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HypersalivationNCT00381589

Treatment of Clozapine-Induced Hypersalivation Ipratropium Bromide

A study testing ipratropium bromide 0.03% spray in people with Hypersalivation, run by Centre for Addiction and Mental Health at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Hypersalivation (Too much saliva) and drooling is a side effect experienced by 31% of people taking the antipsychotic clozapine. This study aims to determine if using the medication ipratropium bromide(IPB)at bedtime will reduce the amount of salivation and the distress people may feel. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hypersalivation
What is being tested?
ipratropium bromide 0.03% spray
Could I receive a placebo?
No, everyone receives an active treatment
How many people
25 participants
Where
1 siteCanada
Study dates
Oct 2006to Jun 2008
Phase
Interventional
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
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of schizophrenia or schizoaffective disorder as per DSM IV-TR criteria
  • Receiving clozapine for at least 2 months
  • No change in their clozapine dose for at least 2 weeks
  • Have a Clinical Global Impression scale score for hypersalivation of greater than or equal to 4
  • Have the capacity to provide voluntary, informed consent
  • Able to speak English
  • Have a minimum score of 2 on the TNHS prior to study entry
  • No change in medications for at least 2 weeks

Who cannot join

  • Subjects with co-morbid medical conditions that could influence hypersalivation (e.g. Idiopathic Parkinson's Disease)
  • Subjects currently receiving ipratropium bromide for the treatment of hypersalivation or other medical conditions
  • History of narrow-angle glaucoma, prostatic hyperplasia or bladder neck obstruction
  • History of an allergic reaction to ipratropium bromide

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Centre for Addiction and Mental Health

    Toronto, Ontario, M5T 1R8

Other trials in Canada

About this study

Hypersalivation (Too much saliva) and drooling is a side effect experienced by 31% of people taking the antipsychotic clozapine. This study aims to determine if using the medication ipratropium bromide(IPB)at bedtime will reduce the amount of salivation and the distress people may feel.

Read the detailed description

With the recent questions regarding the effectiveness of newer atypical antipsychotic medications in treating schizophrenia, clozapine continues to remain the gold standard for treatment-refractory schizophrenia. However, treatment with clozapine continues to be limited by its many side effects. The second most common side effect, occurring in 31% of clozapine treated patients, is hypersalivation or sialorrhea. Sialorrhea can be profoundly stigmatizing and functionally disabling in certain patients, and may increase discontinuation rates in this high-risk patient population. Several studies have evaluated the efficacy of anticholinergic agents mainly in small, uncontrolled studies or anecdotal reports and are often complicated by difficulties in medication administration and systemic side effects. Open label and case series studies have demonstrated promising results with ipratropium bromide (IPB) treatment of clozapine-induced hypersalivation, acting on anticholinergic receptors with minimal systemic absorption. However, no randomized controlled trials have evaluated IPB in the treatment of this problematic side effect.The primary goals of this study is to determine the efficacy of ipratropium bromide in reducing clozapine-induced hypersalivation, as per the Toronto Nocturnal Hypersalivation Scale, which is a modified hypersalivation scale incorporating the Drooling Severity Scale and the Nocturnal Hypersalivation Rating Scale, and reduced measurements on visual analogue scales for hypersalivation distress and severity. Our hypothesis that Ipratropium bromide use at bedtime will result in a significant reduction in nocturnal clozapine-induced hypersalivation as measured by the Toronto Nocturnal Hypersalivation Scale (TNHS) through its local anticholinergic activity.

Conditions
Hypersalivation
Being tested
ipratropium bromide 0.03% spray
Keywords
clozapine-induced hypersalivation
Medical subject headings
Sialorrhea

What participants receive

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

  • ipratropium bromide 0.03% sprayDrug

Study groups in NCT00381589
Study groupRoleWhat they receive
AExperimentalRandom assignment to investigational spray
Receives: Drug: ipratropium bromide 0.03% spray

What is being measured

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

  1. Toronto Nocturnal Hypersalivation Scale scores

    Measured: intermittent

  2. Visual Analogue Scale - Severity

    Measured: intermittent

  3. Visual Analogue Scale - Distress

    Measured: Intermittent

  4. Simpson-Angus Rating Scale

    Measured: Each study visit

  5. Clinical Global Improvement Scale

    Measured: Each study visit

Timeline

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

  1. First posted28 Sep 2006 (estimated)
  2. Study startOct 2006
  3. Primary completionJun 2008

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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
25 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00381589
Sponsor's protocol ID
150/2006
Status last verified
Feb 2009
First submitted
26 Sep 2006
Last updated
12 Feb 2009
Results posted
No
Data monitoring committee
No

Publications

  • Sockalingam S, Shammi C, Remington G. Treatment of clozapine-induced hypersalivation with ipratropium bromide: a randomized, double-blind, placebo-controlled crossover study. J Clin Psychiatry. 2009 Aug;70(8):1114-9. doi: 10.4088/JCP.08m04495.

    PubMed 19758522

Questions about this trial

What is this clinical trial studying?

A study testing ipratropium bromide 0.03% spray in people with Hypersalivation, run by Centre for Addiction and Mental Health at 1 site in Canada.

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 8 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: finished, as of the sponsor's last update on 12 Feb 2009. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

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.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Toronto Nocturnal Hypersalivation Scale scores (time frame: intermittent). The study lists 5 primary outcomes in all. 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 NCT00381589, which also lists 1 linked publication.

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 Feb 2009.

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