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Published on: August 27, 2019
Rash to the mTOR inhibitor everolimus: systematic review and meta-analysis
Marigdalia K Ramirez-Fort1, Emily C Case, Alyx C Rosen
1*Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA †Dermatology Service, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York §Stony Brook University Medical School, Medical Oncology, Stony Brook, NY ‡Department of Dermatology, Hospital Santa Casa de Misericórdia de Curitiba/PUC-PR, Curitiba, PR, Brazil.
Background:
Everolimus is a mammalian target of rapamycin (mTOR) inhibitor approved for treatment of renal cell carcinoma, subependymal giant cell astrocytoma, breast cancer, and progressive neuroendocrine tumors of pancreatic origin. Its use may be hindered because of adverse events, including rash. The reported incidence and risk of a rash to everolimus varies widely and has not been closely investigated. Therefore, we conducted a systematic review and meta-analysis of the literature to determine the incidence and risk of developing a rash.
Methods:
We searched PubMed and Web of Science databases and abstracts presented at the American Society of Clinical Oncology from 1998 to December 2011 using the keyword "everolimus" to identify relevant clinical trials. Eligible studies included prospective phase II and III clinical trials of cancer patients on 10 mg of everolimus daily with available data on incidence of rash. The summary incidence and relative risk (RR) of rash were calculated using either the random-effects or fixed-effects model, depending on the heterogeneity of the constituent studies.
Results:
A total of 2242 patients with various malignancies from 13 clinical trials were included in the analysis. The summary incidences of all-grade and high-grade rash in patients on everolimus were 28.6% [95% confidence interval (CI), 20.8-38.0] and 1.0% (95% CI, 0.6-1.8), respectively. Everolimus was associated with a statistically significant increased risk of all-grade rash (RR=3.853, 95% CI, 2.470-6.013, P=0.000), but the RR for high-grade rash (RR=2.997, 95% CI, 0.633-14.185) was not statistically significant, with a P value of 0.166.
Conclusions:
Everolimus is associated with a significant risk of developing a rash. Management of rash to everolimus is critical to prevent dose modifications and decreased quality of life, both of which can negatively affect overall clinical outcomes.
Insights
Everolimus, an mTOR inhibitor, significantly increases the risk of developing a rash in cancer patients. Effective rash management is crucial for maintaining treatment adherence and quality of life.
Area of Science:
- Oncology
- Pharmacology
- Clinical Trials
Background:
- Everolimus is an mTOR inhibitor used for various cancers.
- Rash is a common adverse event associated with everolimus.
- The incidence and risk of everolimus-induced rash require further investigation.
Purpose of the Study:
- To systematically review and meta-analyze the literature.
- To determine the incidence and risk of rash in patients treated with everolimus.
Main Methods:
- Systematic review and meta-analysis of prospective phase II and III clinical trials.
- Searched PubMed, Web of Science, and ASCO abstracts (1998-2011).
- Included 2242 patients across 13 trials receiving 10 mg of everolimus daily.
Main Results:
- The incidence of all-grade rash was 28.6% (95% CI, 20.8-38.0).
- The incidence of high-grade rash was 1.0% (95% CI, 0.6-1.8).
- Everolimus significantly increased the risk of all-grade rash (RR=3.853, P=0.000).
Conclusions:
- Everolimus is associated with a significant risk of rash.
- Rash management is critical for preventing dose modifications.
- Effective management improves quality of life and clinical outcomes.
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