- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04220554
Improvement of Psoriasis Patients' Adherence to Topical Drugs
Long-term Improvement of Psoriasis Patients' Adherence to Topical Drugs: Testing a Patient-supporting Intervention Delivered by Healthcare Professionals
Psoriasis affects 2-4% of the Western adult population and is a socio-economic burden for patients and society. Topical drugs are recommended as first-line treatment for mild-to-moderate psoriasis, but low adherence is a barrier for treatment success. There is a need for improved patient support for psoriasis patients, which is suggested to improve long-term use of topical drugs.
The project aims to test whether a patient-supporting intervention delivered by healthcare professionals can improve the use of topical drugs. The intervention design is based on experiences with previous adherence-improving studies consisting of digital support by conducting a systematic literature search and holding focus groups with patients as well as healthcare professionals. The intervention consists of shared decision-making with patients, nurses and doctors, frequent consultations, easy access to healthcare professionals through video or in-office consultations and holding patients accountable for taking the medication.
The intervention will be tested in a randomized controlled trial: during a 48 week period, a group of patients (18-85 years of age) diagnosed with mild-to-moderate psoriasis and treated with topical drugs will be randomized to an intervention (n=40) or non-intervention group (n=40). The primary outcome will be severity of psoriasis and secondary outcomes primary adherence (i.e., rate of filled prescriptions) and quality of life.
If the intervention can reduce the severity of psoriasis in a significant manner, there is a potential for a national implementation of the intervention.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Background Psoriasis is a chronic inflammatory skin disease affecting 2-4% of the Western adult population. It is associated with many comorbidities, negatively affects quality of life and is a socioeconomic burden for patients and society. Topical drugs are the recommended first-line treatment for mild-to-moderate psoriasis, but adherence rates are low, which is a barrier for treatment success, resulting in a need for systemic or biological treatments, which are associated with more severe adverse events and are more expensive than topical drugs. However, improved adherence to topical drugs is associated with improved efficacy. That is why there is a need for improving psoriasis patients' adherence to topical drugs.
As a supplement to the introduction of new and advanced technology, there is a need for more studies on how to optimize the available healthcare professionals in dermatology clinics. Since dermatologists are a limited resource, there is a need to study how other healthcare professionals, e.g., hospital nurses and pharmaconomists at the pharmacies, can support psoriasis patients in their use of topical drugs.
Hypothesis
A patient-supporting intervention delivered by dermatologists, dermatology nurses and pharmaconomists significantly reduces psoriasis patients' severity of psoriasis compared to standard patient support.
Aims
The aim of the project is to test whether an individualized patient-supporting intervention delivered to psoriasis patients by dermatologists, nurses and pharmaconomists at a dermatology hospital clinic can: 1) reduce the severity of psoriasis, 2) improve quality of life, and 3) improve adherence to prescribed topical drugs.
Ethical considerations
All participants will be fully informed of the purpose of the study, and the study will be performed in accordance with the ethical principles in the Belmont report.
Materials and methods
The study is an investigator-initiated, single-centre, assessor-blinded, parallel group superiority randomized clinical study. Before inclusion of study participants, the study will be approved by the local regional ethics committee.
We will include patients (18-85 years of age) with milder-to-moderate psoriasis.
Outcomes
Outcome measurements will be either patient-reported or assessor-blinded.
Adherence measurements
Primary adherence: Proportion of filled topical prescriptions.
Secondary adherence:
Amount of medication used according to weight of the remains in the used medication packages. Data will be assessed week 48.
Disease severity measurements
Disease severity will be measured by Lattice-System Physician's Global Assessment (LS-PGA) (15), and the quality of life will be measured by the Dermatology Life Quality Index (DLQI). This data will be assessed at baseline, weeks 12, 24, 36 and 48.
Recruitment
Psoriasis patients who use topical treatments and are referred to the Department of Dermatology at Odense University Hospital will be recruited to the project until there is a sufficient number of participants included (n=100).
Hypothesis and expected number of participants
Our null hypothesis is that there is no difference in reduction of psoriasis between the intervention and non-intervention groups.
The sample size was calculated based on data from a previous project with consumption data for the use of prescribed calcipotriol betamethasone dipropionate cutaneous foam over 4 weeks. We expect an 20% difference in the LS-PGA, power 80%, two-sided significance of 95%, allocation of 1: 1 and an expected dropout rate of 25%. When using an unpaired t-test, the calculation resulted in the inclusion of a sample size consisting of 80 participants.
Blinding and randomization
Blinding of the data assessors: When the data assessor obtains baseline data from the study participants, it will be entered by an electronic data collection tool.
Participants will be allocated 1: 1 to an intervention or non-intervention arm via a computer-generated block randomization. The data assessor will be blinded to the allocation.
Statistics
Analysis of the primary outcome: changes in LS-PGA
Changes in LS-PGA measurements from baseline to weeks 12 and from baseline to weeks 24, 36 and 48 will be compared between the two groups by linear mixed model for longitudinal data. LS-PGA will be presented in box plots. As a sensitivity analysis on LS-PGA, the analysis will be carried out excluding missing data and after 100 times multiple imputations by multivariate normal regression on LS-PGA data, without included covariates in addition to with an imputation including treatment, age, sex and smoking as covariates.
Analysis of secondary outcomes: Changes in DLQI and adherence
Changes in DLQI measurements from baseline to weeks 12, 24, 36 and 48 will be compared between the two groups by linear mixed model for longitudinal data. DLQI will be presented in box plots.
For the analysis of adherence (by filled prescriptions, weight and patient reported), we will dichotomize adherence rate with a selected cut-off of 80%, with adherence rates above 80% considered adherent (a cut-off typically used when studying adherence in chronic diseases) [7, 42]. We will compare the dichotomized adherences by using logistic regression.
The statistical analysis will be conducted by an experienced statistician blinded to the intervention. An interim analysis is not planned.
Discussion
This study will demonstrate whether an individualized, optimized patient support delivered by doctors, nurses and pharmaconomists to dermatological patients can optimize the use of topical treatment, reduce the severity of psoriasis and have socioeconomic benefits compared to standard treatment. If the study shows that individualized and optimized patient support is effective, it is intended for the intervention to be implemented in the clinic. In addition, we will work on implementing the intervention nationally by a translational process.
Results from the study may also be referred to other chronic dermatological disorders. The study may be used methodically as a model for additional research projects investigating medical adherence in other chronic skin diseases.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
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Odense C, Denmark, 5000
- Department of Dermatology and Allergy Centre
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria: Legally competent patients with milder-to-moderate psoriasis
Exclusion Criteria: Incapable patients not diagnosed with psoriasis
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Supportive Care
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Intervention group
Intervention group: All participants will be instructed how to use of the medication according to "the fingertip unit for topical steroids". All participants will be prescribed topical drugs based on shared decision between the prescriber and patient. The topical drugs will be either moderate corticosteroids (clobetasone-17-butyrate or hydrocortisone-17-butyrate), potent corticosteroids (betamethasone-17-valerate and betamethasone, mometasone furoate, fluocinolone acetonide or fluocinonide), very potent corticosteroids (clobetasol propionate), corticosteroids with antimicrobials (betamethasone and clioquinol, betamethasone and fusidic acid or fluocinolone acetonide and clioquinol), corticosteroid with calcipotriol or calcipotriol cream. During the study period, a nurse or pharmaconomist will deliver;
|
Improved support to patients prescribed topical antipsoriatic drugs
|
No Intervention: Non-intervention group
All participants will be instructed how to use of the medication according to "the fingertip unit for topical steroids".
All participants will be prescribed topical drugs based on shared decision between the prescriber and patient.
The topical drugs will be either moderate corticosteroids (clobetasone-17-butyrate or hydrocortisone-17-butyrate), potent corticosteroids (betamethasone-17-valerate and betamethasone, mometasone furoate, fluocinolone acetonide or fluocinonide), very potent corticosteroids (clobetasol propionate), corticosteroids with antimicrobials (betamethasone and clioquinol, betamethasone and fusidic acid or fluocinolone acetonide and clioquinol), corticosteroid with calcipotriol or calcipotriol cream.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Severity of Psoriasis
Time Frame: Change from baseline at week 48
|
Lattice-System Physician's Global Assessment (LS-PGA) (interval scale).
From value 1 (no visible psoriasis) to 8 (severely affected by psoriasis).
|
Change from baseline at week 48
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Secondary Adherence
Time Frame: Week 48
|
Proportion of expected consumed amount of topical drugs. Secondary adherence was calculated by combining measured amount of medication used (determined by the weight of the remains in the used medication packages) per body surface area unit affected. Estimated recommended consumption of medication was 0.5 g per day multiplied by the estimated mean body surface area (BSA) during the whole study period, calculated from BSA measures at baseline and at weeks 12, 24, 36, and 48. |
Week 48
|
Quality of Life (QOL)
Time Frame: Change from baseline to week 48
|
Dermatology Life Quality Index (DLQI) (interval scale).
From value 0 (no impact on quality of life) to 30 (severe impact on quality of life).
|
Change from baseline to week 48
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Mathias T Svendsen, MD, PhD, Odense University Hospital
Publications and helpful links
General Publications
- Svendsen MT, Feldman SR, Moller S, Kongstad LP, Andersen KE. Long-term improvement of psoriasis patients' adherence to topical drugs: testing a patient-supporting intervention delivered by healthcare professionals. Trials. 2021 Oct 25;22(1):742. doi: 10.1186/s13063-021-05707-6.
- Svendsen MT, Feldman SR, Mejldal A, Moller S, Kongstad LP, Andersen KE. Regular support provided by dermatological nurses improves outcomes in patients with psoriasis treated with topical drugs: a randomized controlled trial. Clin Exp Dermatol. 2022 Dec;47(12):2208-2221. doi: 10.1111/ced.15370. Epub 2022 Oct 25.
- Svendsen MT, Andersen KE, Feldman SR, Mejldal A, Moller S, Kongstad LP. An effective patient-supporting intervention for topical treatment of psoriasis is also cost-effective. Clin Exp Dermatol. 2023 Oct 25;48(11):1247-1254. doi: 10.1093/ced/llad272.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- LF-OC-000048
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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