RAdiotherapy With FDG-PET Guided Dose-PAINTing for Primary Head and Neck
RAdiotherapy With FDG-PET Guided Dose-PAINTing for Primary Head and Neck
Dose-painting may increase the chance of cure at minimised radiation-induced toxicity in volumetric-arc radiotherapy (VMAT) for head and neck cancer. This trial (RADPAINT) investigates the safety of FDG-PET guided radiotherapy using VMAT dose-painting by contours for patients with head and neck cancer of poor prognosis.
In this study, radiotherapy is planned using 18F-FDG PET/CT (18F-2-fluoro-2-deoxy-D-glucose fluorodeoxyglucose positron emission tomography) making one experimental "dose-painting by contours" SIB (simultaneous integrated boost) plan with a maximum point dose of 83 Gy. The participants will be given 73 Gy and 78 Gy minimum doses to two GTVs (gross tumor volumes inside the conventional GTV (68 Gy). GTV_73Gy and GTV_78Gy are determined from the SUV (standardized uptake values) from the 18F-FDG PET/CT according to the formula proposed by the Ghent group (Van der Straeten et al, R&O -06). It is expected to keep the level of normal tissue side-effects within or slightly above the level of conventional radiotherapy (i.e. maximum dose of 68 Gy).
In addition to the routine follow-up, the participants will be examined with 18F-FDG PET/CT (3 months after treatment and toxicity scoring at 6 weeks, 3 months, 6 months, 1 year, 1.5 years and 3 years after radiotherapy (in addition to the routine follow-up).
Inclusion Criteria:
Histologically or cytologically verified invasive squamous cell carcinoma of the head and neck region; Sinonasal, oral cavity, hypopharynx cancer, larynx cancer, HPV-unrelated (p16 negative and/or HPV DNA negative) oropharyngeal cancer and TNM (primary tumor, regional nodes, metastasis) stage T4 any N M0 HPV-related (p16 positive and/or HPV DNA positive) oropharyngeal cancer.
Patients planned for standard curative treatment (radical radiotherapy with or without concomitant chemotherapy, with or without nimorazole hypoxic cell radiosensitizer) Planned treatment at the Oslo University Hospital Age > 18 years WHO (World Health Organization) performance status 0-2
Exclusion Criteria:
TNM (primary tumor, regional nodes, metastasis) stage cT1 cN0-N1 cM0 Glottic cancer cT1-T2 cN0 cM0 HPV-related oropharyngeal carcinoma cT1-T3 (any N) Cancer in the soft palate Diabetes mellitus Use of anticoagulant (or platelet inhibitor) Active smoking and/or alcohol abuse