Abstract:
:Low-dose radiotherapy (LDRT) given in 2 × 2 Gy is a highly effective and safe treatment for palliation of indolent lymphomas. Otherwise, very little regarding the use of LDRT for diffuse large B-cell lymphoma (DLBCL) has been investigated. We designed a phase 2 trial of LDRT in patients with DLBCL with indication for palliative radiation. Low-dose radiotherapy was administered on symptomatic areas only. Clinical response was assessed 21 days after LDRT and defined as reduction >50% of maximum diameter of the radiated lesions. Quality of life was scored by the European Organisation for Research and Treatment of Cancer QLQ-C30 questionnaire. Tumor subtype (germinal center B-cell type versus activated B-cell type) and the presence of TP53 mutations in pathologic specimens of the target lesion were also evaluated. Twenty-three of twenty-five radiated patients were evaluable for response, and 2 died of disease before the visit at 21 days. The overall response rate was 70% (16 of 23 patients), with 7 complete responses and 9 partial responses (mean duration of response, 6 months; range, 1-39 months). Fifteen patients answered to the QLQ-C30 questionnaires, and an improved quality of life was documented in 9 cases. TP53 mutations were detected in 2 of 6 (33%) nonresponders and in none of the responders (P = .12). Germinal center B-cell type responded better than activated B-cell type (response rate was 83% and 29%, respectively, P = .01). These findings indicate that LDRT is effective for palliation in patients with DLBCL.
journal_name
Hematol Oncoljournal_title
Hematological oncologyauthors
Furlan C,Canzonieri V,Spina M,Michieli M,Ermacora A,Maestro R,Piccinin S,Bomben R,Dal Bo M,Trovo M,Gattei V,Tirelli U,Franchin G,Bulian Pdoi
10.1002/hon.2368subject
Has Abstractpub_date
2017-12-01 00:00:00pages
472-479issue
4eissn
0278-0232issn
1099-1069journal_volume
35pub_type
杂志文章abstract::Therapy with recombinant interleukin-2 (rIL-2) induces clinical response in a significant number of patients with refractory malignant disease. Very few patients with non-Hodgkin's lymphoma (NHL) have been treated with rIL-2. The present study sought to determine if peripheral blood mononuclear cells (PBM) from patien...
journal_title:Hematological oncology
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journal_title:Hematological oncology
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journal_title:Hematological oncology
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journal_title:Hematological oncology
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journal_title:Hematological oncology
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journal_title:Hematological oncology
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journal_title:Hematological oncology
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