I am not sure if I shared this before with you but here we have a very nice report:

A medical doctor from US (Stephen Bigelsen) reporting on his own cased - pancreatic cancer stage 4. He obtained complete remission and he is still alive and well after a treatment with gemcitabine and capecitabine, plus IV Paricalcitol (25 mcg 3x’s/week) and hydroxychloroquine (600 mg BID) http://apc.amegroups.com/article/view/4269/5197

I previously discussed Hydroxychloroquine here: https://www.cancertreatmentsresearch.com/chloroquine-hydroxychloroquine/

And here is another paper by the same author:

Evidence-based complementary treatment of pancreatic cancer: a review of adjunct therapies including paricalcitol, hydroxychloroquine, intravenous vitamin C, statins, metformin, curcumin, and aspirin https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6049054/