Abstract
Introduction
Palliative chemotherapy (PC) is associated with a modest survival benefit in patients with incurable esophageal and gastric cancer; however, changes in symptom profile during treatment are not well described. Understanding the trajectory of symptoms during treatment may lead to improved care and facilitate shared decision making. In this study, we address this knowledge gap among all patients receiving PC in the Canadian province of Ontario.
Methods
Patients diagnosed with incurable esophageal and gastric cancer who received PC from 2012 to 2017 were identified from the Ontario Cancer Registry. Patients with one or more recorded Edmonton Symptom Assessment System (ESAS) scores in the 12 months following cancer diagnosis were included. The ESAS includes scores from 0 to 10 in nine domains (anxiety, depression, drowsiness, lack of appetite, nausea, pain, shortness of breath, tiredness, and lack of well-being). Symptom severity is categorized as none–mild (≤ 3), moderate (4–6), or severe (7–10). We focused on potentially modifiable symptoms, i.e. nausea, pain, and anxiety/depression. Logistic regression was used to identify factors associated with moderate–severe ESAS scores in these domains. Among those patients with serial ESAS scores (at 8 ± 2 and 12 ± 2 weeks) receiving chemotherapy, we describe changes during treatment (decrease by ≥ 1 = improved; − 1 > 0 > 1 = unchanged; increase by ≥ 1 = deteriorated).
Results
The cohort included 1900 patients who received PC, of whom 79% (1497/1900) had one or more recorded ESAS scores. In multivariate analysis, younger patients were more likely to have moderate–severe scores in nausea (odds ratio [OR] 1.89, 95% confidence interval [CI] 1.23–2.90 [p < 0.01] in patients aged 41–50 years compared with patients aged ≥ 71 years) and pain (OR 1.88, 95% CI 1.36–2.60 [p < 0.01] in patients aged 51–60 years compared with patients aged ≥ 71 years). Compared with males, females were more likely to report moderate–severe scores in anxiety/depression (OR 1.58, 95% CI 1.21–2.08 [p < 0.01]). At 8 ± 2 weeks from PC initiation, symptom scores were unchanged in 19–42% of patients, improved in 30–51% of patients, and deteriorated in 17–35% of patients. The greatest change in symptom burden was observed for appetite (51% improvement) and anxiety/depression (35% deterioration). Similar trends were observed at 12 ± 2 weeks.
Conclusions
In this large, population-based study, we observed that younger patients were more likely to report moderate–severe symptoms in pain and nausea, and females were more likely to report moderate–severe symptoms in anxiety/depression. Anxiety/depression symptoms become increasingly problematic for a substantial proportion of patients receiving PC. Supportive care efforts to mitigate these symptoms in routine practice are needed.
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Funding
This study was funded by the CTAQ Endowment Fund, Queen’s University, awarded to Dr. Shaila Merchant.
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All authors contributed to (1) substantial contributions to the study conception and design, or analysis and interpretation of data; (2) drafting the article or revising it critically for important intellectual content; (3) final approval of the version to be published; and (4) agreement to be accountable for all aspects of this work.
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Shaila J. Merchant, Weidong Kong, Michael Brundage, and Christopher M. Booth have no conflicts of interest to declare.
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Merchant, S.J., Kong, W., Brundage, M. et al. Symptom Evolution in Patients with Esophageal and Gastric Cancer Receiving Palliative Chemotherapy: A Population-Based Study. Ann Surg Oncol 28, 79–87 (2021). https://doi.org/10.1245/s10434-020-09289-6
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DOI: https://doi.org/10.1245/s10434-020-09289-6