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.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 600 (estimated) |
| Sponsor | Centre Hospitalier Régional d'Orléans Academic / other |
| Locations | 48 sites (Amiens and 47 other locations) |
| Status | Recruiting |
| Started | March 11, 2025 |
| Main results expected | January 2027 |
| Study ends | January 2027 |
| Registry record updated | April 30, 2026 |
| Trial ID | NCT06738771 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
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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
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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
- Principal investigator: Francois BARBIER, Professor — Centre Hospitalier Universitaire d'Orléans
- Study coordinator: FRANCOIS BARBIER, Professor
- Email: francois.barbier@chu-orleans.fr
- Phone: +33238229939
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Single antibiotic versus two antibiotics for Pseudomonas bone infection
This study will test whether one antibiotic works as well as two for adults with bone infections caused by Pseudomonas aeruginosa.
-
Aztreonam-Avibactam in Immunocompromised Patients with Multidrug-Resistant Infections
This study tests how well and how safely aztreonam-avibactam works in adults with weakened immune systems who have highly resistant Enterobacterales infections.
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Using integron tests to guide first-line antibiotics for non-severe UTI in adults
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This project will test whether adding multi-parameter stress perfusion cardiac MRI to routine clinical data can better predict which people with dilated cardiomyopathy will go on to develop heart failure, arrhythmias, hospitalizations, or death.
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.