CA3010183C — Systems and methods for long term transdermal administration

USPTO Abstract

The systems and devices described herein are designed for prolonged or long term transdermal administration of an active agent. The compositions may be used in devices, patches or systems suitable for transdermal delivery of the active agent. The devices and systems have a composite layer comprising a plurality of segments that are at least partially separated, which makes them especially useful for long term delivery of the active agent from the device. For the long term delivery, the system must remain adhered or substantially adhered to the administration site as delivery of the active agent from the transdermal device requires contact between the agent containing layer and the administration site (directly or indirectly). Most transdermal patches cannot or do not remain sufficiently adhered to the skin for an extended period of more than a couple of days.