ClinicalTrials.gg
CompletedNCT02251054OABUpdated Sep 26, 2014

Virtual Avatar Coaches for Behavioral Therapy of Patients With Overactive Bladder

An interventional study of Avatar group and No Avatar group in Overactive Bladder, sponsored by Miami VA Healthcare System. Completed at 1 site in United States. Open to female participants aged 55 Years and older. Per ClinicalTrials.gov, last updated 2014-09-26.

Sponsored by Miami VA Healthcare System · Not applicable and Interventional

Phase
Not applicable
Study type
Interventional
Enrollment
47
Allocation
Randomized
Ages
55 Years and older
Sex
Female
01

Study summary

This study compares the efficacy of embedding avatars into an online self-management program that teaches OAB behavioral therapy on OAB-related quality of life, symptoms, self-efficacy, and adherence versus the same program without avatars

02

Conditions studied

  • Overactive Bladder

Keywords

  • Overactive Bladder
  • Multimedia
  • Behavioral Therapy
03

In context

Urinary Bladder, Overactive

864 studies on the registry are indexed under Urinary Bladder, Overactive; 125 are open to participants now.

This study's enrollment of 47 is below the median of 70 across 660 interventional studies indexed under Urinary Bladder, Overactive.

Browse Urinary Bladder, Overactive studies →

Lead sponsor

Miami VA Healthcare System is the lead sponsor of 11 studies on the registry; 1 is open to participants now.

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

04

Who can participate

Ages eligible
55 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • age 55 or older
  • women living in the community
  • who could read and speak English
  • urgency (≥3 episodes/24 hrs.) ± urge urinary incontinence
  • urinary frequency (≥8 times/24 hrs.)
  • nocturia (awakening ≥2 times at night)

Exclusion criteria

Exclusion Criteria:

  • hematuria
  • abdominal pain
  • fever
  • cognitive impairment (Mini-Cog \< 3)
  • positive screen for depression (PHQ2 > 3)
  • hearing issues
  • uncorrected visual difficulties
05

Study design

Phase
Not applicable
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
47 participants (actual)

Study arms

  • Experimental
    Avatar group

    Intervention group viewed two avatar coaches: a generic avatar coach (GAC) and a self-avatar, "peer" mentor (SAP).

    Other: Avatar group

  • Active comparator
    No Avatar group

    The control group version (voice only) observed the identical program, including introductions, question asking, narration of animations, delivery of key points, and summary of each section with identical pre-recorded voices without the avatars.

    Other: No Avatar group

Interventions

  • OtherAvatar group

    We developed and tested the online program of three multimedia tutorials using the game development and rendering engine (Unity3D, Unity Technologies, San Francisco, CA). This arm saw the tutorials with Avatars.

  • OtherNo Avatar group

    We developed and tested the online program of three multimedia tutorials using the game development and rendering engine (Unity3D, Unity Technologies, San Francisco, CA). This arm saw the tutorials without Avatars.

06

What researchers measure

Primary outcomes

  1. Overactive bladder- health related quality of life (OAB HRQOL)

    The OAB-q is a 33-item measure to assess impact of OAB symptoms on HRQOL. The OAB-q consists of a symptom bother scale and four HRQOL subscales (coping, concern, sleep, and social interaction). All scale scores are transformed to a 0-to-100-point scale, with higher symptom bother scores indicating greater symptom severity, and lower total and subscale scores indicating improvement in HRQOL.27 A 10-point change in these scales indicates a minimal clinically important difference (MCID). The Cronbach alpha coefficient in this study was 0.88.

    Time frame: Baseline and at one, six, and 12 weeks

Secondary outcomes

  1. Perception of Bladder Condition (PPBC)

    The PPBC is a single-item, six-point rating scale of participants subjective assessment of their bladder symptoms, with the question "My bladder causes…" me no (1), very minor (2), minor (3), moderate (4), severe (5), or many severe (6) problems. A two-point negative change indicates an MCID.28

    Time frame: Baseline and at one, six, and 12 weeks

  2. Overactive bladder symptoms

    Participants completed daily bladder diaries data for 12 weeks with information on date, beverage, quantity and time of fluid intake, voiding frequency, voiding volume quantified, urge-related episodes with or without urinary incontinence, and the circumstances of each episode. At each visit, research associates would review bladder diaries to ensure that entries were clear and interpretable. A research associate, blinded to group assignment, scored bladder diaries and managed the data.

    Time frame: 12 weeks duration

  3. Geriatric Self-Efficacy Index for Urinary Incontinence (GSEI)

    The GSEI measures older adults' level of confidence in preventing incontinence episodes. Total scores for the GSEI were computed by summing the scores from each of the 16 items (minimum 0, maximum 10 points per item, range 0-160); a minimum 20-point difference suggests an MCID. The Cronbach alpha coefficient in this study was 0.91.29 We also asked participants at baseline and at one, six, and 12 weeks to describe their confidence in doing pelvic floor muscle exercises: "How confident are you in doing pelvic floor muscle exercises?" and their ability to suppress urge: "How confident are you in suppressing the urge?" on a 100 mm visual analog scales (VAS). The 100 mm VAS was in the range of 0, "not at all confident" to 10, "extremely confident."

    Time frame: Baseline and at one, six, and 12 weeks

  4. Adherence to Pelvic Floor Muscle Exercises (PFMEs)

    Participants were asked how often they had performed PFME in the previous week (0=do not perform, 1=once a week, 2=twice a week once a day, 3=twice a week more than once a day, 4=alternate days once a day, 5= alternate day more than once, 6=every day of the week once a day, 7=every day of the week more than once a day). We also asked about the number of repetitions they did during each exercise session (0=1-2 times, 1=2-4 times, 3=4-6 times, 4=6-8 times, 5=8-10 times, 6=more than 10 times).

    Time frame: Baseline and at one, six, and 12 weeks

  5. Avatar Recognition

    The research associate asked participants if they recognized the face of the avatars in the tutorials at 12 weeks with a single question: "Who did the avatar look like?"

    Time frame: At 12 weeks

07

Study locations

1 site
  • Miami VA Healthcare System
    Miami, Florida 33125, United States
08

References and documents

Publications

  • Andrade AD, Anam R, Karanam C, Downey P, Ruiz JG. An overactive bladder online self-management program with embedded avatars: a randomized controlled trial of efficacy. Urology. 2015 Mar;85(3):561-7. doi: 10.1016/j.urology.2014.11.017. Epub 2015 Jan 10. PubMed 25586473 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 26, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02251054
Lead sponsor
Miami VA Healthcare System
Collaborators
Pfizer
Responsible party
Allen D. Andrade (Staff physician, Miami VA Healthcare System) — Principal investigator
First posted
Sep 26, 2014
Start date
Oct 2012
Primary completion
Jul 2013
Completion
Oct 2013
Last update
Sep 26, 2014

Study contacts

Allen D Andrade, MD
principal investigator · Miami VAHS

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Sep 2014. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion