In case you need any more persuasion that we are in exiting times for the future of CLL, read this article about the exciting results of a drug which all being well may one day replace ibrutinib. Not every promising drug gets all the way through. But when you have a drug with a similar target but hopefully fewer side effects the likelihood of success improves.
cancer.osu.edu/news-and-med...
Title changed so information on Acalabrutinib/Calquence can be found via Search - Admin