Can I Extract Change Action approval route information with webservices on the public cloud?

I'm working on an integration to export some of the change action information from our public cloud 3DX for use in other systems.  I've been able to extract everything I need so far except the users that signed off on the approval route.  From the CA I can see the route template that was used, but I'm not able to find the actual approval route that was started so I can go extract the users that signed off.  Has anyone done this before that can point me in the right direction?