The LUM 015 agent had been studied in mice with colon cancer cells a few years ago to see if the chemical could make the cells that they wanted to detect with sufficient accuracy and reliability literally "glow" when seen under special microscopic pathology examination.
In the prostate cancer world, the only thing I found was a very early clinical trial in the 2018-2019 range involving just a few men at just one site who would get the agent just before they had prostate removal surgeries, so that they could test the agent for safety in humans. Perhaps still a long way away from the kinds of statistical evidence in further trials that might lead to an eventual FDA approval for usage in early prostate cancer, caught early in the initial biopsy/initial pathology stage.
Details here:
https://clinicaltrials.gov/ct2/show/nct03441464?term=lum+imaging&cond=prostate+cancer&draw=2&rank=1Charles