Shares of ASLAN Pharmaceuticals rose more than 83 percent after the company announced positive preliminary data in an atopic dermatitis study.

The European Commission approved Dupixent (dupilumab) for use in adults and adolescents 12 years and older as an add-on maintenance treatment for severe asthma with type 2 inflammation characterized by raised blood eosinophils and/or raised fractional exhaled nitric oxide, who are inadequately controlled with high dose inhaled corticosteroid plus another medicinal product for maintenance treatment.