Complex And Simple Appendicitis: REstrictive or Liberal Post-operative Antibiotic eXposure - UCSF
CASA RELAX
1 other identifier
interventional
145
1 country
1
Brief Summary
The purpose of this study is to demonstrate the safety, efficacy, and feasibility of short-course post-operative antibiotic treatment for simple and complicated appendicitis
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_4
Started Jun 2023
Typical duration for phase_4
1 active site
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
Study Start
First participant enrolled
June 6, 2023
CompletedFirst Submitted
Initial submission to the registry
June 30, 2023
CompletedFirst Posted
Study publicly available on registry
July 28, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 30, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 30, 2026
May 8, 2025
May 1, 2025
3.1 years
June 30, 2023
May 5, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
Incidence of Infectious/Antibiotic Complications
Infectious/antibiotic complication requiring antibiotic treatment only, Emergency Department visit, hospital readmission, percutaneous drainage, and operative intervention as assessed by treating physician.
Up to 30 days after appendicitis surgery
Number of participant deaths
Up to 30 days after appendicitis surgery
Up to 30 days after appendicitis surgery
Study Arms (2)
Restricted Post-Operative Antibiotics Group
EXPERIMENTALParticipants undergoing standard of care (SOC) with simple appendicitis will not receive post-operative antibiotics. Participants undergoing standard of care with complicated (gangrenous or perforated) appendicitis will receive up to 24 hours of SOC post-operative antibiotics.
Liberal Post-Operative Antibiotics Group
ACTIVE COMPARATORParticipants undergoing standard of care with simple appendicitis will receive 24 hours of post-operative SOC antibiotics Participants undergoing standard of care with complicated (gangrenous or perforated) appendicitis will receive 4 days of post-operative SOC antibiotics.
Interventions
Standard of Care Antibiotic use will be restricted to none or up to 24 hours of post-operative antibiotics.
Eligibility Criteria
You may qualify if:
- Age ≥ 18 years
- Age ≥ 18 years
- Planned appendectomy (laparoscopic or open)
- Working telephone number or reliable method to contact patient after hospital discharge
You may not qualify if:
- Unable to consent
- Pregnant Women
- Prisoners
- Immunocompromised as determined by clinical team, or patients actively receiving steroids, chemotherapy, or immunosuppressing medications (for example tacrolimus), or patients with active hematologic malignancy affecting the immune system, leukopenia, or end-stage AIDS
- Heart failure
- Allergy to bupivacaine
- Unlikely to comply with treatment or follow-up
- Inpatient consultation for appendicitis
- Clinically suspected of sepsis based on Sepsis-3 definition
- Current use of antibiotics for other indications
- Type 1 Diabetes or uncontrolled hyperglycemia
- Surgeon preference
- Patient preference
- Research team unavailable
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Zuckerberg San Francisco General Hospital
San Francisco, California, 94110, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Lucy Kornblith, MD
University of California, San Francisco
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 30, 2023
First Posted
July 28, 2023
Study Start
June 6, 2023
Primary Completion (Estimated)
June 30, 2026
Study Completion (Estimated)
June 30, 2026
Last Updated
May 8, 2025
Record last verified: 2025-05
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL
- Time Frame
- Beginning 9 months and ending 36 months following article publication
- Access Criteria
- Investigators whose proposed use of the data has been approved by an independent review committee identified for this purpose
Patient data will be shared with Denver health and combined with data from other independent sites for final analysis