Bactericidal Activity of TBD09 in Combination With Other Drugs in Pulmonary Tuberculosis

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18-65
SponsorGates Medical Research Institute

About this trial

The purpose of this study is to evaluate if TBD09 in combination with other active agents in adults with drug sensitive pulmonary tuberculosis has potential to be safe and effective.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age 18-65 years at consent

Body weight 35-100 kg at screening

Written informed consent obtained

Newly diagnosed rifampicin-sensitive pulmonary TB

Disqualifiers

Prior anti-TB treatment for the current TB episode within 60 days

Prior medication active against Mtb within 3 months

Evidence of extra-thoracic TB, per investigator judgement

Prior treatment completion for TB within 3 years

Trial design

Design model

Parallel

Treatments tested in this trial

  • Bedaquiline, pretomanid and TBD09

    Drug

    Group 1 (30 participants): The combination of TBD09 (100 mg three times weekly, TIW), bedaquiline (200 mg daily, QD), and pretomanid (200 mg QD), 28 days

  • Bedaquiline, pretomanid and TBD09

    Drug

    Group 2 (30 participants): The combination of TBD09 (100 mg QD), bedaquiline (200 mg QD), and pretomanid (200 mg QD), 28 days

  • Bedaquiline, pretomanid and TBD09

    Drug

    Group 3 (30 participants): The combination of TBD09 (300 mg QD), bedaquiline (200 mg QD), and pretomanid (200 mg QD), 28 days

  • Bedaquiline, pretomanid and TBD09

    Drug

    Group 4 (30 participants): The combination of TBD09 (500 mg QD), bedaquiline (200 mg QD), and pretomanid (200 mg QD), 28 days

  • Bedaquiline, pretomanid and linezolid

    Drug

    Group 5 (30 participants): The combination of linezolid (600 mg QD), bedaquiline (200 mg QD), and pretomanid (200 mg QD), 28 days

Treatment groups

150 Participants
are divided into 5 treatment groups
Group A: Group 1Experimental treatment 1 intervention
Group B: Group 2Experimental treatment 1 intervention
Group C: Group 3Experimental treatment 1 intervention
Group D: Group 4Experimental treatment 1 intervention
Group E: Group 5Active comparator 1 intervention

Trial outcomes

Primary outcomes

1

Bactericidal Activity

Average daily change in MGIT sputum culture TTD from baseline to end-of-treatment (EOT)

Time frame
From randomization through Day 28 (EOT)
2

Safety: SAEs

Proportion of participants with this event

Time frame
Screening through Day 35 (EOS)
3

Safety: TEAEs

Proportion of participants with this event

Time frame
Screening through Day 35 (EOS)
4

Safety: AESIs

Proportion of participants with this event

Time frame
Screening through Day 35 (EOS)

Secondary outcomes

1

Safety: Hematologic Effect

Proportion of participants who meet each of the following binary classifications of platelets, absolute neutrophil count (ANC), total white blood cell count (WBC), absolute lymphocyte count (ALC), and hemoglobin: 1. Post-baseline result \< lower limit of normal (LLN) among participants with baseline result \> LLN (yes/no) 2. Post-baseline result \< 50% of LLN (yes/no) 3. Post-baseline result ≥50% decrease relative to baseline (yes/no)

Time frame
Randomization through Day 35 (EOS)
2

Safety: Visual Acuity Assessment

Proportion of participants with worsening of postbaseline visual acuity score of 2 lines or more in either eye using Snellen-type charts

Time frame
Randomization through Day 35 (EOS)
3

Safety: Colour Vision Assessment

Proportion of participants with a new or worsening post-baseline color vision abnormality in either eye (by severity grade) using Ishihara plates

Time frame
Randomization through Day 35 (EOS)
4

Safety: Brief Peripheral Neuropathy Screen (BPNS) score

Proportion of participants with a reported new or worsening post-baseline peripheral neuropathy symptom on BPNS in either lower extremity (overall and by severity grade)

Time frame
Randomization through Day 35 (EOS)

Other outcomes

Sponsors and contacts

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