| Oral Cancer Screening and Education in Hong Kong (NCT04487938) | The University of Hong Kong | 2021-08-01 |
| Diagnostic Accuracy of Salivary Gamma-synuclein in Oral Malignant and Premalignant Lesions (NCT04732741) | Cairo University | 2021-03-10 |
| Saliva and Plasma Exosomes for Oral Leukoplakia Malignant Transformation Diagnosis and Oral Cancer Prognosis Monitoring (NCT06469892) | Beijing Stomatological Hospital, Capital Medical University | 2020-06-13 |
| Intra and Extra Oral Inspection of Oral Mucosa (NCT04079491) | Dalarna County Council, Sweden | 2020-02-01 |
| Evaluation of Effect of Topical Melatonin in Treatment of Oral Leukoplakia (NCT04251845) | Postgraduate Institute of Dental Sciences Rohtak | 2020-02-01 |
| Prediction of Malignant Transformation of Oral Leukoplakia Using a MAGE-A-based Immunoscore (NCT03975322) | University of Erlangen-Nürnberg Medical School | 2019-12-01 |
| Diagnostic Accuracy of Salivary DNA Integrity Index in Oral Malignant and Premalignant Lesions (NCT03682562) | Cairo University | 2019-09-15 |
| Candida Associated Cytokines in Oral Leukoplakia (NCT04712929) | All India Institute of Medical Sciences | 2018-11-01 |
| Oral Epithelial Dysplasia Informational Needs Questionnaire (NCT04153266) | University College, London | 2018-10-31 |
| Metformin Hydrochloride in Preventing Oral Cancer in Patients With an Oral Premalignant Lesion (NCT02581137) | National Cancer Institute (NCI) | 2016-06-10 |
| Comparison or Rose Bengal and Toluidine Blue Staining for Lesion Detection Efficacy (NCT03031899) | The Oxford Dental College, Hospital and Research Center, Bangalore, India | 2015-03-01 |
| Pioglitazone for Oral Premalignant Lesions (NCT00951379) | National Cancer Institute (NCI) | 2010-02-01 |
| Least Invasive Nonlinear Light Microscopy (NCT00767442) | National Taiwan University Hospital | 2008-12-01 |
| Photodynamic Therapy Using Aminolevulinic Acid in Treating Patients With Oral Leukoplakia (NCT00571558) | National Cancer Institute (NCI) | 2008-03-01 |
| Rosiglitazone Maleate in Treating Patients With Oral Leukoplakia (NCT00369174) | National Cancer Institute (NCI) | 2006-06-01 |
| Photodynamic Therapy for Oral Leukoplakia and Erythroleukoplakia (NCT00155337) | National Taiwan University Hospital | 2004-08-01 |
| A Phase II Trial to Assess the Effects of Green Tea in Oral Leukoplakia (NCT00176566) | University of Medicine and Dentistry of New Jersey | 2003-09-01 |
| Pioglitazone Hydrochloride in Preventing Head and Neck Cancer in Patients With Oral Leukoplakia (NCT00099021) | National Cancer Institute (NCI) | 2003-06-01 |
| Bowman-Birk Inhibitor Concentrate in Preventing Cancer in Patients With Oral Leukoplakia (NCT00330382) | National Cancer Institute (NCI) | 1999-01-01 |
| Biomarkers for Oral Cancer (NCT00341497) | National Cancer Institute (NCI) | 1996-08-28 |