A Phase 2 Study to Evaluate Early Bactericidal Activity, Safety, Tolerability, and Pharmacokinetics of Multiple Oral Doses of Telacebec (Q203)
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ClinicalTrials.gov Identifier: NCT03563599 |
Recruitment Status :
Completed
First Posted : June 20, 2018
Last Update Posted : September 10, 2019
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Treatment-naïve, Sputum Smear-positive Patients With Drug-sensitive Pulmonary TB | Drug: Telacebec (Q203) Drug: Rifafour e-275 | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 60 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | An Open-label Randomized Study to Evaluate the Early Bactericidal Activity, Safety, Tolerability, and Pharmacokinetics of Multiple Oral Doses of Telacebec (Q203) in Treatment-naïve Patients With Newly Diagnosed Drug-sensitive Sputum Smear-positive Pulmonary Tuberculosis |
Actual Study Start Date : | July 23, 2018 |
Actual Primary Completion Date : | September 9, 2019 |
Actual Study Completion Date : | September 9, 2019 |
Arm | Intervention/treatment |
---|---|
Experimental: Telacebec (Q203) tablet |
Drug: Telacebec (Q203)
High, Mid, Low dose of telacebec |
Active Comparator: Rifafour e-275 |
Drug: Rifafour e-275
RHZE (R=rifampicin: H=isoniazid: Z=pyrazinamide: E=ethambutol) |
- The EBA (early bactericidal activity) of telacebec (Q203) [ Time Frame: Days 0 to 14 post dose ]The EBA determined by the rate of change in the time to positivity (TTP) in sputum over the periods Days 0 to 14

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Ages Eligible for Study: | 18 Years to 65 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- A new episode of pulmonary TB determined by testing at the study appointed laboratory: Mycobacterium tuberculosis positive and rifampicin and isoniazid sensitive on a rapid molecular test
- A chest X-ray taken no more than 14 days before Screening which in the opinion of the Investigator is consistent with TB
- Sputum smear positive on direct microscopy for acid-fast bacilli on at least 1 pre-treatment sputum sample
- Ability to produce an adequate volume of sputum as determined by an approximately 16-hour overnight sample collection
- Be of non-childbearing potential or using effective methods of birth control, as defined in the protocol
Exclusion Criteria:
- The patient is mentally or legally incapacitated at Screening
- Any condition or circumstance, in the opinion of the Investigator, which may make the patient unlikely to complete the study or comply with study procedures and requirements, or may pose a risk to the patient's safety
- Clinically significant evidence of extra-thoracic TB (miliary TB, abdominal TB, urogenital TB, osteoarthritic TB, TB meningitis), as judged by the Investigator
- The patient has been infected with hepatitis B or C virus as confirmed by tests for hepatitis B core antibodies, hepatitis B surface antigens, and the hepatitis C virus antibodies
- The patient with history of allergic reaction to isoniazid, rifampicin, pyrazinamide, ethambutol or related substances (eg, tosylate), as confirmed by the clinical judgement of the Investigator

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03563599
South Africa | |
TASK Applied Science | |
Cape Town, South Africa | |
UCT Lung Institute | |
Cape Town, South Africa |
Responsible Party: | Qurient Co., Ltd. |
ClinicalTrials.gov Identifier: | NCT03563599 |
Other Study ID Numbers: |
Q203-TB-P2-ZA001 |
First Posted: | June 20, 2018 Key Record Dates |
Last Update Posted: | September 10, 2019 |
Last Verified: | September 2019 |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Hypersensitivity Immune System Diseases |