Retrospective Analysis Of Adoptive Til Therapy Plus Anti-Pd1 Therapy In Patients With Chemotherapy-Resistant Metastatic Osteosarcoma
JOURNAL OF IMMUNOLOGY RESEARCH(2020)
摘要
Background. The pathological subtype of osteosarcoma is one of the most common malignant bone tumors. Notably, chemotherapy-resistant metastatic osteosarcoma has been reported to cause significant mortality and shows poor prognosis with the currently available multidisciplinary treatments. This study investigated whether combined adoptive TIL and anti-PD1 therapy improves the prognosis of patients with chemotherapy-resistant metastatic osteosarcoma.Methods. A total of 60 patients with chemotherapy-resistant metastatic osteosarcoma between June 2016 and March 2018 were enrolled. The primary endpoint was to evaluate the safety and adverse effects (AEs) of infusions of TIL and anti-PD1 therapy in the patients. Besides, secondary endpoints included assessing the objective response rate (ORR), progression-free survival time (PFS), and overall survival time (OS).Results. We reported that combined TIL therapy and anti-PD1 therapy is safe and all treatment-related AEs were reversible or manageable. The ORR of all the patients is 36.67%, and patients with more infusions of TIL and CD8(+)TIL, less infusions of CD8(+)PD1(+)TIL, and less infusion of CD4(+)FoxP3(+)TIL exhibited increased PFS and OS.Conclusion. This study determined that combined TIL and anti-PD1 therapy is safe and effective in metastatic osteosarcoma patients with chemotherapy resistance.
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关键词
osteosarcoma,adoptive til therapy,chemotherapy-resistant
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