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Risk of oral cancer in patients with oral lichen planus (a rash that can affect the inside of the mouth)

Malignant transformation in subjects with oral lichen planus (OLP): a 33-year cohort study in Northern Italy.

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN47966874
Enrollment
3000
Registered
2021-09-28
Start date
1988-01-01
Completion date
Unknown
Last updated
2022-01-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Oral lichen planus Oral Health Lichen planus

Interventions

This study will involve the review of participants charts with OLP diagnosed between January 1988 and December 2020 at one hospital in Northern Italy.

Sponsors

University of Turin
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Conclusive diagnosis of OLP based on the following criteria: 1. Clinical confirmation with the presence of characteristic bilateral clinical signs [papular and/or reticular lesions (Wickham striae) alone or in association with atrophic or erosive lesions], not related to oral amalgam restorations; 2. Histological confirmation, through incisional biopsy, demonstrating the following microscopic characteristic: 2.1. Presence of a well-defined band-like zone of cellular infiltration that is confined to the superficial part of the connective tissue, consisting mainly of lymphocytes 2.2. Signs of “liquefaction degeneration” in the basal cell layer 2.3. Lack of epithelial dysplasia

Exclusion criteria

Exclusion criteria: 1. Unable or unwilling to provide informed consent 2. Significant psychiatric or cognitive impairment

Design outcomes

Primary

MeasureTime frame
Percentage of the histopathological diagnosis of oral cancer in OLP patients measured using patient records at a single time point

Secondary

MeasureTime frame
Measured using patient records at a single time point: 1. The tumour site 2. T classification and neck nodes association 3. Treatment modalities 4. Outcome and survival rate

Countries

Italy

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026