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Tolero Pharmaceuticals Executes Exclusive License with Eutropics for Novel Companion Diagnostic Platform PraediCareDx™.

11/09/2015 | 10:51am EST

Tolero Pharmaceuticals, Inc., a late-stage pharmaceutical company developing treatments for serious hematological diseases, today announced that it has entered into an exclusive license to use Eutropics PraediCare Dx™ platform in the clinical development of alvocidib. Preliminary studies have suggested that PraediCareDx can be used to identify acute myeloid leukemia (AML) patients with a high likelihood of responding to alvocidib. Tolero is currently initiating a randomized Phase II study in previously treated AML patients using PraediCareDx to prospectively confirm our ability to identify patients likely to respond to alvocidib. Alvocidib, a CDK9 inhibitor, blocks super enhancer-regulated transcription of MCL-1 and places AML cells in a heightened state of sensitivity to apoptosis-inducing agents. PraediCareDx can measure the dependence of malignant cells on MCL-1 in a unique way that identifies what is termed the “NOXA-primed state.”

In addition to the Phase II biomarker study of alvocidib, Tolero also plans to initiate a randomized Phase III study in previously treated AML patients comparing alvocidib, given in timed-sequential-therapy with cytarabine and mitoxantrone (FLAM), to cytarabine and mitoxantrone alone (AM). Based on agreement with the FDA during an End of Phase 2 Meeting, the primary endpoint of this registration trial will be the rate of complete remission.

“If the results of the Phase II biomarker study are positive, we may be able to greatly accelerate the development of alvocidib and potentially reduce the size and cost of the registration program” said David J. Bearss, Ph.D., CEO of Tolero. “Furthermore, the link of PraediCareDx to the function of MCL-1 further substantiates the clinical mechanism of action of alvocidib through CDK9-dependent suppression of MCL-1 expression, a major signaling pathway in the biology of AML."

“We believe that the correlation between the PraediCare Dx readout and clinical response to treatment could greatly benefit AML patients, both by speeding alvocidib development and by directing its most efficacious use post approval.” said Michael Cardone, Ph.D., CEO of Eutropics. “This agreement will lead to a win for all involved.”

About Alvocidib
Alvocidib is a potent small molecule inhibitor of cyclin-dependent kinase 9 (CDK9) in development as a combination therapy for frontline and relapsed/refractory AML. CDK9 is a protein critical to the regulation of gene expression including the MCL-1 gene and other important genes involved in cancer. Given the key role CDK9 de-regulation plays in expression of cancer-associated genes related to cell division and proliferation, CDK9 is an attractive target for the treatment of various cancers.

About Tolero
Tolero Pharmaceuticals is a clinical stage biopharmaceutical company developing treatments to improve and extend the lives of patients with serious oncological and hematological diseases. Our diverse pipeline targets important biological drivers of blood disorders to treat leukemias and anemia as well as important targets of drug resistance and transcriptional control.

About Eutropics
Eutropics is an innovative clinical diagnostics company developing a novel approach for guiding treatment, enabling the delivery of personalized medicines to patients suffering from cancer. Eutropics’ PraediCare Dx™ platform technology delivers medically useful in vitro diagnostic assays.

ę Business Wire 2015
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