Lts Lohmann Therapie-Systeme Ag

Lts Lohmann Therapie-Systeme Gmbh

Ucb Biopharma Sprl

Johannes Josef Leonhard

Marco Emgenbroich

Hans-Michael Wolff

Walter Mueller

Aurélia Lappert

Kristina Kassner

Walter Müller

Aurelia Lappert

Michael Horstmann

Walter Muller

Willi Cawello

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

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

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.

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 invention generally relates to a transdermal therapeutic system which comprises a backing layer, an adhesive layer, a polymer layer and a removable protective layer. The adhesive layer is an organosiloxane layer that is anchored to the backing layer by siliconization.

Transdermal therapeutic system comprising an adhesive layer method for siliconizing the back layer of the system and use of said back layer

The invention relates to a method for preventing the crystallization of a pharmaceutical in a polymer film, wherein the solvent-containing coating compound, which comprises a matrix-forming polymer or polymer mixture and at least one pharmaceutical and is spread to produce the polymer film, is temporarily dried at temperatures that is at least 10&#xb0; C. above the melting temperature of the pharmaceutical contained in the coating compound. The maximum temperature is thus higher than that which is required for mere drying and obviates the need for an additional, time-consuming and expensive work step.

Method for preventing the crystallization of pharmaceuticals in a polymer film

The invention relates to a transdermal therapeutic system which comprises a backing layer, an adhesive layer, a polymer layer and a removable protective layer. The adhesive layer is an organosiloxane layer and is anchored in the backing layer by siliconization.

Growing community of inventors

Bendorf, Germany

Johannes Josef Leonhard