General principles for treatment selection Jeffrey Myers MD PhD
General principles for treatment selection Site/subsite Stage Histology Biomarkers
Site
Tonsil Base of tongue Pharyngeal wall Soft palate Subsites
Histology –Grade Differentiation Status Ploidy –Other Findings Perineural Invasion Extracapsular spread Margin
Biomarkers HPV p16 EGFR Genomic/Proteomic Profiles
Molecular Classification Identifies a Subset of Human Papillomavirus– Associated Oropharyngeal Cancers With Favorable Prognosis Journal of Clinical Oncology, Vol 24, No 5 (February 10), 2006: pp
EGFR and SCCHN Treatment Outcomes L Milas & KK Ang J Clin Oncol AK El-Naggar, JJ Lee, L Mao J Clin Oncol KK Ang & L Milas Cancer Res. 2002
Stage T- Stage –Tx –Tis –T 1-2 –T 3-4 N-Stage –N0 –N1 –>N1 –ECS Overall Stage Other Considerations –Depth of Invasion –Growth Pattern
Myers,. Cancer 2002; 92(12):3030
Greenberg. Cancer 2003;97:1464.
Overall Stage and Treatment Selection: Cisplatin and Fluorouracil Alone or with Docetaxel in Head and Neck Cancer N Engl J Med Oct 25;357(17):
Treatment Options Surgery Radiation Therapy Systemic Therapy Chemoradiotherapy –Induction –Concurrent –Induction followed by Concurrent –Adjuvant Targeted Molecular Therapy + Radiotherapy
Surgery-Primary/Neck Staging Surgery Debulking Surgery Definitive Surgery Open Surgery –Transoral Microsurgery –Robotic surgery Planned Surgery after non-surgical Therapy Salvage Surgery
Radiation Therapy –Particles Electrons Neutrons Protons –Fields -Parallel Opposing -IMRT -Stereotactic Radiosurgery –Fractionation Conventional Hyperfractionation Concomitant Boost Hypofractionation
Systemic Therapy: Chemotherapy/Biologic Therapy Chemoprevention Induction Concomitant Adjuvant
Summary Site, Stage, and Histology are our main guides for selecting therapy More Level I evidence is needed to guide the use of biomarkers in impacting treatment choices The menu of treatment options is large and individualized treatment decisions should be made by experienced multi-disciplinary teams keeping oncologic and quality of life issues in mind Where possible it is best to use the fewest modalities needed to effect a cure