ClinicalTrials.gg
TerminatedNCT02461433SAVIORUpdated Feb 26, 2019Results posted

Surgical Application of Vac Dressings In Obese Patients to Reduce Wound Complications

An interventional study of Prevena and Standard Dressing in Wound Infection, Surgical, Obesity and Postoperative Complications, sponsored by Johns Hopkins University. Terminated at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-02-26.

Sponsored by Johns Hopkins University · Not applicable, Interventional, and Treatment

Why this study was terminated
Sponsor pulled funding
Phase
Not applicable
Study type
Interventional
Enrollment
2
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to determine whether application of an incisional wound Prevena trademark (TM) dressing (applies negative pressure to wounds) in the obese (BMI ≥30) surgical patient will reduce surgical site infections (SSI) when compared to the standard of care dressing.

Read the detailed description

In an attempt to decrease wound infection incidence and improve healing time of open surgical wounds, vacuum assisted closure (VAC) was developed. This innovative technique provided contained controlled wound irrigation without bacterial aerosolization. A newer customizable subset of the Prevena incision Management System TM called Prevena Peel and Place TM has been released a few months ago. The new model can be cut to specific wound sizes and has a connector that can be attached to the already widely available VAC machines. The versatility and the comparability to older models of Prevena Peel and Place TM have not been tested to this date.

The investigators believe that a randomized clinical trial evaluating the use of the Prevena Incision Management System TM for homecare and the use of Prevena Peel and Place TM for inpatients in special populations is warranted. Obese patients (BMI≥30) undergoing open surgery will have decreased surgical site infection rates, improved healing time, better quality of life (QOL) and lower readmission rates with use of Prevena in the post-operative management of surgical incisions.

02

Conditions studied

  • Wound Infection, Surgical
  • Obesity
  • Postoperative Complications

Keywords

  • Obesity
  • Obese
  • surgical site infection
  • closed incisions
  • negative pressure therapy
03

In context

Surgical Wound Infection

687 studies on the registry are indexed under Surgical Wound Infection; 142 are open to participants now.

This study's enrollment of 2 is below the median of 200 across 526 interventional studies indexed under Surgical Wound Infection.

Browse Surgical Wound Infection studies →

Lead sponsor

Johns Hopkins University is the lead sponsor of 1,809 studies on the registry; 314 are open to participants now.

Of its 208 completed or terminated interventional studies of FDA-regulated products, 144 (69%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patient has been informed of the nature of the study, and has provided written informed consent, approved by the appropriate Institutional Review Board (IRB) / Medical Ethics Committee (MEC) of the respective clinical site.
  • Patient meets the criteria for and is undergoing open surgery at Johns Hopkins Medical Institutes.
  • Patient with BMI≥ 30 at the time of surgery
  • Patient agrees to return for all required clinical follow up for the study.

Exclusion criteria

Exclusion Criteria:

  • Known allergic reaction to acrylic adhesives or silver.
  • Known history of intolerance to any component of Prevena Incision Management System TM.
  • Very fragile skin around incision site.
  • Bleeding disorder or refuses blood transfusion.
  • Malignancy or other condition limiting life expectancy to \<5 years.
  • Pregnancy
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Care provider)
Enrollment
2 participants (actual)

Study arms

  • Experimental
    Prevena

    After surgery this group will receive the Prevena device (negative pressure wound therapy).

    Device: Prevena

  • Active comparator
    Standard dressing

    After surgery this group will receive standard of care dressings on their surgical wound.

    Device: Standard Dressing

Interventions

  • DevicePrevena

    Prevena Incision Management system

  • DeviceStandard Dressing

    This involves standard of care dressing including but not limited to gauze.

06

What researchers measure

Primary outcomes

  1. Surgical Site Infection According to National Healthcare Safety Network - Center for Disease Control Guidelines

    The incidence of postoperative surgical site infection (according to National Healthcare Safety Network - Center for Disease Control guidelines) in open surgery

    Time frame: Up to 7 days postop

Secondary outcomes

  1. Other Wound Complications (Aggregate)

    Dehiscence, seroma and hematoma. Reported as number of aggregate events.

    Time frame: Up to 14 days postop

  2. Skin Bacterial Count as Assessed by Microbacterial Count

    Skin bacterial count after removal of either Prevena or standard dressing. A micro-bacterial swap will be performed and sent to the microbiology lab for assessing bacterial count

    Time frame: Up to 7 days postop

  3. Physical Function as Assessed by Short Form Survey (SF) 36

    The SF -36 has eight scaled scores; the scores are weighted sums of the questions in each section. Scores range from 0 - 100. Lower scores = more disability, higher scores = less disability

    Time frame: Up to 14 days postop

  4. Readmissions

    Readmission events for the patients.

    Time frame: Up to 30 days postop

  5. Role Limitations Due to Physical Health as Assessed by Short Form Survey (SF) 36

    The SF -36 has eight scaled scores; the scores are weighted sums of the questions in each section. Scores range from 0 - 100. Lower scores = more disability, higher scores = less disability

    Time frame: Up to 14 days postop

  6. Social Functioning as Assessed by Short Form Survey (SF) 36

    The SF -36 has eight scaled scores; the scores are weighted sums of the questions in each section. Scores range from 0 - 100. Lower scores = more disability, higher scores = less disability

    Time frame: Up to 14 days postop

  7. Energy / Fatigue as Assessed by Short Form Survey (SF) 36

    The SF -36 has eight scaled scores; the scores are weighted sums of the questions in each section. Energy and fatigue are aggregated in this section. Scores range from 0 - 100. Lower scores = more disability, higher scores = less disability

    Time frame: Up to 14 days postop

  8. Emotional Well Being as Assessed by Short Form Survey (SF) 36

    The SF -36 has eight scaled scores; the scores are weighted sums of the questions in each section. Scores range from 0 - 100. Lower scores = more disability, higher scores = less disability

    Time frame: Up to 14 days postop

  9. Pain as Assessed by Short Form Survey (SF) 36

    The SF -36 has eight scaled scores; the scores are weighted sums of the questions in each section. Scores range from 0 - 100. Lower scores = more disability, higher scores = less disability

    Time frame: Up to 14 days postop

  10. General Health as Assessed by Short Form Survey (SF) 36

    The SF -36 has eight scaled scores; the scores are weighted sums of the questions in each section. Scores range from 0 - 100. Lower scores = more disability, higher scores = less disability

    Time frame: Up to 14 days postop

07

Results

Posted Feb 12, 2018

Participant flow

Participant flow — Overall Study
MilestonePrevenaStandard Dressing
Started11
Completed11
Not completed00

Outcome measures

PrimarySurgical Site Infection According to National Healthcare Safety Network - Center for Disease Control Guidelines

The incidence of postoperative surgical site infection (according to National Healthcare Safety Network - Center for Disease Control guidelines) in open surgery

Time frame:
Up to 7 days postop
Reported as:
Number · Surgical Site infections
Surgical Site Infection According to National Healthcare Safety Network - Center for Disease Control Guidelines
Surgical Site infectionsPrevenaStandard Dressing
Surgical Site Infection According to National Healthcare Safety Network - Center for Disease Control Guidelines00
SecondaryOther Wound Complications (Aggregate)

Dehiscence, seroma and hematoma. Reported as number of aggregate events.

Time frame:
Up to 14 days postop
Reported as:
Number · aggregate wound complication events
Other Wound Complications (Aggregate)
aggregate wound complication eventsPrevenaStandard Dressing
Other Wound Complications (Aggregate)00
SecondarySkin Bacterial Count as Assessed by Microbacterial Count

Skin bacterial count after removal of either Prevena or standard dressing. A micro-bacterial swap will be performed and sent to the microbiology lab for assessing bacterial count

Time frame:
Up to 7 days postop

No measurements were reported for this outcome.

SecondaryPhysical Function as Assessed by Short Form Survey (SF) 36

The SF -36 has eight scaled scores; the scores are weighted sums of the questions in each section. Scores range from 0 - 100. Lower scores = more disability, higher scores = less disability

Time frame:
Up to 14 days postop
Reported as:
Mean · units on a scale
Physical Function as Assessed by Short Form Survey (SF) 36
units on a scalePrevenaStandard Dressing
Physical Function as Assessed by Short Form Survey (SF) 36100 (100 to 100)85 (85 to 85)
SecondaryReadmissions

Readmission events for the patients.

Time frame:
Up to 30 days postop
Reported as:
Number · readmission events
Readmissions
readmission eventsPrevenaStandard Dressing
Readmissions00
SecondaryRole Limitations Due to Physical Health as Assessed by Short Form Survey (SF) 36

The SF -36 has eight scaled scores; the scores are weighted sums of the questions in each section. Scores range from 0 - 100. Lower scores = more disability, higher scores = less disability

Time frame:
Up to 14 days postop
Reported as:
Mean · units on a scale
Role Limitations Due to Physical Health as Assessed by Short Form Survey (SF) 36
units on a scalePrevenaStandard Dressing
Role Limitations Due to Physical Health as Assessed by Short Form Survey (SF) 36100 (100 to 100)100 (100 to 100)
SecondarySocial Functioning as Assessed by Short Form Survey (SF) 36

The SF -36 has eight scaled scores; the scores are weighted sums of the questions in each section. Scores range from 0 - 100. Lower scores = more disability, higher scores = less disability

Time frame:
Up to 14 days postop
Reported as:
Mean · units on a scale
Social Functioning as Assessed by Short Form Survey (SF) 36
units on a scalePrevenaStandard Dressing
Social Functioning as Assessed by Short Form Survey (SF) 36100 (100 to 100)100 (100 to 100)
SecondaryEnergy / Fatigue as Assessed by Short Form Survey (SF) 36

The SF -36 has eight scaled scores; the scores are weighted sums of the questions in each section. Energy and fatigue are aggregated in this section. Scores range from 0 - 100. Lower scores = more disability, higher scores = less disability

Time frame:
Up to 14 days postop
Reported as:
Mean · units on a scale
Energy / Fatigue as Assessed by Short Form Survey (SF) 36
units on a scalePrevenaStandard Dressing
Energy / Fatigue as Assessed by Short Form Survey (SF) 3650 (50 to 50)75 (75 to 75)
SecondaryEmotional Well Being as Assessed by Short Form Survey (SF) 36

The SF -36 has eight scaled scores; the scores are weighted sums of the questions in each section. Scores range from 0 - 100. Lower scores = more disability, higher scores = less disability

Time frame:
Up to 14 days postop
Reported as:
Mean · units on a scale
Emotional Well Being as Assessed by Short Form Survey (SF) 36
units on a scalePrevenaStandard Dressing
Emotional Well Being as Assessed by Short Form Survey (SF) 3660 (60 to 60)60 (60 to 60)
SecondaryPain as Assessed by Short Form Survey (SF) 36

The SF -36 has eight scaled scores; the scores are weighted sums of the questions in each section. Scores range from 0 - 100. Lower scores = more disability, higher scores = less disability

Time frame:
Up to 14 days postop
Reported as:
Mean · units on a scale
Pain as Assessed by Short Form Survey (SF) 36
units on a scalePrevenaStandard Dressing
Pain as Assessed by Short Form Survey (SF) 36100 (100 to 100)100 (100 to 100)
SecondaryGeneral Health as Assessed by Short Form Survey (SF) 36

The SF -36 has eight scaled scores; the scores are weighted sums of the questions in each section. Scores range from 0 - 100. Lower scores = more disability, higher scores = less disability

Time frame:
Up to 14 days postop
Reported as:
Mean · units on a scale
General Health as Assessed by Short Form Survey (SF) 36
units on a scalePrevenaStandard Dressing
General Health as Assessed by Short Form Survey (SF) 36100 (100 to 100)65 (65 to 65)

Adverse events

Collected over From consent to end of study (30 days). Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Prevena0/1 (0%)0/1 (0%)0/1 (0%)
Standard Dressing0/1 (0%)0/1 (0%)0/1 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)PrevenaStandard DressingTotal
Mean34 (34 to 34)45 (45 to 45)39.5 (34 to 45)
Sex: Female, Male
Sex: Female, Male(Participants)PrevenaStandard DressingTotal
Female000
Male112
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)PrevenaStandard DressingTotal
African American112
Region of Enrollment
Region of Enrollment(Participants)PrevenaStandard DressingTotal
United States112
Region of Enrollment
Region of Enrollment(Participants)PrevenaStandard DressingTotal
United States112
08

Study locations

1 site
  • Johns Hopkins Medical Institutes
    Baltimore, Maryland 21287, United States
09

References and documents

Study documents

  • Protocol and statistical analysis plan · May 5, 2016

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 26, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02461433
Collaborators
Kinetic Concepts, Inc.
Responsible party
Sponsor
First posted
Jun 3, 2015
Start date
Jun 2015
Primary completion
Mar 2017
Completion
Mar 2017
Results posted
Feb 12, 2018
Last update
Feb 26, 2019

Study contacts

Kimberley Steele, MD, PHD
principal investigator · Johns Hopkins University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Feb 2019. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion