Clinical trial Recruiting at 1 site Interventional Ages 18 and up

How to treat p53-mutant oral precancers and early oral cancer

Official title: Evaluating Treatment Strategies for p53 Mutant Oral Epithelial Dysplasia and SCC Study

Run by University of British Columbia · NCT07090070 · Data updated 2026-11-12

This study tests different treatment approaches for adults with p53-abnormal oral precancers or very early oral cancer to see which method best prevents progression and improves outcomes.

More Oral Squamous Cell Carcinoma trials

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment636 (estimated)
SponsorUniversity of British Columbia
Academic / other
Drugs / interventionsradiation
Locations1 site (Vancouver, British Columbia)
StatusRecruiting
StartedJuly 8, 2026
Main results expectedJanuary 2032
Study endsSeptember 2032
Registry record updatedSeptember 8, 2026
Trial IDNCT07090070 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults 18 years and older with p53-abnormal oral lesions, including mild/moderate dysplasia, severe dysplasia/CIS, or T1 OSCC with DOI <4 mm and no clinical nodal disease.

Probably not a fit

Participants with lesions not driven by p53 abnormality or those unlikely to benefit from the specific margin strategies may not see improved outcomes.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This interventional study enrolls adults with p53-abnormal oral epithelial lesions, ranging from mild/moderate dysplasia to early squamous cell carcinoma (T1, DOI <4 mm) without nodal involvement. Participants are assigned to one of three cohorts with varying surgical and margin strategies, including excision alone, excision with neck surgery, and combination approaches with close follow-up. The trial aims to determine the optimal treatment at each diagnostic stage to reduce progression to invasive cancer and improve disease-free and overall survival. Eligibility requires no prior head and neck radiation, no lesions >3 cm, and specific p53 abnormal IHC patterns. The study is led by the University of British Columbia with site at Vancouver General Hospital in Canada.

Why it matters

Potential benefit: If successful, patients may receive more effective, tailored treatments that prevent cancer progression and improve survival.

How similar studies have gone: Prior work in organ-specific cancer prevention and margin management supports the potential for improved control with tailored surgical approaches, though this exact p53-focused strategy is relatively novel in this context.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adults age 18 or over
* No history of head and neck radiation
* p53-abnormal IHC patterns (surrogate marker for TP53 mutation)

Cohort 1:

* Biopsy-confirmed mild/moderate dysplasia

Cohort 2:

* Biopsy-confirmed severe dysplasia or CIS

Cohort 3:

* T1 SCC with depth of Invasion (DOI) \<4mm
* Clinically and radiologically node-negative (confirmed by contrast-enhanced CT)

Exclusion Criteria:

* Immunocompromised status
* Lesions greater than 3 cm
* Presence of Proliferative Verrucous Leukoplakia

Cohort 1:

* Had prior treatment for oral premalignant lesions

Cohort 2:

* Presence of invasive SCC on initial biopsy

Cohort 3:

* Positive nodes on contrast-enhanced CT
* DOI \>= 4mm

Where it's running

  • Vancouver General Hospital
    Vancouver, British Columbia, Canada
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.