Nano Precision Medical, Inc.

Wouter Erik Roorda

Kathleen E Fischer

Adam D Mendelsohn

Tomoyuki Yoshie

William G M Fischer

Au Duong

Adam Monkowski

Lyle Gordon

Christian S Eversull

Stephen A Leeflang

Ryan Olf

The disclosure pertains to the field of treatment of patients with implantable delivery devices for long-term release of therapeutic agents. In particular, the disclosure provides devices and methods for the stabilization of the therapeutic agents inside the device for the duration of the implantation. The devices control the long-term release of the therapeutic agents by using a nanoporous membrane. The stabilization is achieved by using high-molecular weight stabilizers of a size that is larger than the diameter of the pores of the membrane, thereby preventing the release of the stabilizers.

Polymeric stabilizing formulations

Embodiments of the invention include devices, compositions and methods for the controlled release of therapeutic substances, such as drugs. Control over the rate of release of the therapeutic substances from the devices is achieved by the use of nanoporous membranes in which the pore size is matched to the molecular diameter of the therapeutic substances. Some embodiments of the invention achieve zero-order release by the use of membranes with a pore diameter that is more than five times the Stokes' diameter of the therapeutic substance released.

Drug delivery device

The invention pertains to implantable medical devices for controlled delivery of therapeutic agents. Some devices according to the invention have a titanium reservoir, and a porous titanium oxide based membrane to control the rate of release of the therapeutic agent. The reservoir contains a formulation of the active agent, including a stabilizer for the active agent, wherein the stabilizer is provided in an extended release configuration.

Implantable medical devices for extended release of therapeutic agents

The invention pertains to apparatuses, means and methods to promote uptake of biocompatible fluids into a reservoir of an implantable drug delivery system though a porous membrane. Embodiments of the invention promote fluid uptake by creating a pressure differential between the reservoir of the drug delivery device and the biocompatible fluid outside the device.

Implant delivery system with hydration promotor capability

The present invention provides compositions of a therapeutic agent and a polymeric stabilizing agent for stabilizing the reservoir of an implantable drug delivery system. The present invention also includes an implantable drug delivery system incorporating the composition of the present invention, as well as methods of treating diabetes using the compositions and implantable drug delivery system of the present invention.

The invention pertains to implantable medical devices for controlled delivery of therapeutic agents. Some devices according to the invention have a titanium reservoir, and a porous titanium oxide based membrane to control the rate of release of the therapeutic agent. The reservoir contains a formulation of the active agent, and means to promote water uptake into the reservoir upon implantation. In some embodiments the means include a gas with a higher solubility in than air water.

Implantable drug delivery device

The invention pertains to apparatuses, means and methods to promote uptake of fluids into a reservoir of an implantable drug delivery system though a porous membrane. Embodiments of the invention promote fluid uptake by creating a pressure differential between the reservoir of the drug delivery device and the environment of the device after implantation, for instance a subcutaneous pocket.

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Emeryville, CA, United States of America

Wouter Erik Roorda