MedPath

(Apex) Bezuclastinib in Patients With Advanced Systemic Mastocytosis

Phase 2
Recruiting
Conditions
Advanced Systemic Mastocytosis (AdvSM)
SM With an Associated Hematologic Neoplasm (SM-AHN)
Mast Cell Leukemia (MCL)
Aggressive Systemic Mastocytosis (ASM)
Interventions
Registration Number
NCT04996875
Lead Sponsor
Cogent Biosciences, Inc.
Brief Summary

This is an open-label, two-part Phase 2 study investigating CGT9486 for the treatment of patients with Advanced Systemic Mastocytosis (AdvSM), including patients with Aggressive SM (ASM), SM with Associated Hematologic Neoplasm (SM-AHN), and Mast Cell Leukemia (MCL).

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
140
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
bezuclastinibbezuclastinib-
Primary Outcome Measures
NameTimeMethod
Part II: - Determine efficacy of bezuclastinib as measured by mIWG Objective Response Rate (ORR) - Confirm the exposure-response relationship of bezuclastinib18 months
Part I: Identify clinically active and tolerable exposures of bezuclastinib in patients with AdvSM18 months
Secondary Outcome Measures
NameTimeMethod
Pure Pathologic Response (PPR)18 months

Months

Safety of CGT9486 as assessed by incidence of Adverse Events (AEs)18 months

Incidence of AEs according to CTCAE version 5.0 or higher

To determine the effects of bezuclastinib on mutation allele burden.18 months

Percentage change in KIT D816V

To determine the effects of bezuclastinib on serum tryptase.18 months

Percentage change in Serum Tryptase

To assess the pharmacokinetics of bezuclastinib in subjects with AdvSM.18 months

Percentage change in plasma concentrations of bezuclastinib

Change from baseline in histopathologic findings in blood and bone marrow18 months

Percentage change in mast cell infiltration in the bone marrow and percentage change in eosinophilia and monocytosis in the blood

Change in spleen and liver volume by imaging18 months

Percentage change

Duration of Response (DOR)18 months

Months

Time to Response (TTR)18 months

Months

Progression Free Survival (PFS)18 Months

Months

Overall Survival (OS)18 months

Months

Trial Locations

Locations (42)

University of Alabama at Birmingham (UAB) Hospital

🇺🇸

Birmingham, Alabama, United States

Mayo Clinic Arizona

🇺🇸

Phoenix, Arizona, United States

City of Hope Comprehensive Cancer Center

🇺🇸

Duarte, California, United States

UCLA Medical Center

🇺🇸

Los Angeles, California, United States

Stanford Cancer Institute

🇺🇸

Stanford, California, United States

Galiz Research

🇺🇸

Hialeah, Florida, United States

Winship Cancer Institute - Emory University

🇺🇸

Atlanta, Georgia, United States

Rush University Medical Center

🇺🇸

Chicago, Illinois, United States

Dana-Farber Cancer Institute

🇺🇸

Boston, Massachusetts, United States

Columbia University Irving Medical Center

🇺🇸

New York, New York, United States

Cleveland Clinic Taussig Cancer Center

🇺🇸

Cleveland, Ohio, United States

MUSC Health University Medical Center

🇺🇸

Charleston, South Carolina, United States

The University of Texas MD Anderson Cancer Center

🇺🇸

Houston, Texas, United States

Huntsman Cancer Institute - University of Utah Health

🇺🇸

Salt Lake City, Utah, United States

Nepean Hospital

🇦🇺

Kingswood, New South Wales, Australia

Gold Coast University Hospital

🇦🇺

Southport, Queensland, Australia

Peter MacCallum Cancer Centre

🇦🇺

Melbourne N., Victoria, Australia

AKH Wien, Universitatsklinikum

🇦🇹

Vienna, Austria

CHU de Liege

🇧🇪

Liège, Belgium

University of Alberta Hospital

🇨🇦

Edmonton, Alberta, Canada

St. Michael's Hospital - Unity Health Toronto

🇨🇦

Toronto, Ontario, Canada

Necker-Enfants Malades Hospital

🇫🇷

Paris, France

Centre Hospitalier Universitaire (CHU) de Poitiers

🇫🇷

Poitiers, France

Centre Hospitalier Universitaire (CHU) de Toulouse

🇫🇷

Toulouse, France

University Hospital Aachen

🇩🇪

Aachen, Germany

Universitätsklinikum Freiburg

🇩🇪

Freiburg, Germany

UKSH Campus Lubeck

🇩🇪

Lubeck, Germany

Universitätsklinikum Mannheim

🇩🇪

Mannheim, Germany

IRCCS Azienda Ospedaliero Universitaria di Bologna

🇮🇹

Bologna, Italy

Azienda Ospedaliero Universitaria Careggi

🇮🇹

Florence, Italy

AOU San Giovanni di Dio e Ruggi dAragonia

🇮🇹

Salerno, Italy

Azienda Ospidaleira Universitaria Integrata Verona

🇮🇹

Verona, Italy

University Medical Center Groningen

🇳🇱

Groningen, Netherlands

Oslo University Hospital

🇳🇴

Oslo, Norway

Public University Hospital No. 1 in Lublin

🇵🇱

Lublin, Poland

Hospital Universitario Vall d'Hebron

🇪🇸

Barcelona, Spain

Institut Català d'Oncologia - Hospital Duran i Reynals

🇪🇸

Barcelona, Spain

Hospital Universitario Ramón y Cajal

🇪🇸

Madrid, Spain

Universitätsspital Basel

🇨🇭

Basel, Switzerland

Leeds Teaching Hospitals NHS Trust

🇬🇧

Leeds, United Kingdom

University College London Hospital - NHS Foundation Trust

🇬🇧

London, United Kingdom

Guy's Hospital - NHS Foundation Trust

🇬🇧

London, United Kingdom

© Copyright 2025. All Rights Reserved by MedPath