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The impact of cancer-related diarrhea on changes in cancer therapy

Purpose The impact of cancer-related diarrhea (CRD) on changes in cancer therapy remains poorly characterized despite its prevalence. Methods We performed a longitudinal observational study using IQVIA PharMetrics Plus claims data. Patients included adults with CRD identified by diagnosis codes or p...

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Published in:Supportive care in cancer 2024-10, Vol.32 (10), p.668, Article 668
Main Authors: Aleem, Abdullah, Sarihan, Maya Charuni, Okhuysen, Pablo C., Roeland, Eric J., Schwartzberg, Lee, Wang, Yinghong, Chaturvedi, Pravin
Format: Article
Language:English
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Summary:Purpose The impact of cancer-related diarrhea (CRD) on changes in cancer therapy remains poorly characterized despite its prevalence. Methods We performed a longitudinal observational study using IQVIA PharMetrics Plus claims data. Patients included adults with CRD identified by diagnosis codes or pharmacy claims and compared their outcomes to matched (1:1) patients without CRD. Treatment parameters (discontinuation, persistence, augmentation, dose titration, adherence) were evaluated and stratified for the first cancer therapy (chemotherapy vs. targeted therapy vs. both). A multivariate Cox proportional hazards model was used to estimate the difference in risk of each treatment parameter between cohorts, adjusting for cancer type, therapy, and comorbidities. Results We identified 104,135 matched pairs of patients with solid ( n  = 94,411) or hematologic cancers ( n  = 9,724) receiving chemotherapy ( n  = 47,220), targeted therapy ( n  = 2,427), or both ( n  = 5,313). Patients with CRD discontinued therapy more frequently than those without CRD (chemotherapy [81.5% vs. 62.3%], targeted therapy [69.2% vs. 64.3%], both [96.0% vs. 85.5%], p  
ISSN:0941-4355
1433-7339
1433-7339
DOI:10.1007/s00520-024-08871-y