A PAN-USR TB Multi-Center Trial

Phase 3

Not yet recruiting

• Conditions: Pulmonary Tuberculosis
• Interventions: Drug: Bedaquiline (B); Drug: Sitafloxacin (S); Drug: Isoniazid (H); Drug: Linezolid (L); Drug: Rifampicin (R); Drug: Moxifloxacin (M); Drug: Pyrazinamide (Z); Drug: Pretomanid (Pa); Drug: Ethambutol (E)

• Registration Number: NCT06905522
• Lead Sponsor: Shenzhen Third People's Hospital

Brief Summary

Tuberculosis (TB) remains a major public health issue and one of the top ten causes of death from a single infectious disease worldwide. China is among the countries with the highest TB burden, ranking third globally for total TB cases and second for drug-resistant TB cases. PAN-TB is an innovative concept in TB treatment, aiming to develop a universal regimen effective for all forms of active TB, including both drug-susceptible and drug-resistant strains. The primary goal of the PAN-TB regimen is to simplify the treatment process, reduce costs, and improve treatment success rates. The ideal Target Regimen Profile (TRP) for PAN-TB includes superior efficacy compared to standard treatment for non-drug-resistant TB, a reduced treatment duration from the current 4-6 months to 2-3 months, and improved safety and tolerability. This project aims to explore a new ultra-short-course treatment regimen for both drug-sensitive (DS-TB) and drug-resistant TB (MDR/RR-TB), which aligns with the latest trends in TB treatment both domestically and internationally. The regimen also has significant practical implications for enhancing treatment efficacy and reducing patient burden. Furthermore, the study will explore the identification of new biomarkers closely linked to treatment outcomes over the course of full-cycle therapy.

Detailed Description

Not available

Study Timeline

• Status Verified: 2024-10
• Study First Submitted: 2025-01-02
• Study First Submitted QC: 2025-03-25
• Last Update Submitted: 2025-03-25
• Study First Posted: 2025-04-01
• Last Update Posted: 2025-04-01
• Study Start: 2025-04-15
• Primary Completion: 2029-01
• Study Completion: 2029-12

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 610

Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Drug-susceptible TB (A1)	Bedaquiline (B)	2 months (9 weeks) BLSZ regimen: The treatment involves the use of bedaquiline (B), linezolid (L), sitafloxacin (S), and pyrazinamide (Z) throughout the entire process. At the end of 2 months (9 weeks) of treatment, if the sputum smear is still positive or if clinical symptoms have not improved, the treatment duration can be extended to 13 weeks. After the extended treatment period (3 months or 13 weeks), if the sputum smear remains positive or if clinical symptoms have not been relieved, the patient should be switched to the standard treatment regimen, and the subject should be withdrawn from the study.
Drug-resistant TB (A2)	Bedaquiline (B)	2 months (9 weeks) BLSZ regimen: The treatment involves the use of bedaquiline (B), linezolid (L), sitafloxacin (S), and pyrazinamide (Z) throughout the entire process. At the end of 2 months (9 weeks) of treatment, if the sputum smear is still positive or if clinical symptoms have not improved, the treatment duration can be extended to 13 weeks. After the extended treatment period (3 months or 13 weeks), if the sputum smear remains positive or if clinical symptoms have not been relieved, the patient should be switched to the standard treatment regimen, and the subject should be withdrawn from the study.
Drug-susceptible TB (A1)	Sitafloxacin (S)	2 months (9 weeks) BLSZ regimen: The treatment involves the use of bedaquiline (B), linezolid (L), sitafloxacin (S), and pyrazinamide (Z) throughout the entire process. At the end of 2 months (9 weeks) of treatment, if the sputum smear is still positive or if clinical symptoms have not improved, the treatment duration can be extended to 13 weeks. After the extended treatment period (3 months or 13 weeks), if the sputum smear remains positive or if clinical symptoms have not been relieved, the patient should be switched to the standard treatment regimen, and the subject should be withdrawn from the study.
Drug-susceptible TB (A1)	Linezolid (L)	2 months (9 weeks) BLSZ regimen: The treatment involves the use of bedaquiline (B), linezolid (L), sitafloxacin (S), and pyrazinamide (Z) throughout the entire process. At the end of 2 months (9 weeks) of treatment, if the sputum smear is still positive or if clinical symptoms have not improved, the treatment duration can be extended to 13 weeks. After the extended treatment period (3 months or 13 weeks), if the sputum smear remains positive or if clinical symptoms have not been relieved, the patient should be switched to the standard treatment regimen, and the subject should be withdrawn from the study.
Drug-susceptible TB (A1)	Pyrazinamide (Z)	2 months (9 weeks) BLSZ regimen: The treatment involves the use of bedaquiline (B), linezolid (L), sitafloxacin (S), and pyrazinamide (Z) throughout the entire process. At the end of 2 months (9 weeks) of treatment, if the sputum smear is still positive or if clinical symptoms have not improved, the treatment duration can be extended to 13 weeks. After the extended treatment period (3 months or 13 weeks), if the sputum smear remains positive or if clinical symptoms have not been relieved, the patient should be switched to the standard treatment regimen, and the subject should be withdrawn from the study.
Drug-resistant TB (A2)	Sitafloxacin (S)	2 months (9 weeks) BLSZ regimen: The treatment involves the use of bedaquiline (B), linezolid (L), sitafloxacin (S), and pyrazinamide (Z) throughout the entire process. At the end of 2 months (9 weeks) of treatment, if the sputum smear is still positive or if clinical symptoms have not improved, the treatment duration can be extended to 13 weeks. After the extended treatment period (3 months or 13 weeks), if the sputum smear remains positive or if clinical symptoms have not been relieved, the patient should be switched to the standard treatment regimen, and the subject should be withdrawn from the study.
Drug-resistant TB (A2)	Linezolid (L)	2 months (9 weeks) BLSZ regimen: The treatment involves the use of bedaquiline (B), linezolid (L), sitafloxacin (S), and pyrazinamide (Z) throughout the entire process. At the end of 2 months (9 weeks) of treatment, if the sputum smear is still positive or if clinical symptoms have not improved, the treatment duration can be extended to 13 weeks. After the extended treatment period (3 months or 13 weeks), if the sputum smear remains positive or if clinical symptoms have not been relieved, the patient should be switched to the standard treatment regimen, and the subject should be withdrawn from the study.
Drug-resistant TB (A2)	Pyrazinamide (Z)	2 months (9 weeks) BLSZ regimen: The treatment involves the use of bedaquiline (B), linezolid (L), sitafloxacin (S), and pyrazinamide (Z) throughout the entire process. At the end of 2 months (9 weeks) of treatment, if the sputum smear is still positive or if clinical symptoms have not improved, the treatment duration can be extended to 13 weeks. After the extended treatment period (3 months or 13 weeks), if the sputum smear remains positive or if clinical symptoms have not been relieved, the patient should be switched to the standard treatment regimen, and the subject should be withdrawn from the study.
Drug-susceptible TB (B)	Pyrazinamide (Z)	2HRZE/4HR (26 weeks): Four drugs-isoniazid (H), rifampicin (R), pyrazinamide (Z), and ethambutol (E)-are used during the first 2 months of the intensive phase. This is followed by 4 months of consolidation treatment, during which only isoniazid and rifampicin are used.
Drug-resistant TB (C)	Pretomanid (Pa)	6 months (26 weeks) of BPaLM: The treatment involves the use of bedaquiline (B), pretomanid (Pa), linezolid (L), and moxifloxacin (M) throughout the entire course. If the sputum culture remains positive at 4 months, or if clinical symptoms are not relieved by 6 months, or if chest CT results show worsening at 6 months, the treatment may be extended to 9 months. If the patient chooses to withdraw from the study at 6 months, they are allowed to do so.
Drug-susceptible TB (B)	Isoniazid (H)	2HRZE/4HR (26 weeks): Four drugs-isoniazid (H), rifampicin (R), pyrazinamide (Z), and ethambutol (E)-are used during the first 2 months of the intensive phase. This is followed by 4 months of consolidation treatment, during which only isoniazid and rifampicin are used.
Drug-susceptible TB (B)	Rifampicin (R)	2HRZE/4HR (26 weeks): Four drugs-isoniazid (H), rifampicin (R), pyrazinamide (Z), and ethambutol (E)-are used during the first 2 months of the intensive phase. This is followed by 4 months of consolidation treatment, during which only isoniazid and rifampicin are used.
Drug-susceptible TB (B)	Ethambutol (E)	2HRZE/4HR (26 weeks): Four drugs-isoniazid (H), rifampicin (R), pyrazinamide (Z), and ethambutol (E)-are used during the first 2 months of the intensive phase. This is followed by 4 months of consolidation treatment, during which only isoniazid and rifampicin are used.
Drug-resistant TB (C)	Bedaquiline (B)	6 months (26 weeks) of BPaLM: The treatment involves the use of bedaquiline (B), pretomanid (Pa), linezolid (L), and moxifloxacin (M) throughout the entire course. If the sputum culture remains positive at 4 months, or if clinical symptoms are not relieved by 6 months, or if chest CT results show worsening at 6 months, the treatment may be extended to 9 months. If the patient chooses to withdraw from the study at 6 months, they are allowed to do so.
Drug-resistant TB (C)	Linezolid (L)	6 months (26 weeks) of BPaLM: The treatment involves the use of bedaquiline (B), pretomanid (Pa), linezolid (L), and moxifloxacin (M) throughout the entire course. If the sputum culture remains positive at 4 months, or if clinical symptoms are not relieved by 6 months, or if chest CT results show worsening at 6 months, the treatment may be extended to 9 months. If the patient chooses to withdraw from the study at 6 months, they are allowed to do so.
Drug-resistant TB (C)	Moxifloxacin (M)	6 months (26 weeks) of BPaLM: The treatment involves the use of bedaquiline (B), pretomanid (Pa), linezolid (L), and moxifloxacin (M) throughout the entire course. If the sputum culture remains positive at 4 months, or if clinical symptoms are not relieved by 6 months, or if chest CT results show worsening at 6 months, the treatment may be extended to 9 months. If the patient chooses to withdraw from the study at 6 months, they are allowed to do so.

Primary Outcome Measures

Name	Time	Method
Unfavorable outcomes	12 months (52 weeks)	Percentage of patients with unfavorable outcomes (failure, treatment interruption, death, loss to follow-up, re-treatment, recurrence) at 12 months (52 weeks) after randomization
Safety	2 months (9 weeks)	Percentage of patients who have treatment interruption due to any reason or died within 2 months (9 weeks) after randomization

Secondary Outcome Measures

Name	Time	Method
Sputum culture conversion rate	2 months (9 weeks) after randomization
Unfavorable outcomes (short-term)	6 months (26 weeks) after randomization
Unfavorable outcomes (mid-term)	18 months (78 weeks) after randomization
Time to sputum culture conversion	Median time
Serious adverse events or grade 3 or higher adverse events (short-term)	12 months (52 weeks) after randomization
Serious adverse events or grade 3 or higher adverse events (mid-term)	18 months (78 weeks) after randomization
Adverse events during treatment	9 or 13 weeks (A1, A2); 26 weeks (B, C)
QTcF prolongation during treatment	9 or 13 weeks (A1, A2); 26 weeks (B, C)
Liver function damage during treatment	9 or 13 weeks (A1, A2); 26 weeks (B, C)