French Observational Study of Patients With Chronic Lymphocytic Leukemia Or Small Lymphocytic Lymphoma in Real-World Settings

To be part of this study, you need to be at least 18 years old and have a diagnosis of CLL or SLL. Crucially, your doctors must have decided that you currently need treatment for your condition, or for related immune problems like low blood platelets or anaemia caused by your immune system.

This study includes people who are starting treatment for the first time, as well as those who have had treatment before. Even if you're already in another clinical trial, you might still be able to join this observational study. The most important thing is that your medical team has agreed that you need treatment for your CLL or SLL.

However, you can't join if you don't need treatment for your CLL/SLL at this time, or if your condition is a very early, asymptomatic stage. You also can't take part if you have a more aggressive type of lymphoma called Richter's syndrome, or if your only current need is for immunoglobulin infusions without needing more specific CLL/SLL therapy.

This is an observational study, which means you won't be given a new or experimental treatment. Instead, your doctors will continue to manage your CLL or SLL as they normally would, based on what they believe is best for you. The study will simply collect information about the treatment you receive, how you respond to it, and how you are doing over time. This includes details from your regular doctor's appointments, blood test results, and any new genetic tests performed. Your medical team will continue to make all decisions about your care. The total duration of your participation will depend on how long you receive treatment and are followed up by your medical team, as the study aims to look at long-term outcomes.