Clinical trial Recruiting at 1 site Phase 3 Interventional Ages 18 and up

Evaluating the need for antibiotics after mandible fracture surgery

Official title: Should we Use Post-operative Antibiotics Following Surgery for Patients With Mandible Fractures? The MANTRA Trial (MANdibular TRauma and Antibiotic Use)

Run by East Lancashire Hospitals NHS Trust · NCT05964140 · Data updated 2026-11-12

This study is testing if giving antibiotics after surgery for jaw fractures is really needed to help prevent infections in adults.

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment2841 (estimated)
SponsorEast Lancashire Hospitals NHS Trust
Academic / other
Locations2 sites (Blackburn, Lancashire and 1 other locations)
StatusRecruiting
StartedDecember 6, 2024
Main results expectedJune 30, 2027
Study endsDecember 31, 2027
Registry record updatedJanuary 22, 2026
Trial IDNCT05964140 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and over with mandible fractures requiring surgical treatment.

Probably not a fit

Patients with isolated mandibular condylar fractures or existing infections may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This trial investigates whether post-operative antibiotics are necessary for patients undergoing surgery for mandible fractures. It aims to determine the effectiveness of different antibiotic regimens in preventing surgical site infections, which are a concern due to the proximity of the oral cavity microbes to the surgical site. The study will involve adult patients who require surgical intervention for mandible fractures, with eligibility determined through emergency departments and specialized trauma clinics. The findings could help refine antibiotic use in this common surgical procedure.

Why it matters

Potential benefit: If successful, this study could reduce unnecessary antibiotic use and associated resistance in patients undergoing mandible fracture surgery.

How similar studies have gone: Previous studies have explored antibiotic use in surgical settings, but this specific approach to mandible fractures is novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
All adult patients aged 18 years or over with mandible fractures requiring surgery. Most of these patients will be identified from the A\&E department via the on-call OMFS team or seen in dedicated OMFS trauma clinics. A small proportion of our study population will be seen in an OMFS clinic following referral from GP/GDP.

Inclusion Criteria:

* Ability to provide written informed consent
* Age≥18 years
* Hospital episode of mandible fracture(s)
* Planned treatment is surgery - (ORIF with titanium miniplates)

Exclusion Criteria:

* Isolated mandibular condylar fractures
* Existing fracture site infection
* Immunocompromised (transplant patients, haematological malignancies, HIV/AIDS) - a clear definition will be provided in the protocol
* Pathological fracture (e.g., malignancy, osteoradionecrosis, cysts, Medication-Related Osteonecrosis of the Jaws \[MRONJ\])
* Fractures open to skin
* Inability to provide written informed consent
* Other injuries or infections mandating ongoing post-operative antibiotics (e.g., panfacial fractures with mandible fracture component)
* Patients allergic to first and second-line antibiotic prophylaxis (as outlined above)

Where it's running

  • East Lancashire Hospitals NHS Trust
    Blackburn, Lancashire, United Kingdom
    Recruiting
  • East Lancashire Hospitals NHS Trust
    Blackburn, Lancashire, United Kingdom
    Not yet recruiting

Study contacts

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
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Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.