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Double-blind, clinical trial investigating the effects of ipratropium spray versus placebo spray in children with sialorrhea
Excess drooling, or sialorrhea, is a chronic problem seen in pediatric patients with oral-motor dysfunction or neurodevelopmental abnormalities. Despite significant social and physical detriment from sialorrhea, an effective and safe treatment remains elusive.
The investigator's objective is to study the effect of sublingual ipratropium (an anticholinergic aerosol spray) on sialorrhea in the pediatric population
Method: A double-blind, randomized, placebo-controlled cross-over trial of sublingual ipratropium bromide application in pediatric patients with inappropriate drooling. Patients are recruited from the sialorrhea clinic and informed consent is obtained. Patients are randomized to receive ipratropium bromide, 1- 2 metered doses (sprays) of active drug (21 micrograms per metered dose) or matching placebo, every 6 hours up to a maximum of 4 times per day, in a double-blind, cross-over design using randomization tables. Total treatment length is two weeks for each limb of the study with a 2 week washout period. The primary outcome measure is the reporting of sialorrhea using a validated scales. Secondary outcome includes global assessment of treatment, patient satisfaction, and adverse effects.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Intervention | Experimental | ipratropium bromide administered via metered dose spray (21 micrograms per spray). 1-2 spray sublingual or to buccal mucosa every 6 hours up to 4 times a day |
|
| Placebo | Placebo Comparator | normal saline administered via metered dose spray. 1-2 spray sublingual or to buccal mucosa every 6 hours up to 4 times a day |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Ipratropium bromide | Drug | ipratropium bromide via metered dose spray (21 micrograms per spray) |
|
| Measure | Description | Time Frame |
|---|---|---|
| Change in Drooling Severity and Frequency Scale | Also referred to as the Thomas Stonell and Greenberg scale. This is a validated tool using patient reported scores for drooling severity and frequency. Drooling severity is scored on a scale with minimum value of 1 and maximum value of 5. A higher value represents a worse outcome. The frequency is scored on a scale with minimum value of 1 and maximum value of 4. A higher value represents a worse outcome. The subscales (severity and frequency) can be interpreted independently or combined through addition to compute a total score. | Change from baseline sialorrhea at 2 weeks following each treatment arm |
| Change in Drooling impact scale | The drooling impact scale is a validated self-administered questionnaire used to measure saliva-control in children. The scale consists of 10 questions/subscales, each with a minimum score of 1 and a maximum score of 10. For all subscales, the higher value represents a worse outcome. The total score is reported and is calculated by adding the score of all 10 subscales. | Change from baseline sialorrhea at 2 weeks following each treatment arm |
| Measure | Description | Time Frame |
|---|---|---|
| Patient Global Impression of Improvement Scale | The Patient Global Impression of improvement scale is a single 7-point scale that requires the patient/caregiver to assess how much the illness has improved or worsened relative to a baseline state at the beginning of the intervention. The minimum score is 1 and the maximum score is 7. A higher value represents a worse outcome. To be collected through patient booklet |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Julie Strychowsky, MD | Contact | 519 685 8500 | 58242 | julie.strychowsky@lhsc.on.ca |
| Agnieszka Dzioba, PhD | Contact | Agnieszka.Dzioba@lhsc.on.ca |
| Name | Affiliation | Role |
|---|---|---|
| Julie Strychowsky, MD | London Health Science Centre | Principal Investigator |
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| ID | Term |
|---|---|
| D012798 | Sialorrhea |
| ID | Term |
|---|---|
| D012466 | Salivary Gland Diseases |
| D009059 | Mouth Diseases |
| D009057 | Stomatognathic Diseases |
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| ID | Term |
|---|---|
| D009241 | Ipratropium |
| ID | Term |
|---|---|
| D001286 | Atropine Derivatives |
| D014326 | Tropanes |
| D053961 | Azabicyclo Compounds |
| D001372 | Aza Compounds |
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Study drug will be dispensed as a metered-dose spray bottle of ipratropium bromide or identical placebo prepared by the Hospital Pharmacy. Clinician, investigator, care provider, as well as outcome assessor will be blinded to the treatment.
| Placebo | Other | normal saline delivered via metered dose spray |
|
| At start of trial and weekly self recording up to 8 weeks |
| Adverse effect | Documentation of all adverse effects encountered during study period | Intermittent up to 8 weeks |
| Patient feedback | Open ended patient comment related to the intervention. To be collected through patient booklet | Weekly self recording up to 8 weeks. |
| D009930 |
| Organic Chemicals |
| D001533 | Belladonna Alkaloids |
| D012991 | Solanaceous Alkaloids |
| D000470 | Alkaloids |
| D006571 | Heterocyclic Compounds |
| D019086 | Bridged Bicyclo Compounds, Heterocyclic |
| D006572 | Heterocyclic Compounds, Bridged-Ring |