Lts Lohmann Therapie-systeme Ag

Ddp Specialty Electronic Materials US 9, LLC

Dow Silicones Corporation

Ucb Biopharma Sprl

Sellergren, Börje

Marco Emgenbroich

Hans-Michael Wolff

Christoph Schmitz

Walter Müller

Patrick Mohr

Johannes Josef Leonhard

Michael Linn

Xavier Thomas

Gabriel Wauer

Heike Kluth

Elke Klein

Linda Sue Nartker

Markus Müller

Eva-Marie Prinz

Kristina Kassner

Aurélia Lappert

Nico Reum

Peter Klaffenbach

Regine Kaufmann

Marius Bauer

Willi Cawello

Hans-Werner Wolf

Jessica Verstraelen

Börje Sellergren

Peter Bohnenkämper

Birgit Braun

Stefan Lorscheidt

Andrew Hall

The present invention relates to aransdermal therapeutic system for the transdermal administration of a systemically active agent having a self-adhesive layer structure. The transdermal therapeutic system includes (A) a backing layer, and (B) a dried biphasic layer. The dried biphasic layer has (a) an outer phase having a composition comprising 75% to 100% of a polymer or polymer mixture, and (b) an inner phase having a composition that includes at least one active agent. The inner phase forms dispersed deposits in the outer phase, with the dried biphasic layer including (c) from 0.1% to 3.5% of an interface mediator other than silicone oil, with the interface mediator having with a kinematic viscosity of from 10 cSt to 100 000 cSt at 25° C.

Transdermal delivery system including an interface mediator

The present invention relates to a transdermal therapeutic system for the transdermal administration of guanfacine comprising a guanfacine-containing layer structure, said guanfacine-containing layer structure comprising: A) a backing layer; and B) a guanfacine-containing layer; wherein the transdermal therapeutic system comprises at least one polymer and at least additive.

Transdermal therapeutic system for the transdermal administration of guanfacine comprising at least one additive

The present invention relates to a transdermal therapeutic system for the transdermal administration of guanfacine comprising a guanfacine-containing layer structure, said guanfacine-containing layer structure comprising: A) a backing layer; and B) a guanfacine-containing layer; wherein the transdermal therapeutic system comprises at least one silicone polymer.

Transdermal therapeutic system for the transdermal administration of guanfacine comprising a silicone polymer

Use of an additive in a transdermal therapeutic system with an active agent-containing layer in the form of a biphasic layer having a hydrophilic inner phase and a hydrophobic outer phase, in which the inner phase comprises the additive and an active agent dissolved therein, the additive has a higher affinity to water than to the active agent, for the control of the permeation rate of the active agent in a manner which is independent from its concentration in the biphasic layer, with the maintenance of the permeation rate proportional to the amount of active agent in the biphasic layer.

Method for adjusting the release of active agent in a transdermal delivery system

The present invention relates to a transdermal therapeutic system for the transdermal administration of guanfacine comprising a guanfacine-containing layer structure, said guanfacine-containing layer structure comprising: A) a backing layer; and B) a guanfacine-containing layer; wherein the transdermal therapeutic system comprises at least one silicone acrylic hybrid polymer.

Transdermal therapeutic system for the transdermal administration of guanfacine comprising a silicone acrylic hybrid polymer

Transdermal therapeutic system for the transdermal administration of a systemically active agent comprising a self-adhesive layer structure, comprising A) a backing layer, and B) a dried biphasic layer, the dried biphasic layer having a) an outer phase having a composition comprising 75% to 100% of a polymer or polymer mixture, and b) an inner phase having a composition comprising at least one active agent, wherein the inner phase forms dispersed deposits in the outer phase, and c) 0.1% to 3.5% of an interface mediator with a kinematic viscosity of from 10 cSt to 100 000 cSt at 25&#xb0; C., and C) optionally an additional skin contact layer.

A transdermal therapeutic system containing rotigotine base in a self-adhesive layer structure. The system includes a backing layer, and a rotigotine-containing biphasic layer. The biphasic layer has an outer phase having a composition including 75% to 100% of a polymer or a polymer mixture, and an inner phase that forms dispersed deposits in the outer phase. The inner phase includes rotigotine base and a polymer mixture of at least two hydrophilic polymers. The hydrophilic polymers are selected from the group of polyvinylpyrrolidones having a K-Value of at least 80, polyvinylpyrrolidones having a K-Value of less than 80, copolymers of vinyl caprolactam, vinylacetate and ethylene glycol, copolymers of vinylpyrrolidone and vinylacetate, copolymers of ethylene and vinylacetate, polyethylene glycols, polypropylene glycols, acrylic polymers, and modified celluloses. The polymer mixture in the inner phase is present in an amount sufficient so that it forms a solid solution with the rotigotine base.

Transdermal delivery system containing rotigotine

The present invention relates to the use of an additive in a transdermal therapeutic system with an active agent-containing layer in the form of a biphasic layer having a hydrophilic inner phase and a hydrophobic outer phase, in which the inner phase includes the additive and an active agent dissolved therein. The additive has a higher affinity to water than to the active agent and controls the permeation rate of the active agent in a manner which is independent from its concentration in the biphasic layer, with the maintenance of the permeation rate being proportional to the amount of active agent in the biphasic layer.

The present invention relates to a transdermal therapeutic system, comprising (a) a backing layer, (b) a solvent-based self-adhesive matrix layer containing rotigotine as active ingredient, and (c) a release liner, wherein the self-adhesive matrix layer has a coating weight of about 75-400 g/mand comprises a reservoir layer containing about 9-25 wt.-% rotigotine based on the weight of the reservoir layer, a kit comprising two transdermal therapeutic systems of the present invention as well as a method for the preparation of the transdermal therapeutic system of the present invention. In addition, the present invention relates to a transdermal therapeutic system comprising rotigotine as active ingredient for use in the treatment of patients suffering from Parkinson's disease, Parkinson's plus syndrome, depression, fibromyalgia and the restless-legs syndrome and for use in the treatment or prevention of dopaminergic neuron loss or cognitive disorders by transdermal administration of rotigotine once or twice weekly, wherein the transdermal therapeutic system comprises a backing layer, a solvent-based rotigotine containing self-adhesive matrix layer as well as a release liner and is adapted to allow for the transdermal administration of therapeutically effective amounts of rotigotine for at least 3 days.

Multi-day patch for the transdermal administration of rotigotine

The present invention relates to a transdermal therapeutic system (TTS) for the transdermal administration of rivastigmine comprising a rivastigmine-containing layer structure, said rivastigmine-containing layer structure comprising: A) a backing layer; and B) a rivastigmine-containing layer.

Transdermal therapeutic system for the transdermal administration of rivastigmine

A method of inverting the phase arrangement of the silicone phase and the acrylic phase in a silicone acrylic hybrid composition, the silicone acrylic hybrid composition comprising: a) a silicone acrylic hybrid pressure sensitive adhesive, and b) a solvent, wherein the phase arrangement of the silicone phase and the acrylic phase in the initial silicone acrylic hybrid composition forming a continuous external phase and a discontinuous internal phase is determined by the solvent, comprising the step of adding an activator to the silicone acrylic hybrid composition, wherein the activator a) is liquid at 20&#xb0; C. and 1013 mbar, b) has a boiling point which is higher than the boiling point of the solvent and/or has a vapor pressure at 20&#xb0; C. which is lower than the vapor pressure of the solvent contained in the silicone acrylic hybrid composition, and c) provides better dissolution properties for the inner phase of the initial silicone acrylic hybrid composition than the solvent contained in the silicone acrylic hybrid composition.

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Rheinbach, Germany

Marco Emgenbroich