5-Azacytidine: A New Active Agent for the Treatment of Acute Leukemia

Author:

Karon Myron12,Sieger Lance13,Leimbrock Suzanne14,Finklestein Jerry Z.15,Nesbit Mark E.16,Swaney Jerry J.17

Affiliation:

1. Division of Hematology, Department of Pediatrics, Childrens Hospital of Los Angeles. and the USC School of Medicine; Department of Pediatrics, Harbor General Hospital, and the UCLA School of Medicine, Torrance, Calif.; the Department of Pediatrics, University of Minnesota School of Medicine, Minneapolis, Minn.; and Childrens Memorial Hospital and the Department of Pediatrics, Northwestern Univers

2. Division of Hematology, Childrens Hospital of Los Angeles, Los Angeles, Calif.; Scholar, Leukemia Society of America.

3. Division of Hematology, Childrens Hospital of Los Angeles, Los Angeles. Calif 90027

4. Division of Hematology, Childrens Hospital of Los Angeles. Los Angeles, Calif 90027.

5. Pediatric Hematology. Harbor General Hospital, Torrance, Calif.

6. University of Minnesota School of Medicine, Minneapolis, Minn.

7. Childrens Memorial Hospital and the Department of Pediatrics, Northwestern University, Chicago, Ill.

Abstract

Abstract Thirty-seven children with acute leukemia were treated with 5-azacytidine in 5-day courses given every 14 days. Six out of 14 children with acute myelogenous leukemia who were adequately treated achieved an M1 marrow. Five of these subsequently developed complete remissions lasting 8 mo, 6 mo, 3 mo, 2 mo, and 2 mo. Of 22 children with acute lymphocytic leukemia, one achieved an M1 marrow and one an M2 marrow. The former attained a complete remission which lasted 3 mo. The maximum tolerated dose is between 150 to 200 mg/sq m on a daily x 5 schedule given every 14 days. The impressive activity of 5-aza-C in patients with acute myelogenous leukemia resistant to cytosine arabinoside indicates that this drug will become an important addition to the therapeutic armamentaria against this type of leukemia.

Publisher

American Society of Hematology

Subject

Cell Biology,Hematology,Immunology,Biochemistry

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