Addex Therapeutics announced the signing of a licensing and collaboration agreement with Indivior PLC for global development and commercialization of ADX71441 for the treatment of addiction. ADX71441 is a potent, selective positive allosteric modulator (PAM) that potentiates GABA responses at the GABAB receptor. In addition, Indivior will fund a research program at Addex to discover additional GABAB PAM compounds. Under the terms of the agreement, Addex will receive $5 million upfront, $4 million of committed research funding over the next two years, $330 million of potential development, regulatory and commercialization milestones and tiered royalties up to double-digit. Addex retains the right to select compounds from the research collaboration for certain indications outside addiction, including Charcot-Marie-Tooth type 1a neuropathy (CMT1A).