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Tuberculosis, Multidrug-ResistantPhase 2/3TB-PRACTECALNCT02589782

Pragmatic Clinical Trial for a More Effective Concise and Less Toxic MDR-TB Treatment Regimen(s)

A Phase 2/3 study testing Bedaquiline, Pretomanid and Moxifloxacin in people with Tuberculosis, Multidrug-Resistant and Extensively Drug-Resistant Tuberculosis, run by Medecins Sans Frontieres, Netherlands at 7 sites in 3 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

TB PRACTECAL is a multi-centre, open label, multi-arm, randomised, controlled, phase II-III trial; evaluating short treatment regimens containing bedaquiline and pretomanid in combination with existing and re-purposed anti-TB drugs for the treatment of biologically confirmed pulmonary multi drug-resistant TB (MDR-TB). Read more about this study

Who is it for?
Ages 15 years and older
What is being tested?
Bedaquiline, Pretomanid and Moxifloxacin
Could I receive a placebo?
No, everyone receives an active treatment
How many people
552 participants
Where
7 sitesin 3 countries
Study dates
Jan 2017to 5 Aug 2022
Phase
Phase 2/3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 15 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Patients eligible for inclusion in the trial must fulfil all of the following criteria:
  • Male or female subjects aged 15 years of age or above, regardless of HIV status;
  • Microbiological test (molecular or phenotypic) confirming presence of M. tuberculosis;
  • Resistant to at least rifampicin by either molecular or phenotypic drug susceptibility test;
  • Completed informed consent form (ICF);

Who cannot join

  • Patients will not be eligible for inclusion in the trial if they meet any of the following criteria:
  • Known allergies, hypersensitivity, or intolerance to any of the study drugs;
  • Pregnant or breast-feeding; or unwilling to use appropriate contraceptive measures
  • Liver enzymes >3 times the upper limit of normal (AST or ALT);
  • Any condition (social or medical) which, in the opinion of the investigator, would make study participation unsafe;
  • Taking any medications contraindicated with the medicines in the trial;
Show all 21Show fewer
  • QTcF > 450ms;
  • One or more risk factors for QT prolongation (excluding age and gender) or other uncorrected risk factors for TdP;
  • History of cardiac disease, syncopal episodes, symptomatic or asymptomatic arrhythmias (with the exception of sinus arrhythmia);
  • Any baseline biochemical laboratory value consistent with Grade 4 toxicity.
  • Moribund
  • Known resistance to bedaquiline, pretomanid, delamanid or linezolid.
  • Prior use of bedaquiline and/or pretomanid and/or linezolid and/or delamanid for one or more months.
  • Patients not eligible to start a new course of MDR-TB/XDR-TB treatment according to local protocol, including but not limited to:
  • currently on MDR-TB treatment for more than 2 weeks (and not failing)
  • unstable address
  • loss to follow-up in previous treatment with no change in circumstance and motivation.
  • Tuberculous meningoencephalitis, brain abscesses, osteomyelitis or arthritis.
  • PKPD inclusion/exclusion:
  • Adult patients (aged 18 years or above) recruited into the investigational arms of the TB-PRACTECAL trial in the approved sites.
  • Willing to sign the sub-study informed consent form after agreeing to the additional blood draws.

Trial locations and contacts

7 sites in 3 countries.

7 sites in 3 countries

South Africa4 sites
  • THINK Clinical Trial Unit, Hillcrest

    Durban, KwaZulu-Natal, 3650

  • King DinuZulu Hospital

    Durban, KwaZulu-Natal, 4091

  • Helen Jospeh Hospital

    Johannesburg, Gauteng, 2092

  • Doris Goodwin Hospital

    Pietermaritzburg, KwaZulu-Natal

Other trials in South Africa

Uzbekistan2 sites
  • Republican TB Hospital No. 2

    Nukus, Karakalpakstan

  • Sh Alimov Republican Specialised Scientific-Practical Medical Centre for Phthysiology and Pulmonology Hospital

    Tashkent

Other trials in Uzbekistan

Belarus1 site
  • Republican Scientific and Practical Centre for Pulmonology and Tuberculosis hospital

    Minsk

Other trials in Belarus

About this study

Official title: A Randomised, Controlled, Open-Label, Phase II-III Trial to Evaluate the Safety and Efficacy of Regimens Containing Bedaquiline and Pretomanid for the Treatment of Adult Patients With Pulmonary Multidrug Resistant Tuberculosis

TB PRACTECAL is a multi-centre, open label, multi-arm, randomised, controlled, phase II-III trial; evaluating short treatment regimens containing bedaquiline and pretomanid in combination with existing and re-purposed anti-TB drugs for the treatment of biologically confirmed pulmonary multi drug-resistant TB (MDR-TB).

Read the detailed description

This is a multi-centre, open label, multi-arm, randomised, controlled, phase II-III trial; evaluating short treatment regimens containing bedaquiline and pretomanid in combination with existing and re-purposed anti-TB drugs for the treatment of biologically confirmed pulmonary multidrug-resistant TB (MDR-TB).

The study will be divided into two stages, with a seamless transition between the stages, meaning recruitment into an arm will only stop after a decision has been taken following stage 1 primary end point data analysis. All recruited patients will be followed up to 108 weeks post randomisation unless they die or withdraw consent. The local standard of care (SOC) MDR-TB regimen will be used as the internal control for both safety and efficacy.

The first stage corresponds to a Phase II trial of safety and preliminary efficacy in patients with MDR-TB. Patients will be recruited into 3 parallel B and Pa containing regimen arms plus a SOC control. The main objective of Stage 1 is to select drug regimens for evaluation in Stage 2 based on 8 week safety and efficacy endpoints. All stage 1 patients will be hospitalised for 8 weeks for intensive cardiological evaluations to establish the QT-specific liability of the regimens.

Investigational arms that do not meet predefined safety and efficacy criteria (percentage culture conversion >40%; percentage discontinuation and death <45%) will not be considered for further evaluation. The regimens that do not meet these pre-defined safety and/or efficacy criteria will be eligible to be evaluated for long term safety, tolerability and efficacy in Stage 2.

If less than two investigational arms are available for stage two assessment, the SAC will make recommendations on whether new arms should be introduced in the study. If more than two arms are available for the Stage 2 assessment, two regimens will be chosen. The SAC will make recommendations on which arms to take forward to the trial steering committee.

The second stage corresponds to a phase III trial. Patients in this stage will be recruited into the arms chosen from stage 1 plus the SOC. The regimens will primarily be evaluated for safety and efficacy in comparison with the SOC arm at 72 weeks post randomisation. The primary efficacy outcome will be a composite endpoint of the percentage of unfavourable outcomes. The secondary outcomes will include safety outcomes and in particular the percentage of Grade 3 or 4 AEs and SAEs in the investigational regimens compared with the SOC.

Being tested
Bedaquiline, Pretomanid, Moxifloxacin, Linezolid, Clofazimine
Keywords
bedaquiline, Nitroimidazoles, diarylquinolines, linezolid, clofazimine, pretomanid, moxifloxacin
Medical subject headings
Tuberculosis, Multidrug-Resistant, Extensively Drug-Resistant Tuberculosis, Tuberculosis, Pulmonary

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BedaquilineDrug

    Also called Sirturo, R207910, TMC207

  • PretomanidDrug

    Also called PA-824

  • MoxifloxacinDrug

    Also called Avelox

  • LinezolidDrug

    Also called Zyvox

  • ClofazimineDrug

    Also called Lamprene

  • Locally accepted standard of care which is consistent with the WHO recommendations for the treatment of M/XDR-TB.Drug

Study groups in NCT02589782
Study groupRoleWhat they receive
Regimen 1ExperimentalBedaquiline: 400 mg once daily for 2 weeks followed by 200 mg 3 times per week for 22 weeks Pretomanid: 200mg once daily for 24 weeks Moxifloxacin: 400 mg once daily for 24 weeks Linezolid: 600mg daily for 16 weeks then 300mg daily (or 600mg x3/wk) for the remaining 8 weeks or earlier when moderately tolerated
Receives: Drug: Bedaquiline; Drug: Pretomanid; Drug: Moxifloxacin; Drug: Linezolid
Regimen 2ExperimentalBedaquiline: 400 mg once daily for 2 weeks followed by 200 mg 3 times per week for 22 weeks Pretomanid: 200mg once daily for 24 weeks Linezolid: 600mg daily for 16 weeks then 300mg daily (or 600mg x3/wk) for the remaining 8 weeks or earlier when moderately tolerated Clofazimine: 50 mg (less than 33 kg), 100 mg (more than 33 kg) for 24 weeks
Receives: Drug: Bedaquiline; Drug: Pretomanid; Drug: Linezolid; Drug: Clofazimine
Regimen 3ExperimentalBedaquiline: 400 mg once daily for 2 weeks followed by 200 mg 3 times per week for 22 weeks Pretomanid: 200mg once daily for 24 weeks Linezolid: 600mg daily for 16 weeks then 300mg daily (or 600mg x3/wk) for the remaining 8 weeks or earlier when moderately tolerated)
Receives: Drug: Bedaquiline; Drug: Pretomanid; Drug: Linezolid
Control RegimenActive comparatorLocally accepted standard of care which is consistent with the WHO recommendations for the treatment of M/XDR-TB.
Receives: Drug: Locally accepted standard of care which is consistent with the WHO recommendations for the treatment of M/XDR-TB.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Stage 1:Percentage of patients with culture conversion in liquid media at 8 weeks post randomisation.

    Measured: 8 weeks post randomisation

  2. Stage 1: Percentage of patients who discontinue treatment for any reason or die

    Measured: 8 weeks post randomisation

  3. Stage 2: Percentage of patients with an unfavourable outcome (failure, death, recurrence, loss to follow-up)

    Measured: 72 weeks post-randomisation

Secondary outcomes (14)
  1. Stage 1: Percentage of patients with grade 3 or higher QT prolongation

    Measured: within 8 weeks post randomisation

  2. Stage 1: Percentage of patients experiencing at least one Serious Adverse Event (SAE)

    Measured: within 8 weeks post randomisation

  3. Stage 1:Percentage of patients experiencing at least one new grade 3 or higher Adverse Event

    Measured: within 8 weeks post randomisation

  4. Stage 2: Percentage of patients with culture conversion

    Measured: 12 weeks post randomisation

  5. Stage 2: Percentage of patients with an unfavourable outcome (i.e. failure, treatment discontinuation, death, loss to follow up)

    Measured: 24 weeks post randomisation

  6. Stage 2: Percentage of patients with an unfavourable outcome (i.e. failure, treatment discontinuation, death, loss to follow up, still on treatment at censure and recurrence)

    Measured: 108 weeks post randomisation

  7. Stage 2: Median time to culture conversion

    Measured: 108 weeks

  8. Stage 2: Percentage of patients with an SAE or new grade 3 or higher AE

    Measured: 72 weeks post randomisation

  9. Stage 2: Percentage of patients with an SAE or new grade 3 or higher AE

    Measured: 108 weeks post randomisation

  10. Stage 2: Percentage of patients with an SAE or new grade 3 or higher AE at the end of treatment

    The percentage of patients with an SAE or new grade 3 or higher AE at the end of treatment in the investigational arms (maximum of 24 weeks) and the SOC arm which varies in length (maximum 108 weeks).

    Measured: 24 weeks in investigational arms and 108 weeks in SOC arm

  11. Stage 2: Mean single ΔQTcF

    Measured: 24 weeks post randomisation

  12. Stage 2: Percentage of patients experiencing recurrence

    Measured: week 48 in investigational arms

  13. Stage 2: Plasma drug concentrations

    Measured: In relation to dose intake and start of treatment over a 72 week period

  14. Stage 2: TB drug hair levels

    Measured: In relation to dose intake and start of treatment over a 72 week period

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Oct 2015 (estimated)
  2. Study startJan 2017
  3. Primary completion5 Aug 2022
  4. Study completion5 Aug 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
552 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02589782
Sponsor's protocol ID
1541
Acronym
TB-PRACTECAL
Status last verified
Apr 2024
First submitted
15 Oct 2015
Last updated
1 May 2024
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Yes: Deidentified dataset will be made available via the TB-PACTS repository.

Publications

  • Motta I, Cusinato M, Ludman AJ, Lachenal N, Dodd M, Soe M, Abdrasuliev T, Usmanova R, Butabekov I, Nikolaevna TZ, Liverko I, Parpieva N, Moodliar R, Solodovnikova V, Kazounis E, Nyang'wa B-T, Fielding KL, Berry C. How much should we still worry about QTc prolongation in rifampicin-resistant tuberculosis? ECG findings from TB-PRACTECAL clinical trial. Antimicrob Agents Chemother. 2024 Jul 9;68(7):e0053624. doi: 10.1128/aac.00536-24. Epub 2024 Jun 6.

    PubMed 38842323
  • Nyang'wa BT, Berry C, Kazounis E, Motta I, Parpieva N, Tigay Z, Moodliar R, Dodd M, Solodovnikova V, Liverko I, Rajaram S, Rassool M, McHugh T, Spigelman M, Moore DA, Ritmeijer K, du Cros P, Fielding K; TB-PRACTECAL team. Short oral regimens for pulmonary rifampicin-resistant tuberculosis (TB-PRACTECAL): an open-label, randomised, controlled, phase 2B-3, multi-arm, multicentre, non-inferiority trial. Lancet Respir Med. 2024 Feb;12(2):117-128. doi: 10.1016/S2213-2600(23)00389-2. Epub 2023 Nov 16.

    PubMed 37980911
  • Nyang'wa BT, Berry C, Kazounis E, Motta I, Parpieva N, Tigay Z, Solodovnikova V, Liverko I, Moodliar R, Dodd M, Ngubane N, Rassool M, McHugh TD, Spigelman M, Moore DAJ, Ritmeijer K, du Cros P, Fielding K; TB-PRACTECAL Study Collaborators. A 24-Week, All-Oral Regimen for Rifampin-Resistant Tuberculosis. N Engl J Med. 2022 Dec 22;387(25):2331-2343. doi: 10.1056/NEJMoa2117166.

    PubMed 36546625
  • Berry C, du Cros P, Fielding K, Gajewski S, Kazounis E, McHugh TD, Merle C, Motta I, Moore DAJ, Nyang'wa BT. TB-PRACTECAL: study protocol for a randomised, controlled, open-label, phase II-III trial to evaluate the safety and efficacy of regimens containing bedaquiline and pretomanid for the treatment of adult patients with pulmonary multidrug-resistant tuberculosis. Trials. 2022 Jun 13;23(1):484. doi: 10.1186/s13063-022-06331-8.

    PubMed 35698158

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Bedaquiline, Pretomanid and Moxifloxacin in people with Tuberculosis, Multidrug-Resistant and Extensively Drug-Resistant Tuberculosis, run by Medecins Sans Frontieres, Netherlands at 7 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 21 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 May 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in South Africa, Uzbekistan, Belarus. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Stage 1:Percentage of patients with culture conversion in liquid media at 8 weeks post randomisation. (time frame: 8 weeks post randomisation). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02589782, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 May 2024.

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