If you've completely synced the iPad to CC, then launch Premiere Pro and choose Open Premiere Rush Project . . . and click on the thumbnail for your project, depending on the amount of source footage and other materials involved - it may take a long time to open in Premiere as all the source material now located in the cloud must be downloaded from the cloud to local storage on your computer.
Lots of variables here - internet connection speed, amount of material, etc.
The second time you open the project, it should load much faster as all the material has been transferred to local storage.