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NCT Number: NCT04524611

Study Comparing Intravenous (IV)/Subcutaneous (SC) Risankizumab to IV/SC Ustekinumab to Assess Change in Crohn's Disease Activity Index (CDAI) in Adult Participants With Moderate to Severe Crohn's Disease (CD)

Crohn's disease (CD) is a long-lasting condition causing inflammation that can affect any part of the gut. This study will evaluate how well risankizumab works compared to ustekinumab. This study will assess change in Crohn's Disease Activity Index (CDAI).

Risankizumab is an investigational drug being developed for the treatment of Crohn's Disease (CD). Ustekinumab is an approved drug for the treatment of moderate and severe CD. Participants are randomly assigned to one of the three treatment groups. Each group receives a different treatment. There is a 1 in 2 chance that participants will be assigned to ustekinumab. Around 508 adult participants with moderate to severe CD will be enrolled in approximately 307 sites worldwide.

In Part 1, participants assigned to risankizumab will receive intravenous (IV) doses of risankizumab at Week 0, 4,8 and subcutaneous (SC) doses every 8 weeks thereafter through Week 48. Participants assigned to ustekinumab will receive intravenous (IV) dose of ustekinumab at Week 0 and subcutaneous (SC) doses every 8 weeks thereafter through Week 48. In Part 2, participants who received risankizumab in Part 1 and completed the Week 48 visit will continue to receive SC risankizumab for up to an additional 220 weeks.

There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.

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This study is active but is not currently recruiting participants.

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Key information

Conditions

Crohn's Disease (CD) Crohn Disease Digestive System Diseases Gastroenteritis Gastrointestinal Diseases Inflammatory Bowel Diseases Intestinal Diseases

Age range

18 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Hospital Britanico de Buenos Aires /ID# 223432, Ciudad Autonoma de Buenos Aire, Buenos Aires, Argentina

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Confirmed diagnosis of Crohn's disease (CD) for at least 3 months prior to Baseline.
  • Crohn's disease activity index (CDAI) score 220 - 450 at Baseline.
  • Confirmed diagnosis of moderate to severe Crohn's Disease as assessed by stool frequency (SF), abdominal pain (AP) score, and Simple Endoscopic score for CD (SES-CD).
  • Demonstrated intolerance or inadequate response to one or more anti-tumor necrosis factor (TNF) therapies.

Exclusion criteria

  • Current diagnosis of ulcerative colitis or indeterminate colitis.
  • Receipt of CD approved biologic agents prior to Baseline (as detailed in protocol), or any investigational biologic or other agent or procedure prior to Baseline (as detailed in protocol).
  • Prior exposure to p19 and/or p40 inhibitors (e.g., risankizumab and ustekinumab).
  • Currently know complications of CD (strictures, short bowel, etc).

Treatment and study plan

Risankizumab

Drug

Intravenous (IV) Infusion

Other names: ABBV-066, SKYRIZI

Ustekinumab

Drug

Intravenous (IV) infusion

Primary outcomes

  1. Percentage of Participants Achieving Clinical Remission at Week 24

    Time frame: Week 24

    Clinical remission is defined as Crohn's disease activity index (CDAI)<150.

  2. Percentage of Participants Achieving Endoscopic Remission

    Time frame: Week 48

    Endoscopic remission is defined as Simple Endoscopic Score for Crohn's Disease (SES-CD) <= 4 and at least a 2-point reduction versus Baseline and no sub score greater than 1 in any individual variable, as scored by a central reviewer.

  3. Number of Participants Reporting Adverse Events

    Time frame: Up to 220 Weeks

    An adverse event (AE) is defined as any untoward medical occurrence in a patient or clinical investigation participant administered a pharmaceutical product which does not necessarily have a causal relationship with this treatment. The investigator assesses the relationship of each event to the use of study. A serious adverse event (SAE) is an event that results in death, is life-threatening, requires or prolongs hospitalization, results in a congenital anomaly, persistent or significant disability/incapacity or is an important medical event that, based on medical judgment, may jeopardize the participant and may require medical or surgical intervention to prevent any of the outcomes listed above. Treatment-emergent adverse events/treatment-emergent serious adverse events (TEAEs/TESAEs) are defined as any event that began or worsened in severity on or after the first dose of study drug.

Secondary outcomes

  1. Percentage of Participants Achieving Clinical Remission at Week 48

    Time frame: Week 48

    Clinical remission is defined as Crohn's disease activity index (CDAI)<150.

  2. Percentage of Participants Achieving Endoscopic Response at Week 48

    Time frame: Week 48

    Endoscopic response is defined as decrease in Simple Endoscopic Score for Crohn's Disease (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).

  3. Percentage of Participants Achieving Endoscopic Response at Week 24

    Time frame: Week 24

    Endoscopic response is defined as decrease in Simple Endoscopic Score for Crohn's Disease (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).

  4. Percentage of Participants Achieving Steroid-Free Endoscopic Remission

    Time frame: Week 48

    Steroid-free endoscopic remission is defined as participants with endoscopic remission and not receiving steroids at Week 48.

  5. Percentage of Participants Achieving Steroid-Free Clinical Remission

    Time frame: Week 48

    Steroid-free clinical remission is defined as participants with clinical remission and not receiving steroids at Week 48.

Sponsors and collaborators

Lead sponsor

AbbVie

Industry

Registry information

Official study title

A Phase 3, Multicenter, Randomized, Efficacy Assessor-Blinded Study of Risankizumab Compared to Ustekinumab for the Treatment of Adult Subjects With Moderate to Severe Crohn's Disease Who Have Failed Anti-TNF Therapy

Acronym: SEQUENCE

Important dates

Study start
2020
Primary completion
2028
Study completion
2028
First posted
Aug 24, 2020
Registry last updated
Apr 13, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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