World Superbike organisers have confirmed no replacement circuit has been found for Monza and the round will be axed from the 2016 calendar.
Monza, which returned to the World Superbike calendar after confirmation during the winter, had to be withdrawn after the organising bodies requested more time to enable changes to the circuit in order to safely accommodate the World Superbike grid.
The substitute circuit Vallelunga contracted to cover cannot be used as a replacement due to scheduling problems, while it also requires modifications to be able to host a championship round of WSBK which cannot be achieved within the given timescale.
It is believed the FIM and DWO had been in talks with Portuguese circuits Portimao and Estoril about stepping in as a late replacement but any hopes have fallen flat with organisers confirming the race calendar will trim down to 13 rounds.
As a result, the series will enjoy an extended summer break, with the US round at Laguna Seca on 8-10 July signalling the mid-season pause before resuming in Germany at the Lausitzring on the 16-18 September.