Our site reviews protocols with stakeholder 2 different ways (2 networks).  For ACTG protocols, a CAB protocol draft and lay summary is sent and reviewed by our CAN.  Our PI goes over protocol with CAB and asks for input.  Everyone turns in a questionnaire to the Protocol Development Team.  The MTN is less formal (although they are taking steps to be more formalized)  When the MTN protocol development team wants stakeholder/ community engagement, they send an email to the community working group who then gives input and also asks the CAB members what their input is.  Then that information is conveyed to the protocol development team.