PARIS--(BUSINESS WIRE)--Regulatory News: AB Science SA (Paris:AB)(NYSE Euronext - FR0010557264 - AB), a pharmaceutical company specializing in the research, development and commercialization of protein kinase inhibitors (PKIs), announced today that it has obtained IND status (Investigation New Drug – authorization to administer an investigational drug to humans) from the US Food and Drug Administration (FDA) and can now commence its phase 3 study of masitinib in severe persistent asthma in the US. This study had previously received European authorization and has therefore already commenced patient recruitment from European sites earlier this year.