MP-470 Chemotherapy Combined With Demonstrates Clinical Tumor Regression

Ruzanna Harutyunyan's picture
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SuperGen, Inc. (Nasdaq: SUPG), a pharmaceutical company dedicated to the discovery and development of novel cancer therapies, today presented data on MP-470, its lead product candidate, and four additional posters, at the 20th EORTC-NCI-AACR Symposium on "Molecular Targets and Cancer Therapeutics" in Geneva, Switzerland. MP-470, an orally bio-available multi-targeted tyrosine kinase inhibitor, showed encouraging tumor regression results in the first two arms (paclitaxel/carboplatin and carboplatin/etoposide) of its current Phase 1b clinical trial examining MP-470 combined with five standard of care (SOC) anticancer treatments.

"We are extremely pleased to report a series of important clinical and scientific advances achieved by our Company," said James S. Manuso, Ph.D., SuperGen's President and Chief Executive Officer. "In addition to MP-470's progress in the clinic, before year-end, we expect to enter SGI-1776, our PIM kinase inhibitor, into Phase 1 clinical trials. This will be our second novel drug in clinical development."

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In a poster presentation (Abstract #403) entitled, "Clinical responses of highly refractory solid tumor patients to oral MP-470, a multi-targeted tyrosine kinase inhibitor, in combination with standard of care chemotherapy regimens. Preliminary report from a multi-institutional phase 1b clinical trial," Dr. A. Tolcher, Director of Clinical Research at START (South Texas Accelerated Research Therapeutics) in San Antonio, Texas, highlighted data showing tumor regression in four patients in the two arms, indicating that MP-470 may sensitize/re-sensitize tumors to the anticancer effects of SOC regimens of DNA-damaging agents. Of note, MP-470 did not increase the types or severity of adverse events. However, a primary endpoint of the trial - determining the maximum tolerated dose of MP-470 co-administered with SOC regimens - has not been reached and dose escalation continues.

"These compelling results strengthen the rationale for combining MP-470 with DNA-damaging agents due to MP-470's purported ability to suppress the Rad51 DNA repair mechanism, which is important in various malignancies," said Dr. Gregory Berk, SuperGen's Chief Medical Officer. "We look forward to presenting updated results on MP-470 in combination with these platinum doublets, as well as the other three standard of care arms of the trial in the future."

Earlier this year, U.S. Food and Drug Administration granted orphan drug designation for MP-470 in the treatment of glioblastoma multiforme (GBM) after non-clinical studies showed more than two-fold effect of increased cell death when used synergistically with ionizing radiation. Orphan drug designation for GBM, an often fatal form of brain cancer, can entitle SuperGen to seven years of market exclusivity. SuperGen's lead product candidate has also shown promise in preclinical testing across a wide spectrum of cancers, including non-small cell lung cancer.

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