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Temozolomide-related infections: review of the literature
M C Kizilarslanoglu1, S Aksoy, N O Yildirim
1Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey.
Abstract:
Temozolomide (TMZ) is an alkylating, antineoplastic agent which is being used to treat cases of refractory anaplastic astrocytoma, newly-diagnosed glioblastoma multiforme and metastatic melanoma. TMZ causes lymphopenia and T-cell dysfunction in most of the patients. Related to this toxicity several opportunistic infections have been reported in the literature, but were not well characterized. To further investigate this topic, relevant English language studies were identified through Medline. There were 36 previously reported cases of infection related to TMZ. The median age of the cases was 55 years (range 33-73). The most frequently experienced infections were mucocutaneous candidiasis (n=11; 28.2%), herpes zoster (n=5; 12.8%), herpes simplex virus (n=4; 10.2%), cytomegalovirus (CMV) (n=5; 12.8%), pneumocystis carinii pneumonia (PCP) (n=3; 7.6%), hepatitis B virus (HBV) (n=2; 5.1%) and others (n=9; 23%). Mortality rates were 28.5% (n=4/14) in patients with reported outcome. In this survey, about one third of the TMZ-related severe infections resulted in death. Patients treated with TMZ are at increased risk for opportunistic viral and bacterial infection. Therefore, close monitoring of patients receiving TMZ for opportunistic infections should be carried out.
Insights
Temozolomide (TMZ) treatment can lead to serious opportunistic infections due to T-cell dysfunction. Close monitoring is crucial as these infections, including candidiasis and viral reactivation, carry a significant mortality risk.
Area of Science:
- Oncology
- Infectious Diseases
- Pharmacology
Background:
- Temozolomide (TMZ) is an antineoplastic agent used for brain tumors and melanoma.
- TMZ can cause lymphopenia and T-cell dysfunction, increasing infection risk.
- Opportunistic infections associated with TMZ are not well-characterized.
Purpose of the Study:
- To investigate and characterize opportunistic infections in patients treated with Temozolomide.
- To analyze the types, frequency, and outcomes of these infections.
Main Methods:
- A literature review was conducted using Medline to identify relevant English-language studies.
- 36 previously reported cases of infection related to TMZ were analyzed.
- Data on patient demographics, infection types, and outcomes were compiled.
Main Results:
- The most common infections included mucocutaneous candidiasis (28.2%), herpes zoster (12.8%), and cytomegalovirus (CMV) (12.8%).
- Other significant infections were herpes simplex virus (10.2%), Pneumocystis carinii pneumonia (PCP) (7.6%), and hepatitis B virus (HBV) (5.1%).
- The mortality rate for reported outcomes was 28.5%, with one-third of severe infections resulting in death.
Conclusions:
- Patients receiving Temozolomide are at an elevated risk for opportunistic viral and bacterial infections.
- Close monitoring for opportunistic infections is essential in patients undergoing TMZ therapy.
- Awareness of these risks can guide clinical management and improve patient outcomes.
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