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Antibiotic Duration in Post-appendectomy Abscess

A Prospective, Randomized Trial of Antibiotic Duration in Post-appendectomy Abscess

Status
Terminated
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03795194
Enrollment
7
Registered
2019-01-07
Start date
2019-05-01
Completion date
2021-12-15
Last updated
2024-03-08

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

Conditions

Complicated Appendicitis, Perforated Appendicitis

Brief summary

This is a randomized study of patients 2-17 years old who are diagnosed with perforated appendicitis and develop an abscess after laparoscopy that is subsequently drained. Patients will be randomized to either receive an 8-day or a 4-day course of antibiotics. The aim of this study is to determine whether duration of antibiotic treatment at discharge demonstrates significant differences in clinical outcomes.

Detailed description

The central aim of this study is to determine whether duration of antibiotic treatment at discharge demonstrates significant differences in primary and secondary clinical outcomes. Specifically, this research aims to determine whether the readmission rate and length of stay for pediatric patients diagnosed with perforated appendicitis who form a post-laparoscopic abscess that is treated with percutaneous drainage and are treated with a 8-day oral antibiotic regimen at discharge is significantly different from those treated with a fixed 4-day regimen at discharge. This study includes patients ages 2-17 years old who present with perforated appendicitis-as diagnosed at laparoscopy and photographed as either a hole or as feces in the abdomen-and who develop an abscess after laparoscopy that is treated with percutaneous drainage. All post-laparoscopic abscess patients will receive the standard of care for antibiotic therapy at Phoenix Children's Hospital-IV ceftriaxone/metronidazole-until afebrile and tolerating food. All patients will be treated with the PCH standard of care and receive in-patient treatment for abscess until afebrile. At discharge, study patients will be randomly assigned to either an 8-day ampicillin/clavulanate regimen or a 4-day ampicillin/clavulanate regimen. Pediatric patients who are allergic to ampicillin will be excluded from the study. Patients will be followed thirty days post discharge to assess clinical outcomes.

Interventions

DRUGampicillin/clavulanate

FDA-approved antibiotic

Sponsors

Phoenix Children's Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
2 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

* Age: 2 to 17 years of age * Diagnosis of perforated appendicitis at laparoscopy * Development of a post-appendectomy abscess that is treated with percutaneous drainage.

Exclusion criteria

* Patients who are allergic to ampicillin

Design outcomes

Primary

MeasureTime frameDescription
Hospital Readmission Rate30 daysRate of readmission to the hospital after abscess drainage.
Length of Hospital Stay30 daysHow many days patient stays in the hospital if and when they are readmitted after their abscess drainage.

Countries

United States

Participant flow

Participants by arm

ArmCount
Arm A (8-day)
In this study, all patients will be treated with the hospital standard of care and receive in-patient treatment for abscess until afebrile and tolerating food for 24 hours. After percutaneous drainage of the abscess, the patient will be randomly assigned to receive either an 8-day regimen (arm A) or a 4-day regimen (arm B) of antibiotics (Diagram 1). Patients will remain on IV ceftriaxone/metronidazole or other broad spectrum antibiotic equivalent until afebrile and tolerating food for 24 hours. Patients will complete their assigned 4- or 8-day regimen with oral ampicillin clavulanate or other broad spectrum antibiotic equivalent. If patients are not afebrile at the completion of their assigned regimen, prescribing an extended course of antibiotics is at the discretion of the treating surgeon. A prescribed oral course of antibiotics may be finished in the hospital or at home if patient is discharged.
3
Arm B (4-day)
In this study, all patients will be treated with the hospital standard of care and receive in-patient treatment for abscess until afebrile and tolerating food for 24 hours. After percutaneous drainage of the abscess, the patient will be randomly assigned to receive either an 8-day regimen (arm A) or a 4-day regimen (arm B) of antibiotics (Diagram 1). Patients will remain on IV ceftriaxone/metronidazole or other broad spectrum antibiotic equivalent until afebrile and tolerating food for 24 hours. Patients will complete their assigned 4- or 8-day regimen with oral ampicillin clavulanate or other broad spectrum antibiotic equivalent. If patients are not afebrile at the completion of their assigned regimen, prescribing an extended course of antibiotics is at the discretion of the treating surgeon. A prescribed oral course of antibiotics may be finished in the hospital or at home if patient is discharged.
4
Total7

Baseline characteristics

CharacteristicArm A (8-day)TotalArm B (4-day)
Age, Continuous15.34 Years
STANDARD_DEVIATION 2.48
12.09 Years
STANDARD_DEVIATION 4.2
9.65 Years
STANDARD_DEVIATION 3.56
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants3 Participants2 Participants
Race (NIH/OMB)
White
2 Participants4 Participants2 Participants
Region of Enrollment
United States
3 participants7 participants4 participants
Sex: Female, Male
Female
1 Participants2 Participants1 Participants
Sex: Female, Male
Male
2 Participants5 Participants3 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 30 / 4
other
Total, other adverse events
0 / 30 / 4
serious
Total, serious adverse events
0 / 30 / 4

Outcome results

Primary

Hospital Readmission Rate

Rate of readmission to the hospital after abscess drainage.

Time frame: 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm A (8-Day) 30-day Readmission RateHospital Readmission Rate0 Participants
Arm B (4-Day) 30-day Readmission RateHospital Readmission Rate0 Participants
Primary

Length of Hospital Stay

How many days patient stays in the hospital if and when they are readmitted after their abscess drainage.

Time frame: 30 days

Population: Participants were not readmitted to the hospital after abscess drainage.

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