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autologous blood and marrow transplantation - Blog Science ...

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Prince et al. 323<br />

months after transplant<br />

Figure 6. Kaplan Meier estimates of (A) progression-free survival <strong>and</strong> (B) survival from<br />

time of first cycle of high-dose therapy (n=42)<br />

In our phase I study of TCP, nonhematopoietic toxicity determined the MTD (10<br />

g/m 2<br />

for ifosfamide) with the dose-limiting toxicities of renal-tubular acidosis <strong>and</strong><br />

mucositis being observed at the dose of 12.5 g/m 2<br />

. The recommended doses for phase<br />

II <strong>and</strong> HI studies are ifosfamide 10 g/m 2<br />

, thiotepa 350 mg/m 2<br />

, <strong>and</strong> paclitaxel 175<br />

mg/m 2<br />

. Hemorrhagic cystitis was not observed in any of the patients treated. Another<br />

significant but non-dose-limiting toxicity was ifosfamide-induced encephalopathy.<br />

Despite mamtaining an adequate albumin at the time of infusion, the use of aggressive<br />

bicarbonate replacement, <strong>and</strong> methylene blue for the treatment of encephalopathy, the<br />

renal <strong>and</strong> cerebral toxicities were still observed. Because we were developing these<br />

protocols with the intention of using the protocol in a multi-institutional phase DT<br />

study, we felt that the ifosfamide-related cortical <strong>and</strong> renal toxicities were too

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