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NCT02758236: TRIPOD

Tuberculosis Research of INA-RESPOND On Drug Resistance

Completed Results posted Last updated 16 May 2024
What this trial tests

trial testing No Intervention in Lung Tuberculosis in 490 participants. Completed in 26 April 2021.

Timeline
13 February 2017
Primary endpoint
30 November 2018
26 April 2021

Quick facts

Lead sponsorIna-Respond
StatusCompleted
Study typeOBSERVATIONAL
Enrollment490
Start date13 February 2017
Primary completion30 November 2018
Estimated completion26 April 2021
Sites7 locations across Indonesia

Drugs / interventions tested

Conditions studied

Sponsor

Ina-Respond — full company profile →

Who can join

18 and older, any sex, with Lung Tuberculosis or MDR TB. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Number of MDR TB Cases Amongst New TB Cases and Previously Treated TB Cases Primary · 2 months after enrollment

AFB smear and GeneXpert were performed at the microbiology laboratory of the study site. Culture and drug susceptibility tests were conducted at appointed National TB Program Reference Laboratories.

GroupValue95% CI
MDR TB Amongst New TB Cases23
MDR TB Amongst Previously Treated TB Cases64
Number of Participants Who Were Cured, Failed, Died, Treatment Completion, and Lost to Follow-up Secondary · 12- 30 months

From 447 subjects with all sputum examination results, only 328 subjects confirmed by bacteriology and the treatment outcome were categorized as followed: 1. Cured 2. Failed 3. Died 4. Treatment completion 5. Lost to follow up

GroupValue95% CI
Treatment Outcome222
Treatment Outcome12
Treatment Outcome31
Treatment Outcome15
Factors for Treatment Success. Secondary · 12-30 months

Protective factors were collected by interview with the subjects. 237 subjects with confirmed bacteriologically and cured or complete treatment were analyzed for this outcome.

Males
GroupValue95% CI
Treatment Success Factors143
Non-Smoking Group
GroupValue95% CI
Treatment Success Factors204
Normal/overweight (BMI>=18)
GroupValue95% CI
Treatment Success Factors125
New TB cases
GroupValue95% CI
Treatment Success Factors146
Lung lesion in CXR > 2 zones
GroupValue95% CI
Treatment Success Factors175
Factors of Treatment Interruption. Secondary · 12-30 months

Risk factors of treatment interruption were collected by interview with the subject. 91 subjects were defined as lost to follow-up or treatment failure or died and analyzed for this outcome.

Male group
GroupValue95% CI
Treatment Interruption56
Non-smoking group
GroupValue95% CI
Treatment Interruption81
Underweight (BMI<18)
GroupValue95% CI
Treatment Interruption51
Previously treated
GroupValue95% CI
Treatment Interruption54
Lung lesion in CXR >2 zones
GroupValue95% CI
Treatment Interruption75
TB Case Category Secondary · 12-30 months

TB category was defined as clinically TB or bacteriologically confirmed TB. 447 subjects with sputum examination were analyzed for this outcome.

GroupValue95% CI
Clinically TB99
Bacteriologically Confirmed TB348
The Performance of AFB and Xpert MTB/RIF Secondary · 12-30 months

Assess the sensitivity and specificity of AFB and Xpert MTB/RIF to culture as gold standard. 312 subjects had positive sputum culture were used for evaluation of sensitivity. Meanwhile, 99 subjects that had no bacterial evidence of MTB infection (AFB, culture, and Xpert negative) and 36 subjects that were only AFB and/or Xpert MTB/RIF positive were used to evaluate the specificity. In total 135 subjects were analyzed to evaluate the specificity.

GroupValue95% CI
Sensitivity AFB269
Specificity AFB117
Sensitivity Xpert MTB/RIF304
Specificity Xpert MTB/RIF99
The Performance of Xpert MTB/RIF Secondary · 12-30 months

Assess the performance of Rifampicin susceptibility results in Xpert MTB/RIF against result in drug susceptible test (DST) as gold standard. 312 subjects had positive sputum culture were used to assess the performance of Xpert MTB/RIF. 196 subjects were sensitive to Rif in Xpert MTB/RIF. While 116 subjects had resistant to Rif in Xpert MTB/RIF.

GroupValue95% CI
DST Sensitive6
DST Resistant2
DST Sensitive165
DST Resistant2
DST Sensitive25
DST Resistant112

Sponsor's own description

This study is a prospective observational cohort study of TB patients who are treated or evaluated at 10 study sites. Patients presenting with cough for 2 weeks or longer with at least one additional TB symptom and a chest X-ray suggestive of TB, will be invited to be enrolled in the study. The signed informed consent will designate their willingness to participate on this study.

Publications & conference data

6 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Xpert Ultra versus Xpert MTB/RIF for pulmonary tuberculosis and rifampicin resistance in adults with presumptive pulmonary tuberculosis.
    Zifodya JS, Kreniske JS, Schiller I, Kohli M, et al · · 2021 · cited 136× · PMID 33616229 · DOI 10.1002/14651858.cd009593.pub5
  2. Performance of Xpert MTB/RIF and sputum microscopy compared to sputum culture for diagnosis of tuberculosis in seven hospitals in Indonesia.
    Karuniawati A, Burhan E, Koendhori EB, Sari D, et al · · 2022 · cited 12× · PMID 36743681 · DOI 10.3389/fmed.2022.909198
  3. Maintaining international research collaborations in the setting of a pandemic: Approach in Indonesia.
    Karyana M, Kosasih H, Neal AT, Lau CY. · · 2021 · cited 3× · PMID 34326986 · DOI 10.7189/jogh.11.03087
  4. Characteristics of Drug-sensitive and Drug-resistant Tuberculosis Cases among Adults at Tuberculosis Referral Hospitals in Indonesia.
    Burhan E, Karyana M, Karuniawati A, Kusmiati T, et al · · 2022 · cited 2× · PMID 36252800 · DOI 10.4269/ajtmh.22-0142
  5. The seroprevalence of anti-Histoplasma capsulatum IgG antibody among pulmonary tuberculosis patients in seven referral tuberculosis hospitals in Indonesia.
    Kusmiati T, Burhan E, Sugiyono RI, Arlinda D, et al · · 2023 · cited 1× · PMID 37729126 · DOI 10.1371/journal.pntd.0011575
  6. Treatment outcomes of pulmonary TB in adults in Indonesia.
    Sugiyono RI, Naysilla AM, Susanto NH, Handayani D, et al · · 2025 · PMID 40092521 · DOI 10.5588/ijtldopen.24.0482

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Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing