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Short Course Rifapentine and Isoniazid for the Preventive Treatment of Tuberculosis(SCRIPT-TB)

Not Applicable
Conditions
Silicosis Tuberculosis
Interventions
Drug: Isoniazid;Rifapentine
Registration Number
NCT03900858
Lead Sponsor
Huashan Hospital
Brief Summary

Tuberculosis (TB) remains the most important infectious disease in the world. Preventive treatment plays an important role in successful control of TB. The investigators' previous study showed a 3-month weekly rifapentine and isoniazid regimen had a high protective efficacy but an unsatisfactory completion rate. Therefore, the investigators suppose that a one-month (12-dose) regimen of rifapentine and isoniazid (1RPT/INH) to be equivalent to a 3-month weekly rifapentine and isoniazid regimen with similar efficacy and higher completion rate. Relevant study is lacking in China where the TB burden is high with the incidence rate of 70/100, 000.

Silicosis is a risk factor of Mycobacterium tuberculosis infection. This is an open-label, non-randomized clinical trial to evaluate the efficacy and safety of the 1RPT/INH to prevent tuberculosis (TB) compared with those who do not receive preventive treatment among silicotic patients.

Detailed Description

Tuberculosis (TB) remains the most important infectious disease in the world. Preventive treatment plays an important role in successful control of TB. For preventive therapy, alternative shortened courses such as 1-month daily rifapentine and isoniazid have been evaluated in HIV-infected individuals for its non-inferiority, safety and convenience compared with traditional monotherapy. And the treatment completion rate is higher. The investigators' previous study showed a 3-month weekly rifapentine and isoniazid regimen had a high protective efficacy but an unsatisfactory completion rate. Therefore, the investigators suppose that a one-month (12-dose) regimen of rifapentine and isoniazid (1RPT/INH) to be equivalent to a 3-month weekly rifapentine and isoniazid regimen with similar efficacy and higher completion rate. Relevant study is lacking in China where the TB burden is high with the incidence rate of 70/100, 000.

Silicosis is a risk factor of Mycobacterium tuberculosis infection. This is an open-label, non-randomized clinical trial to evaluate the efficacy and safety of the 1RPT/INH to prevent tuberculosis (TB) compared with those who do not receive preventive treatment among silicotic patients.

Recruitment & Eligibility

Status
UNKNOWN
Sex
Male
Target Recruitment
566
Inclusion Criteria
  • Individuals with Silica exposure or diagnosed with silicosis;
  • Age between 18 to 65 years;
  • Willing to provide signed informed consent, or parental consent and participant assent.
Exclusion Criteria
  • Clinical or culture confirmed active TB;
  • A history of treatment for > 14 consecutive days with a rifamycin or > 30 consecutive days with INH during the previous 2 years;
  • A documented history of a completing an adequate course of treatment for active TB or latent TB infection;
  • Allergy to Isoniazid, Rifampin, or Rifapentine;
  • Human immunodeficiency virus (HIV) infection;
  • History of hepatitis B/C infection or liver cirrhosis;
  • Serum Aspartic transaminase (AST) or alanine transaminase (ALT) > 2x upper limit of normal or total bilirubin >2.5 mg/dL;
  • Receiving immunosuppressants or biological agents;
  • Life expectancy <3 years;
  • Mental disorder;
  • Participated in other clinical trials in recent three months;
  • Other conditions that investigates consider not suitable for participate.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Isoniazid/ Rifapentine 3 times a weekIsoniazid;RifapentineIntervention:Isoniazid/ Rifapentine 3 times a week given by DOT oral Rifapentine (450mg) plus Isoniazid (400mg) for 12 doses
Primary Outcome Measures
NameTimeMethod
Cumulative rate of culture-confirmed or clinically diagnosed TB disease in participants3 years

Cumulative rate of culture-confirmed or clinically diagnosed TB disease in participants

Secondary Outcome Measures
NameTimeMethod
Percentage of patients with Grade 3 or 4 drug toxicities and deaths associated with 1RPT/INHup to 30 days after the last dose of study drug

Percentage of patients with Grade 3 or 4 drug toxicities and deaths associated with 1RPT/INH

Percentage of participants who complete the treatment regimenEnrollment up to Month 1 (1RPT/INH)

Percentage of participants who complete the treatment regimen

Percentage of participants with drug discontinuation for any reason and due to adverse drug reactions associated with 1RPT/INHup to 30 days after the last dose of study drug

Percentage of participants with drug discontinuation for any reason and due to adverse drug reactions associated with 1RPT/INH

Trial Locations

Locations (1)

Wenling No.1 People's Hospital, Zhejiang

🇨🇳

Taizhou, Zhejiang, China

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