An International Multicentre Controlled Clinical Trial to Evaluate 1200mg and 1800mg Rifampicin Daily for Four Months in the Reduction of the Duration of Standard Treatment of Pulmonary Tuberculosis
试验速览
- 阶段
- 3 期
- 状态
- 已完成
- 入组人数
- 672
- 试验地点
- 6
- 主要终点
- The occurrence of grade 3 or 4 adverse events at any time during chemotherapy.
研究概览
简要总结
In this trial, the investigators are assessing whether giving an increased dose of rifampicin to patients receiving the standard treatment for tuberculosis is safe and, when given for 4 months only, will also result in greater and faster killing of the tubercle bacillus in the lungs and result in relapse rates similar to those found in the World Health Organisation (WHO) recommended standard 6 month regimen.
详细描述
Type of design An open-label 3-arm trial to compare a standard 6-month control regimen with two 4-month treatment regimens for the treatment of tuberculosis (TB).
Disease/patients studied The trial will include 654 patients newly diagnosed with pulmonary TB with sputum positive or negative for TB on microscopy but with a positive result on a GeneXpert Test with organisms fully sensitive to rifampicin
The treatment regimens - Control and Experimental
Patients enrolled in the trial will be randomly allocated to receive one of the following three chemotherapy treatment regimens:
- Control regimen (R10): The standard regimen of isoniazid, pyrazinamide and ethambutol plus 10 mg/kg rifampicin for the initial 8 weeks, followed by isoniazid and rifampicin (at the same dose size) for an additional 4 months (2HRZE/4HR)A.
- Study regimen 1(SR1): 2 months of daily ethambutol, isoniazid, rifampicin, and pyrazinamide followed by 2 months of daily isoniazid and rifampicin. A supplement of either 450 mg (weight bands 35-39kg and 40-54kg) or 600mg (weight band 55-69kg and 70 and more kg) of rifampicin will be given throughout the four months (2EHR 1200Z/2HR1200)B.
- Study regimen 2(SR2): 2 months of daily ethambutol, isoniazid, rifampicin, and pyrazinamide followed by 2 months of daily isoniazid and rifampicin. A supplement of either 450 mg (weight bands 35-39kg and 40-54kg) or 600mg (weight band 55-69kg and 70 and more kg) of rifampicin will be given throughout the four months (2EHR1800Z/2HR1800)C.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •GeneXpert sputum positive, rifampicin susceptible, newly diagnosed pulmonary tuberculosis will be included even if they are microscopy negative.
- •No previous anti-tuberculosis chemotherapy.
- •Patients ≥ 18 years
- •Consent to participation in the trial and to HIV testing
- •Provide informed consent.
- •Patient has a stable home address within easy reach of the treatment facility and likely to remain there for the next 18 months.
- •Pre-menopausal women must be using a barrier form of contraception or be surgically sterilised or have an Intrauterine Contraceptive Device (IUCD) in place for the duration of the treatment phase
排除标准
- •Patients with rifampicin resistance identified by GeneXpert or by direct susceptibility testing (late exclusions).
- •Has any condition that may prove fatal during the study period.
- •Has TB meningitis.
- •Has pre-existing non-tuberculous disease likely to prejudice the response to, or assessment of, treatment e.g. insulin-dependent diabetes, liver or kidney disease, blood disorders, peripheral neuritis, and severe thrombocytopenia, rash, increase of bilirubin and other diseases that are likely to be contraindicated with rifampicin
- •Is female and known to be pregnant, or breast feeding.
- •Is suffering from a condition likely to lead to uncooperative behaviour such as psychiatric illness or alcoholism.
- •Has contraindications to any medications in the study regimens
- •Is HIV positive
- •Haemoglobin <7g/l
- •Aspartate Aminotransferase (AST) or Alanine Aminotransferase (ALT) > 5 times the upper limit of normal (ULN) for that laboratory
- •Creatinine clearance (CrCl) of < 30mls/min. Calculated as CrCl (mL/min) = N x [140-age (years)] x weight (kg) Serum creatinine (micromol/L) Where N = 1.23 males, 1.04 females
- •Has glucose in urine
- •Weight < 35kg
研究组 & 干预措施
Rifampicin 150mg (Control)
2 months daily 4FDC - Rifampicin 150mg, Isoniazid 75mg, Ethambutol 275mg and Pyrazinamide 400mg (intensive phase); followed by 4 months daily 2FDC - Rifampicin 150mg and Isoniazid 75mg (continuous phase)
干预措施: Rifampicin (Drug)
Rifampicin 150mg (Control)
2 months daily 4FDC - Rifampicin 150mg, Isoniazid 75mg, Ethambutol 275mg and Pyrazinamide 400mg (intensive phase); followed by 4 months daily 2FDC - Rifampicin 150mg and Isoniazid 75mg (continuous phase)
干预措施: Isoniazid (Drug)
Rifampicin 150mg (Control)
2 months daily 4FDC - Rifampicin 150mg, Isoniazid 75mg, Ethambutol 275mg and Pyrazinamide 400mg (intensive phase); followed by 4 months daily 2FDC - Rifampicin 150mg and Isoniazid 75mg (continuous phase)
干预措施: Ethambutol (Drug)
Rifampicin 150mg (Control)
2 months daily 4FDC - Rifampicin 150mg, Isoniazid 75mg, Ethambutol 275mg and Pyrazinamide 400mg (intensive phase); followed by 4 months daily 2FDC - Rifampicin 150mg and Isoniazid 75mg (continuous phase)
干预措施: Pyrazinamide (Drug)
Rifampicin 1200mg (Regimen 1)
2 months daily 4FDC - high dose Rifampicin 1200mg, Isoniazid 75mg, Ethambutol 275mg and Pyrazinamide 400mg (intensive phase); followed by 2 months daily 2FDC - high dose Rifampicin 1200mg and Isoniazid 75mg (continuous phase)
干预措施: Rifampicin (Drug)
Rifampicin 1200mg (Regimen 1)
2 months daily 4FDC - high dose Rifampicin 1200mg, Isoniazid 75mg, Ethambutol 275mg and Pyrazinamide 400mg (intensive phase); followed by 2 months daily 2FDC - high dose Rifampicin 1200mg and Isoniazid 75mg (continuous phase)
干预措施: Isoniazid (Drug)
Rifampicin 1200mg (Regimen 1)
2 months daily 4FDC - high dose Rifampicin 1200mg, Isoniazid 75mg, Ethambutol 275mg and Pyrazinamide 400mg (intensive phase); followed by 2 months daily 2FDC - high dose Rifampicin 1200mg and Isoniazid 75mg (continuous phase)
干预措施: Ethambutol (Drug)
Rifampicin 1200mg (Regimen 1)
2 months daily 4FDC - high dose Rifampicin 1200mg, Isoniazid 75mg, Ethambutol 275mg and Pyrazinamide 400mg (intensive phase); followed by 2 months daily 2FDC - high dose Rifampicin 1200mg and Isoniazid 75mg (continuous phase)
干预措施: Pyrazinamide (Drug)
Rifampicin 1800mg (Regimen 2)
2 months daily 4FDC - high dose Rifampicin 1800mg, Isoniazid 75mg, Ethambutol 275mg and Pyrazinamide 400mg (intensive phase); followed by 2 months daily 2FDC - high dose Rifampicin 1800mg and Isoniazid 75mg (continuous phase)
干预措施: Rifampicin (Drug)
Rifampicin 1800mg (Regimen 2)
2 months daily 4FDC - high dose Rifampicin 1800mg, Isoniazid 75mg, Ethambutol 275mg and Pyrazinamide 400mg (intensive phase); followed by 2 months daily 2FDC - high dose Rifampicin 1800mg and Isoniazid 75mg (continuous phase)
干预措施: Isoniazid (Drug)
Rifampicin 1800mg (Regimen 2)
2 months daily 4FDC - high dose Rifampicin 1800mg, Isoniazid 75mg, Ethambutol 275mg and Pyrazinamide 400mg (intensive phase); followed by 2 months daily 2FDC - high dose Rifampicin 1800mg and Isoniazid 75mg (continuous phase)
干预措施: Ethambutol (Drug)
Rifampicin 1800mg (Regimen 2)
2 months daily 4FDC - high dose Rifampicin 1800mg, Isoniazid 75mg, Ethambutol 275mg and Pyrazinamide 400mg (intensive phase); followed by 2 months daily 2FDC - high dose Rifampicin 1800mg and Isoniazid 75mg (continuous phase)
干预措施: Pyrazinamide (Drug)
结局指标
主要结局
The occurrence of grade 3 or 4 adverse events at any time during chemotherapy.
时间窗: 18 months
the primary outcome measure is the combined rate of failure at the end of treatment and relapse during the subsequent 12 months in smear positive patients in the modified intent to treat population.
时间窗: 18 months
次要结局
- Time to unfavourable outcome in the modified intent-to-treat and per protocol sputum smear microscopy-positive population.(18 Months)
- Combined unfavourable endpoint (rate of failure at the end of treatment and relapse) measured 18 months from randomisation in the Xpert MTB/RIF positive (i) modified intent-to-treat and (ii) per protocol populations(18 months)
- Sputum cultures positive for M.tuberculosis at 8 and 12 weeks from randomisation.(18 months)
- Per protocol analysis of the primary efficacy outcome (the combined rate of failure at the end of treatment and relapse during the subsequent 12 months in smear positive patients)(18 months)
- Any adverse event, up to one month after completion of treatment, graded according to the DAIDS criteria(1 month after end of treatment (7 months (Control), 5 months (Study regimens) ))