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345 active trials for Melanoma

Feasibility of IV Tc-99m-tilmanocept for Imaging of M2-like TAMs in Metastatic Melanoma

This study in 20 patients is designed as a monocentric, open-label and uncontrolled, exploratory pilot study. Patients diagnosed with advanced melanoma (stage III-IV) and scheduled for anti-PD-1 immunotherapy will be recruited for this project. Patients will receive IV 250 µg Tilmanocept, labelled with 370 MBq of Tc-99m (bolus injection) according to the Navidea's protocol in our GMP certified radiopharmaceutical unit, before the first cycle of clinically scheduled immunotherapy. Scintigraphy images will be acquired dynamically from time of injection to +30 minutes. Quantitative SPECT/CT (xSPECT/CT, Siemens Symbia Intevo, Erlangen, Germany) imaging will be performed up to 1 hour p.i. to evaluate hyperaemia, and up to 3 hours p.i. to image and measure the CD206 receptor uptake. The data of the scans will be compared to immunohistochemistry results from biopsy staining for TAMs and M2-like TAMs and retrospectively with response to the immunotherapy to determine any correlation between M2-like TAMs and treatment response. For the planned retrospective comparison we will use the FDG - PET/CT data that is done after the immunotherapy as standard of care. We will analyse the lesion size and FDG - uptake in standard of care PET/CT of CD206+ and CD206 negative lesions in Tilmanocept SPECT/CT before and after immunotherapy to determine any correlation between CD206 related uptake and treatment response.

Start: January 2021
Intratumoral Injection of Autologous CD1c (BDCA-1)+ Myeloid Dendritic Cells Plus Talimogene Laherparepvec (T-VEC)

Over the past few years it has become evident that cancer cells can be recognized by the patient's own immune system. The immunological mechanisms at play are often referred to as the "cancer immune cycle" (Chen and Mellman 2013; Mellman 2013; Chen and Mellman 2017).In immune-evasive tumors a pivotal role has been attributed to myeloid dendritic cells (myDC) in regulating the activity of anti-tumor CTL activity within the TME (Broz, Binnewies et al. 2014). In animal models, myDC have been demonstrated to play an essential role in "licensing" anti-tumor CTLs to eradicate tumor cells. These myDC also migrate to tumor-draining lymph nodes and present tumor antigens to T-cells in these secondary lymphoid organs (Roberts, Broz et al. 2016). Human myDCs exist in two subsets that are differentiated by expression of either the BDCA-1 or BDCA-3 surface marker. The CD1c (BDCA-1)+ antigen is specifically expressed on human dendritic cells, which are CD11chighCD123low and represent the major subset of myDCs in human blood (about 0.6 % of all peripheral blood mononuclear cells (PBMCs)). CD1c (BDCA-1)+ myDC play an important role in the cross-presentation of tumor antigens following immunogenic cell death (Di Blasio, Wortel et al. 2016). Under conditions of tumor growth, myDC will be poorly recruited to the tumor microenvironment, do not get activated and thereby fail to efficiently coordinate anti-tumor immunity within the tumor micro-environment and present tumor associated antigens within tumor-draining lymph nodes. Talimogene laherparepvec (T-VEC) is a first-in-class oncolytic virus based on a modified herpes simplex virus (HSV) type 1 designed to selectively replicate in and lyse tumor cells while promoting regional and systemic antitumor immunity. In this phase I clinical trial we propose to investigate the safety of intratumoral injection of autologous CD1c (BDCA-1)+ myDC in non-visceral metastases of melanoma plus intratumoral injection of T-VEC (at its approved dose and regimen for the treatment of melanoma). We hypothesize that CD1c (BDCA-1)+ myDC in the T-VEC inflamed tumor microenvironment of the metastasis will capture tumor antigens in vivo and through cross-presentation of these antigens coordinate an effective anti-tumor T-cell response.

Start: September 2018
The PIONEER Initiative: Precision Insights On N-of-1 Ex Vivo Effectiveness Research Based on Individual Tumor Ownership (Precision Oncology)

The PIONEER Initiative stands for Precision Insights On N-of-1 Ex vivo Effectiveness Research. The PIONEER Initiative is designed to provide access to functional precision medicine to any cancer patient with any tumor at any medical facility. Tumor tissue is saved at time of biopsy or surgery in multiple formats, including fresh and cryopreserved as a living biospecimen. SpeciCare assists with access to clinical records in order to provide information back to the patient and the patient's clinical care team. The biospecimen tumor tissue is stored in a bio-storage facility and can be shipped anywhere the patient and the clinical team require for further testing. Additionally, the cryopreservation of the biospecimen allows for decisions about testing to be made at a later date. It also facilitates participation in clinical trials. The ability to return research information from this repository back to the patient is the primary end point of the study. The secondary end point is the subjective assessment by the patient and his or her physician as to the potential benefit that this additional information provides over standard of care. Overall the goal of PIONEER is to enable best in class functional precision testing of a patient's tumor tissue to help guide optimal therapy (to date this type of analysis includes organoid drug screening approaches in addition to traditional genomic profiling).

Start: March 2019