Efficacy of Magnesium Supplementation in Cancer Patients Developing Hypomagnesemia Due to Anti-EGFR Antibody: A Systematic Review
Abstract
Background/Aim
Hypomagnesemia is a common side effect of anti-epidermal growth factor receptor (EGFR) antibodies, which may lead to arrhythmia. However, there are no evidence-based guidelines for magnesium (Mg) supplementation in the management of hypomagnesemia in patients with anti-EGFR antibodies. Therefore, we performed a systematic review to address clinical questions regarding these cancer patients.
Materials and Methods
Three electronic databases were searched for articles published until June 18, 2021. The main outcomes used were "anti-EGFR antibody" and "hypomagnesemia".
Results
After screening 78 references in PubMed, Cochrane Library, and ICHUSHI-web databases, three studies were included in the review. One study revealed the effectiveness of Mg supplementation in the management of hypomagnesemia in patients receiving cetuximab. However, no studies have investigated whether correcting hypomagnesemia can lead to the suppression of arrhythmias as a clinical outcome.
Conclusion
Weak evidence suggests that Mg supplementation, as a preventive measure when developing hypomagnesemia following the initiation of anti-EGFR antibody therapy, may prevent the worsening of hypomagnesemia, and subsequently prevent associated arrhythmia occurrence.
How strong is the evidence?
Evidence Hub reads this as a systematic review, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid.
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