In:
Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 30, No. 15_suppl ( 2012-05-20), p. 8052-8052
Abstract:
8052 Background: In aggressive lymphoma, few reliable clinical data about the use of radioimmunotherapy exist. Pts. with DLBCL registered in the international RIT-Network (RIT-NT) were analyzed with regard to Indication, line of therapy and outcome. Methods: The RIT-NT recruited 1111 pts. between Dec. 2006 and 2010. It is a web-based registry that collects observational data from RIT-treated patients with malignant lymphoma. 232 pts. with DLBCL registered in the database were evaluated in the analysis. Results: 232 pts with DLBCL are registered, 17 pts were excluded. Histologic subtypes: 190 DLBCL, 15 primary mediastinal, 9 large cell anaplastic, 1 intravascular. Median age was 62 years (range 17-88), 27% of pts 〉 70 years old. Stage I 16pts, II 54 pts, III 60 pts, IV 68 pts; 6 extranodal involvement, for 11 pts. stage is not documented. 187 pts had 1-3 previous chemotherapies (Ctx), 21 pts 4-6 previous Ctx, 1 pts had 7 previous Ctx, for 6 pts. previous Ctx is not documented. 15 pts. had previous RIT and 24 pts a stem cell transplantation prior to RIT. 6 pts had bone marrow infiltration prior to RIT, 3 with more than 25%. 87 pts had RIT as first line (8 pts. conditioning, 68 pts consolidation, 1 primary therapy, 10 other), and 84 pts received RIT in relapse (2d to 8 th. line therapy) (2 pts. conditioning, 31 pts consolidation, 26 recurrence, 19 therapy refractory, 6 other). Grade IV° hematotoxicity occured for neutrophils and platelets, grade III° for hemoglobin after RIT. Median time to recovery of blood count was 81 days (range 0-600 days). ORR was 63,3 %; CR 54,4%; PR 8,8%, SD 0,9%, PD 23,7%, N.D. 12%. CR rate first line was 76,3 %, for relapse 44,3%. Mean overall survival (OS) in first line was 26,5 months 14,3 months for pts. treated in relapse or refractory disease. Conclusions: Most pts. with DLBCL in the RIT-N received RIT as consolidation after first line therapy with excellent CR rates and OS compared to published data from risk groups . In relapsed DLBCL RIT is a safe and feasible treatment leading to satisfactory response rates with low toxicity. A prospective randomized phase III trial in front line DLBCL is currently planned (ZEST).
Type of Medium:
Online Resource
ISSN:
0732-183X
,
1527-7755
DOI:
10.1200/jco.2012.30.15_suppl.8052
Language:
English
Publisher:
American Society of Clinical Oncology (ASCO)
Publication Date:
2012
detail.hit.zdb_id:
2005181-5
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