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Key clinical point: Pembrolizumab monotherapy as second- or third-line treatment did not improve overall survival (OS) in patients with previously treated metastatic triple-negative breast cancer (TNBC) compared with chemotherapy.
Major finding: Median OS was similar with pembrolizumab vs. chemotherapy in patients with programmed death-ligand 1 combined positive score of 1 or more (10.7 months vs. 10.2 months; P = .073) or 10 or more (12.7 months vs. 11.6 months; P = .057). Dose modification, reduction, interruption, or withdrawal because of adverse events was lower in pembrolizumab (21%) vs. chemotherapy (45%) groups.
Study details: Findings are from phase 3 KEYNOTE-119 trial including 622 patients with metastatic TNBC who underwent 1 or 2 previous treatments, experienced progression on most recent therapy, and received previous treatment with an anthracycline or taxane. Patients were randomly allocated to receive either intravenous pembrolizumab (n=312) or investigator-choice chemotherapy (n=310).
Disclosures: This study was funded by Merck Sharp and Dohme. Some investigators, including the lead author, reported ties with various pharmaceutical companies including Merck Sharp and Dohme.
Source: Winer EP et al. Lancet Oncol. 2021 Mar 4. doi: 10.1016/S1470-2045(20)30754-3.
Key clinical point: Pembrolizumab monotherapy as second- or third-line treatment did not improve overall survival (OS) in patients with previously treated metastatic triple-negative breast cancer (TNBC) compared with chemotherapy.
Major finding: Median OS was similar with pembrolizumab vs. chemotherapy in patients with programmed death-ligand 1 combined positive score of 1 or more (10.7 months vs. 10.2 months; P = .073) or 10 or more (12.7 months vs. 11.6 months; P = .057). Dose modification, reduction, interruption, or withdrawal because of adverse events was lower in pembrolizumab (21%) vs. chemotherapy (45%) groups.
Study details: Findings are from phase 3 KEYNOTE-119 trial including 622 patients with metastatic TNBC who underwent 1 or 2 previous treatments, experienced progression on most recent therapy, and received previous treatment with an anthracycline or taxane. Patients were randomly allocated to receive either intravenous pembrolizumab (n=312) or investigator-choice chemotherapy (n=310).
Disclosures: This study was funded by Merck Sharp and Dohme. Some investigators, including the lead author, reported ties with various pharmaceutical companies including Merck Sharp and Dohme.
Source: Winer EP et al. Lancet Oncol. 2021 Mar 4. doi: 10.1016/S1470-2045(20)30754-3.
Key clinical point: Pembrolizumab monotherapy as second- or third-line treatment did not improve overall survival (OS) in patients with previously treated metastatic triple-negative breast cancer (TNBC) compared with chemotherapy.
Major finding: Median OS was similar with pembrolizumab vs. chemotherapy in patients with programmed death-ligand 1 combined positive score of 1 or more (10.7 months vs. 10.2 months; P = .073) or 10 or more (12.7 months vs. 11.6 months; P = .057). Dose modification, reduction, interruption, or withdrawal because of adverse events was lower in pembrolizumab (21%) vs. chemotherapy (45%) groups.
Study details: Findings are from phase 3 KEYNOTE-119 trial including 622 patients with metastatic TNBC who underwent 1 or 2 previous treatments, experienced progression on most recent therapy, and received previous treatment with an anthracycline or taxane. Patients were randomly allocated to receive either intravenous pembrolizumab (n=312) or investigator-choice chemotherapy (n=310).
Disclosures: This study was funded by Merck Sharp and Dohme. Some investigators, including the lead author, reported ties with various pharmaceutical companies including Merck Sharp and Dohme.
Source: Winer EP et al. Lancet Oncol. 2021 Mar 4. doi: 10.1016/S1470-2045(20)30754-3.