Dataset Information

Prevalence of and factors associated with treatment modification at first cycle in older adults with advanced cancer receiving palliative treatment.

ABSTRACT:

Introduction

Treatment toxicities are common in older adults with cancer and consequently, treatment modifications are sometimes considered. We evaluated the prevalence and factors associated with treatment modifications at the first cycle in older patients receiving palliative systemic treatment.

Methods

Patients (n = 369) from the GAP 70+ Trial (NCT02054741; PI: Mohile) usual care arm were included. Enrolled patients were aged 70+ with advanced cancer and ≥ 1 Geriatric Assessment (GA) domain impairment. Treatment modification was defined as any change from National Comprehensive Cancer Network guidelines or published clinical trials. Baseline variables included: 1) sociodemographic factors; 2) clinical variables; 3) GA domains; and 4) physician beliefs about life expectancy. Bivariate analyses and multivariable cluster-weighted generalized estimating equation model were conducted to assess the association of baseline variables with cycle 1 treatment modifications.

Results

Mean age was 77.2 years (range: 70-94); 62% had lung or gastrointestinal cancers, and 35% had treatment modifications at cycle 1. Increasing age by one year (odds ratio (OR) 1.1, 95% confidence interval [CI] 1.0-1.2), receipt of ≥second line of chemotherapy (OR 1.8, CI 1.1-3.0), functional impairment (OR 1.6, CI 1.1-2.3) and income ≤$50,000 (OR 1.7, CI 1.1-2.4) were independently associated with a higher likelihood of cycle 1 treatment modification.

Conclusion

Treatment modifications occurred in 35% of older adults with advanced cancer at cycle 1. Increasing age, receipt of ≥second line of chemotherapy, functional impairment, and lower income were independently associated with treatment modifications. These findings emphasize the need for evidence-based regimens in older adults with cancer and GA impairments.

SUBMITTER: Mohamed MR

PROVIDER: S-EPMC8557119 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature

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Publications

Prevalence of and factors associated with treatment modification at first cycle in older adults with advanced cancer receiving palliative treatment.

Mohamed Mostafa R MR Kyi Kaitlin K Mohile Supriya G SG Xu Huiwen H Culakova Eva E Loh Kah Poh KP Flannery Marie M Obrecht Spencer S Ramsdale Erika E Patil Amita A Dunne Richard F RF DiGiovanni Grace G Hezel Aram A Burnette Brian B Desai Nisarg N Giguere Jeffrey J Magnuson Allison A

Journal of geriatric oncology 20210714 8

<h4>Introduction</h4>Treatment toxicities are common in older adults with cancer and consequently, treatment modifications are sometimes considered. We evaluated the prevalence and factors associated with treatment modifications at the first cycle in older patients receiving palliative systemic treatment.<h4>Methods</h4>Patients (n = 369) from the GAP 70+ Trial (NCT02054741; PI: Mohile) usual care arm were included. Enrolled patients were aged 70+ with advanced cancer and ≥ 1 Geriatric Assessmen ...[more]

PMID: 34272204

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Project description:Background: End-of-life discussions and documentation of preferences are especially important for older cancer patients who are at high risk of morbidity and mortality. Objective: To evaluate influence of demographic factors such as religiosity, education, income, race, and ethnicity on treatment preferences for end-of-life care. Methods: A retrospective observational study was performed on baseline data from a multisite randomized clinical trial of Dignity Therapy in 308 older cancer patients who were receiving outpatient palliative care (PC). Interviews addressed end-of-life treatment preferences, religion, religiosity and spirituality, and awareness of prognosis. End-of-life treatment preferences for care were examined, including preferences for general treatment, cardiopulmonary resuscitation (CPR), and mechanical ventilation (MV). Bivariate associations and multiple logistic regression analysis of treatment preferences with demographic and other baseline variables were conducted. Results: Our regression models demonstrated that race was a significant predictor for CPR preference and preferences for MV, although not for general treatment goals. Minority patients were more likely to want CPR and MV than whites. Men were more likely to opt for MV, although not for CPR or overall aggressive treatment, than women. Higher level of education was a significant predictor for preferences for less aggressive care at the end-of-life but not for CPR or MV. Higher level of terminal illness awareness was also a significant predictor for preferences for CPR, but not MV or aggressive care at the end-of-life. Discussion: Race was significantly associated with all three markers for aggressive care in bivariate analysis and with two out of three markers in multiple regression analysis, with minorities preferring aggressive care and whites preferring less aggressive care. Contrary to our hypothesis, income was not significantly associated with treatment preferences, whereas religion was significantly associated with all markers for aggressive care in bivariate models, but not in multiple regression models. Clinical Trial Registration Number NCT03209440.

Project description:ImportanceOlder adults with advanced cancer are less likely to tolerate treatment with cytotoxic chemotherapy compared with younger patients due to their aging-related conditions. Hence, oncologists sometimes opt to employ primary treatment modifications (deviation from standard of care) during the first cycle of chemotherapy.ObjectiveTo examine the association between primary treatment modification and treatment tolerability in older adults with advanced cancer who were starting new palliative chemotherapy regimens.Design, setting, and participantsThis cohort study was a secondary analysis of the GAP70+ (Geriatric Assessment Intervention for Reducing Toxicity in Older Patients with Advanced Cancer) trial, which was conducted between July 2014 and March 2019. The GAP70+ trial included patients aged 70 years or older who had advanced (ie, incurable) cancer, had 1 or more geriatric assessment domain impairments, and planned to start a new palliative chemotherapy regimen. Data analysis was conducted in November 2022.ExposuresReceipt of standard-of-care chemotherapy regimens vs primary treatment modification defined as any change from National Comprehensive Cancer Network guidelines or published clinical trials (eg, primary dose reduction, schedule change).Main outcomes and measuresTolerability outcomes were assessed within 3 months of treatment. These outcomes included the following: (1) any grade 3 to 5 toxic effect, according to the National Cancer Institute Common Terminology Criteria for Adverse Events; (2) patient-reported functional decline, defined as the development of worse dependency in activities of daily living using scale scores; and (3) a composite adverse outcome (an end point that combined toxic effects, functional decline, and 6-month overall survival). Multivariable cluster-weighted generalized estimating equation models examined the association between primary treatment modification and outcomes adjusting for covariates.ResultsThis study included 609 patients with a mean (SD) age of 77.2 (5.2) years; more than half (333 [54.7%]) were men. Race and ethnicity was available for 607 patients: 39 (6.4%) were Black, 539 (88.5%) were non-Hispanic White, and 29 (4.8%) were of other race or ethnicity. Nearly half (281 [46.1%]) received a primary modified treatment regimen. The most common cancer types were gastrointestinal cancer (228 [37.4%]) and lung cancer (174 [28.6%]). In multivariable analysis, primary treatment modification was associated with a reduced risk of grade 3 to 5 toxic effects (relative risk [RR], 0.85 [95% CI, 0.77-0.94]) and functional decline (RR, 0.80 [95% CI, 0.67-0.95]). Patients who received primary treatment modification had 32.0% lower odds of having a worse composite adverse outcome (odds ratio, 0.68 [95% CI, 0.48-0.97]).Conclusions and relevanceIn this cohort study, primary treatment modification was associated with improved tolerability of chemotherapeutic regimens among older adults with advanced cancer and aging-related conditions. These findings may help optimize cancer treatment dosing in older adults with advanced cancer and aging-related conditions.

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Dataset Information

Prevalence of and factors associated with treatment modification at first cycle in older adults with advanced cancer receiving palliative treatment.

Introduction

Methods

Results

Conclusion

Publications

Prevalence of and factors associated with treatment modification at first cycle in older adults with advanced cancer receiving palliative treatment.

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