Machine Learning-Based Risk Stratification for Fistula Formation After Perianal Abscess Drainage
PRISM
A Prospective Cohort Study for Machine Learning-Based Prediction of Anal Fistula Formation After Perianal Abscess Drainage Based on Drainage Setting, Provider Experience, and MRI Interpretation (PRISM)
1 other identifier
observational
450
0 countries
N/A
Brief Summary
This prospective cohort study investigates the influence of provider experience and drainage location on fistula formation within 6 months following perianal abscess drainage. Additionally, the study explores the role of artificial intelligence (AI)-based interpretation of magnetic resonance (MR) images in early identification of fistula development.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jul 2025
Shorter than P25 for all trials
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 5, 2025
CompletedFirst Posted
Study publicly available on registry
June 13, 2025
CompletedStudy Start
First participant enrolled
July 1, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2026
ExpectedJune 13, 2025
June 1, 2025
5 months
June 5, 2025
June 5, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Fistula formation within 6 months
Confirmed by clinical exam, surgical findings, or MR imaging
6 months
Secondary Outcomes (3)
Correlation between drainage location and fistula rate
6 months
Correlation between provider experience and fistula complexity
6 months
Diagnostic accuracy of AI-based MR analysis vs radiologist
6 months
Eligibility Criteria
Adult patients (≥18 years old) undergoing surgical drainage for their first perianal abscess at a university or state hospital. Participants must not have a history of anal fistula, Crohn's disease, or be under immunosuppressive therapy. Follow-up duration is 6 months after drainage.
You may qualify if:
- Age ≥ 18
- First-time perianal abscess
- Surgical drainage performed
You may not qualify if:
- Existing anal fistula history
- Crohn's disease
- Immunosuppressive treatment
- Incomplete 6-month follow-up
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Target Duration
- 6 Months
- Sponsor Type
- OTHER GOV
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- General Surgery Specialist
Study Record Dates
First Submitted
June 5, 2025
First Posted
June 13, 2025
Study Start
July 1, 2025
Primary Completion
December 1, 2025
Study Completion (Estimated)
June 1, 2026
Last Updated
June 13, 2025
Record last verified: 2025-06
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, ICF, CSR
De-identified MR images and anonymized patient-level data will be available for collaborative analysis upon request.