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Poster display session

3028 - KEYNOTE-564: Phase 3 trial of pembrolizumab in the adjuvant treatment of renal cell carcinoma (RCC)

Date

10 Sep 2017

Session

Poster display session

Presenters

Toni Choueiri

Citation

Annals of Oncology (2017) 28 (suppl_5): v295-v329. 10.1093/annonc/mdx371

Authors

T.K. Choueiri1, T. Powles2, T. Zhang3, D.I. Quinn4, J.E. Gschwend5, S.S. Wan6, C. Poehlein6

Author affiliations

  • 1 Genitourinary Oncology, Dana-Farber Cancer Institute, 02215 - Boston/US
  • 2 Centre For Experimental Cancer Medicine, Barts Cancer Institute, Queen Mary University of London, London/GB
  • 3 Oncology, Duke Cancer Center, Durham/US
  • 4 Gu Oncology, USC Norris comprehensive cancer center, 90033 - los angeles/US
  • 5 Oncology, Technical University of Munich, Munich/DE
  • 6 Medical Oncology, Merck & Co., Inc., Kenilworth/US
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Resources

Abstract 3028

Background

Effective adjuvant therapies for patients (pts) with RCC at risk of recurrence after nephrectomy are lacking. Programmed death ligand 1 (PD-L1) and 2 (PD-L2) expression predicts poor prognosis in RCC. Programmed death 1 (PD-1) inhibitors have demonstrated activity in metastatic RCC, and PD-1 may represent a novel therapeutic target in the adjuvant setting. Pembrolizumab is a PD-1 inhibitor that directly blocks the interaction between PD-1 and its ligands, PD-L1 and PD-L2. This randomized, double-blind, placebo-controlled phase 3 trial will evaluate the efficacy and tolerability of pembrolizumab as adjuvant therapy in pts with RCC who have T2 grade 4, T3, T4, N (+), or stage M1 with no evidence of disease (M1 NED) following nephrectomy and/or metastasectomy (NCT03142334).

Trial design

Key inclusion criteria are: age ≥18 years; histologically confirmed RCC with a clear cell component; intermediate-high or high risk of recurrence, or M1 NED; no prior systemic therapy for advanced RCC; disease-free following complete or partial nephrectomy (and metastasectomy in M1 NED pts) with negative surgical margins; and Eastern Cooperative Oncology Group (ECOG) performance status 0-1. Approximately 950 pts will be randomly assigned in a 1:1 ratio to receive pembrolizumab 200 mg every 3 weeks by intravenous infusion, or placebo, continued for up to 17 cycles (∼1 year) or until disease recurrence or treatment discontinuation. Randomization will be stratified by metastasis stage (M0 vs M1 NED); within the M0 group, randomization will be further stratified by ECOG performance status (0 vs 1) and region (US vs rest of world). The primary end point is investigator-assessed disease-free survival (DFS). Radiographic imaging will be performed every 12 weeks. Secondary objectives include overall survival (OS), safety, disease recurrence-specific survival, DFS and OS according to PD-L1 expression status, pharmacokinetics, antidrug antibodies, and patient-reported outcomes. Molecular biomarkers that may be associated with response, safety, pharmacodynamic activity, or mechanism of action will be evaluated as exploratory objectives.

Clinical trial identification

NCT03142334; May 3, 2017

Legal entity responsible for the study

Merck & Co., Inc.

Funding

Merck & Co., Inc.

Disclosure

T.K. Choueiri: Ad Board and/or funding: AstraZeneca Bayer Bristol-Myers Squib Cerulean Eisai, Foundation Medicine Inc Genetech, GlaxoSmithKline, Merck, Novartis, Peloton, Pfizer, Prometheus Labs Inc, Roche, Eisai Exelixis GSK Merck, Tracon. T. Powles: Research Funding/Honoraria/Travel: Pfizer, Merck, AstraZeneca, Roche, Novartis T. Zhang: Owns stock in Capio Biosciences and have received research funding from Janssen, Pfizer, and Acerta. D.I. Quinn: Ad board/funding/honoraria: Pfizer, Bristol-Myers Squib, Merck, EMD Serono, AstraZeneca, Genentech, Exelixis. J.E. Gschwend: Ad board/Honoraria/Travel Expenses: Bayer, Bristol-Myers Squib, Janssen, Novartis, Pfizer, Roche. S.S. Wan: Employment and stock ownership: Merck & Co., Inc. C. Poehlein: Employment: Merck & Co/MSD.

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