Clinical trial • Phase III • Immunology

DUVAKITUG for Crohn's disease

Phase III trial of DUVAKITUG for Crohn's disease.

Overview

Trial Therapeutic Area
Immunology
Trial Disease
Crohn's disease
Trial Stage
Phase III
Drug Modality
Monoclonal antibody
Paediatric Trial
Yes

Key dates

Initial CTIS Submission Date
20-10-2025
First CTIS Authorization Date
24-02-2026

Trial design

Randomised, matched placebo for test product (placebo comparator); no dose specified in the ctis data-controlled Phase III trial.

Randomised
Yes
Comparator
Matched placebo for test product (placebo comparator); no dose specified in the CTIS data
Target Sample Size
1358
Trial Duration For Participant
84

Eligibility

Recruits 1358 paediatric patients.

Vulnerable Population
The trial selects vulnerable populations (isVulnerablePopulationSelected = true) and permits inclusion of adolescents aged 16 to <18 years where locally allowed (must meet Tanner Stage 5). Age-specific information and consent/assent documents are provided (e.g. L1_SIS and ICF_Adolescent, L1_SIS and ICF_Parent, Pediatric Assent and Parent ICF documents are included). Minors require assent and involvement of parent/legal representative as per country-specific procedures; documents exist in multiple country/language variants.

Inclusion criteria

  • {"criterion_text":"- Participants aged ≥18 and ≤80 years of age at Screening. Where permitted locally, participants 16 to <18 years of age who meet the definition of Tanner Stage 5 for development"}
  • {"criterion_text":"- Confirmed diagnosis of moderately to severely active Crohn’s Disease (CD) for at least 3 months prior to baseline"}
  • {"criterion_text":"- Demonstrated inadequate response, have shown loss of response or intolerance to conventional therapies or advanced therapies (ATs)"}

Exclusion criteria

  • {"criterion_text":"- Participants with Ulcerative Colitis (UC) or indeterminate colitis"}
  • {"criterion_text":"- Participants with two entire missing segments of the: terminal ileum, right colon transverse colon, sigmoid and left colon, and rectum"}
  • {"criterion_text":"- Prior or current high-grade gastrointestinal (GI) dysplasia"}
  • {"criterion_text":"- Participants on treatment with but not on stable doses of conventional therapy prior to baseline"}
  • {"criterion_text":"- Participants receiving prohibited medications or therapies"}
  • {"criterion_text":"- Participants with previous exposure to anti-TL1A investigational therapy"}

Endpoints

Primary endpoints

  • {"endpoint_text":"- Sub-Study 2: Co-primary endpoints US/FDA: Proportion of participants achieving clinical remission per Crohn’s Disease Activity Index (CDAI) at Week 12","definition_or_measurement_approach":"Clinical remission measured per Crohn’s Disease Activity Index (CDAI) at Week 12"}
  • {"endpoint_text":"- Sub-Study 2: Co-primary endpoints US/FDA: Proportion of participants achieving endoscopic response (Simple Endoscopic Score for Crohn's Disease [SES-CD]) at Week 12","definition_or_measurement_approach":"Endoscopic response measured by Simple Endoscopic Score for Crohn's Disease (SES-CD) at Week 12"}
  • {"endpoint_text":"- Sub-Study 2: Co-primary endpoints EU/EMA: Proportion of participants achieving clinical remission per 2-item patient-reported outcome (PRO-2) at Week 12","definition_or_measurement_approach":"Clinical remission per the 2-item patient-reported outcome (PRO-2) at Week 12"}
  • {"endpoint_text":"- Sub-Study 2: Co-primary endpoints EU/EMA: Proportion of participants achieving endoscopic response (SES-CD) at Week 12","definition_or_measurement_approach":"Endoscopic response measured by SES-CD at Week 12"}

Secondary endpoints

  • {"endpoint_text":"- Sub-Study 2: Proportion of participants achieving CDAI clinical response at Week 12","definition_or_measurement_approach":"Clinical response measured by CDAI at Week 12"}
  • {"endpoint_text":"- Sub-study 2: Proportion of participants achieving CDAI clinical response and endoscopic response (SES-CD) at Week 12","definition_or_measurement_approach":"Combined endpoint: CDAI clinical response and SES-CD endoscopic response at Week 12"}
  • {"endpoint_text":"- Sub-study 2: Proportion of participants achieving endoscopic SES- CD remission at Week 12","definition_or_measurement_approach":"Endoscopic remission assessed by SES-CD at Week 12"}
  • {"endpoint_text":"- Sub-study 2: US/FDA: Proportion of participants achieving clinical remission per PRO-2 at Week 12","definition_or_measurement_approach":"Clinical remission per PRO-2 at Week 12 (US/FDA)"}
  • {"endpoint_text":"- Sub-study 2: EU/EMA: Proportion of participants achieving clinical remission per CDAI at Week 12","definition_or_measurement_approach":"Clinical remission measured by CDAI at Week 12 (EU/EMA)"}
  • {"endpoint_text":"- Sub-study 2: Proportion of participants achieving ulcer-free endoscopy (in the subset of participants with ulcers at baseline) at Week 12","definition_or_measurement_approach":"Absence of ulcers on endoscopy at Week 12 in participants with baseline ulcers"}
  • {"endpoint_text":"- Sub-study 2: Change from baseline in Patient-Reported Outcomes Measurement Information System (PROMIS)-Fatigue Short Form 7a T-score at Week 12","definition_or_measurement_approach":"Change from baseline in PROMIS-Fatigue Short Form 7a T-score at Week 12"}
  • {"endpoint_text":"- Sub-study 2: Proportion of participants achieving CDAI clinical response at Week 4","definition_or_measurement_approach":"CDAI clinical response measured at Week 4"}
  • {"endpoint_text":"- Sub-study 2: US/FDA: Proportion of participants achieving corticosteroid free remission (in the subset of participants with corticosteroids at baseline) per CDAI at Week 12","definition_or_measurement_approach":"CDAI-defined corticosteroid-free remission at Week 12 in participants on corticosteroids at baseline (US/FDA)"}
  • {"endpoint_text":"- Sub-study 2: EU/EMA: Proportion of participants achieving corticosteroid free remission per PRO-2 (in the subset of participants with corticosteroids at baseline) at Week 12","definition_or_measurement_approach":"PRO-2-defined corticosteroid-free remission at Week 12 in participants on corticosteroids at baseline (EU/EMA)"}
  • {"endpoint_text":"- Sub-study 2: Proportion of participants achieving CDAI clinical remission and endoscopic remission (SES-CD) at Week 12","definition_or_measurement_approach":"CDAI clinical remission plus SES-CD endoscopic remission at Week 12"}
  • {"endpoint_text":"- Sub-study 2: Change from baseline in Inflammatory Bowel Disease Questionnaire (IBDQ) total score at Week 12","definition_or_measurement_approach":"Change from baseline in IBDQ total score at Week 12"}
  • {"endpoint_text":"- Sub-study 2: Proportion of participants with no bowel urgency by Numeric Rating Scale (NRS) at Week 12","definition_or_measurement_approach":"Proportion reporting no bowel urgency by NRS at Week 12"}
  • {"endpoint_text":"- Sub-study 2: Proportion of participants with CD-related hospitalizations by Week 12","definition_or_measurement_approach":"Proportion with Crohn's disease–related hospitalizations by Week 12"}
  • {"endpoint_text":"- Sub-study 2: Number of participants with any Treatment Emergent Adverse Events (TEAEs), treatment-emergent adverse event of special interest (TEAESIs), treatment-emergent serious adverse event (TESAEs), and TEAEs leading to permanent study intervention discontinuation","definition_or_measurement_approach":"Counts of TEAEs, TEAESIs, TESAEs, and TEAEs leading to permanent discontinuation during treatment"}
  • {"endpoint_text":"- Sub-study 2: Serum concentrations of duvakitug","definition_or_measurement_approach":"Pharmacokinetic measurement: serum concentrations of duvakitug"}
  • {"endpoint_text":"- Sub-study 2: Incidence of treatment-emergent Anti-drug Antibodies (ADA) against duvakitug","definition_or_measurement_approach":"Incidence of treatment-emergent anti-drug antibodies (ADA) during treatment"}

Recruitment

Registry Or Advocacy Recruitment
True; Patient Advocacy groups (Patient Advocacy Fact Sheet documents present; specific advocacy organisation names not specified)
Planned Sample Size
1358
Recruitment Window Months
43
Consent Approach
Adults provide informed consent using country-specific ICFs. Where adolescents (16 to <18 years) are permitted locally, age-appropriate assent forms and parent/legal representative consent forms are provided (documents: L1_SIS and ICF_Adolescent, L1_SIS and ICF_Parent, Pediatric Assent, L1_SIS and ICF 16-17 years, etc.). Pregnancy follow-up and specific pregnancy information/ICF documents are provided. Multiple language versions of participant information and consent forms are available (e.g., English, French, Dutch, Hungarian, Polish, Spanish, Greek, Czech, Slovak, Italian, Lithuanian and other country/language variants as listed in the document inventory).

Methods

  • Physician referral letters (country-specific physician referral materials provided)
  • Patient-facing materials: leaflets and posters (K2 Recruitment materials: Patient Leaflet, Patient Poster)
  • Patient Advocacy Fact Sheet (materials provided to advocacy groups / for patient advocacy outreach)
  • Patient referral contact letters (materials for referral/contact)
  • Site-based recruitment arrangements (K1 recruitment arrangements documents for multiple countries)

Sponsor

Primary sponsor

Full Name
Sanofi-Aventis Recherche & Developpement
Organisation Type
Pharmaceutical company
Country Of Registered Address
France

Contract research organisations

Name
Psi Cro AG
Responsibilities
Clinical Outcomes Assessment Instrument (eCOA), Central Medical Reading or Imaging Reading, Central laboratory, Translation of Clinical Trial Materials (No sponsor QC)
Name
Psi CRO Greece
Responsibilities
Monitoring, regulatory, study startup
Name
ESMS Global Limited
Responsibilities
Centralized 24-Hour Emergency System: eSMS
Name
Teckro Limited
Responsibilities
Application for sites to get access to study documents/Q&A - protocol application
Name
Fisher Clinical Services UK Limited
Name
MARKEN Germany GmbH
Name
Suvoda LLC

Third parties

  • {"country":"Switzerland","full_name":"Psi Cro AG","duties_or_roles":"Clinical Outcomes Assessment Instrument (eCOA), Central Medical Reading or Imaging Reading, Central laboratory, Translation of Clinical Trial Materials (No sponsor QC)","organisation_type":"Pharmaceutical company"}
  • {"country":"Greece","full_name":"Psi CRO Greece","duties_or_roles":"Monitoring, regulatory, study startup","organisation_type":"Pharmaceutical company"}
  • {"country":"Germany","full_name":"MARKEN Germany GmbH","duties_or_roles":"","organisation_type":"Pharmaceutical company"}
  • {"country":"United Kingdom","full_name":"ESMS Global Limited","duties_or_roles":"Centralized 24-Hour Emergency System: eSMS","organisation_type":"Pharmaceutical company"}
  • {"country":"United Kingdom","full_name":"Fisher Clinical Services UK Limited","duties_or_roles":"","organisation_type":"Pharmaceutical company"}
  • {"country":"Ireland","full_name":"Teckro Limited","duties_or_roles":"Application for sites to get access to study documents/Q&A - protocol application","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Suvoda LLC","duties_or_roles":"","organisation_type":"Non-Pharmaceutical company"}

Investigational products

Investigational Product Name
Duvakitug
Active Substance
DUVAKITUG
Modality
Monoclonal antibody
Routes Of Administration
SUBCUTANEOUS INJECTION
Route
SUBCUTANEOUS INJECTION
Authorisation Status
prodAuthStatus: 1
Investigational Product Name
Matched placebo for test product
Modality
Other

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