ISRCTN - ISRCTN95232781: Electronically delivered, multi-component intervention to reduce unnecessary antibiotic prescribing in primary care

Plain English Summary

Background and study aims
Antibiotics are vitally important medicines. They are used to treat infections caused by bacteria, some of which would otherwise kill the person affected. In recent years, however, antibiotic resistance, a situation where an antibiotic no longer works against one or more bacteria, has become a major problem. It has been caused by a number of factors, including general practitioners (GPs) prescribing them for minor illnesses that do not need them or for conditions that antibiotics cant cure (such as the common cold). Here, we are going to test whether an electronically delivered, multi-component intervention can reduce the number of unnecessary antibiotic prescriptions given to patients that go to their GP about a respiratory tract infection (RTI an infection of the sinuses, throat, airways or lungs).

Who can participate?
General practices that contribute up-to-standard data to the Clinical Practice Research Datalink (CPRD), the NHS observational data and interventional research service.

What does the study involve?
Participating CPRD general practices are randomly allocated into one of two groups. Those in the control group continue with their usual clinical care. Those in the interventional group receive an intervention made up of a number of parts. These include feedback on their rate of antibiotic prescribing compared to other GP practices, educational and decision support tools to support the none prescribing or delayed prescribing of antibiotics, and three minute webinars that explain and promote the use of the materials they are given. The study is run for 12 months, after which the antibiotic prescribing rates between the intervention and control groups are made, along with other outcome measures such as RTI consultation rate, health care costs, number of cases of pneumonia and lower respiratory tract infections and hospital admissions.

What are the possible benefits and risks of participating?
This research looks at inappropriate and unnecessary prescribing of antibiotics to patients with respiratory tract infections (RTIs) in general practice. All management decisions for individual patients remain at the discretion of individual general practitioners. Therefore, we do not anticipate any potential serious adverse events that could be directly caused by the intervention. However, we will ask general practitioners at participating general practices to tell us of any possible adverse events.

Where is the study run from?
Kings College London (UK)

When is the study starting and how long is it expected to run for?
January 2015 to December 2018

Who is funding the study?
National Institute for Health Research (UK)

Who is the main contact?
Professor Martin Gulliford

Trial website

Contact information

Type

Scientific

Primary contact

Prof Martin Gulliford

ORCID ID

Contact details

King's College London
Department of Primary Care and Public Health Sciences
Capital House
52 Weston Street
London
SE1 3QD
United Kingdom
+44 (0)2078486631
martin.gulliford@kcl.ac.uk

Additional identifiers

EudraCT number

ClinicalTrials.gov number

Protocol/serial number

13/88/10

Study information

Scientific title

Electronically delivered, multi-component intervention to reduce unnecessary antibiotic prescribing in primary care. Cluster randomised trial using electronic health records (eCRT2)

Acronym

eCRT2

Study hypothesis

To test the effectiveness, in a cluster randomised controlled trial, of electronically delivered, multi component interventions to reduce unnecessary antibiotic prescribing when patients consult for respiratory tract infections (RTI) in primary care.

Ethics approval

NRES London Dulwich, 08/10/2014, ref. 14/LO/1730.

Study design

Cluster randomised trial with general practices as the unit of allocation

Primary study design

Interventional

Secondary study design

Cluster randomised trial

Trial setting

GP practices

Trial type

Prevention

Patient information sheet

Not available in web format, please use contact details to request a participant information sheet

Condition

Antibiotic prescribing/respiratory tract infections

Intervention

There will be two trial arms.
1. The control trial arm practices will continue with usual clinical care.
2. Practices in the Intervention trial arm will receive complex multi-component interventions, delivered remotely, as follows:
2.1. Feedback of each practices antibiotic prescribing results in relation to peers, through monthly updated antibiotic prescribing reports estimated from CPRD data
2.2. Delivery of educational and decision support tools to support policies of no-antibiotic prescribing or delayed prescribing
2.3. Three minute webinars to explain and promote effective utilisation of the intervention materials. The intervention will continue for 12 months.

Intervention type

Other

Phase

Not Applicable

Drug names

Primary outcome measures

Number of antibiotic prescriptions for RTI per 1,000 registered patient years at 12 months follow-up

Secondary outcome measures

1. Number of consultations for RTI with antibiotic prescribed / Total RTI consultations (%) at 12 months follow-up
2. Consultations and prescriptions as defined above during 14 days after the index consultation at 12 months follow-up
3. Number of consultations for RTI per 1,000 registered patient years 12 months follow-up
4. All antibiotic prescriptions per 1,000 registered patient years at 12 months follow-up
5. Number of hospital admission (by category) per 1,000 registered patient years at 12 months follow-up
6. Estimated costs of all health care utilisation per 1,000 registered patient years at 12 months follow-up
7. Broad categories of RTI subgroups including colds, sore throat, cough and bronchitis, otitis media and rhino-sinusitis (NICE, 2008) at 12 months follow-up
8. Number of adverse events ((peritonsillar abscess, mastoiditis, skin infections and bacterial infections) (by category) per 1,000 registered patient years over at 12-months follow-up

Overall trial start date

01/01/2015

Overall trial end date

31/12/2018

Reason abandoned

Eligibility

Participant inclusion criteria

General practices will be included in the trial if:
1. They presently contribute up-to-standard data to CPRD
2. Consent to participation in the trial
3. Are located in areas that have given research governance approval for the study

Data for non-trial CPRD practices will be eligible for observational data analysis to gauge the representativeness of practices and patients participating in the trial.
Data for individual participants will be included if they are currently registered with CPRD general practices

Participant type

Patient

Age group

Other

Gender

Both

Target number of participants

120

Participant exclusion criteria

No other exclusion criteria

Recruitment start date

01/01/2015

Recruitment end date

31/12/2018

Locations

Countries of recruitment

United Kingdom

Trial participating centre

King's College London
London
SE1 3QD
United Kingdom

Sponsor information

Organisation

National Institute for Health Research (UK)

Sponsor type

Government

Website

http://www.nets.nihr.ac.uk/programmes/hta

Funders

Funder type