Patient-Reported Outcomes in Acute Myeloid Leukemia Patients with FLT3-ITD Mutation Receiving Quizartinib Vs. Standard Chemotherapy: Results from the Quantum-First Trial
Abstract
Introduction: QuANTUM-First (NCT02668653) is a multicenter, global, randomized, double-blind phase 3 clinical trial evaluating the efficacy and safety of the novel oral fms-like tyrosine kinase 3 inhibitor (FLT3i) quizartinib in combination with standard induction and consolidation chemotherapy, and as maintenance monotherapy for up to 36 cycles in patients 18-75 years old with FLT3-ITD positive acute myeloid leukemia (AML). Quizartinib demonstrated a clinically meaningful and statistically significant improvement in overall survival (OS) versus placebo. An exploratory endpoint of the trial was to assess the impact of quizartinib on patient-reported outcomes (PROs). This is the first report of the longitudinal results of the PRO measures (PROMs) collected in the QuANTUM-First trial.
Methods: Patients were randomized to receive chemotherapy + quizartinib or chemotherapy + placebo. PROMs were the European Organization for Research and Treatment of Cancer QLQ-C30 (EORTC QLQ-C30) and EuroQol EQ-5D-5L. Baseline measurement was collected on day 8 of the first induction cycle, and repeated measurements were collected on day 28 of induction cycles 1-2, day 6 and 28 of consolidation cycles 1-4, and day 1 of continuation cycles 1-34 at 3-cycle intervals. EORTC QLQ-C30 and EQ-5D-5L scores were calculated as per their respective scoring manuals and included mean (95% CI, p-value) score for each domain of the EORTC QLQ-C30 and EQ-5D-5L index score, as well as mean change from baseline…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 539 participants or records.
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