Common use of Back-Up Compounds Clause in Contracts

Back-Up Compounds. If, upon exercise of the Option with respect to a Dynavax Program, there are not [ * ] Back-up Compounds in such Dynavax Program that [ * ], then Dynavax shall continue, until [ * ] after GSK exercises such Option, to Develop [ * ] Back-up Compounds that [ * ] for such Dynavax Program, at Dynavax’s sole cost and responsibility. Such Back-up Compounds shall be subject to GSK’s Option and included within the applicable GSK Development Program. For clarity, efforts undertaken pursuant to this Section 5.2.1 following expiration of the Research Term shall not be deemed to extend the Research Term, but shall be subject to Dynavax’s obligation to use Commercially Reasonable Efforts.