Bosutinib in Pediatric Patients With Newly Diagnosed Chronic Phase or Resistant/Intolerant Ph + Chronic Myeloid Leukemia

Blastic Phase Chronic Myelogenous Leukemia Clinical Trial

Official title: A Phase I/II Study of Bosutinib in Pediatric Patients With Newly Diagnosed Chronic Phase or Resistant/Intolerant Ph + Chronic Myeloid Leukemia", Study ITCC-054/COG-AAML1921

Status Active, not recruiting

Clinical Trial Summary

This is a Phase 1-2, multicenter, international, single-arm, open-label study designed to identify a recommended dose of bosutinib administered orally once daily in pediatric patients with newly diagnosed chronic phase Ph+ CML (ND CML) and pediatric patients with Ph+CML who have received at least one prior TKI therapy (R/I CML), to preliminary estimate the safety and tolerability and efficacy, and to evaluate the PK of bosutinib in this patient population.

Clinical Trial Description

The Phase 1 part of the study employs a 6+4 design (no DLT in 6 patients or 1 DLT in 10 patients) and incorporates additional PK information before escalating to the next dose level. If there is unacceptable toxicity or if PK results have exceeded the acceptable exposure levels for the adult equivalent dose, further dose escalation will be prohibited. The Recommended Phase 2 Dose (RP2D) is defined as the dose that results in equivalent(approximately ±20% of the adult values) PK exposure to 500 mg/day in adults and with 0 of 6 or <2 DLTs observed out of 10 evaluable patients with Ph+ CML and resistance or intolerance to prior TKI therapy. The phase 2 part of the study will enroll the following patient populations.

• Newly diagnosed (ND): newly diagnosed pediatric Ph + CML patients in chronic phase (CP)

• Resistant/intolerant (R/I): chronic phase or advanced (accelerated (AP) or blast phase (BP) pediatric Ph+ CML patients with resistance or intolerance to at least 1 prior TKI ;

Related Conditions & MeSH terms

• Accelerated Phase Chronic Myelogenous Leukemia
• Blast Crisis
• Blastic Phase Chronic Myelogenous Leukemia
• Chronic Phase Chronic Myelogenous Leukemia
• Leukemia
• Leukemia, Myelogenous, Chronic, BCR-ABL Positive
• Leukemia, Myeloid
• Leukemia, Myeloid, Chronic-Phase
• Philadelphia Chromosome
• Philadelphia Chromosome Positive CML

• NCT number: NCT04258943
• Study type: Interventional
• Source: Children's Oncology Group
• Status: Active, not recruiting
• Phase: Phase 1/Phase 2
• Start date: April 6, 2020
• Completion date: July 2028