Active clinical trials for "Melanoma"

Observational study to know the relevance of specific anatomical location of cutaneous melanoma on lower limbs.

Primary mucosal melanomas (MPM) are rarer than cutaneous melanomas, but also more severe. They are usually refractory to conventional approaches, regularly excluded from major therapeutic programs and not sensitive to new targeted therapies orphans. " The identification of therapeutic targets and accessibility to existing, developing or future targeted therapies improves the survival of patients with MPM. The principal goal is to describe, using a large panel of genes, the prevalence of major mutations in a cohort of MPMs based on the population of a French region.

State of the question Over the past decade, the incidence of melanoma (MM) has steadily increased in France and in most developed countries. This increased incidence was concerned mainly MM thin while the incidence of MM thick that represent the true "killers", and mortality from MM remained stable or increased slightly over the same period. These epidemiological data and observations from everyday medical practice dermatologists suggest the existence of different growth patterns within MM. Indeed, some MM progressing slowly sometimes for decades before diagnosis but are thin at the time of resection. Conversely, others MM grow very quickly, resulting in thick tumors despite a diagnosis and resection sometimes very early. These fast growing MM (FGMM) probably contribute significantly to the relative mortality in MM, as improved screening failed to influence to this day. Our team has already demonstrated that the growth kinetics of the MM was a prognostic factor of tumor aggressiveness regardless of the thickness of the tumor. Using the same method to calculate the growth rate, an Australian team recently studied the growth rate in a population of patients suffering from MM. In this population 1/3 of MM had a growth of more than 0.5 mm per month. Clinical aspects and FGMM of these risk factors were individuals (injuries symmetrical achromic and regular occurrence among about older and low-nevi). The European and Australian people are very different in particular regarding the prevention policy, these results can not be extrapolated to the French population.The main objective is to identify risk factors for FGMM in French propulation

Malignant Melanoma is a deadly skin cancer that can be cured if diagnosed early. To date atypical pigmented skin lesions are diagnosed by appearance alone and many moles and lesions are excised unnecessarily and on the other hand malignant lesions are missed and diagnosed too late. In this study a protein conjugated to a florescent dye is spread on a suspicious pigmented lesion, the hypothesis is that this protein binds to malignant cells only and thus with a special camera that picks up the dye we can find pigmented lesions with early malignant transformation.

Uveal Melanoma is the most common primary intraocular tumor in adults. Most tumors metastasize to the liver. So far no sensitive or specific serological tumor marker is routinely used. The marker "Melanoma inhibitory activity" is a promising marker. Study hypothesis is to detect metastatic lesions in an early stage. This would increase life expectance of our patients

The goal of the SFI is to provide non-invasive information about tissue remodeling occurring during melanocytic transition and atypia development in the skin

The purpose of this project is to analyze tumour tissue from a group of subjects with malignant melanoma, who have been treated at the Royal Marsden Hospital.

Skin melanoma is a common form of skin cancer. Its diagnosis is usually clinically suspected and then affirmed by histopathological examination. In some cases, the histopathological analysis of these lesions is equivocal, and the malignant or benign nature of the proliferation is difficult to determine with certainty. In these cases, the use of expensive ancillary tests, which are hardly accessible and take a long time to set up (FISH - CGH-array), is usually required. Anti-PRAME immunostaining, an inexpensive and readily available technic, has recently been described as highly sensitive and specific for diagnosing malignant melanocytic proliferations. Knowledge on its utility for evaluating ambiguous melanocytic neoplasms remains limited. Our study aims to improve the current body of knowledge on the utility of PRAME immunohistochemistry for evaluating challenging samples of melanocytic proliferation. The secondary objective is to determine the PRAME immunoreactivity profile for each histological subtype of melanocytic proliferations (spitzoid tumors, cellular blue nevi, dysplastic nevi ...)

The goal of the project is to develop and validate the BioForte technology. Its main functionality should be to in silico determine candidates for novel microbiome-based therapeutics and diagnostics. Key challenge to be solved using the technology is to detect the differences in gut microbiome between oncology patients who respond to immunotherapies and the ones who do not respond to this treatment. This technology employs machine learning methods to replace the laboratory procedure for finding valuable genomic features. Such features can be crucial to identify differences between the two populations (e.g. responders vs non-responders) to target specific strains. The samples and data collected in this clinical study will be used for clinical validation of BioForte technology. For all patients treated with immunotherapy, stool collection will be performed per patient (one stool collection before setting up immunotherapy using anti-PD1 / anti-PDL1 and / or anti CTLA4 antibodies). Samples will be sequenced by long-read sequencing technology. In parallel, we will also collect samples of peripheral blood samples (PBMC) and biopsy (FFPE).

This research program is in keeping with the chemistry/biology/clinical interface and gathers 4 teams with complementary expertise in these respective fields. It will allow deciphering the mechanism(s) of action of new Thiazole-Benzenesulfonamide family (TZB) derivatives on metastatic melanoma sensitive and resistant to BRAF and MEK inhibitors. Investigators will use melanoma cell lines and primary cells from patients to validate these compounds in collaboration with clinical team 2 and 4. In conclusion, the investigators expect to establish the proof of concept that this new class of bioactive molecules (first in class) we developed in collaboration with Team 3 have the potential to go to the clinic for the treatment of highly aggressive cancers and particularly metastatic melanoma sensitive and resistant B-Raf and MEK inhibitors. Furthermore, the realization of this project can undoubtedly increase the knowledge of mechanisms and signaling pathways that are involved in resistant to BRAF and MEK inhibitors, and allow the selection of drug candidates capable of restoring the sensitivity of these melanoma cells.