# Perianal Abscess Recurrence and Fistula Formation: Antibiotics Following Incision and Drainage Trial

> **NCT04549311** · PHASE3 · COMPLETED · sponsor: **Sunnybrook Health Sciences Centre** · enrollment: 15 (actual)

## Conditions studied

- Perianal Abscess
- Perianal Fistula

## Interventions

- **DRUG:** Antibiotic 1 arm (amoxicillin + clavulanic acid)
- **DRUG:** Antibiotic 2 arm (ciprofloxacin + metronidazole)

## Key facts

- **NCT ID:** NCT04549311
- **Lead sponsor:** Sunnybrook Health Sciences Centre
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-11-18
- **Primary completion:** 2023-01-22
- **Final completion:** 2023-01-22
- **Target enrollment:** 15 (ACTUAL)
- **Last updated:** 2026-01-12


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04549311

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04549311, "Perianal Abscess Recurrence and Fistula Formation: Antibiotics Following Incision and Drainage Trial". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT04549311. Licensed CC0.

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