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ABSTRACT: Background
Although rituximab-based high-dose therapy is frequently used in diffuse large B cell lymphoma (DLBCL) patients undergoing autologous hematopoietic cell transplantation (auto-HCT), data supporting the benefits are not available. Herein, we report the impact of rituximab-based conditioning on auto-HCT outcomes in patients who have DLBCL.Methods
Using the Center for International Blood and Marrow Transplant Research (CIBMTR) registry, 862 adult DLBCL patients undergoing auto-HCT between 2003 and 2017 using BEAM (BCNU, etoposide, cytarabine, melphalan) conditioning regimen were included. All patients received frontline rituximab-containing chemoimmunotherapy and had chemosensitive disease pre-HCT. Early chemoimmunotherapy failure was defined as not achieving complete remission (CR) after frontline chemoimmunotherapy or relapse within 1 year of initial diagnosis. The primary outcome was overall survival (OS).Results
The study cohort was divided into 2 groups: BEAM (n = 667) and R-BEAM (n = 195). On multivariate analysis, no significant difference was seen in OS (P = .83) or progression-free survival (PFS) (P = .61) across the 2 cohorts. No significant association between the use of rituximab and risk of relapse (P = .15) or nonrelapse mortality (P = .12) was observed. Variables independently associated with lower OS included older age at auto-HCT (P < .001), absence of CR at auto-HCT (P < .001) and early chemoimmunotherapy failure (P < .001). Older age (P < .0002) and non-CR pre-HCT (P < .0001) were also associated with inferior PFS. There was no significant difference in early infectious complications between the 2 cohorts.Conclusion
In this large registry analysis of DLBCL patients undergoing auto-HCT, the addition of rituximab to the BEAM conditioning regimen had no impact on transplantation outcomes. Older age, absence of CR pre auto-HCT, and early chemoimmunotherapy failure were associated with inferior survival.
SUBMITTER: Jagadeesh D
PROVIDER: S-EPMC7190439 | biostudies-literature | 2020 May
REPOSITORIES: biostudies-literature
Jagadeesh Deepa D Majhail Navneet S NS He Yizeng Y Ahn Kwang W KW Litovich Carlos C Ahmed Sairah S Aljurf Mahmoud M Bacher Ulrike U Badawy Sherif M SM Bejanyan Nelli N Cairo Mitchell M Cerny Jan J Epperla Narendranath N Farhadfar Nosha N Freytes César O CO Gale Robert Peter RP Haverkos Bradley B Hossain Nasheed N Inwards David D Kamble Rammurti T RT Kenkre Vaishalee P VP Lazarus Hillard M HM Lazaryan Aleksandr A Lekakis Lazaros L Mei Matthew M Murthy Hemant S HS Mussetti Alberto A Nathan Sunita S Nishihori Taiga T Olsson Richard F RF Ramakrishnan Geethakumari Praveen P Savani Bipin N BN Yared Jean A JA Fenske Timothy S TS Kharfan-Dabaja Mohamed A MA Sureda Anna A Hamadani Mehdi M
Cancer 20200212 10
<h4>Background</h4>Although rituximab-based high-dose therapy is frequently used in diffuse large B cell lymphoma (DLBCL) patients undergoing autologous hematopoietic cell transplantation (auto-HCT), data supporting the benefits are not available. Herein, we report the impact of rituximab-based conditioning on auto-HCT outcomes in patients who have DLBCL.<h4>Methods</h4>Using the Center for International Blood and Marrow Transplant Research (CIBMTR) registry, 862 adult DLBCL patients undergoing ...[more]