(19)

(11)

EP 1 928 525 A2

(12)

(88) Date of publication A3: 31.05.2007 (43) Date of publication: 11.06.2008 Bulletin 2008/24 (21) Application number: 06804158.1 (22) Date of filing: 26.09.2006

(51) International Patent Classification (IPC):  A61M 15/00(2006.01) B65D 77/20(2006.01) A61J 1/03(2006.01) (86) International application number: PCT/US2006/037422 (87) International publication number: WO 2007/041090 (12.04.2007 Gazette 2007/15)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 29.09.2005 US 722303 P (71) Applicant: Nektar Therapeutics San Carlos, CA 94070 (US)	(72) Inventors: CHEU, Scot San Jose, CA 95136 (US) CHAN, Leo Fremont, CA 94539 (US) (74) Representative: Baldock, Sharon Claire  BOULT WADE TENNANT Verulam Gardens 70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)