Clinical trial Recruiting at 4 sites Observational Ages 18 and up

Assessing treatments for difficult-to-treat Pseudomonas infections

Official title: Antimicrobial Therapy for Infections Due to Pseudomonas Aeruginosa With Difficult-to-treat Resistance: a Real-world, Prospective, Multicenter Cohort Study

Run by Centre Hospitalier Régional d'Orléans · NCT06738771 · Data updated 2026-11-12

This study is testing different antibiotic treatments for tough Pseudomonas infections to see which ones work best for patients needing intravenous therapy.

More Prognosis trials

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment600 (estimated)
SponsorCentre Hospitalier Régional d'Orléans
Academic / other
Locations48 sites (Amiens and 47 other locations)
StatusRecruiting
StartedMarch 11, 2025
Main results expectedJanuary 2027
Study endsJanuary 2027
Registry record updatedApril 30, 2026
Trial IDNCT06738771 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are patients aged 18 or older who require intravenous antimicrobial therapy for a difficult-to-treat Pseudomonas aeruginosa infection.

Probably not a fit

Patients with cystic fibrosis or those who do not require definitive intravenous antibiotic therapy for their Pseudomonas infection 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

The ADDICT study aims to evaluate the clinical efficacy of various antimicrobial therapies for infections caused by difficult-to-treat Pseudomonas aeruginosa. This prospective, multicenter cohort study will include patients requiring intravenous therapy for these infections, comparing newer beta-lactam/beta-lactamase inhibitor combinations and cefiderocol against older agents like aminoglycosides and colistin. The study will also investigate the emergence of drug resistance and the associated adverse events. By gathering multicenter data, the study seeks to provide insights into the real-life effectiveness of these treatment options.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment options for patients with difficult-to-treat Pseudomonas infections.

How similar studies have gone: While there is limited multicenter data on the real-life utilization of these treatment options, previous studies have shown promising results with similar approaches.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* All patients aged 18 or over and requiring intravenous definite antimicrobial therapy for a DTR P. aeruginosa infection

Exclusion Criteria:

* Cystic fibrosis
* P. aeruginosa DTR colonization or P. aeruginosa DTR infection not requiring definitive intravenous antibiotic therapy
* Protected person (under guardianship or curatorship)
* Persons under court protection
* Persons deprived of liberty
* Opposition expressed for participation in the study

Where it's running

  • CHD Vendée
    La Roche-sur-Yon, France
    Recruiting
  • CHRU Nancy
    Nancy, France
    Recruiting
  • Centre Hospitalier Universitaire d'Orléans
    Orléans, France
    Recruiting
  • Hopital Bichat
    Paris, France
    Recruiting
  • CHU Amiens
    Amiens, France
    Not yet recruiting
  • CH Argenteuil
    Argenteuil, France
    Not yet recruiting
Show 42 more locations
  • CH Bayonne
    Bayonne, France
    Not yet recruiting
  • CHU de BESANCON
    Besançon, France
    Not yet recruiting
  • CH Bethune
    Béthune, France
    Not yet recruiting
  • CHU Avicenne
    Bobigny, France
    Not yet recruiting
  • CH Bourgoin-Jallieu
    Bourgoin, France
    Not yet recruiting
  • CH Métropole Savoie
    Chambéry, France
    Not yet recruiting
  • Ch de Chartres
    Chartres, France
    Not yet recruiting
  • CHU Clermont Ferrand
    Clermont-Ferrand, France
    Not yet recruiting
  • CHI Créteil
    Créteil, France
    Not yet recruiting
  • CHU Henri Mondor
    Créteil, France
    Not yet recruiting
  • CHI Elbeuf Louviers
    Elbeuf, France
    Not yet recruiting
  • CH Sud Essone
    Étampes, France
    Not yet recruiting
  • Hopital Raymond Poincaré
    Garches, France
    Not yet recruiting
  • CHU Grenoble
    Grenoble, France
    Not yet recruiting
  • CH Haguenau
    Haguenau, France
    Not yet recruiting
  • Hopital Bicetre
    Le Kremlin-Bicêtre, France
    Not yet recruiting
  • CHU Limoges
    Limoges, France
    Not yet recruiting
  • CHU Lyon Sud
    Lyon, France
    Not yet recruiting
  • CHU Lyon
    Lyon, France
    Not yet recruiting
  • CHY Lyon
    Lyon, France
    Not yet recruiting
  • Hopital Saint-Joseph Saint Luc
    Lyon, France
    Not yet recruiting
  • CHU Montpellier
    Montpellier, France
    Not yet recruiting
  • Chu de Nantes
    Nantes, France
    Not yet recruiting
  • CHU de Nice
    Nice, France
    Not yet recruiting
  • Hopital Cochin
    Paris, France
    Not yet recruiting
  • Hopital LARIBOISIERE
    Paris, France
    Not yet recruiting
  • Hopital Pitie Salpetriere
    Paris, France
    Not yet recruiting
  • Hopital Saint-Antoine
    Paris, France
    Not yet recruiting
  • Hôpital Européen Georges Pompidou
    Paris, France
    Not yet recruiting
  • Hôpital Saint-Louis
    Paris, France
    Not yet recruiting
  • Ch Pau
    Pau, France
    Not yet recruiting
  • CH Perpignan
    Perpignan, France
    Not yet recruiting
  • Centre Hospitalier de Périgueux
    Périgueux, France
    Not yet recruiting
  • CHU Reims
    Reims, France
    Not yet recruiting
  • CH Saint-Lô
    Saint-Lô, France
    Not yet recruiting
  • CHRU Strasbourg Haute Pierre
    Strasbourg, France
    Not yet recruiting
  • CHU Strasbourg
    Strasbourg, France
    Not yet recruiting
  • Hopital Foch
    Suresnes, France
    Not yet recruiting
  • CH Tourcoing
    Tourcoing, France
    Not yet recruiting
  • CH Vannes
    Vannes, France
    Not yet recruiting
  • Hôpital Nord-Ouest de Villefranche sur Saone
    Villefranche-sur-Saône, France
    Not yet recruiting
  • CHU La Réunion
    Saint-Denis, Reunion
    Not yet recruiting

Study contacts

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.