Government officials told PTI that the approval for conducting phase 2 and 3 clinical trials by the SII was granted by DCGI Dr V G Somani late Sunday night after a thorough evaluation based on the recommendations of the Subject Expert Committee on -19.Government officials told PTI that the approval for conducting phase 2 and 3 clinical trials by the SII was granted by DCGI Dr V G Somani late Sunday night after a thorough evaluation based on the recommendations of the Subject Expert Committee on -19.