Overview
A prospective, non-interventional study involving the collection of biological samples with associated anonymised data.
Biological samples will be collected at the time of diagnosis and/or as the disease progresses, with or without treatment, always in conjunction with tests scheduled as part of routine care or within the context of a clinical trial.
Eligibility
Inclusion Criteria:
- Adults aged 18 years and over
- Blood monocytosis ≥ 0.5 × 10⁹/L and ≥ 10% of total white blood cells or
- Confirmed diagnosis of chronic myelomonocytic leukemia
- Regardless of stage (chronic or transformed), and whether or not currently being treated
- Signed informed consent
Exclusion Criteria:
- Active, uncontrolled infection (particularly hepatitis B, hepatitis C, HIV)
- Refusal informed consent


