Abstract
Background and Objective
Qualitative methods such as semi-structured interviews and focus-groups are used to evaluate the applicability and relevance of device technologies in clinical practice, but when used alone, often lack generalizability. This study aimed to assess the face validity and feasibility of using a composite, three-step qualitative method (the Parker Model), to inform the development and implementation of ava®, an electromechanical device (e-Device) for subcutaneous self-administration of the biologic, certolizumab pegol (CZP), used to treat rheumatic diseases.
Methods
The Parker Model combines concept mapping (CM), participatory design (PD), and stakeholder evaluation (SE). CM, a structured group process, was used to identify patients’ opinions and concerns regarding the e-Device. Patients used this information in iterative PD sessions to create personal e-Device prototypes in cooperation with a designer and a healthcare professional. SE was performed based on semi-structured group and individual interviews with patients and disease-management stakeholders.
Results
The study recruited 14 patients, two doctors, two nurses, one medical secretary, and four other public servants. Three CM workshops revealed four key considerations: technical usability, physical design, concerns, and enthusiasm. Four personalized prototypes were developed during PD sessions. SE confirmed that the identified considerations were pivotal for the implementation and adaptation of the e-Device.
Conclusions
This study is the first to apply a composite, qualitative research model when introducing an e-Device for the treatment and management of rheumatic disease. Results show that input from patients and other stakeholders using the Parker Model can add value to the development and implementation of an e-Device.
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The Parker Model is a composite, qualitative research model designed to evaluate the development and implementation of new medical device technologies. |
The Parker Model combines three distinct methodologies (concept mapping, participatory design, and stakeholder evaluation) which support the flow of information between participants, helping to elucidate key themes influencing user responses to new device technologies. |
This study used a new electromechanical self-injection device (e-Device) to face validate the Parker Model. Feedback from patients and other key stakeholders demonstrated that the model comprehensively captured all constraining concepts related to the device’s design and use, generated feasible solutions to overcome these constraints, and was associated with patients reporting high levels of empowerment. |
1 Introduction
Biologic agents, such as tumor necrosis factor-α inhibitors (anti-TNFs), have emerged as important, effective therapeutics for many chronic inflammatory conditions, including rheumatoid arthritis (RA), psoriatic arthritis (PsA) and ankylosing spondylitis (AS) [1,2,3]. The efficacy and safety of anti-TNF therapeutics are the principal factors affecting both patients’ experience and treatment outcomes. However, other treatment-related characteristics also influence patient satisfaction and their compliance and persistence (adherence) to treatment [4]. For example, biologic agents are often self-injected, but this can be difficult for patients with rheumatic disease, which is often associated with reduced dexterity [5, 6].
Adherence to therapy is suboptimal across multiple chronic conditions including rheumatic diseases [4], creating a significant barrier to achieving therapeutic outcomes [7]. The introduction of new technologies for the management of chronic conditions, which effectively meet patients’ needs, may advance patient engagement and empowerment, and improve adherence to long-term treatment [8]. To achieve this, end-user perspectives need to be considered during device development and implementation. Currently, widely diverging methods are used to assess end-user perspectives, including combinations of focus groups, semi-structured interviews, and ethnographic studies [9]. Standardizing the methods used to obtain end user feedback on the use and design of new medical devices would help ensure consistent and effective end-user involvement in the development and implementation of medical devices.
The objective of the current study was to evaluate the face validity and feasibility of the Parker Model—a novel, composite, qualitative research approach—as a method of assessing end-user perspectives on new self-injection device technologies. The Parker Model is a three-step, synergistic process comprising concept mapping (CM), participatory design (PD), and stakeholder evaluation (SE) which explores the applicability and relevance of introducing the new technology in real-life clinical practice. Here, we describe and evaluate the use of the Parker Model in the implementation of ava®, a reusable, electronic device (e-Device) for self-injecting single-use, disposable, pre-filled dose-dispenser cartridges of certolizumab pegol (CZP) [an anti-TNF approved for the treatment of RA, PsA, and axial spondyloarthritis (axSpA)] [10]. CM was used to identify the core concepts underlying patients’ thoughts on the e-Device design and functionality. PD took the insights gained during the CM and investigated how the device could be further adapted to meet individual patient needs. SE was used to gather insights from patients and key disease-management stakeholders to inform the implementation and future development of the e-Device.
2 Methods
2.1 Patients and Eligibility
Patients receiving CZP treatment were recruited from the Department of Rheumatology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Denmark. To be eligible to participate, patients had to be aged 18–85 years, diagnosed with moderate to severe RA, or spondyloarthritis (SpA) (split into PsA and AS). Patients were consecutively recruited from the outpatient clinic to participate in the Parker Model until qualitative data saturation (defined as the presence of redundancy in emerging concepts) was achieved. If data saturation was not achieved after the first three CM sessions were run, two additional sessions would be run.
Prior to the first CM session, all participants attended a meeting where they were provided with the e-Device, instructions for use and a dummy dose-dispenser cartridge to familiarize themselves with the design (Fig. 1). To ensure each participant understood the design features of the e-Device, a trained instructor explained how the e-Device would be used by patients. No simulated injections were performed, but the patients were allowed to practice and explore the injection process with the e-Device using a reusable dose-dispenser cartridge that did not contain a needle, syringe or any medication.
The ava® e-Device: contents of the ava® kit (a); key features of ava® (b). The ava® kit comes in a storage case with the ava® device, a user manual, a welcome booklet giving an introduction to and overview of ava®, a help line contact card to assist patients with any questions or concerns they may have about ava®, an electrical charger (including regional plug), 2 spare needle caps (green), a USB/micro USB cable, and a reusable dose-dispenser cartridge that does not contain a needle, syringe or any medication, which allows patients to practice and explore the injection process. e-Device electromechanical device
All procedures were performed in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1964, as revised in 2013. Informed consent was obtained from all patients before being included in the study, and the project was approved by the Regional Ethical Committee (file number: 16016608).
2.2 The Parker Model
The Parker model was developed and conducted at the Parker Institute, Copenhagen F, Denmark between November 2016 and January 2017 and comprises three qualitative methods: CM, PD, and SE (Fig. 2). The methods were selected so that information could be easily transferred between each component of the study, ensuring no insights were lost.
The Parker Model used to gain stakeholder input on the design and implementation of ava®. Concept mapping and participatory design were used to gather the patients’ perception of the relevance of the e-Device, and stakeholder evaluation provided a broader perspective of both the relevance and the implementation of the e-Device through the engagement of healthcare professionals, healthcare managers, a device specialist and an economist, in addition to patients. e-Device electromechanical device
The CM involved full-day, patient group workshops to capture the main concepts underpinning patients’ thoughts regarding a hypothetical switch from CZP treatment by self-injection using a pre-filled syringe (PFS) to self-administration using an e-Device. The concepts identified in the CM workshops were used in three iterative, full-day PD sessions to develop personalized prototypes of an e-Device that patients felt was ‘ideal’ and met their individual needs. Finally, SE was conducted via interviews with patients who were unable to participate for the full-day CM and PD workshops, and key disease-management stakeholders, to explore the applicability and relevance of implementing the e-Device.
2.2.1 Concept Mapping
CM is a formal group process with a structured approach used to identify and organize ideas on a topic of interest. It is highly effective for the development of outcome measures, such as key patient considerations, when using a device for the first time [11]. In this study, CM was conducted through three, full-day, focus groups with patients with RA or SpA. At the start of each focus group the CM process was introduced and directed as detailed in Supplementary Figure 1 [see the Electronic Supplementary Material (ESM)]. For more detailed information on the CM methodology please refer to the ‘Supplementary Methods.’
Clustering analysis was performed on the participant statements generated during the three focus group CM workshops using multidimensional scaling (MDS) analysis (CS Global MAX; Concept Systems, Inc.) [12]. The x and y values from the MDS were used to perform a hierarchical cluster analysis which divided the statements into non-overlapping clusters [13, 14]; any duplicate statements within the concept maps were removed [11, 15]. Independent and thematic analysis of the reduced statement pool were performed separately by two authors (L. Klokker and T.S. Jørgensen), to identify common clusters while preserving both the exact wording of the statements and the cluster labels assigned to them by patients during the workshop (described in Supplementary Figure 1).
To identify which issues were most important for patients with rheumatic disease treated with biologics, patients were asked to rate the importance of each statement on a 5-point scale, from 1 (‘not important’ for people with RA or PsA receiving biologics) to 5 (‘very important’). Mean and median ratings of importance assigned by the patients for each statement were calculated using Wilcoxon two-sample test.
2.2.2 Participatory Design
Patients who participated in the CM workshops and self-injected CZP using a PFS were invited to participate in three iterative PD sessions to investigate how the device could be further adapted to meet individual patient needs. Patients were asked to use the PD sessions to ‘develop an ideal device’ based on their specific individual needs and the concepts identified in the CM workshops. Each PD session took the form of a non-structured interview of ~ 70 min duration. A healthcare professional (HCP) (T.S. Jørgensen) and a product designer (H.C. Asmussen) were present at all sessions to act as consultants to the patients.
At the beginning of each PD session the designer presented the current state of development; for session 1, this was the original e-Device. At the end of each PD workshop, the patient and designer agreed to a set of key findings identified during the session. Using these findings and any patient sketches, the device designer then produced a device prototype using paper and clay. The prototype was presented to the patient at the beginning of the consecutive session for their feedback, which was then used to iteratively improve the subsequent version of the prototype. At the end of the third session, the patient was presented with a 3D rendered image of the final version of their prototype. A total of four prototypes (one for each participant) were produced.
2.2.3 Stakeholder Evaluation
SE evaluated the applicability and relevance of introducing the e-Device, using a combination of individual and group interviews with key disease-management stakeholders and patients. Disease management stakeholders from within the Department of Rheumatology, the Regional Clinical Pharmacological Department, and the Regional Service Center for Research and Innovation were recruited by email invitation. Patients eligible for the study who were unable to participate in the full-day CM workshops were recruited for the SE.
Topics of discussion in the SE interviews included drivers and barriers regarding the standard route of injection (PFS) versus the e-Device, and how various elements of the e-Device could be adapted or improved in the next generation of the e-Device to better meet patients’ needs.
The interviews were guided and analyzed using theory-based SE, which utilized three theories [16]. Situation theory was used to examine how stakeholders perceived the design features of the e-Device compared with the PFS, understand how the e-Device would be implemented in clinical practice, and identify any perceived challenges with the device’s implementation. Normative theory was used to evaluate stakeholders’ values, ideals, and goals with regard to introducing and implementing the e-Device. Causal theory was used to examine stakeholder’s opinions on how an e-Device would directly or indirectly impact (either positively or negatively) current challenges and values associated with the PFS.
A transcript of each interview was produced. The transcripts were assessed to identify any comments related to current practice, ideals for practice, and how the e-Device might impact on these issues. Statements in each interview transcript were grouped into themes and coded accordingly [17, 18]. The sections of the transcript text marked with the same theme code across all interviews were compiled and read with the aim of interpreting the meaning of, and identifying any differences between, stakeholder statements.
2.3 Patient-Reported Outcome Measures
To support the face validation and feasibility of the Parker Model as well as investigate the impact of being part of the project, following completion of the workshops, patients were asked to complete a questionnaire that included three validated instruments, translated into Danish: the Health Education Impact Questionnaire (heiQ), to evaluate patient education and empowerment [19,20,21,22]; the Service User Technology Acceptability Questionnaire (SUTAQ), to assess the acceptability of technology in general [23]; and the e-Health Literacy Questionnaire (eHLQ), to assess health literacy, such as the patient’s motivation and ability to engage with digital technologies [24, 25]. A detailed summary of the content of each questionnaire is provided in the ‘Supplementary Methods.’
Individual item scores were based on the Likert scales: 1–4 for both heiQ and eHLQ, and 1–6 for SUTAQ. For all scales, high values indicate positive health-related outcomes, except for the ‘emotional distress’ item in heiQ, where higher values mean greater emotional distress, and for ‘privacy and discomfort’ and ‘care personnel concerns’ in SUTAQ, for which a high score reflects a high level of concern. Descriptive statistical analyses were used to report the results from the questionnaires.
All analyses were carried out using Stata, version 14 [26]. Results from the questionnaire are presented as mean scores.
3 Results
A total of 56 patients were invited to participate in the study. Of those 21 did not reply to the invitation and 21 declined to participate. Of the 14 patients who took part (seven male and seven female), nine had RA, four had PsA, and one had AS. Other stakeholders included two doctors, two nurses, one medical secretary, and four other public servants involved in the management of the selected rheumatic diseases.
3.1 Concept Mapping
CM was applied to three focus group workshops: two groups with four patients with RA in each, and one group with four PsA patients. Patients had a mean age of 65.3 years (min–max: 49–76) and a mean disease duration of 10.8 years (7–23).
During the CM workshops, 121 patient statements were generated and analyzed using cluster analyses; four key concepts emerged regarding e-Device implementation, which were reviewed by all workshop participants: technical usability, physical design, concerns, and enthusiasm. The four concepts (clusters), sub-clusters, and examples of statements that fell into each cluster/sub-cluster, are shown in Table 1. Homogenous response, also known as ‘saturation,’ was achieved; this indicated that the number of patients included was sufficient and so the option to expand the number of CM workshops was not used.
Each participant also rated the statement’s relative importance with respect to patients receiving treatment using the e-Device. Participants rated ‘easy to use,’ ‘the main function is to take the medication’ and ‘must be easy to handle when you have sore fingers,’ as being the most important statements (Supplementary Figure 2; see the ESM). In contrast, ‘it’s hard to imagine how the needle is positioned in the device,’ ‘sharing information with the doctor can feel like being monitored,’ and ‘must be capable of handling flexible doses’ were rated as being of relatively minor importance (Supplementary Figure 2).
3.2 Participatory Design
Three male and one female patient (two with RA and two with PsA; mean age: 66.8 years; min–max: 54–76) who had participated in the CM workshops were recruited to individually participate in three iterative PD sessions each. The patients’ brief was to use the three PD sessions to create a prototype that they felt would be an ideal e-Device that met their individual needs, whilst also bearing in mind all the concepts identified in the CM workshops. A number of key design features of the e-Device were highlighted by patients as being important during the PD sessions, including the size and shape, sound, the screen, connectivity options, charging options, and portability. A summary of the PD session discussions, and the 3D rendered images of the final personalized prototypes developed by the designer after the final PD session, are provided in Table 2.
3.3 Stakeholder Evaluation
To reduce the impact of power dynamics [27], SE comprised two group interviews (one with HCPs, the other with patients) and four individual interviews. The HCP group interview was conducted with two physicians, two nurses and one medical secretary from the department of rheumatology at the same hospital; the patient group interview was conducted with one male patient with RA and one female patient with AS. Solo interviews were conducted with the head of a clinical pharmacological department and member of RADS (the Danish council for the use of expensive hospital medicines), a chief nurse, and an economist (both the nurse and economist were at the management level in hospital rheumatology departments), and a regional medical and innovation consultant.
Analysis of the interview transcripts indicated two major themes: everyday life (with flexibility and functionality identified as sub-themes) and, relevance and clinical practice (with compliance and time as sub-themes). The drivers and barriers associated with the implementation and use of the standard route of injection [PFS and pre-filled pen (PFP)] and the e-Device, and how various elements could be adapted and developed in the current and next generation of the e-Device, were discussed (Table 3). In general, the results of the SE interviews highlighted broad differences in the types of perspectives shared by the different groups; patients were more focused on the functionality of the device and making suggestions relevant to incorporating the technology into everyday life, whilst key disease-management stakeholders were more focused on injection logging and the associated data compliance, time-saving considerations for patients and HCPs, the types of patients and treatment scenarios for which the e-Device would be relevant, and implementation of the e-Device in clinical practice.
3.4 Patient-Reported Outcomes
After participating in the evaluation on the e-Device, all 14 participating patients were invited to complete a questionnaire which included heiQ, SUTAQ and eHLQ to assess the participants’ health literacy, the levels of empowerment they felt regarding the e-Device and their acceptance of technology in general. A total of seven male and five female patients (86%) responded; demographic characteristics of the respondents are shown in Supplementary Table 1 (see the ESM). The results of the heiQ, SUTAQ, and eHLQ are shown in Supplementary Figure 3. While the patients who evaluated the e-Device and responded to the questionnaires had medium-high health literacy (based on feedback from the heiQ), the e-Device was associated with high levels of empowerment, and there were high levels of acceptability of e-Device technology (in general) among the group.
4 Discussion
The aim of this study was to assess the face validity and feasibility of the Parker Model at acquiring end-user perspectives on new self-injection device technologies. The Parker Model used a synergistic three-step qualitative method incorporating CM, PD, and SE, which was developed to inform the design, development, and implementation of a new e-Device for the subcutaneous self-administration of CZP in patients with rheumatic disease. Unstructured feedback collected from all participants at the end of the study demonstrated that they thought the Parker model comprehensively captured all constraining concepts related to the device’s design and use, and the model effectively generated feasible solutions to overcome all identified constraints; as such, the Parker Model method was regarded highly relevant for its purpose.
The results of the CM and PD phases of the study indicated that while the introduction of the e-Device for the disease management of chronic rheumatic diseases is a welcome development, no single e-Device design would be ideal for all patients—‘no size fits all.’ However, providing patients with a number of different injection device options to choose from would enable them to select an option suited to their needs. Overall, the Parker Model evaluation suggests that by carefully considering the feedback on the design, function, and implementation of the e-Device raised by patients and disease-management stakeholders, their expectations and requirements can be met through informed implementation and improvement of the e-Device.
The Parker Model methodology of using CM, PD, and SE has several advantages over using any one of these methods individually. Used together, these methods interact and support the flow of information from one session to the next, helping to mediate a co-creative process involving participants and investigators. The Parker method also has advantages over other qualitative research methods that are used in the development and implementation of medical devices. Ethnographic studies are field based analyses and so have the advantage of observing patients in a ‘real world’ setting [28]; however, they are associated with investigator interpretation bias [29], and they are resource intensive, limiting the number of participants and generalizability of the data [28]. Semi-structured interviews provide the flexibility required for participants to give varied and personal responses, but also capture heterogeneous opinions that are difficult to generalize.
The Parker Model increased the generalizability of the CM results by using a focus-group format and a nominal group process [30], which gave each participant the opportunity to provide input (preventing more outspoken participants from dominating the discussion). This, and the CM process itself, ensured a variety of perspectives, while also reducing the number of clustered statements because participants were asked to identify the key concepts together [31]. The Parker Model further increased generalizability by ensuring that all participants involved in the PD session had also participated in the CM session. This helped to ensure that the prototypes developed during this session incorporated the feedback from all patients. The SE broadened the focus to include stakeholder input on the context of the e-Device and future iterations of it in the current healthcare setting, to evaluate device eligibility for implementation and how to make it readily beneficial in the public setting. Practically, since the three steps of the Parker Model can be applied in parallel, it is also an efficient way of capturing the various inputs from patients and other stakeholders.
High levels of treatment adherence among multiple sclerosis patients have been reported in studies examining the use of electronic injection devices that are similar to the e-Device evaluated in the current study; for example, allowing patients to individually adjust settings, such as injection speed and depth, and having the ability to electronically store data such as date and time of injections [32,33,34]. Consistent with these studies in multiple sclerosis, patients with rheumatic diseases recruited to provide their input on the e-Device in the current study reported high levels of e-Device acceptability and high levels of empowerment in the heiQ, SUTAQ, and eHLQ questionnaire. Patient engagement in healthcare is associated with better treatment adherence, which has the potential to improve health outcomes and patient care, and reduce treatment costs [35, 36]. Patients’ desire for empowerment was previously reported in an ethnographic study exploring contrasts in patient- and physician-reported views on living with RA [37], which, together with the results from the current study, suggests that ava® has the potential to improve patient engagement, which may improve treatment adherence.
The main limitations of the current study were associated with the relatively small number of patients and disease-management stakeholders, who were all from the same healthcare setting; stakeholder input from various institutions would have furthered the generalizability of the results. The small number of patients limited the range of ages that could be surveyed, and the patients were not all being treated for the same rheumatic disease, which may have introduced heterogeneity in the results. The male-to-female ratio among the recruited patients was equal, which is not representative of the fact that some rheumatic diseases affect more females than males. The patients also had established disease, meaning that they were already accustomed to, and satisfied with, self-injection using the PFS or PFP, and had sufficient dexterity and hand function to operate the e-Device. No patients had to be excluded from the study due to being unable to use the device; however, the patients recruited in this study may not be representative of all patients with rheumatic disease, and no one device design is likely to be ‘ideal’ for all patients.
5 Conclusions
Overall, this study has demonstrated that the Parker Model is an effective qualitative method for collecting and generalizing responses from patients and other key stakeholders involved in disease management. This is the first time a composite, qualitative research model has been applied when introducing a new device to support the treatment of rheumatic diseases, and these resources can help ensure added value when developing devices for disease management. Although this study only evaluated the Parker Model in the context of a self-injection device, with further testing the model could also be applied to evaluate other medical devices, app technologies, and communication strategies; as such, the Parker Model has the potential to play a pivotal role in the future of personalized and outcome-based disease management models in a range of chronic disease areas.
Data Availability Statement
Most of the data generated and analyzed during this study are included in this published article (and its supplementary information files). Some data generated and analyzed during the current study are not publicly available due to confidentiality clauses signed with patients and HCPs, but are available from the corresponding author on reasonable request.
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Acknowledgements
The authors thank the patients, the investigators, and their teams who took part in this study. The authors also acknowledge Debbie Nixon, DPhil, UCB Pharma, UK, for publication coordination and Hinal Tanna, PhD, and Simon Foulcer, PhD, from Costello Medical Consulting, UK, for medical writing and editorial assistance in preparing this manuscript for publication, based on the authors’ input and direction.
Author information
Authors and Affiliations
Contributions
The authors’ contributions to this work are as follows: Substantial contributions to study conception/design or acquisition/analysis/interpretation of data: TSJ, MS, PCT, HCA, AL, LK, LS, IM, HG, and LEK. Drafting of the publication or revising it critically for important intellectual content: TSJ, MS, PCT, HCA, AL, LK, LS, IM, HG, and LEK. Final approval of the publication: TSJ, MS, PCT, HCA, AL, LK, LS, IM, HG, and LEK.
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Funding
UCB Pharma and the Oak Foundation sponsored the study and the development of the manuscript; UCB Pharma reviewed the text to ensure that from the UCB Pharma perspective, the data presented in the publication are scientifically, technically, and medically supportable, that they do not contain any information that has the potential to damage the intellectual property of UCB, and that the publication complies with applicable laws, regulations, guidelines, and good industry practice. The authors approved the final version to be published after critically revising the manuscript for important intellectual content.
Conflict of interest
T Jørgensen has received speakers bureau honoraria from Abbvie, Biogen, Novartis, Roche, and UCB Pharma. H.C. Asmussen is a consultant for The Parker Institute and UCB Pharma. L.E. Kristensen has received speakers bureau honoraria from AbbVie, Amgen, BMS, Celgene, Eli Lilly, Janssen Pharmaceuticals, MSD, Novartis, Pfizer, and UCB Pharma. I. Mountian is an employee of UCB Pharma. P.C. Taylor has received research grants from UCB Pharma, Janssen, Galapagos, Eli Lilly, and Abide Therapeutics, and consulting fees from AbbVie, Eli Lilly, UCB Pharma, Pfizer, Biogen, Janssen, Sanofi, and GlaxoSmithKline. L. Klokker, M. Skougaard, A. Lee, L. Svejstrup, and H. Gudbergsen declare that they have no conflict of interest.
Ethical approval
All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1964, as revised in 2013.
Informed consent
Informed consent was obtained from all patients for their inclusion in the study.
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Jørgensen, T.S., Skougaard, M., Taylor, P.C. et al. The Parker Model: Applying a Qualitative Three-Step Approach to Optimally Utilize Input from Stakeholders When Introducing New Device Technologies in the Management of Chronic Rheumatic Diseases. Patient 11, 515–526 (2018). https://doi.org/10.1007/s40271-018-0306-8
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DOI: https://doi.org/10.1007/s40271-018-0306-8