Proactive Investors USA & Canada | Spectrum says FDA removes bioscan requirement for Zevalin cancer treatment Proactive Investors USA & Canada Patients that are now undergoing treatment with Zevalin will get two infusions of cancer drug rituximab followed by a 10 minute injection of Zevalin. The simplified regimen will now be called “RRZ” or rituximab, rituximab, Zevalin. ... FDA Approves the Removal of the Bioscan Requirement for ZEVALIN(R) Treatment Quick Scan Of Spectrum Pharma |