I discussed that in a prior post. The trial has not been completed as of yet as they are still recruiting volunteers. They are testing the supplement niagen which I believe is nicotinamide riboside. I myself did not see significant improvement, but I don't know if I received the supplement or the placebo. Two different oncologists told me at the time that they had other patients who were seeing good results. I just recently had to replace my oncologist who moved out of the area, and decided to go back to one of the oncologists involved in the trial even though she practices 50 miles away. We did not discuss the trial, but before I left, she suggested I try niagen. I did not question her further as I didn't want to ask questions she might not be allowed to answer with the trial ongoing. It's a double blind trial which means the doctors don't know who is getting the placebo. My best guess is that the doctor and I both think I was getting the placebo. Here's a link to the trial information.
https://clinicaltrials.gov/search?cond=Peripheral%20Neuropathy&term=Chemotherapy-Induced%20Peripheral%20Neuropathy&intr=Niagen&aggFilters=status:not%20rec