Pass varible between LTM L7 Policy and APM (Session/Per-Request)

Hello,

 

Im tring to figure out if its possible to pass some Varible/Information between LTM and APM module on BIG-IP, i was tring to do that via session varible, but i cant set an session varible on LTM policy because a session does not exist yet. So i just want to know, its possible to pass some information or varible created on the LTM Policy to APM ? Maybe an way to create a varible on a iRule LTM and use that value on the APM Per-Request.