Compass Pathways is running a large late-stage trial testing psilocybin as a treatment for major depression. If the results look good, they'll submit a formal drug application to the FDA. The FDA would then have to respond — either by approving it, rejecting it, or calling an expert panel meeting to debate it. That full sequence happening by July 2027 is plausible but not certain.
Efficacy signals are strong but methodologically contested (functional unblinding, durability). A formal regulatory action — approval, CRL, or AdCom scheduling — is the plausible next milestone given Compass Pathways' Phase 3 program timeline.