Sanofi's high hopes for rilzabrutinib, its pipeline-in-a-product picked up through the acquisition of Principia Biopharma last year, have suffered a setback with a failure in a late-stage trial for a rare autoimmune skin disease.
The Phase III PEGASUS trial evaluated 131 newly diagnosed or relapsing moderate-to-severe pemphigus vulgaris or pemphigus foliaceus patients with rilzabrutinib,...






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