- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02809729
Antibiotic Prophylaxis in Oncological Surgery of Breast
Antibiotic Prophylaxis in Oncological Surgery of Breast: Randomized Clinical Trial
Study Overview
Status
Intervention / Treatment
Detailed Description
KIND OF STUDY:
Primary, clinical, prospective, randomized, two-parallel-group, double-blind, controlled, interventional, analytical. SAMPLE CALCULATION: based on proportions observed in a previous study with and without antibiotic use in breast surgery (VEIGA-Filho, 2010) the number calculated patients per group was 62, with a significance level of 5% and power 80% of the test. SELECTION: will be selected in Mastology outpatient clinics 124 female patients to be undergoing breast surgery for malignancy. The selection of patients will be divided in two groups PLACEBO (N = 62): receive 0.9% saline 100 ml intravenously and CEFAZOLIN GROUP (N = 62): receive 2 g of cefazolin diluted in 0.9% saline by endovenous. In both groups will be passed in a standardized manner, a sterile swab soaked in saline over a standard 5cm by 10cm area determined by a field fenestrated sterile filter paper. Preoperatively will default collection in the region higher interquadrantes breast to be operated immediately above areolopapilar complex, which is not included in the designated area for collection. At end surgery and also in the first postoperative day, the sterile field will be positioned with fenestration on the wound. Tha material will be Standard microbiological methods used to identify microoganismos. 0.2 ml aliquots of each sample are plated on agar media hypertonic mannitol, selective for Staphylococcus sp, Sabouraud agar with chloramphenicol (0.05mg / ml), selective for fungi, agar EMB Teague, selective for enterobacteria, and agar blood, for the presence of hemolytic colonies. After 48 hours, the reading of the number of colony forming units will be held by a microbiologist. Patients are regularly monitored for the occurrence of infection, once a week for the first 30 days by a single surgeon. They will be used and the definitions of surgical site infection classifications adopted by CDC
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Minas Gerais
-
Pouso Alegre, Minas Gerais, Brazil, 37550000
- Universidade do Vale do Sapucai
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- female patients who will undergo breast surgery for cancer evil, between 20 and 75 years, without any restriction as to ethnicity, education or social class;
Exclusion Criteria:
- Patients with BMI greater than 30 kgm 2;
- Patients undergoing neoadjuvant chemotherapy;
- Patients that will undergo immediate breast reconstruction procedures;
- Patients suffering from diabetes mellitus insulin-dependent;
- Patients classified as ASA III or higher
- Patients that postoperative antibiotic therapy have indication by another
clinical complication (cystitis, pneumonia, etc.);
-Patients to withdraw informed consent at any stage of the study;
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Placebo Comparator: placebo
The patients will receive 0.9% saline for intravenous bottle with 100ml looks identical to the antibiotic at the start of anesthetic induction
|
0.9% saline sterile by endovenous, once, at the moment of anesthetic induction
The patient will be submitted to a conservative oncologic breast surgery
Samples for quantitative cultures will be obtained in the operating room before antisepsis and the end of surgery.
A sample is also collected with the same patterning, on the first postoperative day, immediately after the removal of the dressing placed in the operating room.
Will be passed in a standardized manner, a sterile swab soaked in saline over a standard 5cm by 10cm area determined by a field fenestrated sterile filter paper.
|
Active Comparator: cefazolin
The patients will receive 2 g of cefazolin diluted in 0.9% saline by endovenous at the start of anesthetic induction
|
The patient will be submitted to a conservative oncologic breast surgery
Samples for quantitative cultures will be obtained in the operating room before antisepsis and the end of surgery.
A sample is also collected with the same patterning, on the first postoperative day, immediately after the removal of the dressing placed in the operating room.
Will be passed in a standardized manner, a sterile swab soaked in saline over a standard 5cm by 10cm area determined by a field fenestrated sterile filter paper.
2 g of cefazolin diluted in 0.9% saline by endovenous, once, at the moment of anesthetic induction
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
surgical site infection in oncologic breast surgery
Time Frame: up to 30 days
|
To evaluate the influence of antibiotic prophylaxis in surgical site infection rates
|
up to 30 days
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
cutaneous colonization in oncologic breast surgery
Time Frame: intraoperative and the first postoperative day.
|
To evaluate the microbiota that infects the skin in oncological breast surgery
|
intraoperative and the first postoperative day.
|
Collaborators and Investigators
Sponsor
Investigators
- Study Chair: FABIOLA SM CAMPOS, MD, Department of Gynecology and Obstetrics
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- MPRUBENS PRUDENCIO
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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