Hi my husband has been on Venteclax for 4 weeks,just about to move up to 400mg and has developed a kidney stone. This has grown very quickly and is to large to pass so today he is having a stent fitted to help the kidney function better and reduce the risk of infection. Has any one else had this problem? I appreciate this treatment is hard on the kidneys. Also wanted to let others know this may happen, so they be ready if it does. Just another little trip on the CLL path to overcome,which we will do together as usual.