Thirteen leukemic patients with disease refractory to conventional chemotherapy were treated with 1.0 to 7.5 g/m2 of Cytosine Arabinoside (Ara-C) over 29 drug cycles. Drug infusions were spaced at 12-hour intervals; a maximum of four doses was administered over 36 hours. After single dose tolerance
Treatment of relapsed and refractory acute leukaemia with high-dose cytosine arabinoside and etoposide
โ Scribed by Martin Gore; Ray Powles; Anil Lakhani; Sarah Milan; Jennifer Maitland; Glen Goss; Ann Nandi; Timothy Perren; Garry Forgeson; Jennifer Treleaven; Ayed Zuiable; Fulvio Porta
- Publisher
- Springer
- Year
- 1989
- Tongue
- English
- Weight
- 425 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0344-5704
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โฆ Synopsis
A total of 65 patients under the age of 55 with acute leukaemia received high-dose cytosine arabinoside (Ara-C) in combination with high-dose etoposide without an anthracycline. Complete remission rates for patients with relapsed or refractory acute myelogenous leukaemia (AML) were 15/25 (60%) and 11/16 (69%), respectively. The complete remission rate for patients with refractory or relapsed acute lymphoblastic leukaemia (ALL) was 10/18 (56%). The treatment-related mortality was 17%. Nine patients whose leukaemia relapsed after matched allogeneic, sibling bone-marrow transplantation (BMT) were also treated in this way; the treatment-related mortality in this group was high (7/9) and the duration of remission in the two patients who responded, too short to justify this intensive treatment in such patients. Similarly, patients who underwent BMT after achieving a complete remission with high-dose Ara-C and etoposide did very poorly, only one patient surviving well and disease-free at 8 months. The important finding in this study was the high complete remission rate rapidly obtained in patients with relapsed or refractory AML without using an anthracycline.
๐ SIMILAR VOLUMES
Twenty-five adult patients with refractory acute lymphocytic leukemia received salvage therapy with mitoxantrone 5 mg/m2 intravenously over 1 hour daily for 5 days and cytosine arabinoside 3 g/m2 intravenously over 2 hours every 12 hours for six doses. Overall, nine patients (36%) achieved complete
Forty-four patients with a diagnosis of refractory or relapsed acute myelogenous leukemia received salvage chemotherapy with high-dose cytosine arabinosine 3 g/m2 intravenously over 2 hours every 12 hours for six doses and mitoxantrone 5 mg/m2 intravenously daily for 5 days. Overall 16 patients (36%
The development of resistance to Ara-C by leukemia cells may be a multifactorial process. These include diminished rates of anabolism or increased rate of catabolism to Ara-C, competition for incorporation into DNA by higher pool size of the competing normal metabolite, dCTP and perhaps other mechan