scholarly journals Impact of Cell-of-Origin on Outcome of Patients With Diffuse Large B-Cell Lymphoma Treated With Uniform R-CHOP Protocol: A Single-Center Retrospective Analysis From North India

2021 ◽  
Vol 11 ◽  
Author(s):  
Ajay Gogia ◽  
Sukesh Nair ◽  
Shalabh Arora ◽  
Lalit Kumar ◽  
Atul Sharma ◽  
...  

IntroductionThere is a scarcity of data from India on the impact of cell of origin (COO) on outcomes of diffuse large B-cell lymphoma (DLBCL). This study was conducted to evaluate the impact of COO on outcomes of DLBCL patients treated with uniform rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisolone (RCHOP) protocol.Materials and MethodsThis retrospective analysis included patients who received uniform RCHOP chemoimmunotherapy during the study period (2014–2020) at the Department of Medical Oncology at All India Institute of Medical Sciences (AIIMS), New Delhi, India. The patients were classified as germinal center B-cell like (GCB) or activated B-cell (ABC) type using the Hans classification.ResultsFour hundred seventeen patients with median age of 48 years (range, 18–76) and a male-female ratio of 2:1 were included in the analysis. B symptoms and bulky disease were seen in 42.9% and 35.5%. Extranodal involvement was seen in 50.8% of cases. ECOG performance status (0-2) was present in 65%, and 51% presented with advanced disease. GCB subtype was seen in 43%, and 47% were ABC type. Low- and intermediate-risk international prognostic index (IPI) score was seen in 76% of cases. The overall response rate to RCHOP was 85.8%, including a complete response rate of 74.8%. After a median follow-up of 30 months, the 3-year event-free survival (EFS) and overall survival (OS) were 80% and 88%, respectively. The presence of B symptoms and poor ECOG performance status (3-4) was associated with inferior CR rate. Low albumin (p < 0.001), age >60 years (p = 0.001), bulky disease (p < 0.001), and extranodal involvement (p = 0.001) were associated with inferior EFS, whereas a high IPI risk score was associated with an inferior OS (p < 0.001). EFS and OS were not significantly different between the GCB and ABC subtypes. Grade III/IV anemia, neutropenia, and thrombocytopenia were seen in 7.6%, 13.6%, and 2.7% of patients, respectively. Febrile neutropenia was seen in 8.9% of patients, and there were four treatment-related deaths.ConclusionsCell of origin for DLBCL has no impact on CR, EFS, and OS if patients are appropriately treated with standard doses and frequency of RCHOP. RCHOP is well tolerated in our patients, and results are comparable with the Western data.

2019 ◽  
Vol 53 (4) ◽  
pp. 473-479 ◽  
Author(s):  
Chrishanthi Rajasooriyar ◽  
Jeremy Tey ◽  
Lea Choung Wong ◽  
Michelle Poon ◽  
Rao Nandini ◽  
...  

Abstract Background Patients with diffuse large B-cell lymphoma (DLBCL) with bulky disease and/or those who fail to achieve complete response benefit from the addition of radiotherapy (RT). We aim to review the outcome, as well as determine the impact of cell-of-origin, on patients undergoing consolidative RT. Patients and methods Patients with DLBCL treated with radical intent consolidative RT were included. Clinical, pathological and treatment characteristics were extracted from electronic medical records. Survival outcomes and factors that predict for disease-free survival (DFS) were analysed. Results Seventy-four patients were included in this analysis. The median follow up was 3 years (0.7–16 years). Fifty-eight percent of patients had stage I–II disease, and 61% received at least 6 cycles of chemotherapy. Cell-of-origin was discernible in 60% of patients, and approximately half were classified as Germinal centre origin. The 5-year overall survival (OS) of this group was excellent at 92% (median survival not reached). The 5-year DFS was 73% (95% CI 57–83%). Seven percent (n = 5) of patients experienced local recurrence at a median time of 6 months. Failure to achieve complete response post RT and/or initial bulky disease are significant predictors of inferior DFS. There was no association between cell-of-origin and DFS or OS. Conclusions The outcome of patients who received radiotherapy as consolidation is excellent. Patients who fail to achieve complete response after radiotherapy had poorer outcomes. Despite using radiotherapy, presence of bulky disease remains a significant predictor of disease recurrence. We did not find any association of poorer outcomes, with regards to cell-of-origin, in the use of consolidative RT.


2021 ◽  
Vol 9 (A) ◽  
pp. 98-105
Author(s):  
Hussam Zawam ◽  
Noha E. Ibrahim ◽  
Rasha Salama ◽  
Mai Samir ◽  
Walaa Abdelfattah ◽  
...  

BACKGROUND: Despite the growing landscape of genetic drivers in Diffuse Large B-cell Lymphoma, yet their clinical implication is still unclear and R-CHOP regimen remains a “one size fits all” therapy. We aimed in this study to examine the prevalence of EZH2, BCL211 and MYD 88 genetic polymorphisms in DLBCL patients and correlate the results with various clinical and survival outcomes. METHODS: Genotyping of MYD88 (rs387907272 T/C), EZH2 (rs3757441 C/T), and BCL2L11 (rs3789068 A/G) polymorphisms were conducted using real time polymerase chain reaction analysis in a total of 75 DLBCL patients. RESULTS: Most of our cases carried the wild TT genotype of MYD88 gene (64%), the mutant TT genotype of EZH2 gene (52%) and the wild AA genotype of BCL2L11 gene (48%). Regarding cell of origin, Germinal Centre (GC) phenotype was present in 56% of cases while 44% expressed the Post-GC (PGC) phenotype. Poor response outcome to first line R-CHOP was significantly correlated with the mutated CC genotype of MYD 88 (p=0.02), while better response to R-CHOP was significantly associated with younger age <50 years (p <0.0001), good PS (p=0.046), normal LDH level (p=0.003), earlier stage (p <0.0001), good IPI score (p=0.009), absence of extranodal disease (p <0.0001) and absence of bulky disease (p=0.004). The median PFS and the 2 year OS were significantly higher in younger age, earlier stage, good IPI score, absence of extranodal disease, absence of bulky disease and in GC phenotype. CONCLUSIONS: Our results emphasized that the mutated genotype of MYD 88 gene polymorphism is significantly associated with poor response to R-CHOP therapy.


Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 2457-2457
Author(s):  
Dong Hwan Kim ◽  
Hee Du Jung ◽  
Sang Kyun Sohn ◽  
Je-Jung Lee ◽  
Deok-Hwan Yang ◽  
...  

Abstract Background: The precise mechanism of rituximab (R) plus CHOP (R-CHOP) therapy in diffuse large B-cell lymphoma (DLBCL) is not fully elucidated. Besides overcoming bcl-2 mediated chemoresistance, antibody-dependent cellular cytotoxicity (ADCC), which is activated by effector cells via IgG fragment C receptors (FcR), was also proposed as a mechanism of Rituximab. The current study evaluated the impact of FcR polymorphism on the response to R-CHOP therapy for DLBCL with the basis that FcR polymorphism can affect R’s affinity for ADCC effector cells. Patients and Methods: The FcγRIIIa and FcγRIIa gene polymorphisms were determined in DLBCL patients receiving R-CHOP (n=113) comparing to CHOP therapy (n=85). Results: The FcγRIIIa valine (V) allele was significantly correlated with higher complete response rate to R-CHOP compared to phenylalalnine (F) allele (88% in V/V versus 79% in V/F versus 50% in F/F, p=0.002), while no difference was found between FcγRIIa polymorphism. In addition, V/V allele was associated with faster achievement of response than other alleles. The impact of FcγRIIIa gene polymorphism on response rate was not noted in CHOP group. In terms of overall or event-free survival, no difference was found according to FcγRIIIa or FcγRIIa alleles. Conclusion: The FcγRIIIa SNP is predictive of response to R-CHOP, but does not correlate with survival in DLBCL patients.


Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 2770-2770
Author(s):  
Luis Fayad ◽  
Michael Overman ◽  
Barbara Pro ◽  
Peter McLaughlin ◽  
Felipe Samaniego ◽  
...  

Background: Follicular lymphoma grade 3 has a natural history that is more akin to that of diffuse large B-cell lymphoma. The addition of rituximab to standard CHOP has resulted in improved response and survival in diffuse large B-cell lymphoma. Information about outcomes in follicular lymphoma grade 3 is lacking. Methods: A single institution retrospective review of patients with follicular grade 3 lymphoma evaluated at the UTMDACC from 1999 to 2004. Patients were located from the UTMDACC lymphoma database. All patients were initially treated with R-CHOP. Results: Forty-five patients were identified: 51% male, 47% ≥60 years, and 87% follicular grade 3b. The LDH was elevated in 24%, ECOG performance status was >1 in 2%, and >1 site of extranodal involvement was present in 10%. Stage distribution was 11% stage I, 11% stage II, 42% stage III, and 36% stage IV, bulky disease (>7cm) was present in 11%, and B symptoms occurred in 13%. Beta-2 microglobulin was elevated in 57% with values >3 μg/dL in over 50%. IPI distribution was: 46% IPI Low, 38% LI, 11% IH, and 4% IPI High. Overall response rate was 100% with 96% complete responses. Relapse rate by IPI category was 24% for Low IPI, 18% for IPI LI, and 40% for IPI IH, and 100% for the two patients with High IPI. With median follow-up of 33 months, three year failure-free survival (FFS) is 73% (95% CI: 59 to 87%). One patient died (2%) with an overall survival (OS) at three years of 97% (95% CI: 93 to 100%). Conclusion: The addition of rituximab to CHOP provided a high response rate and excellent early survival in this group of mostly good prognosis patients. Relapses were still seen; longer follow-up is needed.


Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 21-21
Author(s):  
Marek Trneny ◽  
Robert Pytlik ◽  
David Belada ◽  
Katerina Kubackova ◽  
Ingrid Vasova ◽  
...  

Abstract Background. Combined immunochemotherapy with CHOP and rituximab have improved the outcome of patients with diffuse large B-cell lymphoma (DLBCL). and related diseases. However, the cure rate of patients with IPI 3–5 or aaIPI 3 is still only about 50% with this regimen. Given the feasibility of previous CLSG regimens based on high-dose CHOP-ESHAP induction and BEAM consolidation, we have conducted a phase II trial combining this approach with rituximab immunotherapy. Patients and methods. Patients aged 18–65 years with DLBCL and age-adjusted IPI (aaIPI) 2–3 were treated with three cycles of high-dose CHOP (MegaCHOP - cyclophosphamide, 3 g/m2, vincristine 2 mg, adriamycin, 75 mg/m2, and prednisone, 300 mg/m2) with G-CSF every 3 weeks, followed by three cycles of ESHAP (etoposide, 240 mg/m2, cisplatin, 100 mg/m2, methylprednisolone, 2000 mg and Ara-C 2000 mg/m2) every 3 weeks. Four to six doses of rituximab 375 mg/m2 were administered on day 1 of each cycle of induction therapy. High-dose therapy (BEAM) followed by autologous stem cell transplant (ASCT) was used as consolidation. Radiotherapy was given to residual masses or sites of bulky disease. Primary endpoint was progression-free survival (PFS), while secondary endpoints were overall survival (OS) and feasibility of the treatment. Results. From April 2002 to October 2006, 105 consecutive patients from 10 centers were recruited. 58% were men and 42% women with median age 46 years (19–63 years). 74% of patients had stage IV disease, 92% had elevated LDH, 53% had performance status &gt;1, 55% had B symptoms and 19% had bone marrow involvement. aaIPI was 2 in 62% of patients and 3 in 38% of patients. 68% of patients received the whole treatment according to the protocol, including ASCT and radiotherapy. Stem cells mobilization according to the protocol was performed in 90% of patients and was successful in 86% of mobilized patients (77% of all patients). 73% of patients ultimately received ASCT (including 3 patients transplanted after ammended treatment) and 51% of patients received planned radiotherapy. Complete remission (CR) was achieved in 83% of all patients and partial remission (PR) in 2%. Early toxic death rate was 6% and 9% patients had primary refractory disease. Of patients who achieved CR or PR, only 6 subsequently relapsed (7%) and two suffered late toxic death (2%). With a median follow-up of 32 months for living patients, the estimated 2-year PFS is 77% and 2-year OS is 81%. Age less than median (46 years) was strongest predictor of favorable outcome (p = 0,00006 for PFS and p = 0,00013 for OS), while there was no effect of stage, LDH, performance status or aaIPI (2-year PFS 79% for aaIPI 2 and 77% for aaIPI 3, 2-year OS 81% for aaIPI 2 and 80% for aaIPI 3). Delivery of ASCT or radiotherapy did not significantly affected PFS in patients who did not suffered early progression or early toxic death, but radiotherapy modestly improved OS of these patients (p = 0,03). Conclusion. R-MEB has proved to be an effective treatment strategy for younger patients with high-risk aggressive B-cell lymphoma. Currently, CLSG is testing whether utilization of early PET scan may decrease toxicity and improve treatment tolerance while maintaining the efficacy of this regimen.


2018 ◽  
Vol 07 (03) ◽  
pp. 200-202 ◽  
Author(s):  
Ajay Gogia ◽  
Chandan K. Das ◽  
Lalit Kumar ◽  
Atul Sharma ◽  
Akash Tiwari ◽  
...  

Abstract Introduction: Diffuse large B-cell lymphoma (DLBCL) is the most common subtype of non-Hodgkin's lymphoma. We conducted a retrospective study to analyze the clinicopathological characteristics, cell of origin, response to therapy, and the outcome of patients with DLBCL. Materials and Methods: This was a retrospective study which included all patients with DLBCL registered at our center, between May 1, 2013, and July 31, 2015. The data regarding demography, clinical presentation, histopathology, stage, prognostic index, treatment, and treatment-related outcome were collected from prospectively maintained clinical case records of the patients. Results: In the study, we included 267 patients. The median age is 49 (20–81) years with male: female ratio of 2:1. B symptoms were seen in 124 (45%) of patients. Early Stages (I and II) were seen in 130 (52%) patients, while advanced Stages (III and 1V) were seen in 119 (48%) patients. Bulky disease (>7.5 cm) was seen in 30% of cases, and bone marrow was involved in 12%. Extranodal involvement is present in 35% of cases. Cell of origin data was available in 160 (60%) of cases, of which 88 (55%) were germinal center and 72 (45%) were activated B cell in origin. The distribution according to the international prognostic index (IPI) was as follows: low risk 40%, intermediate risk 45%, and high risk in 15%. Rituximab was used in 45% of cases. The overall response rate was 84% with a complete response (CR) rate of 70.5%. The CR rates were better with RCHOP compared with CHOP (77% vs. 61.5%, P = 0.001) and good-risk IPI (83.3% vs. 65.2%, P < 0.001) compared with intermediate- and high-risk IPI. Median follow-up period was 24 months, and 2-year event-free survival (EFS) was 70%. The presence of B symptoms, high IPI, failure to attain CR, poor PS, and nonrituximab-based chemotherapy were significantly associated with lower EFS. Conclusions: This is the first study from India, which investigated the impact of chemotherapy with or without rituximab in context of cell of origin. Adding rituximab to CHOP showed better response rate and EFS irrespective of cell of origin.


2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e20063-e20063
Author(s):  
Ajay Gogia ◽  
Sukesh Nair ◽  
Atul Sharma ◽  
Lalit Kumar ◽  
Saumyaranjan Mallick ◽  
...  

e20063 Background: There is a lack of data available regarding the distribution of Non-Hodgkin lymphoma (NHL) subtype, according to a recent WHO- 2016 classification and outcome of diffuse large B cell lymphoma (DLBCL) on the basis of cell of origin (COO) from developing country in Rituximab era. Methods: This is an ambispective study of newly diagnosed patients with NHL, treated in the Department of Medical Oncology, AIIMS, New Delhi. A total of 775 cases of adult ( > 18 years) lymphoma were registered over a period of 5 years (January 2014 to December 2018). Outcome of DLBCL patients who have received uniform RCHOP protocol separately analysed. The patients were classified as germinal center B-cell like (GCB) or activated B-cell (ABC) type using the Hans classification Results: NHL constituted 622 (80.26%) and Hodgkin's lymphoma 153 (19.74%) of the cases. B- cell constituted 553 (88.9%) among all NHL and rest 69 (11.1%) cases were T cell in origin.. Diffuse large B cell lymphoma (DLBCL) was the most common NHL 417(67%) followed by follicular lymphoma 60 (9.64%), mantle cell lymphoma 35 (5.62%), PTCL-NOS 25 (4.01%), ALCL 16 (2.57%),marginal zone lymphoma 14 (2.25%), T-LBL 13(2.1%) and the rest of the cases were rare NHL( < 1% cases each) for e.g. SLL, NK-T, BL, SLVL, AITL etc. Among the 417 cases of DLBCL, 262 (62.8%) cases received rituximab along with CHOP regimen. The median age of RCHOP treated patients was 47.6 years with male female ratio of 2.3:1. B symptoms were seen in 39% patients and bulky disease in 33%. ECOG performance status of 0-2 was present in 67% and 51% presented with advanced disease. GCB was seen in 42% and 44% were ABC. Low risk IPI was seen in 48 % and 40% were intermediate risk IPI. The overall response rate (ORR) was 82 % with a complete response rate (CR) of 75.6 %. Presence of bulky disease and non-radiotherapy treatment protocols were associated with inferior CR rate. After a median follow up of 30 months, the 3-year event free (EFS) survival and overall survival (OS) were 78 % and 88 % respectively. Low albumin ( < 4 gm/dl) and age > 60 years were associated with inferior EFS whereas high IPI risk score was associated with inferior OS. Pre-phase was used in 20% of cases. Grade III/ IV anaemia, neutropenia and thrombocytopenia were seen in 5%, 13% and 2% of patients respectively. Febrile neutropenia was seen in 7 % of patients and there were 3 treatment related death. Rituximab infusion related toxicity was seen in 7 patients. Conclusions: DLBCL is the most common NHL ( GC-42%, ABC-44%). The distribution according to COO dose not impact on CR rate and EFS and OS . RCHOP is well tolerated in our patients and results are comparable with the western data.


2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e20079-e20079
Author(s):  
Sukesh C Nair ◽  
Ajay Gogia ◽  
Lalit Kumar ◽  
Atul Sharma ◽  
Ahitagni Biswas ◽  
...  

e20079 Background: Primary extranodal diffuse large B cell lymphoma (DLBCL) forms upto 40-50% of all cases of DLBCL . Clinicopathological features and outcome of extranodal DLBCL patients especially in the rituximab era are scarce from developing countries. Methods: We carried out an ambispective analysis of newly diagnosed DLBCL patients (n = 417) over a period of 5 years (2014-2018).Of this total cohort 224 (53.7%) were found to have primary or predominant extranodal involvement. Prognostic factors were identified using Cox-regression analyses. Results: Median age was 50 years (18-86) with male female ratio of 2:1. B symptoms were seen in 48% patients and bulky disease in 39%. ECOG performance status of 0 or 1 was present in 50% and 63% presented with advanced disease. Bone was the most common site of extranodal involvement (32%) in our study followed by gastrointestinal tract ( 30%).Cell of origin (based on Hans algorithm) was available in 80% patients with Germinal center subtype (GCB) forming 44% and non-GCB forming 36% of all patients. Bone marrow involvement was present in 13 % patients. Low risk International Prognostic Index (IPI) was seen in 32 % and 41% were having intermediate risk IPI, the remaining being high risk. CHOP based treatment was used in 80 % of cases and rituximab was used in 76% of all cases. The overall response rate was 76% with a complete response rate (CR) of 65.5%. Presence of B-symptoms, central nervous system (CNS) involvement, non R-CHOP regimen and non-radiotherapy treatment protocols were associated with inferior CR rate. After a median follow up of 26 months, the 3-year event free survival and overall survival were 65 % and 82.7 % respectively. Involvement of specific extranodal sites (kidney, adrenals and CNS), high IPI score and use of non R-CHOP regimens were associated with poor EFS and OS on multivariate analysis Conclusions: This is one of the largest studies from India on extranodal DLBCL in the rituximab era. Involvement of specific extranodal sites, high IPI score and use of non R-CHOP regimens were associated with inferior survival.


Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 1190-1190
Author(s):  
Yi Rang Kim ◽  
Dok Hyun Yoon ◽  
Shin Kim ◽  
Kyoungmin Lee ◽  
Eun Hee Kang ◽  
...  

Abstract Aims Primary or secondary central nervous system (CNS) lymphoma is a rare entity which often leads to unsatisfactory outcome. Autologous stem cell transplantation (ASCT) using thiotepa containing regimen as conditioning chemotherapy showed improved outcomes in patients with CNS lymphoma. However, there are insufficient data on response to treatments and safety profile of thiotepa containing regimen in Asian population. We, therefore, aimed to evaluate clinical outcomes including safety profile and response to thiotepa, busulfan and cyclophosphamide (TBC) chemotherapy compared with busulfan, cyclophosphamide and etoposide (BuCyE) as conditioning regimens in patients with CNS lymphoma. Methods From November 2005 to April 2014, patients with primary and secondary CNS lymphoma who underwent one of the two conditioning regimens (TBC or BuCyE) followed by ASCT were included in this retrospective analysis. All patients were less than 66 years of age at the time of ASCT. TBC consists of thiotepa 250 mg/ m2 on day -9 to day -7, busulfan 3.2 mg/kg on day -6 to day-4 and cyclophosphamide 60 mg/kg on day -3 to day -2. BuCyE consists of busulfan 3.2 mg/kg on day -7 to day -5, etoposide 200 mg/m2 twice a day on day -5 to day-4 and cyclophosphamide 50 mg/kg on day -3 and day -2. Patient demographics, ECOG performance status, baseline and follow-up CBC profile, adverse events and radiologic response for 2 years after ASCT were retrospectively reviewed. Response to treatment was assessed by IELSG criteria. Event free survival (EFS), overall survival (OS) and date of engraftment were calculated by Kaplan-Meier method and compared by log-rank test. Adverse events were scored according to National Cancer Institute Common Terminology Criteria of Adverse Event version 4.0. Engraftment was defined as absolute neutrophil count (ANC) > 500 /mm3, and platelet count > 20,000 /mm3. Results Sixty one patients with primary or secondary CNS lymphoma underwent with TBC (n=26) or BuCyE (n=35) as conditioning regimen followed by ASCT. In TBC group, 17 patients (diffuse large B cell lymphoma: 17) had primary CNS lymphoma and 9 patients (diffuse large B cell lymphoma: 7, angioimmunoblastic lymphoma: 1 and T-lymphoblastic lymphoma: 1) had secondary CNS lymphoma. In BuCyE group, 28 patients (diffuse large B cell lymphoma: 27 and peripheral T-cell lymphoma: 1) had primary CNS lymphoma and 7 patients (diffuse large B cell lymphoma: 5, NK-T cell lymphoma: 1 and mantle cell lymphoma: 1) had secondary CNS lymphoma. Median age of TBC group and BuCyE group at ASCT was 52.5 years (range, 18-64 years) and 54 years (range, 26-64 years), respectively. Median ECOG performance status of TBC group and BuCyE group was 1 (range 0-2) and 1 (range 0-1), respectively. After the induction chemotherapy, 11 patients (42.3%) in TBC group and 21 patients (60%) in BuCyE group had already achieved complete remission (CR). In TBC and BuCyE group, CR had been induced in 9 (64.2%) and 11 (78.5%) among patients in partial remission (PR) after ASCT, respectively. With a median follow up period of 8.6 months (range, 0.2 to 18.5 months), 1-year OS rate did not significantly differ between two arms (76.4% in TBC group and 68.6% in BuCyE group, p=0.634). However, 1-year EFS rate was higher in TBC group (72.8%) compared with BuCyE group (45.7%, p=0.034). TBC group achieved ANC engraftment one day earlier compared to BuCyE group (day 8, range 7-12 days vs. day 9, range 7-12 days) (p= 0.011). However, there was no difference in time to engraftment of platelet between TBC group (median 8 days, range 6 to 34 days) and BuCyE group (median 8 days, range 6 to 22 days, p=0.582). Toxicity profiles are summarized in Table 1. Table 1. Toxicity above grade 2 TBC BuCyE p-value Mucositis 92% 14.3% <0.001 Nausea 72% 34.3% 0.004 Vomiting 24% 2.9% 0.017 Diarrhea 84% 25.7% <0.001 AST,ALT elevation 15.4% 2.9% 0.154 Bilirubin elevation 30.8% 5.7% 0.014 Creatinine elevation 7.7% 0% 0.178 Veno-occlusive disease 7.7% 5.7% 1 Bleeding 3.8% 0% 0.426 Conclusions TBC seems to be a feasible conditioning chemotherapy for Korean patients with acceptable toxicity and efficacy. Disclosures No relevant conflicts of interest to declare.


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