Sad to hear that anon. My wife's friend is going through a similar situation as you are.

A couple of supplements I would look into are:

berberine - help with glioblastomas(brain tumors) and high blood sugar(the thing that feeds cancer)

Vitamin E, but specifically TOCOTRIENOLS. In no case should you get tocopherol(which is the less bioavailable form of Vitamin E)

In a recent finding that stunned researchers, tocotrienol supplementation was found to dramatically extend the life span of mice with pancreatic cancer.8 Pancreatic cancer is among the most aggressive and deadly human cancers, with survival times typically counted only in months.11,12 The 2013 study showed that after 16 weeks of treatment, just 10% of placebo-treated mice remained alive, while 30% survived in a group treated with gemcitabine, a standard chemotherapy drug. However, a remarkable 70% of mice had survived in the tocotrienol group. Combination treatment with gemcitabine and tocotrienols produced a remarkable 90% survival rate.

Source: https://www.lifeextension.com/magazine/2014/8/the-little-known-benefits-of-tocotrienols

Copper is also a very powerfull anti-cancer agent. Take it with zinc, on a 2:1 ratio in favor of zinc to avoid an imbalance on both.

Source: https://revealingfraud.com/2024/01/health/cancer-and-copper/

Edit: forgot the link including the study that there is a direct correlation betweem high blood sugar and cancer. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4016871/