Neurocrine Bio Stops 2 Develoment Programs
Neurocrine Biosciences says it is stopping the development of two drugs being evaluated for treating focal onset seizures and anhedonia after reporting what it called were “disappointing results” from Phase 2 studies.
The investigational selective NaV 1.6 inhibitor, NBI-921352, licensed from Xenon Pharmaceuticals, did not demonstrate a meaningful reduction in seizure frequency during a Phase 2 dose-finding study, Neurocrine Bio says. The company is reviewing the data from the focal onset seizure study study to determine if there is any potential implication for its ongoing study in SCN8A-developmental epileptic encephalopathy.
The collaborative Phase 2 TERPSIS study with Takeda Pharmaceutical Co. that was evaluating the efficacy of investigational NBI-1065846 compared to placebo in patients with anhedonia in major depressive disorder did not meet its primary endpoint, Neurocrine Bio says. As a result, no further development with NBI-1065846 is planned at this time. Despite the setback, Neurocrine says it and Takeda are maintaining their collaboration on several ongoing programs in clinical development. These include NBI-1065845 as a treatment in major depressive disorder (Phase 2), luvadaxistat for treating cognitive impairment associated with schizophrenia (Phase 2), and NBI-1070770 for treating major depressive disorder (Phase 1).