Development Costs Paid by Biogen Sample Clauses

Development Costs Paid by Biogen. On a Collaboration Program-by-Collaboration Program basis, (i) prior to Option exercise with respect to the applicable Collaboration Program, Biogen will be responsible for all its Research and Development activities for each Development Candidate under the applicable Collaboration Program in accordance with the preclinical toxicology strategy for such Collaboration Program, and all its costs and expenses associated therewith, and (ii) after Option exercise with respect to the applicable Collaboration Program, Biogen will be solely responsible for the costs and expenses related to the Development, Manufacture and Commercialization of Products, including any work performed by Ionis at Biogen’s written request, and all supply chain planning and decision making.