Reproducibility of Virtual Exercise Assessments Versus Face-to-face Exercise Testing in Adults With Cystic Fibrosis (RExA-CF)

Reproducibility of Virtual Exercise Assessments Versus Face-to-face Exercise Testing in Adults With Cystic Fibrosis - a Pilot Feasibility Study

RExA-CF is investing if results from exercise tests (the Chester Step Test and the One-Minute Sit-to-Stand test) completed face to face are comparable to results of the same tests completed via a virtual teleconferencing platform. The study involves two exercise testing sessions (one face-to-face and one via a video link), with participants being randomised to complete the two exercise tests (the 1-minute sit-to-stand test and the Chester Step test). The two testing sessions will be completed within three weeks of each other, the order of which will be randomly allocated. One session will be completed face-to-face during a pre-arranged visit to the hospital, the other test session will be completed through a video call at a time convenient to the participants. After the second testing session participants will be asked some questions about the face-to-face and video tests to get their views about the two formats.

Study Overview

• Status: Completed
• Conditions: Cystic Fibrosis
• Intervention / Treatment: Procedure: One-Minute Sit-to-Stand Test; Procedure: Chester Step Test

• Study Type: Interventional
• Enrollment (Actual): 19
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United Kingdom
  • London, United Kingdom, SW3 6NP
    • Royal Brompton Hospital, Guy's and St Thomas's NHS Foundation Trust

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Diagnosis of cystic fibrosis (as confirmed by standard criteria)
• Sixteen years of age or over
• Home internet access
• Stable CF disease as judged by the medical team
• Registered with the Royal Brompton Hospital adult CF team

Exclusion Criteria:

• Inability to give consent for treatment or measurement
• Current participation in another interventional study
• Current moderate haemoptysis (greater than streaking in the sputum)
• Pregnancy
• Forced expiratory volume in 1 second (FEV1) below 30% predicted
• Dependency upon oxygen therapy (with home oxygen concentrators or portable oxygen cylinders) or non-invasive ventilation (NIV)
• Current neurological or musculoskeletal injury which would prevent completion of exercise tests
• Inability to complete the second set of exercise tests within three weeks

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Diagnostic
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: Virtual exercise testing via video link; The One-Minute Sit-to-Stand test and the Chester Step test will be completed via a video link call with the participant and the research team.	Procedure: One-Minute Sit-to-Stand Test; This test involves sitting down and standing up from a normal height chair (can be a dining room or kitchen chair at home) for one minute. Participants can rest or stop at any time if fatigued. Participants will be asked to record your heart rate and oxygen levels before and after the test and will be given a monitor to do this with if they do not already have one. This test should take a maximum of 5 minutes.; Procedure: Chester Step Test; This test involves the participant stepping up and down off of a step (this can be a bottom stair or doorstep at home) keeping up with the beat of a recording. The speed of the beat increases every 2 minutes, and the test continues until the participant cannot keep up with the pace, wish to stop or the test ends which takes 10 minutes. Participants will be asked to record heart rate and oxygen levels before and after the test. This test should take a maximum of 15 minutes.
Active Comparator: Face-to-Face exercise testing; The One-Minute Sit-to-Stand test and the Chester Step test will be completed face to face at a hospital appointment with the participant and the research team.	Procedure: One-Minute Sit-to-Stand Test; This test involves sitting down and standing up from a normal height chair (can be a dining room or kitchen chair at home) for one minute. Participants can rest or stop at any time if fatigued. Participants will be asked to record your heart rate and oxygen levels before and after the test and will be given a monitor to do this with if they do not already have one. This test should take a maximum of 5 minutes.; Procedure: Chester Step Test; This test involves the participant stepping up and down off of a step (this can be a bottom stair or doorstep at home) keeping up with the beat of a recording. The speed of the beat increases every 2 minutes, and the test continues until the participant cannot keep up with the pace, wish to stop or the test ends which takes 10 minutes. Participants will be asked to record heart rate and oxygen levels before and after the test. This test should take a maximum of 15 minutes.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Aerobic Capacity from the Chester Step test	This test involves the participant stepping up and down off of a step (this can be a bottom stair or doorstep at home) keeping up with the beat of a recording. The speed of the beat increases every 2 minutes, and the test continues until the participant cannot keep up with the pace, wish to stop or the test ends which takes 10 minutes. Participants will be asked to take their heart rate and oxygen levels before and after the test using a provided pulse-oximeter. This test should take a maximum of 15 minutes. The results of the test will be used to calculate the participants aerobic capacity (range 0-60)	Completed at week 0 and within 2 weeks of first test
Number of sit to stands completed during One-Minute Sit-to-Stand test	This test involves the participant sitting down and standing up from a normal height chair (can be a dining room or kitchen chair at home) for one minute. Participants can rest or stop at any time if fatigued. This test should take a maximum of 5 minutes.	Completed at week 0 and within 2 weeks of first test

Collaborators and Investigators

• Sponsor: Royal Brompton & Harefield NHS Foundation Trust
• Collaborators: King's College London
• Investigators: Principal Investigator: Gemma E Stanford, Royal Brompton & Harefield NHS Foundation Trust

Study record dates

Study Major Dates

• Study Start (Actual): May 1, 2023
• Primary Completion (Actual): August 1, 2023
• Study Completion (Actual): August 1, 2023

Study Registration Dates

• First Submitted: August 14, 2024
• First Submitted That Met QC Criteria: August 21, 2024
• First Posted (Actual): August 22, 2024

Study Record Updates

• Last Update Posted (Actual): August 22, 2024
• Last Update Submitted That Met QC Criteria: August 21, 2024
• Last Verified: August 1, 2024

More Information

Terms related to this study

• Keywords: Exercise testing
• Additional Relevant MeSH Terms: Digestive System Diseases; Pathologic Processes; Respiratory Tract Diseases; Lung Diseases; Infant, Newborn, Diseases; Genetic Diseases, Inborn; Pancreatic Diseases; Fibrosis; Cystic Fibrosis
• Other Study ID Numbers: RExA-CF V3

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