Partial Oral Antibiotic Treatment for Bacterial Brain Abscess

Trial statusRecruiting
Trial phasePhase 4
Trial typeInterventional
Biological sexAll
Age18+
SponsorHenrik Nielsen

About this trial

The investigators aim to determine if oral antibiotics are clinically acceptable as treatment of brain abscess. Following 2 weeks of standard intravenous antibiotic therapy, half of patients will continue with this treatment for another 4 weeks or longer while the other half will be assigned to oral antibiotics for the remaining duration of treatment.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

A clinical presentation (e.g. headache, neurological deficit or fever) and cranial imaging (CT or MRI) consistent with brain abscess AND

The physician responsible for the patient decides to treat the patient for bacterial brain abscess AND

Ability to take and absorb oral medications (including by nasogastric tube) AND

To have received relevant antibiotic therapy for bacterial brain abscess for 14 consecutive days before randomisation AND

Disqualifiers

Expected substantially reduced compliance with treatment (e.g. IV drug abuse)

Pregnancy (proven by positive urine or plasma human chorionic gonadotropin test in fertile women <50 years of age)

Concomitant (empirical) brain abscess treatment for tuberculosis, nocardiosis, Pseudomonas spp., fungi, toxoplasmosis or other CNS parasites

Device related brain abscesses (e.g. deep brain stimulators, ventriculo-peritoneal shunts)

Trial design

Design model

Parallel

Treatments tested in this trial

  • Early transition to oral antibiotics

    Drug

    Patients will be treated with an oral antibiotic regimen (e.g. amoxicillin + metronidazole) based upon pharmacokinetic and pharmacodynamic properties of the drugs, pathogen susceptibility, and any existing drug allergies or interactions

  • Standard treatment of intravenous antibiotics

    Drug

    Patients will continue standard intravenous antibiotic therapy for brain abscess (e.g. 3rd generation cephalosporin + metronidazole) according to international guidelines and pathogen susceptibility patterns.

Treatment groups

400 Participants
are divided into 2 treatment groups
Group A: Oral antibioticsExperimental treatment 1 intervention
Group B: Standard treatmentActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Treatment failure

A composite of number of participants with all-cause mortality, risk of intraventricular rupture of brain abscess (IVROBA), unplanned neurosurgery, relapse, or recurrence

Time frame
Six months after randomisation

Secondary outcomes

1

Treatment failure

A composite of number of participants with all-cause mortality, risk of intraventricular rupture of brain abscess (IVROBA), unplanned neurosurgery, relapse, or recurrence

Time frame
At last day of antibiotic treatment for brain abscess, and 3- and 12-months after randomisation
2

Unfavourable outcome

Number of participants with Extended Glasgow Outcome Scale score \<7, overall and stratified by study centre, oral cavity bacteria (yes/no) and largest brain abscess diameter (+/- 3 cm)

Time frame
At last day of antibiotic treatment for brain abscess, and 3-, 6-, and 12-months after randomisation
3

All-cause mortality

Number of participants with fatal outcome, overall and stratified by study centre, oral cavity bacteria (yes/no) and largest brain abscess diameter (+/- 3 cm)

Time frame
At last day of antibiotic treatment for brain abscess, and 3-, 6-, and 12-months after randomisation
4

Unplanned neurosurgery

Number of participants with unplanned (re-)aspiration or excision, overall and stratified by study centre, oral cavity bacteria (yes/no) and largest brain abscess diameter (+/- 3 cm)

Time frame
At 6 months since randomisation

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Henrik Nielsen

Lead sponsor

Aalborg University Hospital

Sponsor institution