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UTI Reference Standard: Delphi Method

Development of a Research Reference Standard for Urinary Tract Infection Using a Modified Delphi Technique

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05365906
Acronym
ORACLE
Enrollment
47
Registered
2022-05-09
Start date
2022-04-12
Completion date
2023-02-23
Last updated
2023-03-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Urinary Tract Infections

Brief summary

This study is set up by an international core group consisting of infectious disease specialists, geriatricians, urologists, microbiologists, emergency physicians and primary care physicians to develop a consensus-based research definition of urinary tract infections. The absence of such a reference standard leads to misclassification bias and heterogeneity between studies making progress in the field of UTI difficult, for example with much needed near patient diagnostic tests.

Interventions

OTHERDelphi-procedure consisting of four survey rounds

This study will use a modified Delphi approach, consisting of a set of iterative questionnaires. In round 1, an expert panel will grade the relevance of UTI-related items, after which a smaller core research team will compose a reference standard in a series of (online) meetings. In round 2, clinical vignettes will be used to party validate the reference standard and expert panel agreement with the new reference standard will be assessed.

Sponsors

Leiden University Medical Center
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

* Medical specialist working in the following fields: infectious diseases, urology, geriatric medicine, acute/emergency medicine, intensive care medicine, microbiology, and primary care * Clinical and/or research experience with urinary tract infections

Exclusion criteria

* Residency not completed yet * Working in a different field than described above

Design outcomes

Primary

MeasureTime frameDescription
ConsensusThrough study completion, an average of 7 monthsThe primary study endpoint is the degree of consensus among the expert panel regarding the ORACLE reference standard. In round 1, consensus is defined as follows: An item is deemed indicative of UTI in case of a panel median of 7-9, without disagreement; uncertain in case of a panel median of 4-6 OR any median with disagreement; and not indicative of UTI in case of a panel median of 1-3, without disagreement. Disagreement exists when more than a third of responses are in the upper and the lower tertiles for the item in question In round 2, consensus is not predefined (i.e. with a minimum percentage). Instead, the level of agreement with a preliminary reference standard will be assessed by a dichotomous yes/no question and experts will have the possibility to give feedback on the reference standard. Thereafter, the adjusted reference standard will be presented and the level of agreement (and relative improvement) will be assessed by a dichotomous yes/no question again.

Countries

Netherlands

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026