Dysphagia and Dysphonia Outcomes in SARS CoV-2 (COVID-19) Infection (DYADS Study) (DYADS)

June 26, 2025 updated by: Ekpemi Irune, Cambridge University Hospitals NHS Foundation Trust

Dysphagia and Dysphonia Outcomes in SARS CoV-2 (COVID-19): A Prospective Observational Cohort Study.

This study examines the presence, severity and natural history of dysphagia and dysphonia in the post-extubation and severely unwell COVID-19 patient.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
50

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United Kingdom
      • Cambridge, United Kingdom, CB2 0QQ
        • Cambridge University Hospitals NHS Foundation Trust

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years to 81 years (Adult, Older Adult)

Accepts Healthy Volunteers

N/A

Sampling Method

Non-Probability Sample

Study Population

Patients identified with dysphagia and dysphonia secondary to COVID19 infection. Specifically severely unwell patients and post-extubation patients.

Description

Inclusion Criteria:

  • Patients who have been diagnosed with a positive SARS CoV-2 test.
  • Patients who have been diagnosed with dysphonia and/or dysphagia following COVID 19 treatment.
  • Patients who require investigation and management for dysphonia and/or dysphagia following COVID 19 treatment.
  • Adult patients aged 18 years - 85 years.
  • Patients that meet threshold for referral to the joint MDT clinic following screening

Exclusion Criteria:

  • Patients who cannot undertake the assessment for dysphonia and/or dysphagia.
  • Patients who are being managed with palliative intent.
  • Patients with pre-existing dysphonia and/or dysphagia not previously responding to therapy (pre-existing prior to COVID-19 diagnosis).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Primary endpoint is severity of dysphonia and dysphagia at the time of initial assessment t = day 0 (for ITU patients: Day 0 = 24 hours after extubation or decannulation).
Time Frame: t = day 0 (for ITU patients: Day 0 = 24 hours after extubation or decannulation).
Based on therapy outcome measures from FEES, VoiS
t = day 0 (for ITU patients: Day 0 = 24 hours after extubation or decannulation).

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
The severity of dysphonia and/or dysphagia over an initial 12 month period (at t = 14 days, 1 month, 3 months, 6 months, 9 months, 12 months)
Time Frame: t = 14 days, 1 month, 3 months, 6 months, 9 months, 12 months
Clinical assessment including outcome measures, FEES and/or Videofluoroscopy
t = 14 days, 1 month, 3 months, 6 months, 9 months, 12 months
The severity of dysphonia and/or dysphagia at t = day 5, day 10, day 14, day 21 - For in-patients only.
Time Frame: t = day 5, day 10, day 14, day 21 - For in-patients only.
Clinical assessment including outcome measures, FEES and/or Videofluoroscopy
t = day 5, day 10, day 14, day 21 - For in-patients only.
Relationship between severity of dysphonia and/or dysphagia with grade of ARDS
Time Frame: t = day 0 and 9 months
Clinical assessment including outcome measures, FEES and/or Videofluoroscopy
t = day 0 and 9 months
Relationship between severity of dysphonia and/or dysphagia with length of intubation
Time Frame: t = day 0 and 9 months
Clinical assessment including outcome measures, FEES and/or Videofluoroscopy
t = day 0 and 9 months
Relationship between severity of dysphonia and/or dysphagia with duration of mechanical ventilation
Time Frame: t = day 0 and 9 months
Clinical assessment including outcome measures, FEES and/or Videofluoroscopy
t = day 0 and 9 months
Relationship between severity of dysphonia on quality of life using Voice Symptom Scale (VoiSS) questionnaire over time at day 0, 1 month and 9 months.
Time Frame: t = day 0, 1 month and 9 months.
Questionnaire assessment: This is a 30-item validated quality of life tool that is also a self-reporting tool. It appraises the impact of the patient's abnormal voice from an emotional perspective, related physical symptoms and stratifies the impairment itself in context of day to day activities. VoiSS is currently the most psychometrically robust voice outcome measure. Each item is scored 0 - 4 on the frequency responses: never, occasionally, some of the time, most of the time, always. The total score of 120 measures general voice pathology which is made up of Impairment = maximum score of 60; Emotional = maximum score of 32; Physical = maximum score of 28
t = day 0, 1 month and 9 months.
Relationship between severity of dysphagia on quality of life using Dysphagia Handicap Index (DHI) questionnaire over time at day 0, 1 month and 9 months
Time Frame: t = day 0, 1 month and 9 months
Questionnaire assessment: This is a 25-item questionnaire assessing three domains: physical (9 items), functional (9 items), and emotional aspects (7 items) of the Quality of Life (QOL) in patients suffering with dysphagia. For each statement the patient checks if it applies to him/her all the time, some of the time or never. The suggested scores are 0, 2 and 4, respectively. Using this scoring system amounts to a DHI score range of 0 - 100. The higher the score, the worse the dysphagia related QOL. The patient is also asked to provide a rating of their own impression of the severity of the dysphagia experienced on a scale from 1 (normal) to 7 (severe problem).
t = day 0, 1 month and 9 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Cambridge University Hospitals NHS Foundation Trust

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 15, 2020

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 30, 2022

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 30, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 10, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 10, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 14, 2020

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 29, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 26, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 20/NW/0333

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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