Histogen. Replicel, etc..... Any updates

Has there been any news on Histogen’s phase 3 trial. I know replicel is preparing to begin phase 2 in Berlin this year. There hasn’t been any news from histogen lately. Regarding Dr. Nigam, was there an update on the status of his case studies which were to convert high norwoods to NW1 OR nw2 or was it a flop. and what ever happened to ironman

It would have been all over the news if anyone converted a NW6 to a NW2.