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Treatment-related adverse events as surrogate to response rate to immune checkpoint blockade.


ABSTRACT: BACKGROUND:Immune checkpoint blockade (ICB) brings hope to many late-stage cancer patients yet its marker for response remains elusive. METHODS:We developed a hypothesis that treatment-related adverse events (TrAEs) could predict objective response rate (ORR) to ICB. We plotted ORR against corresponding any and grade 3 to 5 (G3-5) TrAEs across a variety of cancer types by performing a meta-analysis using linear regression. RESULTS:We identified 113 eligible studies encompassing 25 types of malignancies that were treated with ICB or ICB-based regimes. A significant linear correlation was observed for any and severe TrAEs, respectively. The correlation coefficient was 0.57 (r?=?0.324) for any TrAE and 0.61 (r?=?0.37) for G3-5 TrAE. For melanoma, the correlation coefficient was 0.81 (r?=?0.57) for any TrAE and 0.65 (r?=?0.42) for G3-5 TrAEs. For RCC, the correlation coefficient was 0.86 (r?=?0.74) for any TrAE and 0.91 (r?=?0.83) for G3-5 TrAE. For NSCLC, the correlation coefficient was 0.55 (r?=?0.3) for any TrAE and 0.74 (r?=?0.86) for G3-5 TrAE. For UC, the correlation coefficient was 0.47 (r?=?0.68) for any TrAE and 0.27 (r?=?0.52) for G3-5 TrAE, yet the correlation was insignificant for severe AEs. CONCLUSION:Our findings suggest that over half of ICB responses could be reflected by any adverse events and ?60% of responses could be reflected by severe AEs. Further validation is needed in individual trials.

SUBMITTER: Shen Y 

PROVIDER: S-EPMC7489750 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Treatment-related adverse events as surrogate to response rate to immune checkpoint blockade.

Shen Yanyun Y   Chen Yunfeng Y   Wang Duoqin D   Zhu Zhidong Z  

Medicine 20200901 37


<h4>Background</h4>Immune checkpoint blockade (ICB) brings hope to many late-stage cancer patients yet its marker for response remains elusive.<h4>Methods</h4>We developed a hypothesis that treatment-related adverse events (TrAEs) could predict objective response rate (ORR) to ICB. We plotted ORR against corresponding any and grade 3 to 5 (G3-5) TrAEs across a variety of cancer types by performing a meta-analysis using linear regression.<h4>Results</h4>We identified 113 eligible studies encompas  ...[more]

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