Best Assessment of Sore Throat and Antibiotic Prescribing (BASTA)

March 12, 2026 updated by: Vastra Gotaland Region
This project aims to investigate if an organisational change of patient flow away from medical practitioners can reduce unnecessary antibiotic prescribing in patients attending with a sore throat as the main complaint.

Study Overview

Detailed Description

Today patients appear either at a PHC centre or at the Pharmacy. The Pharmacy may provide advice on analgesic or refer the patient to a PHC centre. At the PHC centre, the patient may first appear to the medical practitioner or a nurse pending on local routines. The current Swedish guideline recommends no antibiotics and no testing for patients with 0-2 Centor criteria. For patients with 3-4 Centor criteria the guideline recommends testing and only consider antibiotics if GAS is present.

COVID-19 has gradually transformed from expressing itself as a severe lower respiratory tract infection to be more of an upper respiratory tract infection. Furthermore, COVID-19 is likely to transform from a pandemic to an endemic state with a low continuous incidence. Hence, in response to COVID-19 it seems crucial to identify to what extent the common sore throat is caused by the SARS-CoV-2.

Furthermore, a large controlled clinical trial is required to sort out if patients attending with a sore throat as the main complaint are best managed by medical practitioners, nurses or pharmacists. This study aims to perform such a controlled clinical trial comparing the outcome of sore throat patients management by medical practitioner, nurses and pharmacists. This study also aims to investigate to what extent the SARS-CoV-2 virus is identified in these patients.

Study Type

Interventional

Enrollment (Estimated)

450

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

      • Stenungsund, Sweden, 4430
        • Recruiting
        • Apoteket
        • Contact:
          • Mina Khalil
      • Stenungsund, Sweden, 44430
        • Recruiting
        • Närhälsan Stenungsund Vårdcentral
        • Contact:
          • Annelie Jardek
      • Ulricehamn, Sweden, 52337
        • Recruiting
        • Praktikertjänst Hälsobrunnen Vårdcentral
        • Contact:
          • Dennis Johansson
      • Ulricehamn, Sweden
        • Recruiting
        • Apoteksgruppen
        • Contact:
          • Sofia Pihlgren

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • The patient is contacting/attending PHC centre or Pharmacy presenting with a sore throat as the main complaint.
  • Male or female, aged ≥6 years.
  • Fluent in Swedish (reading, writing, conversational) (applicable to caregivers/parents/guardians in case of children).
  • Mental state such that he or she can understand and give informed consent to participation in the study by signing the Information and Consent Form.
  • Provision of signed and dated Informed Consent Form.

Exclusion Criteria:

  • The illness episode is classified as potentially complicated or potentially critically ill
  • Presence of SARS-CoV-2 virus in a patient first appearing at the PHC in a cluster where the assessment is supposed to be done by the pharmacists. The patient will not be sent to the pharmacist in case of presence of SARS-CoV-2-virus.
  • Patient request to be withdrawn from the study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Initial assessement by nurses
Patients attending with an acute sore throat are initially assessed by a nurse. This is one variant of current standard practice.
Nurses are asked to assess patients following the current Swedish guideline
Active Comparator: Initial assessement by physicians
Patients attending with an acute sore throat are initially assessed by a physician. This is one variant of current standard practice.
Physicians are asked to assess patients following the current Swedish guideline
Experimental: Initial assessement by pharmacists
Patients attending with an acute sore throat are initially assessed by a pharmacist. This is officially not standard practice in Sweden, although it happens.
Pharmacists are asked to assess patients following the current Swedish guideline

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Guideline adherence
Time Frame: Immediately after the consultation
Will the proportion of patients attending for an uncomplicated acute sore throat being managed according to prevailing guidelines differ if the initial assessment is made by a medical practitioner, a trained nurse or a trained pharmacist
Immediately after the consultation

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Illness severity
Time Frame: Immediately after the consultation
What proportion of patients attending PHC centres or pharmacies are classified as apparently uncomplicated, potentially complicated or potentially critically ill
Immediately after the consultation
Type of patients seeking care
Time Frame: Immediately after the consultation
Will patient characteristics differ if the patient first appears to the medical practitioner, a trained nurse or a trained pharmacist?
Immediately after the consultation
Presence of SARS-CoV-2 virus
Time Frame: Immediately after the consultation
To what extent do patients attending Primary Health Care/Pharmacies due to an acute sore throat harbour the SARS-CoV-2 virus?
Immediately after the consultation

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Collaborators

Investigators

  • Principal Investigator: Ronny Gunnarsson, PhD, University of Gothenburg and Region Vastra Gotaland

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 4, 2024

Primary Completion (Estimated)

June 30, 2027

Study Completion (Estimated)

June 30, 2027

Study Registration Dates

First Submitted

October 23, 2023

First Submitted That Met QC Criteria

October 27, 2023

First Posted (Actual)

November 2, 2023

Study Record Updates

Last Update Posted (Actual)

March 16, 2026

Last Update Submitted That Met QC Criteria

March 12, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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