Colo-Pro_2: Bolus-continuous Infusion Cefuroxime Prophylaxis for the Prevention of Infections After Colorectal Surgery

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

180 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-05-10

Study Completion Date

2025-05-01

Brief Summary

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After a surgical operation patients may have an infection in the operation wound, the bladder, kidneys or lungs. To stop these infections patients are given a dose of antibiotic before their operation. Unfortunately, the amount of antibiotic available to fight infections falls throughout an operation, being removed from the body by the kidneys. Therefore, antibiotic levels may not be high enough to stop infections. A way of maintaining antibiotic levels throughout an operation is to give a single dose of antibiotic and then a constant amount of antibiotic by an infusion from the start to the end of the operation. A small single centre test study was previosuly undertaken into antibiotic dosing during bowel operations. One group of patients had a single dose of antibiotic before their operation. The other group had a single dose plus a constant dose of antibiotic until the end of their operation. The project showed patients were happy to take part and that the study was safe. The study helped us identify the correct amounts of antibiotic needed for the patients given the single dose plus a constant dose of antibiotic. This study was conducted at one hospital only, and wasn't big enough to confirm if one treatment was better than another or if results would be similar in other hospitals.

This study will build on the pilot study in a larger feasibility trial, the Colo-Pro\_2 trial. It will be run in three hospitals so can assess if the trial design works at different hospitals. We will see if the results suggest one treatment, single dose of antibiotics before an operation, or single dose plus a constant dose of antibiotics throughout an operation, is better. This study will include up to 180 patients having bowel operations as they have a high risk of infection. All patients will be given the same antibiotic which is called cefuroxime. Cefuroxime is already used to stop infections after surgery. Using the same antibiotic in all patients means it is possible to know if differences in the number of infections are due to how the antibiotic is given. The number of infections that happen up to 30 days after operations will be counted. Staff looking after patients after the operation and those counting the infections will not know, unless necessary, the treatment patients received. This means the results won't be influenced by knowledge of the treatment received.

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Detailed Description

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See attached protocol

Conditions

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Antibiotic Prophylaxis Colorectal Surgery

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

An anaesthetist will provide the intra-operative intervention and will the subsequently not be involved in the patients follow up or outcome assessment. alternatively, a research nurse not involved in participant follow up will provide the intra-operative intervention.

Study Groups

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Standard treatment

Cefuroxime 1.5 grams intravenous Administered in the hour before surgery and then 4 hourly intra-operatively.

Group Type ACTIVE_COMPARATOR

Cefuroxime

Intervention Type DRUG

See arm/group description

Intervention treatment

Cefuroxime loading dose of 2332mg intravenous Administered in the hour before surgery.

Following the loading dose a renal function based dosing will be given as a continuous intravenous infusion throughout surgery, as below. Continuous infusion will continue for up to 6 hours when it will return to 4 hourly dosing of cefuroxime at 1.5 grams intravenously, if required.

Creatinine clearance (ml/min) and Cefuroxime:Dose per hour (mg/hr) 40-50ml/min=723mg/hr 50-60ml/min=867mg/hr 60-70ml/min=1011mg/hr 70-80ml/min=1155mg/hr \>80ml/min=1227mg/hr

Group Type ACTIVE_COMPARATOR

Cefuroxime

Intervention Type DRUG

See arm/group description

Interventions

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Cefuroxime

See arm/group description

Intervention Type DRUG

Other Intervention Names

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Cefuroxime sodium for injection

Eligibility Criteria

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Inclusion Criteria

* Undergoing elective colorectal surgery (incision, excision or anastomosis of the large bowel, including anastomosis of small to large bowel)
* Age \>16.
* Expected duration of surgery \> 2hours
* Creatinine clearance \> 40 ml/min
* Cefuroxime/metronidazole are appropriate antibiotic prophylaxis regimens.
* Patient capable of giving informed consent
* Patients undergoing colorectal surgery plus additional surgery e.g. plastic surgery, urological surgery, gynaecological surgery.

Exclusion Criteria

* Unable to consent
* Pregnancy
* Expected duration of surgery \<2hours
* Creatinine clearance \<40ml/min
* Individual level microbiological advice for non-cefuroxime based prophylaxis
* Cephalosporin allergy
* Penicillin allergy (hypersensitivity reaction only)
* Coumarin (warfarin and acenocoumarol) treatment
* Seizure history or epilepsy
* Concurrent use of probenecid
* Current participation in a research project aimed at reducing surgical site infections (SSIs)
* Antibiotics for treatment of a systemic Gram negative infection within 12 hours of initiation of surgery (Vancomycin, Teicoplanin, Daptomycin, Linezolid, Flucloxacillin. Nitrofurantoin and Clarithromycin would be permissible antibiotics without systemic Gram negative antibiotics).
* A current diagnosis of infection at the time of study entry.
* STARR procedures (stapled trans anal resection of the rectum)
* Weight \<30kg or \>110kg

Minimum Eligible Age

16 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No