Abstract
Purpose
This study aimed to explore the value of cytoreductive nephrectomy (CN) and develop nomograms to predict the prognosis of metastatic renal cell carcinoma (mRCC) patients with receiving radiology therapy or/and chemotherapy (RT/&CT).
Methods
Clinical data of patients with mRCC between 2010 and 2015 were collected from the Surveillance, Epidemiology, and End Results (SEER) database. Prognostic nomograms were constructed to predict the overall survival (OS) and cancer-specific survival (CSS) probability for 1-, 3-, and 5- years in patients with mRCC. A series of validation methods were used to validate the accuracy and reliability of the model, including area under the receiver operating curve (AUC), consistency index (C-index), calibration curve, and decision curve analysis (DCA).
Results
1394 patients were enrolled in this study. All patients were randomly divided into the training cohort (n = 976) and the validation cohort (n = 418). In the training cohort, multivariate Cox regression analysis suggested that pathology grade, histology type, T stage, N stage, surgery, and distant metastasis were independent risk factors for OS and CSS. The AUC and C-index were both over 0.65 in both cohorts, indicating that the nomograms for OS and CSS had satisfactory discriminative power. The calibration curves revealed that the predictive nomograms had a good consistency between the observed and the predicted survival.
Conclusion
This study provided evidence that mRCC patients underwent RT/&CT could gain survival benefits from CN. The prognostic nomogram constructed in our study is reliable and practical, may help guide clinical strategies in the treatment of mRCC.
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Data availability
All the data were presented in the manuscript and supplementary material. No additional data are available.
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Acknowledgements
We sincerely thank the SEER database in providing high quality clinical data for our research. We also gratefully acknowledge Ruihuan Shen and Ziqi Pan for their professional statistical help.
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Contributions
Study design: ZJ, GZ; data collection: QX, WH, HZ, BJ; data analysis and interpretation: YL, HC, YG, ZL; manuscript writing: ZL, BJ.
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The authors declared that this study has received no financial support and there was no conflict of interest.
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The data of this study is obtained from the SEER database. Therefore the ethical approval and informed consent is not applicable.
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432_2023_4885_MOESM1_ESM.tif
Supplementary file1 Figure S1. The Kaplan-Meier curves of OS grouped by clinicopathological variables in the whole population, including Age (≥65, <65) (A,B), Race (White, Black and Other) (C,D), Sex (Male, Female) (E,F), Marital status (Married, Not married) (G,H), Laterality (Left, Right) (I,J), Grade (I and II, III, IV) (K-M), T stage (T1, T2, T3, T4) (N-Q), N stage (N0, N1) (R,S), Histologic type (ccRCC, pRCC and chRCC and CDC) (T,U), and distant metastasis (Bone, Brain, Liver, Lung) (V-Y) (TIF 15854 KB)
432_2023_4885_MOESM2_ESM.tif
Supplementary file2 Figure S2. The Kaplan-Meier curves of CSS grouped by clinicopathological variables in the whole population, including Age (≥65, <65) (A,B), Race (White, Black and Other) (C,D), Sex (Male, Female) (E,F), Marital status (Married, Not married) (G,H), Laterality (Left, Right) (I,J), Grade (I and II, III, IV) (K-M), T stage (T1, T2, T3, T4) (N-Q), N stage (N0,N1) (R,S), Histologic type (ccRCC, pRCC and chRCC and CDC) (T,U), and distant metastasis (Bone, Brain, Liver, Lung) (V-Y) (TIF 15854 KB)
432_2023_4885_MOESM3_ESM.tif
Supplementary file3 Figure S3. The Kaplan-Meier curves of OS in single metastatic site (A), 2 metastatic sites (B) and 3-4 metastatic sites (C); The Kaplan-Meier curves of CSS in single metastatic site (D), 2 metastatic sites (E) and 3-4 metastatic sites (F) (TIF 10573 KB)
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Luo, Z., Jiao, B., Xu, Q. et al. Do patients with metastatic renal cell carcinoma obtain survival benefits from cytoreductive nephrectomy? A population-based study. J Cancer Res Clin Oncol 149, 9657–9670 (2023). https://doi.org/10.1007/s00432-023-04885-x
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DOI: https://doi.org/10.1007/s00432-023-04885-x