World CLL Day
Save the date for World CLL Day 2026 and get involved!
Every year on 1 September, the global CLL community comes together to raise awareness of chronic lymphocytic leukaemia (CLL), amplify the voices of people affected by CLL and improve understanding of the challenges involved in living with the disease.
In 2026, the World CLL Day campaign focuses on the theme:
Strength in Science. Power in Community.
This year, we are highlighting how scientific progress, informed decision-making, advocacy and community support can improve the lives of people affected by CLL.
We are calling on patients, caregivers, advocates, healthcare professionals, patient organisations, policymakers and other stakeholders to unite and amplify this important message.
The full campaign toolkit is now available at www.wclld.org, providing downloadable materials to help make participation simple and accessible.
Together, we can:
- Champion advocacy and support for people living with CLL
- Turn understanding into action through awareness and education
- Promote protection, equity and better access to care
- Advance hope, health and hard science for improved outcomes
Please help us spread the word by informing your community, healthcare professionals and other stakeholders about World CLL Day and encouraging them to include the campaign in their communication plans.
#WCLLD #CLL #StrengthInScience #PowerInCommunity
About World CLL Day
Chronic lymphocytic leukaemia (CLL) is a type of cancer that affects the blood and bone marrow. It is the most common type of leukaemia in adults.
Every year on 1 September, the global CLL community unites to raise awareness of CLL and give a much-needed voice to people affected by the disease.
World CLL Day provides an opportunity to share information, resources and initiatives that improve understanding of CLL and the experiences of patients, caregivers and families. It also encourages the global community to work together to improve quality of life, care experiences and outcomes for people affected by CLL.
World CLL Day 2026
The 2026 campaign, Strength in Science. Power in Community., highlights how progress in CLL depends on the combined strength of scientific research, informed patients, effective advocacy and connected communities.
The campaign is built around four key areas:
Advocacy that Protects, Support that Empowers
People living with CLL face unique challenges throughout the disease pathway, from active monitoring and treatment decisions to long-term care. Strong advocacy can help protect patients’ rights, improve access to appropriate care and ensure that the voices of people affected by CLL are heard.
Meaningful support also empowers patients, caregivers and families to navigate the CLL journey with greater confidence, connection and hope.
Turning Understanding into Action
Understanding CLL is only the beginning. Meaningful progress happens when knowledge leads to action: asking questions, making informed decisions, recognising changes, exploring treatment options and communicating openly with healthcare professionals.
Better understanding can strengthen participation in care and support more informed conversations throughout the CLL pathway.
Every Immune System Deserves a Fighting Chance
Living with CLL can affect the immune system and increase vulnerability to infections. Everyone affected by CLL deserves timely diagnosis, evidence-based care, appropriate treatment options and access to the support and protection they need.
No patient should be left behind because of where they live or the barriers they face.
Hope, Health and Hard Science
Scientific discovery continues to transform our understanding of CLL. Advances in research, innovative therapies and increasingly personalised approaches to care are creating new possibilities for people living with the disease.
Science drives progress, innovation changes outcomes and every breakthrough brings us closer to better quality of life and longer, healthier lives.
2025 Campaign
The 2025 World CLL Day campaign focused on strengthening health literacy, raising awareness and empowering better decision-making under the tagline Understand, Decide, Thrive.
The campaign highlighted the importance of understanding the full CLL pathway, including active monitoring, invisible symptoms, treatment choices and ongoing care. It encouraged patients, caregivers, healthcare professionals, advocates and other stakeholders to promote health literacy, support shared decision-making and empower people living with CLL to participate actively in their care.
2024 Campaign
The 2024 theme was Level Up—a call to action to ensure that people living with CLL receive the same attention, care and opportunities for treatment as people affected by other types of cancer.
As “levelling up” meant different things to different people and organisations, participants were encouraged to focus on the local inequalities and unmet needs most relevant to their communities.
2023 Campaign
The 2023 campaign focused on the mental health challenges experienced by people living with CLL.
The uncertainty associated with CLL, particularly during active monitoring or “watch and wait”, can have a significant emotional and psychological impact. The campaign highlighted the importance of information, understanding and support throughout the entire CLL pathway so that no one has to face CLL alone.
2022 Campaign
The 2022 campaign reflected the challenges faced by the CLL community as COVID-19 restrictions were lifted around the world.
Patients, caregivers and healthcare professionals shared their experiences of living with CLL and navigating the later stages of the pandemic. The campaign reminded the public that people vulnerable to infection continued to need understanding, protection and consideration.
2021 Campaign
The first World CLL Day took place in 2021 and focused on the vulnerabilities and needs of immunocompromised people during the COVID-19 pandemic.
The campaign highlighted the role that wider society and people with healthy immune systems could play in protecting vulnerable members of the community. The umbrella became the central visual symbol of protection, support and solidarity.
We would like to thank the following organisation for its support of World CLL Day 2026:
