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RecruitingNCT06595979Updated Sep 19, 2024

Intraventricular Administration of Intracranial Infections Caused by (Carbapenem-resistant Gram-negative Bacilli)CRGNB

An observational study in Intracranial Infections, sponsored by Second Affiliated Hospital, School of Medicine, Zhejiang University. Recruiting at 3 sites in China. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2024-09-19.

Sponsored by Second Affiliated Hospital, School of Medicine, Zhejiang University · Observational

From the registry’s dates

  • Primary completion was expected by Jun 2026, 4 months ago, but the record still lists the study as recruiting.
  • Started Jun 2024; still recruiting 2 years 3 months later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
222
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This clinical trial aims to compare two methods of administering polymyxin B for treating severe brain infections caused by carbapenem-resistant Gram-negative bacteria (CRGNB). The two methods are: 1) delivering polymyxin B directly into the brain (intracranial administration) and 2) combining this with an intravenous (IV) infusion. The goal is to determine which approach is more effective in clearing the infection, improving patient outcomes, and influencing the concentration of polymyxin B in the cerebrospinal fluid (CSF). Participants in this study will be monitored for both effectiveness and safety, with a focus on CSF polymyxin B levels, to find the best treatment strategy for these challenging infections.

02

Conditions studied

  • Intracranial Infections

Keywords

  • Polymyxin B
  • Intracranial Administration
  • Carbapenem-Resistant Gram-Negative Bacteria
  • Intracranial infection
03

In context

Infections

6,687 studies on the registry are indexed under Infections; 807 are open to participants now.

This study's planned enrollment of 222 is close to the median of 240 across 2,136 observational studies indexed under Infections.

Browse Infections studies →

Lead sponsor

Second Affiliated Hospital, School of Medicine, Zhejiang University is the lead sponsor of 1,058 studies on the registry; 511 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Sampling method
Probability sample

Study population

Withdrawal Criteria:

  1. Patient requests to withdraw from the study.
  2. Patient's cerebrospinal fluid drug concentration results do not pass quality control center approval.

Inclusion criteria

  1. Age ≥ 18 years old, regardless of gender.
  2. Patients with cerebrospinal fluid (CSF) cultures showing carbapenem-resistant Gram-negative bacteria (such as Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa) and polymyxin MIC ≤ 0.5 µg/ml.
  3. Diagnosed with intracranial infection and have been receiving polymyxin B treatment for at least 5 days, with an external ventricular drain (EVD) in place for continuous drainage.

Exclusion criteria

Exclusion Criteria:

  1. Patients with known allergy to polymyxin B or other severe allergic histories that may affect the study.
  2. Pregnant women or other conditions that the investigator deems unsuitable for participation in the study.
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
222 participants (estimated)
Patient registry
No
Biospecimen retention
Samples without dna

Groups and cohorts

  • Intracranial Administration Group

    Participants in this group will receive polymyxin B administered directly into the brain (intracranial administration) without intravenous (IV) infusion.

    Drug: Polymyxin B

  • Intracranial Administration with IV Infusion Group

    Participants in this group will receive polymyxin B both intracranially and via intravenous infusion.

    Drug: Polymyxin B

Interventions

  • DrugPolymyxin B

    Participants in this group will receive polymyxin B administered directly into the brain (intracranial administration) without intravenous (IV) infusion.

06

What researchers measure

Primary outcomes

  1. 30-Day All-Cause Mortality Rate

    The proportion of participants who die from any cause within 30 days of treatment initiation. This measure will help evaluate the overall survival impact of the treatment methods.

    Time frame: 30 days from the start of treatment

  2. CSF Bacterial Clearance

    The rate at which bacteria are cleared from the cerebrospinal fluid (CSF). This will be assessed through CSF cultures and laboratory tests at designated time points to determine the effectiveness of the intervention in eradicating the infection.

    Time frame: Baseline, 1 week, 2 weeks, and 30 days after initiation of treatment.

  3. Clinical Cure Rate

    The proportion of participants who achieve clinical cure, defined as the resolution of symptoms and signs of infection, assessed by clinical examination and relevant diagnostic criteria at the end of the study or follow-up period.

    Time frame: At the end of treatment (defined as the last day of the planned treatment regimen) and 30 days post-treatment

07

Study locations

3 of 3 sites recruiting
  • The Second Affiliated Hospital, Zhejiang University School of Medicine
    Hangzhou, Zhejiang 310000, China
    • huifang jiang, master · Contact · fangfang93@zju.edu.cn
    • haibi haibindai@zju.edu.cn, Doctorate · Contact
    Recruiting
  • Ningbo Medical Center Lihuili Hospital
    Ningbo, Zhejiang 315000, China
    Recruiting
  • The First Affiliated Hospital of Wenzhou Medical University
    Wenzhou, Zhejiang 325000, China
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 19, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06595979
Lead sponsor
Second Affiliated Hospital, School of Medicine, Zhejiang University
Collaborators
Ningbo Medical Center Lihuili Hospital, First Affiliated Hospital of Wenzhou Medical University
Responsible party
Sponsor
First posted
Sep 19, 2024
Start date
Jun 25, 2024
Primary completion
Jun 2026 (estimated)
Completion
Dec 2026 (estimated)
Last update
Sep 19, 2024

Study contacts

huifang jiang, master
Contact
fangfang93@zju.edu.cn
+8613567147275
yangmin hu, Master
Contact
haibin dai, Doctorate
principal investigator · Second Affiliated Hospital, School of Medicine, Zhejiang University

Oversight

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

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