Participants With an Observer Rating of Successful Participant Self Administration
Timeframe: Up to Week 16
Sub-Study 4: Percentage of Participants who had no Potential Hazards
Timeframe: Up to Week 16
Sub-Study 4: Percentage of Participants Rating of Acceptability Using Self-Injection Assessment Questionnaire (SIAQ) at Weeks 0, 8, 16
Timeframe: Up to Week 16
Sub-Study 4: Percentage of Participants in CDAI Clinical Remission at Week 0, 16
Timeframe: Up to Week 16