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.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 636 (estimated) |
| Sponsor | University of British Columbia Academic / other |
| Drugs / interventions | radiation |
| Locations | 1 site (Vancouver, British Columbia) |
| Status | Recruiting |
| Started | July 8, 2026 |
| Main results expected | January 2032 |
| Study ends | September 2032 |
| Registry record updated | September 8, 2026 |
| Trial ID | NCT07090070 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
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Vancouver General Hospital
Vancouver, British Columbia, Canada Recruiting
Study contacts
- Study coordinator: Eitan Prisman
- Email: prisman.eitan@vch.ca
- Phone: 6048754126
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.