//It is loaded by default by /Library/LaunchAgents/com.adobe.AdobeCreativeCloud.plist.
//If you run
launchctl unload -w /Library/LaunchAgents/com.adobe.AdobeCreativeCloud.plist
that will disable it for your user.
//To turn it back on
launchctl load -w /Library/LaunchAgents/com.adobe.AdobeCreativeCloud.plist