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Colistin Monotherapy vs Colsitin-fosfomycine in CRAB Infection

Efficacy of Colistin Monotherapy Versus Colistin Combined With Fosfomycin Against Carbapenem-Resistant Acinetobacter Baumannii Infections

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06570850
Enrollment
188
Registered
2024-08-26
Start date
2023-04-01
Completion date
2025-07-31
Last updated
2024-08-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Infection Due to Carbapenem Resistant Acinetobacter

Keywords

carbapenem resistant Acinetobacter baumanni, CRAB, Colistin, Fosfomycin

Brief summary

The goal of this clinical trial is to evaluate the efficacy of colistin compared with colistin plus fosfomycin against carbapenem-resistant Acinetobacter baumanii infection in Thailand. The main questions it aims to answer the following main questions: 1. Which group has better clinical response at end of treatment 2. Which group has better clinical response at 72 hours and micrological cure at 72 hours and at end of treatment

Detailed description

Participants will be randomized in a 1:1 ratio to receive a combination of intravenous colistin plus intravenous fosfomycin (combination group) or colistin alone (monotherapy group) to determine if monotherapy or combination therapy has a better outcome.

Interventions

DRUGColistin Sodium Methanesulfonate

Intravenous colistin (colistinmethate soidum) 5 mg/kg/day intravenous (dosage will be adjusted according to creatinine clearance). The duration of treatment ranges from 10 to 14 days, depending on the site of infection and clinical responsiveness.

DRUGColistin Sodium Methanesulfonate plus Fosfomycin

Intravenous colistin(dosage is same as colistin group) plus intravenous fosfomycin(dosage will be adjusted according to MIC and creatinine clearance). The duration of treatment ranges from 10 to 14 days, depending on the site of infection and clinical responsiveness.

Sponsors

Chiang Mai University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* ≥ 20 years old patients who have CRAB infections (pneumonia, urinary tract infection, skin and soft tissue infection, bloodstream infection) * Able to provide informed consent or having a legal proxy who can provide informed consent in case the subject is unable to provide consent on his own

Exclusion criteria

* Minimum inhibitory concentration (MIC) of colistin \> 2 mg/L * Complicated infection with inadequate source controlled * Intracranial infection * Infective endocarditis * Intraabdominal infection * Bone and joint infection * Allergic to or have contraindication(s) to any treatment regimen in the study * Polymicrobial infection with Carbapenem-resistant Psuedomonas aeruginosa, Carbapenem-resistant Enterobacterales (CRE), Vancomycin-resistant Enterococcus (VRE) * Pregnancy * Previous treatment with colistin or fosfomycin more than 96 hours * Life expectancy of 24 hour or less * Refusal to participate in the study * Hospice treatment

Design outcomes

Primary

MeasureTime frameDescription
Number of participants with clinical response after completion of therapyBaseline, day 10-14 (end of therapy)Clinical response are categorized as: clinical cure if participants recover all symptoms and signs of infection; partial response if they disappear only some of the initial symptoms and signs of infection, including the condition not fulfilling all the requirements for clinical cure; and clinical failure if participants have persistence or worsening of all symptoms and signs of infection despite antimicrobial treatment.

Secondary

MeasureTime frameDescription
Number of participants with clinical response at 72 hours of therapyBaseline, day 3Clinical response are categorized as: clinical cure if participants recover all symptoms and signs of infection; partial response if they disappear only some of the initial symptoms and signs of infection, including the condition not fulfilling all the requirements for clinical cure; and clinical failure if participants have persistence or worsening of all symptoms and signs of infection despite antimicrobial treatment.
Number of participants with microbiological cure at 72 hours of therapyBaseline, day 3Microbiological cure: no isolation of the causative agent in the infective site at 72 hours and end of treatment Microbiological failure: persistence of the causative agent in the infective site at 72 hours
Number of participants with microbiological cure after completion of therapyBaseline, day 3Microbiological cure: no isolation of the causative agent in the infective site at 72 hours and end of treatment Microbiological failure: persistence of the causative agent in the infective site at 72 hours

Countries

Thailand

Contacts

Primary ContactAthitaya Luangnara
fenejung2@gmail.com0954970567
Backup ContactParichat Salee
parichat.pimsarn@gmail.com0817830755

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026