PMID- 31145233 OWN - NLM STAT- MEDLINE DCOM- 20200618 LR - 20200618 IS - 1537-4513 (Electronic) IS - 1524-9557 (Linking) VI - 42 IP - 6 DP - 2019 Jul/Aug TI - Association Between Pembrolizumab-related Adverse Events and Treatment Outcome in Advanced Melanoma: Results From the Dutch Expanded Access Program. PG - 208-214 LID - 10.1097/CJI.0000000000000271 [doi] AB - Toxicity of immune checkpoint inhibitors such as ipilimumab and nivolumab is likely associated with clinical efficacy. In this study, we aim to evaluate this association for pembrolizumab. To this end, data of 147 patients included in the Dutch cohort of the Pembrolizumab Expanded Access Program were collected. All data were collected prospectively. Patients with adverse events (AEs) at any time during therapy showed a higher chance of achieving disease control compared with patients without AEs (low-grade AEs vs. no AEs: odds ratio=12.8, P=0.0002, high-grade AEs vs. no AEs: odds ratio=38.5, P=0.0001) according to a multivariate logistic regression analysis. In addition, Cox regression analysis showed a lower risk of death (hazard ratio: 0.51, 95% confidence interval: 0.28-0.97) and disease progression (hazard ratio: 0.54, 95% confidence interval: 0.30-0.98) over time for patients with high-grade AEs at any time during therapy compared with patients without AEs during therapy. To correct for time dependency of occurrence of AEs, a pseudolandmark analysis at 6 months of therapy was performed. Although significance was lost (Wald test P>0.05), prolonged survival in 3 patients who stopped therapy within 6 months due to the occurrence of AEs was observed, suggesting the potential treatment benefit despite the premature ending of therapy. The occurrence of high-grade toxicity at any time during treatment was associated with higher objective response rates, progression-free survival, and overall survival. There remains a need to assess the predictive value of early occurring AEs on patient survival. FAU - Bisschop, Cornelis AU - Bisschop C AD - Department of Medical Oncology, University Medical Center Groningen, Groningen. FAU - Wind, Thijs T AU - Wind TT AD - Department of Medical Oncology, University Medical Center Groningen, Groningen. FAU - Blank, Christian U AU - Blank CU AD - Department of Medical Oncology, Netherlands Cancer Institute NKI-AVL. FAU - Koornstra, Rutger H T AU - Koornstra RHT AD - Department of Medical Oncology, Radboud University Medical Center, Nijmegen. FAU - Kapiteijn, Ellen AU - Kapiteijn E AD - Department of Medical Oncology, Leiden University Medical Center, Leiden. FAU - Van den Eertwegh, Alfonsus J M AU - Van den Eertwegh AJM AD - Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam. FAU - De Groot, Jan Willem B AU - De Groot JWB AD - Oncology Center Isala, Zwolle, The Netherlands. FAU - Jalving, Mathilde AU - Jalving M AD - Department of Medical Oncology, University Medical Center Groningen, Groningen. FAU - Hospers, Geke A P AU - Hospers GAP AD - Department of Medical Oncology, University Medical Center Groningen, Groningen. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Immunother JT - Journal of immunotherapy (Hagerstown, Md. : 1997) JID - 9706083 RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (Antineoplastic Agents, Immunological) RN - DPT0O3T46P (pembrolizumab) SB - IM MH - Antibodies, Monoclonal, Humanized/*adverse effects/therapeutic use MH - Antineoplastic Agents, Immunological/*adverse effects/therapeutic use MH - Clinical Trials as Topic MH - Female MH - Follow-Up Studies MH - Humans MH - Male MH - Melanoma/*drug therapy/etiology/mortality/pathology MH - Neoplasm Staging MH - Netherlands MH - Proportional Hazards Models MH - Treatment Outcome EDAT- 2019/05/31 06:00 MHDA- 2020/06/19 06:00 CRDT- 2019/05/31 06:00 PHST- 2019/05/31 06:00 [pubmed] PHST- 2020/06/19 06:00 [medline] PHST- 2019/05/31 06:00 [entrez] AID - 10.1097/CJI.0000000000000271 [doi] PST - ppublish SO - J Immunother. 2019 Jul/Aug;42(6):208-214. doi: 10.1097/CJI.0000000000000271.