Major De-escalation to 30 Gy for Select Human Papillomavirus Associated Oropharyngeal Carcinoma

Summary

The purpose of this study is to demonstrate that participants with HPV positive and hypoxia negative T1-2, N1-2c (AJCC, 7th ed.) oropharyngeal squamous cell carcinoma receiving a major de-escalated radiation therapy with 2 cycles of standard chemotherapy is not inferior to comparable subjects treated with the current standard chemoradiation.

Accrual for Cohort A has been completed.

Cohort B is active and continues to enroll participants where surgery is optional and proton is allowed.

Conditions

• HPV-Associated Oropharyngeal Squamous Cell Carcinoma
• Squamous Cell Carcinoma of the Neck

Interventions

DIAGNOSTIC_TEST

F-FMISO PET/CT Scan

All subjects on Cohort A and the first 100 subjects accrued to Cohort B will undergo a pre-treatment F-FMISO scan PET/CT scan pretreatment. For both Cohort A and Cohort B, FMISO scan will be repeated between the 5th-10th RT day if pre-treatment scan is hypoxic. If the repeat 18F-FMISOscan PET/CT demonstrates hypoxia, the subject will receive 70Gy concurrent with 2 cycles of chemotherapy. All subjects accrued onto Cohort B after 100 accruals will undergo only one 18F-FMISO scan done 5-10 treatment days after start of radiation therapy.

RADIATION

30 Gy over 3 weeks

Treatment will be delivered as one fraction per day on a standard 5 day per week schedule (excluding weekends and holidays), total of 30 Gy over 3 weeks at 2 Gy per fraction each day. The gross nodes, the primary/postoperative bed if applicable, all subclinical areas at risk for disease will receive the same dose at 30Gy.

DRUG

Cisplatin

Cycle 1 (week 1): At the start of week 1 of IMRT, subjects will receive cisplatin 100 mg/m2 intravenously. They may be given for 2 consecutive days (50 mg/m2 each day for a total dose 100 mg/m2), typically on days 1 and 2, or as a single dose, typically on day 1.

DRUG

Carboplatin

If cisplatin cannot be given at 100 mg/m2 for either cycle 1 or cycle 2, the investigator may use a regimen with carboplatin and 5-Fluorouracil in its place. Carboplatin will be given at a dose of AUC 1.25 intravenously daily x 4 days starting on day 1 of the cycle (total dose of AUC 5). Cycle 2 (Week 4): After the three weeks of radiation at week 4 when the subject no longer is receiving radiation therapy, subjects will receive cisplatin 100 mg/m2 intravenously. The may be given for 2 consecutive days (50 mg/m2 each day for a total dose 100 mg/m2), typically on days 22 and 23, or as a single dose, typically on day 22.

DRUG

5Fluorouracil

If cisplatin cannot be given at 100 mg/m2 for either cycle 1 or cycle 2, the investigator may use a regimen with carboplatin and 5-Fluorouracil in its place. 5-Fluorouracil will be given at a dose of 600 mg/m2 intravenous infusion over 24 hours daily x 4 days (total dose of 2400 mg/m2 intravenous infusion over 96 hours).

RADIATION

Proton Therapy

Proton beam using pencil beam delivery either with the Varian or IBA delivery systems will be allowed for Cohort B. Proton beam therapy will be given at the New York Proton Center in New York City, where MSKCC has a well-established business associate agreement and cooperative research agreement with, respectively. If treatment at NYPC is not feasible, patients may be referred to ProCure in Somerset, NJ.

Sponsors & Collaborators

• Memorial Sloan Kettering Cancer Center

  lead OTHER

Principal Investigators

• Nancy Lee, MD · Memorial Sloan Kettering Cancer Center

Study Design

Allocation

NON_RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Model

SINGLE_GROUP

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2017-10-16

Primary Completion

2026-10-31

Completion

2026-10-31

FDA Drug

Yes

FDA Device

Yes

Countries

• United States

Study Locations