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CompletedNCT03289351Updated Jan 12, 2024Results posted

Two Different Antibiotics Versus One Antibiotic for Pediatric Perforated Appendicitis

A Phase 4 interventional study of Piperacillin, Tazobactam Drug Combination in Perforated Appendicitis and Postoperative Infection, sponsored by Phoenix Children's Hospital. Completed at 2 sites in United States. Open to participants aged Up to 18 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-01-12.

Sponsored by Phoenix Children's Hospital · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Registered 3 months after the study started (first participant enrolled May 2017, registered Sep 2017).
Phase
Phase 4
Study type
Interventional
Enrollment
162
Allocation
Randomized
Ages
Up to 18 Years
Sex
All
01

Study summary

After appendix has been removed for perforated appendicitis, patients will receive postoperative antibiotics. In the last 5 years, the literature has transitioned from a 3 -drug therapy to 2-drug therapy. Now there is a recent literature suggesting a single-drug therapy may be safe and adequate. In fact, using zosyn (piperacillin-tazobactam) as a single-drug therapy, there are additional benefits of simplicity, compliance, and lower infectious complications. Currently surgeons are already using both 2-drug regimen (ceftriaxone/metronidazole) and single-drug regimen (zosyn) interchangeable as both are FDA approved and regulated antibiotics for intra-abdominal infection. There is a clear need to compare outcomes between these two options.

Read the detailed description

The diagnosis of perforated appendicitis will be documented intraoperatively with photos of extraluminal fecal contents or visible holes on the appendix. Patients will be randomized to 121 in each arm. Postoperative antibiotic therapy option will be decided based on blinded sequence model. 30 day postoperative follow up visit or calls will be made to assess and collect infectious complications.

02

Conditions studied

  • Perforated Appendicitis
  • Postoperative Infection

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03

In context

Appendicitis

419 studies on the registry are indexed under Appendicitis; 67 are open to participants now.

This study's enrollment of 162 is above the median of 111 across 252 interventional studies indexed under Appendicitis.

Browse Appendicitis studies →

Lead sponsor

Phoenix Children's Hospital is the lead sponsor of 42 studies on the registry; 8 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Up to 18 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Postoperative Perforated Appendicitis (documented by intraoperative photo)
  • Postoperative Laparoscopic Appendectomy

Exclusion criteria

Exclusion Criteria:

  • Nonperforated Gangrenous Appendicitis
  • Nonperforated Purulent Appendicitis
  • Open Appendectomy
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Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
162 participants (actual)

Study arms

  • No intervention
    2-drug Therapy

    ceftriaxone/metronidazole

  • Experimental
    1-drug Therapy

    piperacillin-tazobactam

    Drug: Piperacillin, Tazobactam Drug Combination

Interventions

  • DrugPiperacillin, Tazobactam Drug Combination

    Single drug therapy

    Also known as: piperacillin-tazobactam, Zosyn

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What researchers measure

Primary outcomes

  1. Number of Participants With a Postoperative Intra-abdominal Abscess

    Intra-abdominal abscess documented by ultrasound or computerized tomography

    Time frame: 30 days

Secondary outcomes

  1. Number of Participants With Postoperative Surgical Site Infection

    surgical site infections including superficial port site infection

    Time frame: 30 days

  2. Number of Participants With a Postoperative Readmission

    readmission within 30 days for any gastrointestinal complaints or infectious complications

    Time frame: 30 days

07

Results

Posted Jan 12, 2024

Participant flow

Participant flow — Overall Study
Milestone2-drug Therapy1-drug Therapy
Started8082
Completed8082
Not completed00

Outcome measures

PrimaryNumber of Participants With a Postoperative Intra-abdominal Abscess

Intra-abdominal abscess documented by ultrasound or computerized tomography

Time frame:
30 days
Reported as:
Count of participants · Participants
Number of Participants With a Postoperative Intra-abdominal Abscess
Participants2-drug Therapy1-drug Therapy
Number of Participants With a Postoperative Intra-abdominal Abscess195
SecondaryNumber of Participants With Postoperative Surgical Site Infection

surgical site infections including superficial port site infection

Time frame:
30 days
Reported as:
Count of participants · Participants
Number of Participants With Postoperative Surgical Site Infection
Participants2-drug Therapy1-drug Therapy
Number of Participants With Postoperative Surgical Site Infection44
SecondaryNumber of Participants With a Postoperative Readmission

readmission within 30 days for any gastrointestinal complaints or infectious complications

Time frame:
30 days
Reported as:
Count of participants · Participants
Number of Participants With a Postoperative Readmission
Participants2-drug Therapy1-drug Therapy
Number of Participants With a Postoperative Readmission114

Adverse events

Collected over Assessed up to 30 days postoperatively.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
2-drug Therapy0/80 (0%)0/80 (0%)1/80 (1.3%)
1-drug Therapy0/82 (0%)0/82 (0%)0/82 (0%)
Most frequent other events
Most frequent other events
Event2-drug Therapy1-drug Therapy
Perioperative Redness/EdemaSkin and subcutaneous tissue disorders1/800/82

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)2-drug Therapy1-drug TherapyTotal
<=18 years8082162
Between 18 and 65 years000
>=65 years000
Sex: Female, Male
Sex: Female, Male(Participants)2-drug Therapy1-drug TherapyTotal
Female303666
Male504696
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)2-drug Therapy1-drug TherapyTotal
Hispanic or Latino000
Not Hispanic or Latino000
Unknown or Not Reported8082162
Race (NIH/OMB)
Race (NIH/OMB)(Participants)2-drug Therapy1-drug TherapyTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American000
White000
More than one race000
Unknown or Not Reported8082162
08

Study locations

2 sites
  • Phoenix Children's Hospital
    Phoenix, Arizona 85016, United States
  • Children's Mercy Hospital
    Kansas City, Missouri 64108, United States
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References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 12, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03289351
Lead sponsor
Phoenix Children's Hospital
Responsible party
Sponsor
First posted
Sep 20, 2017
Start date
May 22, 2017
Primary completion
Nov 17, 2021
Completion
Nov 7, 2023
Results posted
Jan 12, 2024
Last update
Jan 12, 2024

Study contacts

Justin Lee, MD
principal investigator · Phoenix Childrens Hospital

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2023. You cannot join it, but the record below documents what was studied.

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