A Study of Efficacy and Safety of Rosnilimab in Subjects With Moderate to Severe Ulcerative Colitis (ROSETTA)

NCT ID: NCT06127043

Last Updated: 2025-10-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE2

Total Enrollment

132 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-12-04

Study Completion Date

2026-05-31

Brief Summary

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ROSETTA STUDY: This study will evaluate the safety, tolerability, and efficacy of Rosnilimab in subjects with moderate to severe ulcerative colitis (UC)

Detailed Description

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This is a Phase 2, randomized, double-blind, placebo-controlled, parallel-group, multicenter study to evaluate the efficacy, safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD), and immunogenicity of rosnilimab in subjects with moderate to severe ulcerative colitis (UC).

Conditions

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Ulcerative Colitis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Rosnilimab SC Dose 1

This arm will receive High dose Rosnilimab SC

Group Type EXPERIMENTAL

Rosnilimab

Intervention Type DRUG

PD-1 agonist antibody

Rosnilimab SC Dose 2

This arm will receive low dose Rosnilimab SC

Group Type EXPERIMENTAL

Rosnilimab

Intervention Type DRUG

PD-1 agonist antibody

Placebo

This arm will receive Placebo SC

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Administered via SC

Interventions

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Rosnilimab

PD-1 agonist antibody

Intervention Type DRUG

Placebo

Administered via SC

Intervention Type DRUG

Other Intervention Names

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ANB030

Eligibility Criteria

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Inclusion Criteria

* Male or female ≥18
* Participants with a clinical diagnosis of UC for prior to Day 1
* Subject has moderate to severe, active UC, defined as a mMS ≥ 5 with an endoscopy subscore ≥2
* Subject has had a surveillance colonoscopy that did not detect potential dysplasia or colon cancer performed within 1 year of Day 1.
* Subject has a history of an inadequate response, loss of response, or intolerance to any combination of at least 2 UC therapy classes defined as, but not limited to, aminosalicylates, corticosteroids, immunomodulators, calcineurin inhibitors, or advanced UC therapies (e.g., biologics, JAK inhibitors, oral S1P receptor modulators, etc.)

Exclusion Criteria

* Subject has a diagnosis of Crohn's disease or indeterminate colitis.
* Subject has a diagnosis of fulminant colitis and/or toxic megacolon.
* Subject has a history of an inadequate response, loss of response, or intolerance to any combination of 3 or more advanced UC therapy classes but not limited to, 1) anti-TNF antibodies (e.g., adalimumab, golimumab, infliximab), 2) other biologics (e.g., ustekinumab, vedolizumab), 3) oral JAK inhibitors (e.g., tofacitinib, upadacitinib), and 4) oral S1P receptor modulators (e.g., ozanimod).
* Subject has disease limited to the rectum (ulcerative proctitis)
* Subject has a history of colectomy (total or subtotal), ileoanal pouch, Kock pouch, or ileostomy or is planning bowel surgery.
* The subject had prior exposure to a PD-1 or PD-L1 agonist, antagonist, or modulator.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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AnaptysBio, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Zurab Machaidze, MD

Role: STUDY_DIRECTOR

AnaptysBio, Inc.

Locations

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AnaptysBio Investigational Site 10-115

Phoenix, Arizona, United States

Site Status

AnaptysBio Investigational Site 10-117

Garden Grove, California, United States

Site Status

AnaptysBio Investigational Site 10-112

Lancaster, California, United States

Site Status

AnaptysBio Investigational Site 10-129

Lancaster, California, United States

Site Status

AnaptysBio Investigational Site 10-108

San Jose, California, United States

Site Status

AnaptysBio Investigational Site 10-127

Brooksville, Florida, United States

Site Status

AnaptysBio Investigational Site 10-106

Miami, Florida, United States

Site Status

AnaptysBio Investigational Site 10-109

Miami Gardens, Florida, United States

Site Status

AnaptysBio Investigational Site 10-131

Orlando, Florida, United States

Site Status

AnaptysBio Investigational Site 10-123

Orlando, Florida, United States

Site Status

AnaptysBio Investigational Site 10-125

Tampa, Florida, United States

Site Status

AnaptysBio Investigational Site 10-122

Atlanta, Georgia, United States

Site Status

AnaptysBio Investigational Site 10-124

Oak Lawn, Illinois, United States

Site Status

AnaptysBio Investigational Site 10-118

Las Vegas, Nevada, United States

Site Status

AnaptysBio Investigational Site 10-133

Utica, New York, United States

Site Status

AnaptysBio Investigational Site 10-136

Cincinnati, Ohio, United States

Site Status

AnaptysBio Investigational Site 10-120

Norman, Oklahoma, United States

Site Status

AnaptysBio Investigational Site 10-103

Kingsport, Tennessee, United States

Site Status

AnaptysBio Investigational Site 10-104

Dallas, Texas, United States

Site Status

AnaptysBio Investigational Site 10-113

Garland, Texas, United States

Site Status

AnaptysBio Investigational Site 10-135

Georgetown, Texas, United States

Site Status

AnaptysBio Investigational Site 10-134

Lubbock, Texas, United States

Site Status

AnaptysBio Investigational Site 10-130

Southlake, Texas, United States

Site Status

AnaptysBio Investigational Site 10-132

Tyler, Texas, United States

Site Status

AnaptysBio Investigational Site 10-107

Seattle, Washington, United States

Site Status

AnaptysBio Investigational Site 12-101

Innsbruck, , Austria

Site Status

AnaptysBio Investigational Site 12-104

Salzburg, , Austria

Site Status

AnaptysBio Investigational Site 12-103

Sankt Pölten, , Austria

Site Status

AnaptysBio Investigational Site 12-102

Vienna, , Austria

Site Status

AnaptysBio Investigational Site 61-102

Sofia, , Bulgaria

Site Status

AnaptysBio Investigational Site 11-102

London, Ontario, Canada

Site Status

AnaptysBio Investigational Site 11-103

Montreal, Quebec, Canada

Site Status

AnaptysBio Investigational Site 11-105

Calgary, , Canada

Site Status

AnaptysBio Investigational Site 74-104

Rijeka, , Croatia

Site Status

AnaptysBio Investigational Site 74-101

Zagreb, , Croatia

Site Status

AnaptysBio Investigational Site 16-102

Nantes, , France

Site Status

AnaptysBio Investigational Site 16-103

Nantes, , France

Site Status

AnaptysBio Investigational Site 16-101

Tours, , France

Site Status

AnaptysBio Investigational Site 59-101

Tbilisi, Georgia, Georgia

Site Status

AnaptysBio Investigational Site 59-106

Tbilisi, , Georgia

Site Status

AnaptysBio Investigational Site 59-103

Tbilisi, , Georgia

Site Status

AnaptysBio Investigational Site 59-102

Tbilisi, , Georgia

Site Status

AnaptysBio Investigational Site 59-104

Tbilisi, , Georgia

Site Status

AnaptysBio Investigational Site 59-105

Tbilisi, , Georgia

Site Status

AnaptysBio Investigational Site 17-107

Berlin, , Germany

Site Status

AnaptysBio Investigational Site 17-106

Brandenburg, , Germany

Site Status

AnaptysBio Investigational Site 17-105

Dachau, , Germany

Site Status

AnaptysBio Investigational Site 17-101

Duisburg, , Germany

Site Status

AnaptysBio Investigational Site 17-110

Erlangen, , Germany

Site Status

AnaptysBio Investigational Site 17-108

Hamburg, , Germany

Site Status

AnaptysBio Investigational Site 17-103

Kiel, , Germany

Site Status

AnaptysBio Investigational Site 17-109

Ulm, , Germany

Site Status

AnaptysBio Investigational Site 20-112

Bologna, , Italy

Site Status

AnaptysBio Investigational Site 20-111

Cagliari, , Italy

Site Status

AnaptysBio Investigational Site 20-110

Catania, , Italy

Site Status

AnaptysBio Investigational Site 20-108

Legnano, , Italy

Site Status

AnaptysBio Investigational Site 20-105

Milan, , Italy

Site Status

AnaptysBio Investigational Site 20-107

Pavia, , Italy

Site Status

AnaptysBio Investigational Site 20-102

Rozzano, , Italy

Site Status

AnaptysBio Investigational Site 20-109

San Donato, , Italy

Site Status

AnaptysBio Investigational Site 20-104

San Giovanni, , Italy

Site Status

AnaptysBio Investigational Site 20-113

Turin, , Italy

Site Status

AnaptysBio Investigational Site 20-106

Udine, , Italy

Site Status

AnaptysBio Investigational Site 21-101

Amsterdam, , Netherlands

Site Status

AnaptysBio Investigational Site 30-108

Bydgoszcz, , Poland

Site Status

AnaptysBio Investigational Site 30-106

Częstochowa, , Poland

Site Status

AnaptysBio Investigational Site 30-112

Elblag, , Poland

Site Status

AnaptysBio Investigational Site 30-102

Katowice, , Poland

Site Status

AnaptysBio Investigational Site 30-115

Katowice, , Poland

Site Status

AnaptysBio Investigational Site 30-111

Krakow, , Poland

Site Status

AnaptysBio Investigational Site 30-123

Krakow, , Poland

Site Status

AnaptysBio Investigational Site 30-103

Lodz, , Poland

Site Status

AnaptysBio Investigational Site 30-119

Lodz, , Poland

Site Status

AnaptysBio Investigational Site 30-114

Lublin, , Poland

Site Status

AnaptysBio Investigational Site 30-104

Poznan, , Poland

Site Status

AnaptysBio Investigational Site 30-117

Poznan, , Poland

Site Status

AnaptysBio Investigational Site 30-120

Poznan, , Poland

Site Status

AnaptysBio Investigational Site 30-116

Rzeszów, , Poland

Site Status

AnaptysBio Investigational Site 30-113

Sopot, , Poland

Site Status

AnaptysBio Investigational Site 30-110

Torun, , Poland

Site Status

AnaptysBio Investigational Site 30-101

Warsaw, , Poland

Site Status

AnaptysBio Investigational Site 30-107

Warsaw, , Poland

Site Status

AnaptysBio Investigational Site 30-109

Warsaw, , Poland

Site Status

AnaptysBio Investigational Site 30-101

Bucharest, , Romania

Site Status

AnaptysBio Investigational Site 31-103

Cluj-Napoca, , Romania

Site Status

AnaptysBio Investigational Site 31-102

Timișoara, , Romania

Site Status

AnaptysBio Investigational Site 58-101

Belgrade, , Serbia

Site Status

AnaptysBio Investigational Site 58-103

Belgrade, , Serbia

Site Status

AnaptysBio Investigational Site 58-104

Belgrade, , Serbia

Site Status

AnaptysBio Investigational Site 58-105

Belgrade, , Serbia

Site Status

AnaptysBio Investigational Site 58-102

Zrenjanin, , Serbia

Site Status

AnaptysBio Investigational Site 24-102

Alicante, , Spain

Site Status

AnaptysBio Investigational Site 24-103

Lleida, , Spain

Site Status

AnaptysBio Investigational Site 27-103

Belfast, , United Kingdom

Site Status

AnaptysBio Investigational Site 27-102

Cambridge, , United Kingdom

Site Status

AnaptysBio Investigational Site 27-106

Liverpool, , United Kingdom

Site Status

AnaptysBio Investigational Site 27-101

London, , United Kingdom

Site Status

AnaptysBio Investigational Site 27-105

Runcorn, , United Kingdom

Site Status

AnaptysBio Investigational Site 27-107

Shrewsbury, , United Kingdom

Site Status

AnaptysBio Investigational Site 27-104

York, , United Kingdom

Site Status

Countries

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United States Austria Bulgaria Canada Croatia France Georgia Germany Italy Netherlands Poland Romania Serbia Spain United Kingdom

Other Identifiers

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ANB030-204 ROSETTA

Identifier Type: -

Identifier Source: org_study_id

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