Intarcia Therapeutics, Inc.

Pauline C Zamora

Michael A DesJardin

Stan Lam

Scott D Lautenbach

Catherine Manya Rohloff

Guohua Chen

Andrew S Luk

Rupal A Ayer

Paul R Houston

Pedro E De La Serna

Michael A Desjardin

Thomas R Alessi

Kui Liu

James E Matsuura

Scott C Lautenbach

Paula Dennis

Latha Narayanan

Scott D Lautenback

An osmotic delivery system is disclosed for delivering an active agent formulation to a fluid environment. The osmotic delivery system typically comprises a reservoir having a lumen that contains the active agent formulation and an osmotic agent formulation and a piston assembly positioned in the lumen to isolate the active agent formulation from the osmotic agent formulation. The piston assembly typically comprises a body constructed and arranged for positioning in the lumen. The body is typically made of a polymeric material that is, for example, resistant to leaching in an organic solvent. In one embodiment, the body is a columnar body having a rim at a distal end thereof for engaging and sealing against a wall of the reservoir and the piston assembly further comprises a spring retained at the distal end of the columnar body for biasing the rim of the columnar body against the wall of the reservoir.

Osmotic delivery systems and piston assemblies for use therein

An osmotic delivery system flow modulator includes an outer shell constructed and arranged for positioning in an opening, an inner core inserted in the outer shell, and a fluid channel having a spiral shape defined between the outer shell and the inner core. The fluid channel is adapted for delivery of an active agent formulation from the reservoir of the osmotic delivery system.

Two-piece, internal-channel osmotic delivery system flow modulator

A nonaqueous, single-phase vehicle that is capable of suspending an active agent. The nonaqueous, single-phase vehicle includes at least one solvent and at least one polymer and is formulated to exhibit phase separation upon contact with an aqueous environment. The at least one solvent may be selected from the group consisting of benzyl benzoate, decanol, ethyl hexyl lactate, and mixtures thereof and the at least one polymer may be selected from the group consisting of a polyester, pyrrolidone, ester of an unsaturated alcohol, ether of an unsaturated alcohol, polyoxyethylenepolyoxypropylene block copolymer, and mixtures thereof. In one embodiment, the at least one solvent is benzyl benzoate and the at least one polymer is polyvinylpyrrolidone. A stable, nonaqueous suspension formulation that includes the nonaqueous, single-phase vehicle and an active agent, and a method of forming the same, are also disclosed.

Solvent/polymer solutions as suspension vehicles

Osmotic drug delivery devices containing suspension formulations comprising particles having active agents and nonaqueous single-phase vehicles

Growing community of inventors

Sausalito, CA, United States of America

Pauline C Zamora