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Abstract Objectives The use of immune checkpoint inhibitors, particularly PD‐1 inhibitors, has revolutionized the treatment of advanced tumors and shown significant improvements in patient survival rates. However, which PD‐1 inhibitor is more effective and safer for a specific indication remains unclear. To address this problem, our study aimed to evaluate the effectiveness and safety of different PD‐1 inhibitors in combination with chemotherapy as first‐line therapy for individuals with advanced non‐small‐cell lung cancer (NSCLC) without driver genes in the real world. Materials and Methods We conducted a retrospective study of individuals diagnosed with aNSCLC who received immune checkpoint inhibitors (ICIs) with modified PD‐1 inhibitors, including Sintilimab, Toripalimab, Tislelizumab, Camrelizumab, or Pembrolizumab as first‐line treatment between March 5th, 2016 and October 20th, 2022. We assessed demographic and clinical information and analyzed clinical response, survival outcomes, and safety profiles. The primary endpoint was overall survival (OS), and the secondary endpoints included progression‐free survival (PFS), objective response rate (ORR), disease control rate (DCR), and safety. Results As of the date cut‐off on October 20th, 2022, the median follow‐up time was 20.62 months. A total of 204 patients were enrolled in the study, including 56 (27.5%) patients receiving modified PD‐1 inhibitors (Sintilimab, Toripalimab, Tislelizumab, or Camrelizumab) in combination with chemotherapy and 148 (72.5%) patients receiving Pembrolizumab in combination with chemotherapy. In the overall cohort, the median overall survival (OS) was 26.9 months (95%CI, 22.3–31.6), the median progression‐free survival (PFS) was 8.4 months (95%CI, 6.9–9.8), and the objective response rate (ORR) and disease control rate (DCR) were 47.6% (95%CI, 29.9–43.6) and 84.3% (95%CI, 78.4–88.9). The mOS of modified PD‐1 inhibitors group and Pembrolizumab group were 30.7 (95%CI, 17.3–44.4) months and 26.8 (95%CI, 22.2–31.4) months. The mPFS of two groups were 8.3(95%CI, 6.9–9.6) months and 8.8 (95%CI, 6.9–10.7) months, respectively. There was no statistical difference between the two groups in terms of OS or PFS. The ORR for the two groups was 48.2% (95%CI, 34.8–61.8) and 47.3% (95%CI, 39.1–5.6), respectively. However, due to the limited sample size, the difference was not statistically significant. On the other hand, the DCR tended to be higher in the Pembrolizumab group (86.5%; 95%CI, 79.7–91.4) compared to the modified PD‐1 inhibitors group (78.6%; 95%CI, 65.2–87.9), and this difference was statistically significant (p = 0.006). In terms of safety, both groups exhibited favorable clinical safety profiles. The only two types of potentially immune‐related adverse events reported were pneumonitis and reactive cutaneous capillary endothelial proliferation (RCCEP). Conclusions The modified PD‐1 inhibitors showed comparable survival outcomes and manageable safety profiles in NSCLC compared to Pembrolizumab. Moreover, these inhibitors exhibited improved accessibility and economic outcomes compared to Pembrolizumab. While there were similarities in drug‐related and immunotherapy‐related adverse reactions between the modified PD‐1 inhibitors and Pembrolizumab, there were some slight differences. Further prospective and retrospective studies would be necessary to validate these findings beyond the scope of the CTONG1901 study.

Abstract Background Esophageal squamous cell carcinoma (ESCC) is one of the most common malignant tumors with a high prevalence and poor prognosis. It is an urgent problem to deeply understand the molecular mechanism of ESCC and develop effective diagnostic and prognostic methods. Methods Using tumor tissue and corresponding paracancerous samples from 141 resected ESCC patients, we assessed Jumonji domain-containing protein 6 (JMJD6) expression using Immunohistochemical (IHC) staining. Kaplan-Meier survival analysis and univariate or multivariate analysis were used to investigate the relationship between JMJD6 expression and clinicopathological features. The expression status and prognostic value of JMJD6 were analyzed by bioinformatics and enrichment analysis. Results The expression of JMJD6 in ESCC samples was higher than that in the corresponding paracancerous samples, and high expression of JMJD6 was positively associated with poor prognosis of ESCC patients. In addition, bioinformatics analysis of the expression and prognosis of JMJD6 in a variety of tumors showed that high expression of JMJD6 was significantly associated with poor overall survival (OS) in ESCC patients. Enrichment analysis indicated that the high expression of genes similar to JMJD6, such as Conserved oligomeric Golgi 1(COG1), Major facilitator superfamily domain 11 (MFSD11) and Death Effector Domain Containing 2 (DEDD2), was associated with poor prognosis of ESCC, suggesting that JMJD6 might be involved in the occurrence and prognosis of ESCC. Conclusion Our study found that JMJD6 expression was significantly increased in ESCC patients and positively correlated with prognosis, indicating that targeting JMJD6 might be an attractive prognostic biomarker and provides a potential treatment strategy for ESCC. Trial registration The study was approved by Tangdu Hospital ethics committee (No. TDLL-202110-02).