ClinicalTrials.gg
RecruitingNCT05555303StakeUpdated Mar 29, 2023

Preventing Acquired Resistance: Strengthen TB Treatment by Adding Amikacin in the First Treatment Week of Multidrug-resistant Tuberculosis

A Phase 2 interventional study of Amikacin in Tuberculosis, Multidrug-Resistant, sponsored by Rwanda Biomedical Centre. Recruiting at 1 site in Rwanda. Open to participants aged 19 Years to 64 Years. Per ClinicalTrials.gov, last updated 2023-03-29.

Sponsored by Rwanda Biomedical Centre · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Mar 2024, 2 years 8 months ago, but the record still lists the study as recruiting.
  • Started Mar 2023; still recruiting 3 years 8 months later.
Phase
Phase 2
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
19 Years to 64 Years
Sex
All
01

Study summary

Acquired drug-resistance is a major challenge for tuberculosis (TB) care programs. The 2020 WHO guidelines recommends replacing second-line injectables by bedaquiline in rifampicin-resistant TB (RR-TB) treatment regimens. However, recent reports show too high rates of acquired bedaquiline resistance. This may be explained by the delayed onset of action of bedaquiline. The investigators will study whether high-dose amikacin (a second-line injectable), administered during the first week of RR-TB treatment, is safe in 20 patients treated for RR-TB in Rwanda. If safe, further studies will assess whether adding amikacin in the first treatment week protect against acquired bedaquiline resistance. This study is embedded in an ongoing "Master study" of the ShORRT (short oral RR-TB) treatment regimen in Rwanda, a before/after study, with a retrospective cohort (before; the previously recommended second-line injectable-containing RR-TB regimen) and a prospective cohort (after: the newly recommended ShORRT regimen).

02

Conditions studied

  • Tuberculosis, Multidrug-Resistant

Keywords

  • multidrug- and rifampicin-resistant tuberculosis
03

In context

Tuberculosis, Multidrug-Resistant

132 studies on the registry are indexed under Tuberculosis, Multidrug-Resistant; 25 are open to participants now.

This study's planned enrollment of 20 is below the median of 194 across 88 interventional studies indexed under Tuberculosis, Multidrug-Resistant.

Browse Tuberculosis, Multidrug-Resistant studies →

Lead sponsor

Rwanda Biomedical Centre is the lead sponsor of 2 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
19 Years to 64 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:

  • Enrolled in the Master SHORRT study
  • Able and willing to provide written for the present substudy "Stake"

Exclusion Criteria:

  • Any audiometry abnormality (grade 1 or higher) on baseline audiometry
  • History of kidney disease or baseline below or equal to 60ml/min
  • Pregnant or breastfeeding women
  • History of previous injectable based tuberculosis treatment (including with streptomycin)
  • \< 18 years and > 65 years old
  • Patient on NSAID or on diuretics

Master ShORRT study

Inclusion criteria:

  • Is willing and able to give informed consent to be enrolled in the research project and for follow-up
  • Has bacteriologically or molecularly confirmed TB with evidence of resistance to at least rifampicin

Exclusion criteria:

  • Is unable to take oral medication;
  • Must take any medications with the medicines in the MDR/RR-TB regimen;
  • Has a known allergy to any of the drugs in the MDR/RR-TB regimen;
  • Has a interval of ≥ 500 msec; at baseline that does not correct with medical management.
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (estimated)

Study arms

  • Other
    Amikacin

    Drug: Amikacin

Interventions

  • In addition to the all-oral RR-TB treatment, add two intramuscular doses each consisting of 30 mg amikacin/kg, a first dose on day 1 and a second dose on day 4, all in the first week of treatment. The amikacin solution will be admixed with a lidocaine solution in the syringe before administration.

06

What researchers measure

Primary outcomes

  1. grade 3-4 AE likely or definitively related to amikacin

    Assess whether less than 14% of patients treated with the amikacin-strengthened regimen will experience a grade 3-4 adverse event likely or definitively related to the use of amikacin

    Time frame: After 2 weeks of treatment

Secondary outcomes

  1. turnaround times

    Assess the turnaround times to inform the feasibility of doing the tests proposed in this study for the assessment of the response to the use of two doses of amikacin

    Time frame: at the end of treatment week 2 (+/- 3 d)

  2. testing coverage

    Assess the testing coverage (proportion of patients with a result for each of the tests) to inform the feasibility of doing the tests proposed in this study for the assessment of the response to the use of two doses of amikacin

    Time frame: at the end of treatment week 2 (+/- 3 d)

  3. AE likely or definitely related to amikacin

    Describe the occurrence of adverse events that are considered as likely or definitely related to the use of amikacin

    Time frame: at the end of treatment week 2 (+/- 3 d)

  4. amikacin concentration

    Describe the amikacin concentration stratified by values for different treatment response markers : Colony forming units on semi-quantitative culture

    Time frame: during the first two treatment weeks

  5. amikacin concentration

    Describe the amikacin concentration stratified by values for different treatment response markers : molecular bacterial load

    Time frame: during the first two treatment weeks

  6. amikacin concentration

    Describe the amikacin concentration stratified by values for different treatment response markers : thin-layer agar semi-quantitative culture

    Time frame: during the first two treatment weeks

  7. amikacin concentration

    Describe the amikacin concentration stratified by values for different treatment response markers: RNA Synthesis ratio

    Time frame: during the first two treatment weeks

  8. amikacin concentration

    Describe the amikacin concentration stratified by values for different treatment response markers : time to culture positivity on liquid culture

    Time frame: during the first two treatment weeks

  9. post-injection pain

    Describe post-injection pain on a 0-10 pain scale (The Wong-Baker FACES pain rating scale) (15)

    Time frame: at 0, 15 minutes, 30 minutes and 60 minutes after the injection of amikacin with lidocaine on day 1 and 4, as well as the next morning

  10. all AE, relationship with TB drugs

    Describe all AE, by their grade, and their relationship with TB drugs

    Time frame: at the end of the ShORRT study, approximately 23 months after the treatment

  11. treatment outcomes

    Describe treatment outcomes, using the following effectiveness endpoints: * Month of stable (without reversion) culture conversion * End-of-treatment outcomes (treatment failure, death during treatment, LTFU during treatment, cure, treatment completion) * Treatment outcomes at 12 months post-treatment (end-of treatment outcome corrected for relapse) * Acquired resistance to bedaquiline, fluoroquinolone, amikacin through target deep sequencing on paired baseline and failure sputa

    Time frame: at the end of treatment

  12. post-treatment outcomes

    Describe post-treatment outcomes, using the following effectiveness endpoints: * Month of stable (without reversion) culture conversion * End-of-treatment outcomes (treatment failure, death during treatment, LTFU during treatment, cure, treatment completion) * Treatment outcomes at 12 months post-treatment (end-of treatment outcome corrected for relapse) * Acquired resistance to bedaquiline, fluoroquinolone, amikacin through target deep sequencing on paired baseline and failure sputa

    Time frame: after post-treatment follow-up (part of ShORRT analysis)

07

Study locations

1 of 1 sites recruiting
  • Kabutare hospital
    Kabutare, Rwanda
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Mar 2023 (actual). Primary completion is estimated for Mar 2024, 12 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 16, 2022
First posted
Sep 26, 2022
StartActual
Mar 1, 2023
Primary completionEst.
Mar 2024
CompletionEst.
Feb 2026
Last update
Mar 29, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 29, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05555303
Lead sponsor
Rwanda Biomedical Centre
Collaborators
Institute of Tropical Medicine, World Health Organization
Responsible party
Sponsor
First posted
Sep 26, 2022
Start date
Mar 1, 2023
Primary completion
Mar 2024 (estimated)
Completion
Feb 2026 (estimated)
Last update
Mar 29, 2023

Study contacts

Yves Habimana-Mucyo, MSc
Contact
yves.mucyo@rbc.gov.rw
+250733436765
Jean Claude S. NGABONZIZA, PhD
Contact
jclaude.ngabonziza@rbc.gov.rw
+250788740490
Yves Habimana-Mucyo, MSc
principal investigator · Rwanda Biomedical Centre

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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