definiens: shall mean a Collaboration Compound that has been confirmed by the JSC to havesatisfied the [ ... * * * ... ] . For purposes of clarity, ( a ) a Collaboration Compound shall be deemed a Development Candidateif, at any time during the Research Collaboration Term for a Research Program, [COMPANY] or the JSC by mutual agreementrequests that Regulus begin [ ... * * * ... ] of such Collaboration Compound under such Research Program prior toconfirmation by the JSC that such Collaboration Compound has met the [ ... * * * ... ] and ( b ) if Regulus has [ ... * * * ... ] aCollaboration Compound as a Development Candidate on or before [ ... * * * ... ] with respect to such Research Program, inwhich case, upon such expiration, Regulus shall provide a [ ... * * * ... ] with respect to the Leading Compound under suchResearch Program