German Cll Study Group

This study follows 2,000 people with chronic lymphocytic leukemia (CLL) to see how the order of treatments affects how long they live. It does not test new drugs but watches patients who already received standard first-line treatments in earlier studies. The goal is to find which…

This study is a long-term registry that follows up to 8,000 people with chronic lymphocytic leukemia (CLL) and similar blood cancers. It does not test any new treatment but instead collects information on survival and disease course over many years. Participants must be 18 or old…