BTK and pancreatic neoplasm: Ibrutinib, a bruton tyrosine kinase (BTK) inhibitor, plays a role in the immunomodulation of pancreatic cancer tumor microenvironment [138] and therefore the BTK-inhibitor ibrutinib was tested together with nab-paclitaxel and gemcitabine in advanced pancreatic cancer patients as first-line treatment (Resolve study) [139].