A randomised, double-blind validation of the significance of occult pyuria for the symptoms of the overactive bladder

ISRCTN ISRCTN20127069
DOI https://doi.org/10.1186/ISRCTN20127069
Secondary identifying numbers OAB/AB/07
Submission date
04/06/2007
Registration date
21/08/2007
Last edited
07/06/2017
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Urological and Genital Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Not provided at time of registration

Contact information

Prof James Malone-Lee
Scientific

Department of Medicine
Clerkenwell Building
Archway Campus
Highgate Hill
London
N19 5LW
United Kingdom

Study information

Study designRandomised placebo-controlled double-blind trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details to request a patient information sheet
Scientific titleA randomised, double-blind validation of the significance of occult pyuria for the symptoms of the overactive bladder
Study acronymNOD (Nitrofurantoin in Overactive Detrusor)
Study objectivesStudy hypothesis amended as of 11/09/2007:
The aim of this study is to determine whether treatment with nitrofurantoin improves total 24 hour incontinence episodes in patients presenting with symptoms of overactive bladder, who have significant numbers of inflammatory cells in their urine but a negative urine culture.

Study hypothesis provided at time of registration:
The aim of this study is to determine whether treatment with pivmecillinam improves total 24 hour incontinence episodes in patients presenting with symptoms of overactive bladder, who have significant numbers of inflammatory cells in their urine but a negative urine culture.
Ethics approval(s)Whittington and Moorfields Research Ethics Committee, 07/05/2008, ref: 08/H0721/23
Health condition(s) or problem(s) studiedOveractive bladder
InterventionInterventions amended as of 23/11/2007:
Intervention group: Nitrofurantoin (Brand Name: Macrodantin®) 100 mg orally b.d (twice daily) for 6 weeks
Control group: Placebo administered orally, twice daily for 6 weeks

Please note that this change is due to difficulty in finding suitable placebo for the pivmecillinam preparation.

Interventions provided at time of registration:
Intervention group: Pivmecillinam will be administered orally at a dose of 400 mg twice daily
Control group: Placebo administered orally, twice daily
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Nitrofurantoin
Primary outcome measureNumber of incontinence episodes per 24 hours, assessed by bladder diary chart recorded by the patients during the intervention
Secondary outcome measuresSecondary outcome measure amended as of 11/09/2007:
1. To determine whether treatment with nitrofurantoin improves other symptoms of over active bladder, the following will be assessed:
1.1. 24-urinary frequency
1.2. Urgency score assessed at 2 weekly intervals until the end of the trial at 6 weeks
1.3. Average voided volume assessed at 2 weekly intervals until the end of the trial at 6 weeks
1.4. Quality of life (I-Qol) assessed at 2 weekly intervals until the end of the trial at 6 weeks
2. Assessment to determine whether pus cells are eliminated from the urine, <10 WBC/uL, after long-term treatment with nitrofurantoin. This will be measured at 2 weekly intervals until the end of the trial at 6 weeks
3. Recording side effects of treatment

Secondary outcome measures provided at time of registration:
1. To determine whether treatment with Pivmecillinam improves other symptoms of over active bladder, the following will be assessed:
1.1. 24-urinary frequency
1.2. Urgency score assessed at 2 weekly intervals until the end of the trial at 6 weeks
1.3. Average voided volume assessed at 2 weekly intervals until the end of the trial at 6 weeks
1.4. Quality of life (I-Qol) assessed at 2 weekly intervals until the end of the trial at 6 weeks
2. Assessment to determine whether pus cells are eliminated from the urine, <10 WBC/uL, after long-term treatment with Pivmecillinam. This will be measured at 2 weekly intervals until the end of the trial at 6 weeks
3. Recording side effects of treatment
Overall study start date01/10/2007
Completion date01/10/2008

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants30 in each arm
Key inclusion criteria1. Adults aged 18 years or older
2. Both males and females
3. Symptoms of frequency more than or equal to 8 per day; urgency with or without urge incontinence
4. Able to complete a bladder diary chart for at least three days in one week
5. Able to complete a symptom questionnaire
Key exclusion criteria1. Age less than 18 years
2. Inability to consent
3. Bactiuria of >105 Colony Forming Unit (CFU) /ml identified by conventional Midstream Urine Specimen (MSU) culture
4. Negative urine microscopy identified by <10 White Blood Cells (WBC)/uL on a fresh, unspun sample of urine
Date of first enrolment01/10/2007
Date of final enrolment01/10/2008

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Archway Campus
London
N19 5LW
United Kingdom

Sponsor information

The Whittington Hospital NHS Trust (UK)
Hospital/treatment centre

Magdala Avenue
Highgate Hill
London
N19 5LW
England
United Kingdom

Phone +44 (0)207 288 5269
Email james.malone-lee@ucl.ac.uk
ROR logo "ROR" https://ror.org/01ckbq028

Funders

Funder type

Hospital/treatment centre

The Whittington Hospital NHS Trust (UK)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Editorial Notes

07/06/2017: No publications found, verifying study status with principal investigator.