About this trial
The goal of this clinical trial is to learn whether for intermediate-risk patients who have undergone Transoral Robotic Surgery for HPV/p16(+) oropharyngeal cancer and have minimal smoking history, whether these patients can be treated with a lower-than standard dose, with omission of the primary site in the oropharynx. The main questions it aims to answer are:
Does radiotherapy site and dose-de-escalation lead to similar outcomes compared to historical data on tumor control in patients who are treated with standard radiation doses and treatment fields?
Participants will:
Undergo treatment with a lower than standard radiation dose (50Gy in 25 fractions, with either Intensity Modulated Radiation Therapy (IMRT) or proton beam therapy) and to a smaller than standard radiation field (to the neck only, excluding the original site of tumor in the oropharynx)
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Patients must be ≥ 18 years of age on the day of signing informed consent.
Patients must have a diagnosis of p16+ and/or HPV+ squamous cell carcinoma of the oropharynx (including base of tongue, glossotonsilar sulcus, tonsil, soft palate, vallecula, and/or posterior oropharyngeal wall).
pathologic stage T1-2 N1 M0 (AJCC 8th ed.) stage I or T3 N0-1 M0 stage II (AJCC 8th ed.) SCCA of the oropharynx, with ≤ 5 distinct nodes involved with tumor, ≤ 2mm ECE (extracapsular extension), ≥ 2mm surgical margins at primary site.
Karnofsky Performance Status (KPS) ≥ 60 within 8 weeks prior to registration.
Disqualifiers
Perineural invasion at primary site
Lymphovascular space invasion at primary site
Level 4 nodal involvement (even if resected)
Retropharyngeal nodal involvement (even if resected)
Trial design
Single group
Treatments tested in this trial
Radiation Therapy
RadiationDe-escalation of Adjuvant Radiotherapy
Treatment groups
Trial outcomes
Primary outcomes
Progression Free Survival (PFS)
2 year progression free survival, as determined by standard of care physical examination and standard of care surveillance imaging.
Secondary outcomes
Quality of Life (QOL)
Quality of Life will be measured by validated questionnaires relating to Patient Related Outcomes (EORTC QLQ-C30 (version 3). Completed at baseline (at radiotherapy consult), and then approximately at 1-2 weeks, 3 months, 6, 12, 18 and 24 months after completion of RT. A high scale score represents a higher response level.
Local Control Rate
Local Control as determined by standard of care physical examination and standard of care surveillance imaging.
Regional Control Rate
Regional Control as determined by standard of care physical examination and standard of care surveillance imaging
Distant Metastasis-Free Survival (DMFS)
Distant Metastasis-Free Survival as determined by standard of care physical examination and standard of care surveillance imaging.
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
Georgetown University
Lead sponsor
MedStar Georgetown University Hospital
Collaborator