LONDON--(BUSINESS WIRE)--Vertex Pharmaceuticals Incorporated (Nasdaq: VRTX) announced today that the European Commission has granted conditional marketing authorization to CASGEVY™ (exagamglogene autotemcel [exa-cel]), a CRISPR/Cas9 gene-edited therapy. CASGEVY is approved for the treatment of patients who are 12 years of age and older with severe sickle cell disease (SCD) characterized by recurrent vaso-occlusive crises (VOCs) or transfusion-dependent beta thalassemia (TDT), for whom hematopoietic stem cel ...