ArticlemedRxiv : the preprint server for health sciences2025
Effect of systemic glucocorticoid immunosuppression timing, dose, and duration on overall survival among immune checkpoint inhibitor recipients: a retrospective multicohort study.
Article in medRxiv : the preprint server for health sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Systemic immunosuppression (sISP), particularly with glucocorticoids, is commonly used among patients receiving immune checkpoint inhibitor (ICI) therapy. Although recent studies have demonstrated that sISP is associated with poor outcomes in ICI recipients, there is limited information on how the timing, dose, and duration of sISP affect overall survival (OS). This multi-cohort retrospective study aims to address these gaps. Methods: This study included 13,086 ICI recipients from Massachusetts General Hospital, Brigham and Women's Hospital, and Dana-Farber Cancer Institute (MGBD) between May 31, 2015, and October 11, 2021. For independent validation, 26,172 ICI recipients were identified from the TriNetX database between April 30, 2010, and October 11, 2021, using 2:1 propensity score matching. Multivariable survival analyses were conducted with Accelerated Failure Time (AFT) models, reporting Time Ratios (TRs) and 95% Confidence Intervals (CIs), where TR<1 indicates shorter OS. Findings: In the MGBD cohort, sISP within one year of ICI initiation was associated with worse OS compared to patients without sISP via landmark analysis. This association was accentuated among patients receiving sISP closer to ICI initiation, with those receiving sISP within one month of ICI initiation having the worst outcomes (TR: 0.49; 95% CI: 0.44-0.54; p<0.0001). Increased dose and duration of sISP were associated with a greater survival time loss, such that doses beyond 60 mg/day had a 40% survival time loss and durations longer than 7 days were associated with a 35% survival time loss. These findings were independently validated in the TriNetX cohort. Interpretation: Three key factors are associated with significantly worse OS: sISP near ICI initiation, higher sISP dose, and longer sISP duration, regardless of indication. These findings provide clinicians with valuable information to guide sISP management among ICI recipients. Funding: NIH, USA.
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