Clinical trial Recruiting at 1 site Observational Ages 18 and up

Research on complicated urinary tract infections

Official title: POS-cUTI:Perpetual Observational Study on Complicated Urinary Tract Infections

Run by European Clinical Research Alliance for Infectious Diseases (ECRAID) · NCT05458700 · Data updated 2026-11-12

This study is trying to gather information on complicated urinary tract infections to better understand their causes and see if existing medications or new treatments can help people who suffer from them.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment16000 (estimated)
SponsorEuropean Clinical Research Alliance for Infectious Diseases (ECRAID)
Academic / other
Locations1 site (Seville, Sevilla)
StatusRecruiting
StartedOctober 10, 2022
Main results expectedDecember 1, 2026
Study endsMarch 1, 2027
Registry record updatedSeptember 10, 2026
Trial IDNCT05458700 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are individuals with documented microbial pathogens causing urinary tract infections, accompanied by specific clinical symptoms and underlying urinary tract abnormalities.

Probably not a fit

Patients without a documented microbial pathogen or those not exhibiting the required clinical symptoms 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 observational study focuses on complicated urinary tract infections (cUTIs), which are a significant cause of morbidity and mortality. It aims to collect detailed information on microbial pathogens associated with UTIs, their clinical manifestations, and the impact of anatomical or functional abnormalities in the urinary tract. The study will utilize data from various European clinical research networks to enhance understanding and treatment approaches for cUTIs, including the potential repurposing of existing drugs and exploring non-antibiotic therapies.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment strategies for patients suffering from complicated urinary tract infections.

How similar studies have gone: Other studies have shown success in addressing complicated urinary tract infections through similar observational approaches, indicating potential for meaningful advancements.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* A documented microbial pathogen on culture of blood OR urine according to standards of interpretation regarding to the type of infection, pathogen, quantitative culture results and sample. Guide for adequate interpretation is detailed in Lab Manual. However, if the local laboratory uses diferent microbiological criteria, patients will be elegible and the criteria used will be collected AND
* Local and systemic signs and symptoms of UTI including at least one of these two: (a) fever (i.e.,temperature greater than 38ºC), chills or malaise; and (b) flank pain, back pain, costo-vertebral angle pain or tenderness, dysuria or urinary urgency, AND
* It occurs in the presence of a functional or anatomical abnormality of the urinary tract or in the presence of catheterization, including (but not limited to) presence of a urinary catheter; 100 mL or more of residual urine after voiding (neurogenic bladder); obstructive uropathy (nephrolithiasis, fibrosis); azotemia caused by intrinsic renal disease; urinary retention, including retention caused by benign prostatic hypertrophy.
* Patients with pyelonephritis or bacteremia with a urinary tract source, regardless of underlying abnormalities of the urinary tract, are also to be included.
* Patients with urinary catheter presenting with fever, bacteriuria and bacteraemia caused by the same urinary pathogen can be included if other sources of bacteraemia are reasonably discarded.
* Depending on the country regulation: The patient, family or legally authorised representative signed the informed consent to participate or; notification of non-objection to the use of pseudo-anonymized personal and medical data.

Exclusion Criteria:

* Patients with a life expectancy previous to development of cUTI \<30 days and those exclusively under palliative care in whom any eventually needed invasive procedure would not be performed.
* Patients who died in \<48 hours since the presentation with cUTI
* Patients participating in RCT for treatment of cUTI
* \>96 hours since from the clinical diagnosis of cUTI. I.e. \>96 hours from positive urine/blood culture.

Where it's running

  • Hospital Universitario Virgen Macarena
    Seville, Sevilla, Spain
    Recruiting

Study contacts

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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.