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Table 2 Updated hematologic (immunochemical) response criteria

From: AL Amyloidosis

Hematologic response

Criteria

Complete response (CR)

Negative serum and urine IFE, normal k/l ratio

Very good partial response (VGPR)

dFLC < 40 mg/l

Partial response (PR)

dFLC decrease ≥ 50%

No response (NR)

Other

  1. Abbreviations: IFE, immunofixation electrophoresis; dFLC, difference in concentration between involved and uninvolved free light chains
  2. From Gertz et al. ( 3,4) with permission.