Randomised trial of a web-based intervention for adherence in cystic fibrosis

ISRCTN ISRCTN37959826
DOI https://doi.org/10.1186/ISRCTN37959826
Secondary identifying numbers IN-UK-205-1889
Submission date
10/11/2015
Registration date
11/11/2015
Last edited
28/10/2022
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Nutritional, Metabolic, Endocrine
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
Cystic fibrosis (CF) is a genetic condition in which the lungs and digestive system become clogged with thick sticky mucus. Non-adherence (when a patient does not continue treatment that a doctor has recommended) remains one of the biggest contributors to failure of treatment. Overall adherence rates have been reported as less than 50% for the disease but vary according to individual treatments and the measurement process used. Web-based intervention is one approach that has attracted increased interest as a means to update knowledge and encourage interaction and engagement with treatment. Online interventions have been shown to improve knowledge and behaviour for illnesses such as diabetes, asthma, arthritis and heart disease. Increased knowledge of medication, the purpose and side effects of treatment and self-monitoring have also been shown. Adherence programmes that use web-based interventions to improve adherence in CF are currently lacking. An early study has tested the use of a web-based intervention for improved adherence to nutritional treatment in children with CF, but there are none that have been tested in adults or within a UK population. This study aims to evaluate the use of a web-based intervention for adherence in adults with cystic fibrosis.

Who can participate?
Patients aged 16 - 60 with CF.

What does the study involve?
At the start of the study participants and their clinicians jointly identify one to three treatments to focus on for improved adherence from six areas of focus (i.e., nutrition, enzymes, liver medications, airways treatments, vitamins and antibiotics). Each participant is then randomly allocated either to receive information for the identified treatments online through the web, or to receive usual care. In the online group participants are provided with online information which shows how medications and treatments work, contains ‘patient video stories’ of their own treatment experiences, and asks participants to undertake specific tasks as they view the information, and to provide feedback and post questions prior to their planned two-monthly appointments. Feedback or questions can then be answered at the next two-monthly appointment. In the usual care group participants receive information from clinicians in the usual way, through individual discussion, fact sheets and clinician explanation. At the beginning and end of the 12-month period participants also complete a knowledge questionnaire for each of their individual and agreed areas of focus, to assess change in knowledge. In total participants attend seven appointments at the start and after 2, 4, 6, 8, 10 and 12 months. At each of these appointments routine tests are carried out for lung function, weight and BMI. Some measures are additionally recorded at 0, 6 and 12 months, namely variation in lung function over previous 6 months, and a blood sample is taken to measure vitamin A, D and E levels.

What are the possible benefits and risks of participating?
This study will establish new ways of improving patient participation in care, and their feedback might benefit other CF patients. Potential risks/burdens include time spent accessing online knowledge and completing questionnaires, and an additional blood test.

Where is the study run from?
Leeds Adult Cystic Fibrosis Unit (UK).

When is the study starting and how long is it expected to run for?
February 2016 to February 2018.

Who is funding the study?
Gilead Sciences Ltd (UK).

Who is the main contact?
Dr Helen White
h.white@leedsbeckett.ac.uk

Contact information

Dr Helen White
Scientific

Nutrition and Dietetic Group
Leeds Beckett University
Leeds
LS1 3HE
United Kingdom

Phone +44 (0)113 812 4994
Email H.White@leedsbeckett.ac.uk
Prof Daniel Peckham
Scientific

University of Leeds and Leeds Teaching Hospitals Trust
Leeds
LS9 7TF
United Kingdom

Study information

Study designInterventional randomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleRandomised trial of a web-based intervention for adherence in cystic fibrosis
Study objectivesAdherence programmes that use web-based interventions to improve adherence in cystic fibrosis are currently lacking. An early pilot RCT, the Be-In-CHARGE! Website Intervention, has tested the use of web-based intervention for improved adherence to nutritional treatment in children with cystic fibrosis and awaits evaluation, but there are none that have been implemented in adults or within a UK population. This study is the third phase of an ongoing programme of funded research which aims to evaluate the use of a web-based intervention for adherence in adults with cystic fibrosis.

Hypothesis: a web-based intervention improves adherence in adults with cystic fibrosis
Ethics approval(s)Yorkshire & The Humber - Bradford Leeds Research Ethics Committee, 18/01/2016, ref: 15/YH/0558
Health condition(s) or problem(s) studiedCystic fibrosis
InterventionParticipants will complete two questionnaires at the beginning and end of the study. The first asks about the medications and treatments currently taken and any reasons they may have difficulty in taking prescribed treatments. The second asks about their quality of life. A blood sample will be taken at the start, middle and end of the study, to check fat soluble vitamin levels A, D and E. At baseline and end (12 months) their pharmacist will be contacted to provide details on how many prescriptions have been collected within the previous 6 months.

1-3 treatments for improved adherence will be identified jointly with the clinician at the start of the study from 6 areas of focus, i.e. nutrition, enzymes, liver medications, airways treatments, vitamins and antibiotics. Each participant will then be randomly allocated to receive information for the identified treatments, either online through the web (and through an electronic device) or to receive usual care. Computerised allocation will be used. In the treatment arm participants will be provided with online information which shows how medications and treatments work, contains ‘patient video stories’ of their own treatment experiences and is interactive, asking participants to undertake specific tasks as they view the information and to provide feedback and post questions prior to their planned two monthly appointments. Feedback or questions can then be answered at the next two monthly appointment. In the usual care arm participants will receive information from clinicians in the usual way, through individual discussion, and fact sheet and clinician explanation. At the beginning and end of the 12-month period participants also complete a knowledge questionnaire for each of their individual and agreed areas of focus, to assess change in knowledge.

In total participants will have 7 appointments according to existing defined standards of care at start, 2, 4, 6, 8, 10 and 12 months. At each of these appointments routine measures will be taken for lung function, weight and BMI. Some measures will additionally be recorded at 0, 6 and 12 months, namely coefficient variation in lung function over previous 6 months, and Vitamin A, D and E levels.
Intervention typeOther
Primary outcome measureMedication Possession Ratio (MPR) derived from two sources (self-report and pharmacy refill records) at baseline and 12 months
Secondary outcome measures1. CF medication knowledge [time frame: baseline, 6 months, 12 months]
2. Health Related Quality of Life measured by the validated CF-QoL [time frame: baseline, 12 months]
3. Lung Function [time frame: baseline, 6 months, 12 months]. Forced expiratory volume in one second (FEV1) percent predicted and forced vital capacity (FVC) – used to calculate rate of decline for 1 year pre and 1 year post start intervention
4. BMI [time frame: baseline, 6 months, 12 months]
5. Vitamin A, D, E levels [time frame: baseline, 6 months, 12 months]
6. Coefficient of variation for lung function [time frame: baseline, 6 months, 12 months]. For each measure the coefficient of variation will be calculated from the variation of the highest and lowest values of lung function over the previous 6 months
7. Pulmonary exacerbation [time frame: number of exacerbations requiring intravenous therapy from 1 year prior to baseline until start; and from baseline to 1 year]
8. CF hospitalisations [time frame: 1 year prior to baseline until start; and from baseline to 1 year] – including iv treatment days
Overall study start date01/02/2016
Completion date01/02/2018

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants100
Total final enrolment99
Key inclusion criteria1. Patients with a diagnosis of CF, attending Leeds Adult CF unit for their complete care
2. Male or female patients age 16 - 60 years old
3. Consecutive volunteers recruited at time of clinical stability [end of in-patient treatment or at out-patient clinic]
4. Patient must be prescribed a minimum of three specified medications (see below) for at least 6 months prior to signing the informed consent form: azithromycin hypertonic saline, TOBI®, Pulmozyme®, pancreatic enzyme replacement therapy, oral antibiotics, fat-soluble vitamins, insulin, inhaled compounded tobramycin, oral nutritional supplements, insulin, AZLI
Key exclusion criteria1. Pregnancy
2. Acceptance on the lung transplant list (note: participation in this study will not delay or exclude patients from being placed on the transplant list in the future or receiving a transplant once enrolled in the study)
Date of first enrolment01/02/2016
Date of final enrolment01/02/2017

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Leeds Adult Cystic Fibrosis Unit
Ward J6
Gledhow Wing
St James's Hospital
Beckett Street
Leeds
LS6 7TF
United Kingdom

Sponsor information

Leeds Teaching Hospitals Trust (UK)
Hospital/treatment centre

34 Hyde Terrace
Leeds
LS2 9LN
England
United Kingdom

ROR logo "ROR" https://ror.org/00v4dac24

Funders

Funder type

Industry

Gilead Sciences Ltd (UK)

No information available

Results and Publications

Intention to publish date30/03/2018
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryData sharing statement to be made available at a later date
Publication and dissemination planDissemination will occur through:
1. Conference abstract submissions
1.1. Interim results European Cystic Fibrosis Conference June 2018 and North American Cystic Fibrosis Conference October 2018
1.2. Final results European Cystic Fibrosis Conference June 2019
2. Peer-reviewed journal submission August 2019
3. Dissemination to patients via Regional CF Unit newsletter and web site
4. ISRCTN website
IPD sharing planNot provided at time of registration

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Abstract results number 697, page 420 05/09/2019 28/10/2022 No No
HRA research summary 28/06/2023 No No

Editorial Notes

28/10/2022: The following changes were made to the trial record:
1. Publication reference added.
2. The total final enrolment was added.
17/06/2016: Ethics approval information added.