Time frame: Baseline, Triplet Combination Therapy Cycles 2, 4, 6 (cycle = 21 days) and optional Maintenance Therapy Cycles 1, 3, 5 and 7 (cycle = 21 days)
PSS-HNC is a clinician-rated instrument designed to measure speaking and eating disabilities of participants with head and neck cancer and consists of 3 subscales: Normalcy of Diet (NOD) subscale measures the ability of the participants to eat a normal diet, scale ranged from 0 (non-oral feeding) to 100 (unrestricted diet); Understandability of Speech (UOS)subscale measured the degree a clinician was able to understand the participant's speech, subscale ranged from 0 (never understandable) to 100 (always understandable); Eating in Public (EIP) subscale, rating based on clinician question to the participant to report who he/she eats with and in what setting, subscale ranged from 0 (always eats alone) to 100 (no restriction of place, food, or companion). Change from baseline: negative value represents a decrease in function and a positive value represents an increase in function.