PRIMARY OBJECTIVES:
I. To assess feasibility of measuring serial quantitative circulating tumor deoxyribonucleic acid (DNA) (ctDNA) in patients undergoing induction therapy followed by response adaptive treatment for locoregionally advanced (LA) human papillomavirus (HPV) negative (-) head and neck squamous cell carcinoma (HNSCC).
II. To assess the correlation between ctDNA clearance and volumetric radiographic response following induction therapy in LA HPV(-) HNSCC.
SECONDARY OBJECTIVES:
I. Assess toxicity and tolerability in patients undergoing induction therapy followed by response adaptive treatment for LA HPV(-) HNSCC.
II. Assess progression free survival, overall survival, locoregional control, and distant control of HPV(-) LA HNSCC receiving treatment with induction chemotherapy followed by risk and response-stratified de-escalated therapy.
EXPLORATORY OBJECTIVES:
I. Assess correlation of serial plasma ctDNA during response-adaptive chemoradiotherapy and following treatment during surveillance with volumetric radiographic tumor burden.
II. Assess long-term/late toxicities including enteral tube dependence between standard dose and de-escalated chemoradiotherapy (CRT).
III. Evaluate quality of life and late toxicity in patients who receive dose-reduced chemoradiotherapy after a deep response to induction therapy.
IV. Correlate plasma ctDNA with sputum ctDNA in patients with LA HPV(-) HNSCC receiving treatment with induction therapy followed by response-adaptive treatment for HPV(-) HNSCC.
OUTLINE:
INDUCTION: Patients receive paclitaxel intravenously (IV) on days 1, 8, and 15 of each cycle, carboplatin IV on day 1 of each cycle, and cetuximab IV on days 1, 8, and 15 of each cycle. Treatment repeats every 21 days for up to 3 cycles in the absence of disease progression or unacceptable toxicity. Patients with oral cavity cancer and stable disease, partial response, or complete response after induction may undergo surgical resection. Patients undergo computed tomography (CT), magnetic resonance imaging (MRI), positron emission tomography (PET), and/or PET/CT at screening and during week 9 for response stratification. Patients also undergo collection of blood samples at screening and during induction and may undergo biopsy at screening.
RESPONSE STRATIFIED GROUPING: Patients with < 50% reduction in the sum of diameters of target lesions are assigned at the discretion of the treating physician to Arm I or Arm II. Patients with >= 50% reduction in the sum of diameters of target lesions are assigned at the discretion of the treating physician to Arm III or Arm IV. Patients with progressive disease are assigned to Arm V or Arm VI.
ARM I: Patients undergo standard fractionated image-guided radiation therapy (IGRT) once daily (QD) Monday through Friday for 7 weeks (or 6-6.5 weeks for patients with resected disease) and receive concurrent cisplatin IV over 1-2 hours once weekly (QW) for 7 weeks (or 6 weeks in patients with resected disease). Patients also undergo collection of blood samples during CRT and follow up and undergo CT, MRI, PET, and/or PET/CT during follow up.
ARM II: Patients undergo standard fractionated IGRT twice daily (BID) Monday through Friday every other week for 10 weeks. Patients receive paclitaxel IV over 60 minutes on day 1 of each cycle, fluorouracil (5-FU) IV over 120 hours (days 1-5), and hydroxyurea orally (PO) every 12 hours for 6 days (days 0-6). Cycles repeat every 14 days until the completion of standard fractionated IGRT (up to 5 cycles or 10 weeks). Patients also undergo collection of blood samples during CRT and follow up and undergo CT, MRI, PET, and/or PET/CT during follow up.
ARM III: Patients undergo de-escalated hyperfractionated IGRT QD Monday through Friday for 6.5 weeks (or 5-6 weeks in patients with resected disease) and receive concurrent cisplatin IV over 1-2 hours QW for 7 weeks (or 5-6 weeks in patients with resected disease). Patients also undergo collection of blood samples during CRT and follow up and undergo CT, MRI, PET, and/or PET/CT during follow up.
ARM IV: Patients undergo de-escalated hyperfractionated IGRT BID Monday through Friday every other week for 8-9 weeks. Patients receive paclitaxel IV over 60 minutes on day 1 of each cycle, 5-FU IV over 120 hours (days 1-5), and hydroxyurea PO every 12 hours for 6 days (days 0-6). Cycles repeat every 14 days until the completion of de-escalated hyperfractionated IGRT (up to 4.5 cycles or 8-9 weeks). Patients also undergo collection of blood samples during CRT and follow up and undergo CT, MRI, PET, and/or PET/CT during follow up.
ARM V: Patients undergo standard fractionated IGRT for 7 weeks and receive concurrent cisplatin IV over 1-2 hours QW for 7 weeks. Patients also undergo collection of blood samples during CRT and follow up and undergo CT, MRI, PET, and/or PET/CT during follow up.
ARM VI: Patients undergo standard fractionated IGRT BID every other week. Patients receive paclitaxel IV over 60 minutes on day 1 of each cycle, 5-FU IV over 120 hours (days 1-5), and hydroxyurea PO every 12 hours for 6 days (days 0-6). Cycles repeat every 14 days for up to 5 cycles. Patients also undergo collection of blood samples during CRT and follow up and undergo CT, MRI, PET, and/or PET/CT during follow up.
After completion of study treatment, patients are followed up in weeks 4 and 12, then every 3 months in year 1, every 6 months in years 2 and 3, and yearly in years 4 and 5.