AEterna Zentaris (AEZS) Announces Phase 2 Results of AEZS-108 Endometrial Cancer Treatment

November 24, 2009 7:16 AM EST

AEterna Zentaris Inc. (NASDAQ: AEZS) today announced positive efficacy data from a Phase 2 study with its targeted cytotoxic peptide conjugate, AEZS-108 (formerly AN-152), in patients with advanced or recurrent endometrial cancer. In a personalized health care approach, the study selected patients with tumors expressing luteinizing hormone-releasing hormone (LHRH) receptors, the key element in the targeting mechanism of AEZS-108. Under the coordination of Prof. Gunter Emons, MD, Chairman of the Department of Obstetrics & Gynaecology at the University of Gottingen, Germany, this open-label, multi-center and multi-national Phase 2 study AGO-GYN 5, is being conducted by the German AGO Study Group (Arbeitsgemeinschaft Gynakologische Onkologie/Gynaecological Oncology Working Group.

A preliminary evaluation has shown that the study AGO-GYN 5 met its predefined primary efficacy endpoint of 5 or more responder patients with endometrial cancer. The study is currently ongoing, and responders, as well as patients with stable disease after completion of treatment with AEZS-108, will be followed to assess the duration of progression-free survival and, ultimately, overall survival. Detailed analyses of the study results will be presented at forthcoming scientific conferences.

AEZS-108 represents a new targeting concept in oncology using a cytotoxic peptide conjugate which is a hybrid molecule composed of a synthetic peptide carrier and a well-known cytotoxic agent, doxorubicin. The design of this product allows for the specific binding and selective uptake of the cytotoxic conjugate by LHRH-receptor positive tumors. The binding of AEZS-108 to cancerous cells that express these receptors, results in its accumulation and preferential uptake in the malignant tissue.


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