CLL Flashcards
Typical clinical course with CLL
While most patients will have an initial CR or PR, ALL will relapse eventually.
Preferred first line options for CLL
1) venetoclax + obinutuzumab
2) acalabrutinib + obinutuzumab
CLL drug classes
- Bruton’s tyrosine kinase [BTK] inhibitors
- PI3-kinase inhibitors
- BCL2 inhibitors
- novel antibodies and other investigational therapies (eg, chimeric antigen receptor T cells)
clinical significance of IgVH mutational status
= mutated immunoglobulin heavy chain variable
- UNmutated = shorter survival overall and a higher risk of relapse following conventional treatment, including chemoimmunotherapy and hematopoietic cell transplantation
13q deletion clinical significance
very good prognosis because the median time for survival (that is, 50 percent survival) is almost
17q deletion clinical significance
1) poor prognosis (median survival historically only 3 years from the time of diagnosis)
2) predicts lack of benefit from standard chemoimmunotherapy
3) Favorable response to ibrutinib
11q deletion clinical significance
poor prognosis
most common adult leukemia
CLL
median age at diagnosis
72
CLL RF’s
Male, older age, caucasian
Variables involved in CLL staging
- lymphocytosis
- presence of hepatomegaly and splenomegaly
- presence of cytopenias
- **no imaging
What typically leads to CLL diagnosis?
- incidental lymphocytosis
- asymptomatic lymphadenopathy
presentation
- fatigue and malaise, early satiety, abdominal discomfort (splenomegaly), B symptoms (fevers, night sweats, weight loss), recurrent infections
Diagnostic criteria + what is required for diagnosis
1) Peripheral blood B-lymphocyte count >5K
2) Flow cytometry confirmation of circulating B lymphocyte clonality (CD5+ + CD23+)
3) Percentage of prolymphocytes <55% of lymphocytes
* BMB not needed. Just flow cytometry.
typical cell surface markers
CD5, CD19, CD23
average time to initiation of therapy
4-5 years
CLL workup
FISH
Flow cytometry
Immunohistochemistry
NO BMB needed
Poor prognosticator on FISH testing
Deletion 17p (OS 2-3 years) Deletion 11q (OS 6-7 years)
Favorable prognosticator on FISH testing
Deletion 13q
Factors that influence treatment strategy
Age
Functional status and comorbidities
Cytogenetics