scholarly journals Outcomes of Six-Dose High-Dose Cytarabine as a Salvage Regimen for Patients with Relapsed/Refractory Acute Myeloid Leukemia

2017 ◽  
Vol 2017 ◽  
pp. 1-4 ◽  
Author(s):  
Brandi Anders ◽  
Lauren Veltri ◽  
Abraham S. Kanate ◽  
Alexandra Shillingburg ◽  
Nilay Shah ◽  
...  
Keyword(s):  
Acute Myeloid Leukemia ◽  
Induction Therapy ◽  
Myeloid Leukemia ◽  
Single Agent ◽  
Disease Free Survival ◽  
High Dose ◽  
Free Survival ◽  
High Dose Cytarabine ◽  
Refractory Acute Myeloid Leukemia ◽  
Acute Myeloid

Relapsed/refractory acute myeloid leukemia (RR-AML) is associated with poor prognosis and long-term disease-free survival requires allogeneic hematopoietic cell transplantation (allo-HCT). Limited data exists, regarding the optimal regimen to obtain remission prior to allo-HCT. Single agent high-dose cytarabine (10–12 doses administered every 12 hours) has been previously used as induction therapy. Six-dose high-dose cytarabine (HiDAC-6), commonly used as a consolidation regimen, has never been evaluated as induction therapy. We present a retrospective review of 26 consecutive patients with RR-AML receiving single agent cytarabine 3 g/m2intravenously every 12 hours on days 1, 3, and 5 for a total of six doses (HiDAC-6). Median follow-up for surviving patients was 10.4 months (range 1.6–112.2 months). Complete remission was obtained in 62% (54% CR and 8% CRi) of the patients. The median relapse-free survival (RFS) was 22.3 months (range 0.7–112 months), event-free survival (EFS) was 4.7 months (range 0.5–112 months), and the overall survival (OS) was 9.6 months (range 1–112 months). Thirty-five percent of patients were able to subsequently proceed to allo-HCT. Treatment-related toxicities included neutropenic fever (38%), infection (35%), neurotoxicity (8%), and skin toxicity (8%). This is the first study to demonstrate HiDAC-6 as an active treatment option for younger patients with RR-AML which can effectively serve as a bridge to allo-HCT without significant toxicity.

scholarly journals A randomized study of high-dose cytarabine in induction in acute myeloid leukemia [see comments]

Blood ◽  
1996 ◽  
Vol 87 (5) ◽  
pp. 1710-1717 ◽  
Author(s):  
JF Bishop ◽  
JP Matthews ◽  
GA Young ◽  
J Szer ◽  
A Gillett ◽  
...  
Keyword(s):  
Acute Myeloid Leukemia ◽  
Myeloid Leukemia ◽  
Univariate Analysis ◽  
Disease Free Survival ◽  
Dose Effect ◽  
Induction Treatment ◽  
High Dose ◽  
Remission Duration ◽  
High Dose Cytarabine ◽  
Acute Myeloid

Abstract High-dose cytarabine (ara-c) may overcome cytarabine resistance in leukemic blasts. It has been used as a successful salvage and in postremission therapy but not as initial induction treatment. Patients aged 15 to 60 years, presenting with newly diagnosed acute myeloid leukemia (AML) were randomized to receive either high-dose cytarabine, 3 g/m2 12 hourly on days 1, 3, 5, and 7 for 8 doses, daunorubicin 50 mg/m2 days 1 to 3, etoposide 75 mg/m2 days 1 to 7, (HIDAC-3–7) or standard dose cytarabine 100 mg/m2 continuous intravenous infusion for 7 days with daunorubicin and etoposide at the same dose and schedule as above (7–3–7). Patients could receive a second or third induction course if complete remission (CR) was not achieved. All patients received the same postinduction consolidation therapy (5–2–5) for 2 courses. Eligible patients had no prior chemotherapy or myelodysplastic disease. Patients have been followed for a median of 4.5 years. Of 301 patients treated, complete response (CR) was achieved in 71% with HIDAC- 3–7 and 74% with 7–3–7. For patients in CR, the estimated median remission duration was 45 months with HIDAC-3–7 and 12 months with 7–3– 7 (P = .0005 univariate analysis, P = .0004 multivariate analysis). The estimated percentage of patients relapse free 5 years after achieving a CR was 49% on HIDAC-3–7 and 24% on 7–3–7. Patients in CR tended to survive longer with HIDAC-3–7 but there were no overall survival differences between the two arms. HIDAC-3–7 was associated with significantly more toxicity in induction with more leukopenia, thrombocytopenia, nausea, and vomiting and eye toxicity (all P < .001) but a similar incidence of severe central nervous system and cerebellar toxicity compared to 7–3–7. The consolidation treatment was the same in both arms but caused significantly more leukopenia and thrombocytopenia in patients previously treated with HIDAC-3–7 induction (P < .0001). We conclude that a dose-effect exists for cytarabine in AML and that HIDAC- 3–7 prolongs remission duration and disease-free survival and is tolerable when used as initial induction therapy in patients with de novo AML.

Patients With t(8;21)(q22;q22) and Acute Myeloid Leukemia Have Superior Failure-Free and Overall Survival When Repetitive Cycles of High-Dose Cytarabine Are Administered

1999 ◽  
Vol 17 (12) ◽  
pp. 3767-3775 ◽  
Author(s):  
John C. Byrd ◽  
Richard K. Dodge ◽  
Andrew Carroll ◽  
Maria R. Baer ◽  
Colin Edwards ◽  
...  
Keyword(s):  
Overall Survival ◽  
Acute Myeloid Leukemia ◽  
Myeloid Leukemia ◽  
High Dose ◽  
Free Survival ◽  
High Dose Cytarabine ◽  
Group B ◽  
To Receive ◽  
Leukemia Group ◽  
Acute Myeloid

PURPOSE: To examine the effect of single compared with repetitive (at least three) cycles of high-dose cytarabine after induction therapy for patients with acute myeloid leukemia (AML) who have the t(8;21)(q22;q22) karyotype. PATIENTS AND METHODS: Patients entered onto the study had AML and t(8;21) and attained a complete remission on four successive Cancer and Leukemia Group B studies. In these studies, either ≥ three cycles of high-dose cytarabine or one cycle of high-dose cytarabine was administered, followed by sequential cyclophosphamide/etoposide and mitoxantrone/diaziquone with or without filgrastim support. Outcomes of these two groups of t(8;21) patients were compared. RESULTS: A total of 50 patients with centrally reviewed AML and t(8;21) were assigned to receive one (n = 29) or ≥ three cycles (n = 21) of high-dose cytarabine as postinduction therapy. The clinical features of these two groups of patients were similar. Initial remission duration for t(8;21) patients assigned to one cycle of high-dose cytarabine was significantly inferior (P = .03), with 62% of patients experiencing relapse with a median failure-free survival of 10.5 months, compared with the group of patients who received ≥ three cycles, in which only 19% experienced relapse and failure-free survival is estimated to be greater than 35 months. Furthermore, overall survival was also significantly compromised (P = .04) in patients assigned to one cycle of high-dose cytarabine, with 59% having died as a consequence of AML, compared with 24% of those who received ≥ three cycles of high-dose cytarabine. CONCLUSION: These data demonstrate that failure-free survival and overall survival of patients with t(8;21)(q22;q22) may be compromised by treatment approaches that do not include sequential high-dose cytarabine therapy.

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