Survival in conventionally treated younger (<60 years) multiple myeloma patients: no improvement during two decades

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Abstract
The patient registers of five prospective population based Nordic studies were reviewed for patients <60 yr. A total of 313 patients with symptomatic multiple myeloma were identified. Thirty-nine of them were judged retrospectively to have been ineligible for intensive chemotherapy regimens. The remaining 274 patients were considered appropriate as a historical control group for comparison with patients treated with high-dose chemotherapy and autologous stem cell support. Of these, 32 had been diagnosed during the period 1970-83, 101 during the period 1984-89 and 141 during the period 1990-92. The median age was 54 yr. Six percent were Durie/Salmon stage I, 38% stage II and 56% stage III. Melphalan-prednisone was used for initial therapy in 87%. Median survival for all patients with symptomatic myeloma was found to be 41 months, and for those selected for the control group 44 months, with no noted differences between the aforementioned diagnostic periods. We conclude that the expected median survival is 44 months for myeloma patients <60 yr who may be considered for high-dose therapy protocols. New developments in chemotherapy and supportive therapy, achieved during the two decades which preceded the use of high-dose chemotherapy with stem cell rescue, have not changed the overall prognosis in multiple myeloma.