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Extended Oral Antibiotic Prophylaxis in Diabetic Fracture Patients

Extended Oral Antibiotic Prophylaxis in Diabetic Patients With Lower Extremity Fracture: A Multicenter Pilot Randomized Controlled Trial

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07561541
Enrollment
40
Registered
2026-05-01
Start date
2026-04-01
Completion date
2027-12-31
Last updated
2026-05-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes, Fracture Fixation, Internal, Fracture Lower Leg

Keywords

Diabetes, Lower extremity fracture, Extended oral antibiotic prophylaxis

Brief summary

The goal of this clinical trial is to learn if taking an antibiotic pill for 7 days after surgery reduces the risk of wound infection in adults with poorly controlled diabetes who have surgery to fix a broken bone in the leg, ankle, or foot. It will also learn about the safety of the extended antibiotic course. The main questions it aims to answer are: Does a 7-day antibiotic course after surgery lower the rate of wound infection within 90 days? What medical problems do participants have when taking the extended antibiotic course? Researchers will compare a 7-day course of an oral antibiotic (cefadroxil) to standard care (no additional antibiotics after surgery) to see if the extended course reduces infections. Participants will: Take an antibiotic pill or receive standard care for 7 days after surgery Receive a phone call from the study team about 1 week after surgery Visit the clinic at 3 weeks, 6 weeks, and 3 months after surgery for checkups

Detailed description

The purpose of this research study is to investigate whether a 7-day course of an oral, prophylactic antibiotic following surgical fixation of a lower extremity fracture effectively decreases the risk of surgical site infection in patients with poorly controlled diabetes. Patients with an uncontrolled hemoglobin A1c greater than 7.0 or a random blood glucose greater than 200 mg/dL undergoing operative fixation of a closed fracture of the distal femur, patella, tibial plateau, tibial shaft, pilon, ankle, talus, calcaneus, or other operative foot fracture are considered high-risk for surgical site infection and are the target population for this study. Study participants will be randomized to either a 7-day course of an oral prophylactic antibiotic following surgery (cefadroxil 500 mg twice daily, or an alternative regimen based on allergy status or methicillin-resistant Staphylococcus aureus colonization) or standard care with no additional antibiotics beyond the standard perioperative intravenous antibiotic dosing. All other standard perioperative fracture care will remain the same for both groups. Outcomes assessed will include superficial and deep surgical site infection occurring within 90 days of surgery, antibiotic-related adverse effects, and patient compliance with the extended antibiotic regimen.

Interventions

Cefadroxil 500 mg, twice a day for 7 days

DRUGClindamycin

Clindamycin 300 mg, three times a day for 7 days

Bactrim DS, twice a day for 7 days

Sponsors

Texas Tech University Health Sciences Center, El Paso
Lead SponsorOTHER
University of Southern California
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Low extremity fracture requiring surgical treatment * Uncontrolled diabetes (Hemoglobin A1c \> 7.0 or random glucose \> 200 mg/dL) * Age 18 years or older * Able to provide informed consent * English or Spanish speaker

Exclusion criteria

* Known allergy to prescribed antibiotic and pre-determined alternatives * Open fractures * Current infection requiring antibiotic treatment * Immunocompromised status (chemotherapy, immunosuppressant medications) * End-stage renal disease that medication dosing cannot be adjusted for * Pregnant or breast-feeding * Unable to comply with follow-up

Design outcomes

Primary

MeasureTime frameDescription
Surgical site infection90 daysIncidence of superficial infection (a wound with erythema, warmth, or drainage that is treated with oral antibiotics or wound care) and deep infection (per fracture-related infection definition).

Secondary

MeasureTime frameDescription
Antibiotic-related adverse effects90 daysIncidence of antibiotic-related adverse effects
Compliance with antibiotic regimen1 weekNumber of patients completing prescribed antibiotic regimen or not

Countries

United States

Contacts

CONTACTTaylor M Yong, MD, MS
tayong@ttuhsc.edu915-215-5480

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 9, 2026