Using integron tests to guide first-line antibiotics for non-severe UTI in adults
Official title: INterest of the Negative Predictive Value of Integrons in the reduCtion of Large Broad-spectrum anTibiotics Consumption for Urinary Tract infectionS: a Randomized Trial
Run by University Hospital, Limoges · NCT07675018 · Data updated 2026-11-12
This trial tests whether detecting integrons in urine can help doctors choose appropriate antibiotics for adults with non-severe urinary tract infections who had a resistant gram-negative infection in the past.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 204 (estimated) |
| Sponsor | University Hospital, Limoges Academic / other |
| Locations | 7 sites (Chambray-lès-Tours and 6 other locations) |
| Status | Recruiting |
| Started | September 20, 2026 |
| Main results expected | September 26, 2028 |
| Study ends | September 26, 2028 |
| Registry record updated | October 30, 2026 |
| Trial ID | NCT07675018 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (18+) with non-severe UTI requiring hospital or ED care, prior documentation of 3GC-resistant Gram-negative bacteria in the last 6 months, and need for empirical parenteral therapy.
✕Probably not a fit
Patients without prior 3GC-resistant infections or with integron results not influencing outcomes may see no benefit from the testing strategy.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This multicenter prospective trial explores whether a molecular test for integrons can guide initial antibiotic therapy for adults with non-severe UTIs. In the experimental arm, positive integron detection leads clinicians to use broad-spectrum options; negative results lead to a narrower, cephalosporin-based approach. The study builds on prior data showing high negative predictive value of integrons for resistance, aiming to reduce unnecessary use of broad-spectrum antimicrobials. Eligible patients are adults with non-severe UTI, fever criteria, documented prior 3GC-resistant bacteria, and requiring parenteral therapy. Outcomes will compare empirical therapy choices and antibiotic exposure between the integron-guided and standard empiric therapy approaches.
Why it matters
Potential benefit: If successful, patients could receive effective first-line antibiotics with less broad-spectrum use, reducing resistance pressure and potential side effects.
How similar studies have gone: Earlier IRIS study showed high negative predictive value of integrons for 3GC resistance, supporting exploration in guiding therapy, though direct impact on empirical treatment in UTIs needs confirmation.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age ≥ 18 years old; Hospitalized or admitted to the Emergency department; * Diagnosis of non-severe (qSOFA \< 2) urinary tract infection coupled with fever ≥ 38°C or \< 36°C * Presence of bacteria in the fresh urine sample and/or GNB on the Gram stain * Empirical parenteral antibiotic therapy required; Hospitalization required; * Former documentation of a 3GC-resistant GNB on a microbiological sample in the previous six months * Informed consent of the patient or their representative Exclusion Criteria: * Pregnant and/or breastfeeding * Neutropenia (absolute neutrophil count \< 500 / mm3) * Severe UTI with sepsis (qSOFA ≥ 2) or septic shock * Urinary derivation required (ureteral catheter/per-cutaneous nephrostomy) except for simple urinary catheterization * Known allergy to β-lactams * Patients with a former documentation with carbapenemase-producing Enterobacterales in the last 6 months * Ongoing antibiotic treatment with 3GC, piperacillin-tazobactam or carbapenem * Not affiliated to Social Security
Where it's running
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Limoges university hospital
Limoges, France Recruiting -
CHRU Tours, Hôpital Trousseau
Chambray-lès-Tours, France Not yet recruiting -
Grenoble university hospital
La Tronche, France Not yet recruiting -
Hopital lariboisière
Paris, France Not yet recruiting -
Hôpital Saint Louis - APHP
Paris, France Not yet recruiting -
Groupe Hospitalier Universitaire Bichat-Claude Bernard - APHP
Paris, France Not yet recruiting
Show 1 more location
-
CHU de Reims
Reims, France Not yet recruiting
Study contacts
- Study coordinator: Olivier BARRAUD, MD
- Email: olivier.barraud@chu-limoges.fr
- Phone: 055505665
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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.