Efficacy and safety of pyruvate kinase activator in treating hemolytic anemias: a systematic review
Abstract
ABSTRACT Introduction Pyruvate kinase (PK) is an important glycolytic enzyme responsible for erythrocytic ATP production. PK allosteric activators have been shown to increase ATP and reduce 2,3-disphosphoglycerate among red blood cells leading to improved oxygen affinity, sickling, and hemolysis. In this systematic review, we aim to evaluate the efficacy and safety of PK activators in hemolytic anemias. Methods This study was conducted following the PRISMA guidelines. A literature search was conducted using relevant keywords over PubMed/Medline, Google Scholar, Cochrane Library, and clinicaltrial.gov, till 29 September 2024. Relevant data was extracted into a spreadsheet and synthesized qualitatively. Results The literature search yielded 7,153 results, with seven studies ultimately included in the review. These studies involved 206 patients, 166 of whom received mitapivat and the rest received placebo. Hemoglobin response was achieved by 38.0% to 80.0% of participants receiving mitapivat, with an average increase of 0.4 to 1.7 g/dL. Most studies reported improvements in bilirubin, lactate dehydrogenase, haptoglobin, and reticulocyte levels. Adverse events (AEs) were experienced by 93.2% of participants, with rates of 93.97% and 89.7% in the intervention and control groups, respectively. However, most AEs were mild and transient, and 23.4% were graded as 3 or higher. Conclusions In this study, PK activators, particularly mitapivat, demonstrated promising efficacy and safety…
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. Reported size: 206 participants or records.
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