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autologous blood and marrow transplantation - Blog Science ...

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Gorin<br />

Table 5. Engraftment according to mafosfamide dose<br />

Fraction of patients engrafted<br />

497<br />

By day 30 By day 60 P value<br />

Treated in vitro<br />

Lower mafosfamide dose 51 ±5 87 ±4 0.03<br />

Higher mafosfamide dose 66 ±5 91 ±3<br />

Actually infused<br />

Lower mafosfamide dose 57 ±5 88 ±3 0.5<br />

Higher mafosfamide dose 61 ±5 90 ±3<br />

Table 6. Platelet recovery according to mafosfamide dose<br />

Fraction of patients engrafted<br />

By 6 months By 12 months P value<br />

Treated in vitro<br />

Lower mafosfamide dose 65 + 6 72 ±6 0.04<br />

Higher mafosfamide dose 78 ±5 83 ±4<br />

Actually infused<br />

Lower mafosfamide dose 65 ±5 73 ±5 0.2<br />

Higher mafosfamide dose 78 + 5 82 ±5<br />

engraftment (97 ± 3% engraftment probability at 6 months), a poor-risk group (55<br />

± 7%), <strong>and</strong> an intermediate group (75 ± 6%). The good-risk group consisted of<br />

patients with ALL receiving <strong>marrow</strong> purged with mafosfamide with the adjustment<br />

technique. The poor-risk group included AML patients receiving lower doses of<br />

<strong>marrow</strong> <strong>and</strong> ALL patients receiving <strong>marrow</strong> purged with mafosfamide according<br />

to the unique-dose technique. The intermediate group consisted of AML patients<br />

receiving higher doses of <strong>marrow</strong>.<br />

Transplant-related mortality. Age <strong>and</strong> stem cell dose prepurging defined four<br />

groups. The best one, with a TRM of 2 ± 2%, consisted of younger patients<br />

receiving higher doses of <strong>marrow</strong>. The worst one, with a. TRM of 42 ± 9%,<br />

consisted of older patients receiving lower doses of <strong>marrow</strong>. Two intermediate<br />

groups were defined for older patients receiving higher doses of <strong>marrow</strong><br />

(intermediate/good: 11 ± 5%) <strong>and</strong> for younger patients receiving lower doses of<br />

<strong>marrow</strong> (intermediate/poor: 26 ± 6%).<br />

Leukemia-free survival. With the dose of stem cells prepurging <strong>and</strong> the residual<br />

dose postpurging, three groups were identified. The best (LFS 70% at 10 years with

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