Clinical trial Recruiting at 2 sites Observational Ages 18 and up

Evaluating the effectiveness of CAZ/AVI and FOS for treating CRE infections

Official title: PK/PD Relationship of CAZ/AVI and FOS in the Treatment of Patients With Infections Due to Carbapenem-resistant Enterobacterales (CRE)

Run by IRCCS Azienda Ospedaliero-Universitaria di Bologna · NCT06717594 · Data updated 2026-11-12

This study is testing whether a combination of two antibiotics, ceftazidime/avibactam and fosfomycin, can help adults with tough infections caused by drug-resistant bacteria feel better.

More Gram Negative Infections trials

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment60 (estimated)
SponsorIRCCS Azienda Ospedaliero-Universitaria di Bologna
Academic / other
Locations2 sites (Bologna, Bologna and 1 other locations)
StatusRecruiting
StartedDecember 1, 2023
Main results expectedSeptember 30, 2026
Study endsDecember 31, 2026
Registry record updatedJune 12, 2026
Trial IDNCT06717594 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older who have been treated for at least 48 hours with CAZ/AVI or CAZ/AVI plus FOS for a microbiologically confirmed CRE infection.

Probably not a fit

Patients with polymicrobial infections or those not meeting the inclusion criteria may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This multicenter international observational study focuses on adult patients with infections caused by carbapenem-resistant Enterobacterales (CRE). It aims to assess the efficacy of ceftazidime/avibactam (CAZ/AVI) alone or in combination with fosfomycin (FOS) in achieving optimal drug exposure and patient response. The study will analyze pharmacokinetics and pharmacodynamics to determine the best treatment approaches for these challenging infections. By documenting patient outcomes, the study seeks to establish a standardized approach to managing CRE infections.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment strategies for patients suffering from severe infections due to antibiotic-resistant bacteria.

How similar studies have gone: While the approach of combining CAZ/AVI with FOS has shown promise in vitro, this specific observational study is novel and aims to provide real-world evidence.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Signature of the informed consent
* Age ≥ 18 years
* Adult patients treated for ≥ 48 hours with CAZ/AVI or CAZ/AVI plus FOS for a microbiologically documented CRE infection

Exclusion Criteria:

* Polymicrobial/mixed infections with exception of cases with multiple Enterobacterales susceptible to study drugs

Where it's running

  • IRCCS Azienda Ospedaliero-Universitaria di Bologna
    Bologna, Bologna, Italy
    Recruiting
  • Instituto de Biomedicina de Sevilla (IBiS), Hospital Virgen Macarena/CSIC/Universidad de Sevilla
    Seville, Seville, Spain
    Recruiting

Study contacts

  • Principal investigator: Maddalena Giannella, MD PhD — IRCCS Azienda Ospedaliero-Universitaria di Bologna
  • Study coordinator: Maddalena Giannella, MD PhD
  • Email: maddalena.giannella@unibo.it
  • Phone: +390512143199

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.