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A Phase 2 Open-Label, Multicenter Clinical Study of The Safety, Efficacy, Pharmacokinetic, and Pharmacodynamic Profiles of CGT9486 as a Single Agent in Patients with Advanced Systemic Mastocytosis

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-511407-42-00
Acronym
CGT9486-20-201
Enrollment
60
Registered
2024-06-06
Start date
2022-01-10
Completion date
Unknown
Last updated
2025-04-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Systemic Mastocytosis

Brief summary

Part 1: Dose Optimization - Safety assessments and dose modifications; - PK and pharmacodynamic assessments; - Overall response rate (ORR), Part 2 Stage 1: Dose Confirmation - Safety assessments and dose modifications - PK and pharmacodynamic assessments - Overall response rate (ORR), Part 2 Stage 2: Expansion - Overall response rate (ORR)

Detailed description

Part 1 and Part 2: Incidence of AEs, SAEs, AEs leading to dose modifications, and changes from baseline in laboratory results, Part 1 and Part 2: Duration Of Response (DOR), Time to Response (TTR), Progression Free Survival (PFS), Overall Survival (OS), Pure Pathologic Response (PPR), Part 1 and Part 2: Changes in the levels of serum tryptase, Part 1 and Part 2: Changes in the levels of KIT D816V mutation allele burden in blood and bone marrow, Part 1 and Part 2: Change in pathologic findings in the blood and bone marrow including mast cell infiltration, monocytosis, and eosinophilia, Part 1 and Part 2: Plasma concentrations of bezuclastinib, Part 1 and Part 2: Change from baseline in PGIS, PGIC, MC-QoL and MAS

Interventions

Sponsors

Cogent Biosciences Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Part 1: Dose Optimization - Safety assessments and dose modifications; - PK and pharmacodynamic assessments; - Overall response rate (ORR), Part 2 Stage 1: Dose Confirmation - Safety assessments and dose modifications - PK and pharmacodynamic assessments - Overall response rate (ORR), Part 2 Stage 2: Expansion - Overall response rate (ORR)

Secondary

MeasureTime frame
Part 1 and Part 2: Incidence of AEs, SAEs, AEs leading to dose modifications, and changes from baseline in laboratory results, Part 1 and Part 2: Duration Of Response (DOR), Time to Response (TTR), Progression Free Survival (PFS), Overall Survival (OS), Pure Pathologic Response (PPR), Part 1 and Part 2: Changes in the levels of serum tryptase, Part 1 and Part 2: Changes in the levels of KIT D816V mutation allele burden in blood and bone marrow, Part 1 and Part 2: Change in pathologic findings in the blood and bone marrow including mast cell infiltration, monocytosis, and eosinophilia, Part 1 and Part 2: Plasma concentrations of bezuclastinib, Part 1 and Part 2: Change from baseline in PGIS, PGIC, MC-QoL and MAS

Countries

Austria, Belgium, France, Germany, Italy, Netherlands, Norway, Poland, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026