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Key clinical point: Patients with human epidermal growth factor receptor 2-positive (HER2+) early breast cancer (BC) who achieved a pathologic complete response (pCR) with neoadjuvant pertuzumab, trastuzumab, and chemotherapy (nPTC) and then received adjuvant trastuzumab remained at risk for recurrence, indicating the need for alternative therapies.
Major finding: At 4 years, the invasive disease-free survival rates for the overall, node-positive, and node-negative cohorts were 90.0% (95% confidence interval [CI], 84.6%-93.6%), 86.2% (95% CI, 78.1%-91.4%), and 96.0% (95% CI, 88.0%-98.7%), respectively.
Study details: Findings are from a real-world, retrospective analysis of 217 patients with HER2+ locally advanced, high-risk early-stage BC, including 135 patients with node-positive and 77 with node-negative disease. Patients received nPTC, had pCR, and then received adjuvant trastuzumab.
Disclosures: This study was funded by Genentech, Inc. Some investigators including the lead author reported ties with various pharmaceutical companies, including Genentech. J Sussell, A Cheng, and A Fung declared being employees of Genentech, Inc.
Source: O’Shaughnessy J et al. Breast Cancer Res Treat. 2021 Mar 1. doi: 10.1007/s10549-021-06137-3.
Key clinical point: Patients with human epidermal growth factor receptor 2-positive (HER2+) early breast cancer (BC) who achieved a pathologic complete response (pCR) with neoadjuvant pertuzumab, trastuzumab, and chemotherapy (nPTC) and then received adjuvant trastuzumab remained at risk for recurrence, indicating the need for alternative therapies.
Major finding: At 4 years, the invasive disease-free survival rates for the overall, node-positive, and node-negative cohorts were 90.0% (95% confidence interval [CI], 84.6%-93.6%), 86.2% (95% CI, 78.1%-91.4%), and 96.0% (95% CI, 88.0%-98.7%), respectively.
Study details: Findings are from a real-world, retrospective analysis of 217 patients with HER2+ locally advanced, high-risk early-stage BC, including 135 patients with node-positive and 77 with node-negative disease. Patients received nPTC, had pCR, and then received adjuvant trastuzumab.
Disclosures: This study was funded by Genentech, Inc. Some investigators including the lead author reported ties with various pharmaceutical companies, including Genentech. J Sussell, A Cheng, and A Fung declared being employees of Genentech, Inc.
Source: O’Shaughnessy J et al. Breast Cancer Res Treat. 2021 Mar 1. doi: 10.1007/s10549-021-06137-3.
Key clinical point: Patients with human epidermal growth factor receptor 2-positive (HER2+) early breast cancer (BC) who achieved a pathologic complete response (pCR) with neoadjuvant pertuzumab, trastuzumab, and chemotherapy (nPTC) and then received adjuvant trastuzumab remained at risk for recurrence, indicating the need for alternative therapies.
Major finding: At 4 years, the invasive disease-free survival rates for the overall, node-positive, and node-negative cohorts were 90.0% (95% confidence interval [CI], 84.6%-93.6%), 86.2% (95% CI, 78.1%-91.4%), and 96.0% (95% CI, 88.0%-98.7%), respectively.
Study details: Findings are from a real-world, retrospective analysis of 217 patients with HER2+ locally advanced, high-risk early-stage BC, including 135 patients with node-positive and 77 with node-negative disease. Patients received nPTC, had pCR, and then received adjuvant trastuzumab.
Disclosures: This study was funded by Genentech, Inc. Some investigators including the lead author reported ties with various pharmaceutical companies, including Genentech. J Sussell, A Cheng, and A Fung declared being employees of Genentech, Inc.
Source: O’Shaughnessy J et al. Breast Cancer Res Treat. 2021 Mar 1. doi: 10.1007/s10549-021-06137-3.