PMID- 8252476 OWN - NLM STAT- MEDLINE DCOM- 19940113 LR - 20190620 IS - 0008-543X (Print) IS - 0008-543X (Linking) VI - 72 IP - 12 DP - 1993 Dec 15 TI - Successful treatment of a patient with adult T-cell leukemia by daily oral administration of low-dose etoposide. Decrease in the amount of HTLV-I proviral DNA revealed by the polymerase chain reaction method. PG - 3614-7 AB - BACKGROUND: Oral administration of low-dose etoposide is known to be effective against various malignancies, including malignant lymphoma. However, the effectiveness of low-dose etoposide as a treatment for adult T-cell leukemia (ATL) has not been established. METHODS: A 74-year-old woman with ATL in acute phase was treated by daily oral administration of low-dose etoposide (25 mg/m2). The authors assayed changes in the surface markers and the amount of human T-cell lymphotropic virus type I (HTLV-I) proviral DNA in peripheral blood mononuclear cells (PBMC) by using flow cytometry and the polymerase chain reaction (PCR) method, respectively. RESULTS: Before treatment, generalized lymphadenopathy and hepatomegaly were observed. In laboratory examination, the leukocyte count was 13.7 x 10(3)/microliters, with 65% abnormal lymphocytes. The percentages of CD3-, CD4-, and CD25-positive cells in PBMC were 84.4%, 84.4%, and 76.5%, respectively. The serum lactic dehydrogenase (LDH) level was 1376 IU/l (normal range, less than 520 IU/l). After the initiation of treatment, lymph-adenopathy and hepatomegaly disappeared, and the serum LDH level was reduced to the normal level before the 20th day of the treatment. On the 55th day of the treatment, CD25-positive cells had virtually disappeared. In addition, the amount of the proviral DNA in PBMC was reduced to approximately one-tenth by this treatment. Subsequently, the patient was in remission for more than 16 months. No side effects were observed. CONCLUSIONS: Daily oral administration of low-dose etoposide can be a safe and effective treatment for patients with ATL. The authors believe this to be the first report of a patient with ATL in whom complete remission (CR) was achieved by this treatment. FAU - Kojima, H AU - Kojima H AD - Division of Hematology, University of Tsukuba, Ibaraki, Japan. FAU - Hori, M AU - Hori M FAU - Shibuya, A AU - Shibuya A FAU - Nagasawa, T AU - Nagasawa T FAU - Miwa, M AU - Miwa M FAU - Abe, T AU - Abe T LA - eng PT - Case Reports PT - Journal Article PL - United States TA - Cancer JT - Cancer JID - 0374236 RN - 0 (DNA, Viral) RN - 6PLQ3CP4P3 (Etoposide) SB - IM MH - Administration, Oral MH - Aged MH - Base Sequence MH - DNA, Viral/*analysis MH - Etoposide/administration & dosage/*therapeutic use MH - Female MH - Human T-lymphotropic virus 1/*genetics MH - Humans MH - Leukemia, T-Cell/*drug therapy/microbiology MH - Molecular Sequence Data MH - Polymerase Chain Reaction MH - Proviruses/*genetics EDAT- 1993/12/15 00:00 MHDA- 1993/12/15 00:01 CRDT- 1993/12/15 00:00 PHST- 1993/12/15 00:00 [pubmed] PHST- 1993/12/15 00:01 [medline] PHST- 1993/12/15 00:00 [entrez] AID - 10.1002/1097-0142(19931215)72:12<3614::aid-cncr2820721211>3.0.co;2-e [doi] PST - ppublish SO - Cancer. 1993 Dec 15;72(12):3614-7. doi: 10.1002/1097-0142(19931215)72:12<3614::aid-cncr2820721211>3.0.co;2-e.