The CCTG study chair for the HN.9 clinical trial Wednesday, November 21, 2018 A video interview with Dr. Anna Spreafico who is the CCTG study chair for the HN.9 clinical trial. https://youtu.be/0zfM1ghcwnM The HN.9 study is a randomized Phase II Study of Cisplatin plus Radiotherapy versus Durvalumab plus Radiotherapy followed by Adjuvant Durvalumab versus Durvalumab plus Radiotherapy followed by Adjuvant Tremelimumab and Durvalumab in Intermediate Risk HPV-Positive Locoregionally Advanced Oropharyngeal Squamous Cell Cancer (LA-OSCC). Primary: To estimate the efficacy (in terms of event-free survival) of 3 treatment Arms: (A) radiotherapy (RT) and cisplatin; (B) RT and durvalumab followed by adjuvant durvalumab; and (C) RT and durvalumab followed by adjuvant durvalumab and tremelimumab in patients with intermediate risk, HPV-positive, locally advanced oropharyngeal squamous cell carcinoma of the head and neck (LA-OSCC). Secondary: 1) To assess differences between arms in change in FACT-HN score from baseline to 36 months post-RT; 2) To estimate and describe the following in each of the 3 treatment arms: Locoregional control; Distant metastasis-free survival (DMFS); OS; Toxicity; Incidence of second cancer; Dysphagia; PRO-CTCAE Radiation related late toxicity; Cost effectiveness; Cost utility; and lost productivity. Tertiary: 1) Correlative Studies; 2) Event-free survival as defined by iRECIST.