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Enrolling by invitationNCT06809413Updated Feb 5, 2025

Clinical Study on the Early Bactericidal Activity of Sitafloxacin Against Mycobacterium Abscessus Disease

A Phase 2 interventional study of Sitafloxacin in Fluoroquinolone and Mycobacterium, sponsored by Beijing Chest Hospital. Enrolling by invitation at 1 site in China. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2025-02-05.

Sponsored by Beijing Chest Hospital · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by May 2025, 1 year 4 months ago, but the record still lists the study as enrolling by invitation.
Phase
Phase 2
Study type
Interventional
Enrollment
12
Allocation
Not applicable
Ages
18 Years to 65 Years
Sex
All
01

Study summary

This study is a single-center, open-label clinical trial designed to evaluate the early bactericidal activity (EBA) of sitafloxacin against Mycobacterium abscessus disease. Patients with Mycobacterium abscessus disease were enrolled and treated with sitafloxacin monotherapy for 14 days. Colony forming units (CFU) and time to positivity (TTP) in sputum cultures were analyzed and compared. By assessing the impact of sitafloxacin monotherapy on the bacteria in the sputum of patients with Mycobacterium abscessus disease, the early bactericidal activity of sitafloxacin was evaluated, providing a basis for the selection of new drugs for the treatment of Mycobacterium abscessus disease.

Read the detailed description

This study is a single-center, open-label clinical trial designed to evaluate the early bactericidal activity (EBA) of sitafloxacin against Mycobacterium abscessus disease. Patients with Mycobacterium abscessus disease were enrolled and treated with sitafloxacin monotherapy for 14 days. Colony forming units (CFU) and time to positivity (TTP) in sputum cultures were analyzed and compared. By assessing the impact of sitafloxacin monotherapy on the bacteria in the sputum of patients with Mycobacterium abscessus disease, the early bactericidal activity of sitafloxacin was evaluated, providing a basis for the selection of new drugs for the treatment of Mycobacterium abscessus disease.

Study medication: Sitafloxacin 100mg QD for 14 days.

02

Conditions studied

  • Fluoroquinolone
  • Mycobacterium

Keywords

  • Mycobacterium abscessus
  • Sitafloxacin
  • early bactericidal activity
  • Colony forming units
  • time to positivity
03

In context

Mycobacterium Infections

136 studies on the registry are indexed under Mycobacterium Infections; 17 are open to participants now.

This study's planned enrollment of 12 is below the median of 88 across 68 interventional studies indexed under Mycobacterium Infections.

Browse Mycobacterium Infections studies →

Lead sponsor

Beijing Chest Hospital is the lead sponsor of 31 studies on the registry; 13 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • (1) Diagnosed or clinically diagnosed with Mycobacterium abscessus pulmonary disease within 6 months prior to enrollment; (2) Voluntarily participate in this study and sign the informed consent form; (3) Agree to use contraception voluntarily.

Exclusion criteria

Exclusion Criteria:

  • (1) Received glucocorticoids or immunosuppressants within 90 days prior to enrollment; (2) Pregnant women or postpartum lactating women; (3) Patients with evidence of fluoroquinolone resistance or allergy.
05

Study design

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

Study arms

  • Experimental
    Sitafloxacin group

    This study intends to enroll 12 patients with Mycobacterium abscessus infections. They will be administered sitafloxacin continuously for 14 days, and sputum samples will be collected for colony-forming units counting and time to positivity observation to evaluate the efficacy of the antibacterial agent. Study Medication: Sitafloxacin 100mg once daily for 14 days.

    Drug: Sitafloxacin

Interventions

  • DrugSitafloxacin

    Study medication: Sitafloxacin 100mg QD for 14 days.

06

What researchers measure

Primary outcomes

  1. Early bactericidal activity

    Patients with Mycobacterium abscessus infections were enrolled and treated with sitafloxacin monotherapy for 14 days to assess its early bactericidal activity. This involved analyzing and comparing the colony-forming units and time to positivity in sputum cultures to evaluate the impact of sitafloxacin on the bacteria in the sputum of patients with Mycobacterium abscessus infections.

    Time frame: 14 days

07

Study locations

1 site
  • Beijing chest hospital affiliated to Capital medical university, Beijing Tuberculosis & Thoracic Tumor Research Institute
    Beijing, Beijing 101149, China
08

References and documents

Individual participant data

Plan to share: No — In our hospital, researchers are not allowed to upload patient data or hospital information to websites without authorization.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 5, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06809413
Lead sponsor
Beijing Chest Hospital
Responsible party
Nie WenJuan (chief physician, Beijing Chest Hospital) — Principal investigator
First posted
Feb 5, 2025
Start date
Jan 28, 2025
Primary completion
May 31, 2025 (estimated)
Completion
May 31, 2025 (estimated)
Last update
Feb 5, 2025

Oversight

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

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