ArticleThe oncologist2026
Selinexor plus tislelizumab in patients with relapsed/refractory natural killer/T-cell lymphoma after failure of PD-1 blockade: the phase 1b TOUCH trial.
Article in The oncologist, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04425070 (A Phase 1/2, Open-label, Multi-center Study to Evaluate theSafety and Efficacy of Selinexor Combined With Chemotherapy orTislelizumab in Relapsed or Refractory Mature T and NK Cell Lymphoma), which is not on this map. Not yet cited in PubMed.
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A Phase 1/2, Open-label, Multi-center Study to Evaluate theSafety and Efficacy of Selinexor Combined With Chemotherapy orTislelizumab in Relapsed or Refractory Mature T and NK Cell Lymphoma
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Abstract
backgroundRelapsed or refractory extranodal natural killer/T-cell lymphoma (R/R NKTCL) remains a highly lethal disease, particularly after failure of PD-1 blockade-based therapy. Preclinical data suggest that inhibition of exportin-1 (XPO1) may enhance antitumor immunity and synergize with PD-1 blockade. PATIENTS AND
methodsWe conducted a multicenter, open-label phase 1b study (TOUCH, Arm C) evaluating selinexor plus tislelizumab in patients with R/R NKTCL previously treated with L-asparaginase-containing regimens. A standard 3 + 3 dose-escalation design was followed by dose expansion.
resultsSeventeen patients were enrolled; 16 had prior checkpoint inhibitor (CPI) exposure and comprised the efficacy population. No dose-limiting toxicities were observed. Grade ≥3 treatment-emergent adverse events occurred in 52.9% of patients; hematologic toxicities were the most common. Among patients with prior CPI exposure, the overall response rate was 75.0% (12/16), including complete responses in 43.8% (7/16). Responses were observed in patients with primary CPI-refractory disease. With a median follow-up of 21.7 months, median progression-free survival was 6.1 months (95% CI, 2.9-not estimable), and the 2-year progression-free survival rate was 37.5%. Median overall survival was not reached; the 2-year overall survival rate was 73.4%.
conclusionSelinexor plus tislelizumab demonstrated manageable toxicity and substantial activity in patients with relapsed/refractory NKTCL previously treated with CPI, supporting further evaluation of nuclear export inhibition as a strategy to re-engage antitumor immunity after failure of PD-1 blockade. CLINICALTRIALS.GOV IDENTIFIER: NCT04425070.
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