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Ref Type | Journal Article | ||||||||||||
PMID | (33446564) | ||||||||||||
Authors | Wainberg ZA, Fuchs CS, Tabernero J, Shitara K, Muro K, Van Cutsem E, Bang YJ, Chung HC, Yamaguchi K, Varga E, Chen JS, Hochhauser D, Thuss-Patience P, Al-Batran SE, Garrido M, Kher U, Shih CS, Shah S, Bhagia P, Chao J | ||||||||||||
Title | Efficacy of Pembrolizumab Monotherapy for Advanced Gastric/Gastroesophageal Junction Cancer with Programmed Death Ligand 1 Combined Positive Score ≥10. | ||||||||||||
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Abstract Text | Pembrolizumab demonstrated efficacy in PD-L1-positive [combined positive score (CPS) ≥1] advanced gastric/gastroesophageal junction (G/GEJ) cancer in the first-, second-, and third-line setting in KEYNOTE-062, KEYNOTE-061, and KEYNOTE-059, respectively. To better delineate the specificity of CPS as a predictor of clinical outcomes, we analyzed pembrolizumab efficacy in patients with CPS ≥ 10 in these trials.Included were patients with CPS ≥ 10 tumors from KEYNOTE-059 cohort 1 (pembrolizumab, n = 46; post hoc), KEYNOTE-061 (pembrolizumab, n = 53; chemotherapy, n = 55; post hoc), and KEYNOTE-062 (pembrolizumab, n = 92; chemotherapy, n = 90; primary). Efficacy outcomes were overall survival (OS), progression-free survival (PFS), objective response rate (ORR), and duration of response (DOR).In KEYNOTE-059, median follow-up was 6 months, median OS was 8 months [95% confidence interval (CI), 5.8-11.1], ORR was 17%, and median (range) DOR was 21 months (3+ to 35+). In KEYNOTE-061, median follow-up was 9 months, median OS (pembrolizumab vs. chemotherapy) was 10 versus 8 months (HR, 0.64; 95% CI, 0.41-1.02), median PFS was 3 months versus 3 months (HR, 0.86; 95% CI, 0.56-1.33), ORR was 25% versus 9%, and median (range) DOR was not reached (4 to 26+ months) versus 7 months (3-7). In KEYNOTE-062, median follow-up was 11 months, median OS (pembrolizumab vs. chemotherapy) was 17 months versus 11 months (HR, 0.69; 95% CI, 0.49-0.97), median PFS was 3 months versus 6 months (HR, 1.09, 95% CI; 0.79-1.49), ORR was 25% versus 38%, and median (range) DOR was 19 months (1+ to 34+) versus 7 months (2+ to 30+).This comprehensive analysis showed consistent improvements toward more favorable clinical outcomes with pembrolizumab across lines of therapy in patients with CPS ≥ 10 G/GEJ cancer. |
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Gene Name | Source | Synonyms | Protein Domains | Gene Description | Gene Role |
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Therapy Name | Drugs | Efficacy Evidence | Clinical Trials |
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Drug Name | Trade Name | Synonyms | Drug Classes | Drug Description |
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Gene | Variant | Impact | Protein Effect | Variant Description | Associated with drug Resistance |
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Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
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CD274 over exp | stomach cancer | predicted - sensitive | Pembrolizumab | Clinical Study - Cohort | Actionable | In a combined analysis of three clinical trials, Keytruda (pembrolizumab) treatment resulted in favorable outcome in gastric or gastroesophageal junction cancer patients with CD274 (PD-L1) combined positive score (CPS) of 10 or higher, median overall survival, objective response rate, and duration of response were 8 mo, 17% (8/46), 21 mo in KEYNOTE-059, 10 mo, 25% (13/53), not reached in KEYNOTE-061, 17 mo, 25% (23/92), 19 mo in KEYNOTE-062 (PMID: 33446564; NCT02335411, NCT02370498, NCT02494583). | 33446564 |
CD274 over exp | gastroesophageal junction adenocarcinoma | predicted - sensitive | Pembrolizumab | Clinical Study - Cohort | Actionable | In a combined analysis of three clinical trials, Keytruda (pembrolizumab) treatment resulted in favorable outcome in gastric or gastroesophageal junction cancer patients with CD274 (PD-L1) combined positive score (CPS) of 10 or higher, median overall survival, objective response rate, and duration of response were 8 mo, 17% (8/46), 21 mo in KEYNOTE-059, 10 mo, 25% (13/53), not reached in KEYNOTE-061, 17 mo, 25% (23/92), 19 mo in KEYNOTE-062 (PMID: 33446564; NCT02335411, NCT02370498, NCT02494583). | 33446564 |