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A Study to Assess the Efficacy and Safety of Subcutaneous Induction Therapy With Afimkibart in Participants With Moderately to Severely Active Ulcerative Colitis (AMETRINE-SC)

22 oktober 2026 uppdaterad av: Hoffmann-La Roche

A Phase III, Multicenter, Double-Blind Placebo-Controlled Study to Assess the Efficacy and Safety of Subcutaneous Induction Therapy With Afimkibart in Patients With Moderately to Severely Active Ulcerative Colitis

The purpose of this study is to assess the efficacy and safety of subcutaneous induction with afimkibart in participants with moderately to severely active ulcerative colitis (UC).

Studieöversikt

Studietyp

Interventionell

Inskrivning (Beräknad)

350

Fas

  • Fas 3

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

  • Namn: Fastest response: use the inquiry form. https://www.gene.com/contact-us/submit-medical-inquiry

Studera Kontakt Backup

  • Namn: Reference Study ID Number: CA46523 https://forpatients.roche.com/ No attachments to email below.
  • Telefonnummer: 888-662-6728 (U.S. and Canada)
  • E-post: global-roche-genentech-trials@gene.com

Studieorter

    • Tennessee
      • Cordova, Tennessee, Förenta staterna, 38018
        • Rekrytering
        • Gastro One

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

16 år till 80 år (Barn, Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  • Confirmed diagnosis of UC.
  • Moderately to severely active UC assessed by modified Mayo Score (mMS).
  • Bodyweight >= 40 kilogram (kg).
  • Up to date with colorectal cancer (CRC) screening performed according to local standards.
  • Demonstrated inadequate response, loss of response and/or intolerance to at least one protocol-specified conventional or advanced UC therapy.
  • Females of childbearing potential must meet protocol criteria for contraception requirements.

Exclusion Criteria:

  • Currently known complications of UC (e.g. fulminant colitis, toxic megacolon).
  • Current diagnosis of Crohn's disease (CD) or indeterminate colitis, microscopic colitis, ischemic colitis, infectious colitis, radiation colitis.
  • Presence of an ostomy or ileoanal pouch.
  • Current diagnosis or suspicion of primary sclerosing cholangitis.
  • Pregnancy or breastfeeding, or intention of becoming pregnant during the study.
  • Past or current evidence of definite low-grade or high-grade colonic dysplasia or adenomas or neoplasia not completely removed.
  • History of malignancy within 5 years, with the exception of malignancies adequately treated with resection for non-metastatic basal cell or squamous cell 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).
  • 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.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Fyrdubbla

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Afimkibart

Participants will receive afimkibart administered as subcutaneous (SC) injection.

Afimkibart will be administered as SC injection.

Andra namn:
  • RVT-3101
  • PF-06480605
  • RO7790121
Placebo-jämförare: Placebo

Participants will receive placebo adminsitered as SC injection.

Placebo will be administered as SC injection.

Vad mäter studien?

Primära resultatmått

Resultatmått
Tidsram
Percentage of Participants With Clinical Remission
Tidsram: At Week 12
At Week 12

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change From Baseline in Stool Frequency Subscore (SFS)
Tidsram: From Baseline up to Week 12

The Stool Frequency Subscore (SFS) is measured on a scale from 0 (normal number of stools) to 3 (5 or more stools than normal)

From Baseline up to Week 12
Change From Baseline in Rectal Bleeding Subscore (RBS)
Tidsram: From Baseline up to Week 12

The Rectal Bleeding Subscore (RBS) is measured on a scale from 0 (no blood seen) to 3 (blood alone passed)

From Baseline up to Week 12
Percentage of Participants With Symptomatic Response
Tidsram: At Week 4
At Week 4
Percentage of Participants With Endoscopic Improvement
Tidsram: At Week 12 and Week 24
At Week 12 and Week 24
Percentage of Participants With Endoscopic Remission
Tidsram: At Week 12 and Week 24
At Week 12 and Week 24
Percentage of Participants With Clinical Response
Tidsram: At Week 12
At Week 12
Percentage of Participants With Histologic-Endoscopic Mucosal Improvement
Tidsram: At Week 12 and Week 24
At Week 12 and Week 24
Percentage of Participants With Clinical Remission
Tidsram: At Week 24
At Week 24
Percentage of Participants With Maintenance of Remission
Tidsram: At Week 12 and Week 24
At Week 12 and Week 24
Percentage of Participants With Histologic Improvement
Tidsram: At Week 24
At Week 24
Change From Baseline in Bowel Urgency
Tidsram: From Baseline through Week 12 and Week 24

Bowel urgency will be assessed using two self-reported items over the past 24 hours: presence of bowel urgency (Yes/No) and severity on an 11-point numerical rating scale from 0 (no urgency) to 10 (worst possible urgency)

From Baseline through Week 12 and Week 24
Change From Baseline in Abdominal Pain
Tidsram: From Baseline through Week 12 and Week 24

Abdominal pain will be assessed using two self-reported items over the past 24 hours: presence of abdominal pain (Yes/No) and severity on an 11-point numerical rating scale from 0 (no pain) to 10 (worst possible pain)

From Baseline through Week 12 and Week 24
Change From Baseline in Fatigue
Tidsram: From Baseline through Week 12 and Week 24

Change in fatigue will be assessed by Functional Assessment of Chronic Illness Therapy (FACIT)-Fatigue scale. FACIT-Fatigue is a 13-item self-reported assessment of the level and impact of fatigue. The overall FACIT-Fatigue score ranges between 0 and 52, with higher scores associated with better quality of life concerns related to fatigue

From Baseline through Week 12 and Week 24
Change From Baseline in Health-Related Quality of Life
Tidsram: From Baseline through Week 12 and Week 24

Change in health-related quality of life will be assessed by Inflammatory Bowel Disease Questionnaire (IBDQ) score. IBDQ is a 32-item self-reported assessment of health-related quality of life in participants with inflammatory bowel disease. The overall IBDQ score ranges from 32 to 224, with higher scores associated with better health-related quality of life

From Baseline through Week 12 and Week 24
Change From Baseline in Overall UC Symptoms
Tidsram: Baseline, Week 2, Week 12 and Week 24

Change in overall UC symptoms will be assessed by Patient Global Impression of Change (PGIC). PGIC measures overall change in ulcerative colitis symptoms from "Much better" to "Much worse"

Baseline, Week 2, Week 12 and Week 24
Change From Baseline in Overall Severity in UC Symptoms
Tidsram: Baseline, Week 2, Week 12 and Week 24

Change in overall severity of UC symptoms will be assessed by Patient Global Impression of Severity (PGIS). PGIS measures severity of ulcerative colitis symptoms from "None" to "Very severe"

Baseline, Week 2, Week 12 and Week 24
Incidence and Severity of Adverse Events (AEs)
Tidsram: From Baseline up to approximately 42 Weeks
From Baseline up to approximately 42 Weeks

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Samarbetspartners

Utredare

  • Studierektor: Clinical Trials, Hoffmann-La Roche

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Beräknad)

15 november 2026

Primärt slutförande (Beräknad)

31 maj 2028

Avslutad studie (Beräknad)

31 december 2030

Studieregistreringsdatum

Först inskickad

10 september 2026

Först inskickad som uppfyllde QC-kriterierna

22 september 2026

Första postat (Faktisk)

29 september 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

26 oktober 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

22 oktober 2026

Senast verifierad

1 oktober 2026

Mer information

Termer relaterade till denna studie

Andra studie-ID-nummer

  • CA46523
  • 2026-526684-37-00 (Ctis)

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

JA

IPD-planbeskrivning

For eligible studies, qualified researchers may request access to individual patient level clinical data. See Roche's commitment to transparency of clinical study information here: https://go.roche.com/data_sharing

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Ja

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

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