ArticleBlood cancer journal2026
Anti-PD-1 antibody combined with P-GEMOX chemotherapy versus P-GEMOX chemotherapy with or without autologous stem-cell transplantation for previously untreated advanced natural killer/T cell lymphoma: a retrospective cohort study.
Article in Blood cancer journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
We evaluated the effectiveness of adding anti-PD-1 antibody to P-GEMOX regimen in previously untreated advanced-stage natural killer/T-cell lymphoma (NKTCL) compared to P-GEMOX alone or with autologous stem cell transplantation (ASCT). 418 patients (135 and 283 in the immunochemotherapy and chemotherapy groups, respectively) were analyzed from 15 Chinese centers (2014-2023). The median follow-up was 40.7 months. The immunochemotherapy group had a higher objective response rate (ORR) (89.6% versus 77.0%), complete response (CR) rate (77.0% versus 50.5%), 3-year progression-free survival (PFS) rate (64.1% versus 40.7%), and 3-year overall survival (OS) rate (79.5% versus 60.8%) compared to the chemotherapy group. Grade 3-4 neutropenia was more common in the immunochemotherapy group (40.0% versus 20.8% in the chemotherapy group, p < 0.001). Grade 3-4 hematologic toxicities were prevalent during ASCT, whereas anti-PD-1 maintenance was well tolerated. Grade ≥3 non-hematologic adverse events during anti-PD-1 maintenance were rare. In propensity score-matched (PSM) analysis of patients achieving CR after induction (n = 41 per group), the 3-year disease-free survival (DFS) rate was 72.6% for immunochemotherapy plus anti-PD-1 maintenance versus 50.9% for chemotherapy plus ASCT (p = 0.032), and the 3-year OS rate was 91.5% versus 72.9% (p = 0.029). First-line anti-PD-1 antibody plus P-GEMOX followed by anti-PD-1 maintenance shows better response and survival over P-GEMOX chemotherapy alone and P-GEMOX with ASCT, while maintaining acceptable toxicity.
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