NCT01978002

Brief Summary

Bladder pain and discomfort, as well as urinary urgency and frequency, are bothersome symptoms seen frequently in the general population. Clinical diagnostic terms used to describe these symptoms include interstitial cystitis (IC), bladder pain syndrome (BPS), chronic prostatitis, and overactive bladder (OAB), but there is tremendous overlap between these entities, and the distinction between them is based more on eminence than evidence. Pain and/or sensory sensitivity has been suspected to play a role in the pathogenesis of both bladder pain and urinary urgency/frequency. However, no previous studies have investigated whether entities such as IC/BPS and OAB might merely represent different points in a continuum of bladder sensory sensitivity. Moreover, we know of no studies that have directly compared sensory sensitivity in the bladder to global (i.e. CNS-mediated) sensory sensitivity. In the study, a team of investigators with complementary expertise will perform a population-based study assessing bladder and overall sensory sensitivity, in a cohort of women representative of the population with respect to the entire continuum of bladder pain (from none to severe), and symptoms of urgency/frequency. These individuals will undergo urodynamics to measure sensory sensitivity in the bladder, as well as pressure pain and auditory loudness thresholds. The Specific Aims are to demonstrate: 1) sensory sensitivity in the bladder is related to sensory sensitivity elsewhere in the body, suggesting a CNS-driven mechanism, and 2) individuals in the population with greater global sensory sensitivity will display: a) more bladder pain, b) more urgency/frequency, and c) other symptoms of centrally-mediated pain states, such as pain in regions other than the bladder, fatigue, and insomnia.

Trial Health

80
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
26

participants targeted

Target at below P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2011

Completed
2 years until next milestone

First Submitted

Initial submission to the registry

October 25, 2013

Completed
13 days until next milestone

First Posted

Study publicly available on registry

November 7, 2013

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2014

Completed
Last Updated

April 13, 2016

Status Verified

April 1, 2016

Enrollment Period

2.8 years

First QC Date

October 25, 2013

Last Update Submit

April 11, 2016

Conditions

Outcome Measures

Primary Outcomes (2)

  • Urodynamics

    Sensation, desire to void, strong desire to void, and maximum cystometric capacity

    1 year

  • Auditory Sensory Sensitivity

    Sensitivity for loudness threshold will be performed using pure tone acoustic stimuli at an octave frequency of 2000 Hz and signal range from 40 to 100 dB

    1 year

Study Arms (2)

Group 1 (Clinic Patients)

Women who have documented urinary status from surveys completed.

Behavioral: Pain sensitivity testing

Group 2 (Community Sample)

Women who have a clinical diagnosis of IC/BPS or OAB, and who have undergone urodynamic testing within the preceding 6 months as part of their routine clinical care.

Behavioral: Pain sensitivity testingBehavioral: Urodynamic testing

Interventions

Group 1 (Clinic Patients)Group 2 (Community Sample)
Group 2 (Community Sample)

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Group 1 will be women with a clinical diagnosis of IC/BPS or OAB, at least 18 years of age, who have had urodynamic testing performed within the preceding 6 months. All of these subjects will complete the questionnaires, mechanical sensitivity testing, and auditory sensitivity testing Group 2 will be women recruited from the community sample, at least 18 years of age. All of these subjects will complete the questionnaires, mechanical sensitivity testing, and auditory sensitivity testing. Half of the subjects (n=30) will also undergo urodynamic testing to measure bladder sensitivity.

You may qualify if:

  • At least 18 years old

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Michigan

Ann Arbor, Michigan, 48109, United States

Location

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

October 25, 2013

First Posted

November 7, 2013

Study Start

November 1, 2011

Primary Completion

August 1, 2014

Last Updated

April 13, 2016

Record last verified: 2016-04

Locations