- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03682081
Interventions for Patients With Alzheimer's Disease and Dysphagia
Impact of Novel Rehabilitative Approaches for Dysphagia in Patients With Alzheimer's Disease and Related Dementias
Study Overview
Status
Conditions
Detailed Description
This proposal consists of a small, randomized clinical trial to determine the impact of two novel interventions on swallowing-related outcomes in patients with mild-moderate Alzheimer's Disease and Related Dementias (ADRD) and identify subgroups of patients most likely to benefit from these interventions. Patient-caregiver dyads will be randomized to lingual strengthening, saliva substitute use, a combination of the two, or only usual care. Saliva and swallowing-related outcomes will be collected at baseline and following the 8 week intervention period.
Consent and Randomization: Eligible dyads will be approached, consented and randomized at clinical care sites within University of Wisconsin Hospital and Clinics. Eligible participants' capacity to consent will determined by their primary clinical provider or team. Research staff will consent participant (or legally authorized representatives) prior to their swallow study. Each dyad will have equal chances of randomization to either usual care or one of the intervention arms plus usual care, with randomization stratified by the participant's dementia severity determined by the Clinical Dementia Rating (CDR) scale to ensure equal distribution of mild and moderate patients.
Baseline Assessment: Following randomization, the baseline assessment will be completed in tandem with the outpatient clinic visit. Staff will collect data on sociodemographics, comorbidities (using the Charlson comorbidity score approach) and medications (including anticholinergics and neuroleptics). The Montreal Cognitive Assessment (MoCA) will be administered at this time. Oral health status will be graded using the Brief Oral Health Status Examination, a valid and reliable scoring instrument developed for non-dental health care providers in long term care. Dentition will be characterized by the number of posterior occlusal pairs of teeth and denture use. Smoking history and active use during the study will be recorded.
Usual Care: Usual care group participants will receive standard swallowing interventions as recommended by the clinical Speech-Language Pathologist. Such treatment would likely consist of dietary (e.g., thickened liquids or pureed foods) or postural compensatory strategies (e.g., chin down posture while swallowing). All patient participants in intervention groups will also receive usual care, as indicated per their primary clinical team.
Interventions:
Saliva substitute: Each patient-caregiver dyad will be provided with a commercially available gel-based saliva substitute, Biotene® Oral Balance Gel. Participants will be instructed to apply an amount equivalent to about 1 cm of gel with a finger to the tongue and most intensely affected areas of the oral cavity three times a day for 8 weeks. Caregivers will be trained in how to assist the patient with application and support will be provided through follow-up phone calls.
Lingual strengthening intervention: Device training for dyads assigned to lingual strengthening will occur following randomization during the research visit. Isometric tongue strengthening will be completed using the Iowa Oral Performance Instrument (IOPI) over an 8-week program. An air-filled pressure bulb is placed on the surface of the oral tongue and pressed against the hard palate during exercise. Each patient is given a target pressure value to aim for as determined by the baseline one repetition maximum (1RM) lingual pressures. During week one of the regimen, the target value of each repetition will be 60% of the 1RM. For the remaining seven weeks, the target value will be increased to 80% of the 1RM. At weeks three, five, and seven, the baseline will be re-measured by phone and the 80% target value re-calculated. The final assessment point will be after completion of lingual strengthening. Training will be provided to both participants and caregivers on the device and lingual strengthening protocol and support will be provided to dyads through follow-up phone calls.
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Sara Gustafson, MS, CCC-SLP
- Phone Number: 608-262-9995
- Email: segustafson@wisc.edu
Study Contact Backup
- Name: Meredith Mackowicz-Torres, MS, CCC-SLP
- Phone Number: 608-262-9995
- Email: mackowicz@wisc.edu
Study Locations
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Wisconsin
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Madison, Wisconsin, United States, 53705
- Recruiting
- University of Wisconsin-Madison
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Contact:
- Sara Gustafson, MS, CCC-SLP
- Phone Number: 608-262-9995
- Email: segustafson@wisc.edu
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Principal Investigator:
- Nicole Rogus-Pulia, PhD, CCC-SLP
-
Contact:
- Meredith Mackowicz-Torres, CCC-SLP
- Phone Number: 608-262-9995
- Email: mackowicz@wisc.edu
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion criteria (patients):
- Age 50-99
- English speaking
- Diagnosis of dementia or cognitive impairment or memory loss
- Clinical Dementia Rating (CDR) scale score between 0.5 and 2.0
- Actively involved caregiver
- Resides at home, assisted living facility, or long-term care facility
Inclusion criteria (caregivers)
- English speaking
- Age 18 and older
- Contact with patient at least 1 time a week
- Has access to a working telephone
Exclusion criteria (patients):
- Dementia due to cerebrovascular disease as primary cause
- History of head and neck cancer or other structural deformity that can affect swallowing
- Allergy to barium
- Currently breastfeed or pregnant or planning to become pregnant
Exclusion criteria (caregivers):
- Lacks ability to give consent
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Factorial Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
No Intervention: Usual care
Usual care groups will receive standard swallowing interventions identified by the Speech-Language Pathologist as appropriate to treat the patient's dysphagia and common in clinical practice.
Such treatment would likely consist of dietary (e.g., thickened liquids or pureed foods) or postural compensatory strategies (e.g., chin down posture while swallowing).
No progressive lingual strengthening approaches or regimented salivary substitute protocols are utilized.
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Experimental: Saliva Substitute Intervention
Each patient-caregiver dyad will be provided with a commercially available gel-based saliva substitute, Biotene® Oral Balance Gel that will be applied to the oral cavity regularly for 8 weeks.
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Participants will be instructed to apply an amount equivalent to about 1 cm of Biotene® Oral Balance Gel with a finger to the tongue and most intensely affected areas of the oral cavity three times a day after brushing their teeth for 8 weeks.
Other Names:
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Experimental: Lingual Strengthening Intervention
Patient-caregiver dyads will be trained in the lingual strengthening protocol and patients will undergo this intervention for 8 weeks.
Isometric tongue strengthening will be facilitated by the Iowa Oral Performance Instrument (IOPI) device.
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An air-filled pressure bulb is placed on the surface of the oral tongue and pressed against the hard palate during exercise.
Each patient is given a target pressure value to aim for as determined by the baseline one repetition maximum (1RM) lingual pressures.
During week one of the regimen, the target value of each repetition will be 60% of the 1RM.
For the remaining seven weeks, the target value will be increased to 80% of the 1RM.
At weeks three, five, and seven, the baseline will be re-measured by phone and the 80% target value re-calculated.
Other Names:
|
Experimental: Saliva Substitute and Lingual Strengthening Intervention
Each patient-caregiver dyad will be provided with a commercially available gel-based saliva substitute, Biotene® Oral Balance Gel that will be applied regularly to the oral cavity for 8 weeks.
Each dyad will also be trained in the lingual strengthening protocol and will undergo this intervention for 8 weeks.
Isometric tongue strengthening will be facilitated by the Iowa Oral Performance Instrument (IOPI) device.
|
Participants will be instructed to apply an amount equivalent to about 1 cm of Biotene® Oral Balance Gel with a finger to the tongue and most intensely affected areas of the oral cavity three times a day after brushing their teeth for 8 weeks.
Other Names:
An air-filled pressure bulb is placed on the surface of the oral tongue and pressed against the hard palate during exercise.
Each patient is given a target pressure value to aim for as determined by the baseline one repetition maximum (1RM) lingual pressures.
During week one of the regimen, the target value of each repetition will be 60% of the 1RM.
For the remaining seven weeks, the target value will be increased to 80% of the 1RM.
At weeks three, five, and seven, the baseline will be re-measured by phone and the 80% target value re-calculated.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Pharyngeal residue measured with the Normalized Residue Ratio Scale (NRRS)
Time Frame: Baseline, Post-treatment at approximately 8 weeks
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Pixel-based measure of post-swallow pharyngeal barium residue as observed on a videofluoroscopic swallow study captured at 30 frames per second.
This measure will represent the amount of pharyngeal residue as it relates to the distance between cervical vertebrae 2 and 4 which serve as an anatomical scalar.
A higher value represents more pharyngeal residue which is a worse outcome.
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Baseline, Post-treatment at approximately 8 weeks
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Modified Barium Swallow Impairment Profile (MBSImP) Overall Impairment Scores
Time Frame: Baseline, Post-treatment at approximately 8 weeks
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Assessment of swallow function is completed though examination of 17 physiologic components requisite for the execution of normal swallowing.
MBSImP includes an operationally defined scoring metric for each component that is applied to accurately describe and quantify progressing levels of impairment.
Total possible range of scores is 0-62 with higher scores indicative of increased impairment.
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Baseline, Post-treatment at approximately 8 weeks
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Change in Penetration-Aspiration Scale Scores
Time Frame: Baseline, Post-treatment at approximately 8 weeks
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The penetration-aspiration scale, a validated scale used to measure the severity of airway invasion with swallowing, will be used with recordings of videofluoroscopic swallow studies.
This is an 8-point scale with no airway invasion represented by a score of 1 and aspiration with no response represented by a score of 8.
A higher score represents a worse outcome.
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Baseline, Post-treatment at approximately 8 weeks
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Change in Lingual strength-maximal isometric lingual pressures
Time Frame: Baseline, Post-treatment at approximately 8 weeks
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Maximum lingual pressures will be measured at the anterior and posterior locations of the tongue using the Iowa Oral Performance Instrument (IOPI).
A higher value represents greater lingual pressure generation which is a better outcome.
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Baseline, Post-treatment at approximately 8 weeks
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Change in Functional Oral Intake Scale
Time Frame: Baseline, Post-treatment at approximately 8 weeks
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This is a validated scale used the quantify the level of oral versus nonoral intake as well as any dietary modifications needed.
A score of 1 represents no oral intake with complete dependence on a feeding tube while a score of 7 represents total oral intake with no diet modifications.
A higher score represents a better outcome.
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Baseline, Post-treatment at approximately 8 weeks
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Change in Swallowing Quality of Life Questionnaire
Time Frame: Baseline, Post-treatment at approximately 8 weeks.
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The Swal-QOL is a validated questionnaire focused on swallowing-related quality of life.
It comprises 10 multi-item scales, 2 general scales, and a 14-item symptom battery.
Total possible range of scores is 0-100, higher scores represent better quality of life.
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Baseline, Post-treatment at approximately 8 weeks.
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Change in Zarit Burden Interview
Time Frame: Baseline, Post-treatment at approximately 8 weeks
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The Zarit Caregiver Burden Scale is used as a measure of caregiver psychological stress.
The scores across all 22 items are summed and the range for the total score is from 0-88 with higher scores indicating greater burden (a worse outcome).
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Baseline, Post-treatment at approximately 8 weeks
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Change in Pneumonia diagnoses
Time Frame: Post-enrollment at approximately days 7, 14, 28, 42, 56, 90, and 180
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As an exploratory outcome, we will review the electronic health record for all pneumonia diagnoses (ICD-10 codes)for 180 days after enrollment in the study.
A decrease in the number of pneumonia diagnoses represents improvement.
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Post-enrollment at approximately days 7, 14, 28, 42, 56, 90, and 180
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Change in Salivary Production Rates
Time Frame: Baseline, Post-treatment at approximately 8 weeks
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Saliva production will be quantified through weighing collection tubes before and after unstimulated and stimulated saliva collection.
A higher saliva weight represents a greater salivary flow rate and more saliva production.
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Baseline, Post-treatment at approximately 8 weeks
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Change in Residual Mucosal Saliva (RMS)
Time Frame: Baseline, Post-treatment at approximately 8 weeks
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RMS correlates with hyposalivation and dryness perception, will be collected from the anterior hard palate (AHP), anterior tongue (AT), and lower labial (LL) surfaces using SialoPaper strips (Oraflow Inc., Smithtown, NY, USA).
These strips will be applied for 10 seconds and measured using Periotron device (Oraflow Inc.).
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Baseline, Post-treatment at approximately 8 weeks
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Change in Dynamic Imaging Grade of Swallowing Toxicity (DIGEST) scores
Time Frame: Baseline, Post-treatment at approximately 8 weeks
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Assessment of swallow function is completed though analysis of videofluoroscopic images for swallowing safety and efficiency with the DIGEST tool.
This is a validated method for identifying and rating penetration, aspiration, and residue, resulting in an overall score.
DIGEST scores combine an evaluation of individual swallows to determine a safety grade of 0-4 with an efficiency grade of 0-4 to determine an overall DIGEST grade of 0 (no impairment) to 4 (profound impairment).
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Baseline, Post-treatment at approximately 8 weeks
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Nicole Rogus-Pulia, PhD, CCC-SLP, University of Wisconsin, Madison
Publications and helpful links
General Publications
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Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Mental Disorders
- Digestive System Diseases
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Neurocognitive Disorders
- Gastrointestinal Diseases
- Pharyngeal Diseases
- Otorhinolaryngologic Diseases
- Neurodegenerative Diseases
- Esophageal Diseases
- Tauopathies
- Dementia
- Alzheimer Disease
- Deglutition Disorders
Other Study ID Numbers
- 2018-0835
- A534255 (Other Identifier: UW Madison)
- SMPH/MEDICINE/GER-AD DEV (Other Identifier: UW Madison)
- K76AG068590 (U.S. NIH Grant/Contract)
- Protocol Version 1/11/2024 (Other Identifier: UW Madison)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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