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CompletedNCT03151603REGATTAUpdated Nov 27, 2019

Reducing Antibiotic Use for Uncomplicated Urinary Tract Infection in General Practice by Treatment With Uva Ursi (UU)- a Comparative Effectiveness Trial

A Phase 4 interventional study of Arctuvan and Fosfomycin in Urinary Tract Infections, sponsored by University Medical Center Goettingen. Completed at 47 sites in Germany. Open to female participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2019-11-27.

Sponsored by University Medical Center Goettingen · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
398
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
Female
01

Study summary

It is well known that "over-treatment" of straightforward infections should be avoided as far as possible. Evidence-based data on non antibiotic treatment options for common conditions are therefore needed urgently. This randomised-controlled double blind trial examines whether initial herbal treatment with Uva Ursi, and antibiotic treatment only if symptoms persist, reduces antibiotic consumption in uncomplicated urinary tract infections (UTI) without a negative effect on symptom course and rate of recurrent UTIs. In total, 430 patients presenting with typical UTI symptoms will be included by their GPs and receive randomised either herbal treatment with uva ursi (antibiotics only if symptoms persist), or initial antibiotic treatment. Patients record symptom severity and drug intake in a diary and complete a final questionnaire after 28 days.

02

Conditions studied

  • Urinary Tract Infections

Keywords

  • Uva Ursi
  • fosfomycin
  • uncomplicated urinary tract infection of women
03

In context

Infections

6,687 studies on the registry are indexed under Infections; 807 are open to participants now.

This study's enrollment of 398 is above the median of 120 across 4,200 interventional studies indexed under Infections.

Browse Infections studies →

Lead sponsor

University Medical Center Goettingen is the lead sponsor of 61 studies on the registry; 27 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  • Women (18-75 years) with suspected UTI
  • at least two symptoms of UTI (dysuria, urgency of micturition, frequency, lower abdominal pain)
  • Written informed consent

Exclusion criteria

Exclusion Criteria:

  • signs of complicated UTI (e. g. temperature > 38°C, loin tenderness)
  • conditions that may lead to complicated infections (i.e. renal diseases, patients with urinary catheter)
  • pregnancy/ breastfeeding
  • current self-medication with UU preparations e.g. z.B. Cystinol®, Uvalysat®, Arctuvan®
  • antibiotic use in the last 7 days
  • previous UTI in the past 2 weeks
  • history of pyelonephritis
  • contraindications for trial drugs
  • serious diseases
  • inability to understand trial Information
  • current participation in another clinical trial or participation in another clinical trial within the last 4 weeks
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
398 participants (actual)

Study arms

  • Experimental
    Uva Ursi

    placebo to fosfomycin: 3 g granules orally 1x1 (day 0) and Uva Ursi: 105 mg (Arctuvan®) 3x2 tablets orally from day 0 for 5 days

    Drug: Arctuvan · Drug: Placebo to Fosfomycin

  • Active comparator
    fosfomycin

    fosfomycin (Monuril®): 3 g granules orally 1x1 (day 0), and placebo to Uva Ursi: 3x2 tablets orally from day 0 for 5 days If the patient returns with persistent/recurrent symptoms, antibiotic therapy according to the sensitivity test.

    Drug: Fosfomycin · Drug: Placebo to Arctuvan

Interventions

  • DrugArctuvan

    application of a herbal drug

  • DrugFosfomycin

    application of an antibiotic drug

  • DrugPlacebo to Arctuvan

    application of Placebo to Arctuvan

  • DrugPlacebo to Fosfomycin

    application of Placebo to Fosfomycin

06

What researchers measure

Primary outcomes

  1. antibiotic courses

    number of antibiotic courses from day 0 to day 28

    Time frame: day 0-28

  2. symptom burden

    symptom burden (AUC) from day 0 to day 7

    Time frame: day 0-7

Secondary outcomes

  1. early relapses

    number of early relapses until day 14

    Time frame: day 0-14

  2. recurrent UTI

    number of recurrent UTI day 15-28

    Time frame: day 15-28

  3. symptom resolution

    number of patients with symptom resolution on day 4/7

    Time frame: day 4 and 7

  4. symptom sum score by patients' questionnaire

    mean daily symptom sum scores from day 0 to day 7; Each of the symptoms dysuria, urgency, frequency and lower abdominal pain is scored daily on a five point scale from 0 "none" to 4 "very strong" in a patients' questionnaire.

    Time frame: day 0-7

  5. symptom burden for dysuria

    symptom burden (AUC) for dysuria scored daily on a five point scale from 0 "none" to 4 "very strong", from day 0 to day 7

    Time frame: day 0-7

  6. symptom burden positive urine culture

    symptom burden (AUC) day 0-7 of patients with positive urine culture

    Time frame: day 0-7

  7. symptom burden negative urine culture

    symptom burden (AUC) day 0-7 of patients with negative urine culture

    Time frame: day 0-7

  8. activity impairment by UTI symptoms, measured as AUC

    activity impairment by UTI symptoms (days 0-7), measured as AUC. Impairment by each UTI symptom is scored daily on a five point scale from 0 "none" to 4 "very strong".

    Time frame: day 0-7

  9. painkillers

    use of painkillers (Defined Daily Dose (DDD) day 0-7)

    Time frame: day 0-7

  10. patients taking painkillers

    number of patients taking painkillers

    Time frame: day 28

  11. antibiotic use

    antibiotic use (defined daily dose (DDD) day 0-28)

    Time frame: day 0-28

  12. UTI related visits

    number of UTI related visits day 0-28

    Time frame: day 0-28

  13. UTI related sick leave

    number of days of UTI related sick leave day 0-28

    Time frame: day 0-28

  14. patients with poor outcome: temperature

    number of patients with temperature \>38°C, day 0-7, according to patients´ statement

    Time frame: day 0-7

  15. patients with poor outcome: worsening symptoms

    number of patients with worsening symptoms (impairment in symptom score)

    Time frame: day 28

  16. patients with poor outcome: prolonged symptoms

    number of patients with prolonged symptoms (\> 7 days), day 0-28. Patients will be followed up until symptom resolution, defined as max. 1 score point on each symptom scale.

    Time frame: day 0-28

  17. pyelonephritis

    number of pyelonephritis day 0-28, according to GP´s diagnosis

    Time frame: day 0-28

  18. AE and SAE

    number of AE and SAE by system organ class day 0-28

    Time frame: day 0-28

  19. patients with at least 1 AE/ 2 AE

    proportion of patients with at least 1 AE/ 2 AE

    Time frame: day 28

  20. symptom burden for urgency

    symptom burden (AUC) for urgency scored daily on a five point scale from 0 "none" to 4 "very strong", from day 0 to day 7

    Time frame: day 0-7

  21. symptom burden for frequency

    symptom burden (AUC) for frequency scored daily on a five point scale from 0 "none" to 4 "very strong", from day 0 to day 7

    Time frame: day 0-7

  22. symptom burden for lower abdominal pain

    symptom burden (AUC) for lower abdominal pain scored daily on a five point scale from 0 "none" to 4 "very strong", from day 0 to day 7

    Time frame: day 0-7

07

Study locations

47 sites
  • Hausarztpraxis Dr. Raby
    Achim, 28832, Germany
  • General Practice Aden
    Braunschweig, Germany
  • General Practice Scheffer
    Braunschweig, Germany
  • General Practice Coutelle
    Bremen, Germany
  • General Practice Schelp
    Bremen, Germany
  • General Practice Dickow
    Burgwedel, Germany
  • General Practice Kiwit-Putzer
    Burgwedel, Germany
  • Praxis Zietz
    Celle, 29221, Germany
  • General Practice Kutzsche
    Emmerthal, Germany
  • Praxis Dr. Bahr
    Gieboldehausen, 37434, Germany
  • General Practice Müller
    Gillersheim, Germany
  • Institute of General Medicine, University Medical Center Goettingen
    Göttingen, 37073, Germany
  • Praxisgemeinschaft Jacob / Kling
    Göttingen, 37083, Germany
  • General Practice Keske
    Göttingen, Germany
  • General Practice Koch
    Göttingen, Germany
  • General Practice Kolb
    Göttingen, Germany
  • General Practice Lang
    Göttingen, Germany
  • General Practice Lückerath
    Göttingen, Germany
  • Praxis Dr. Egner
    Hannover, 30161, Germany
  • Institute of General Medicine, MHH Hannover
    Hannover, 30625, Germany
  • General Practice Barth
    Hannover, Germany
  • General Practice Löber
    Hardegsen, Germany
  • Gemeinschaftspraxis Dres Schlesier / Eckhardt
    Heilbad Heiligenstadt, 37308, Germany
  • Gemeinschaftspraxis Hartleb / Stöcking
    Heilbad Heiligenstadt, 37308, Germany
  • Praxis Dr. Koch
    Heilbad Heiligenstadt, 37308, Germany
  • Praxisgemeinschaft Seitz / Eckert
    Herzberg, 37412, Germany
  • General Practice Wilde
    Hildesheim, Germany
  • Praxisgemeinschaft Stoltz / Raddatz
    Höxter, 37671, Germany
  • General Practice Beverungen
    Höxter, Germany
  • Gemeinschaftspraxis Kasperczyk / Schindewolf-Lensch
    Isernhagen, 30916, Germany
  • General Practice Franz
    Katlenburg-Lindau, Germany
  • Praxis Dr. Ohlendorf
    Langenhagen, 30851, Germany
  • General Practice Ertel
    Langwedel, Germany
  • General Practice Wehrbein
    Lemforde, Germany
  • General Practice Lindenblatt
    Neustadt, Germany
  • Hausarztzentrum Nörten
    Nörten-Hardenberg, 37176, Germany
  • General Practice Preiskorn
    Rehburg-Loccum, Germany
  • General Practice Meier-Ahrens
    Rosdorf, Germany
  • General Practice Woitschek
    Salzgitter, Germany
  • General Practice Beulshausen
    Sattenhausen, Germany
  • General Practice Schulte
    Scheeßel, Germany
  • General Practice Böttcher
    Schwanewede, Germany
  • General Practice Albrecht
    Springe, Germany
  • General Practice Wolf
    Uslar, 37170, Germany
  • General Practice Schmiemann
    Verden, Germany
  • General Practice Annweiler
    Waake, Germany
  • General Practice Stegemann
    Wunstorf, Germany
08

References and documents

Publications

  • Gagyor I, Hummers E, Schmiemann G, Friede T, Pfeiffer S, Afshar K, Bleidorn J. Herbal treatment with uva ursi extract versus fosfomycin in women with uncomplicated urinary tract infection in primary care: a randomized controlled trial. Clin Microbiol Infect. 2021 Oct;27(10):1441-1447. doi: 10.1016/j.cmi.2021.05.032. Epub 2021 Jun 7. PubMed 34111592 ↗
  • Afshar K, Fleischmann N, Schmiemann G, Bleidorn J, Hummers-Pradier E, Friede T, Wegscheider K, Moore M, Gagyor I. Reducing antibiotic use for uncomplicated urinary tract infection in general practice by treatment with uva-ursi (REGATTA) - a double-blind, randomized, controlled comparative effectiveness trial. BMC Complement Altern Med. 2018 Jul 3;18(1):203. doi: 10.1186/s12906-018-2266-x. PubMed 29970072 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 27, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03151603
Lead sponsor
University Medical Center Goettingen
Responsible party
Karsten Gavenis (Quality Assurance Staff Unit Clinical Trials, University Medical Center Goettingen) — Principal investigator
First posted
May 12, 2017
Start date
May 3, 2017
Primary completion
May 19, 2019
Completion
Jun 20, 2019
Last update
Nov 27, 2019

Study contacts

Eva Hummers-Pradier, Prof. Dr.
principal investigator · University Medical Center Göttingen

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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