COX regression analysis (Tables 4 and 5) discovered that circRNA CCT3 high expression (HR: 1.74, 95% CI: 1.31–2.01, P = 0.002), T stage (HR: 1.81, 95% CI: 1.51–2.13, P = 0.001), and tumor grade (HR: 2.02, 95% CI: 1.32–2.85, P = 0.028) were independent indicators for poor OS in BCa patient, while circRNA CCT3 high expression (HR: 1.95, 95% CI: 1.20–2.64, P = 0.001), T stage (HR: 2.11, 95% CI: 1.21–3.05, P = 0.001), and tumor grade (HR: 2.52, 95% CI: 1.16–3.31, P = 0.035) were those for poor RFS. Here, CCT3 is linked to neoplasm.