AbbVie's shares experienced a significant drop after its schizophrenia drug, emraclidine, failed to achieve statistically significant improvement in two Phase 2 trials. This outcome casts a shadow over AbbVie's recent $8.7 billion acquisition of Cerevel Therapeutics, a deal intended to bolster its pipeline amidst declining sales of Humira.
The trials assessed emraclidine's efficacy using a scale to measure the severity of schizophrenia symptoms. However, results indicated no statistically significant difference between the drug and a placebo. Furthermore, higher doses of emraclidine did not demonstrate increased effectiveness, eliminating a potential path forward for the treatment.
Analyst Perspectives
Mizuho analyst Jared Holz described the trial results as "a real dagger" for AbbVie, highlighting the risks associated with acquiring companies before pivotal data is available. Piper Sandler analyst Christopher Raymond suggested that this $8.7 billion "mistake" is likely to negatively impact investor sentiment for an extended period.
Competitive Landscape
This setback for AbbVie is viewed as a potential advantage for Bristol Myers Squibb, which recently received FDA approval for a novel schizophrenia drug. Bristol's shares surged following the announcement of AbbVie's trial failure. Stifel analyst Paul Matteis noted that AbbVie's failure would significantly bolster Bristol's lead in the evolving schizophrenia treatment market.
Novel Mechanism of Action
Traditional schizophrenia treatments primarily target dopamine receptors, but these drugs are ineffective for many patients and often cause unpleasant side effects, leading to poor adherence. Emraclidine, like Bristol's drug, targets muscarinic receptors, offering a new mechanism of action that modulates brain circuits disrupted in schizophrenia. This approach holds promise for treating symptoms with fewer side effects.
Cerevel's Pipeline
While emraclidine was a key focus for AbbVie investors, Cerevel's pipeline also includes drugs targeting neurological and psychiatric conditions such as Parkinson's disease and mood disorders. AbbVie will now need to reassess its strategy and the potential of Cerevel's broader portfolio.