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Overactive BladderPhase 4NCT02522936

Use of Biotene Moisturizing Mouth Spray for Xerostomia Associated With Oral Oxybutynin Use

A Phase 4 study testing Biotene oral spray in people with Overactive Bladder and Xerostomia, run by University of Southern California.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

This is a randomized placebo controlled trial of the use of Biotene versus no treatment in women receiving oral oxybutynin for overactive bladder. The primary outcome will be rate of discontinuation of oxybutynin at 6 month. Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Overactive Bladder, Xerostomia, Compliance
What is being tested?
Biotene oral spray
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
1 Aug 2018to 30 Dec 2019
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age >18
  • Able to give informed consent
  • Women diagnosed with overactive bladder or urgency incontinence who are being started on oral oxybutynin.

Who cannot join

  • Any allergy to Biotène® Moisturizing Mouth Spray or its components
  • Any contraindication to oxybutynin, including urinary retention (PVR > 100ml), gastric retention and other severe decreased gastrointestinal motility conditions, uncontrolled narrow-angle glaucoma and in patients who are at risk for these conditions, and patients who have demonstrated hypersensitivity to the drug substance or other components of the product.
  • Using ocular anti-cholinergic agents, treatment for dry mouth or oral anti-muscarinics in the preceding 3 months.
  • Prior history of head/neck surgery or radiation (excluding thyroid surgery).

About this study

This is a randomized placebo controlled trial of the use of Biotene versus no treatment in women receiving oral oxybutynin for overactive bladder. The primary outcome will be rate of discontinuation of oxybutynin at 6 month.

Read the detailed description

Overactive bladder (OAB) is a common condition affecting roughly 20% of women. Anticholinergic medications are the main treatment modality for women with OAB; however, treatment is hampered by high rates of dry mouth which limit tolerability. Discontinuation rates for anticholinergic medications for dry mouth have been reported to be as high as 71% at 6 months. Biotène(TM) Moisturizing Mouth Spray is used for xerostomia due to various etiologies in adults.

The purpose of our study is to determine the rate of discontinuation of oral oxybutynin therapy for overactive bladder in women using Biotène(TM) Moisturizing Mouth Spray versus no additional treatment. This is a randomized open label trial. Participants will be randomized to moisturizing mouth spray versus no additional treatment. Urinary symptoms, xerostomia symptoms, and compliance with oral oxybutynin will be compared between groups. Our primary outcome is rate of discontinuation of oral oxybutynin at 6 months.

Assuming a baseline discontinuation rate of 70% at 6 months, and assuming 80% power and α = 0.05 for a two-sided test, we will require 42 subjects in each group to detect a difference of 30% in cure rate between the two groups. Assuming followup of 75%, 60 subjects in each group will be recruited.

Participants within groups will be compared with respect to differences in baseline demographics, questionnaire scores and compliance with oxybutynin using a Chi Square test for categorical variable, a T test for normally distributed continuous variables or a Mann Whitney U test for non-normally distributed or ordinal variables.

Being tested
Biotene oral spray
Medical subject headings
Urinary Bladder, Overactive, Xerostomia, Patient Compliance

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Biotene oral sprayDrug

    Also called Biotene, Mouth spray

    Biotene oral spray will be provided to participants.

Study groups in NCT02522936
Study groupRoleWhat they receive
BioteneExperimentalParticipants will be given Biotene oral spray to use as needed when taking oxybutynin.
Receives: Drug: Biotene oral spray
Routine careNo interventionParticipants will be given routine care.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Discontinuation rate of oxybutynin at 6 month by patient report

    Measured: 6 months

Secondary outcomes (5)
  1. Discontinuation rate of oxybutynin at 6 months based on pill count

    Measured: 6 months

  2. Discontinuation rate of oxybutynin at 3 months as measured by patient report

    Measured: 3 months

  3. Discontinuation rate of oxybutynin at 3 months as measured by pill count

    Measured: 3 months

  4. Symptoms of dry mouth as measured by global xerostomia question

    Measured: 3 months

  5. Number of daily voids as measured by voiding diary

    Measured: 3 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Aug 2015 (estimated)
  2. Study start1 Aug 2018 (estimated)
  3. Primary completion31 Jul 2019 (estimated)
  4. Study completion30 Dec 2019 (estimated)

Why it stopped: Due to lack of funding and necessary personnel we determined that the study could not be done.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Care provider, Investigator, Outcomes assessor
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02522936
Sponsor's protocol ID
HS-14-00800
Status last verified
Jul 2018
First submitted
12 Aug 2015
Last updated
12 Jul 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Versi E, Appell R, Mobley D, Patton W, Saltzstein D. Dry mouth with conventional and controlled-release oxybutynin in urinary incontinence. The Ditropan XL Study Group. Obstet Gynecol. 2000 May;95(5):718-21. doi: 10.1016/s0029-7844(99)00661-4.

    PubMed 10775736
  • Epstein JB, Emerton S, Le ND, Stevenson-Moore P. A double-blind crossover trial of Oral Balance gel and Biotene toothpaste versus placebo in patients with xerostomia following radiation therapy. Oral Oncol. 1999 Mar;35(2):132-7. doi: 10.1016/s1368-8375(98)00109-2.

    PubMed 10435146
  • Nelken RS, Ozel BZ, Leegant AR, Felix JC, Mishell DR Jr. Randomized trial of estradiol vaginal ring versus oral oxybutynin for the treatment of overactive bladder. Menopause. 2011 Sep;18(9):962-6. doi: 10.1097/gme.0b013e3182104977.

    PubMed 21532512
  • Matear DW, Barbaro J. Effectiveness of saliva substitute products in the treatment of dry mouth in the elderly: a pilot study. J R Soc Promot Health. 2005 Jan;125(1):35-41. doi: 10.1177/146642400512500113.

    PubMed 15712851
  • Thomson WM, van der Putten GJ, de Baat C, Ikebe K, Matsuda K, Enoki K, Hopcraft MS, Ling GY. Shortening the xerostomia inventory. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2011 Sep;112(3):322-7. doi: 10.1016/j.tripleo.2011.03.024. Epub 2011 Jul 16.

    PubMed 21684773

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Biotene oral spray in people with Overactive Bladder and Xerostomia, run by University of Southern California.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 12 Jul 2018. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Discontinuation rate of oxybutynin at 6 month by patient report (time frame: 6 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02522936, which also lists 5 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Jul 2018.

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