definiens: means, with respect to a decision or dispute as tothe following matters, Lexicon or its JSC representatives have a right of consent : ( i ) if Lexiconexercises the ( Co-)Promotion Right, the adoption of or any amendment to the T1DMCommercialization Plan, ( ii ) any amendment of the Development Plan that would [ * * ], ( iii ) anamendment to the Development Plan that would [ * * ], ( iv ) any material amendment to theDevelopment Plan other than to the extent such amendment is [ * * ], ( v ) any amendment of theDevelopment Plan with respect to the Development of Licensed Products for T1DM ( includingany modification of the activities to be performed by Lexicon ), including any agreement with aRegulatory Authority to undertake Required Phase 4 Studies in connection with obtaining aRegulatory Approval of a Licensed Product for T1DM, or ( vi ) any matter that expressly requiresconsent of Lexicon hereunder