Every 1 September, the global CLL community unites to raise awareness about CHRONIC LYMPHOCYTIC LEUKEMIA (CLL) and give those affected by a diagnosis of CLL a much needed-voice. On World CLL Day we come together to improve understanding of the medical vulnerability of CLL patients and the challenges involved in living with CLL.
WORLD CLL DAY 2025
In 2025, WCLLD campaign focuses on strengthening health literacy, raising awareness, and empowering better decision-making. We are calling on stakeholders, healthcare professionals, industry leaders, patients and advocates to unite and amplify our message.
Together, we can:
- Promote health literacy, CLL awareness and timely intervention
- Empower patients to seek the knowledge to inform their choices
- Foster a global community of support and advocacy
Main tagline: Understand, Decide, Thrive



What is CLL?
Chronic lymphocytic leukemia (CLL) is a type of cancer of the blood and bone marrow. It is the most common leukemia in adults. Chronic lymphocytic leua typsddfrfd fddcanc cer of the blood and bone marrow.
About World CLL Day
Every 1 September, the global CLL community unites to raise awareness about Chronic Lymphocytic Leukemia (CLL) and give those affected by a diagnosis of CLL a much needed voice. ldee xf fd bc bc

How to get involved
The World CLL Day 2025 campaign toolkit is developed to make your participation seamless and smooth.