Addex collaboration with Indivior enters next stage

Addex Therapeutics SA, a clinical-stage biopharmaceutical company focused on developing a portfolio of novel small molecule allosteric modulators for neurological disorders, and Indivior PLC announced the selection of clinical candidates from their GABAB positive allosteric modulator (PAM) research collaboration. Indivior has selected a compound for future development in substance use disorder and will now undertake all future development of their selected compound.

Under the terms of the agreement, Addex is eligible for payment of up to USD 330 million on successful achievement of prespecified regulatory, clinical and commercial milestones as well as tiered royalties on the level of net sales from high single digits up to low double-digit. Under the terms of the agreement, Addex has also exercised its right to select a compound to advance its own independent GABAB PAM program for the treatment of chronic cough.

"Indivior’s collaboration with Addex has been instrumental in identifying a possible candidate for the treatment of substance use disorders,” said Christian Heidbreder, Chief Scientific Officer at Indivior. “While the challenges of this field are complex, targeting the GABAB receptor with positive allosteric modulators offers a potential new avenue for developing much needed therapies.”

“The selection of GABAB PAM clinical candidates is the culmination of more than five years of research at Addex in close collaboration with the team at Indivior. During this time, we were able to pinpoint specific candidates from thousands of compounds using the power of our industrial-scale allosteric modulator discovery platform. We look forward to the next steps in the development of the substance use disorder program under the control of Indivior,” said Tim Dyer, CEO of Addex. “On the Addex side, we are now focused on advancing our selected clinical candidate for chronic cough into IND enabling studies.”

(Press release / SK)