Leukotriene A4 Hydrolase Stratified Trial of Adjunctive Corticosteroids for HIV-uninfected Adults with Tuberculous Meningitis (NCT03100786)High-dose Rifampicin for the Treatment of Tuberculous Meningitis: A Dose-finding Study (NCT02169882)Study Of the Long-Term Outcome of Tuberculous Meningitis in Vietnamese Adults Treated with Adjunctive Dexamethasone (NCT01317654)The Relationships Between Gene Polymorphisms of LTA4H and Dexamethasone Treatment for Tuberculous Meningitis (NCT02588196)Adjunctive Corticosteroids for Tuberculous Meningitis in HIV-infected Adults (NCT03092817). This evidence concerns the gene LTA4H and meningeal tuberculosis.