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Hind D, Drabble SJ, Arden MA, Mandefield L, Waterhouse S, Maguire C, Cantrill H, Robinson L, Beever D, Scott A, Keating S, Hutchings M, Bradley J, Nightingale J, Allenby MI, Dewar J, Whelan P, Ainsworth J, Walters SJ, Wildman MJ, O'Cathain A. Feasibility study for supporting medication adherence for adults with cystic fibrosis: mixed-methods process evaluation. BMJ Open 2020; 10:e039089. [PMID: 33109661 PMCID: PMC7592300 DOI: 10.1136/bmjopen-2020-039089] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 07/27/2020] [Accepted: 09/29/2020] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVES To undertake a process evaluation of an adherence support intervention for people with cystic fibrosis (PWCF), to assess its feasibility and acceptability. SETTING Two UK cystic fibrosis (CF) units. PARTICIPANTS Fourteen adult PWCF; three professionals delivering adherence support ('interventionists'); five multi-disciplinary CF team members. INTERVENTIONS Nebuliser with data recording and transfer capability, linked to a software platform, and strategies to support adherence to nebulised treatments facilitated by interventionists over 5 months (± 1 month). PRIMARY AND SECONDARY MEASURES Feasibility and acceptability of the intervention, assessed through semistructured interviews, questionnaires, fidelity assessments and click analytics. RESULTS Interventionists were complimentary about the intervention and training. Key barriers to intervention feasibility and acceptability were identified. Interventionists had difficulty finding clinic space and time in normal working hours to conduct review visits. As a result, fewer than expected intervention visits were conducted and interviews indicated this may explain low adherence in some intervention arm participants. Adherence levels appeared to be >100% for some patients, due to inaccurate prescription data, particularly in patients with complex treatment regimens. Flatlines in adherence data at the start of the study were linked to device connectivity problems. Content and delivery quality fidelity were 100% and 60%-92%, respectively, indicating that interventionists needed to focus more on intervention 'active ingredients' during sessions. CONCLUSIONS The process evaluation led to 14 key changes to intervention procedures to overcome barriers to intervention success. With the identified changes, it is feasible and acceptable to support medication adherence with this intervention. TRIAL REGISTRATION NUMBER ISRCTN13076797; Results.
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Affiliation(s)
- Daniel Hind
- Clincal Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Sarah J Drabble
- School of Health and Related Research, University of Sheffield, Sheffield, UK
| | - Madelynne A Arden
- Centre for Behavioural Science and Applied Psychology, Sheffield Hallam University, Sheffield, UK
| | | | - Simon Waterhouse
- Clincal Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Chin Maguire
- Clincal Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Hannah Cantrill
- Clincal Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Louisa Robinson
- Clincal Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Daniel Beever
- Clincal Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Alex Scott
- Clincal Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Sam Keating
- Clincal Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Marlene Hutchings
- Sheffield Adult Cystic Fibrosis Unit, Sheffield Teaching Hospitals NHS Foundation Trust, Northern General Hospital, Sheffield, Sheffield, UK
| | - Judy Bradley
- Wellcome-Wolfson Institute For Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Julia Nightingale
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Mark I Allenby
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Jane Dewar
- Wolfson Cystic Fibrosis Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Pauline Whelan
- Health eResearch Centre - Division of Imaging, Informatics and Data Sciences, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - John Ainsworth
- Health eResearch Centre - Division of Imaging, Informatics and Data Sciences, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Stephen J Walters
- School of Health and Related Research, University of Sheffield, Sheffield, UK
| | - Martin J Wildman
- School of Health and Related Research, University of Sheffield, Sheffield, UK
- Sheffield Adult Cystic Fibrosis Unit, Sheffield Teaching Hospitals NHS Foundation Trust, Northern General Hospital, Sheffield, Sheffield, UK
| | - Alicia O'Cathain
- School of Health and Related Research, University of Sheffield, Sheffield, UK
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