Overview

The purpose of this study is to find out if lower doses of radiation may help reduce the side effects of radiation therapy in combination with standard-of-care chemotherapy in people with HPV-positive throat cancer. The chemotherapy drugs used in this study include cisplatin, carboplatin, and 5-fluorouracil (5- FU), paclitaxel and abraxane- (Albumin-bound Paclitaxel).

Eligibility

Inclusion Criteria:

• Pathologically (histologically or cytologically) proven diagnosis of HPV associated squamous cell carcinoma of the oropharynx (tonsil, base of tongue, or oropharyngeal walls) from biopsy, surgical resection or excisional biopsy regardless of margin status.
  1. Squamous cell carcinoma of the neck of unknown primary is allowed with excision biopsy of a lymph node (or core biopsy) or consent from the PI or co-PI
  2. Patient must have excisional biopsy or core biopsy done in order to be on protocol
• Subjects must have clinically or radiographically evident measurable gross disease at

  either the primary tumor site or nodal stations.

• Oropharyngeal Carcinoma (AJCC, 7th ed.) without evidence of distant metastasis based on FDG PET/CT.
• CT or MRI of the neck with and without contrast Note: A CT scan of neck and/or a PET/CT performed for the purposes of radiation planning may serve as planning tools.
• ECOG Performance Status of 0-2 or KPS ≥ 50
• Age ≥ 18 Patients over 70yrs will be able to enroll in Cohort B only).
• Adequate hematologic function within 30 days prior to registration, defined as

  follows

  1. White Blood Count (WBC) ≥ 2 K/mcL
  2. Absolute neutrophil count (ANC) ≥ 1,000 cells/mm3
  3. Platelets ≥ 100,000 cells/mm3
  4. Hemoglobin ≥ 8.0 g/dl; Note: The use of transfusion or other intervention to achieve Hgb ≥ 8.0 g/dl is acceptable

• Adequate renal function within 30 days prior to registration, defined as follows:
  1. Serum creatinine < 1.5 mg/dl or creatinine clearance (CC) ≥ 50 ml/min determined by 24-hour collection or estimated by Cockcroft-Gault formula: CCr male = [(140 - age) x (wt in kg)] [(Serum Cr mg/dl) x (72)] CCr female = 0.85 x (CrCl male)

        Note: Patients who cannot tolerate cisplatin or carboplatin/5FU based on clinical judgment
        will receive carboplatin and paclitaxel Paclitaxel can be substituted with Abraxane
        (Albumin-bound Paclitaxel).
          -  Adequate hepatic function within 30 days prior to registration, defined as follows:
               1. Bilirubin < 2 mg/dl
               2. AST or ALT < 3 x the upper limit of normal
        Note: Exceptions can be made with PI and/or Co-Pi approval for patients to enroll on trial
        with a higher Bilirubin level such as Gilbert's Syndrome.
        Note: Patients who cannot tolerate cisplatin or carboplatin/5FU based on clinical judgment
        will receive carboplatin and paclitaxel. Paclitaxel can be substituted with Abraxane
        (Albumin-bound Paclitaxel).
          -  Negative serum pregnancy test within 14 days prior to registration for women of
             childbearing potential
          -  The subject must provide study-specific informed consent prior to study entry
          -  Subject able to undergo MRI scans except for major medical contraindications like
             presence of a pacemaker or approved by the PI or the CO-PI that the subject does not
             need to undergo MRI scans
        Exclusion Criteria:
          -  Subjects with prior head and neck radiation therapy
          -  Subjects with simultaneous primary cancers outside of the oropharynx
             a. Note: Exceptions can be made for patients with simultaneous primaries outside the
             oropharynx if determined by the PI/Co-PI the patient can proceed with protocol
             activities.
          -  Prior invasive malignancy (except non-melanomatous skin cancer) unless disease free
             for 3 years or if cure rate from treatment at 5 years to be 90% or greater
          -  Prior systemic chemotherapy for the study cancer; note that prior chemotherapy for a
             different cancer is allowable
          -  Severe, active co-morbidity defined as follows: (exceptions can be made if approved by
             the PI and/or co-PI)
               1. Unstable angina and/or congestive heart failure requiring hospitalization within
                  the last 6 months
               2. Transmural myocardial infarction within the last 6 months
               3. Acute bacterial or fungal infection requiring intravenous antibiotics at the time
                  of registration
               4. Chronic Obstructive Pulmonary Disease exacerbation or other respiratory illness
                  requiring hospitalization or precluding study therapy within 30 days of
                  registration
               5. Hepatic Insufficiency resulting in clinical jaundice and/or coagulation defects