Dose-related periorbital edema following sorafenib in a patient with acute myeloid leukemia
Craig W Freyer1, James K Mangan2
1Department of Pharmacy Services, Hospital of the University of Pennsylvania, Philadelphia, PA, USA.
Abstract:
We describe a case of dose-related periorbital edema in a patient with FLT3-mutated acute myeloid leukemia taking sorafenib and voriconazole that resolved following sorafenib dose reduction. We hypothesize that the mechanism of this adverse event may be related to the inhibition of platelet-derived growth factor receptor (PDGFR) by sorafenib. Clinicians should be aware of this possible dose-related adverse event and the potential role of sorafenib dose reduction when on concurrent voriconazole.
Insights
A patient with FLT3-mutated acute myeloid leukemia experienced periorbital edema while taking sorafenib and voriconazole. This dose-related side effect resolved after reducing the sorafenib dose, suggesting a link to platelet-derived growth factor receptor inhibition.
Area of Science:
- Hematology
- Pharmacology
- Oncology
Background:
- Acute myeloid leukemia (AML) is a heterogeneous hematologic malignancy.
- FLT3 mutations are common in AML and are targeted by specific therapies.
- Sorafenib and voriconazole are medications used in cancer treatment and antifungal management, respectively.
Observation:
- A case study detailing a patient with FLT3-mutated AML.
- The patient developed periorbital edema, a dose-related adverse event.
- This edema occurred during concurrent treatment with sorafenib and voriconazole.
Findings:
- Sorafenib is a tyrosine kinase inhibitor that can affect various cellular pathways.
- Platelet-derived growth factor receptor (PDGFR) inhibition by sorafenib is a potential mechanism for edema.
- Dose reduction of sorafenib led to the resolution of periorbital edema.
Implications:
- Clinicians should monitor for periorbital edema in patients on sorafenib, especially with voriconazole.
- Sorafenib dose reduction may be a viable strategy to manage this adverse event.
- Understanding drug interactions and mechanisms of adverse events is crucial for optimizing cancer therapy.
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