Appendiceal AbscessNCT00414375
Early Versus Delayed Operation for Perforated Appendicitis
A study testing Operation on Admission and Drainage and Interval Appendectomy in people with Appendiceal Abscess, run by Children's Mercy Hospital Kansas City at 1 site in United States.
Trial summary
The objective of this study is to scientifically evaluate two different operative strategies for perforated appendicitis with abscess. The hypothesis is that the increased difficulty of early operation is balanced by the immense patient investment with delayed operation. Read more about this study
- Who is it for?
- Ages Up to 18 years
- Conditions the study is for
- Appendiceal Abscess
- What is being tested?
- Operation on Admission and Drainage and Interval Appendectomy
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteUnited States
- Study dates
- Dec 2006to Mar 2009
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Up to 18 years
- All sexes
- No healthy volunteers
- Child, Adult
Who may be able to join
- Patients with perforated appendicitis and an abdominal abscess diagnosed on CT scan.
- Children of any age will be included.
Who cannot join
- Patients with immune deficiency
- Another condition affecting surgical decision making or recovery (e.g. hemophilia, severe cardiac or respiratory co-morbidities).
- Acute sepsis or severe pain from perforation not allowing for delayed management.
Trial locations and contacts
1 site in 1 country.
United States1 site
Children's Mercy Hospital
Kansas City, Missouri, 64108
About this study
Official title: Early Versus Delayed Operation for Perforated Appendicitis With Abscess, a Pilot Study
The objective of this study is to scientifically evaluate two different operative strategies for perforated appendicitis with abscess.
The hypothesis is that the increased difficulty of early operation is balanced by the immense patient investment with delayed operation.
Read the detailed description
This will be a single institution, prospective, randomized clinical trial involving patients who present to the hospital with perforated appendicitis with abscess. This will be a pilot study.
Power calculations are not used for a pilot study. One group will undergo a primary laparoscopic appendectomy. The other group will receive intravenous antibiotics with drainage if possible and a laparoscopic appendectomy 10 weeks after initiation of treatment at presentation. All 7 general pediatric surgeons will be involved with the operations, who are all comfortable with these management arms. The surgeon will not induce a significant confounding variable into this study. The laparoscopic appendectomy is approached in the same manner by all members of our group. Those named on the form are qualified by the IRB to obtain consent and/or will be accountable for overseeing the study.
Both groups will have the same antibiotic regiment. All data will be analyzed on intention-to-treat basis.
- Conditions
- Appendiceal Abscess
- Being tested
- Operation on Admission, Drainage and Interval Appendectomy
- Keywords
- Perforated Appendicitis, Abscess, Appendectomy
- Medical subject headings
- Appendicitis, Abscess
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Operation on AdmissionProcedure or surgery
Laparoscopic appendectomy on admission
Drainage and Interval AppendectomyProcedure or surgery
drainage with interval appendectomy
| Study group | Role | What they receive |
|---|---|---|
| 1 | Active comparator | Drainage with interval appendectomy Receives: Procedure: Drainage and Interval Appendectomy |
| 2 | Experimental | appendectomy on presentation Receives: Procedure: Operation on Admission |
What is being measured
The primary outcome is the main question the study is designed to answer.
Pilot
Measured: 3 months
Secondary outcomes (1)
PIP and PedsQL4 scores, time to full feeds, days of hospitalization, recurrent abscess, number of recurrences, number of CT scans, operating time
Measured: 3 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Dec 2006 (estimated)
- Study startDec 2006
- Primary completionFeb 2009
- Study completionMar 2009
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Appendiceal AbscessStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- Children's Mercy Hospital Kansas City
- Sponsor type
- University, hospital or other
- Investigators
- Shawn D St. Peter, MD, Principal investigator, Children's Mercy Hospital Kansas City
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00414375
- Sponsor's protocol ID
- 06 11 164
- Status last verified
- Mar 2009
- First submitted
- 19 Dec 2006
- Last updated
- 3 Mar 2009
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 3 Mar 2009. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Early Versus Delayed Operation for Perforated Appendicitis With Abscess, a Pilot Study
- ClinicalTrials.gov ID
- NCT00414375
- Acronym / sponsor ID
- 06 11 164
- Conditions
- Appendiceal Abscess
- Keywords
- Perforated Appendicitis, Abscess, Appendectomy
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- Children's Mercy Hospital Kansas CityUniversity, hospital or other
- Study start
- Dec 2006
- Primary completion
- Feb 2009 (actual)
- Study completion
- Mar 2009 (actual)
- First posted
- 21 Dec 2006 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The objective of this study is to scientifically evaluate two different operative strategies for perforated appendicitis with abscess.
The hypothesis is that the increased difficulty of early operation is balanced by the immense patient investment with delayed operation.
Detailed description
This will be a single institution, prospective, randomized clinical trial involving patients who present to the hospital with perforated appendicitis with abscess. This will be a pilot study.
Power calculations are not used for a pilot study. One group will undergo a primary laparoscopic appendectomy. The other group will receive intravenous antibiotics with drainage if possible and a laparoscopic appendectomy 10 weeks after initiation of treatment at presentation. All 7 general pediatric surgeons will be involved with the operations, who are all comfortable with these management arms. The surgeon will not induce a significant confounding variable into this study. The laparoscopic appendectomy is approached in the same manner by all members of our group. Those named on the form are qualified by the IRB to obtain consent and/or will be accountable for overseeing the study.
Both groups will have the same antibiotic regiment. All data will be analyzed on intention-to-treat basis.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| 1 | Active comparator | Procedure: Drainage and Interval AppendectomyDrainage with interval appendectomy |
| 2 | Experimental | Procedure: Operation on Admissionappendectomy on presentation |
Who may qualify
- Ages
- Up to 18 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
Key inclusion criteria (2 listed)
- Patients with perforated appendicitis and an abdominal abscess diagnosed on CT scan.
- Children of any age will be included.
Key exclusion criteria (3 listed)
- Patients with immune deficiency
- Another condition affecting surgical decision making or recovery (e.g. hemophilia, severe cardiac or respiratory co-morbidities).
- Acute sepsis or severe pain from perforation not allowing for delayed management.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Operation on AdmissionLaparoscopic appendectomy on admission | Procedure or surgery | 2 |
| Drainage and Interval Appendectomydrainage with interval appendectomy | Procedure or surgery | 1 |
Primary outcome
Pilot
Time frame: 3 months
1 secondary outcome
PIP and PedsQL4 scores, time to full feeds, days of hospitalization, recurrent abscess, number of recurrences, number of CT scans, operating time
Time frame: 3 months
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Mar 2009.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Shawn D St. Peter, MD principal investigator
Children's Mercy Hospital Kansas City
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Operation on Admission and Drainage and Interval Appendectomy in people with Appendiceal Abscess, run by Children's Mercy Hospital Kansas City at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 3 Mar 2009. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Pilot (time frame: 3 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Mar 2009; AzTrials last refreshed its copy on 27 Oct 2026.