Recruiting
Phase 3

Antibiotic Cement Bead Pouch vs. Negative Pressure Wound Therapy

Sponsor:

University of Maryland, Baltimore

Code:

NCT05615844

Conditions

Open tíbia Fracture

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Interventions

Antibiotic Cement Bead Pouch

Negative Pressure Wound Therapy

Study Details

Brief summary:

The Beads vs Vac trial is a multi-centre randomized controlled trial of 312 participants with a severe open tibia fracture requiring multiple irrigation and debridement surgeries. Eligible participants will be randomized to receive either an antibiotic bead pouch or negative pressure wound therapy (NPWT) for their temporary open fracture wound management. Outcomes will be assessed at 6 weeks, 3 months, and 6 months post-surgery. The primary outcome will be a composite outcome to evaluate clinical status six months after randomization. Components of the composite outcome will be hierarchically assessed in the following order: 1) all-cause mortality, 2) injury-related amputation of the lower extremity, 3) unplanned reoperation to manage wound complications, infection, or delayed fracture healing, and 4) clinical fracture healing as assessed using the Functional IndeX for Trauma (FIX-IT) instrument. The secondary outcomes will independently assess the four components of the primary outcome. This is a Phase III trial.

Conditions

Open tíbia Fracture

Study ID

NCT05615844

Start date

Nov 5, 2023

Status verified date

Feb, 2026

Completion date

Oct 1, 2027

Anticipated

Primary completion date

Mar 31, 2027

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

The inclusion criteria are:

1. Patients 18 years of age or older.
2. Severe open tibia fracture requiring more than one irrigation and debridement procedure to treat the open fracture.
3. Planned internal or external fixation for definitive fracture management.
4. Formal surgical debridement within 72 hours of their injury.
5. Will have all planned fracture care surgeries performed by a participating surgeon or delegate.
6. Informed consent obtained.

The exclusion criteria are:

1. Due to the severity of injury, the treating surgeon does not believe limb salvage >6 months is likely to be successful based on the emergency department or initial intraoperative assessment (prior to enrolment and randomization).
2. Medical contraindication to antibiotic beads, including previously known allergies or sensitivities to vancomycin and/or tobramycin.
3. Medical or injury contraindication to NPWT. Injury contraindications could include situations in which the NPWT could not be placed over a vascular graft or exposed neurovascular structure.
4. Received previous surgical debridement or management of their fracture at a non-participating hospital or clinic (as applicable).
5. Chronic or acute infection at or near the fracture site at the time of initial fracture surgery.
6. Incarceration.
7. Women of child-bearing potential who are pregnant or intending to become pregnant within the next 6 months.
8. Currently enrolled in a study that does not permit co-enrollment.
9. Unable to obtain informed consent due to language barriers.
10. Anticipated problems, in the judgment of research personnel, with maintaining follow-up with the patient.
11. Prior enrollment in the trial.
12. Other reason to exclude the patient, as approved by the Methods Center.

Study Design

Enrollment

312 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

experimental: Antibiotic Cement Bead Pouch

The antibiotic cement bead pouch involves placing temporary non-absorbable antibiotic-laden cement beads into the open fracture wound and sealing the wound with a large occlusive dressing for prophylaxis against bacteria.

The antibiotic beads used will be prepared intraoperatively by the surgical team. The bead recipe will be comprised of a ratio of 2 grams of vancomycin, 2.4 grams of tobramycin, and 40g (one bag) of PMMA cement. The beads will be handmade and approximately 10-mm in diameter. The number of beads placed in the wound will be at the discretion of the treating surgeon based on recipient wound size. As commonly practiced, the antibiotic beads may be exchanged for new beads at each subsequent irrigation and debridement surgery. The number of beads, the number of replaced beads, and the removal of the antibiotic beads will be recorded.

active comparator: Negative Pressure Wound Therapy (NPWT)

The NPWT system is a sealed dressing placed over the open fracture wound that includes an occlusive plastic wound dressing connected to a vacuum pump, tubing, and a canister to collect fluid. The pump creates a vacuum seal and exerts negative pressure on the wound to remove fluid and maintain a sealed environment. NPWT promotes wound healing through four primary mechanisms: 1) wound shrinkage or macrodeformation; 2) microdeformation at the foam-wound surface interface; 3) fluid removal; and 4) stabilization of the wound environment.

125 mmHg continuous negative pressure is the recommended NPWT device setting; however, the treating surgeon will be allowed to adjust these settings as clinically necessary.

The frequency and timing of NPWT changes will also be at the surgeon's discretion but is expected to primarily coincide with the timing of repeat debridement, typically every 24-72 hours until definitive management has occurred.

Interventions

Antibiotic Cement Bead Pouch

The antibiotic bead pouch provides an antibiotic delivery mechanism. It is made by combining polymethyl methacrylate (PMMA) cement with generic forms of vancomycin and tobramycin powder.

Negative Pressure Wound Therapy

Standard application of negative pressure wound therapy

Primary outcome measure

  • Clinical status [ Time Frame: 6 months ]

Central Contacts and Locations

Central contacts

Locations

Dignity Health Chandler Regional Medical Center

Recruiting

Chandler, Arizona, United States, 85224

Contacts

University of Arizona

Recruiting

Tucson, Arizona, United States, 85721

Contacts

University of California, Davis

Recruiting

Davis, California, United States, 95616

Contacts

University of Southern California

Recruiting

Los Angeles, California, United States, 90033

Cedars-Sinai Medical Center

Recruiting

Los Angeles, California, United States, 90048

Contacts

University of California, Irvine

Recruiting

Orange, California, United States, 92868

Contacts

University of Florida

Recruiting

Gainesville, Florida, United States, 32611

University of Miami

Recruiting

Miami, Florida, United States, 33146

Contacts

Indiana University

Recruiting

Indianapolis, Indiana, United States, 46202

Contacts

University of Maryland, R Adams Cowley Shock Trauma Center

Recruiting

Baltimore, Maryland, United States, 21201

Contacts

Heather Phipps

410-706-2492

Principal Investigator:

Mark Gage, MD

University of Maryland Capital Region Health

Recruiting

Largo, Maryland, United States, 20774

Contacts

Beth Israel Deaconess Medical Center

Recruiting

Boston, Massachusetts, United States, 02215

Contacts

University of Mississippi

Recruiting

University, Mississippi, United States, 38677

Bryan Medical Center

Recruiting

Lincoln, Nebraska, United States, 68506

Contacts

Dartmouth-Hitchcock Medical Center

Recruiting

Lebanon, New Hampshire, United States, 03766

Sanford Medical Center

Recruiting

Fargo, North Dakota, United States, 58103

Contacts

University of Cincinnati

Recruiting

Cincinnati, Ohio, United States, 45219

Bon Secours Mercy Health

Recruiting

Cincinnati, Ohio, United States, 45237

Contacts

Slocum Center

Recruiting

Eugene, Oregon, United States, 97401

Contacts

Ortegon Health & Science University

Recruiting

Portland, Oregon, United States, 97239

Prisma Health - Midlands

Recruiting

Columbia, South Carolina, United States, 29203

Contacts

Prisma Health

Recruiting

Greenville, South Carolina, United States, 29605

Sanford Health

Recruiting

Sioux Falls, South Dakota, United States, 57104

Contacts

University of Utah

Recruiting

Salt Lake City, Utah, United States, 84112

Inova Fairfax

Recruiting

Falls Church, Virginia, United States, 22042

Royal Columbian Hospital

Recruiting

New Westminster, British Columbia, Canada, V3L 3W7

University of British Columbia

Recruiting

Vancouver, British Columbia, Canada, V5Z 1M9

Contacts

Hamilton Health Sciences

Recruiting

Hamilton, Ontario, Canada, L8L 2X2

London Health Sciences Centre

Recruiting

London, Ontario, Canada, N6C 2R6

Contacts

The Ottawa Hospital

Recruiting

Ottawa, Ontario, Canada, K1Y 4E9

Contacts

More Information

Sponsor

University of Maryland, Baltimore

Last update posted

Sep 3, 2026

Last verified

Feb, 2026

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-09. This information was provided to ClinicalTrials.gov by University of Maryland, Baltimore on 2026-09-03.