PARIS--(BUSINESS WIRE)--Regulatory News: Ipsen (Paris:IPN) today announced that the US Food and Drug Administration (FDA) issued a Complete Response Letter for its Biologics License Application (BLA) for its Botulinum toxin Type A, Dysport®. The application, submitted by the Group in late 2007, seeks approval to market Dysport® for the treatment of cervical dystonia. The Group is now actively preparing to launch the product, once approved by the FDA, and as soon as reimbursement coverage is adequate.