Trial Outcomes & Findings for Topical Vancomycin for Neurosurgery Wound Prophylaxis (NCT NCT02284126)

NCT ID: NCT02284126

Last Updated: 2025-10-29

Results Overview

Classified as superficial incisional, deep incisional, or organ/space (intradural) infection

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

1103 participants

Primary outcome timeframe

30 days & 90 days (+/- 7 days) postoperatively

Results posted on

2025-10-29

Participant Flow

Participant milestones

Participant milestones
Measure
Topical Vancomycin
Treatment group, receive 2 g topical vancomycin hydrochloride (1 g applied as powder, 1 g mixed with sterile solution and applied as paste) at the time of closure, in addition to the standard of care for wound prophylaxis Vancomycin: Topically applied powder and paste to surgical site at time of closure.
Standard of Care
Control group, receive standard of care only
Overall Study
STARTED
552
551
Overall Study
COMPLETED
484
489
Overall Study
NOT COMPLETED
68
62

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Topical Vancomycin for Neurosurgery Wound Prophylaxis

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Topical Vancomycin
n=484 Participants
Treatment group, receive 2 g topical vancomycin hydrochloride (1 g applied as powder, 1 g mixed with sterile solution and applied as paste) at the time of closure, in addition to the standard of care for wound prophylaxis Vancomycin: Topically applied powder and paste to surgical site at time of closure.
Standard of Care
n=489 Participants
Control group, receive standard of care only
Total
n=973 Participants
Total of all reporting groups
Age, Continuous
54.1 years
STANDARD_DEVIATION 16.1 • n=5 Participants
53.3 years
STANDARD_DEVIATION 17.0 • n=7 Participants
53.7 years
STANDARD_DEVIATION 16.6 • n=5 Participants
Sex: Female, Male
Female
276 Participants
n=5 Participants
280 Participants
n=7 Participants
556 Participants
n=5 Participants
Sex: Female, Male
Male
208 Participants
n=5 Participants
209 Participants
n=7 Participants
417 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
50 Participants
n=5 Participants
43 Participants
n=7 Participants
93 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
403 Participants
n=5 Participants
403 Participants
n=7 Participants
806 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
31 Participants
n=5 Participants
43 Participants
n=7 Participants
74 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
Race (NIH/OMB)
Asian
19 Participants
n=5 Participants
24 Participants
n=7 Participants
43 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
3 Participants
n=5 Participants
1 Participants
n=7 Participants
4 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
39 Participants
n=5 Participants
33 Participants
n=7 Participants
72 Participants
n=5 Participants
Race (NIH/OMB)
White
337 Participants
n=5 Participants
339 Participants
n=7 Participants
676 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
18 Participants
n=5 Participants
18 Participants
n=7 Participants
36 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
67 Participants
n=5 Participants
73 Participants
n=7 Participants
140 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 30 days & 90 days (+/- 7 days) postoperatively

Classified as superficial incisional, deep incisional, or organ/space (intradural) infection

Outcome measures

Outcome measures
Measure
Topical Vancomycin
n=484 Participants
Treatment group, receive 2 g topical vancomycin hydrochloride (1 g applied as powder, 1 g mixed with sterile solution and applied as paste) at the time of closure, in addition to the standard of care for wound prophylaxis Vancomycin: Topically applied powder and paste to surgical site at time of closure.
Standard of Care
n=489 Participants
Control group, receive standard of care only
Any Surgical-site Infection as Evidenced by Surgeon or Attending Physician Diagnosis, or Signs and Symptoms of Infection Assessed by Phone Call Interview or at In-office Follow-up Consultation
Subject visited doctor and received antibiotics
18 participants
19 participants
Any Surgical-site Infection as Evidenced by Surgeon or Attending Physician Diagnosis, or Signs and Symptoms of Infection Assessed by Phone Call Interview or at In-office Follow-up Consultation
Subject reports any possible symptom of surgical site infection
344 participants
355 participants
Any Surgical-site Infection as Evidenced by Surgeon or Attending Physician Diagnosis, or Signs and Symptoms of Infection Assessed by Phone Call Interview or at In-office Follow-up Consultation
Positive skin culture or hospital readmission for surgical site infection
5 participants
4 participants

PRIMARY outcome

Timeframe: 30 days & 90 days (+/- 7 days) postoperatively

Population: Out of 1103 enrolled subjects, only 973 subjects completed the study and their data have been analyzed and presented here.

As evidenced by surgeon or attending physician diagnosis, or signs and symptoms of infection assessed by phone call interview or at in-office follow-up consultation. Classified as superficial incisional, deep incisional, or organ/space (intradural) infection.

Outcome measures

Outcome measures
Measure
Topical Vancomycin
n=484 Participants
Treatment group, receive 2 g topical vancomycin hydrochloride (1 g applied as powder, 1 g mixed with sterile solution and applied as paste) at the time of closure, in addition to the standard of care for wound prophylaxis Vancomycin: Topically applied powder and paste to surgical site at time of closure.
Standard of Care
n=489 Participants
Control group, receive standard of care only
Number of Subjects That Reported Any Surgical-site Infections
344 participants
355 participants

SECONDARY outcome

Timeframe: 6-20 hours post-operatively

Population: 440 participants who were administered vancomycin provided serum samples for analysis. The remaining participants were discharged on the same day as their operation and thus were not available to provide serum samples. Serum samples were not collected from participants who received standard of care.

Vancomycin levels in serum will be tested after surgery, any additional fluid collections, but if and only if clinically indicated. A serum vancomycin level of \>3.0 mg/dl is considered positive.

Outcome measures

Outcome measures
Measure
Topical Vancomycin
n=440 Participants
Treatment group, receive 2 g topical vancomycin hydrochloride (1 g applied as powder, 1 g mixed with sterile solution and applied as paste) at the time of closure, in addition to the standard of care for wound prophylaxis Vancomycin: Topically applied powder and paste to surgical site at time of closure.
Standard of Care
Control group, receive standard of care only
Number of Participants With Positive Serum Vancomycin Levels
21 Participants

SECONDARY outcome

Timeframe: 90 days postoperatively

Population: Swabs were collected only from participants who received Vancomycin.

Microbial swabs will be obtained by the clinical coordinator preoperatively, post-operatively, at 10-14 days and at 90 days. Staph aureus isolates from mannitol growth will be tested for vancomycin resistance.

Outcome measures

Outcome measures
Measure
Topical Vancomycin
n=484 Participants
Treatment group, receive 2 g topical vancomycin hydrochloride (1 g applied as powder, 1 g mixed with sterile solution and applied as paste) at the time of closure, in addition to the standard of care for wound prophylaxis Vancomycin: Topically applied powder and paste to surgical site at time of closure.
Standard of Care
Control group, receive standard of care only
Number of Participants Who Developed a Previously Undetected Vancomycin Resistance
0 Participants

Adverse Events

Topical Vancomycin

Serious events: 49 serious events
Other events: 121 other events
Deaths: 5 deaths

Standard of Care

Serious events: 65 serious events
Other events: 119 other events
Deaths: 6 deaths

Serious adverse events

Serious adverse events
Measure
Topical Vancomycin
n=552 participants at risk
Treatment group, receive 2 g topical vancomycin hydrochloride (1 g applied as powder, 1 g mixed with sterile solution and applied as paste) at the time of closure, in addition to the standard of care for wound prophylaxis Vancomycin: Topically applied powder and paste to surgical site at time of closure.
Standard of Care
n=551 participants at risk
Control group, receive standard of care only
Ear and labyrinth disorders
Hearing loss
0.72%
4/552 • Number of events 4 • 90 days
1.3%
7/551 • Number of events 7 • 90 days
General disorders
Death
0.91%
5/552 • Number of events 5 • 90 days
1.1%
6/551 • Number of events 6 • 90 days
Immune system disorders
Allergy Symptoms
0.00%
0/552 • 90 days
0.18%
1/551 • Number of events 1 • 90 days
Gastrointestinal disorders
Gastrointestinal Changes
0.18%
1/552 • Number of events 1 • 90 days
0.00%
0/551 • 90 days
Infections and infestations
Surgical Site Infection
0.72%
4/552 • Number of events 4 • 90 days
0.73%
4/551 • Number of events 4 • 90 days
General disorders
Unplanned Medical Visit
3.8%
21/552 • Number of events 22 • 90 days
6.7%
37/551 • Number of events 37 • 90 days
Infections and infestations
Urinary Tract Infeciton
0.18%
1/552 • Number of events 1 • 90 days
0.54%
3/551 • Number of events 3 • 90 days
Respiratory, thoracic and mediastinal disorders
Aspiration Pneumonia
0.00%
0/552 • 90 days
0.18%
1/551 • Number of events 1 • 90 days
Vascular disorders
Deep Vein Thrombosis
0.54%
3/552 • Number of events 3 • 90 days
0.18%
1/551 • Number of events 1 • 90 days
Nervous system disorders
Vision Impairment
0.18%
1/552 • Number of events 1 • 90 days
0.36%
2/551 • Number of events 2 • 90 days
Renal and urinary disorders
Hematuria
0.00%
0/552 • 90 days
0.18%
1/551 • Number of events 1 • 90 days
Endocrine disorders
Pancreatic Necrosis
0.00%
0/552 • 90 days
0.18%
1/551 • Number of events 1 • 90 days
Vascular disorders
Hematoma
0.18%
1/552 • Number of events 1 • 90 days
0.18%
1/551 • Number of events 1 • 90 days
General disorders
Bleeding at drain site
0.00%
0/552 • 90 days
0.18%
1/551 • Number of events 1 • 90 days
Cardiac disorders
Left Ventricular Thrombus
0.00%
0/552 • 90 days
0.18%
1/551 • Number of events 1 • 90 days
Nervous system disorders
Facial Sensory Loss
0.18%
1/552 • Number of events 1 • 90 days
0.18%
1/551 • Number of events 1 • 90 days
Respiratory, thoracic and mediastinal disorders
Hypoxia
0.00%
0/552 • 90 days
0.18%
1/551 • Number of events 1 • 90 days
Nervous system disorders
Meningitis
0.18%
1/552 • Number of events 1 • 90 days
0.18%
1/551 • Number of events 1 • 90 days
Nervous system disorders
Dysarthria/Dysphagia
0.00%
0/552 • 90 days
0.54%
3/551 • Number of events 3 • 90 days
Nervous system disorders
Hemiparesis
0.18%
1/552 • Number of events 1 • 90 days
0.54%
3/551 • Number of events 3 • 90 days
Nervous system disorders
Encephalopathy
0.00%
0/552 • 90 days
0.18%
1/551 • Number of events 1 • 90 days
Nervous system disorders
Cognitive Impairment
0.36%
2/552 • Number of events 2 • 90 days
0.36%
2/551 • Number of events 2 • 90 days
Nervous system disorders
Stroke/Cerebrovasular accident
0.54%
3/552 • Number of events 3 • 90 days
0.36%
2/551 • Number of events 2 • 90 days
General disorders
Gait instability
0.00%
0/552 • 90 days
0.18%
1/551 • Number of events 1 • 90 days
Nervous system disorders
Drop foot
0.00%
0/552 • 90 days
0.18%
1/551 • Number of events 1 • 90 days
Psychiatric disorders
Hallucination
0.18%
1/552 • Number of events 1 • 90 days
0.00%
0/551 • 90 days
Infections and infestations
Sepsis
0.18%
1/552 • Number of events 1 • 90 days
0.00%
0/551 • 90 days
General disorders
Chest Pain
0.18%
1/552 • Number of events 1 • 90 days
0.00%
0/551 • 90 days
Vascular disorders
Pulmonary Embolism
0.18%
1/552 • Number of events 1 • 90 days
0.00%
0/551 • 90 days
Nervous system disorders
Seizure
0.18%
1/552 • Number of events 1 • 90 days
0.00%
0/551 • 90 days
Nervous system disorders
Pneumocephalus
0.18%
1/552 • Number of events 1 • 90 days
0.00%
0/551 • 90 days
Cardiac disorders
Pericarditis
0.18%
1/552 • Number of events 1 • 90 days
0.00%
0/551 • 90 days
General disorders
Pain
0.18%
1/552 • Number of events 1 • 90 days
0.00%
0/551 • 90 days
General disorders
Epidural Abscess
0.18%
1/552 • Number of events 1 • 90 days
0.00%
0/551 • 90 days
Infections and infestations
Discharge
0.18%
1/552 • Number of events 1 • 90 days
0.00%
0/551 • 90 days

Other adverse events

Other adverse events
Measure
Topical Vancomycin
n=552 participants at risk
Treatment group, receive 2 g topical vancomycin hydrochloride (1 g applied as powder, 1 g mixed with sterile solution and applied as paste) at the time of closure, in addition to the standard of care for wound prophylaxis Vancomycin: Topically applied powder and paste to surgical site at time of closure.
Standard of Care
n=551 participants at risk
Control group, receive standard of care only
Immune system disorders
Allergy Symptoms
5.8%
32/552 • Number of events 32 • 90 days
6.0%
33/551 • Number of events 33 • 90 days
Metabolism and nutrition disorders
Gastrointestinal changes
5.4%
30/552 • Number of events 33 • 90 days
6.2%
34/551 • Number of events 36 • 90 days
Ear and labyrinth disorders
Hearing Change
4.3%
24/552 • Number of events 26 • 90 days
4.7%
26/551 • Number of events 27 • 90 days
General disorders
Unplanned Medical Visit
6.3%
35/552 • Number of events 38 • 90 days
4.7%
26/551 • Number of events 30 • 90 days

Additional Information

Dr. E. Sander Connolly Jr.

Columbia University Irving Medical Center

Phone: 2123054118

Results disclosure agreements

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