Oral etoposide in patients with hematological malignancies: a clinical and pharmacokinetic study

Medical Oncology
E OsbyJ Liliemark

Abstract

Tumor responses after daily oral administration of low-dose etoposide have been demonstrated in both hematological and solid tumors. The aim of the present phase II trial was to determine tumor response, and toxicity and to delineate the pharmacokinetics of oral low-dose etoposide in patients with hematological malignancies in a palliative treatment setting. Thirty-two patients with non-Hodgkin's lymphoma (NHL), acute myeloblastic (AML) and lymphoblastic leukemia, multiple myeloma, and myelodysplastic syndrome (MDS) were included. Patients were given oral etoposide, 100 mg once daily for 14 d in a 21-d cycle. Serum etoposide concentrations were determined on d 1, 7, and 14 of every cycle before etoposide administration and, in addition, 1, 2, 3, 4, and 24 h after drug intake on d 1. The median age of patients was 68 yr (range: 50-89 yr). The median time from diagnosis to inclusion in the study was 21 mo (range: 0.5-144 mo) and most patients had advanced disease and were heavily pretreated. Eleven patients completed three or more cycles. Eight of 11 patients with acute leukemia and 1 of 2 with MDS received only 1 course because of toxicity (n = 5) or progression (n = 4). One patient with AML, a Jehovah's Witness, was treated up-...Continue Reading

Citations

Nov 7, 2019·British Journal of Haematology·Firas El Chaer, Karen K Ballen
Sep 5, 2006·Clinical Cancer Research : an Official Journal of the American Association for Cancer Research·Rena BucksteinMichael Crump
Apr 23, 2021·Cancer & Metabolism·Svetlana B PaninaNatalia V Kirienko

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