This team provides access to the AMP RA/SLE Private Collaboration Portal: https://www.synapse.org/#!Synapse:syn25982655/wiki/611655
Contact the Sage admin team through the ARK Portal Service Desk by submitting a ticket to https://sagebionetworks.jira.com/servicedesk/customer/portal/11 or e-mailing arksupport@sagebionetworks.jira.com