KCA
Search
- Page Path
- HOME > Search
Original Articles
- Hematologic malignancy
- Intensified First Cycle of Rituximab Plus Eight Cycles of Cyclophosphamide, Doxorubicin, Vincristine, and Prednisolone with Rituximab Chemotherapy for Advanced-Stage or Bulky Diffuse Large B-Cell Lymphoma: A Multicenter Phase II Consortium for Improving Survival of Lymphoma (CISL) Study
- Yu Ri Kim, Jin Seok Kim, Won Seog Kim, Hyeon Seok Eom, Deok-Hwan Yang, Sung Hwa Bae, Hyo Jung Kim, Jae Hoon Lee, Suk-Joong Oh, Sung-Soo Yoon, Jae-Yong Kwak, Chul Won Choi, Min Kyoung Kim, Sung Young Oh, Hye Jin Kang, Seung Hyun Nam, Hyeok Shim, Joon Seong Park, Yeung-Chul Mun, Cheolwon Suh, the Korean Society of Hematology Lymphoma Working Party
- Cancer Res Treat. 2023;55(4):1355-1362. Published online March 30, 2023
- DOI: https://doi.org/10.4143/crt.2023.271
-
Abstract
PDF
Supplementary Material
PubReader
ePub - Purpose
This phase II, open-label, multicenter study aimed to investigate the efficacy and safety of a rituximab intensification for the 1st cycle with every 21-day of rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisolone (R-CHOP-21) among patients with previously untreated advanced-stage or bulky diffuse large B-cell lymphoma (DLBCL).
Materials and Methods
Ninety-two patients with stage III/IV or bulky DLBCL from 21 institutions were administered 8 cycles of R-CHOP-21 with an additional one dose of rituximab intensification on day 0 of the 1st cycle (RR-CHOP). The primary endpoint was a complete response (CR) rate after 3 cycles of chemotherapy.
Results
Among the 92 DLBCL patients assessed herein, the response rate after 3 cycles of chemotherapy was 88.0% (38.0% CR+50.0% partial response [PR]). After the completion of 8 cycles of chemotherapy, the overall response rate was observed for 68.4% (58.7% CR+9.8% PR). The 3-year progression-free survival rate was 64.0%, and the 3-year overall survival rate was 70.4%. Febrile neutropenia was one of the most frequent grade 3 adverse events (40.0%) and 5 treatment-related deaths occurred. Compared with the clinical outcomes of patients who received R-CHOP chemotherapy as a historical control, the interim CR rate was higher in male patients with RR-CHOP (20.5% vs. 48.8%, p=0.016).
Conclusion
Rituximab intensification on days 0 to the 1st cycle of the standard 8 cycles R-CHOP-21 for advanced DLBCL yielded favorable response rates after the 3 cycles of chemotherapy and acceptable toxicities, especially for male patients. ClinicalTrials.gov ID: NCT01054781. -
Citations
Citations to this article as recorded by
- Design, Conduct, and Analysis of Externally Controlled Trials
Jiali Liu, Minghong Yao, Mingqi Wang, Wan Jie, Yanmei Liu, Xiaochao Luo, Jiayidaer Huan, Kelin Deng, Ke Deng, Kang Zou, Ying Zhang, Ling Li, Xin Sun
JAMA Network Open.2025; 8(9): e2530277. CrossRef
- Design, Conduct, and Analysis of Externally Controlled Trials
- 6,778 View
- 275 Download
- 1 Web of Science
- 1 Crossref
- Expression of Multidrug Resistant Genes in Bone Marrow Mononuclear Cells of Patients with Myeloid Leukemia
- Seok Goo Cho, Il Ho Yang, Hyeon Seok Eom, Chang Gi Min, Hee Je Kim, Dong Wook Kim, Jong Wook Lee, Chi Wha Han, Woo Sung Min, Won Il Kim, Chun Choo Kim
- J Korean Cancer Assoc. 1999;31(1):153-164.
-
Abstract
PDF
- PURPOSE
Multidrug resistance mediated by several drug resistant genes impedes the successful outcome of anti-cancer chemotherapy. In this study, we investigated the expressions of drug resistant genes encoding multidrug resistance (MDR1), multidrug resistance-associated protein (MRP), topoisomerase I (Topo I), topoisomerase II g (Topo II a) in narmal volunteers (n=12) in and patients with myeloid leukemia (n=34). Material and Method: We compared the levels of their transcripts in bone matrow mononuclear cells by semiquantitative RT-PCR. The amount of specific transcripts was represented as the optical density ratio of PCR product of target gene to that of B2- microglobulin (MG). Twenty patients of acute myelogenous leukemia (eight in remission state, twelve in refractory) and fourteen patients of chronic myelogenous leukemia (nine in chronic phase and five in blastic crisis) were examined. Twelve normal healthy persons were compared with leukemic patients.
RESULTS
The expression levels of all resistant genes in normal volunteers were relatively high as those of AML patients. Regardless of the disease status including remission status of AML (complete remission versus refractory) and the phase of CML (chronic phase versus blastic phase), the expression levels of all resistant genes in patients with CML were significantly lower than in the patients with AML (p < 0.05). Of interest, the patients with refractary AML did not show any statistical difference in comparison with normal controls and even the patients with AML in complete remission. Among the four drug resistant genes, the optical density ratio of MDRl was significantly lower than that of any other genes (p<0.05). Using HL-60 cell line, we compared the changes of various resistant gene expressions before and after differentiation induced by dimethylsulfoxide. The expressions of resistant genes declined in paralle1 with granulocytic differentiation, suggesting that the induction of cell differentiation might make leukemic cells susceptible to chemotherapeutic agents.
CONCLUSION
It is impossibble to explain the mechanism of drug resistance by comparing the level of drug resistant gene expression between nonnal subjects and patients with myeloid leukemias. Therefore, we suppose that longitudinal study of drug resistant gene expression is necessary to demonstrate the development of drug resistant during chemotherapy.
- 3,121 View
- 14 Download
First
Prev
