View clinical trials related to Nevus, Pigmented.
Filter by:Childhood and adolescence are a dynamic process in terms of nevogenesis, and the development and growth of new melanocytic nevus is frequently observed. Melanomas, although rare, can also be seen in the pediatric age group. Therefore, nevus monitoring with videodermoscopy may be necessary in the pediatric age group. Aim of our study is to show the dynamic pattern and diameter modifications in pediatric nevi.
This study is - to analyze whether more changes in melanocytic nevi (MN) occur in women during and after pregnancy compared to non-pregnant women of the same age - and to analyze psychological effects of total body mapping and dermoscopic examination assisted by artificial intelligence during pregnancy.
Aim of study: To collect data for a new image-guided diagnostic algoritm, enabling the investigators to differentiate more precisely between benign and malignant pigmented tumours at the bedside. This study will include 60 patients with four different pigmented tumours: seborrheic keratosis (n=15), dermal nevi (n=15), pigmented basal cell carcinomas (n=15), and malignant melanomas (n=15), these four types of tumours are depicted in Fig.1, and all lesions will be scanned by four imaging technologies, recruiting patients from Sept 2019 to May 2020. In vivo reflectance confocal microscopy (CM) will be used to diagnose pigmented tumours at a cellular level and provide micromorphological information5;6. Flourescent CM will be applied to enhance contrast in surrounding tissue/tumours. Optical coherence tomography (OCT), doppler high-frequency ultrasound (HIFU) and photoacustic imaging (also termed MSOT, multispectral optoacustic tomography) will be used to measure tumour thickness, to delineate tumours and analyze blood flow in blood vessels. Potential diagnostic features from each lesion type will be tested. Diagnostic accuracy will be statistically evaluated by comparison to gold standard histopathology
This is a global, multicenter, randomized, double-blind, stratified, vehicle-controlled study of the efficacy and safety of Patidegib Topical Gel, 2%, applied topically twice daily to the face of adult participants with Gorlin syndrome. Participants will be required to apply the investigational product for 12 months. The primary endpoint is a comparison between the two treatment arms of the number of new BCCs that develop over the 12 month period.
The investigators will be testing whether aminolevulinate-based (Levulan™) Photodynamic Therapy (PDT) shows effectiveness in the treatment and prevention of cutaneous basal cell carcinoma (BCC) in Basal Cell Nevus Syndrome (BCNS) patients. Levulan™ PDT is an FDA-approved method widely used currently for squamous precancers of the skin. The investigators hypothesize that PDT will provide exceptional benefit in the BCNS population because PDT is nonmutagenic, nonscarring, and can be safely repeated many times. Additionally, the study will investigate whether there are any differences in tumor clearance between the Blu-U® (blue lamp) and Aktilite™(red lamp) therapies.
This is an extension study of Protocol CA194002 to allow 2 specific participants with basal cell nevus syndrome in the CA194002 study at Princess Margaret Cancer Centre who are still benefitting from the study drug BMS-833923 to continue receiving the study drug. This study will continue to evaluate the safety and tolerability of BMS-833923 in these participants.
MicroRNAs (miRNAs) are very small endogenous RNA molecules about 22-25 nucleotides in length, capable of post-transcriptional gene regulation. miRNAs bind to their target messenger RNAs (mRNAs), leading to cleavage or suppression of target mRNA translation based on the degree of complementarity. miRNAs have recently been shown to play pivotal roles in diverse developmental and cellular processes and linked to a variety of skin diseases and cancers. In the present study, the investigators examines the expression profiles of miRNA machinery components such as miRNA maturation and transport factors, microprocessor complex and RISC subunits in cutaneous melanoma, cutaneous melanoma metastases and benign melanocytic nevi.
The purpose of this study is to reduce the number of new surgically eligible BCCs by 50% appearing during month 3-18 of medication ingestion.
Changes in nevus count in 16 children (8m, 8f) aged between 2 and 17 years (median:8 years) suffering from different malignancies were examined every three months during a one-year period after starting chemotherapy. An age and sex matched control group underwent the same skin examinations.At the start of our study, the range of number of nevi in the chemotherapy group was 0-133, in the control group 2-199.
This project is a multicenter study in which we will investigate a dual concept of nevogenesis. Study location is the Department of Dermatology at the Medical University of Graz in collaboration with centers in Austria (Vienna), Italy (Naples, Benevento, Modena), Spain (Barcelona) and the United States (New York). The hypothesis is that small congenital melanocytic nevi (CMN), "early" acquired melanocytic nevi in childhood (AMN) and dermal nevi, all dermatoscopically characterized by globular pattern, belong to the same spectrum of genetically determined melanocytic proliferations that develop due to endogenous pathways, in contrast to "true" acquired melanocytic nevi, dermatoscopically showing reticular pattern, that develop due to exogeneous factors such as UV-exposure.