A seamless, staged Phase II/III, open-label, multicenter, non-inferiority trial, to compare the efficacy and safety of 4 weeks of bedaquiline (BDQ) versus a a standard regimen for preventing regimen for preventing confirmed or probable tuberculosis disease (TBD) during 72 weeks of follow-up among people living with HIV (PLHIV) and high-risk Close Contacts (CC) of adults with Drug Susceptible (DS) or Rifampin Resistant (RR) TB.
Treating adult, adolescent, child, and pregnant close contacts (CCs) of drug-sensitive tuberculosis (DS-TB) who are high-risk for developing tuberculosis disease (TBD) as well as adult and adolescent people living with HIV (PLHIV) in high-tuberculosis burden regions with bedaquiline (BDQ) will be noninferior in reducing the risk of developing TBD compared with a WHO-recommended rifamycin-containing short-course regimen for TB preventive therapy (TPT). Treating adult, adolescent, child, and pregnant CCs of rifampin-resistant tuberculosis (RR-TB) who are high-risk for developing TBD with BDQ will be noninferior in reducing the risk of developing TBD compared with levofloxacin.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
2,530
CCs (Close Contacts) of DS-TB Index Patients and PLHIV at high risk of developing TBD 1. Children 0 to \<5 years old who are HIV negative, regardless of latent tuberculosis infection (LTBI) result by TST (tuberculin skin test) or IGRA (interferon-gamma release assay) 2. Adults, pregnant people, adolescents, and children ≥5 years old who are HIV negative and LTBI positive (by IGRA) 3. Adults and adolescents ≥15 years of age who are living with HIV regardless of LTBI status, regardless of whether the participant is a CC CCs of RR-TB Index Patients at high risk of developing TBD 1. Children 0 to \<5 years old, regardless of HIV status or LTBI result (by TST or IGRA) 2. Adults, adolescents, and children ≥5 years old who are HIV negative and LTBI positive (by IGRA) 3. Adults, pregnant people, adolescents, and children ≥5 years old who are living with HIV regardless of LTBI status Bedaquiline based on weight and/or age at Enrollment daily for four weeks (28 doses)
CCs of DS-TB Index Patients and PLHIV at high risk of developing TBD 1. Children 0 to \<5 years old who are HIV status negative, regardless of latent tuberculosis infection (LTBI) result (WHO-recommended skin test or interferon-gamma release assay \[IGRA\]) 2. Adults, adolescents, and children ≥5 years old who are HIV status negative and LTBI positive (by IGRA) 3. Adults and adolescents ≥15 years of age who are living with HIV regardless of LTBI status, regardless of whether they are a CC 3HP: 3 months of weekly isoniazid (H) and rifapentine (P) (12 doses)
National Center for Communicable Disease (NCCD)
Ulaanbaatar, Mongolia
NOT_YET_RECRUITINGHNSEB (Hospital Nacional Sergio E. Bernales)
Lima, Peru
NOT_YET_RECRUITINGSES Policlinico
Lima, Peru
Safety DS-TB CCs and PLHIV (Stage 1): Proportion of participants who permanently discontinue the randomized study drug due to a treatment-related adverse event by 18 weeks
Estimate of the safety of 1BDQ and 3HP among adult, adolescent, and child CCs of DS-TB Index Patients at high risk of developing TBD, as well as adult and adolescent PLHIV in high TB-burden settings
Time frame: 18 weeks
Safety for RR-TB CCs (Stage 1): Proportion of participants who permanently discontinue the randomized study drug due to a treatment-related adverse event by 36 weeks
Estimate of the safety of 1BDQ and 6 months of levofloxacin (6L) among adult, adolescent, and child CCs of RR-TB Index Patients at high risk of developing TBD
Time frame: 36 weeks
Treatment Completion - PLHIV & CCs of DS-TB (Stage 1): Proportion of participants completing assigned treatment within window prescribed in protocol
Estimate on-time treatment completion of 1BDQ \& 3HP in adult, adolescent, \& child CCs of DS-TB Index Patients at high risk of developing TBD, \& adult and adolescent PLHIV in high TB-burden countries
Time frame: 18 weeks
Treatment Completion - CCs of RR-TB (Stage 1): Proportion of participants completing assigned treatment within window prescribed in protocol
Estimate on-time treatment completion of 1BDQ and 6 months of levofloxacin (6L) among adult, adolescent, and child CCs of RR-TB Index Patients at high risk of developing TBD
Time frame: 36 weeks
Primary Efficacy Endpoint (Stage 2): Number of enrolled participants (PLHIV, contacts of DS-TB or RR-TB) diagnosed with bacteriologically confirmed or probable / (if adult), and confirmed or unconfirmed (if child) TB disease
Number (per person-years) of participants diagnosed with confirmed or probable (if adult) and unconfirmed or confirmed (if child) TB disease, compared between the comparator arm and investigational (BDQ) arm and expressed as the averted events ratio (AER)
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CCs of RR-TB Index Patients at high risk of developing TBD 1. Children 0 to \<5 years old, regardless of HIV status or LTBI result (by TST or IGRA) 2. Adults, adolescents, and children ≥5 years old who are HIV status negative and LTBI positive (by IGRA) 3. Adults, pregnant people, adolescents, and children ≥5 years old who are living with HIV regardless of LTBI status Levofloxacin (LFX) based on weight at Enrollment daily for 6 months (182 doses)
Nimr-Mmrc
Mbeya, Tanzania
NOT_YET_RECRUITINGKilimanjaro Clinical Research Institute
Moshi, Tanzania
RECRUITINGJoint Clinical Research Centre
Kampala, Uganda
RECRUITINGMakerere Lung Institute
Kampala, Uganda
RECRUITINGMU-JHU Care Ltd.
Kampala, Uganda
RECRUITINGTime frame: Up to 72 weeks post-treatment initiation
Primary Safety Endpoint (Stage 2): Cumulative number of enrolled participants (PLHIV, contacts of DS-TB or RR-TB) who permanently discontinue the assigned study regimen due to an adverse drug reaction
Proportion of individuals who permanently discontinue assigned study regimen due to a treatment-related adverse event, compared between the comparator arm and investigational (BDQ) arm.
Time frame: Varies by treatment regimen (1 month, 3 months, or 6 months)
Stage 1: Proportion of participants who permanently discontinue the randomized study drug due to a treatment-related adverse event by 18 weeks
To compare the safety of 1BDQ to 3HP among adult, adolescent, and child CCs of DS-TB Index Patients at high risk of developing TBD as well as adult and adolescent PLHIV in high TB-burden settings
Time frame: 18 weeks
Stage 1: Proportion of participants who permanently discontinue the randomized study drug due to a treatment-related adverse event by 36 weeks
To compare the safety of 1BDQ to 6 months of levofloxacin (6L) among adult, adolescent, and child CCs of RR-TB Index Patients at high risk of developing TBD
Time frame: 36 weeks
Stage 1: Proportion of participants completing assigned treatment within window prescribed in protocol
To compare on-time treatment completion of 1BDQ to 6 months of levofloxacin (6L) among adult, adolescent, and child CCs of RR-TB Index Patients at high risk of developing TBD
Time frame: Dependent on treatment assignment (1 month, 3 months, or 6 months)
Stage 1: Proportion of individuals who experience a grade 3 or higher AE, compared between the comparator arm and investigational (1BDQ) arm at 18 weeks
To compare the safety of 1BDQ to 3HP among adult, adolescent, and child CCs of DS-TB Index Patients at high risk of developing TBD, as well as adult and adolescent PLHIV in high TB-burden settings
Time frame: 18 weeks
Stage 1: Proportion of participants completing assigned treatment within window prescribed in protocol
To compare on-time treatment completion of 1BDQ to 3HP among adult, adolescent, and child CCs of DS-TB Index Patients at high risk of developing TBD as well as adult and adolescent PLHIV in high TB-burden settings
Time frame: Dependent upon treatment assignment (1 month, 3 months, or 6 months)
Stage 1: Proportion of individuals who experience a grade 3 or higher AE, compared between the comparator arm and investigational (1BDQ) arm at 36 weeks
To compare the safety of 1BDQ to 6 months of levofloxacin (6L) among adult, adolescent, and child CCs of RR-TB Index Patients at high risk of developing TBD
Time frame: 36 weeks
Stage 1: Proportion of participants who experience a TBD event at up to 72 weeks of follow-up, by study arm
To estimate the number of incident TBD events in each study arm, at up to 72 weeks of follow-up
Time frame: Up to 72 weeks
Secondary Efficacy Endpoint (Stage 2): # of enrolled participants (PLHIV, contacts of DS-TB, RR-TB) who reach a composite outcome of bacteriologically confirmed, probable, or possible (if adult) and confirmed or unconfirmed (if child) TBD or death
Number, per person-years, of participants diagnosed with bacteriologically confirmed, probable, or possible (if adult) and confirmed or unconfirmed (if child) TB disease or death from any cause (except for violent or accidental death), compared between the comparator arm and investigational (BDQ) arm and expressed as the AER.
Time frame: 72 weeks post-treatment initiation
Secondary Safety Endpoint (Stage 2): Cumulative number of enrolled participants (PLHIV, contacts of DS-TB or RR-TB) who experience a grade 3 or higher AE
Proportion of individuals who experience a grade 3 or higher AE, compared between the comparator arm and investigational (BDQ) arm
Time frame: Varies by treatment regimen duration (1 month, 3 months, or 6 months)
Secondary Endpoint of Treatment Completion (Stage 2): Proportion of participants who have taken at least 90% of the doses within the specified timeframe of the assigned regimen
The absolute difference in proportions of the number of participants who have taken at least 90% of their doses within the specified timeframe of their assigned regimen, and the corresponding 95% confidence interval
Time frame: Varies by treatment regimen duration (1 month, 3 months, or 6 months)
Stage 1: Proportion of participants who experience a composite outcome at up to 72 weeks of follow-up, by study arm
To estimate the number of composite outcomes of confirmed, probable or possible (if adult), or confirmed or unconfirmed (if child) TBD \& all-cause mortality due to any cause, except violent or accidental death in each study arm, up to 72 weeks
Time frame: Up to 72 weeks