Business, News Eleven Biotherapeutics Completes Exclusive Licensing Deal for IL-6 Antagonist Antibody Technology, Including EBI-031 by Business Wire • 2016/08/16 • 0 Comments CAMBRIDGE, Mass.--(BUSINESS WIRE)--Eleven has granted Roche an exclusive, worldwide license to develop and commercialize EBI-031 and all other IL-6 antagonist antibody technology owned by Eleven.