Management of Skin and Soft Tissue Abscesses in Pediatric Patients After Incision and Drainage
![]() |
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT00691600 |
Recruitment Status :
Completed
First Posted : June 5, 2008
Results First Posted : June 23, 2020
Last Update Posted : July 1, 2020
|
- Study Details
- Tabular View
- Study Results
- Disclaimer
- How to Read a Study Record
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Abscess | Drug: oral trimethoprim/sulfamethoxazole Drug: Placebo | Phase 3 |
This study is a randomized controlled trial of antibiotic treatment versus placebo after incision and drainage of skin and soft tissue abscesses less than 5 cm in pediatric patients. Eligible patients whose parents/guardians consented them to enrollment were randomized to receive one of two interventions: oral trimethoprim/sulfamethoxazole (TMP/SMX) or placebo after incision and drainage. Every attempt was made to make the placebo capsules and suspensions appear in all aspects like the true drug (was done by the investigational pharmacy department at our institution). Equal numbers of subjects were randomized at the outset to both study groups. Randomization, also done by our investigational pharmacy department, was done in blocks of 20. Patients were followed up in our emergency center at 24 to 48 hours to have any packing removed and to have their clinical/wound status assessed. They were not charged for this visit, and their valet parking was validated. If an individual patient, or an individual patient's wound, was felt to be not improving adequately, that patient was started on formal antibiotic therapy at the treating attending physician's discretion.
Primary outcome:
1. Abscess resolution by parental report 7-10 days after incision and drainage
Secondary outcomes:
- Admission to the hospital because of worsening infection
- Receipt of antibiotics (placebo arm) or change in antibiotics (antibiotic arm)
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 23 participants |
Allocation: | Randomized |
Intervention Model: | Single Group Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | Phase 3 Study Comparing Bactrim to Placebo in the Management of Abscesses < 5cm in the Pediatric Population. |
Study Start Date : | December 2007 |
Actual Primary Completion Date : | April 2010 |
Actual Study Completion Date : | April 2010 |
Arm | Intervention/treatment |
---|---|
Active Comparator: oral trimethoprim/sulfamethoxazole
subjects with abscesses less than 5cm will be randomized to either study med or placebo
|
Drug: oral trimethoprim/sulfamethoxazole
80 mg caps or 8 mg/ml suspension every 12 hours for 10 days
Other Name: TMP/SMX |
Placebo Comparator: placebo
Placebo after incision and drainage of abscess less than 5 cm.
|
Drug: Placebo
Placebo caps or suspension every 12 hours for 10 days
Other Name: Placebo caps |
- Number of Participants With Abscess Resolution [ Time Frame: 10 days ]Outcomes will be measured by resolution of size, tenderness, and induration with erythema by parental report 7 - 10 days after initial visit to the Emergency Center
- Number of Participants Requiring Admission for Failure of Abscess Resolution [ Time Frame: 10 days ]Percentage of patients requiring admission to Texas Children's or another hospital within 10 days of incision and drainage
- Number of Participants Requiring New or Modified Antibiotics for Failure of Abscess to Resolve [ Time Frame: 10 days ]
For the antibiotic arm, we determined if the child was prescribed a different antibiotic.
For the placebo arm, we determined if the child received a prescription for an antibiotic at a subsequent visit (e.g., in the emergency department, by their pediatrician, etc) within 10 days of incision and drainage

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 90 Days to 18 Years (Child, Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
1.) Abscess < 5 cm (< 5 cm of induration and fluctuance) requiring incision and drainage 2.) Age > 90 days and < 18 years 3.) Abscess on the trunk, scalp, extremities, or axillae
Exclusion Criteria:
- Multiple abscesses
- Abscess located on the hands, face, or perineum
- Abscess as a result of a bite wound
- Immunocompromised patient - i.e., diabetes, sickle cell, chronic steroid therapy (> 10 days), etc.
- Previously failed 48 hours or greater therapy on any antibiotic regimen 6.) Drug allergy to TMP/SMX
7.) Fever > or = 102.2 degrees Fahrenheit in the previous 24 hours 8.) Systemic symptoms on presentation - i.e., nausea , vomiting, persistent tachycardia, hypotension, diaphoresis, etc.
9.) Signs /symptoms of another infection or illness - i.e., influenza, croup, etc.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00691600
United States, Texas | |
Texas Children's Hospital | |
Houston, Texas, United States, 77030 |
Principal Investigator: | Andrea Cruz, MD, MPH | Baylor College of Medicine |
Responsible Party: | Andrea Cruz, Principal Investigator, Baylor College of Medicine |
ClinicalTrials.gov Identifier: | NCT00691600 |
Other Study ID Numbers: |
H-18758 |
First Posted: | June 5, 2008 Key Record Dates |
Results First Posted: | June 23, 2020 |
Last Update Posted: | July 1, 2020 |
Last Verified: | June 2020 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
abscess Abscesses in the pediatric emergency population |
Abscess Suppuration Infections Inflammation Pathologic Processes Trimethoprim Sulfamethoxazole Anti-Infective Agents, Urinary Anti-Infective Agents |
Antimalarials Antiprotozoal Agents Antiparasitic Agents Folic Acid Antagonists Enzyme Inhibitors Molecular Mechanisms of Pharmacological Action Anti-Dyskinesia Agents Cytochrome P-450 CYP2C8 Inhibitors Cytochrome P-450 Enzyme Inhibitors |