Reducing radiation doses for HPV-related throat cancer

Radiotherapy Dose De-escalation in HPV-Associated Cancers of the Oropharynx Using Metabolic Signature From Interim 18FDG-PET/CT

NA · Duke University · NCT04667585

This study is testing if using special imaging during radiation therapy can help find patients with HPV-related throat cancer who can safely receive lower radiation doses to reduce side effects while still getting effective treatment.

Quick facts

PhaseNA
Study typeInterventional
Enrollment120 (estimated)
Ages18 Years and up
SexAll
SponsorDuke University (other)
Drugs / interventionschemotherapy, radiation
Locations2 sites (Durham, North Carolina and 1 other locations)
Trial IDNCT04667585 on ClinicalTrials.gov

What this trial studies

This study aims to utilize intra-treatment 18FDG-PET/CT imaging during radiation therapy for HPV-associated oropharyngeal cancer to identify patients who may benefit from reduced radiation doses. By evaluating the clinical outcomes of patients receiving dose de-escalation, the study seeks to optimize treatment while minimizing side effects. The approach focuses on patients with favorable responses to treatment, allowing for a more personalized therapy plan. This prospective evaluation will help determine the safety and efficacy of lower radiation doses in this patient population.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older with HPV-positive oropharyngeal squamous cell carcinoma who are eligible for concurrent chemotherapy.

Not a fit: Patients with prior head and neck radiation therapy or those with distant metastatic disease may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to safer treatment options with fewer side effects for patients with HPV-related oropharyngeal cancer.

How similar studies have performed: Other studies have shown promise in dose de-escalation strategies for HPV-related cancers, indicating potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Histologic documentation of squamous cell carcinoma of the oropharynx with p16-positive immunohistochemical staining and/or positive HPV in situ hybridization (ISH) and/or positive HPV PCR
* Stage I-III (AJCC 8th edition) with plan for concurrent chemotherapy per standard of care treatment
* Zubrod/ECOG score of 0-1
* Weight loss \<10% in the 3 months prior to diagnosis
* ≥ 18 years of age
* No prior chemotherapy for their current cancer diagnosis

Exclusion Criteria:

* Prior radiotherapy to the head and neck
* Medical contraindications to radiation therapy
* Absence of gross disease on imaging prior to beginning radiation therapy
* Distant metastatic disease
* Medical contraindication to PET/CT
* History of active cancer other than non-melanoma skin cancer within the last 5 years

Where this trial is running

Durham, North Carolina and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Oropharynx Cancer, PET-CT

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.