Transdermal Delivery Systems with Pharmacokinetics Bioequivalent to Oral Delivery
Summary
The European Patent Office published patent application EP3490559A1 for Corium, LLC covering transdermal drug delivery systems designed to achieve pharmacokinetics bioequivalent to oral delivery. The invention targets A61P 25/28 (nervous system disorders) and uses A61K 31/445, 31/13, 31/137, and 9/70 formulations. The patent is designated for all 31 EPO member states.
What changed
Corium, LLC received publication of European Patent Application EP3490559A1 for transdermal delivery systems engineered to match the pharmacokinetic profile of oral administration. The application claims formulations containing A61K 31/445, 31/13, and 31/137 compounds in A61K 9/70 transdermal matrix systems, targeting A61P 25/28 neurological applications. Inventors include Parminder Singh, Eun Soo Lee, and Amit K. Jain.
Pharmaceutical companies and drug manufacturers should note this patent publication for freedom-to-operate considerations when developing transdermal delivery formulations for neurological therapies. No compliance action is required; this is an informational publication of intellectual property rights. Patent protection extends to designated EPO states including DE, FR, GB, IT, ES, and 26 other member jurisdictions.
Source document (simplified)
TRANSDERMAL DELIVERY SYSTEMS WITH PHARMACOKINETICS BIOEQUIVALENT TO ORAL DELIVERY
Publication EP3490559A1 Kind: A1 Mar 25, 2026
Applicants
Corium, LLC
Inventors
SINGH, Parminder, LEE, Eun Soo, JAIN, Amit K.
IPC Classifications
A61K 31/445 20060101AFI20180202BHEP A61K 31/13 20060101ALI20180202BHEP A61K 31/137 20060101ALI20180202BHEP A61K 9/70 20060101ALI20180202BHEP A61P 25/28 20060101ALI20180202BHEP
Designated States
AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
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