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1.
Br J Dermatol ; 191(2): 243-251, 2024 Jul 16.
Article in English | MEDLINE | ID: mdl-38366988

ABSTRACT

BACKGROUND: Biologic therapies have led to increasing numbers of patients with psoriasis who have clear or nearly clear skin. It is current practice to continue biologic therapy indefinitely in these patients, which contributes to a substantial long-term drug and healthcare burden. 'As needed' biologic therapy in psoriasis may address this; however, our understanding of patient and clinician perceptions of this strategy is limited. OBJECTIVES: The aim of this mixed-methods study was to gain insight into the perspectives of both patients and clinicians regarding the acceptability of an 'as needed' approach to biologic therapy in psoriasis, including potential barriers and enablers to implementation in routine care. METHODS: We first conducted UK-wide online scoping surveys of patients with psoriasis and dermatology clinicians to explore their views on 'as needed' biologic therapy. Using topic guides informed by these survey findings, we then carried out qualitative focus groups with patients and clinicians. Themes were identified using reflexive thematic analysis. RESULTS: Of 67 patients and 27 clinicians completing the scoping surveys, 67% (43 of 64 patients) and 78% (21 of 27 clinicians) supported the use of 'as needed' biologic therapy, respectively. Respondents highlighted advantages such as a reduction in healthcare burden and greater ownership of care. Challenges included logistics of 'as needed' drug provision and potential risks of disease flare and drug immunogenicity. Focus groups comprised 15 patients with psoriasis [9 female patients (60%), average disease duration 32 years (range 9-64)] and 9 dermatology clinicians [8 female clinicians (89%), average dermatology experience 20 years (range 8-33)]. Both patients and clinicians felt that an 'as needed' treatment approach will deliver a reduction in treatment burden and present an opportunity for patient-led ownership of care. Both groups highlighted the importance of ensuring ongoing access to medication and discussing the potential impact of psoriasis recurrence. Patient preferences were influenced by their lived experiences, particularly previous difficulties with medication delivery logistics and establishing disease control. Clinician perspectives were informed by personal experience of their patients adapting their own dosing schedules. Clinicians highlighted the importance of targeted patient selection for an 'as needed' approach, ongoing disease monitoring, and prompt reaccess to medications upon psoriasis recurrence. CONCLUSIONS: These data indicate that 'as needed' biologic therapy in psoriasis is acceptable for both patients and clinicians. Formal assessment of clinical effectiveness and cost-effectiveness is warranted to enable the real-world potential of this approach to be realized.


Psoriasis is a common skin disease that affects up to 2% of adults in the UK and causes red, scaly patches of skin. A new group of injectable medicines (called biologics) are extremely effective at controlling psoriasis. However, continuous use of these medicines can increase the risk of negative side-effects (such as infections). 'As needed' biologic therapy is when a person takes their biologic medication at the first sign of psoriasis recurrence (rather than continuously). This approach has potential to reduce the risks associated with taking biologics, while still maintaining good control of psoriasis symptoms. 'As needed' therapy has not been used in psoriasis yet, and so we wanted to know what people with psoriasis and healthcare professionals thought about this approach. We carried out national surveys of people with psoriasis and healthcare professionals to explore their views on 'as needed' biologic therapy. We also held group interviews to understand in more detail the positive aspects and potential issues with this approach. Overall, we found that an 'as needed' approach was viewed as acceptable by people with psoriasis and healthcare professionals. They thought this approach would reduce the negative impacts of treatment and allow patients to have more ownership of their care. Potential issues included the possibility of patients' psoriasis returning, as well as ensuring that they had access to medication quickly enough when needed. These findings indicate that 'as needed' biologic therapy in psoriasis is acceptable from both a patient and clinician perspective.


Subject(s)
Attitude of Health Personnel , Psoriasis , Humans , Psoriasis/drug therapy , Female , Male , Adult , Middle Aged , Biological Therapy/methods , Patient Acceptance of Health Care/statistics & numerical data , Biological Products/therapeutic use , United Kingdom , Focus Groups , Dermatologists/statistics & numerical data , Aged
3.
J Invest Dermatol ; 143(9): 1708-1716.e4, 2023 09.
Article in English | MEDLINE | ID: mdl-36889663

ABSTRACT

Serum adalimumab concentration is a biomarker of treatment response but therapeutic drug monitoring (TDM) is yet to be implemented in routine psoriasis care. We incorporated adalimumab TDM in a national specialized psoriasis service and evaluated it using the RE-AIM (Reach, Effectiveness, Adoption, Implementation, and Maintenance) implementation science framework. We undertook pre-implementation planning (validating local assays) and implementation interventions targeted to patients (pragmatic sampling at routine reviews), clinicians (introduction of a TDM protocol), and healthcare systems (adalimumab TDM as a key performance indicator). Over 5 months, 170 of 229 (74%) individuals treated with adalimumab received TDM. Clinical improvement after TDM-guided dose escalation occurred in 13 of 15 (87%) nonresponders with serum drug concentrations <8.3 µg/ml (median PASI reduction of 3.2 [interquartile range = 2.2-8.2] after 23.4 weeks) and in all nonresponders who had TDM-guided switch in biologic due to supratherapeutic drug concentrations (>8.3 µg/ml; n = 2) or positive antidrug antibody (n = 2) (PASI reduction of 7.8 [interquartile range = 7.5-12.9] after 20.0 weeks). Proactive TDM led to dose reduction in five individuals with clear skin and subtherapeutic or supratherapeutic drug concentrations; four (80%) sustained clear skin after 50 weeks (range = 42-52). Adalimumab TDM based on pragmatic serum sampling is clinically viable and may lead to patient benefit. Context-specific implementation interventions and systematic implementation assessment may bridge the biomarker research-to-practice gap.


Subject(s)
Drug Monitoring , Psoriasis , Humans , Adalimumab/therapeutic use , Drug Monitoring/methods , Psoriasis/diagnosis , Psoriasis/drug therapy , Remission Induction , Treatment Outcome
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