Inventors:
David B. Rozema - Middleton WI, US
Darren H. Wakefield - Fitchburg WI, US
Jon A. Wolff - Madison WI, US
James E. Hagstrom - Middleton WI, US
Kirk Ekena - Fitchburg WI, US
Assignee:
Arrowhead Madison Inc. - Madison WI
International Classification:
A61K 9/32
C07D 207/444
Abstract:
We describe pH-sensitive endosomolytic polymers, delivery particles containing pH-sensitive endosomolytic polymers. The described particles are capable of delivering polynucleotides to cells from the peripheral circulation with subsequent release from endosomes. The endosomolytic polymers are inactive outside the cell but disrupt membranes upon exposure to an acidified endosomal compartment.