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Rare Adverse Events with Programmed Death-1 and Programmed Death-1 Ligand Inhibitors: Justification and Rationale for a Systematic Review

Authors
  • Smith, Caleb J.1
  • Almodallal, Yahya2
  • Jatoi, Aminah2
  • 1 Mayo Clinic, Rochester, MN, USA , Rochester (United States)
  • 2 Mayo Clinic, 200 First Street SW, Rochester, MN, 55902, USA , Rochester (United States)
Type
Published Article
Journal
Current Oncology Reports
Publisher
Springer-Verlag
Publication Date
May 26, 2021
Volume
23
Issue
7
Identifiers
DOI: 10.1007/s11912-021-01089-9
Source
Springer Nature
Keywords
License
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Abstract

PurposeImmune checkpoint inhibitors are a new class of cancer drug that spawn unusual adverse events that generate unusual and sometimes unexpected adverse events. Despite databases that track such adverse events, there remains a need to also generate systematic reviews to capture side effects from such agents.FindingsWe generated a systematic compendium of adverse event reports. Extensively reviewing the published literature of case reports and case series, we relied on the peer process to compile a resource for clinicians of rare adverse events associated with checkpoint inhibitors. We used this compendium as a platform to provide broad-based comments on the role of systematic reviews in gathering such adverse event data. This approach generated 265 types of rare adverse events that had been reported, the most frequent of which were autoimmune type I diabetes (n = 62), pneumonitis (n = 40), myocarditis (n = 39), and colitis (n = 36). More unusual adverse events were also catalogued. Some adverse events that initially seemed unusual turned out to be more frequently reported over time and thus lost their novelty—an important point which provides context for how adverse events should be viewed when new drugs become available. Additionally, in contrast to such resources as the FDA Adverse Event Reporting System (FAERS), this systematic review relied on peer-reviewed data—another important point which adds strength to such systematic reviews.SummaryThis report provides a compendium of rare and usual adverse events, serves as a resource to cancer clinicians, and appears to be justified based on the reported findings.

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