[Cutaneous side effects associated with epidermal growth factor receptor and tyrosine kinase inhibitors]
M Deslandres1, V Sibaud, C Chevreau
1Institut Claudius Regaud, Centre de Lutte Contre le Cancer, Département d''ncologie Médicale, 20-24 rue du pont Saint Pierre 31052 Toulouse, France.
Abstract:
Basic knowledge in oncogenesis has dramatically improved in the last decade providing more recently new drugs for cancer treatment. These new targeted compounds usually act by inhibiting tyrosine kinase activity of one or more than one proteins involved in tumor growth and cancer progression. This pharmacological effect is the result of monoclonal or small molecule action. Many of these new compounds have cutaneus secondary effects. Cancer patients are now facing new toxicity, essentially skin toxicity. The cutaneous side effects observed in the patients depend on the drug. For example, EGFR inhibitors induce acneiform rash whereas multitarget tyrosine kinase inhibitors induce different more complex effects which physiopatholgy is not yet completely understood. The secondary effects that are frequently observed are described is this article. A better clinical long term management of these effects is a clear medical need as of these effects could be surrogate markers of drug efficacy.
Insights
New targeted cancer drugs, like tyrosine kinase inhibitors, cause unique skin toxicities. Understanding and managing these side effects is crucial for patient care and may indicate treatment effectiveness.
Area of Science:
- Oncology
- Dermatology
- Pharmacology
Background:
- Recent advances in oncogenesis have led to targeted cancer therapies.
- These therapies often involve tyrosine kinase inhibitors (TKIs), acting as monoclonal or small molecule drugs.
- A significant challenge is the emergence of novel cutaneous toxicities associated with these treatments.
Purpose of the Study:
- To describe the frequently observed skin side effects of new targeted cancer drugs.
- To highlight the need for improved clinical management of these toxicities.
- To explore the potential of skin side effects as surrogate markers for drug efficacy.
Main Methods:
- Review of literature on targeted cancer therapies and their dermatological side effects.
- Categorization of side effects based on drug class (e.g., EGFR inhibitors, multi-target TKIs).
- Clinical observation and reporting of common cutaneous manifestations.
Main Results:
- EGFR inhibitors commonly cause acneiform rash.
- Multi-target TKIs induce diverse and complex skin toxicities with incompletely understood pathophysiology.
- Observed side effects vary depending on the specific drug administered.
Conclusions:
- Targeted cancer therapies present unique dermatological challenges requiring specialized management.
- Effective long-term clinical management of these skin toxicities is a significant unmet medical need.
- Cutaneous side effects may serve as valuable indicators of treatment response and drug efficacy.
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