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Biotech / Medical : Biotech Valuation
CRSP 53.19-3.7%11:52 AM EST

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To: jj_ who wrote (4305)7/26/2001 1:00:00 AM
From: jj_  Read Replies (1) of 52153
 
dallasnews.com

Wednesday | July 25, 2001


Genetically engineered drug promising against leukemia
07/26/2001

Associated Press

BOSTON – A genetically engineered drug shows great early promise in tracking down and killing a rare leukemia, raising doctors' hopes in the long quest for a magic bullet against cancer.

Eleven of the 16 patients treated in a study of the drug were left with no readily detectable trace of the disease.

The experimental drug relies on a piece of antibody from a mouse's immune system to latch onto the cancer cells while shunning normal cells. A bacterial poison fused to the antibody is carried inside the cancer cells and kills them.

Doctors have long tested mouse antibodies as drugs. Researchers said this drug and similar ones may eventually prove useful for other types of cancer.

Researchers at the National Cancer Institute in Bethesda, Md., developed and tested the drug, a so-called immunotoxin known as BL22, on 16 patients with hairy cell leukemia untreatable by the usual chemotherapy. Their study appears in Thursday's edition of The New England Journal of Medicine.
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