Canadian Patents Database

Patent Summary

(12) Patent:	(11) CA 2137363
(54) English Title:	USE OF ZONA PELLUCIDA GLYCOPROTEINS FOR IMMUNOCONTRACEPTION
(54) French Title:	UTILISATION DE GLYCOPROTEINES DE LA MEMBRANE PELLUCIDE A DES FINS D'IMMUNOCONTRACEPTION

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Abstracts

English Abstract

A vaccine for the immunocontraception of mammals is described. The vaccine consists of zona pellucida antigens and an
adjuvant encapsulated in a liposome delivery system. The liposome delivery system allows for the slow release of antigen resulting
in a prolonged immune response. In particular, after a single injection of the vaccine, levels of anti-zona pellucida antibodies
were detected for up to 22 months. Thus, the vaccine according to the present invention is effective after a single dose and is
therefore very useful in immunocontraceptive protocols.

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Patent Details

(51) International Patent Classification (IPC):	A61K 39/00 (2006.01) A61K 9/127 (2006.01)
(72) Inventors (Country):	BROWN, ROBERT (Canada) KIMMINS, WARWICK (Canada) MEZEI, MICHAEL (Canada) POHAJDAK, BILL (Canada)
(73) Owners (Country):	IMMUNOVACCINE TECHNOLOGIES INC. (Canada)
(71) Applicants (Country):	DALHOUSIE UNIVERSITY (Canada)
(74) Agent:	SMART & BIGGAR
(45) Issued:	1999-06-15
(86) PCT Filing Date:	1993-06-07
(87) PCT Publication Date:	1993-12-23
Examination requested:	1997-11-03
(30) Availability of licence:	N/A
(30) Language of filing:	English

Patent Cooperation Treaty (PCT):	Yes
(86) PCT Filing Number:	PCT/CA1993/000239
(87) International Publication Number:	WO1993/025231
(85) National Entry:	1994-12-05

(30) Application Priority Data:
Application No. Country Date 892,807 United States of America 1992-06-05

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View Patent Image	Download Patent Image in PDF Format	Size of Image (KB)	Number of Pages
Cover Page	Cover Page	27	1
Abstract	Abstract	45	1
Claims	Claims	35	2
Description	Description	725	19
Drawings	Drawings	N/A	N/A
Representative Drawing	Representative Drawing	N/A	N/A

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