Phase 1/2 Study Investigating CC-90011, a Potent, Selective, and Reversible Oral Inhibitor of Lysine-Specific Demethylase 1 (LSD1), Plus Concurrent Venetoclax (VEN) and Azacitidine (AZA) in Patients with Acute Myeloid Leukemia (AML)
Abstract
Background
AML may be initiated by cytogenetic alterations or mutations in genes encoding epigenetic regulators. Epigenetic dysregulation influences the transformation of hematopoietic stem cells or their downstream progenitors into self-renewing leukemic stem cells (LSCs), which contribute to AML pathogenesis and tumor growth. Residual chemoresistant LSCs are implicated in relapsed and/or refractory (R/R) AML, a life-threatening disease with limited treatment options.
The epigenetic eraser LSD1 demethylates histone lysine residues to alter gene expression, is essential for hematopoiesis, and is often overexpressed in LSCs in AML. CC-90011 is a potent, selective, and reversible oral inhibitor of LSD1 that has shown antitumor effects in solid-tumor and AML cell-line models. CC-90011 monotherapy had a favorable safety profile and showed evidence of antitumor activity in patients with advanced solid tumors and R/R non-Hodgkin lymphoma (Hollebecque et al. ESMO TAT 2021. Abstract 7O). CC-90011 combined with etoposide plus carboplatin or cisplatin was well tolerated in patients with extensive-stage small cell lung cancer (Ponce at al. ELCC 2021. Abstract 50P).
VEN plus AZA has emerged as standard therapy for elderly patients with AML. Adding CC-90011 to VEN and AZA may inhibit the aberrant LSD1 activity associated with AML pathogenesis and LSC propagation, increase sensitization to VEN and AZA, and produce deeper and more durable responses than VEN plus AZA alone.
Study Design and…
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