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Abstract
We summarized registry data of the long term observation of 35 patients treated with two autologous transplants. Prognostic factors for overall survival (OS) and DFS were analyzed. The OS was compared with 105 patients from a single transplant group. Two factors were significant in univariate analysis of DFS after the second transplant: response to the first transplant (complete remission (CR) versus progressive disease (PD) p = 0.041) and the disease status at the time of the second autologous stem cell transplantation (ASCT) (CR versus partial remission (PR) p = 0.004; CR versus PD p = 0.0002). In the multivariate analysis only the last of the parameters remain significant (RR 2.30, p = 0.004, 95% CI; 1.30 – 4.04). In the analysis of OS, two factors were significant in univariate analysis: status of the disease at the first transplant (PR versus PD p = 0.008) and response to the first transplant (CR versus PD p = 0.025). None of those factors remained significant in a multivariate analysis. A probability of 5-year survival after the first transplant in patients treated with two transplants was 83% (95% CI; 70 – 97%). A tendency towards better survival was seen in patients treated with two transplants (p = 0.01). The trend toward better survival from the time of diagnosis is kept for those who entered CR or PR after standard chemotherapy (p = 0.097) but not for the whole group (p = 0.13).