Protocol Summary

Protocol No.: OCR15653

Sponsor Protocol No.: LCCC1612

Study Title
LCCC 1612: P53 mutational status and circulating free HPV DNA for the management of HPV-associated Oropharyngeal Squamous Cell Cancers

Principal Investigator(s)
Amdur, Robert

The proposed study is a follow-up study to LCCC 1120 and 1413. The investigators have shown that de-intensification is efficacious in these two phase II studies. A major question is whether the investigators can de-intensify in patients with HPV-associated oropharyngeal cancer who have smoking histories. The investigators' hypothesis is that genomic profiling of patients' tumors (specifically for p53 mutations) will help in triaging patients to de-intensification versus standard of care. Patients with HPV-associated OPSCC will be enrolled regardless of smoking history and p53 mutational status will be assessed in patients with a smoking history. The investigators will use the same de-intensification chemoradiotherapy regimen already evaluated in LCCC 1120 and 1413 in patients with HPV-associated OPSCC who have a minimal smoking history and in patients with a smoking history but with wild-type p53. Patients with a smoking history who have mutated p53 will not receive de-intensified chemoradiotherapy, but instead will receive standard doses. The hypothesis is that by using genomics in the patients with a significant smoking history, the investigators will better select those who can be safely de-intensified. Circulating free HPV DNA (cf-HPV-DNA) will also be prospectively assessed from blood samples.

Phase: Phase II

Age Group: Adult

Scope: National

Radiation: Intensity Modulated Radiotherapy (IMRT) - deintensified or standard dose

Drug: Cisplatin (or alternative) - deintensified or standard dose

Assessment for surgical evaluation: Decision for surgical evaluation will be based on the results of the PET/CT and clinical exam 10-16 weeks after CRT. Patients with a positive PET/CT scan will undergo surgical evaluation at the discretion of the surgeon. Patients with a negative PET/CT scan will be observed.

Detailed Eligibility
1. Ages 18 years old and older
2. T0-3, N0 to N2c, M0 squamous cell carcinoma of the oropharynx
3. Biopsy proven squamous cell carcinoma that is HPV and/or p16 positive
4. Radiologic confirmation of the absence of hematogenous metastasis within 12 weeks prior to treatment
5. ECOG Performance Status 0-1
6. CBC/differential obtained within 8 weeks prior to treatment, with adequate bone marrow function defined as follows: Platelets ≥ 100,000 cells/mm3; Hemoglobin >= 8.0 g/dl
7. Adequate renal and hepatic function within 4 weeks prior to treatment, defined as follows: Serum creatinine 8. Negative pregnancy test within 2 weeks prior to treatment for women of childbearing potential
9. Women of childbearing potential and male participants who are sexually active must practice adequate contraception during treatment and for 6 weeks following treatment.
10. Patients must be deemed able to comply with the treatment plan and follow-up schedule.
11. Patients must provide study specific informed consent prior to study entry

1. Prior history of radiation therapy to the head and neck
2. Prior history of head and neck cancer.
3. Unresectable disease (e.g. immobile node on physical exam, nodal disease that radiographically involves the carotid arteries, nerves)
4. Currently taking Disease Modifying Rheumatoid Drugs (DMRDs)
5. Severe, active co-morbidity, defined as follows: Unstable angina and/or congestive heart failure requiring hospitalization within the last 6 months; Transmural myocardial infarction within the last 6 months; Acute bacterial or fungal infection requiring intravenous antibiotics at the time of registration; Chronic Obstructive Pulmonary Disease exacerbation or other respiratory illness requiring hospitalization or precluding study therapy at the time of registration; Hepatic insufficiency resulting in clinical jaundice and/or coagulation defects (Note, however, coagulation parameters are not required for entry into this protocol); Pre-existing >= grade 2 neuropathy; Prior organ transplant; Systemic lupus; Psoriatic arthritis
6. Known HIV positive.

Applicable Disease Sites

Head & Neck Cancer

Participating Institutions
UF Gainesville : John Lybarger

John Lybarger, MPH, CCRC
Phone: +1 352-265-0680 ext. 87829

More Information:
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