Validation of the Odesa Criteria 2026 for Autoimmune Pancreatitis

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorMilitary Medical Clinical Center of the Southern Region, Ukraine

About this trial

This ambispective observational study aims to validate the Odesa Criteria 2026 (OC26), a flexible domain-based point scoring system for diagnosing autoimmune pancreatitis. The study evaluates diagnostic accuracy and reproducibility of OC26 across clinical, serological, morphological, and histological domains.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Adults (≥18 years) undergoing evaluation for suspected autoimmune pancreatitis.

Availability of clinical, serological, imaging, and/or histological data required for OC26 scoring.

Ability to provide informed consent (for prospective participants).

Disqualifiers

Confirmed alternative diagnosis explaining pancreatic findings (e.g., pancreatic cancer, acute pancreatitis of other etiology).

Incomplete diagnostic data preventing OC26 scoring.

Prior pancreatic surgery altering diagnostic interpretation.

Trial population

Patients undergoing diagnostic evaluation for suspected autoimmune pancreatitis at a tertiary referral center. The study includes both retrospective cases with complete diagnostic data and prospective participants evaluated according to the Odesa Criteria 2026 (OC26).

Trial design

Design model

Cohort

Time perspective

Other

Treatments tested in this trial

  • No intervention (observational study)

    Other intervention

    Participants receive no assigned intervention. Diagnostic evaluation follows routine clinical practice.

Treatment groups

82 Participants
are divided into 1 treatment group
Group A: AIP Suspected Cohort1 intervention

Trial outcomes

Primary outcomes

1

Diagnostic accuracy of the Odesa Criteria 2026 (OC26) as a domain-based scoring system for autoimmune pancreatitis

Evaluation of the diagnostic performance of the Odesa Criteria 2026 (OC26), a domain-based point scoring system for autoimmune pancreatitis (AIP). The analysis includes calculation of sensitivity, specificity, positive predictive value, negative predictive value, likelihood ratios, and overall diagnostic accuracy using final clinical diagnosis as the reference standard.

Time frame
At completion of baseline diagnostic assessment

Secondary outcomes

1

Interobserver agreement for OC26 domain scoring

Assessment of interobserver agreement for each domain of the Odesa Criteria 2026 (OC26), including morphology, serology, clinical features, and histology. Agreement will be quantified using Cohen's kappa (κ) statistics for categorical items and intraclass correlation coefficients (ICC) for continuous or ordinal components. The analysis evaluates reproducibility of domain-level scoring among independent reviewers.

Time frame
At completion of baseline diagnostic workup
2

Diagnostic performance of individual OC26 domains

Evaluation of the diagnostic performance of each OC26 domain (morphology, serology, clinical, histology) in identifying autoimmune pancreatitis. For each domain, sensitivity, specificity, positive predictive value, negative predictive value, and area under the ROC curve (AUC) will be calculated using final clinical diagnosis as the reference standard.

Time frame
At completion of baseline diagnostic workup
3

ROC curve analysis for total OC26 score

Receiver operating characteristic (ROC) curve analysis of the total OC26 score to determine its discriminative ability for diagnosing autoimmune pancreatitis. The area under the curve (AUC) will be calculated, and performance will be compared across predefined subgroups.

Time frame
At completion of baseline diagnostic workup
4

Optimal cut-off value for OC26 total score

Determination of the optimal diagnostic cut-off for the OC26 total score using Youden's index and other threshold-optimization methods. Sensitivity, specificity, and accuracy at the optimal cut-off will be reported.

Time frame
At completion of baseline diagnostic workup

Other outcomes

Sponsors and contacts

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