Persistence rate with medical treatment in patients with idiopathic or neurogenic overactive bladder

ISRCTN ISRCTN13129226
DOI https://doi.org/10.1186/ISRCTN13129226
Secondary identifying numbers MEC-2009-094
Submission date
03/03/2017
Registration date
17/03/2017
Last edited
18/04/2017
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

Plain English Summary

Background and study aims
An overactive bladder is where a person regularly gets a sudden and compelling need or desire to pass urine. Many people suffer from overactive bladder. Most of these patients are treated first with anticholinergic drugs. Many of these patients are not taking these drugs after one year. The aim of this study is to find out whether patients continue to use the anticholinergic solifenacin after one year and the reason when they stop.

Who can participate?
Patients aged over 18 with overactive bladder who have been prescribed solifenacin

What does the study involve?
Participants receive the same medication as they normally would, and are contacted by telephone at 1, 3, 6 and 12 months after starting solifenacin. They are asked whether they are still taking the medication, about possible side effects, and if they have stopped taking the medication, what are their reasons for stopping.

What are the possible benefits and risk of participating?
Participants receive feedback about their use of solifenacin, and the information could be used to improve the future use of the medication. There are no risks involved.

Where is the study run from?
Erasmus Medical Center (Netherlands)

When is the study starting and how long is it expected to run for?
June 2009 to July 2013

Who is funding the study?
Erasmus Medical Center (Netherlands)

Who is the main contact?
Dr Bertil Blok

Contact information

Dr Bertil Blok
Scientific

's-Gravendijkwal 230
Room Ba-204
Rotterdam
3015 CE
Netherlands

ORCiD logoORCID ID 0000-0001-9354-7395

Study information

Study designProspective cohort study
Primary study designObservational
Secondary study designCohort study
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format. A paper version of the patient information sheet is available in Dutch upon request. Please use the contact details below
Scientific titleReal life persistence rate with antimuscarinic treatment in patients with idiopathic or neurogenic overactive bladder: a prospective cohort study with solifenacin
Study hypothesisTo investigate the persistence rate in real life among patients with idiopathic or neurogenic overactive bladder (OAB) who were prescribed solifenacin.
Ethics approval(s)Erasmus Medical Center Ethics Committee, 09/04/2009, ref: MEC-2009-094
ConditionOveractive bladder
InterventionAfter giving informed consent, patients older than 18 years and newly prescribed solifenacin because of complaints of idiopathic or neurogenic OAB, were included. Patients who had used anticholinergic drugs less than 7 days before they started solifenacin were excluded. The starting dose was chosen by the doctor who prescribed the solifenacin but could be adjusted during the study period. Participants were allowed to continue possible other urologic medications, for example alfa-blockers, but not other anticholinergic drugs. Telephone surveys were taken at 1, 3, 6 and 12 months after starting solifenacin. The patients were asked whether they were continuing the medication. They were also interviewed about possible side effects and if they had discontinued the therapy, what had been reasons for stopping.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Solifenacin
Primary outcome measurePersistence of usage, measured by telephone surveys at 1, 3, 6 and 12 months
Secondary outcome measuresReasons for stopping medication, measured by telephone surveys at 1, 3, 6 and 12 months
Overall study start date01/06/2009
Overall study end date01/07/2013

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants123
Participant inclusion criteria1. Patients older than 18 years
2. Idiopathic or neurogenic overactive bladder
3. Newly prescribed solifenacin
Participant exclusion criteria1. Patients not on solifenacin
2. Patients who had used anticholinergic drugs less than 7 days before they started solifenacin
Recruitment start date01/06/2009
Recruitment end date01/07/2012

Locations

Countries of recruitment

  • Netherlands

Study participating centre

Erasmus Medical Center
Rotterdam
3015 CE
Netherlands

Sponsor information

Erasmus Medical Center
Hospital/treatment centre

's-Gravendijkwal 230
Rotterdam
3015 CE
Netherlands

Phone +31 (0)107 040 704
Email research@erasmusmc.nl
ROR logo "ROR" https://ror.org/018906e22

Funders

Funder type

Hospital/treatment centre

Erasmus Medisch Centrum
Government organisation / Universities (academic only)
Alternative name(s)
Erasmus Medical Center, Erasmus MC, Erasmus Universitair Medisch Centrum, Erasmus University Medical Center, Universitair Medisch Centrum Rotterdam, Erasmus Universitair Medisch Centrum Rotterdam, EMC
Location
Netherlands

Results and Publications

Intention to publish date01/07/2017
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planThe study has been submitted for publication
IPD sharing planThe datasets generated during and/or analysed during the current study are/will be available upon request from Marloes Tijnagel (mtijn@hotmail.com)

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Basic results 16/03/2017 20/03/2017 No No
Results article results 13/04/2017 Yes No

Additional files

ISRCTN13129226_BasicResults_16Mar17.docx
Uploaded 20/03/2017

Editorial Notes

18/04/2017: Publication reference added.
20/03/2017: The basic results of this trial have been uploaded as an additional file.