Prognostic factors in childhood anaplastic large cell lymphoma: Results of a large European intergroup study

Biostatistics and Epidemiology Unit, Institut Gustave-Roussy, Villejuif, France.
Blood (Impact Factor: 10.45). 02/2008; 111(3):1560-6. DOI: 10.1182/blood-2007-07-100958
Source: PubMed


To study prognostic factors of progression/relapse, data concerning 225 children enrolled between 1987 and 1997 in Berlin-Frankfurt-Münster, Société Française d'Oncologie Pédiatrique and United Kingdom Children's Cancer Study Group prospective studies for the treatment of anaplastic large cell lymphoma (ALCL) were merged. Median follow-up was 9.3 years. Five-year overall survival and event-free survival of the whole population was 81% (95% confidence interval, 76%-86%) and 69% (63%-74%), respectively. B symptoms, mediastinal involvement, skin lesions, visceral involvement, St Jude stage 3-4, Ann Arbor stage 3-4, and elevated lactate dehydrogenase increased the risk of progression/relapse in the univariate analysis. In the multivariate analysis, 3 factors remained significant: mediastinal involvement (relative risk [RR] = 2.1 [1.2-3.5]), visceral involvement defined as lung, liver, or spleen involvement (RR = 2.1 [1.3-3.6]), and skin lesions (RR = 1.9 [1.1-3.2]). Five-year progression-free survival (PFS) of the 81 patients with none of these risk factors was 89% [82%-96%], contrasting with a 5-year PFS of 61% [53%-69%] in the 144 patients with at least 1 risk factor (RR = 4.4 [2.2-8.9; P < .001). In conclusion, 3 factors associated with an increased risk of failure in childhood ALCL have been defined: mediastinal involvement, visceral involvement, and skin lesions.

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Available from: Laurence Brugières, Aug 29, 2015
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    • "The only unfavourable factor detected in our patient was the lung involvement. According to French Society of Pediatric Oncology the 3-year Overall Survival rate (OS) and Event Free Survival rate (EFS) were 83% and 66%, respectively, whereas in the BFM group the corresponding survival rates were 81% and 69% respectively [10, 11]. "
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