PARIS--(BUSINESS WIRE)--Regulatory News: Ipsen (Paris:IPN) (Euronext : IPN), an innovation-driven global pharmaceutical Group and Pharnext SAS, a biopharmaceutical company specializing in the development of innovative treatments, today announced they have entered into an exclusive research, development and marketing agreement regarding innovative drug candidates intended for the treatment of Charcot Marie-Tooth disease, issued from the Pleotherapy™ technology. According to this agreement, Ipsen has been granted an option to Pharnext programme and subscribes to the issuing of convertible bonds of the company.