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. 2005 Nov 1;123(6):266–270. doi: 10.1590/S1516-31802005000600003

Table 3. Criteria for defining the response to the “DD Protocol” in patients with multiple myeloma, in accordance with definitions from the European Bone Marrow Transplant group12.

1. Complete response (CR)
  a) Absence of the original monoclonal paraprotein
  b) Less than 5% of plasma cells in bone marrow, confirmed with bone marrow biopsy
2. Partial response (PR)
  a) More than 50% reduction of the monoclonal paraprotein
  b) More than 50% reduction in plasma cells in bone marrow
3. Minimal response (MR)
  a) Less than 50% reduction of the monoclonal paraprotein and plasma cells in the bone marrow
4. Progressive disease (PD)
  a) No response to treatment