PMID- 37946408 OWN - NLM STAT- MEDLINE DCOM- 20240415 LR - 20240417 IS - 2005-9256 (Electronic) IS - 1598-2998 (Print) IS - 1598-2998 (Linking) VI - 56 IP - 2 DP - 2024 Apr TI - Pembrolizumab for Patients with Relapsed or Refractory Extranodal NK/T-Cell Lymphoma in Korea. PG - 681-687 LID - 10.4143/crt.2023.1042 [doi] AB - PURPOSE: Programmed death-1 blockade with pembrolizumab has shown promising activity in relapsed/refractory (R/R) extranodal natural killer/T-cell lymphoma (NKTCL), but studies are limited, with small patient numbers. MATERIALS AND METHODS: Thirteen institutes involved with the Consortium for Improving Survival of Lymphoma, a Korean lymphoma study group, collected the clinical data of 59 patients treated with pembrolizumab as salvage therapy between 2016 and 2022. RESULTS: The median age of the patients was 60 years (range, 22 to 87 years), and 76.3% had advanced Ann Abor stage disease. Pembrolizumab was given to 35.6%, 40.7%, and 23.7% of the patients as second-, third-, and fourth- or higher-line chemotherapy, respectively. The overall response rate was 40.7%, with 28.8% having complete response. The estimated 2-year progression-free survival (PFS) and overall survival rates for all patients were 21.5% and 28.7%, respectively; for responders, the rates were 53.0% and 60.7%, respectively. Although not statistically significant, Eastern Cooperative Oncology Group performance status >/= 2 (hazard ratio [HR], 1.91; 95% confidence interval [95% CI], 0.93 to 3.94; p=0.078) and stage III or IV disease (HR, 2.59; 95% CI, 0.96 to 6.96; p=0.060) were associated with a trend toward shorter PFS in multivariate analysis. Grade 3 or 4 adverse events (AEs) were noted in 12 patients (20.3%); neutropenia (10.2%), fatigue (6.8%), and pneumonitis (5.1%) were most common AEs. CONCLUSION: In conclusion, while pembrolizumab had a modest effect on patients with R/R NKTCL, it may be a useful salvage therapy for patients with localized disease and good performance status. FAU - Lee, Ji Yun AU - Lee JY AD - Division of Hematology-Oncology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea. FAU - Kwon, Ji Hyun AU - Kwon JH AD - Department of Internal Medicine, Chungbuk National University Hospital, Cheongju, Korea. FAU - Hur, Joon Young AU - Hur JY AD - Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea. FAU - Yi, Jun Ho AU - Yi JH AD - Division of Hematology-Oncology, Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea. FAU - Lee, Ji Hyun AU - Lee JH AD - Division of Hematology-Oncology, Department of Internal Medicine, Dong-A University College of Medicine, Busan, Korea. FAU - Cho, Hyungwoo AU - Cho H AD - Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. FAU - Do, Young Rok AU - Do YR AD - Department of Internal Medicine, Dongsan Medical Center, Daegu, Korea. FAU - Jo, Jae-Cheol AU - Jo JC AD - Department of Hematology and Oncology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea. FAU - Kang, Hye Jin AU - Kang HJ AD - Department of Internal Medicine, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, Seoul, Korea. FAU - Koh, Yougil AU - Koh Y AD - Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea. FAU - Lee, Won Sik AU - Lee WS AD - Department of Internal medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea. FAU - Lim, Sung Nam AU - Lim SN AD - Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea. FAU - Yoon, Sang Eun AU - Yoon SE AD - Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Kim, Seok Jin AU - Kim SJ AD - Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Lee, Jeong-Ok AU - Lee JO AD - Division of Hematology-Oncology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea. LA - eng PT - Journal Article DEP - 20231110 PL - Korea (South) TA - Cancer Res Treat JT - Cancer research and treatment JID - 101155137 RN - DPT0O3T46P (pembrolizumab) RN - 0 (Antibodies, Monoclonal, Humanized) SB - IM MH - Humans MH - Young Adult MH - Adult MH - Middle Aged MH - Aged MH - Aged, 80 and over MH - Antibodies, Monoclonal, Humanized/adverse effects MH - *Lymphoma MH - *Lymphoma, T-Cell/drug therapy MH - Republic of Korea MH - Antineoplastic Combined Chemotherapy Protocols/therapeutic use PMC - PMC11016643 OTO - NOTNLM OT - Efficacy OT - Extranodal natural killer/T-cell lymphoma OT - Pembrolizumab OT - Prognosis COIS- Conflicts of Interest Conflict of interest relevant to this article was not reported. EDAT- 2023/11/10 06:45 MHDA- 2024/04/15 06:42 PMCR- 2024/04/01 CRDT- 2023/11/10 01:36 PHST- 2023/09/13 00:00 [received] PHST- 2023/11/09 00:00 [accepted] PHST- 2024/04/15 06:42 [medline] PHST- 2023/11/10 06:45 [pubmed] PHST- 2023/11/10 01:36 [entrez] PHST- 2024/04/01 00:00 [pmc-release] AID - crt.2023.1042 [pii] AID - crt-2023-1042 [pii] AID - 10.4143/crt.2023.1042 [doi] PST - ppublish SO - Cancer Res Treat. 2024 Apr;56(2):681-687. doi: 10.4143/crt.2023.1042. Epub 2023 Nov 10.