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Clinical Trial Summary

Prevalence and prognostic significance of polypharmacy has not been evaluated in adults undergoing treatment for AML. Investigating the significance of polypharmacy in this population may help improve patient assessment and provide an opportunity to design simple interventions to minimize unnecessary morbidity associated with treatment.


Clinical Trial Description

The incidence of acute myelogenous leukemia (AML) increases with age. Older AML patients, generally defined by age 60 years and above, have worse treatment outcomes than younger patients. While selected older patients can benefit from standard therapies, as a group they experience increased treatment-related toxicity, decreased remission rates, decreased disease-free survival and decreased overall survival. Outcome disparity is in part explained by age related biologic features. Older patients are more likely to present with unfavorable cytogenetic abnormalities, multidrug resistance phenotypes, and secondary AML. However, even older adults with favorable tumor biology have a worse prognosis compared to younger patients. Patient-specific factors including impaired physical function and comorbidity independently predict increased treatment toxicity and decreased survival. Improving patient assessment strategies is critical to identify those patients who are most likely to benefit from induction and post-remission therapies.

Treatment decision-making for older adults is hampered by the difficulty of accurately predicting vulnerability to toxicity. Increasing age alone is a risk factor for poor response to therapy. Older adults of the same chronologic age represent a heterogeneous population. Multiple patient-specific factors may impact an older adult's ability to tolerate tumor burden and treatments. Comorbid disease, functional status and cognitive status are examples of factors that reflect an individual patient's reserve capacity; none of these can be adequately assessed with chronologic age alone.

Translating geriatric assessment strategies into the evaluation of older patients with acute leukemia should help refine the treatment approach to this population. One strategy commonly used in geriatric medicine is the comprehensive geriatric assessment (CGA). CGA refers to a multidisciplinary evaluation of geriatric domains, including comorbid disease, physical function, cognitive function, psychological state, nutritional status, and medication management. In older cancer patients CGA can identify problems that may interfere with cancer treatment and is recommended by the NCCN Guidelines for "Senior Adult Oncology". The optimal measures to use and how to change management based on results are less clear.

Medication management may be of particular importance for older adults with AML due to the potentially high prevalence of polypharmacy in this population. Studies of older adults with cancer report average numbers of medications ranging from 4-9. These numbers may be higher for patients being actively treated for acute leukemia. Polypharmacy is associated with increased adverse drug reactions and increased risk of drug-drug interactions. Careful medication review with discontinuation of potentially unnecessary or inappropriate medications may minimize negative consequences of polypharmacy.

To date, however, prevalence and prognostic significance of polypharmacy has not been evaluated in adults undergoing treatment for AML. Investigating the significance of polypharmacy in this population may help improve patient assessment and provide an opportunity to design simple interventions to minimize unnecessary morbidity associated with treatment. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02662920
Study type Observational
Source Wake Forest University Health Sciences
Contact
Status Completed
Phase
Start date August 2010
Completion date November 2014

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