Here's some links on Ivermectin & cancer:
https://www.sciencedirect.com/science/article/abs/pii/S1043661820315152
https://journals.lww.com/oncology-times/fulltext/2021/05050/use_of_the_anti_parasitic_drug_ivermectin_to_treat.4.aspx
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5835698/