Head-to-head evidence
Lurasidone vs Risperidone (QUAR)
Same mechanism, same race: design-graded trial evidence for both assets, with the grading rationale shown. Grades describe the quality of the evidence, never the merits of either security.
Schizophrenia
Shared mechanism: Dopamine D2 and serotonin 5-HT2A receptors (antagonist) · full Schizophrenia pipeline
Lurasidone
Marketed by Sumitomo Pharma
NCT00549718 · Phase 3 · completed
The study randomized approximately 500 participants to lurasidone 40, 80, or 120 mg or placebo and used quadruple masking of participants, clinicians, investigators, and outcome assessors. Its clinical primary endpoint, change in total PANSS score over 6 weeks, favored lurasidone overall versus placebo and was statistically significant (p<0.05).
Risperidone (QUAR)
Developed by Laboratorios Farmacéuticos Rovi, S.A.
NCT06276361 · Phase 1 · completed
A sequential, open-label pharmacokinetic study of quarterly-injection risperidone in 58 participants, with pharmacokinetic parameters as the primary measures. The design is uncontrolled for treatment effect and no results have been posted to the registry, so this is weak evidence.
Next expected readout: December 2027 · NCT07047651 (registry estimate)
The full competitive landscape for each asset (every same-race competitor with aligned evidence, sortable) is on the asset pages: Lurasidone's landscape · Risperidone (QUAR)'s landscape