Complex and Simple Appendicitis: REstrictive or Liberal Post-operative Antibiotic eXposure (CASA … (NCT05838248) | Clinical Trial Compass
TerminatedNot Applicable
Complex and Simple Appendicitis: REstrictive or Liberal Post-operative Antibiotic eXposure (CASA RELAX)
Stopped: inadequately powered to achieve statistical significance
United States23 participantsStarted 2023-01-24
Plain-language summary
This prospective trial will randomize patients who have had an appendectomy to two different durations of antibiotic therapy depending on the status of the appendicitis. For simple appendicitis, patients will be randomized to peri-operative antibiotics or 24 hours duration. For complex appendicitis, patients will be randomized to 24 hours or 4 days duration. Data will be collected prospectively and test the hypothesis that shorter durations of antibiotics will be non-inferior to the longer durations.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Age ≥ 18 years
* Planned appendectomy (laparoscopic or open)
* Willing and able to provide informed consent
* Working telephone number or reliable method to contact patient after hospital discharge
Exclusion Criteria:
* 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
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Survival
Timeframe: 30 days
2
Infectious/antibiotic complication requiring antibiotic treatment only only or no specific treatment
Timeframe: 30 days
3
Infectious/antibiotic complication requiring Emergency Department visit