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Favourable outcome of patients with childhood acute promyelocytic leukaemia after treatment with reduced cumulative anthracycline doses


Creutzig, U; Zimmermann, M; Dworzak, M; Urban, C; Henze, G; Kremens, B; Lakomek, M; Bourquin, J P; Stary, J; Reinhardt, D (2010). Favourable outcome of patients with childhood acute promyelocytic leukaemia after treatment with reduced cumulative anthracycline doses. British Journal of Haematology, 149(3):399-409.

Abstract

Acute promyelocytic leukaemia (APL) treatment often includes high cumulative doses of anthracyclines, which can cause long-term cardiotoxicity. Here, we report the favourable outcome in 81 paediatric APL patients treated according to the consecutive acute myeloid leukaemia-Berlin/Frankfurt/Muenster (AML-BFM) trials -93/-98/-2004 with an anthracycline-cytarabine regimen in combination with all-trans-retinoid acid (ATRA). Outcomes achieved by treatment with a reduced cumulative anthracycline dose (350 mg/m(2)) were comparable to those reported for studies with higher doses. Five-year overall survival of the total cohort was 89 +/- 4% and event-free survival (pEFS) was 73 +/- 6%. Overall survival was similar when comparing AML-BFM trial periods (trial 93: 88 +/- 8%, 98: 85 +/- 7% and 2004: 94 +/- 8%, P((logrank)) = 0.63). Seventy-five (93%) patients achieved complete remission. Most fatal events occurred during the first 6 weeks of treatment. Long-term cardiotoxicity was observed in one patient. Two patients suffered from secondary haematological malignancies. Salvage treatment was effective in 7/9 patients (78%) with relapsed APL, who now are long-term survivors after second line combination treatment with arsenic trioxide (4/7 patients) and stem cell transplantation (5/7 patients). Our results demonstrate that - combined with ATRA - a lower cumulative anthracycline dose can be used safely to maintain high cure rates and promote the reduction of long-term sequelae, such as cardiotoxicity in APL patients.

Acute promyelocytic leukaemia (APL) treatment often includes high cumulative doses of anthracyclines, which can cause long-term cardiotoxicity. Here, we report the favourable outcome in 81 paediatric APL patients treated according to the consecutive acute myeloid leukaemia-Berlin/Frankfurt/Muenster (AML-BFM) trials -93/-98/-2004 with an anthracycline-cytarabine regimen in combination with all-trans-retinoid acid (ATRA). Outcomes achieved by treatment with a reduced cumulative anthracycline dose (350 mg/m(2)) were comparable to those reported for studies with higher doses. Five-year overall survival of the total cohort was 89 +/- 4% and event-free survival (pEFS) was 73 +/- 6%. Overall survival was similar when comparing AML-BFM trial periods (trial 93: 88 +/- 8%, 98: 85 +/- 7% and 2004: 94 +/- 8%, P((logrank)) = 0.63). Seventy-five (93%) patients achieved complete remission. Most fatal events occurred during the first 6 weeks of treatment. Long-term cardiotoxicity was observed in one patient. Two patients suffered from secondary haematological malignancies. Salvage treatment was effective in 7/9 patients (78%) with relapsed APL, who now are long-term survivors after second line combination treatment with arsenic trioxide (4/7 patients) and stem cell transplantation (5/7 patients). Our results demonstrate that - combined with ATRA - a lower cumulative anthracycline dose can be used safely to maintain high cure rates and promote the reduction of long-term sequelae, such as cardiotoxicity in APL patients.

Citations

19 citations in Web of Science®
25 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Children's Hospital Zurich > Medical Clinic
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:January 2010
Deposited On:21 Feb 2011 16:04
Last Modified:05 Apr 2016 14:48
Publisher:Wiley-Blackwell
ISSN:0007-1048
Publisher DOI:https://doi.org/10.1111/j.1365-2141.2010.08107.x
PubMed ID:20230404

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