The new guidelines for the treatment of relapsed multiple myeloma are available at this link (PDF file with guidelines).
The guidelines classify relapsed patients into standard-risk, intermediate-risk, and high-risk categories based primarily on chromosomal abnormalities, but also on length of time in remission (or since diagnosis).
Treatment recommendations are made for patients in first relapse and in second relapse.
For first relapse, the recommended treatment depends heavily on whether or not the patient had an upfront transplant and whether or not they have been on maintenance therapy.
For second and later relapses, patients are divided into three possible categories:
- Those who do not have plasma cell leukemia (PCL) or extramedullary disease (EMD)
- Those with PCL or extensive EMD
- Those who are "quadruple refractory"
