Abstract:
:The International Peripheral T-Cell Lymphoma Project is a collaborative effort designed to gain better understanding of peripheral T-cell and natural killer (NK)/T-cell lymphomas (PTCLs). A total of 22 institutions in North America, Europe, and Asia submitted clinical and pathologic information on PTCLs diagnosed and treated at their respective centers. Of the 1314 eligible patients, 181 had anaplastic large-cell lymphoma (ALCL; 13.8%) on consensus review: One hundred fifty-nine had systemic ALCL (12.1%) and 22 had primary cutaneous ALCL (1.7%). Patients with anaplastic lymphoma kinase-positive (ALK(+)) ALCL had a superior outcome compared with those with ALK(-) ALCL (5-year failure-free survival [FFS], 60% vs 36%; P = .015; 5-year overall survival [OS], 70% vs 49%; P = .016). However, contrary to prior reports, the 5-year FFS (36% vs 20%; P = .012) and OS (49% vs 32%; P = .032) were superior for ALK(-) ALCL compared with PTCL, not otherwise specified (PTCL-NOS). Patients with primary cutaneous ALCL had a very favorable 5-year OS (90%), but with a propensity to relapse (5-year FFS, 55%). In summary, ALK(-) ALCL should continue to be separated from both ALK(+) ALCL and PTCL-NOS. Although the prognosis of ALK(-) ALCL appears to be better than that for PTCL-NOS, it is still unsatisfactory and better therapies are needed. Primary cutaneous ALCL is associated with an indolent course.
journal_name
Bloodjournal_title
Bloodauthors
Savage KJ,Harris NL,Vose JM,Ullrich F,Jaffe ES,Connors JM,Rimsza L,Pileri SA,Chhanabhai M,Gascoyne RD,Armitage JO,Weisenburger DD,International Peripheral T-Cell Lymphoma Project.doi
10.1182/blood-2008-01-134270subject
Has Abstractpub_date
2008-06-15 00:00:00pages
5496-504issue
12eissn
0006-4971issn
1528-0020pii
blood-2008-01-134270journal_volume
111pub_type
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