PMID- 27117531 OWN - NLM STAT- MEDLINE DCOM- 20171227 LR - 20220420 IS - 1569-8041 (Electronic) IS - 0923-7534 (Print) IS - 0923-7534 (Linking) VI - 27 IP - 7 DP - 2016 Jul TI - Systematic evaluation of pembrolizumab dosing in patients with advanced non-small-cell lung cancer. PG - 1291-8 LID - 10.1093/annonc/mdw174 [doi] AB - BACKGROUND: In the phase I KEYNOTE-001 study, pembrolizumab demonstrated durable antitumor activity in patients with advanced non-small-cell lung cancer (NSCLC). We sought to characterize the relationship between pembrolizumab dose, exposure, and response to define an effective dose for these patients. PATIENTS AND METHODS: Patients received pembrolizumab 2 mg/kg every 3 weeks (Q3W) (n = 55), 10 mg/kg Q3W (n = 238), or 10 mg/kg Q2W (n = 156). Response (RECIST v1.1) was assessed every 9 weeks. The relationship between the estimated pembrolizumab area under the concentration-time curve at steady state over 6 weeks (AUCss-6weeks) and the longitudinal change in tumor size (sum of longest diameters) was analyzed by regression and non-linear mixed effects modeling. This model was simultaneously fit to all tumor size data, then used to simulate response rates, normalizing the trial data across dose for prognostic covariates (tumor PD-L1 expression and EGFR mutation status). The exposure-safety relationship was assessed by logistic regression of pembrolizumab AUCss-6weeks versus occurrence of adverse events (AEs) of interest based on their immune etiology. RESULTS: Overall response rates were 15% [95% confidence interval (CI) 7%-28%] at 2 mg/kg Q3W, 25% (18%-33%) at 10 mg/kg Q3W, and 21% (95% CI 14%-30%) at 10 mg/kg Q2W. Regression analyses of percentage change from baseline in tumor size versus AUCss-6weeks indicated a flat relationship (regression slope P > 0.05). Simulations showed the exposure-response relationship to be similarly flat, thus indicating that the lowest evaluated dose of 2 mg/kg Q3W to likely be at or near the efficacy plateau. Exposure-safety analysis showed the AE incidence to be similar among the clinically tested doses. CONCLUSIONS: No significant exposure dependency on efficacy or safety was identified for pembrolizumab across doses of 2-10 mg/kg. These results support the use of a 2 mg/kg Q3W dosage in patients with previously treated, advanced NSCLC. CLINICALTRIALSGOV REGISTRY: NCT01295827. CI - (c) The Author 2016. Published by Oxford University Press on behalf of the European Society for Medical Oncology. All rights reserved. For permissions, please email: journals.permissions@oup.com. FAU - Chatterjee, M AU - Chatterjee M AD - Quantitative Pharmacology and Pharmacometrics, Merck & Co., Inc., Kenilworth, USA. FAU - Turner, D C AU - Turner DC AD - Quantitative Pharmacology and Pharmacometrics, Merck & Co., Inc., Kenilworth, USA. FAU - Felip, E AU - Felip E AD - Thoracic Tumors Group, Vall d'Hebron University Hospital, Barcelona, Spain. FAU - Lena, H AU - Lena H AD - Pneumonology Service, Centre Hospitalier Universitaire Rennes, Rennes, France. FAU - Cappuzzo, F AU - Cappuzzo F AD - Department of Medical Oncology, Istituto Toscano Tumori, Ospedale Civile, Livorno, Italy. FAU - Horn, L AU - Horn L AD - Department of Medicine, Vanderbilt Ingram Cancer Center, Nashville, USA. FAU - Garon, E B AU - Garon EB AD - Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, USA. FAU - Hui, R AU - Hui R AD - Department of Medical Oncology, Westmead Hospital and the University of Sydney, Sydney, Australia. FAU - Arkenau, H-T AU - Arkenau HT AD - Department of Medical Oncology, Sarah Cannon Research Institute UK and University College London, London, UK. FAU - Gubens, M A AU - Gubens MA AD - Department of Medicine, University of California, San Francisco, San Francisco. FAU - Hellmann, M D AU - Hellmann MD AD - Department of Medicine, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York. FAU - Dong, D AU - Dong D AD - Quantitative Pharmacology and Pharmacometrics, Merck & Co., Inc., Kenilworth, USA. FAU - Li, C AU - Li C AD - Quantitative Pharmacology and Pharmacometrics, Merck & Co., Inc., Kenilworth, USA. FAU - Mayawala, K AU - Mayawala K AD - Quantitative Pharmacology and Pharmacometrics, Merck & Co., Inc., Kenilworth, USA. FAU - Freshwater, T AU - Freshwater T AD - Quantitative Pharmacology and Pharmacometrics, Merck & Co., Inc., Kenilworth, USA. FAU - Ahamadi, M AU - Ahamadi M AD - Quantitative Pharmacology and Pharmacometrics, Merck & Co., Inc., Kenilworth, USA. FAU - Stone, J AU - Stone J AD - Quantitative Pharmacology and Pharmacometrics, Merck & Co., Inc., Kenilworth, USA. FAU - Lubiniecki, G M AU - Lubiniecki GM AD - Oncology Clinical Research, Merck & Co., Inc., Kenilworth. FAU - Zhang, J AU - Zhang J AD - Biostatistics and Research Design Sciences, Merck & Co., Inc., Kenilworth, USA. FAU - Im, E AU - Im E AD - Oncology Clinical Research, Merck & Co., Inc., Kenilworth. FAU - De Alwis, D P AU - De Alwis DP AD - Quantitative Pharmacology and Pharmacometrics, Merck & Co., Inc., Kenilworth, USA. FAU - Kondic, A G AU - Kondic AG AD - Quantitative Pharmacology and Pharmacometrics, Merck & Co., Inc., Kenilworth, USA. FAU - Flotten, O AU - Flotten O AD - Department of Thoracic Medicine, Haukeland University Hospital, Bergen, Norway oystein.flotten@helse-bergen.no. LA - eng SI - ClinicalTrials.gov/NCT01295827 GR - P30 CA008748/CA/NCI NIH HHS/United States PT - Clinical Trial, Phase I PT - Journal Article PT - Randomized Controlled Trial DEP - 20160426 PL - England TA - Ann Oncol JT - Annals of oncology : official journal of the European Society for Medical Oncology JID - 9007735 RN - 0 (Antibodies, Monoclonal) RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (B7-H1 Antigen) RN - 0 (CD274 protein, human) RN - DPT0O3T46P (pembrolizumab) RN - EC 2.7.10.1 (EGFR protein, human) RN - EC 2.7.10.1 (ErbB Receptors) SB - IM MH - Adult MH - Aged MH - Antibodies, Monoclonal/*administration & dosage/adverse effects MH - Antibodies, Monoclonal, Humanized/*administration & dosage/adverse effects MH - B7-H1 Antigen/genetics MH - Carcinoma, Non-Small-Cell Lung/*drug therapy/genetics MH - Disease-Free Survival MH - Dose-Response Relationship, Drug MH - Drug-Related Side Effects and Adverse Reactions/pathology MH - ErbB Receptors/genetics MH - Female MH - Gene Expression Regulation, Neoplastic/drug effects MH - Humans MH - Male MH - Middle Aged MH - Neoplasm Staging MH - *Prognosis MH - Treatment Outcome PMC - PMC6276906 OTO - NOTNLM OT - PD-L1 OT - exposure-response OT - immunotherapy OT - non-small-cell lung cancer OT - pembrolizumab OT - tumor size modeling EDAT- 2016/04/28 06:00 MHDA- 2017/12/28 06:00 PMCR- 2017/07/01 CRDT- 2016/04/28 06:00 PHST- 2015/11/10 00:00 [received] PHST- 2016/04/04 00:00 [accepted] PHST- 2016/04/28 06:00 [entrez] PHST- 2016/04/28 06:00 [pubmed] PHST- 2017/12/28 06:00 [medline] PHST- 2017/07/01 00:00 [pmc-release] AID - S0923-7534(19)35698-4 [pii] AID - mdw174 [pii] AID - 10.1093/annonc/mdw174 [doi] PST - ppublish SO - Ann Oncol. 2016 Jul;27(7):1291-8. doi: 10.1093/annonc/mdw174. Epub 2016 Apr 26.