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autologous blood and marrow transplantation - Blog Science ...

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498 Chapter 9: Long-Term Effects<br />

Engraftment %<br />

100*<br />

r<br />

80 ±5 f<br />

Jkmmmm<br />

' ^ '<br />

w<br />

64 ±6<br />

0 5 10 15 20 25<br />

Figure 3<br />

Mafosfamide adjusted<br />

Mafosfamide constant<br />

p = 0.029<br />

• 1 1 1<br />

30 35 40 45<br />

Months<br />

a plateau starting at 24 months) consisted of patients receiving higher <strong>marrow</strong><br />

doses evaluated prepurging <strong>and</strong> lower residual doses postpurging. Patients with the<br />

reverse (lower doses prepurging, higher residual doses postpurging) were in the<br />

worst category (LFS 23 ± 8%). The intermediate group (LFS 45 ± 5%) combined<br />

patients receiving higher doses prepurging but also higher residual doses<br />

postpurging <strong>and</strong> those receiving lower doses prepurging <strong>and</strong> also lower residual<br />

doses postpurging.<br />

Overall survival. Age, stem cell dose prepurging, <strong>and</strong> stem cell dose<br />

postpurging defined four prognostic groups (Fig. 6). The best group (group 1: OS<br />

77 ± 7% at 5 years with a plateau starting at 25 months) consisted of patients<br />

Table 7. Engraftment according to cryopreservation efficiency<br />

Fraction of patients engrafted<br />

PMN Platelets<br />

Cryopreservation efficiency 30 days 60 days 6 months 12 months P value<br />

56 51 ±6 85 ±4 68 ± 6 76 ± 6 0.02<br />

>56 73 ± 5 90 ± 3 77 ± 5 85 ± 54 0.12

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