Aileron Therapeutics Presents New Data on ALRN-6924 in Oral Presentations at 2017 American Society of Hematology Meeting
Preclinical data show dual inhibition of MDM2 and MDMX restores p53 function
Data demonstrate strong anti-cancer effects in models of T-cell lymphomas and acute myeloid leukemia
“We are encouraged by these positive preclinical data from our collaborators, which demonstrate that dual inhibition by ALRN-6924 induces strong p53 activity that leads to anti-cancer effects,” said Dr.
TCL Study Highlights (Abstract #571)
In an in vitro and in vivo preclinical study, MDMX and MDM2 were evaluated as potential targets for treating wild type p53 T-cell lymphomas by using ALRN-6924 to inhibit their expression. The data showed that ALRN-6924 induced apoptotic cell death in TCL lines, and significantly reduced tumor burden compared to the vehicle in animal models. Furthermore, ALRN-6924 had a favorable safety profile and demonstrated superior efficacy across multiple TCL subtypes compared to the current standard-of-care.
AML Study Highlights (Abstract #795)
The preclinical data presented showed that dual inhibition of MDMX and MDM2 by ALRN-6924 led to activation of p53-dependent pathways in AML cells. The disruption of MDMX/p53 and MDM2/p53 interactions resulted in strong anti-leukemic effects, and induced cell cycle arrest and apoptosis in cell lines and wild type p53 AML patients’ cells. The compound exhibited strong on-target activity in AML cell lines and primary cells in vitro, as well as in a patient who received ALRN-6924. The data further demonstrated that ALRN-6924 showed superiority over MDM2-only inhibition, and led to improved survival in in vivo AML models.
“These results support our understanding that in most patients with acute myeloid leukemia, a devastating disease with limited therapeutic options, p53 is circumvented by activation of its natural suppressor proteins, MDMX and MDM2,” said
ALRN-6924 is a first-in-class product candidate designed to reactivate wild type p53 tumor suppression by disrupting the interactions between the two primary p53 suppressor proteins, MDMX and MDM2. Aileron believes ALRN-6924 is the first and only product candidate in clinical development that can equipotently bind to and disrupt the interaction of MDMX and MDM2 with p53. Based on preclinical data and preliminary evidence of safety and anti-tumor activity in its ongoing clinical trials, there may be a significant opportunity to develop ALRN-6924 as a monotherapy or combination therapy for a wide variety of solid and liquid tumors. ALRN-6924 is currently being evaluated in multiple clinical trials for the treatment of acute myeloid leukemia (AML), advanced myelodysplastic syndrome (MDS) and peripheral T-cell lymphoma (PTCL). For information about its clinical trials, please visit www.clinicaltrials.gov.
Aileron is a clinical-stage biopharmaceutical company advancing stapled peptides, a novel class of therapeutics for cancers and other diseases. Stapled peptides are chemically stabilized alpha-helical peptides that are modified to improve their stability and cell penetrability while maintaining high affinity for large protein surfaces. Our goal is to use our proprietary stapled peptide drug platform to create first-in-class therapeutics, like ALRN-6924, that may be able to address historically undruggable targets and complex mechanisms that underlie many diseases with high unmet medical need. Our platform enables us to chemically stabilize and improve the performance and activity of a broad range of alpha-helical peptides that we believe can potentially activate and inhibit key cellular functions that are otherwise difficult to target with existing drug technologies, including small molecules and monoclonal antibodies. For more information, visit www.aileronrx.com.
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Source: Aileron Therapeutics
i Dr. Weinstock’s research was financially supported by Aileron under a sponsored research agreement.
ii Dr. Steidl’s research was financially supported by Aileron under a sponsored research agreement.