Hi Michal, I am sorry to hear your father was diagnosed with lung cancer. Wishing him all the best with his treatment. I am attaching a link to an article written by our Editorial Team that I hope helps. Please feel free to reach out anytime, we are here for you both. Warmly, Alisa, LungCancer.net Team Patient Leader https://lungcancer.net/medications/tepmetko-tepotinib