In September 2024 FDA approved Cobenfy - the first antipsychotic with a novel mechanism of action in over 30 years. Unlike conventional antipsychotics that block D2 dopamine receptors, Cobenfy acts through muscarinic M1 and M4 receptor agonism. This matters because the side effects of traditional antipsychotics - weight gain, metabolic disturbances, movement disorders - are the main reason why about half of patients stop taking their medications. And when they stop, relapses follow. The EMERGENT trials demonstrated that Cobenfy achieves comparable efficacy (effect size 0.61) while avoiding the metabolic and extrapyramidal problems that plague existing treatments. For patients with schizophrenia, who already face a 15-20 year reduction in life expectancy largely due to cardiovascular disease, a medication that doesn't worsen their metabolic profile could be genuinely life-changing. But beyond individual health the implications extend to families exhausted by relapse cycles, to healthcare systems burdened by preventable hospitalizations, and to communities that have struggled to integrate people whose treatment makes normal functioning nearly impossible. Of course long-term data are still needed - approval came after relatively short trials. But the potential here is significant: better tolerability could mean better adherence, fewer relapses, less hospitalization, and ultimately patients who can actually participate in their own lives.
Wołosik et al. (Sat,) studied this question.