Freedom from disease progression. Kaplan-Meier analyses of freedom from disease progression calculated from the time of last chemotherapy given before vaccine treatment are shown. (A) Shows the 32 first remission patients divided according to the development of an anti-Id immune response (IR⁺, immune response or IR⁻, no immune response). Separate analyses were performed to examine the role of the presence or absence of disease before vaccine therapy. The patient population subgrouped according to prevaccine disease status is shown in (B, NED, no evidence of disease) and (C, residual disease).