In the overall population ( n = @ ) , the objective response rate ( ORR ) was @ % ( all PR ; @ % CI : @-@ @ ) , with a disease control rate ( DCR ) of @ % ( @ % CI : @-@ @ ) , a median time to progression ( TTP ) of @ months ( n = @ ; @ % CI : @-@ @ ) and a median overall survival ( OS ) of @ months ( @ % CI : @-@ @ ) .