PMID- 32479189 OWN - NLM STAT- MEDLINE DCOM- 20210226 LR - 20221029 IS - 1527-7755 (Electronic) IS - 0732-183X (Print) IS - 0732-183X (Linking) VI - 38 IP - 21 DP - 2020 Jul 20 TI - Safety and Efficacy of Pembrolizumab With Chemoradiotherapy in Locally Advanced Head and Neck Squamous Cell Carcinoma: A Phase IB Study. PG - 2427-2437 LID - 10.1200/JCO.19.03156 [doi] AB - PURPOSE: Pembrolizumab is a humanized monoclonal antibody that blocks interaction between programmed death receptor-1 (PD-1) and its ligands (PD-L1, PD-L2). Although pembrolizumab is approved for recurrent/metastatic head and neck squamous cell carcinoma (HNSCC), its role in the management of locally advanced (LA) disease is not defined. We report a phase IB study evaluating the safety and efficacy of adding pembrolizumab to cisplatin-based chemoradiotherapy in patients with LA HNSCC. PATIENTS AND METHODS: Eligible patients included those with oral cavity (excluding lip), oropharyngeal, hypopharyngeal, or laryngeal stage III to IVB HNSCC (according to American Joint Committee on Cancer, 7th edition, staging system) eligible for cisplatin-based, standard-dose (70 Gy) chemoradiotherapy. Pembrolizumab was administered concurrently with and after chemoradiotherapy with weekly cisplatin. Safety was the primary end point and was determined by incidence of chemoradiotherapy adverse events (AEs) and immune-related AEs (irAEs). Efficacy was defined as complete response (CR) rate on end-of-treatment (EOT) imaging or with pathologic confirmation at 100 days postradiotherapy completion. Key secondary end points included overall (OS) and progression-free survival (PFS). RESULTS: The study accrued 59 patients (human papillomavirus [HPV] positive, n = 34; HPV negative, n = 25) from November 2015 to October 2018. Five patients (8.8%) required discontinuation of pembrolizumab because of irAEs, all of which occurred during concurrent chemoradiotherapy; 98.3% of patients completed the full planned treatment dose (70 Gy) of radiotherapy without any delays >/= 5 days; 88.1% of patients completed the goal cisplatin dose of >/= 200 mg/m(2). EOT CR rates were 85.3% and 78.3% for those with HPV-positive and -negative HNSCC, respectively. CONCLUSION: Pembrolizumab in combination with weekly cisplatin-based chemoradiotherapy is safe and does not impair delivery of curative radiotherapy or chemotherapy in HNSCC. Early efficacy data support further investigation of this approach. FAU - Powell, Steven F AU - Powell SF AD - Sanford Cancer Center, Sanford Health, Sioux Falls, SD. FAU - Gold, Kathryn A AU - Gold KA AD - Moores Cancer Center, University of California San Diego, La Jolla, CA. FAU - Gitau, Mark M AU - Gitau MM AD - Roger Maris Cancer Center, Sanford Health, Fargo, ND. FAU - Sumey, Christopher J AU - Sumey CJ AD - Sanford Cancer Center, Sanford Health, Sioux Falls, SD. FAU - Lohr, Michele M AU - Lohr MM AD - Sanford Cancer Center, Sanford Health, Sioux Falls, SD. FAU - McGraw, Steven C AU - McGraw SC AD - Sanford Cancer Center, Sanford Health, Sioux Falls, SD. FAU - Nowak, Ryan K AU - Nowak RK AD - Sanford Cancer Center, Sanford Health, Sioux Falls, SD. FAU - Jensen, Ashley W AU - Jensen AW AD - Roger Maris Cancer Center, Sanford Health, Fargo, ND. FAU - Blanchard, Miran J AU - Blanchard MJ AD - Roger Maris Cancer Center, Sanford Health, Fargo, ND. FAU - Fischer, Christopher D AU - Fischer CD AD - Radiology, Sanford Health, Sioux Falls, SD. FAU - Bykowski, Julie AU - Bykowski J AD - Moores Cancer Center, University of California San Diego, La Jolla, CA. FAU - Ellison, Christie A AU - Ellison CA AD - Sanford Research, Sanford Health, Sioux Falls, SD. FAU - Black, Lora J AU - Black LJ AD - Sanford Research, Sanford Health, Sioux Falls, SD. FAU - Thompson, Paul A AU - Thompson PA AD - Sanford Research, Sanford Health, Sioux Falls, SD. FAU - Callejas-Valera, Juan L AU - Callejas-Valera JL AD - Sanford Research, Sanford Health, Sioux Falls, SD. FAU - Lee, John H AU - Lee JH AD - ImmunityBio, Culver City, CA. FAU - Cohen, Ezra E W AU - Cohen EEW AD - Moores Cancer Center, University of California San Diego, La Jolla, CA. FAU - Spanos, William C AU - Spanos WC AD - Sanford Cancer Center, Sanford Health, Sioux Falls, SD. LA - eng SI - ClinicalTrials.gov/NCT02586207 GR - P20 GM103548/GM/NIGMS NIH HHS/United States GR - P30 CA023100/CA/NCI NIH HHS/United States GR - R01 DE026125/DE/NIDCR NIH HHS/United States GR - R01 DE029524/DE/NIDCR NIH HHS/United States PT - Clinical Trial, Phase I PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20200601 PL - United States TA - J Clin Oncol JT - Journal of clinical oncology : official journal of the American Society of Clinical Oncology JID - 8309333 RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (Antineoplastic Agents, Immunological) RN - DPT0O3T46P (pembrolizumab) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Antibodies, Monoclonal, Humanized/pharmacology/*therapeutic use MH - Antineoplastic Agents, Immunological/pharmacology/*therapeutic use MH - Chemoradiotherapy/*methods MH - Female MH - Humans MH - Male MH - Middle Aged MH - Retrospective Studies MH - Squamous Cell Carcinoma of Head and Neck/*drug therapy/*radiotherapy PMC - PMC7365766 MID - NIHMS1602423 EDAT- 2020/06/02 06:00 MHDA- 2021/02/27 06:00 PMCR- 2020/06/01 CRDT- 2020/06/02 06:00 PHST- 2020/06/02 06:00 [pubmed] PHST- 2021/02/27 06:00 [medline] PHST- 2020/06/02 06:00 [entrez] PHST- 2020/06/01 00:00 [pmc-release] AID - 1903156 [pii] AID - 10.1200/JCO.19.03156 [doi] PST - ppublish SO - J Clin Oncol. 2020 Jul 20;38(21):2427-2437. doi: 10.1200/JCO.19.03156. Epub 2020 Jun 1.