The study showed that AEZS-108 was well tolerated by patients with gynaecological tumors. Furthermore, AEZS-108 is the first drug in a clinical study that targets the cytotoxic activity of doxorubicin specifically to LHRH-receptor expressing tumors. Finally, signs of anti-tumor activity were observed in 7 out of 13 patients treated with 160 or 267 mg/m2 of AEZS-108, including three patients with complete or partial response.
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 in the malignant tissue. This binding is followed by internalization and retention of the cytotoxic drug, doxorubicin, in the cells. Therefore, since they target specific cells, cytotoxic conjugates are postulated to be less toxic, have less side-effects and are more effective in vivo than the respective non-conjugated/non-linked cytotoxic agents in inhibiting tumor growth.
About endometrial and Ovarian Cancer
Cancer of the endometrium is the most common gynaecologic malignancy and accounts for 6% of all cancers in women. The majority of the cases occur in postmenopausal women, with the largest number of women developing their cancers during the sixth decade. Approximately 38,000 new cases and 9,000 deaths from this disease are estimated annually in Europe (Source: Annals of Oncology 15:1149-1150, 2004).
Ovarian cancer is one of the most common gynaecologic malignancies and
the fifth most frequent cause of cancer death in women, with most of the
cases occurring in women between 50 and 75 years of age. Overall, ovari
|SOURCE AETERNA ZENTARIS INC.|
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