Risk factors for unexpected hospital attendances and protocol modifications in patients on systemic cytotoxic anticancer treatments.

Authors

Bharneedharan Surendaran, Edward Won-Ho Park, Asif Muzamil, Krishna Moorthy

Published in

Journal of oncology pharmacy practice : official publication of the International Society of Oncology Pharmacy Practitioners. Pages 10781552261482096. Sep 03, 2026. Epub Sep 03, 2026.

Abstract

BackgroundSystemic anticancer cytotoxic therapies (SACT) often have complications that can lead to unexpected hospital attendances usage (UHA) and protocol modifications (PM). UHA have been associated with poorer median survival and increased economic burden on healthcare systems. Our study aims to identify any significant predictors for UHAs and PMs.MethodsOur single centre retrospective cohort study aims to identify any significant predictors for UHAs and PMs. Patient demographics, details of UHA and SACT regimen data were collected for each patient between March 2024 to March 2025. For our univariate analysis of possible predictors, we used chi squared for any association between categorical variables and independent t tests for continuous variables. While for multivariate analysis, binary logistic regression was conducted to identify any significant predictors.Results534 patients were analysed with 218 (40.8%) having stage IV disease. 314 patients (58.8%) had at least one UHA and 378 patients (70.8%) had PMs. There were no significant predictors for UHAs. While patients who progressed on SACT was a predictor for PMs (HR 2.514, 95%CI 1.216-5.198, p = 0.013). Furthermore, progression on SACT (HR 0.441, 95%CI 0.232-0.841, P = 0.013) and line of therapy (HR 0.719, 95%CI 0.567-0.912, P = 0.0006) were predictors for completing all SACT cycles. Finally, age (HR 1.026, 95% CI 1.002-1.051, p = 0.036) and line of therapy (HR 0.679, 95% CI 0.530-0.870, p = 0.002) were predictors for dose reduction.DiscussionLine of therapy was a predictor for patients completing their SACT and undergoing a dose reduction. Potentially, older patients could have an upfront dose reduction to improve their quality of life. Our limitations consisted of our study being a single centre and using retrospective data collection. Future multi centre prospective studies are needed to understand the scale of the problem and validate this study results.

PMID:
42690690
Bibliographic data and abstract were imported from PubMed on 04 Sep 2026.

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