Core Concepts
Combination treatment with olaparib and ceralasertib shows promise in pediatric tumors with DNA replication stress or repair deficiencies.
Abstract
The content discusses a phase 1 trial that combined olaparib and ceralasertib in pediatric patients with tumors. The trial aimed to match treatment regimens based on the molecular profile of tumors. Results showed some promise, with identified molecular signatures in responders. The study included 18 patients with various tumor types, showing dose-limiting adverse events but also positive clinical signs in some patients. The study aimed to understand molecular signatures predicting response to the drug combination, highlighting the complexity of pediatric cancers and the need for further research.
Combination treatment with olaparib and ceralasertib in pediatric tumors
Phase 1 trial matching treatment regimens based on molecular tumor profile
Positive clinical signs in some patients, dose-limiting adverse events
Molecular signatures predicting response to the drug combination
Complexity of pediatric cancers and need for further research
Stats
The trial included 18 pediatric and young adult patients with relapsed or treatment-refractory tumors.
Patients underwent a median of 3.5 cycles of treatment.
Five of the six worst responders had TP53 mutations.
Loss of the 11q region on chromosome 11 is common among patients.
The study is limited by its small sample size and lack of randomization.
Quotes
"It is striking ... so we need to learn what TP53 in this setting means if it's mutated, and if it could be a resistance factor." - Dr. Gatz
"That begs the question [of] whether chromosomal instability is another biomarker for pediatric cancer." - Dr. Bender