Methods and compositions for controlling ectoparasites

A - Human Necessities – 61 – K

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A61K 38/55 (2006.01) A61K 31/4015 (2006.01) A61K 31/444 (2006.01) A61K 38/04 (2006.01) A61P 33/14 (2006.01)

Patent

CA 2532789

A method for inhibiting hatching of an ectoparasite egg, the method comprising exposing the ectoparasite egg to at least one metal chelating agent and/or metalloprotease inhibitor, wherein the metal chelating agent is a compound comprising at least two heteroatoms able to simultaneously coordinate with a metal ion, at least one of the two heteroatoms being selected from nitrogen, sulfur, oxygen and phosphorus, wherein the compound comprises at least one carbocyclic ring substituted with at least one heteroatom and/or with a substituent containing at least one heteroatom, or the compound comprises at least one heterocyclic ring containing at least one heteroatom, wherein said heterocyclic ring is optionally substituted with at least one heteroatom and/or with a substituent containing at least one heteroatom is provided. Methods of treating ectoparasite infestations and compositions for use in such methods are also provided.

L'invention concerne une méthode permettant d'inhiber l'éclosion d'oeuf d'ectoparasite. Cette méthode consiste à exposer l'oeuf d'ectoparasite à au moins un chélateur métallique et/ou à un inhibiteur de métalloprotéase. Le chélateur métallique est un composé qui comprend au moins deux hétéroatomes pouvant simultanément opérer une coordination avec un ion métallique, au moins un des deux hétéroatomes étant sélectionné parmi azote, soufre, oxygène et phosphore. Ce composé comprend au moins un anneau hétérocyclique substitué par au moins un hétéroatome et/ou un substituant contenant au moins un hétéroatome, ou comprend au moins un anneau hétérocyclique contenant au moins un hétéroatome, ledit anneau hétérocyclique étant éventuellement substitué par au moins un hétéroatome et/ou un substituant contenant au moins un hétéroatome. L'invention concerne également des méthodes de traitement d'infestations ectoparasitaires ainsi que des compositions à utiliser dans lesdites méthodes.

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