IO Vancomycin Administration in TKA (IO Vanco)

June 2, 2026 updated by: Scott Ball, MD, University of California, San Diego

Systemic Vancomycin Levels in Intraosseous Administration During Total Knee Arthroplasty

This is a prospective, single-center, open-label study evaluating systemic vancomycin levels following preoperative intraosseous administration in patients undergoing primary unilateral total knee arthroplasty. Eligible participants will receive preoperative intraosseous vancomycin (500 mg in 100 mL saline) as part of standard perioperative infection prophylaxis. The study is open-label due to the nature of the intervention. Blood samples will be collected at predefined time points intraoperatively to measure serum vancomycin concentrations. Patients will be randomized to either a tourniquet or no tourniquet for these blood draws.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

30

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • United States
    • California
      • San Diego, California, United States, 92093
        • UC San Diego
        • Principal Investigator:
          • Scott Ball, MD
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Is a patient over the age of 18 receiving treatment at UC San Diego
  2. Is undergoing primary unilateral total knee arthroplasty
  3. Is able to provide consent
  4. Is candidate for IO administration of Vancomycin

Exclusion Criteria:

  1. Has had a previous surgery on the knee of interest (with the exception of arthroscopy)
  2. Has a BMI >35
  3. Has a contraindication to receiving vancomycin, cefepime, or cefazolin (i.e. allergy)
  4. Has diabetes with A1c >7.5% (unless with controlled fructosamine)
  5. Is immunocompromised/immunosuppressed (i.e. due to HIV, hepatitis C, end-stage renal disease, post-transplant status, chemotherapy or radiation therapy within 6 months of surgery, immunomodulating medications)
  6. Has a history of active infection
  7. Inability to provide consent
  8. Prisoner
  9. Pregnant women

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Non tourniquet IO Vancomycin
TKA IO Vancomycin administration with no tourniquet.
Drug: Intraosseous Vamcomycin Administration
IO Vancomycin Administration in TKA
Other: Tourniquet IO Vancomycin
TKA IO Vancomycin Administration with tourniquet
Drug: Intraosseous Vamcomycin Administration
IO Vancomycin Administration in TKA

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Serum Vancomycin Levels
Time Frame: From administration up to 30 minutes post-administration.
Serum Vancomycin Levels following IO Vancomycin administration
From administration up to 30 minutes post-administration.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of California, San Diego

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

June 1, 2026

Primary Completion (Estimated)

April 29, 2027

Study Completion (Estimated)

April 29, 2029

Study Registration Dates

First Submitted

June 2, 2026

First Submitted That Met QC Criteria

June 2, 2026

First Posted (Actual)

June 8, 2026

Study Record Updates

Last Update Posted (Actual)

June 8, 2026

Last Update Submitted That Met QC Criteria

June 2, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • 804904

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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