Is there anybody who follows Jay Campbell or has his books that has seen if he recommends any peptides for cancer? I've read about it, but it seems that the medical profession has only advanced to getting ready for clinical trials.
Potentially, GHK-Cu has anti-cancer actions at the genomic level, but the research isn't conclusive. Dr Kristi Sawicki talks about it in a deep dive she did in this video:
FOXO4 is effective in clearing out senescent cells (aka zombie cells) that can potentially become cancerous, but I'm not sure if it effects tumors.
5-amino-1mq suppresses the NNMT enzyme which is elevated in certain cancers (ovarian, pancreatic and gastric, from what I know, but possibly others). It's theorized that it could improve specific cancer outcomes that involve elevated NNMT.
LL37 is a weird one: in certain cancers such as breast, lung and ovary it seems to facilitate cancer formation while in other cancers like colon and gastric cancer it has been proven to be anti-cancer.
PNC-27 is supposed to straight up kill cancer cells through membrane lysis while leaving normal cells alone, but I know very little about it.
Obviously all of this would have to be researched extensively before attempting anything, but this is what I've gathered, FWIW.