Primary Objective:
Post-tandem autologous transplant randomized trial of maintenance versus observation: The primary objective is to compare progression-free survival at three years between the two arms.
Tandem autologous transplants versus autologous transplant followed by HLA-matched sibling non-myeloablative allogeneic transplant: The primary objective is to compare progression-free survival at three years between the two arms.
Secondary Objective:
Post-tandem autologous transplant randomized trial of maintenance versus observation: Secondary objectives are to compare 'current' myeloma-stable survival, three-year overall survival, and incidence of progression.
Tandem autologous transplants versus autologous transplant followed by HLA-matched sibling non-myeloablative allogeneic transplant: Secondary objectives are to compare 'current' myeloma-stable survival, three year overall survival, and incidence of progression.
Tertiary Objective:
Post-tandem autologous transplant randomized trial of maintenance versus observation: Tertiary objectives include complete remission (CR) rate and CR+partial remission (PR) rate at 2 and 12 months after the second transplant, time to CR and CR+PR, time to off-study therapy, rate of discontinuation of maintenance therapy and duration of maintenance therapy, incidence of toxicities Grade 3 according to the CTCAE Version 3.0, incidence of infections and quality of life.
Tandem autologous transplants versus autologous transplant followed by HLA-matched sibling non-myeloablative allogeneic transplant: Tertiary objectives include CR and CR+PR rates at 2 and 12 months after the allograft, time to CR and CR+PR, time to second transplant, time to off-study therapy, and quality of life.
Other tertiary outcomes to be evaluated only in the allogeneic transplant arm will include incidence of both primary and secondary graft failure and incidence and severity of graft-versus-host-disease |