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Treatment outcomes and clinical relevance of the Follicular Lymphoma International Prognostic Index in Korean follicular lymphoma patients treated with chemotherapy

  • Maeng, Chi Hoon (Division of Hematology and Oncology, Department of Internal Medicine, Kyung Hee University Medical Center) ;
  • Ahn, Sung Woo (Department of Education and Training, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Ryu, Seong-Yoon (Department of Education and Training, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Han, Sungjun (Department of Education and Training, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Ko, Young Hyeh (Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Ji, Jun Ho (Division of Hematology and Oncology, Department of Internal Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine) ;
  • Kim, Won Seog (Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Kim, Seok Jin (Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine)
  • Received : 2014.07.24
  • Accepted : 2015.04.15
  • Published : 2016.05.01

Abstract

Background/Aims: The Follicular Lymphoma International Prognostic Index (FLIPI) and FLIPI2 are well-known prognostic models for patients with follicular lymphoma (FL). However, their prognostic relevance has not been examined before in Korean patients with FL. Methods: We reviewed clinical and laboratory information from our database of patients between 1995 and 2012. In total, 125 patients were stratified in three categories according to FLIPI or FLIPI2 scores: low-, intermediate-, and high-risk groups. We compared FLIPI and FLIPI2 in terms of progression-free survival (PFS) and overall survival (OS). Results: Among the 125 patients, the prognostic value of FLIPI and FLIPI2 was evaluated in 73 patients who fulfilled the criteria of both prognostic models. Risk stratification by FLIPI and FLIPI2 showed significant differences in unfavorable parameters among each risk group, particularly between low- and intermediate-risk groups. The high-risk group b was significantly associated with poor PFS on both FLIPI and FLIPI2 (p < 0.05). However, the OS was significantly different only in the risk groups determined by FLIPI2 (p = 0.042). In a subgroup analysis of patients who received rituximab-containing chemotherapy, the risk stratification of both prognostic models showed a significant impact on PFS, especially in the low-risk group. Conclusions: FLIPI and FLIPI2 are appropriate prognostic models in Korean FL patients, especially for discriminating low-risk patients from intermediate- and high-risk groups.

Keywords

References

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