Spots Global Cancer Trial Database for Targeted Imaging of Melanoma for Alpha-Particle Radiotherapy

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Trial Identification

Brief Title: Targeted Imaging of Melanoma for Alpha-Particle Radiotherapy

Official Title: A Phase 1 Cross-over Biodistribution Study of [203Pb]VMT01 for Single Photon Emission Computed Tomography (SPECT) Imaging and [68Ga]VMT02 for Positron Emission Tomography (PET) Imaging of Stage IV Metastatic Melanoma

Study ID: NCT04904120

Conditions

Interventions

[203Pb]VMT01

[68Ga]VMT02

Study Description

Brief Summary: The study hypothesis is that new imaging agents \[203Pb\]VMT01 and \[68Ga\]VMT02 can be safely used in humans without independent biological effect and can be used to image melanoma tumors expressing the melanocortin sub-type 1 receptor (MC1R) by SPECT/CT and PET/CT imaging modalities respectively.

Detailed Description: This is a first-in-human study evaluating the suitability of \[203Pb\]VMT01 for SPECT/CT imaging and \[68Ga\]VMT02 for PET/CT imaging of MC1R-expressing metastatic melanoma. Study results will provide foundational data to develop imaging and dosing for future therapeutic trials of \[212Pb\]VMT01 for the treatment of metastatic melanoma. The study will be a cross-over study with the participants serving as their own comparator. Participants with positive FDG-PET scans for stage IV (or inoperable stage III) metastatic melanoma will undergo SPECT/CT scans utilizing \[203Pb\]VMT01 followed a few weeks later by PET/CT scans utilizing \[68Ga\]VMT02, or vice versa. The order of the imaging agents will be randomly assigned.