Mark Hoffman

Mark Hoffman inquired about the specific objectives for the Phase 1 ACP-271 healthy volunteer study, beyond the expected improved levels of sedation relative to VMAT2 inhibitors, given its novel mechanism and preclinical work.

Answer

Elizabeth Thompson, EVP and Head of Research and Development, highlighted that as a first-in-human study for a GPR88 agonist, ACADIA aims to understand its overall behavior in humans, PK, and potential PK/PD disconnect observed in animal models. She also emphasized assessing the adverse event profile to validate the hypothesis of its efficacy in people.

Mark Hoffman asked how ABBV-932 (D3/D2 targeting) might compare to Vraylar in bipolar depression, given its heavier D3 reliance, and if there are plans to expand into indications like addiction.

Answer

Roopal Thakkar, EVP, R&D, and Chief Scientific Officer, stated that for ABBV-932, the focus is on achieving less movement disorder while maintaining efficacy, and observing its performance in Bipolar 1 versus Bipolar 2. He confirmed that addiction could be a potential future indication, noting a broader psychiatry portfolio including a kappa opioid receptor antagonist, Bretisilocin, Emraclidine, and a more D3-leaning asset from Gedeon Richter.

Mark Moffman asked about the upcoming Phase 2 readout for ABBV-932 in bipolar depression, how it might compare to Vraylar given its D3 vs. D2 targeting, and if there are plans to expand into areas like addiction.

Answer

Roopal Thakkar, Executive Vice President, Research and Development, and Chief Scientific Officer, stated that the Phase 2 data for ABBV-932 is expected later this year. He anticipates potentially less movement disorder with ABBV-932 due to less D2 targeting, while maintaining efficacy, and will analyze its performance in Bipolar 1 versus Bipolar 2. He confirmed that addiction could be a future indication and highlighted a broader psychiatry portfolio including a kappa opioid receptor antagonist, Bretisilocin, and Emraclidine, with a more D3-leaning asset in preclinical development with Gedeon Richter.