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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Acute Appendicitis Clear all
Recruiting Phase 4 Interventional

APPI-Cost Trial for Perforated Appendicitis

NCT06705842
View directory record Official record
Conditions
Perforated Appendicitis
Interventions
PVI, Usual Care
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
346 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Jul 22, 2026, 2:29 PM EDT
Withdrawn Phase 1Phase 2 Interventional

Narcotic vs. Non-narcotic Pain Regimens After Pediatric Appendectomy

NCT03528343
View directory record Official record
Conditions
Appendicitis, Pain, Postoperative
Interventions
Non-narcotic pain control
Drug
Lead sponsor
University of Utah
Other
Eligibility
Up to 18 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Feb 6, 2020 · Synced Jul 22, 2026, 2:29 PM EDT
Completed Not applicable Interventional

Irrigation Versus No Irrigation for Perforated Appendicitis

NCT00854815
View directory record Official record
Conditions
Perforated Appendicitis
Interventions
Irrigation, No Irrigation
Procedure
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
1 Month to 17 Years
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 31, 2012 · Synced Jul 22, 2026, 2:29 PM EDT
Completed No phase listed Observational

Prospective Randomized Evaluation of Antibiotic Regimen Following Appendectomy for Perforated Appendicitis

NCT00195923
View directory record Official record
Conditions
Perforated Appendicitis
Interventions
Ampicillin, gentamicin, clindamycin, flagyl, ceftazidime
Drug
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
1 Month to 18 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 5, 2007 · Synced Jul 22, 2026, 2:29 PM EDT
Completed Not applicable Interventional

Appendectomy Versus Non-Operative Treatment For Acute Non-Perforated Appendicitis in Children

NCT02687464
View directory record Official record
Conditions
Appendicitis
Interventions
Non-operative treatment, Appendectomy
Other · Procedure
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
5 Years to 16 Years
Enrollment
978 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 25, 2023 · Synced Jul 22, 2026, 2:29 PM EDT
Completed No phase listed Observational

Fetal Outcomes Among Pregnant Emergency General Surgery Patients

NCT05085353
View directory record Official record
Conditions
Pregnancy Complications, Acute Appendicitis, Acute Cholecystitis, Biliary Pancreatitis, Bowel Obstruction, Acute Diverticulitis
Interventions
non-obstetric acute general surgical disease
Procedure
Lead sponsor
Methodist Health System
Other
Eligibility
18 Years and older · Female only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Jul 22, 2026, 2:29 PM EDT
Not listed No phase listed Observational

Non-operative Management of Early Appendicitis in Children

NCT01718275
View directory record Official record
Conditions
Appendicitis
Interventions
Not listed
Lead sponsor
Peter Minneci
Other
Eligibility
7 Years to 17 Years
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2023
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 23, 2023 · Synced Jul 22, 2026, 2:29 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Point of Care 3D Ultrasound for Various Applications: A Pilot Study

NCT02831556
View directory record Official record
Conditions
Appendicitis, Evidence of Cholecystectomy, Gallstones, Pregnancy, Ectopic, Aortic Aneurysm, Kidney Stones, Intrauterine Pregnancy, Diverticulitis, Abdominal Injuries, Tumors, Pancreatitis, Digestive System Diseases, Gastrointestinal Diseases, Intraabdominal Infections, Intestinal Diseases, Pregnancy, Vascular Disease, Uterine Fibroids, Ovarian Cysts, Uterine Abnominalies, Bladder Abnominalies, Testicular Abnominalies, Polyps
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
174 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2022
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated May 20, 2024 · Synced Jul 22, 2026, 2:29 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Pediatric Appendicitis Risk Calculator (pARC) in Children With Appendix Ultrasounds

NCT03522233
View directory record Official record
Conditions
Appendicitis
Interventions
Not listed
Lead sponsor
Children's Hospitals and Clinics of Minnesota
Other
Eligibility
5 Years to 18 Years
Enrollment
800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
2
States / cities
Minneapolis, Minnesota • Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated May 10, 2018 · Synced Jul 22, 2026, 2:29 PM EDT
Completed Not applicable Interventional

Single Incision Laparoscopy

NCT00616616
View directory record Official record
Conditions
Appendicitis, Cholelithiasis, Malignant Hypertension
Interventions
single incision laparoscopic surgery
Procedure
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Oct 25, 2016 · Synced Jul 22, 2026, 2:29 PM EDT
Completed Not applicable Interventional Results available

The Comparison of Outcomes of Antibiotic Drugs and Appendectomy (CODA) Trial

NCT02800785
View directory record Official record
Conditions
Appendicitis
Interventions
Cefoxitin, Ertapenem, Moxifloxacin, Tigecycline, Ticarcillin-Clavulanic Acid; Metronidazole plus Cefazolin, Cefuroxime, Ceftriaxone, Cefotaxime, Ciprofloxacin, or Levofloxacin, Appendectomy
Drug · Procedure
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
1,552 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
25
States / cities
Sylmar, California • Torrance, California • Aurora, Colorado + 14 more
Source: ClinicalTrials.gov public record
Updated May 5, 2023 · Synced Jul 22, 2026, 2:29 PM EDT
Terminated Phase 2 Interventional Results available

Transversus Abdominis Plane (TAP) Versus Local Anesthetic for Lap Appendectomies

NCT01575028
View directory record Official record
Conditions
Appendicitis
Interventions
Ropivacaine, Bupivacaine
Drug
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
Not listed
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 23, 2015 · Synced Jul 22, 2026, 2:29 PM EDT
Completed Not applicable Interventional

Single Incision Laparoscopic Surgery (SILS) Versus Laparoscopic Appendectomy

NCT00981136
View directory record Official record
Conditions
Appendicitis
Interventions
Single Incision Laparoscopic Appendectomy, 3 port laparoscopic appendectomy
Procedure
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
1 Month to 18 Years
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 14, 2013 · Synced Jul 22, 2026, 2:29 PM EDT
Withdrawn No phase listed Observational

Identifiable Factors That May Lead to Postoperative Nausea and Vomiting After Simple Laparoscopic Appendectomy

NCT02044640
View directory record Official record
Conditions
Acute Appendicitis
Interventions
Appendectomy
Procedure
Lead sponsor
Brian Kenney
Other
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 7, 2015 · Synced Jul 22, 2026, 2:29 PM EDT
Terminated Not applicable Interventional

Initial Versus Delayed Operation for Treatment of Complicated Appendicitis In Children

NCT00540189
View directory record Official record
Conditions
Perforated Appendicitis
Interventions
Initial appendectomy, Interval appendectomy
Procedure
Lead sponsor
University of Michigan
Other
Eligibility
2 Years to 17 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 18, 2016 · Synced Jul 22, 2026, 2:29 PM EDT
Completed No phase listed Observational

The Performance of the APPY1 Test in the Evaluation of Possible Acute Appendicitis

NCT01652170
View directory record Official record
Conditions
Acute Appendicitis
Interventions
Not listed
Lead sponsor
Venaxis, Inc.
Industry
Eligibility
2 Years to 20 Years
Enrollment
2,201 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
29
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Sacramento, California + 25 more
Source: ClinicalTrials.gov public record
Updated Mar 23, 2014 · Synced Jul 22, 2026, 2:29 PM EDT
Recruiting No phase listed Observational

Retrospective Acute Care Appendectomy Study

NCT06624215
View directory record Official record
Conditions
Acute Appendicitis
Interventions
Appendectomy
Procedure
Lead sponsor
Intuitive Surgical
Industry
Eligibility
22 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
3
States / cities
Columbus, Ohio • Portland, Oregon • New Braunfels, Texas
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Jul 22, 2026, 2:29 PM EDT
Terminated Phase 4 Interventional

Complex And Simple Appendicitis: REstrictive or Liberal Post-operative Antibiotic eXposure - UCSF

NCT05966454
View directory record Official record
Conditions
Appendicitis
Interventions
Multiple standard of care antibiotics for appendicitis, at physicians' discretion
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Jul 22, 2026, 2:29 PM EDT
Terminated Phase 4 Interventional Results available

Sugammadex vs Neostigmine Reversal in Pediatric Appendectomy

NCT05256901
View directory record Official record
Conditions
Appendicitis, Surgery
Interventions
Sugammadex, Neostigmine/Glycopyrrolate
Drug
Lead sponsor
Emory University
Other
Eligibility
2 Years to 17 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 29, 2025 · Synced Jul 22, 2026, 2:29 PM EDT
Completed Not applicable Interventional Results available

Intravenous Versus Intravenous/Oral Antibiotics for Perforated Appendicitis

NCT00462020
View directory record Official record
Conditions
Perforated Appendicitis
Interventions
5 days of IV antibiotics (ceftriaxone and metronidazole), Home with oral antibiotics when eating (ampicillin/clavulanic acid)
Drug
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
Up to 18 Years
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 20, 2021 · Synced Jul 22, 2026, 2:29 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Appendicitis Choice of Treatment Study

NCT04968782
View directory record Official record
Conditions
Acute Appendicitis
Interventions
Patients with acute appendicitis
Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Mar 22, 2022 · Synced Jul 22, 2026, 2:29 PM EDT
Completed Phase 4 Interventional Results available

Study Comparing Tigecycline Versus Ceftriaxone Sodium Plus Metronidazole in Complicated Intra-abdominal Infection

NCT00195351
View directory record Official record
Conditions
Appendicitis, Cholecystitis, Cross Infection, Diverticulitis, Peritonitis
Interventions
tigecycline, ceftriaxone sodium + metronidazole
Drug
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years and older
Enrollment
467 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
46
States / cities
Mobile, Alabama • Laguna Hills, California • Los Angeles, California + 38 more
Source: ClinicalTrials.gov public record
Updated Feb 24, 2013 · Synced Jul 22, 2026, 2:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Water And Saline Head-to-head In The Blinded Evaluation Study Trial

NCT02714023
View directory record Official record
Conditions
Acute Appendicitis, Abscess
Interventions
Normal Saline, Sterile Water
Procedure
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
6 Years and older
Enrollment
241 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 14, 2018 · Synced Jul 22, 2026, 2:29 PM EDT
Recruiting Not applicable Interventional

Enhanced Recovery After Surgery (ERAS) for Complicated Appendicitis

NCT06948071
View directory record Official record
Conditions
Appendicitis Acute, Appendicitis Perforated, Appendicitis With Perforation, Appendicitis Suppurative, Appendicitis Gangrenous
Interventions
Discharge on oral antibiotics
Other
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 28, 2025 · Synced Jul 22, 2026, 2:29 PM EDT