Pharmaceutical combination for the treatment and/or...

A - Human Necessities – 61 – K

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A61K 38/08 (2006.01) A61K 31/00 (2006.01) A61P 35/00 (2006.01)

Patent

CA 2642943

The present invention relates to a pharmaceutical combination that includes a casein kinase 2 phosphorylation inhibitor (called p15) and cytostatics used in cancer chemotherapy, which are administered simultaneously, separately or sequentially. The preferred cytostatics are platinums, taxans, vinca alkaloids, 5-fluorouracil, doxorubicin, cyclophosphamide, etoposide, mitomycin C, imatinib, iressa and velcade (bortezomib). Synergy between peptide p15 and the anticancer chemical compounds means that the effective concentration of each cytostatic in the combination is between 1 and 2 orders of magnitude less than that corresponding to cytostatics alone. Consequently, the combination described in the invention has a much lower toxicity than that reported for anticancer cytostatics, which represents a crucial advantage in their use in cancer treatment. Additionally, administered sequentially, the combination gives rise to the chemosensitization of refractory tumours to the cytostatics mentioned by means of pre-treatment with peptide p15.

La présente invention a trait à une combinaison pharmaceutique contenant un inhibiteur de la phosphorylation de la caséine kinase 2, appelé P15, et les cytostatiques utilisés dans la chimiothérapie du cancer et administrés simultanément, séparément ou séquentiellement. Les cytostatiques préférés sont les platines, les taxanes, les alkaloïdes de Vinca V, le 5-fluoro-uracyle, la doxorubicine, le cyclophosphamide, l'étoposide, la mitomycine C, l'imatinib, l'iressa et le velcade (bortezomib). La synergie entre le peptide P15 et les composés chimiques anticancérigènes fait que la concentration efficace de chaque cytostatique dans la combinaison soit entre 1 et 2 ordres de grandeur inférieure à celle correspondant aux cytostatiques seuls. La combinaison de cette invention fait, donc, preuve d'une toxicité nettement inférieure à celle des cytostatiques anticancérigènes, ce qui représente un avantage considérable pour son utilisation dans le traitement de cancer. Par ailleurs, la combinaison administrée de manière séquentielle produit la chimiosensibilisation de tumeurs réfractaires aux cytostatiques précités au moyen du prétraitement avec le peptide P15.

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