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Clinical Trials List

Protocol NumberTTYPX2203
Not yet recruiting

2025-03-31 - 2028-06-30

Others

Recruiting13

ICD-10B64

Unspecified protozoal disease

ICD-10B89

Unspecified parasitic disease

ICD-10B99.9

Unspecified infectious disease

ICD-9136.9

Unspecified infectious and parasitic diseases

A Retrospective, Observational, Post-Marketing Study to Assess the Efficacy and Safety of Intravenous Infusions of Polymyxin B and Colistin Methanesulfonate in Patients with Carbapenem-Resistant Gram-Negative Bacterial Infection

  • Trial Applicant

    TTY Biopharm Company Limited

  • Sponsor

    TTY Biopharm Company Limited

  • Trial scale

    Taiwan Multiple Center

  • Update

    2026/02/01

Investigators and Locations

Principal Investigator Susan Shin-Jung Lee Division of Infectious Disease

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator 黃建賢 Division of Infectious Disease

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator 彭銘業 Division of Infectious Disease

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator 湯宏仁 Division of Infectious Disease

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator Fu-Der Wang Division of Infectious Disease

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator 李原地 Division of Infectious Disease

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator SUNG-CHING PAN Division of Infectious Disease

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator 林德宇 Division of Infectious Disease

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator YI-TSUNG LIN Division of Infectious Disease

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator Cheng-Hsun Chiu Division of Infectious Disease

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator Chun-Yu Lin Division of Infectious Disease

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator Po-Yu Liu Division of Infectious Disease

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Condition/Disease

Carbapenem-Resistant Gram-Negative Bacterial Infection

Objectives

To evaluate the efficacy of intravenous infusions of polymyxin B by sites of infection, infectious pathogens and baseline renal function on mortality, clinical response and microbiological response  To evaluate the efficacy of intravenous infusions of polymyxin B and colistin methanesulfonate based on mortality, clinical response and microbiological response

Test Drug

injection

Active Ingredient

POLYMYXIN B SULFATE

Dosage Form

245

Dosage

MG

Endpoints

 Clinical response rate of polymyxin B group by sites of infection and infectious pathogens at TOC
 Clinical response rate of two treatment groups at TOC
 Microbiological response rate of polymyxin B group by sites of infection and infectious pathogens at TOC
 Microbiological response rate of two treatment groups at TOC
 All-cause mortality of two treatment groups at Day 28
 Infection-related mortality of two treatment groups at Day 28

Inclution Criteria

1. Patient ≥ 18 years of age.
2. Patient diagnosed with bacterial pneumonia and/or bacteremia, or other physician judged serious infection (except urinary tract infection, UTI) caused by CR-GNB.
CR-GNB: resistant to at least one of the carbapenem antibiotics or produce a carbapenemase (an enzyme that can make them resistant to carbapenem antibiotics).
Diagnosis Criteria of HABP/VABP:
• Met the clinical diagnosis criteria for HABP/VABP.
HABP: Acute bacterial pneumonia in a subject hospitalized for more than 48 hours or developing within 7 days after discharge from a hospital. Subject could have experienced acute respiratory failure and required mechanical ventilation for HABP.
VABP: Acute bacterial pneumonia in a subject receiving mechanical ventilation via an endotracheal (or nasotracheal) tube for a minimum of 48 hours.
• ≥ 1 of the following clinical features: new onset or worsening of pulmonary symptoms or signs, hypoxemia, need for acute changes in the ventilator support system to enhance oxygenation, new onset of or increase in suctioned respiratory secretions.
• ≥ 1 of the following signs: documented fever, hypothermia, WBC ≥ 10,000 cells/mm3, WBC ≤ 4500 cells/mm3, >15% immature neutrophils(bands)
• CXR or lung CT: presence of new or progressive infiltrates suggestive of bacterial pneumonia.
Diagnosis Criteria of BSI/Bacteremia: the BSI/sepsis category included bacteremia or sepsis caused by infections other than HABP/VABP, or UTI:
• Documented BSI caused by a carbapenem-resistant Gram-negative pathogen; or
• Systemic response to infection, meeting the clinical criteria of SIRS and an identified infection source (eg, severe skin infection, intra-abdominal infection) caused by a carbapenem-resistant Gram-negative pathogen.
3. Patient received intravenous polymyxin B or CMS treatment for ≥72 h.
4. Administration of polymyxin B or CMS within 7 days from the infection onset day.
Infection onset day: The date of specimen collection for index pathogen.

Exclusion Criteria

1. Patient with bacteremia caused by urinary tract infection.
2. CR-GNB known to be resistant to polymyxin B or CMS.
3. Patient has infectious disease (s) caused by the following gram-negative bacteria which are known to have no response to polymyxin B and/or colistin treatment: Proteus spp., Providencia spp., Morganella spp., Serratia marcescens, Burkholderia spp., and Neisseria spp.
4. Intravenous administration of polymyxin B or colistin more than 28 days.
5. Both the treatment efficacy and safety could not be evaluated.

The Estimated Number of Participants

  • Taiwan

    480 participants

  • Global

    480 participants