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Trial · NCT02153528

Optimization of the TB Treatment Regimen Cascade

NCT02153528, Phase 3, Completed, Damien Foundation; results first posted 2020-02-13

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Optimization of the TB Treatment Regimen Cascade. Trials, record NCT02153528. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT02153528

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Optimization of the TB Treatment Regimen Cascade
NCT number
NCT02153528
Status
Completed
Phases
Phase 3
Enrollment
701 participants, actual
Lead sponsor
Damien Foundation
Conditions
Tuberculosis, Pulmonary
Interventions
double rimfampicin, Standard TB treatment
First posted
2014-06-03
Last updated
2020-02-13
Results first posted
2020-02-13

Source ClinicalTrials.gov

Registered outcomes9

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryTuberculose Treatment Outcome12 months after end of treatment
Following current WHO guidelines, an adverse treatment outcome is defined as any occurrence of the following: * Relapse: Cured previously from TB or completed treatment for TB and now having bacteriologically positive sputum for TB (at 12 months follow-up or at an earlier time point) * Default: The patient whose treatment was interrupted for ≥ 2 consecutive months. * Failure: Sputum positive for TB at 5 months or later during treatment. In line with current WHO recommendations, patients detected with MDR-TB or rifampicin resistance before this or another outcome applies and switched to the MDR-TB regimen will be excluded from the outcome analysis.18 Failure will also be declared if the regimen has to be changed for at least 2 drugs due to adverse events. * Death: All-cause mortality between case registration and end of TB treatment (related or not to TB or TB treatment)
PrimaryNumber of Participants Who Develop Liver Toxicityuntil month eightGrade 3-4 Liver Toxicity following NIH common toxicity criteria (CTC), including transaminase increases to \>5-20 ULN (grade 3), or \> 20 ULN (grade 4)
SecondaryHigh-level Rifampicin Resistant TB Adverse Treatment Outcomes12 months after end of TB treatment
To assess whether the study regimen also cures high-level rifampicin resistant TB. Adverse treatment outcomes will be described and compared among treatment groups in subgroups defined by initial rifampicin resistance mutations (performed in all patients) detected.
SecondaryNumber of Initial Resistant TB Cases Who Switched to MDR-TB Treatment or Were Curedat two weeks of treatmentTo assess the effectiveness of FDA vital staining versus fever screening for early switch of non-responding rifampicin resistant TB to MDR-TB treatment
Secondarythe Negative Predictive Value of Conversion at 2 Weeks for Relapse.at 2 weeks of treatment
The Negative Predictive value (and 95% CI) of conversion in the intervention arm will be estimated as the % of relapses among those with a minimum 1 log decline in the number of AFB, or who are already negative or only scanty positive on AFB smear (auramine or FDA).
SecondaryProportion of Acquired Rifampicin Resistance Among Failures and Relapses12 months after end of TB treatmentnumber of failure / relapse cases without mutation detected at diagnosis as the denominator and comparing intervention and control arms.
SecondaryArea Under the Curve of Auramine Resp. FDA at 2 Weeks to Predict Adverse Treatment Outcome at 1 Year After Treatment CompletionAuramine/FDA at 2 weeks and adverse treatment outcome 1 year after treatment completionArea under the ROC curve (AUC) to predict adverse treatment outcome. The X-axis represents the 1-specificity, the Y-axis represents sensitivity. The AUC is estimated with 95% confidence interval.
SecondaryWeight Gainuntil end of treatment (month eight)Weight gain from baseline until end-of-treatment comparison between both treatment arms.
SecondaryFever Resolutionafter 2 weeks of treatmentComparison of fever resolution after 2 weeks of treatment between both treatment arms.

Outcomes9

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYTuberculose Treatment Outcome12 months after end of treatment
Intention-to-treat analysis. Additional 4 subjects were removed from the ITT analysis because they switched to MDR regimen (3 in control arm, 1 in intervention arm). 4 subjects (intervention arm) were removed from the ITT analysis because they were enrolled twice.
ParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYNumber of Participants Who Develop Liver Toxicityuntil month eight
One participant was allocated to double rifampicin arm but received standard TB treatment, and was analysed in the standard TB treatment arm.Two participants were deleted from analysis because they had grade 3 liver toxicity at baseline and 6 participants were deleted because they did not have any follow-up ALT values.
ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYHigh-level Rifampicin Resistant TB Adverse Treatment Outcomes12 months after end of TB treatment
ITT analysis population. Compared to analysis population of primary objective - TB treatment outcome, 24 subjects were excluded from this analysis due to missing or negative sequencing results (8 in control group, 16 in intervention group).
ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Initial Resistant TB Cases Who Switched to MDR-TB Treatment or Were Curedat two weeks of treatment7 initial resistant cases (5 in control group and 2 in intervention group).ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYthe Negative Predictive Value of Conversion at 2 Weeks for Relapse.at 2 weeks of treatmentITT analysis. This analysis only includes participants in the intervention arm who are negative on auramine smear resp. FDA smear at 2 weeks.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYProportion of Acquired Rifampicin Resistance Among Failures and Relapses12 months after end of TB treatmentITT analysis. This analysis only includes failure / relapse cases without mutation detected at diagnosisParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYArea Under the Curve of Auramine Resp. FDA at 2 Weeks to Predict Adverse Treatment Outcome at 1 Year After Treatment CompletionAuramine/FDA at 2 weeks and adverse treatment outcome 1 year after treatment completionno unit is used for AUROCNUMBER
SECONDARYWeight Gainuntil end of treatment (month eight)kgMEAN
SECONDARYFever Resolutionafter 2 weeks of treatmentTotal of participants with fever at baseline.ParticipantsCOUNT_OF_PARTICIPANTS

Results by group32

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Tuberculose Treatment OutcomeStandard TB TreatmentDefault8Participants
Tuberculose Treatment OutcomeDouble RimfampicinDefault8Participants
Tuberculose Treatment OutcomeStandard TB TreatmentDied11Participants
Tuberculose Treatment OutcomeDouble RimfampicinDied5Participants
Tuberculose Treatment OutcomeStandard TB TreatmentFailure8Participants
Tuberculose Treatment OutcomeDouble RimfampicinFailure12Participants
Tuberculose Treatment OutcomeStandard TB TreatmentCompleted6Participants
Tuberculose Treatment OutcomeDouble RimfampicinCompleted3Participants
Tuberculose Treatment OutcomeStandard TB TreatmentCured310Participants
Tuberculose Treatment OutcomeDouble RimfampicinCured319Participants

Participant flow6

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDStandard TB Treatment348
Overall StudySTARTEDDouble Rimfampicin353
Overall StudyCOMPLETEDStandard TB Treatment348
Overall StudyCOMPLETEDDouble Rimfampicin353
Overall StudyNOT COMPLETEDStandard TB Treatment0
Overall StudyNOT COMPLETEDDouble Rimfampicin0

Adverse events40

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
seriousCardiopulmonary failureCardiac disordersStandard TB Treatment1348
seriousCardiopulmonary failureCardiac disordersDouble Rimfampicin1353
seriousAbdominal painGastrointestinal disordersStandard TB Treatment1348
seriousAbdominal painGastrointestinal disordersDouble Rimfampicin0353
seriousVomitingGastrointestinal disordersStandard TB Treatment2348
seriousVomitingGastrointestinal disordersDouble Rimfampicin0353
seriousAstheniaGeneral disordersStandard TB Treatment0348
seriousAstheniaGeneral disordersDouble Rimfampicin1353
seriousHepatitisHepatobiliary disordersStandard TB Treatment2348
seriousHepatitisHepatobiliary disordersDouble Rimfampicin1353

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityStandard TB Treatment17348
Total, all-cause mortalityDouble Rimfampicin12353
Total, other adverse eventsStandard TB Treatment0348
Total, other adverse eventsDouble Rimfampicin0353
Total, serious adverse eventsStandard TB Treatment24348
Total, serious adverse eventsDouble Rimfampicin13353

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons7

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
Standard TB Treatment vs Double Rimfampicin: Number of Initial Resistant TB Cases Who Switched to MDR-TB Treatment or Were CuredTrial comparisons
Standard TB Treatment vs Double Rimfampicin: Number of Participants Who Develop Liver ToxicityTrial comparisons
Standard TB Treatment vs Double Rimfampicin: Proportion of Acquired Rifampicin Resistance Among Failures and RelapsesTrial comparisons
Standard TB Treatment vs Double Rimfampicin: deaths from any causeTrial comparisons
Double Rifampicin Arm Negative on Auramine Smear vs Double Rifampicin Group Negative on FDA Smear: the Negative Predictive Value of Conversion at 2 Weeks for Relapse.Trial comparisons
Standard TB Treatment vs Double Rimfampicin: Fever ResolutionTrial comparisons
Standard TB Treatment vs Double Rimfampicin: serious adverse eventsTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

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