Methods of therapy for non-hodgkin's lymphoma using a...

A - Human Necessities – 61 – K

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A61K 39/395 (2006.01) A61K 38/20 (2006.01) A61P 35/00 (2006.01) C07K 16/28 (2006.01)

Patent

CA 2404390

Methods for treating a mammal with lymphoma using a combination of interleukin- 2(IL-2) or variant thereof and at least one anti-CD20 antibody or fragment thereof are provided. These anti-tumor agents are administered as two separate pharmaceutical compositions, one containing IL-2 (or variant thereof), the other containing at least one anti-CD20 antibody (or fragment thereof), according to a dosing regimen. Administering of these two agents together potentiates the effectiveness of either agent alone, resulting in a positive therapeutic response that is improved with respect to that observed with either agent alone. The anti-tumor effects of these agents can be achieved using lower dosages of IL-2, thereby lessening the toxicity of prolonged IL-2 administration and the potential for tumor escape.

L'invention concerne des méthodes destinées à traiter un mammifère atteint d'un lymphome au moyen d'une combinaison d'interleukine 2 (IL-2) ou d'une variante d'IL-2 avec au moins un anticorps anti-CD20 ou un fragment de cet anticorps. Les agents antitumoraux ainsi obtenus sont administrés sous forme de deux compositions pharmaceutiques séparées, l'une contenant l'IL-2 (ou une variante d'IL-2), l'autre contenant au moins un anticorps anti-CD20 (ou un fragment de cet anticorps), selon un régime de dosage donné. L'administration simultanée de ces deux agents renforce leur efficacité par comparaison avec une administration isolée, d'où une réponse thérapeutique positive améliorée par rapport à la réponse observée avec l'un ou l'autre de ces agents administré de manière isolée. Les effets antitumoraux de ces agents peuvent être obtenus avec des doses d'IL-2 plus faibles, ce qui permet de réduire la toxicité d'une administration prolongée d'IL-2 ainsi que le potentiel de résistance de la tumeur.

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