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Less antibiotics after appendix surgery may cut side effects
NCT ID NCT05002829
First seen Jun 27, 2026 · Last updated Jul 01, 2026 · Updated 2 times
Summary
This study looked at whether giving fewer antibiotics after appendicitis surgery could lower the risk of antibiotic side effects without compromising patient safety. Over 650 adults who had surgery for simple or complicated appendicitis took part. The goal was to find the right balance between preventing infection and avoiding unnecessary medication.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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657 people
The number who actually took part.
- Started
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Nov 2021
- Finished
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Jul 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age ≥ 18 years * Planned appendectomy (laparoscopic or open) for simple or complicated (perforated or gangrenous) appendicitis * 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 * Uncontrolled hyperglycemia or Type 1 Diabetes * Surgeon preference * Patient preference * Research team unavailable
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Denver Health and Hospital Authority
Denver, Colorado, 80204-4507, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Scoring system may spare appendicitis patients unnecessary scans and surgery
- Smartphone Follow-Up could replace hospital stays after common surgeries
- New Wound-Cleaning method may let surgeons close incisions right away after severe appendicitis
- Could less be more? shorter antibiotic course after appendix surgery put to the test
- Appendicitis dilemma: survey reveals patient regret over treatment choice
- Scientists create detailed map of appendix cells