definiens: means the date upon which data base lock occurs ; provided that, to the extent [ * * ] is conductedand there is [ * * ], then with respect to [ * * ] shall be deemed to have occurred upon [ * * ] of the [ * * ] of the [ * * ] . For clarity, in the event that [ * * ] is conducted and [ * * ] with respect to the [ * * ] is required prior to entering [ * * ] due toany unexpected event ( e.g, a serious adverse event occurred ), then ( i ) the [ * * ] shall be deemed to be an [ * * ] conducted [ * * ], ( ii ) [ * * ] shall be deemed to be an [ * * ] conducted [ * * ] and ( iii ) for clarity, with respect to each such deemed [ * * ] study shall occur upon [ * * ] with respect to each such deemed [ * * ] study