| Topical Aminolevulinic Acid in Patients With Nonmelanoma Skin Cancer (NCT00663910) | The Cleveland Clinic | 2008-03-01 |
| Photodynamic Therapy Using Aminolevulinic Acid in Treating Patients With Skin Cancer (NCT00747903) | Laser and Skin Surgery Center of New York | 2008-02-01 |
| Studying a Tumor Marker for Testicular Cancer, Skin Cancer, Small Intestine Cancer, and Pancreatic Cancer (NCT00899132) | Case Comprehensive Cancer Center | 2007-02-01 |
| Bioelectric Field Imaging in Diagnosing Melanoma and Other Skin Cancers in Patients With Skin Lesions (NCT00391300) | Eastern Virginia Medical School | 2006-10-01 |
| Gefitinib and PEG-Interferon Alfa-2a in Treating Patients With Unresectable or Metastatic Skin Cancer (NCT00423397) | University of California, San Diego | 2006-09-01 |
| LMB-2 Immunotoxin and Vaccine Therapy in Treating Patients With Metastatic Melanoma That Cannot Be Removed By Surgery (NCT00295958) | National Institutes of Health Clinical Center (CC) | 2005-12-01 |
| Photodynamic Therapy Using Silicon Phthalocyanine 4 in Treating Patients With Actinic Keratosis, Bowen's Disease, Skin Cancer, or Stage I or Stage II Mycosis Fungoides (NCT00103246) | Case Comprehensive Cancer Center | 2004-09-01 |
| Computer-Based Continuing Education for Doctors in Examination and Counseling of Patients on Skin Cancer or Weight Control (NCT00295906) | Rhode Island Hospital | 2004-06-01 |
| Effect of Solar-Simulated Ultraviolet Radiation on Gene Expression in Unprotected and Sunscreen-Protected Skin of Healthy Adults With Fitzpatrick Skin Type II (NCT00099112) | National Cancer Institute (NCI) | 2004-02-01 |
| Acitretin in Preventing Skin Cancer in Patients at High Risk for Skin Cancer (NCT00644384) | Mayo Clinic | 2003-02-01 |
| Topical Imiquimod Compared With Surgery in Treating Patients With Basal Cell Skin Cancer (NCT00066872) | Queen's Medical Center | 2002-10-01 |
| Photodynamic Therapy in Treating Patients With Skin Cancer or Solid Tumors Metastatic to the Skin (NCT00023790) | Case Comprehensive Cancer Center | 2001-08-01 |
| Eflornithine With or Without Triamcinolone in Preventing Nonmelanoma Skin Cancer in Patients With Actinic Keratosis (NCT00021294) | University of Arizona | 2001-05-01 |
| Celecoxib in Preventing Basal Cell Carcinoma in Patients With Basal Cell Nevus Syndrome (NCT00023621) | University of California, San Francisco | 2001-02-01 |
| SU5416 in Treating Patients With Advanced or Recurrent Cancer of the Head and Neck (NCT00006361) | Memorial Sloan Kettering Cancer Center | 2000-12-01 |
| Radiation Therapy in Treating Patients With Head and Neck Cancer (NCT00021125) | Medical Research Council | 2000-07-01 |
| Acitretin in Preventing Skin Cancers in Patients With Previously Treated Skin Cancers Who Have Undergone Organ Transplantation (NCT00003611) | Alliance for Clinical Trials in Oncology | 2000-05-01 |
| Photodynamic Therapy in Treating Patients With Basal Cell Skin Cancer (NCT00017485) | Roswell Park Cancer Institute | 2000-01-01 |
| Green Tea Extract in Treating Patients With Actinic Keratosis (NCT00005097) | Frank Meyskens | 1999-08-01 |
| Photodynamic Therapy in Treating Patients With Skin Cancer (NCT00002975) | Roswell Park Cancer Institute | 1997-02-01 |
| Photodynamic Therapy in Treating Patients With Skin Cancer (NCT00002963) | Roswell Park Cancer Institute | 1993-11-01 |
| Isotretinoin Plus Interferon in Treating Patients With Recurrent Cancer (NCT00002506) | Hoag Memorial Hospital Presbyterian | 1992-08-01 |
| Isotretinoin in Preventing Skin Cancer (NCT00025012) | National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) | 1991-06-01 |
| Low Fat Diet to Prevent Disease Progression in Patients With Skin Cancer (NCT00003097) | Baylor College of Medicine | 1989-04-01 |
| Eflornithine to Prevent Skin Cancer in Patients With Previously Treated Early Stage Skin Cancer (NCT00005884) | University of Wisconsin, Madison | |
| Celecoxib in Preventing Skin Cancer (NCT00025051) | National Cancer Institute (NCI) | |
| Topical Sirolimus in Patients With Basal Cell Nevus Syndrome and in Healthy Participants (NCT00433485) | Yale University | |