The main objective of the study is to compare efficacy between hyaluronic acid - chondroitin sulphate (HA-CS) treatment and gold standard treatment (AB prophylaxis). Study is set-up as non-inferiority, parallel group trial, with a 1:1 randomization.~Study population: Female (>18rs) with at least 3 symptomatic urinary tract infections (UTI's) in the previous year with no adequate curable therapeutic options.~Intervention: Intervention group (n=50): 50ml of sterile Ialuril (HA 1.6% CS 2%) weekly for 6 weeks, followed by monthly maintenance therapy for 1 year. Control group (n=50): oral nitrofurantoin 100mg daily (1dd100mg or 2dd50mg) for 1 year. In case of resistance/intolerance/allergy for nitrofurantoin alternatively trimethoprim 100mg daily will be given.~During the study patients will fill-out questionnaires regarding symptoms, quality of life and use of healthcare. Furthermore urine will be collected at set timepoints.~Main study parameters/endpoints: The main study parameter is the number of UTI per patient-year. Secondary parameters are time to rUTI (wks.), outcome on the global responce assessment (GRA) scale, pattern of antibiotic resistance, outcome on the patient reported outcome questionnaire, cost effectiveness and Quality-of-life.
The GT RACING is a study comparing the efficacy of HA-CS bladder installations with prophylactic antibiotics in the prevention of recurrent urinary tract infections (rUTI).