Imaging Techniques to Monitor Photosensitizer and sO2 Levels During Photodynamic Therapy of Actinic...
Actinic KeratosesThe purpose of the study is to test a new video device for actinic keratoses. The device takes images of your skin lesions during the treatment, to learn whether this device can predict how well the treatment is working.
Testing the Efficacy of Topical Calcipotriene Plus 5-Fluorouracil Combination to Activate the Immune...
Actinic KeratosisThis phase IIA study evaluates the effects of calcipotriene plus 5- fluorouracil immunotherapy for skin cancer prevention in organ transplant recipients. Precancerous skin lesions, actinic keratoses (AK), may put organ transplant recipients at higher than average risk of developing skin cancer. Topical calcipotriene is a form of vitamin D and is used to treat psoriasis and topical 5- fluorouracil is a chemotherapy agent applied to the skin. The combination of calcipotriene plus 5- fluorouracil topical cream, which activates the immune cells against cancer, may help prevent skin cancer in organ transplant recipients who have precancerous skin lesions.
Immunotherapy Before Transplantation for Skin Cancer Prevention in Organ Transplant Recipients
Cutaneous Squamous Cell CarcinomaActinic Keratoses3 moreThis clinical trial aims to investigate the efficacy of Calcipotriol ointment combined with 5-fluorouracil cream as an immunotherapy for actinic keratosis in Organ Transplant Recipients (OTRs) before transplantation and determine whether it can prevent cutaneous squamous cell carcinoma (SCC) in OTRs post-transplant.
HRQoL Keratinocyte Carcinomas
Basal Cell CarcinomaSquamous Cell Carcinoma1 moreRationale: Keratinocyte skin cancer is known to influence the HRQoL in a specific way. Derived utility values are required for cost-effectiveness analyses of new interventions. However there is no sensitive tool to capture HRQoL that translates into utilities available. Objective: To document the exact HRQoL in patients with in KC using the generic EQ-5D-5L questionnaire, as well as the TTO, 15D and the BaSQoL questionnaire, and to develop health utilities based on these tools. Study design: Longitudinal observational study (at time 0 and time 0 +12 months). Study population: Patients aged ≥18 years consulting a dermatologist or their GP for diagnosis, treatment or follow-up of a (pre)malignant skin lesion(s).
Development and Validation of an Investigator Global Assessment Score for Keratosis Pilaris
Keratosis PilarisThis validation study aims to develop a standardised investigator global assessment (IGA) score for keratosis pilaris and test the validity and reliability of the score through a one-day scoring exercise held at a private practice and compare it to a standard 0-4 IGA score specifically defined for keratosis pilaris.
Photodynamic Therapy Using Topical Aminolevulinic Acid in Treating Patients With Actinic Keratosis...
Precancerous/Nonmalignant ConditionRATIONALE: Photodynamic therapy uses a drug that becomes active when it is exposed to a certain kind of light. When the drug is active, abnormal cells are killed. Photodynamic therapy using topical aminolevulinic acid may be effective against actinic keratosis. PURPOSE: This randomized clinical trial is studying how well different photodynamic therapy regimens using topical aminolevulinic acid work in treating patients with actinic keratosis.
Biomarker Database Registry for Photodynamic Therapy
Actinic KeratosisThe purpose of this research is to obtain a blood sample from patients with actinic keratoses undergoing routine Photodynamic Therapy, in order to measure biomarkers that are relevant to VitD and 5FU metabolism and might be predictive of PDT outcome. The biomarkers to be examined include serum VitD levels at the time of PDT, and the presence/absence of gene alleles that correlate with expression of several proteins involved in VitD and 5FU metabolism. The presence of these biomarkers will be correlated to the improvement in AK lesion counts at the patient's routine follow-up visit 3 months after PDT treatment.
Combination Therapy With 5-Fluorouracil and Photodynamic Therapy in Post-transplant Premalignant...
Actinic KeratosisOrgan or Tissue Transplant; ComplicationsThis randomized, intra-patient comparative study is designed to investigate the combination regimen of 5-fluorouracil cream (5FU) and Photodynamic Therapy (PDT), versus PDT alone, for its ability to generate significantly elevated levels of the target photosensitizer, protoporphyrin IX (PpIX), in lesions of actinic keratoses (AKs) and to more effectively treat and prevent recurrence of AKs. The target population comprises patients with solid organ transplants (renal, hepatic), as well as normal (immunocompetent) subjects to control for possible influences of immunosuppression.
Imiquimod Versus Photodynamic Therapy of Actinic Keratoses in Organ Transplant Recipients
Actinic KeratosesThe purpose of this study is to compare two different therapies for actinic keratoses in organ transplant recipients with regard to efficacy and tolerability. The investiagtors are planning to examine treatment with Imiquimod 5% cream versus treatment with Methyl-aminolaevulinate 16% cream and subsequent irradiation with red light, so-called photodynamic therapy, in this patients' group. A secondary objective of our study is to investigate the reduction in the field cancerisation after both treatments using fluorescence diagnostic method and digital imaging.
Treatment of Actinic Keratoses of the Face With Imiquimod 3.75% Cream Followed by Photodynamic Therapy...
Actinic KeratosisThe purpose of this study is to explore the effect of treating actinic keratoses of the face with imiquimod 3.75% cream followed by photodynamic therapy in comparison to treatment with imiquimod alone