Trial Outcomes & Findings for Surgical Site Infection With 0.05% Chlorhexidine (CHG) Compared to Triple Antibiotic Irrigation (NCT NCT02395614)

NCT ID: NCT02395614

Last Updated: 2022-01-26

Results Overview

At all postoperative visits with the reconstructive surgeon, patients were thoroughly examined for presence of SSI (cellulitis, purulent drainage). SSI was defined as any instance where antibiotics were restarted or where erythema, cellulitis, warmth, purulent drainage, or fever occurred. SSI was further classified in 3 categories: minor when requiring oral antibiotics, major when requiring inpatient intravenous antibiotics or operative washout, and finally, explantation.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

88 participants

Primary outcome timeframe

6 months

Results posted on

2022-01-26

Participant Flow

Participant milestones

Participant milestones
Measure
Participants Undergoing Bilateral Mastectomy
This group includes participants undergoing bilateral mastectomy with immediate breast reconstruction and tissue expander. Each participant will receive an irrigation of chlorhexidine solution 0.05% (IrriSept, 0.05% CHG in sterile water) on one breast and an irrigation of triple antibiotic solution (composed of cefazolin, gentamicin, and bacitracin) on the other breast.
Overall Study
STARTED
88
Overall Study
Chlorhexidine Irrigation
88
Overall Study
Triple Antibiotic Irrigation
88
Overall Study
COMPLETED
88
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Surgical Site Infection With 0.05% Chlorhexidine (CHG) Compared to Triple Antibiotic Irrigation

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
All Participants
n=88 Participants
88 participants were included. In each participant, 1 mastectomy pocket was randomized to TAS and the other to CHG. CHG consisted of commercially prepared 0.05% CHG solution (IrriSept, 0.05% CHG in sterile water, IrrimaxCorporation, Lawrenceville, GA). TAS contained 1 g of cefazolin, 50,000 U of bacitracin, and 80 mg of gentamicin in 500 mL of normal saline.
Age, Categorical
<=18 years
0 Participants
n=99 Participants
Age, Categorical
Between 18 and 65 years
88 Participants
n=99 Participants
Age, Categorical
>=65 years
0 Participants
n=99 Participants
Sex/Gender, Customized
Females
88 Participants
n=99 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
Race (NIH/OMB)
Asian
0 Participants
n=99 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
Race (NIH/OMB)
Black or African American
6 Participants
n=99 Participants
Race (NIH/OMB)
White
81 Participants
n=99 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=99 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
Region of Enrollment
United States
88 Participants
n=99 Participants
BMI
28.2 kg/m^2
n=99 Participants
Tobacco use
4 Participants
n=99 Participants
Comorbidities
Diabetes
5 Participants
n=99 Participants
Comorbidities
Hypertension
15 Participants
n=99 Participants
Comorbidities
DVT
2 Participants
n=99 Participants
Comorbidities
Bleeding disorders
2 Participants
n=99 Participants
Comorbidities
No comorbidities
64 Participants
n=99 Participants
Indication for mastectomy
Unilateral cancer
71 Participants
n=99 Participants
Indication for mastectomy
Bilateral cancer
5 Participants
n=99 Participants
Indication for mastectomy
Bilateral risk reducing
12 Participants
n=99 Participants
Cancer treatment
Neoadjuvant therapy
2 Participants
n=99 Participants
Cancer treatment
Adjuvant radiation
10 Participants
n=99 Participants
Cancer treatment
Chemotherapy
35 Participants
n=99 Participants
Cancer treatment
None
41 Participants
n=99 Participants
Alcohol use
50 Participants
n=99 Participants

PRIMARY outcome

Timeframe: 6 months

At all postoperative visits with the reconstructive surgeon, patients were thoroughly examined for presence of SSI (cellulitis, purulent drainage). SSI was defined as any instance where antibiotics were restarted or where erythema, cellulitis, warmth, purulent drainage, or fever occurred. SSI was further classified in 3 categories: minor when requiring oral antibiotics, major when requiring inpatient intravenous antibiotics or operative washout, and finally, explantation.

Outcome measures

Outcome measures
Measure
Participants Undergoing Bilateral Mastectomy
n=88 Participants
This group includes participants undergoing bilateral mastectomy with immediate breast reconstruction and tissue expander. Each participant will receive an irrigation of chlorhexidine solution 0.05% (IrriSept, 0.05% CHG in sterile water) on one breast and an irrigation of triple antibiotic solution (composed of cefazolin, gentamicin, and bacitracin) on the other breast.
Number of Participants With Surgical Site Infection
Chlorhexidine irrigation
7 participants
Number of Participants With Surgical Site Infection
Triple antibiotic irrigation
4 participants

SECONDARY outcome

Timeframe: 6 months

At all postoperative visits with the reconstructive surgeon, patients were thoroughly examined for presence of necrosis, seroma, or hematoma.

Outcome measures

Outcome measures
Measure
Participants Undergoing Bilateral Mastectomy
n=88 Participants
This group includes participants undergoing bilateral mastectomy with immediate breast reconstruction and tissue expander. Each participant will receive an irrigation of chlorhexidine solution 0.05% (IrriSept, 0.05% CHG in sterile water) on one breast and an irrigation of triple antibiotic solution (composed of cefazolin, gentamicin, and bacitracin) on the other breast.
Number of Participants With Flap Necrosis, Hematoma, and Seroma
Chlorhexidine irrigation
21 participants
Number of Participants With Flap Necrosis, Hematoma, and Seroma
Triple antibiotic irrigation
23 participants

Adverse Events

Chlorhexidine Irrigation

Serious events: 0 serious events
Other events: 33 other events
Deaths: 2 deaths

Triple Antibiotic Irrigation

Serious events: 0 serious events
Other events: 29 other events
Deaths: 2 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Chlorhexidine Irrigation
n=88 participants at risk
Each patient received triple antibiotic solution on one breast and the CHG on the other breast. CHG consisted of commercially prepared 0.05% CHG solution (IrriSept, 0.05% CHG in sterile water, Irrimax Corporation, Lawrenceville, GA.
Triple Antibiotic Irrigation
n=88 participants at risk
Each patient received triple antibiotic solution on one breast and the CHG on the other breast. Triple antibiotic solution contains 1 g of cefazolin, 50,000 U of bacitracin, and 80 mg of gentamicin in 500 mL of normal saline (NS). If the patient is allergic to either component - the allergen will not be used in the solution - for irrigation.
Infections and infestations
Surgical site infections
8.0%
7/88 • 20 months
4.5%
4/88 • 20 months
Blood and lymphatic system disorders
Necrosis/Hematoma/Seroma
23.9%
21/88 • 20 months
26.1%
23/88 • 20 months
Infections and infestations
Explantation secondary to infection
5.7%
5/88 • 20 months
2.3%
2/88 • 20 months

Additional Information

Dr. Kent K. Higdon

Vanderbilt university medical center

Phone: 615-936-0160

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place