The presentation of full Phase II data for Pfizer Inc.’s failed serotonin 5-HT6 antagonist PF-05212377 at the Alzheimer’s Association International Conference is disappointing, but still leaves room for others in the class to succeed, like Lundbeck Inc.’s idalopirdine and Axovant Sciences Ltd.’s RVT-101, now dubbed intepirdine.
Antagonists against 5-HT6 are part of an emerging oral class of drugs that have shown modest efficacy in mid-stage studies...






