Phase II Study Comparing Radiation Therapy With or Without Cisplatin After Surgery for Advanced Squamous Cell Carcinoma of the Head and Neck

What this Trial Is About

Researchers are evaluating how well radiation therapy with or without the chemotherapy drug cisplatin works in treating patients who have stage III-IVA squamous cell carcinoma of the head and neck after surgery. This phase II trial aims to understand if adding cisplatin to radiation therapy improves disease-free survival and to explore the role of p53 mutations as a biomarker for treatment benefit. The study also assesses the safety and side effects of these treatments and looks for other genetic changes that might guide new therapies. Participants are randomly assigned to one of two groups. One group receives intensity-modulated radiation therapy IMRT once daily, five days a week for six weeks. The other group receives the same radiation schedule plus weekly intravenous cisplatin for six weeks. After treatment, participants are followed up every six months for three years and then yearly for seven years to monitor outcomes. During the study, patients will have assessments including surgical tumor tissue analysis for p53 mutation, imaging scans to check for cancer spread, and blood tests to monitor health and organ function. Researchers will track disease recurrence, new tumors, or death for up to 10 years. Side effects will be recorded during treatment. The total study participation includes treatment over six weeks followed by long-term follow-up visits lasting up to 10 years.

Radiation Therapy With or Without Cisplatin in Treating Patients With Stage III-IVA Squamous Cell Carcinoma of the Head and Neck Who Have Undergone Surgery