TWi Biotechnology, Inc. and Castle Creek Pharmaceuticals have entered into a development and commercialization agreement for its lead drug candidate AC-203, which is currently in development for the treatment of epidermolysis bullosa (EB). Under the terms of the agreement, TWiB grants to CCP an exclusive license of AC-203, covering a worldwide territory with the exception of Asia but including Australia and New Zealand, to develop, register and commercialize AC-203. TWiB is eligible to receive an upfront payment and milestone payments based on achievement of predefined clinical and regulatory events and will receive double-digit royalties after product launch.

TWiB and CCP will collaborate globally for AC-203 product development in any other future indications.