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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT06819878




Registration number
NCT06819878
Ethics application status
Date submitted
6/02/2025
Date registered
11/02/2025
Date last updated
15/07/2025

Titles & IDs
Public title
A Study to Assess the Efficacy and Safety of Induction and Maintenance Therapy With Afimkibart (RO7790121) in Participants With Moderately to Severely Active Crohn's Disease
Scientific title
A Phase III, Multicenter, Double-Blind, Placebo-Controlled, Treat-Through Study to Assess the Efficacy and Safety of Induction and Maintenance Therapy With RO7790121 in Patients With Moderately to Severely Active Crohn's Disease
Secondary ID [1] 0 0
2024-513053-69-00
Secondary ID [2] 0 0
GA45331
Universal Trial Number (UTN)
Trial acronym
SIBERITE-1
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Moderately to Severely Active Crohns Disease 0 0
Condition category
Condition code
Oral and Gastrointestinal 0 0 0 0
Inflammatory bowel disease
Inflammatory and Immune System 0 0 0 0
Other inflammatory or immune system disorders
Oral and Gastrointestinal 0 0 0 0
Crohn's disease

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - Afimkibart
Treatment: Drugs - Placebo

Experimental: Arm 1: Afimkibart - Participants will receive afimkibart intravenously (IV) followed by afimkibart subcutaneous (SC) injection.

Experimental: Arm 2: Afimkibart - Participants will receive afimkibart IV followed by afimkibart SC injection.

Placebo comparator: Arm 3: Placebo - Participants will receive placebo IV followed by placebo SC.


Treatment: Drugs: Afimkibart
Afimkibart will be administered as IV infusion. Afimkibart will be administered as SC injection.

Treatment: Drugs: Placebo
Placebo matching IV afimkibart. Placebo matching SC afimkibart.

Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Percentage of Participants with Clinical Remission per Crohn's Disease Activity Index (CDAI) Score
Timepoint [1] 0 0
At Week 52
Primary outcome [2] 0 0
Percentage of Participants with Endoscopic Response
Timepoint [2] 0 0
At Week 52
Secondary outcome [1] 0 0
Percentage of Participants with Clinical Remission
Timepoint [1] 0 0
At Week 12
Secondary outcome [2] 0 0
Percentage of Participants with Endoscopic Response
Timepoint [2] 0 0
At Week 12
Secondary outcome [3] 0 0
Percentage of Participants with Symptomatic Remission
Timepoint [3] 0 0
At Week 12
Secondary outcome [4] 0 0
Percentage of Participants with Endoscopic Remission
Timepoint [4] 0 0
At Week 12
Secondary outcome [5] 0 0
Percentage of Participants with Ulcer-free Endoscopy
Timepoint [5] 0 0
At Week 12
Secondary outcome [6] 0 0
Average of Daily Number of Liquid or Very Soft Stools in the Past Week (SF)
Timepoint [6] 0 0
Baseline through Week 12
Secondary outcome [7] 0 0
Average of Daily Abdominal Pain Scores in the Past Week (APS)
Timepoint [7] 0 0
Baseline through Week 12
Secondary outcome [8] 0 0
Percentage of Participants with Endoscopic Remission
Timepoint [8] 0 0
At Week 52
Secondary outcome [9] 0 0
Percentage of Participants with Symptomatic Remission
Timepoint [9] 0 0
At Week 52
Secondary outcome [10] 0 0
Percentage of Participants with Corticosteroid-free Clinical Remission
Timepoint [10] 0 0
At Week 52
Secondary outcome [11] 0 0
Maintenance of Clinical Remission
Timepoint [11] 0 0
At Weeks 12 and 52
Secondary outcome [12] 0 0
Maintenance of Endoscopic Response
Timepoint [12] 0 0
At Weeks 12 and 52
Secondary outcome [13] 0 0
Percentage of Participants with Clinical Remission and Endoscopic Remission at Week 52
Timepoint [13] 0 0
At Week 52
Secondary outcome [14] 0 0
Percentage of Participants with Ulcer-free Endoscopy
Timepoint [14] 0 0
At Week 52
Secondary outcome [15] 0 0
Bowel Urgency
Timepoint [15] 0 0
Baseline through Week 12 and Week 52
Secondary outcome [16] 0 0
Fatigue
Timepoint [16] 0 0
Baseline to Week 12 and Week 52
Secondary outcome [17] 0 0
Inflammatory Bowel Disease Questionnaire (IBDQ) Score
Timepoint [17] 0 0
Baseline to Week 12 and Week 52
Secondary outcome [18] 0 0
Percentage of Participants with Clinical Remission: Among Biomarker-Defined Subgroups of Participants
Timepoint [18] 0 0
At Week 12
Secondary outcome [19] 0 0
Percentage of Participants with Clinical Remission: Among Biomarker-Defined Subgroups of Participants
Timepoint [19] 0 0
At Week 52
Secondary outcome [20] 0 0
Percentage of Participants with Endoscopic Response: Among Biomarker-Defined Subgroups of Participants
Timepoint [20] 0 0
At Week 12
Secondary outcome [21] 0 0
Percentage of Participants with Endoscopic Response: Among Biomarker-Defined Subgroups of Participants
Timepoint [21] 0 0
At Week 52
Secondary outcome [22] 0 0
Percentage of Participants with Clinical Response
Timepoint [22] 0 0
At Week 12
Secondary outcome [23] 0 0
Percentage of Participants with Symptomatic Response
Timepoint [23] 0 0
At Week 12
Secondary outcome [24] 0 0
Overall Change in CD Symptoms
Timepoint [24] 0 0
Baseline to Weeks 2, 6, 12 and 52
Secondary outcome [25] 0 0
Overall Severity in CD Symptoms
Timepoint [25] 0 0
Baseline to Weeks 2, 6, 12 and 52
Secondary outcome [26] 0 0
Change in General Well-being
Timepoint [26] 0 0
Baseline through Week 52
Secondary outcome [27] 0 0
Incidence and Severity of Adverse Events (AEs)
Timepoint [27] 0 0
Up to 70 Weeks after Baseline
Secondary outcome [28] 0 0
Percentage of Participants with a Presence of Draining Fistulas
Timepoint [28] 0 0
Baseline through Week 12 and Week 52

Eligibility
Key inclusion criteria
* Confirmed diagnosis of CD
* Moderately to severely active CD
* Bodyweight >= 40 kilogram (kg)
* Demonstrated inadequate response, loss of response and/or intolerance to at least one protocol-specified conventional or advanced CD therapy
* Males and females of childbearing potential must meet protocol criteria for contraception requirements
Minimum age
16 Years
Maximum age
80 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
* Current diagnosis of ulcerative colitis (UC) or indeterminate colitis, ischemic colitis, infectious colitis, radiation colitis, microscopic colitis
* Participant with a history of >= 3 bowel resections (> 2 missing segments of the 5 following segments: terminal ilelium, right colon, transverse colon, sigmoid and left colon, and rectum)
* Diagnosis of short gut or short bowel syndrome
* Presence of an ileostomy, colostomy or ileoanal pouch
* Participants with symptomatic bowel strictures, fulminant colitis, or toxic megacolon
* Presence of abdominal or perianal abscess
* Presence of rectovaginal, enterovaginal, high output enterocutaneous fistula, enterovesical fistulas or perianal fistulas with >3 openings
* Current diagnosis or suspicion of primary sclerosing cholangitis
* Pregnancy or breastfeeding, or intention of becoming pregnant during the study
* Any past or current evidence of cancer of gastrointestinal tract, definite low-grade or high-grade colonic dysplasia
* History of non-gastrointestinal cancer, with the exception of adequately treated non-metastatic basal cell or squamous cell skin cancer or in situ cervical cancer
* Evidence of infection with Clostridioides difficile (C. difficile; formerly known as Clostridium difficile), cytomegalovirus (CMV), human immunodeficiency virus (HIV), Hepatitis B (HBV), Hepatitis C (HCV) during screening
* Has evidence of active tuberculosis (TB), latent TB not successfully treated (per local guidance) or inadequately treated TB
* Has received protocol-specified prohibited medicines, including known exposure to any type of anti-TL1A therapy

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s


The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Phase 3
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
NSW,QLD
Recruitment hospital [1] 0 0
Royal Prince Alfred Hospital - Sydney
Recruitment hospital [2] 0 0
Mater Misericordiae Limited - South Brisbane
Recruitment postcode(s) [1] 0 0
2050 - Sydney
Recruitment postcode(s) [2] 0 0
4101 - South Brisbane
Recruitment outside Australia
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Bruxelles
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Edegem
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Gent
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Hasselt
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Madrid
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Murcia
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Taichung City
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Bangkok
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Thailand
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Songkhla
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United Kingdom
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London

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
Hoffmann-La Roche
Address
Country
Other collaborator category [1] 0 0
Commercial sector/industry
Name [1] 0 0
Chugai Pharmaceutical
Address [1] 0 0
Country [1] 0 0

Ethics approval
Ethics application status

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Clinical Trials
Address 0 0
Hoffmann-La Roche
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Reference Study ID Number: GA45331 https://forpatients.roche.com/
Address 0 0
Country 0 0
Phone 0 0
888-662-6728 (U.S. and Canada)
Fax 0 0
Email 0 0
Contact person for scientific queries

Data sharing statement


What supporting documents are/will be available?

No Supporting Document Provided


Results publications and other study-related documents

No documents have been uploaded by study researchers.