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EMST and Swallowing in Long-Term Survivors of HNCA

Effects of Expiratory Muscle Strength Training (EMST) on Long-Term Swallowing Dysfunction in Persons With Head and Neck Cancer (HNCA) Post Irradiation (RT)

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03975465
Enrollment
6
Registered
2019-06-05
Start date
2018-09-10
Completion date
2024-06-04
Last updated
2024-12-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Deglutition Disorders, Head and Neck Neoplasms

Keywords

oropharyngeal cancer, laryngeal cancer, swallow, chemoradiation, expiratory muscle strength training, long-term survivor

Brief summary

This study is a randomized trial examining the impact of expiratory muscle strength training (EMST) on oral intake, swallowing function, and swallow-related quality of life in persons treated for cancer of the head and neck (HNCA) with radiation therapy or chemoradiotherapy (RT/CRT) at least 5 years previously.

Detailed description

Twenty (20) persons treated for cancer of the head and neck (HNCA) with radiation therapy or chemoradiotherapy (RT/CRT) at least 5 years previously will be randomized to an 8-week program of either EMST only and Standard Care only in order to examine the impact of EMST on swallowing function. The EMST program will consist of 5 sets of 5 breaths, 5 days per week for 8 weeks at 75% of maximum expiratory strength. Patients randomized to the EMST group will use the EMST150 (product name) expiratory muscle strength trainer according to package instructions. Standard Care will include swallowing exercises designed to strengthen muscles that contribute to pharyngeal phase motor events and increase structural range of motion. Subjects will be instructed to practice these exercises following a progressive protocol 5 days per week for 8 weeks. All subjects will be evaluated at baseline and at the completion of their rehabilitation program. Assessment will include measurement of maximum expiratory pressure (MEP), a videofluoroscopic swallow study (VFSS) to objectively document swallow function, administration of swallow-related quality of life (QOL) questionnaires, and documentation of current diet using the International Dysphagia Diet Standardisation Initiative (IDDSI) Drink Levels and Food Levels.

Interventions

8 weeks of EMST at 75% maximum expiratory pressure (MEP)

BEHAVIORALPharyngeal Muscle Strengthening Exercises

8 weeks of exercises designed to increase pharyngeal muscle strength for swallowing

Sponsors

Froedtert Hospital
CollaboratorOTHER
Medical College of Wisconsin
CollaboratorOTHER
University of Wisconsin, Milwaukee
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Outcomes Assessor)

Masking description

Researchers assessing the outcomes will not know the arm to which the subject was randomized.

Intervention model description

Subjects will be randomized to an 8-week program of either Expiratory Muscle Strength Training (EMST) or Standard Care in order to examine the impact of EMST on swallowing function

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Subject was treated for cancer in the oral cavity, oropharynx, hypopharynx, larynx, or for an unknown primary at least 5 years prior to enrollment. Subjects may have had surgery as long as a minimum dose of 50 Gy of radiation was part of the treatment; 2. Subject must have a current swallow complaint or impairment; these include but are not limited to reduced oral intake, perceived difficulty with bolus transport (e.g. feeling of food sticking in throat); aspiration on various bolus consistencies; 3. Ability to follow directions and engage in a program of rehabilitation

Exclusion criteria

1. the subject's swallowing problems are unrelated to treatment for HNCA (e.g. cognitive impairment, history of stroke); 2. the subject presents with contraindications for EMST as specified in the EMST150 package insert unless cleared for participation by the subject's physician. These conditions include untreated hypertension, untreated gastroesophageal reflux diseas, recent stroke, lung disease, and pregnancy.

Design outcomes

Primary

MeasureTime frameDescription
Timing of Aspiration (category)8 weeksFrom Videofluoroscopic Swallow Studies (VFSS), timing of aspiration will be determined from baseline to post-treatment. Timing is identified as a category, either before, during, or after.
Presence of pharyngeal residue (dichotomous)8 weeksFrom Videofluoroscopic Swallow Studies (VFSS), the presence of residue in the pharynx (yes or no) will be determined from baseline to post-treatment.
Penetration-Aspiration Scale rating (number)8 weeksFrom Videofluoroscopic Swallow Studies (VFSS), change in the Penetration-Aspiration Scale (PAS) score will be determined from baseline to post-treatment. Penetration-Aspiration Scale is an 8-point ordinal rating scale that rates the depth to which food or liquid invades the airway. Values range from a minimum of 1 to a maximum of 8; higher values represent worse outcome (i.e. greater depth of invasion into the airway)
Level of Oral Intake (number)8 weeksChange in Food Level and Drink Level on International Dysphagia Diet Standardisation Initiative (IDDSI) scale will be calculated from baseline to post-treatment. IDDSI scale rates the level of liquid or food that the person can eat. Scale values range from 0 to 7, with higher values indicating better outcome (greater ability to eat).
Maximum Expiratory Pressure (MEP) cm H208 weeksChange in maximum expiratory pressure level will be calculated from baseline to post-treatment.
Extent of hyoid movement (mm)8 weeksFrom Videofluoroscopic Swallow Studies (VFSS), the change in extent of hyoid movement in mm will be determined from baseline to post-treatment.
Upper esophageal sphincter (UES) opening width (mm)8 weeksFrom Videofluoroscopic Swallow Studies (VFSS), the change in width of UES opening width in mm will be determined from baseline to post-treatment.

Other

MeasureTime frameDescription
M.D. Anderson Dysphagia Inventory (MDADI) (number)8 weeksChange in scores on the M.D. Anderson Dysphagia Inventory (MDADI) will be calculated from baseline to post-treatment. MDADI consists of four ordinal rating scales with scores ranging from 0 to 100 with higher score reflecting better function.
Eating Assessment Tool (EAT-10) (number)8 weeksChange in score on the EAT-10 will be calculated from baseline to mid-treatment to post-treatment. EAT-10 is an ordinal rating scale with values that range from 0 to 40, with lower score reflecting better function.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026