Optimizing(O) RIfapentine-based(RI) Regimen and shortENing(EN) the Treatment of Drug-sensitive Tuberculosis(T)

Inclusion Criteria: * Age between 18 to 60 years; * Weight between 40 to 80 kg; * Individuals with smear-positive pulmonary tuberculosis and sensitive to rifampicin ; * Willing to provide signed informed consent, or parental consent and participant assent. * If you are a non-menopausal woman, agree to use or have used effective contraception during treatment. Exclusion Criteria: * Combined extrapulmonary tuberculosis; * Patients with extensive lesion (extent of disease greater than 50% or cavity size greater than 4cm) ; * Individuals will be excluded from enrollment if, at the time of enrollment, their M. tuberculosis isolate is already known to be resistant to any one or more of the following: rifampin, isoniazid, pyrazinamide, ethambutol, or fluoroquinolones; * Alcohol abuse#drinking more than 64g of ethanol a day for male, 42g for female#; * Hemoglobin is less than 70g/L or platelet is less than 100\*10\^9/L; * Patients with impaired liver function (hepatic encephalopathy, ascites; total bilirubin is higher than the upper limit of normal; Alanine aminotransferase or aspartate aminotransferase is higher than the upper limit of normal); * Blood creatinine is more than 1.5 times the upper limit of normal; * More than five days of systemic treatment with any one or more of the following drugs within 6 months preceding initiation of study drugs: isoniazid, rifampin, rifabutin, rifapentine, ethambutol, pyrazinamide, kanamycin, amikacin, streptomycin, capreomycin, moxifloxacin…