Short Course Regimen in Low Risk Active Tuberculosis- a Multicenter, Randomized, Active-controlled, Trial

Trial statusRecruiting
Trial phasePhase 3
Trial typeInterventional
Biological sexAll
Age20-99
SponsorKaohsiung Veterans General Hospital.

About this trial

Tuberculosis remains an important global health problem, and the world is currently not on track to end the TB epidemic by 2030. With the concerted efforts of the government and medical community, the incidence of TB in Taiwan has gradually decreased, however, Taiwan remains an endemic area for TB. The development of efficacious, safe, and shorter treatment regimens could significantly improve treatment completion rate and reduce transmission of TB. The current treatment guidelines for drug-susceptible TB from the World Health Organization (WHO), American Thoracic Society (ATS), United States Center for Diseases Control (U.S. CDC), Infectious Diseases Society of America (IDSA) and European Respiratory Society (ERS) include 2 months of isoniazid, rifampin, pyrazinamide and ethambutol (HREZ), followed by 4 months of isoniazid, rifampin, and ethambutol(HRE). The current treatment regimen requires 6 months of treatment, despite being highly efficacious, requires long duration of treatment. Adherence to treatment is the major barrier which poses a negative impact to TB control, and increased cost to both the patient and the public health system. Developing an efficacious, safe and short treatment regimen can significantly improve TB management and treatment success rates.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

at least one set of sputum specimens is positive for Mycobacterium tuberculosis culture or TB PCR test; or

pathological and histological findings of typical tuberculosis manifestations;

clinical diagnosis and Physician determines the need for complete anti-tuberculosis treatment

Those who have had tuberculosis in the past and have been cured for at least three years can be included

Disqualifiers

The acid-fast smear of sputum or respiratory specimen is strongly positive (≥ 2+)

Chest X-ray or lung computed tomography combined with open lesions

Chest X-ray or lung computed tomography shows extensive lesions and the clinician judges that short-term treatment is not suitable

Simultaneous combination of intrapulmonary and extrapulmonary tuberculosis

Trial design

Design model

Parallel

Treatments tested in this trial

  • 4-month regimen (2HERZ/2HRE)

    Drug

    4-month (2HERZ/2HRE)

  • 6-month (2HERZ/4HRE)

    Drug

    2 months of HREZ followed by 4 months of HR/HRE

Treatment groups

270 Participants
are divided into 2 treatment groups
Group A: Intervention/TreatmentExperimental treatment 1 intervention
Group B: 6-months HERZ (2HERZ/4HRE)Active comparator 1 intervention

Trial outcomes

Primary outcomes

1

TB disease free survival at 12 months post-randomization

Number of participants without TB disease at 12 months after randomization

Time frame
12 months
2

TB disease free survival at 24 months post randomization

Number of participants without TB disease at 24 months after randomization

Time frame
24 months
3

Grade 3-5 adverse events

Development of Grade3-5 adverse events during treatment

Time frame
From enrollment to the end of treatment at 4 or 6 months

Secondary outcomes

1

Early sterilizing activity

The proportion of patients with a negative sputum culture at the end of intensive phase therapy at 8 weeks

Time frame
8 weeks
2

Sputum culture conversion

Time to stable sputum culture conversion

Time frame
4, 8, 12, 16,20,24 weeks,3, 6, 12 and 24 months after treatment
3

All-cause mortality

All-cause mortality at 4 months and 12 months post-treatment assignment

Time frame
4, 12 months
4

Attributable mortality

Attributable mortality at 4 months and 12 months post-treatment assignment

Time frame
4, 12 months

Other outcomes

1

HLA associations with severe drug adverse events

HLA Genotyping to detect predictors for occurrence of severe drug adverse events including skin rash and hepatitis.

Time frame
Upon joining or within two weeks of study entry

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Kaohsiung Veterans General Hospital.

Lead sponsor

Taipei Veterans General Hospital, Taiwan

Collaborator

National Taiwan University Hospital

Collaborator

Chang Gung Memorial Hospital

Collaborator

Far Eastern Memorial Hospital

Collaborator

E-DA Hospital

Collaborator

Kaohsiung Medical University

Collaborator