Search Results

You are looking at 1 - 2 of 2 items for

  • Author: Dingwei Ye x
  • Refine by Access: All x
Clear All Modify Search
Full access

Impact of Asian Race on Prognosis in De Novo Metastatic Prostate Cancer

Xudong Ni, Michael Luu, Weiwei Ma, Tingwei Zhang, Yu Wei, Stephen J. Freedland, Dingwei Ye, Timothy J. Daskivich, and Yao Zhu

Background: Little is known about the impact of Asian race on the long-term survival outcomes of males with de novo metastatic prostate cancer (PCa). Understanding racial disparities in survival is critical for accurate prognostic risk stratification and for informing the design of multiregional clinical trials. Methods: This multiple-cohort study included individual patient-level data for males with de novo metastatic PCa from the following 3 cohorts: LATITUDE clinical trial data (n=1,199), the SEER program (n=15,476), and the National Cancer Database (NCDB; n=10,366). Primary outcomes were overall survival (OS) in LATITUDE and NCDB and OS and cancer-specific survival in SEER. Results: Across all 3 cohorts, Asian patients diagnosed with de novo metastatic PCa had better survival than white patients. In LATITUDE, median OS was significantly longer in Asian versus white patients in the androgen deprivation therapy (ADT) + abiraterone + prednisone group (not reached vs 43.8 months; hazard ratio [HR], 0.45; 95% CI, 0.28–0.73; P=.001) as well as in the ADT + placebo group (57.6 vs 32.7 months; HR, 0.51; 95% CI, 0.33–0.78; P=.002). In SEER, among all patients diagnosed with de novo metastatic PCa, median OS was significantly longer in Asian versus white males (49 vs 39 months; HR, 0.76; 95% CI, 0.68–0.84; P<.001). Among those who received chemotherapy, Asian patients again had longer OS (52 vs 42 months; HR, 0.71; 95% CI, 0.52–0.96; P=.025). Using data on cancer-specific survival in SEER resulted in similar conclusions. In NCDB, Asian patients also had longer OS than white patients in aggregate and in subgroups of males treated with ADT or chemotherapy (aggregate: 38 vs 26 months; HR, 0.72; 95% CI, 0.62–0.83; P<.001; ADT subgroup: 41 vs 26 months; HR, 0.71; 95% CI, 0.60–0.84; P<.001; chemotherapy subgroup: 34 vs 25 months; HR, 0.67; 95% CI, 0.57–0.78; P<.001). Conclusions: Asian males have better OS and cancer-specific survival than white males with metastatic PCa across different treatment regimens. This should be considered when assessing prognosis and in designing multinational clinical trials.

Full access

Inherited Mutations in Chinese Men With Prostate Cancer

Yao Zhu, Yu Wei, Hao Zeng, Yonghong Li, Chi-Fai Ng, Fangjian Zhou, Caiyun He, Guangxi Sun, Yuchao Ni, Peter K.F. Chiu, Jeremy Y.C. Teoh, Beihe Wang, Jian Pan, Fangning Wan, Bo Dai, Xiaojian Qin, Guowen Lin, Hualei Gan, Junlong Wu, and Dingwei Ye

Background: Although China accounts for 7.8% of worldwide new prostate cancer (PCa) cases and 14.5% of new deaths according to GLOBOCAN 2020, the risk of PCa associated with germline mutations is poorly defined, hampered in part by lack of nationwide evidence. Here, we sequenced 19 PCa predisposition genes in 1,836 Chinese patients with PCa and estimated disease risk associated with inherited mutations. Patients and Methods: Patients were recruited from 4 tertiary cancer centers (n=1,160) and a commercial laboratory (n=676). Germline DNA was sequenced using a multigene panel, and pathogenic/likely pathogenic (P/LP) mutation frequencies in patients with PCa were compared with populations from the gnomAD (Genome Aggregation Database) and ChinaMAP (China Metabolic Analytics Project) databases. Clinical characteristics and progression-free survival were assessed by mutation status. Results: Of 1,160 patients from hospitals, 89.7% had Gleason scores ≥8, and 65.6% had metastases. P/LP mutations were identified in 8.49% of Chinese patients with PCa. Association with PCa risk was significant for mutations in ATM (odds ratio [OR], 5.9; 95% CI, 3.1–11.1), BRCA2 (OR, 15.3; 95% CI, 10.0–23.2), MSH2 (OR, 15.8; 95% CI, 4.2–59.6), and PALB2 (OR, 5.9; 95% CI, 2.7–13.2). Compared with those without mutations, patients with mutations in ATM, BRCA2, MSH2, or PALB2 showed a poor outcome with treatment using androgen deprivation therapy and abiraterone (hazard ratio, 2.19 [95% CI, 1.34–3.58] and 2.47 [95% CI, 1.23–4.96], respectively) but similar benefit from docetaxel. Conclusions: The present multicenter study confirmed that a significant proportion of Chinese patients with PCa had inherited mutations and identified predisposition genes in this underreported ethnicity. These data provide empirical evidence for precision prevention and prognostic estimation in Chinese patients with PCa.