What question did this study set out to answer?

This research investigates whether adding L-glutamine to hydroxyurea improves outcomes in sickle cell anemia.

The GLOBE Trial: Efficacy and Safety of L-Glutamine Plus Hydroxyurea Versus Hydroxyurea Alone in Sickle Cell Anemia – A Double-Blind, Randomized Study

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Double-blind trial demonstrates L-glutamine and hydroxyurea reduce complications in sickle cell anemia, suggesting improved treatment options.

This research investigates whether adding L-glutamine to hydroxyurea improves outcomes in sickle cell anemia.
Conducted a double-blind, randomized trial
Compared efficacy of L-glutamine plus hydroxyurea to hydroxyurea alone
Measured outcomes including VOCs, ACS, hospitalizations, hemoglobin, and hemolysis markers
Significantly reduced VOCs, ACS, and hospitalizations with the combination treatment
Improved hemoglobin levels and hemolysis markers
No added toxicity observed from the combination therapy

Shakibazad et al. (2026) studied this question.

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Double-blind trial demonstrates L-glutamine and hydroxyurea reduce complications in sickle cell anemia, suggesting improved treatment options.