RT Journal Article T1 Afatinib vs Placebo as Adjuvant Therapy After Chemoradiotherapy in Squamous Cell Carcinoma of the Head and Neck: A Randomized Clinical Trial. A1 Burtness, Barbara A1 Haddad, Robert A1 Dinis, Jose A1 Trigo, Jose A1 Yokota, Tomoya A1 de-Souza-Viana, Luciano A1 Romanov, Ilya A1 Vermorken, Jan A1 Bourhis, Jean A1 Tahara, Makoto A1 Martins-Segalla, Jose Getulio A1 Psyrri, Amanda A1 Vasilevskaya, Irina A1 Nangia, Chaitali Singh A1 Chaves-Conde, Manuel A1 Kiyota, Naomi A1 Homma, Akihiro A1 Holeckova, Petra A1 Del-Campo, Josep Maria A1 Asarawala, Nirav A1 Nicolau, Ulisses Ribaldo A1 Rauch, Daniel A1 Even, Caroline A1 Wang, Bushi A1 Gibson, Neil A1 Ehrnrooth, Eva A1 Harrington, Kevin A1 Cohen, Ezra E W K1 Carboplatin K1 Squamous Cell Carcinoma of Head and Neck K1 Disease-Free Survival K1 Hypopharynx K1 Neoplasm Recurrence, Local AB Locoregionally advanced head and neck squamous cell cancer (HNSCC) is treated curatively; however, risk of recurrence remains high among some patients. The ERBB family blocker afatinib has shown efficacy in recurrent or metastatic HNSCC. To assess whether afatinib therapy after definitive chemoradiotherapy (CRT) improves disease-free survival (DFS) in patients with HNSCC. This multicenter, phase 3, double-blind randomized clinical trial (LUX-Head & Neck 2) studied 617 patients from November 2, 2011, to July 4, 2016. Patients who had complete response after CRT, comprising radiotherapy with cisplatin or carboplatin, with or without resection of residual disease, for locoregionally advanced high- or intermediate-risk HNSCC of the oral cavity, hypopharynx, larynx, or oropharynx were included in the study. Data analysis was of the intention-to-treat population. Patients were randomized (2:1) to treatment with afatinib (40 mg/d) or placebo, stratified by nodal status (N0-2a or N2b-3) and Eastern Cooperative Oncology Group performance status (0 or 1). Treatment continued for 18 months or until disease recurrence, unacceptable adverse events, or patient withdrawal. The primary end point was DFS, defined as time from the date of randomization to the date of tumor recurrence or secondary primary tumor or death from any cause. Secondary end points were DFS at 2 years, overall survival (defined as time from the date of randomization to death), and health-related quality of life. A total of 617 patients were studied (mean [SD] age, 58 [8.4] years; 528 male [85.6%]). Recruitment was stopped after a preplanned interim futility analysis on July 4, 2016, on recommendation from an independent data monitoring committee. Treatment was discontinued. Median DFS was 43.4 months (95% CI, 37.4 months to not estimable) in the afatinib group and not estimable (95% CI, 40.1 months to not estimable) in the placebo group (hazard ratio, 1.13; 95% CI, 0.81-1.57; stratified log-rank test Pā€‰=ā€‰.48). The most common grade 3 and 4 drug-related adverse effects were acneiform rash (61 [14.8%] of 411 patients in the afatinib group vs 1 [0.5%] of 206 patients in the placebo group), stomatitis (55 [13.4%] in the afatinib group vs 1 [0.5%] in the placebo group), and diarrhea (32 [7.8%] in the afatinib group vs 1 [0.5%] in the placebo group). This study's findings indicate that treatment with afatinib after CRT did not improve DFS and was associated with more adverse events than placebo in patients with primary, unresected, clinically high- to intermediate-risk HNSCC. The use of adjuvant afatinib after CRT is not recommended. PB American Medical Association YR 2019 FD 2019-06-13 LK http://hdl.handle.net/10668/14105 UL http://hdl.handle.net/10668/14105 LA en NO Burtness B, Haddad R, Dinis J, Trigo J, Yokota T, de Souza Viana L, et al. Afatinib vs Placebo as Adjuvant Therapy After Chemoradiotherapy in Squamous Cell Carcinoma of the Head and Neck: A Randomized Clinical Trial. JAMA Oncol. 2019 Aug 1;5(8):1170-1180 DS RISalud RD Apr 6, 2025