The Journal of Practical Medicine ›› 2026, Vol. 42 ›› Issue (2): 185-193.doi: 10.3969/j.issn.1006-5725.2026.02.003

• Oncology: Diagnosis, Treatment and Prevention • Previous Articles    

The efficacy of sintilimab combined with concurrent chemoradiotherapy in the treatment of oligometastatic non-small cell lung cancer and its influence on the levels of serum VEGF, NF-κB and PD-L1 in patients

Huiping ZHU,Jian JIANG(),Chunfeng WU,Chen NI,Yang SUN,Yu SONG   

  1. Department of Oncology,Zhangjiagang First People's Hospital,Zhangjiagang 215600,Jiangsu,China
  • Received:2025-10-24 Online:2026-01-25 Published:2026-01-22
  • Contact: Jian JIANG E-mail:jsdxjiangjian@126.com

Abstract:

Objective To explore the efficacy of sintilimab in combination with concurrent chemoradiotherapy (CCRT) for the treatment of oligometastatic non-small cell lung cancer (NSCLC) and its impact on the levels of serum vascular endothelial growth factor (VEGF), nuclear transcription factor κB (NF-κB), and programmed cell death protein ligand-1 (PD-L1) in patients. Methods From April 2020 to July 2024, a total of 150 patients with oligometastatic NSCLC who received treatment at Zhangjiagang First People's Hospital were randomly assigned to the control group (n = 75, CCRT) and the observation group (n = 75, sintilimab + CCRT) using the random number table method. The short-term therapeutic effects, serum tumor markers, immune function, VEGF, NF-κB, and PD-L1 levels of the two groups were compared before and after treatment. Additionally, the toxic and side effects and prognosis were evaluated. Results The observation group exhibited significantly higher objective response rate and disease control rate (59.72% and 83.33% respectively) compared to the other group (40.00% and 68.57% respectively) (P < 0.05). After treatment, the serum levels of tumor markers, including VEGF, NF-κB, and PD-L1, in the observation group were all significantly lower (P < 0.05), whereas the levels of CD4+ and the ratio of CD4+/CD8+ were significantly higher (P < 0.05). After treatment, the observation group achieved significantly higher scores in the total health status and functional dimension of the Quality of Life scale developed by the European Organization for Research and Treatment of Cancer than the other group (P < 0.05), while having a significantly lower score in the symptom domain (P < 0.05). The observation group exhibited a higher incidence of immune-related adverse reactions (15.28% vs. 0.00%) (P < 0.05). There was no statistically significant difference in other toxic and side effects between the two groups (P > 0.05). The observation group demonstrated better overall survival and progression-free survival functions (P < 0.05). Conclusions Compared with CCRT, the combination of sintilimab and CCRT can enhance the short-term efficacy in NSCLC patients with oligometastasis, boost their immune function, down-regulate tumor markers as well as the levels of serum VEGF, NF-κB, and PD-L1. This is beneficial for improving the patients' prognosis and does not significantly increase severe adverse effects.

Key words: non-small cell lung cancer, oligometastatic, sintilimab, concurrent chemoradiotherapy, vascular endothelial growth factor, nuclear transcription factor κb, programmed cell death protein ligand-1

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