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Calling all small animal practitioners! Invitation to join UTI trial...

SAMSoc are proud to announce the launch of a prospective study designed to establish the optimal duration of antibiotic therapy for dogs with a presumptive urinary tract infection.

The Society needs help from vets in primary care to enrol eligible cases and help us recruit 900 cases over the next 1-2 years. We are looking for all vets interested in contributing to cutting-edge clinical research and invite them to contact Committee members Andrew Kent or Fergus Allerton for more details.

The study is called STOP on SUNDAY as all eligible cases (female dogs of between 6 months and 10 years of age presenting with acute onset lower urinary tract signs) will be given sufficient antibiotics such that the course finishes on the following Sunday evening. This will allow comparison of 3,4,5,6 and 7 day courses of antibiotics.

The study has ethical approval from the University of Nottingham and an ATC from the Veterinary Medicines Directorate. All data is rapidly collated via an electronic data capture system (Castor) that is GDPR compliant. Optimising the duration of antibiotic therapy is a key step in the battle against antimicrobial resistance.

Urinary Tract Infection is a common problem encountered by vets in general practice, with 14% of all dogs acquiring a bacterial cystitis in their lifetime .


Click on the links below for more guidelines and forms. Your assistance is greatly appreciated!


STOP on Sunday (SOS) Urinary Tract Infection Trial

The current standard antibiotic course prescribed for dogs with cystitis is typically between 3-7 days. The purpose of this trial is to establish the optimal duration of antibiotic treatment for urinary tract infection in female dogs. 900+ cases are sought, with involvement of pet owners.


Start date 01/02/2021


Fergus Allerton (This email address is being protected from spambots. You need JavaScript enabled to view it. Tel: 0121 712 7070, 07964 282584)

Andy Kent (This email address is being protected from spambots. You need JavaScript enabled to view it.  Tel:  0121 712 7070)

Cases & Criteria

Click on links for details

1. To receive your individual Castor login details please email Fergus at This email address is being protected from spambots. You need JavaScript enabled to view it. providing the name of your practice.

2.  Owner consent form – this must be discussed with the owner prior to enrolment (please store completed consent forms and record that they informed consent has been acquired on your practice management system and on Castor)

3.  A summary PDF of all the steps in the study (including inclusion and exclusion criteria)

4.  A copy of the User’s guide to help familiarise yourself with CASTOR

5.  A copy of the questions for each phase of the CASTOR questionnaire:

a. Initial presentation
b. Monday after completion of the treatment course
c. 4 week follow up

This project has ethical approval.

Project Leaders