Novel cancer agents have brought about significant improvements in patient survival while reducing systemic toxicities, when compared with cytotoxic chemotherapy. Therefore, other components of cancer management have come forward, such as supportive care and psychosocial well-being. Most notably, dermatologic adverse events have gained considerable attention due to their high frequency, appearance in functional and cosmetically sensitive areas, and association with symptoms of pain and pruritus—all of which lead to decreased quality of life and inconsistent dosing. In turn, clinical outcomes may be affected with dose modifications, in response to these untoward events.
Additionally, therapies targeting specific pathways and proteins critical to cancer cells are noteworthy for inducing dermatologic adverse events, which may affect up to 90% of treated patients. These toxicities are usually class effects, and may be noted with the use of monoclonal antibodies or small-molecule kinase inhibitors sharing similar targets. These effects may occur at different cycles during therapy, and not all patients develop the archetypal toxicities (Table1).
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