[18F] PSMA-1007 PET/CT in Metastatic Clear Cell Renal Cell Carcinoma

This study is using a special type of imaging scan called PSMA PET/CT — a highly sensitive nuclear medicine scan — to look for cancer spread in people with advanced kidney cancer (renal cell carcinoma). The study aims to see if this scan can detect cancer that conventional CT or MRI scans might miss. **You may be eligible if...** - You are 18 years or older - You have been diagnosed with metastatic renal cell carcinoma (kidney cancer that has spread) - Your cancer has a clear cell component (the most common type) - You have had a recent contrast-enhanced CT or MRI scan of your chest, abdomen, and pelvis within the past 5 weeks **You may NOT be eligible if...** - You are pregnant or breastfeeding - Your kidney cancer does not have any clear cell components - You cannot lie flat for 30 minutes for the scan - You have had another type of cancer in the past (except non-melanoma skin cancer) - You cannot provide informed consent - Your liver function is inadequate - Your cancer requires urgent treatment that would begin before the scan can happen - You have already received systemic or radiation treatment for cancer (other than skin cancer) Talk to your doctor to see if this trial is right for you.