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Chronic lymphocytic leukemia (CLL) is a hematological neoplasm that primarily affects older individuals and is the most common type of leukemia in adults in Western countries. CLL mainly affects older adults, with an average age at diagnosis of around 70 years, and there is a slightly higher risk in men compared to women. It is characterized by the proliferation of clonal B lymphocytes in peripheral blood, bone marrow, and lymphoid organs. Although CLL has a relatively slow progression in many cases, patients may experience chronic fatigue, muscle weakness, functional impairment, and psychological disorders, such as anxiety and depression, which significantly affect their quality of life.
In this context, it has been shown that physical exercise, especially strength training, can considerably improve physical and psychological conditions in oncology populations, such as those with breast cancer and colorectal cancer, as well as in older adults, where the benefits of resistance training are widely recognized. These benefits include increased muscle strength, reduced fatigue, improved functional abilities, psychological well-being, and overall quality of life. Furthermore, there is evidence that exercise can reduce systemic inflammatory markers, such as C-reactive protein (CRP), and improve lipid profiles by lowering total cholesterol and triglycerides, which is crucial for cancer patients at risk of cardiovascular diseases.
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Current research on the effects of physical exercise in patients with CLL is limited. While some studies suggest that cancer patients may benefit from physical exercise, most research has focused on other types of cancer, such as breast, lung, or colorectal cancer. In the case of patients with CLL, in addition to functional and psychological issues, they often experience chronic inflammation and alterations in lipid profiles, which can increase the risk of cardiovascular comorbidities.
Inflammatory markers, such as C-reactive protein (CRP) and pro-inflammatory cytokines (IL-6, TNF-α), are common in patients with CLL, and it has been suggested that modulating these markers through exercise may help control systemic inflammation. Strength training, in particular, could be beneficial for improving the inflammatory and lipid profiles in these patients, although this has not been thoroughly evaluated in this population.
Regarding mental health, studies have reported that patients with CLL experience high levels of anxiety and depression, which significantly deteriorate their quality of life. In other oncology populations, exercise has proven effective in reducing these symptoms and improving overall well-being. However, it has not been sufficiently studied whether these effects can be replicated in patients with CLL, representing a gap in the current literature.
Finally, the loss of muscle strength, a key indicator in the diagnosis of sarcopenia according to the diagnostic algorithm proposed by the European Working Group on Sarcopenia in Older People in 2019 (EWGSOP2), should be considered another common issue in patients with CLL, due to both the average age of the patients (70 years) and the disease itself or the side effects of treatment. Although it has been shown that physical exercise in general, and strength exercise in particular, can improve muscle strength and functional capacity in older adults and cancer patients, studies evaluating these effects in patients with CLL are lacking. Assessing how a strength training program can influence functional recovery and improve the quality of life of these patients is crucial for their clinical management.
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Inclusion and exclusion criteria
Inclusion Criteria
Individuals diagnosed with CLL who are undergoing active treatment. Individuals who have not engaged in regular physical activity in the past 8 weeks.
Performance Status (ECOG) 0-1. Signed informed consent.
Exclusion Criteria
Presence of any contraindications for physical exercise: severe musculoskeletal diseases, severe cardiovascular diseases, bone metastases, and other conditions determined by a healthcare professional.
Patients unable to perform the initial assessment tests or who have difficulties performing basic exercises.
Patients who must discontinue treatment due to intolerance. Other circumstances at the discretion of the researchers that may interfere with the objective or development of the study.
Primary purpose
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Interventional model
Masking
40 participants in 2 patient groups
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Central trial contact
Carlos Martín-Sánchez, PhD; Juan Luis Sanchez-Gonzalez, PhD
Data sourced from clinicaltrials.gov
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