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autologous blood and marrow transplantation - Blog Science ...

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Burt et al. 469<br />

toxicity study, we chose patients with primary or secondary progressive disease<br />

who are unable to walk without assistance, including use of a wheelchair.<br />

We have performed transplants in nine patients with multiple sclerosis. Four<br />

patients are >1 year out from <strong>transplantation</strong>. The mobilization regimen is G-CSF<br />

(10 ug/kg/d) with apheresis beginning on day 5. The conditioning regimen is<br />

cyclophosphamide (120 mg/kg divided over 2 days) <strong>and</strong> total-body irradiation<br />

(1200 cGy divided b.i.d. over 4 days). TBI is given in the AP/PA position with a<br />

40% lung block. Nonhematopoietic toxicity has been minimal. Disease activity is<br />

followed by neurologic rating scales, Kurtzke extended status disability scale<br />

(EDSS) <strong>and</strong> Scripps neurologic rating scale (NRS), relapse rate, <strong>and</strong> MRI. To date,<br />

all patients have demonstrated either no progression or slight improvements (>10<br />

point improvement in the Scripps NRS).<br />

SUMMARY<br />

Hematopoietic stem cell <strong>transplantation</strong> has become a therapy for autoimmune<br />

diseases. A few questions can be answered. For example, there are patients with<br />

autoimmune disorders whose disease is life-threatening. In these patients, the risk<br />

benefit ratio of a potentially lethal therapy such as HSCT is justified provided it is<br />

done in an experimental study. Also, in our phase I trials, HSCT was done with<br />

minimal non-hematopoietic toxicity. Efficacy of this procedure is suggested but not<br />

proven by these early phase I studies.<br />

REFERENCES<br />

1. Marmont AM, van Bekkum DW: Stem cell <strong>transplantation</strong> for severe autoimmune dis­<br />

eases: New proposals but still unanswered questions. Bone Marrow Transplant<br />

16:497^t98, 1995.<br />

2. Burt RK, Burns W, Hess A: Bone <strong>marrow</strong> <strong>transplantation</strong> for multiple sclerosis. Bone<br />

Marrow Transplant 16:1-6, 1995.<br />

3. Marmont AM, Tyndall A, Gratwohl A, et al.: Hematopoietic precursor stem cell trans­<br />

plantation for autoimmune diseases. Lancet 345:978,1995.<br />

4. Burt RK: Bone <strong>marrow</strong> <strong>transplantation</strong> for severe autoimmune diseases (S ADS): An idea<br />

whose time has come. Oncology 11:1001-1017, 1997.<br />

5. Fassas A, Annagnostopoulos, Kazis A, Kapinas K, Sakellari I, Kimiskidis V,<br />

Tsompanakou A: Peripheral <strong>blood</strong> stem cell <strong>transplantation</strong> in the treatment of progres­<br />

sive multiple sclerosis: First results of a pilot study. Bone Marrow Transplant 20:631-638,<br />

1997.<br />

6. Burt RK, Traynor AE, Cohen B, Karlin KH, Davis FA, Stefoski D, Terry C, Lobeck L,<br />

Russell EJ, Goolsby C, Rosen S, Gordon LI, Keever-Taylor C, Burns WH: T cell deplet­<br />

ed <strong>autologous</strong> hematopoietic stem cell <strong>transplantation</strong> for multiple sclerosis: Report on<br />

the first three patients. Bone Marrow Transplant 21:537-541, 1998.

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