This study evaluates how the treatment for gastroesophageal cancer affects physical function in patients who receive chemotherapy as part of their treatment for gastroesophageal cancer.
PRIMARY OBJECTIVE: I. To determine the change in physical function from baseline to 6 months of treatment, as measured by the short physical performance battery (SPPB). OUTLINE: This is an observational study. Patients undergo blood sample collection as well as complete surveys, physical function tests and may complete an interview on study.
Study Type
OBSERVATIONAL
Enrollment
72
Non-interventional study
UCLA / Jonsson Comprehensive Cancer Center
Los Angeles, California, United States
Change in SPPB
Will characterize the levels of function at each time point and longitudinal changes in function using descriptive statistics (means, SDs, change scores) in the overall patient sample and by pre-treatment/treatment variables. To assess the associations between pre-treatment/treatment variables and change in function, we will use linear regression models with SPPB change score from baseline to 6 months as the dependent variable and pre-treatment demographic, clinical, and geriatric assessment characteristics as the predictor variables, controlling for the patient's pre-treatment level of function. Potential predictors will be examined individually and in a parsimonious multivariable model. We will also fit linear mixed models for each outcome variable using measurements at all time points and examine differences in change over time by pre-treatment/treatment variables using interaction terms. Time will be treated as a categorical variable, using indicator variables of time.
Time frame: Through the end of cancer treatment, an average of 6 months
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