This clinical trial is focused on studying rectal cancer, a type of cancer that affects the last part of the large intestine. The study will use a treatment called NEP-1, which is a solution for injection containing ferumoxtran-10. This substance is also known by other names, such as BMS-180549 and AMI-227. The purpose of the study is to evaluate the dose and safety of NEP-1 when used with a special imaging device called the NanoEcho Imaging Device. This device helps visualize the movement of tiny particles in the body to check if the cancer has spread to nearby lymph nodes.
The study is divided into two parts. In the first part, healthy volunteers will receive the NEP-1 injection to determine the right dose and timing for examining lymph nodes using the NanoEcho Imaging Device. In the second part, patients with rectal cancer will receive the same treatment to confirm the findings from the first part. The study aims to see how well the device can detect changes in the lymph nodes and to ensure the treatment is safe for patients.
Participants in the study will receive the NEP-1 injection and undergo imaging with the NanoEcho Imaging Device. The study will monitor the size and distance of lymph nodes from the injection site and check for any side effects or changes in health. The goal is to improve the understanding of how rectal cancer spreads and to develop better ways to detect it early. The study is expected to continue until mid-2025.



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