You might try what I like to call "the EA dance" to get the game to work.
First you launch the game in administrator mode.
Then press cntl+alt+del and open the task manager. Then click the "processes" tab. Scroll down and find 'sporeapp.exe' and end that task.
Next open EADM and relaunch spore in admin mode.
If it doesnt load, repeat the end task process of sporeapp.exe and end task on eadm.exe as well.
Now relaunch spore in admin mode and repeat the process until it launches.
The way I tell if its worked or not is if the bit number stalls or proceeds to its normal amount.
This is what I have to do to get any EA game with securom to load. RA3, Spore, Sims2 all require this "dance" to get them to load. Usually takes 5-15 minutes to get any of them to load.
Good luck.