Short-course radiation therapy for oropharynx cancer

Stereotactic Boost and SHOrt-course Radiation Therapy for HPV-associated OroPharynx Cancer Trial: A Randomized Multicentric Phase III Trial

Phase 3 Interventional Centre hospitalier de l'Université de Montréal (CHUM) · NCT04178174

This study is testing a shorter and more targeted radiation treatment for people with HPV-related throat cancer to see if it can reduce side effects while still being effective.

Quick facts

PhasePhase 3
Study typeInterventional
Enrollment360 (estimated)
Ages18 Years and up
SexAll
SponsorCentre hospitalier de l'Université de Montréal (CHUM) Academic / other
Drugs / interventionschemotherapy, radiation
Locations2 sites (London, Ontario and 1 other locations)
Trial IDNCT04178174 on ClinicalTrials.gov

What this trial studies

This clinical trial compares the outcomes of a short-course chemoradiation approach using stereotactic boost to the tumor and de-escalated chemoradiation to the neck against the standard 7-week chemoradiation regimen for patients with HPV-associated oropharynx cancer. The study aims to reduce treatment duration and associated toxicities while maintaining efficacy. By utilizing stereotactic ablative radiotherapy (SABR), the trial seeks to deliver precise radiation doses, minimizing exposure to surrounding healthy tissues. The goal is to improve patient quality of life and treatment outcomes in this specific cancer population.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older with biopsy-proven HPV-positive squamous cell carcinoma of the oropharynx, staged T1-3, N1 M0.

Not a fit: Patients with advanced clinical N3 classification or previous head and neck irradiation may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to reduced treatment duration and lower toxicity for patients with oropharynx cancer.

How similar studies have performed: Previous studies have shown promising results with similar de-escalation strategies in HPV-positive oropharynx cancer, indicating potential for success.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥18 years
* Ability to provide written informed consent.
* Eastern Cooperative Oncology Group (ECOG) performance status 0-2.
* Biopsy proven diagnosis of squamous cell carcinoma of the oropharynx.
* Positive for HPV by p16 immunohistochemistry (IHC) or HPV in-situ hybridization (ISH)
* Clinical stage T1-3, N1 M0 (Stage I-II) as per AJCC 8th edition.
* Primary tumor \< 30 cc
* Planned for curative chemoradiation
* For females of child-bearing age, a negative pregnancy test

Exclusion Criteria:

* Clinical N3 classification, as per AJCC 8th edition
* Clinically overt extranodal extension (ENE). As per AJCC 8th edition, clinically overt ENE is defined as invasion of the skin, infiltration of musculature/fixation to adjacent structures on clinical examination, cranial nerve, brachial plexus, sympathetic trunk or phrenic nerve invasion with dysfunction).
* Previous irradiation of the head and neck region
* Previous surgery of the HNC region (except for incisional or excisional biopsies)
* Pregnancy or breastfeeding
* Connective tissue disease
* Any medical condition that could, in the opinion of the investigator, prevent follow-up after radiotherapy.
* Non-Cisplatin concurrent chemotherapy
* Prior induction chemotherapy

Where this trial is running

London, Ontario 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.
Conditions Head and Neck CancerOropharynx CancerHuman Papilloma Virushead and neck canderOropharynx cancerHuman papilloma virusRadiotherapyStereotactic body radiotherapy
Last reviewed 2026-06-13 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.