Rob Horne

• BSc, MSc, PhD, FRPharmS
• Professor at University College London

Vaccine hesitancy is a leading threat to public health, but little is known about the beliefs and mindsets that drive vaccine hesitancy, especially among people of Black ethnicities. This study aimed to understand vaccine related beliefs and their relationship with SARS-CoV-2 vaccine uptake in UK residents of Black ethnicities living with HIV. Adul...

Rapid molecular diagnostic tests improve antimicrobial stewardship (AMS) by facilitating earlier refinement of antimicrobial therapy. The INHALE trial tested the application of the BioFire FilmArray Pneumonia Panel (Pneumonia Panel) for antibiotic prescribing for hospital-acquired and ventilator-associated pneumonias (HAP/VAP) in UK intensive care...

Objectives: COVID-19 disproportionately affected people of Black ethnicities whilst also negatively affecting the health, wellbeing and livelihoods of people living with HIV. This may have been amplified by pre-existing socioeconomic marginalisation, poorer health, and structural racism. Despite being disproportionately affected by the pandemic, li...

Background Adherence to pain medication is crucial for cancer patients, since non-adherence can lead to increased suffering, reduced quality of life and increased healthcare costs. Although the five‐item Medication Adherence Report Scale (MARS-5) is a validated tool for assessing medication adherence, but it has not been translated and validated in...

Purpose The aim of this study was to evaluate the validity and reliability of the Turkish version of the Medication Practical Barriers to Adherence Questionnaire (MPRAQ-TR). Methods This is a validation study conducted between August 2022 and March 2023 in the ambulatory services of a secondary care private hospital located in Istanbul, Türkiye, a...

Introduction Despite anti-inflammatory reliever (AIR) therapy now being the preferred treatment choice across all severities of asthma, many patients are still “attached” to their short-acting beta²-agonist (SABA) reliever, believing this to be the best way to control their asthma. To encourage individuals to switch to AIR, it is important to first...

Background Reducing antimicrobial resistance (AMR) is a priority for public health. Inappropriate patient demand is an important driver of unnecessary antibiotic use. To develop an effective intervention to reduce inappropriate demand for antibiotics in upper respiratory tract infections (URTIs), it is important to identify patient perceptions that...

Purpose The aim of this study was to evaluate the feasibility of a community pharmacy-delivered intervention to shift patients’ beliefs about short-acting beta2 agonists (SABA) in asthma management. The study targeted individual beliefs about SABA and assessed actual SABA use, focusing on reducing SABA use as well as adherence to inhaled corticoste...

Background The purpose of this 6-month intervention pilot feasibility randomised trial was to test sending brief messages using mobile phones to promote self-management through taking medication as prescribed to people with type 2 diabetes. This was to inform the design and conduct of a future large-scale United Kingdom-based clinical trial and est...

Introduction Poor adherence to recommended vitamin and mineral supplementation after bariatric surgery is common and challenging for healthcare professionals to identify. There are several questionnaires for self-reporting of adherence to chronic medication, but none has so far been evaluated for assessment of adherence to vitamin and mineral suppl...

Objectives To examine public beliefs about antibiotics, AMR, and knowledge of antibiotic use, and how these relate to self-reported antibiotic use. Methods Two hundred and fifty participants from 23 countries completed a cross-sectional, online survey assessing beliefs about antibiotics and AMR, knowledge of antibiotics, and antibiotic use. Descri...

Background Tuberculosis (TB) has a significant treatment burden for patients, requiring at least six months of anti-TB treatment (ATT) with multiple medicines. Ensuring good adherence to ATT is central to global TB strategies, including those in high-income, low-TB incidence (HILI) settings. For adherence interventions to be successful and delivera...

Background Molecular diagnostic tests may improve antibiotic prescribing by enabling earlier tailoring of antimicrobial therapy. However, clinicians’ trust and acceptance of these tests will determine their application in practice. Objectives To examine ICU prescribers’ views on the application of molecular diagnostics in patients with suspected h...

Gay, bisexual, and other men who have sex with men (GBMSM) experience a high prevalence of psychosocial health problems, such as harmful substance use and depression, as well as being disproportionately affected by HIV. HIV Pre-Exposure Prophylaxis (PrEP) may provide psychosocial benefits beyond its intended purpose of reducing HIV infection. We ex...

Design Investigator-led, prospective, open-labelled marker-based strategy (hybrid) randomised trial. Background Allografts in 3% of kidney transplant patients fail annually. Development of antibodies against human leucocyte antigens is a validated predictive biomarker of allograft failure. Under immunosuppression is recognised to contribute, but w...

Background: Breast cancer is the most common cancer in women worldwide. Approximately 80% of breast cancers are oestrogen receptor positive (ER+). Patients treated surgically are usually recommended adjuvant endocrine therapy (AET) for 5-10 years. AET significantly reduces recurrence, but up to 50% of women do not take it as prescribed. Objective...

Background/Aims In shared decision-making conversations, patients with or at risk of osteoporosis and their clinicians collaborate to decide which drug treatments fit best for each person. The Perceptions and Practicalities Approach (PAPA) specifies three core considerations of drug uptake and commitment: 1) patient’s perceived personal need for tr...

Background 3% of kidney transplant recipients return to dialysis annually upon allograft failure. Development of antibodies (Ab) against human leukocyte antigens (HLA) is a validated prognostic biomarker of allograft failure. We tested whether screening for HLA Ab, combined with an intervention to improve adherence and optimization of immunosuppres...

Medication adherence is a crucial health issue in major depressive disorder (MDD) that requires regular monitoring and attention. Hence, there are multiple reasons for medication non-adherence among them. This study aimed to examine the effect of adherence therapy (AT) on medication adherence, health beliefs, self-efficacy, and depressive symptoms...

Nonadherence to medicines is a global problem compromising health and economic outcomes for individuals and society. This article outlines how adherence is defined and measured, and examines the impact, prevalence and determinants of nonadherence. It also discusses how a psychosocial perspective can inform the development of interventions to optimi...

Introduction and Objectives Treatment for tuberculosis (TB) with multiple, potentially toxic, drugs lasts months but will cure >90% with drug sensitive TB, if taken as prescribed. Non-adherence inevitably occurs, and most methods to improve adherence use medication ‘reminders’ or supervised treatment that may not take into account the broader psych...

Introduction and Objectives Compared to the rest of the UK and Western Europe, England has high rates of tuberculosis (TB). Non-adherence to TB treatment can be detrimental for patients’ health and lead to onward infection. The IMPACT study developed a complex manualised intervention including an enhanced TB needs assessment (TNA) for use in routin...

Systematic reviews that examine effectiveness of interventions to improve medicines optimisation do not explain how or why they work. This realist review identified that interventions which effectively optimise medicines use in osteoporosis include opportunities to address patients’ perceptions of illness and treatment and/or support primary care c...

Background Poor adherence to inhaled corticosteroids (ICS) increases asthma morbidity and mortality, and is influenced by patients’ treatment beliefs. This study maps patient’s beliefs about ICS across six countries examining variations in beliefs, and their relationship with adherence and outcomes. Methods Patients ≥18 years with asthma, receivin...

Introduction The successful scale-up of a latent tuberculosis (TB) infection testing and treatment programme is essential to achieve TB elimination. However, poor adherence compromises its therapeutic effectiveness. Novel rifapentine-based regimens and treatment support based on behavioural science theory may improve treatment adherence and complet...

PrEP is highly effective for HIV prevention but requires adequate adherence. In this paper we use the perceptions and practicalities approach (PAPA) to identify factors that influenced PrEP adherence using qualitative data from the PROUD study. From February 2014 to January 2016, we interviewed 41 gay, bisexual and other men-who-have-sex-with-men a...

Systematic reviews that examine effectiveness of interventions to improve medicines optimisation do not explain how or why they work. This realist review identified that interventions which effectively optimise medicines use in osteoporosis include opportunities to address patients' perceptions of illness and treatment and/or support primary care c...

Background/Aims For two decades, clinicians and academics have been writing about the problem of poor adherence in osteoporosis, while people with osteoporosis have identified a need for more follow up and information about medicines. We aimed to understand what works in supporting people with osteoporosis to get the best from their medicines, and...

Medication Adherence Report Scale questionnaire (MARS-5) and the Beliefs about Medication Questionnaire-specific (BMQ-specific) are well known tools to assess adherence to medication and beliefs of chronic patients. However, validated Arabic versions of such questionnaires are lacking. We aim to validate the Arabic versions of BMQ-specific and MARS...

Introduction Electronic adherence monitoring (EAM) is increasingly used to improve adherence. However, there is limited evidence on the effect of EAM in across chronic conditions and on patient acceptability. We aimed to assess the effect of EAM on adherence and clinical outcomes, across all ages and all chronic conditions, and examine acceptabilit...

Background Antipsychotic medication can reduce psychotic symptoms and risk of relapse in people with schizophrenia and related disorders, but it is not always effective and adverse effects can be significant. We know little of patients’ views about continuing or discontinuing antipsychotic treatment. Aims To explore the views of people with schizo...

Background Patients receiving placebo in clinical trials often report side-effects (nocebo effects), but contributing factors are still poorly understood. Purpose Using a sham trial of the cognition-enhancing “smart pill” Modafinil we tested whether medication beliefs and other psychological factors predicted detection and attribution of symptoms...

Background: The benefits of medication optimization are largely uncontroversial but difficult to achieve. Behavior change interventions aiming to optimize prescriber medication-related decisions, which do not forbid any option and that do not significantly change financial incentives, offer a promising way forward. These interventions are often ref...

Introduction: Nonadherence to inhaled corticosteroids (ICSs) in children with asthma leads to significant morbidity and mortality. Few adherence interventions have been effective and little is known about what contributes to intervention effectiveness. This systematic review summarizes the efficacy and the characteristics of effective intervention...

Purpose The main aim was to evaluate the changes in beliefs about immunosuppressants over a 3-year period in patients after kidney transplantation. The second aim was to investigate the relationship between beliefs, medication adherence, and selected clinical outcomes such as graft functioning. Patients and Methods This observational follow-up stu...

Background Changing demographics across the UK has led to general practitioners (GPs) managing increasing numbers of older patients with multi-morbidity and resultant polypharmacy. Through government led initiatives within the National Health Service, an increasing number of GP practices employ pharmacist support. The purpose of this study is to ev...

Fracture Liaison Services are recommended to deliver best practice in secondary fracture prevention. This modified Delphi survey, as part of the iFraP (Improving uptake of Fracture Prevention drug Treatments) study, provides consensus regarding tasks for clinicians in a model Fracture Liaison Service consultation. Purpose The clinical consultation...

Introduction The predictive utility for incident tuberculosis (TB) of the purified protein derivative tuberculin skin test and region of difference 1 (RD1)-based interferon-gamma release assays (IGRA) is comparable; and either is recommended to test for latent TB infection (LTBI). Despite associated high costs of IGRA, sites participating in LTBI s...

Objective To test the feasibility and acceptability of a short-term reminder and incentives intervention in adolescents with low adherence to asthma medications. Methods Mixed-methods feasibility study in a tertiary care clinic. Adolescents recruited to a 24-week programme with three 8-weekly visits, receiving electronic reminders to prompt inhale...

BACKGROUND Type 2 diabetes is a common lifelong condition, affecting over 400 million people worldwide. Use of effective medications and active self-management can reduce the risk of serious complications. However, people often have concerns when starting new medications, and face difficulties in taking their medications regularly. Support provided...

Background: Type 2 diabetes is a common lifelong condition that affects over 400 million people worldwide. The use of effective medications and active self-management can reduce the risk of serious complications. However, people often have concerns when starting new medications and face difficulties in taking their medications regularly. Support p...

Background Hospital-acquired and ventilator-associated pneumonias (HAP and VAP) are common in critical care and can be life-threatening. Rapid microbiological diagnostics, linked to an algorithm to translate their results into antibiotic choices, could simultaneously improve patient outcomes and antimicrobial stewardship. Methods The INHALE Random...

Introduction: Non-adherence to inhaled corticosteroids (ICS) in children with asthma leads to significant morbidity and mortality. Few interventions to improve adherence have been effective and little is known about what contributes to intervention effectiveness. This systematic review summarises the efficacy of these interventions and the characte...

Although tuberculosis (TB) incidence has significantly declined in high-income, low-incidence (HILI) countries, challenges remain in managing TB in vulnerable populations who may struggle to stay on anti-TB treatment (ATT). Factors associated with non-adherence to ATT are well documented; however, adherence is often narrowly conceived as a fixed bi...

Introduction: Adherence to medications is very crucial for an optimized clinical outcome in the management of chronic diseases. Beliefs about medications and other factors can significantly affect adherence to chronic medications. The objective of the present research was to identify the associated factors of adherence to medication in Jordanian pa...

Aim This study reports the development and validation of a new self‐report measure, the Medication Practical barriers to Adherence Questionnaire (MPRAQ), which assesses practical barriers to medication adherence. Methods The MPRAQ comprises 15 statements describing practical barriers. Responses are scored on a 5‐point Likert scale; higher scores i...

The effectiveness of antiretroviral therapy (ART) depends on prompt uptake of treatment and a high level of adherence over the long-term, yet these behaviors are suboptimal. Previous interventions have significantly improved adherence but effect sizes are generally small. The aim of this article is to describe the design and content of an intervent...

Introduction Prevention of fragility fractures, a source of significant economic and personal burden, is hindered by poor uptake of fracture prevention medicines. Enhancing communication of scientific evidence and elicitation of patient medication-related beliefs has the potential to increase patient commitment to treatment. The I mproving uptake o...

Background Rapid molecular diagnostic tests to investigate the microbial aetiology of pneumonias may improve treatment and antimicrobial stewardship in intensive care units (ICUs). Clinicians’ endorsement and uptake of these tests is crucial to maximise engagement; however, adoption may be impeded if users harbour unaddressed concerns or if device...

Background Rapid molecular diagnostic tests to investigate the microbial aetiology of pneumonias may improve treatment and antimicrobial stewardship in intensive care units (ICUs). Clinicians’ endorsement and uptake of these tests is crucial to maximise engagement; however, adoption may be impeded if users harbour unaddressed concerns or if device...

Background Antibiotics are extensively prescribed in intensive care units (ICUs), yet little is known about how antibiotic-related decisions are made in this setting. We explored how beliefs, perceptions and contextual factors influenced ICU clinicians’ antibiotic prescribing. Methods We conducted 4 focus groups and 34 semistructured interviews wi...

BACKGROUND: Improving adherence to anti-TB treatment is a public health priority in high-income, low incidence (HILI) regions. We conducted a scoping review to identify reported determinants of non-adherence in HILI settings.METHODS: Key terms related to TB, treatment and adherence were used to search MEDLINE, EMBASE, Web of Science, PsycINFO and C...

Background and Aims Oral cinacalcet (CIN) and IV-administered etelcalcetide (ETEL) are calcimimetics available for the management of secondary hyperparathyroidism (SHPT) in hemodialysis (HD) patients. This pilot study assessed patient adherence to calcimimetic therapy and calcimimetic preference of nephrologists and nurses based on adapted question...

Objective This study aimed to investigate the relationship between illness perceptions, medication beliefs, and self-reported adherence to inhaled corticosteroid (ICS) therapy in adult Chinese patients with asthma. Methods A cross-sectional survey was conducted in the asthma outpatient clinic of Zhongshan Hospital, Fudan University (Shanghai, Chin...

Background: New cholesterol guidelines highlight more personalized risk assessments and new cholesterol-lowering drugs for people at the highest risk for cardiovascular disease. Adherence due to fear of and lack of trust in medications prevents treatment to provide better health outcomes. Objectives: The aim of our study was to investigate the poss...

Background In patients with asthma, over-reliance and overuse of short-acting beta 2 agonist (SABA) is common and associated with increased morbidity and mortality. Patient beliefs are a key driver of inappropriate reliever use. A recently developed, brief, online intervention has been shown to identify and shift patient beliefs that drive inapprop...

Introduction Up to 50% of patients develop post-thrombotic syndrome (PTS) after an above knee deep vein thrombosis (DVT). The aim of the study was to determine the effect of graduated compression stockings in preventing PTS after DVT. Methods and analysis Pragmatic, UK multicentre randomised trial in adults with first above knee DVT. The standard...

As the world focuses on containing the spread of the coronavirus disease 2019 (COVID-19) and limiting the effects of the pandemic on the global population, care must be taken not to lose sight of existing individual health issues. There is a real risk of creating a ‘post-pandemic double burden of disease’– where the pressures of having to manage ac...

Background: A key driver of antimicrobial resistance (AMR) is patient demand for unnecessary antibiotics, which is driven by patients’ beliefs about antibiotics and AMR. Few interventions have targeted beliefs to reduce inappropriate demand. Objective: To examine whether a brief, online algorithm-based intervention can change beliefs that may lead...

Maintaining adherence to treatment for tuberculosis (TB) is essential if the disease is to be eliminated. As part of formative research to develop an intervention to improve adherence, we documented the lived experiences of adults receiving anti-TB treatment (ATT) in three UK cities and examined how personal, social, and structural circumstances in...

Background: An accurate understanding of dietary supplements (DS) is a prerequisite for informed decisions regarding their intake. However, there is a need for studies on this understanding among the public based on validated research tools. Objective: This study aims to assess the knowledge about DS among Polish internet users with no medical educ...

Objective People with latent tuberculosis infection (LTBI) are required to make complex treatment decisions, which require an understanding of personal risk and associated benefits. However, many people with LTBI in the United Kingdom are at risk of low health literacy and can also experience language barriers, which can affect decision making. Pat...

Background Hospital antimicrobial stewardship (AMS) programmes are multidisciplinary initiatives to optimize antimicrobial use. Most hospitals depend on time-consuming manual audits to monitor clinicians’ prescribing. But much of the information needed could be sourced from electronic health records (EHRs). Objectives To develop an informatics met...

Background Records of medication prescriptions can be used in conjunction with pharmacy dispensing records to investigate the incidence of adherence, which is defined as observing the treatment plans agreed between a patient and their clinician. Using prescribing records alone fails to identify primary non-adherence; medications not being collected...

BACKGROUND Atherosclerotic cardiovascular disease (ASCVD) is the leading cause of mortality in the world. Prevalence is estimated at around 100 million patients worldwide. There is evidence that antiplatelet agents and antihypertensive medication reduce the risk of new vascular events in this population, but treatment adherence is very low. OBJECT...

Background Atherosclerotic cardiovascular disease (ASCVD) is the leading cause of mortality worldwide, with a prevalence of approximately 100 million patients. There is evidence that antiplatelet agents and antihypertensive medications could reduce the risk of new vascular events in this population; however, treatment adherence is very low. An SMS...

Objective To explore the acceptability of different bisphosphonate regimens for the treatment of osteoporosis among patients, clinicians and managers, payers and academics. Design A systematic review of primary qualitative studies. Seven databases were searched from inception to July 2019. Screening, data extraction and quality assessment of full-...

BACKGROUND Having true beliefs about dietary supplements is a prerequisite for informed decision regarding their intake. However, there is a need for studies of the public understanding of dietary supplements based on validated research tools. OBJECTIVE To assess knowledge about dietary supplements in Polish Internet users with no medical educatio...

The goal of this study was to translate the Beliefs about Medicines Questionnaire—Specific (BMQ-Specific) for cholesterol-lowering drugs, into the Hungarian, Slovak, Czech and Polish languages and test their reliability with statistical methods. For this purpose, Cronbach’s alpha, confirmatory and exploratory factor analyses were conducted. The ana...

Asthma preventer medication non-adherence is strongly associated with poor asthma control. One-dimensional measures of adherence may ignore clinically important patterns of medication-taking behavior. We sought to construct a data-driven multi-dimensional typology of medication non-adherence in children with asthma. We analyzed data from an interve...

Objective Psychosocial interventions can reduce cancer‐related fatigue effectively. However, it is still unclear if intervention effects differ across subgroups of patients. These meta‐analyses aimed at evaluating moderator effects of (1) sociodemographic characteristics, (2) clinical characteristics, (3) baseline levels of fatigue and other sympto...

Medication non‐adherence, defined as any deviation from the regimen recommended by their healthcare provider, can increase morbidity, mortality and side effects, while reducing effectiveness. Through studying two respiratory conditions, asthma and tuberculosis (TB), we thoroughly review the current understanding of the measurement and reporting of...

Objective Patients often hold negative perceptions toward biosimilars that can create barriers to their uptake. Physicians also report uncertainty in how best to explain biosimilars. The aim of this study was to measure the effect of differently framed explanations on patients’ perceptions of and willingness to change to a biosimilar in a hypotheti...

(250 words) Background Patient over-reliance on short-acting beta2 agonists (SABA), with concomitant underuse of inhaled corticosteroids (ICS), is associated with poor asthma control and increased risk of asthma attacks. Objective To develop and validate a brief questionnaire to elicit patients’ perceptions of SABA (e.g. belief that asthma is bes...

Aims: This study aimed to develop a questionnaire measure of patients' adherence to medications to elicit patients' report of medication use. The reliability and validity were assessed in patients with hypertension. Additional analyses were performed on other patient groups. Methods: Using a cross‐sectional study design, a 10‐item version of the Me...

Purpose This study evaluated the effects of coping skills training (CST) on symptoms of depression and anxiety in cancer patients, and investigated moderators of the effects. Methods Overall effects and intervention-related moderators were studied in meta-analyses of pooled aggregate data from 38 randomized controlled trials (RCTs). Patient-relate...

Aims This study aimed to establish the psychometric properties of a questionnaire measure of patients' adherence to medications to elicit patients' report of medication use in a variety of clinical samples. The reliability and validity were assessed in patients with hypertension. Additional analyses were performed on other patient groups. Methods...

Introduction Practical adherence barriers (e.g., medication frequency) are generally more amenable to intervention than perceptual barriers (e.g., beliefs). Measures which assess adherence barriers exist, however these tend to measure a mix of factors. There is a need to identify what practical barriers are captured by current measures. Aim To ide...

Background and aims: Interventions to improve adherence to medication may be more effective if tailored to the individual, addressing adherence-related beliefs about treatment and overcoming practical barriers to daily use. We evaluated whether an algorithm, tailoring support to address perceptual and practical barriers to adherence, reduced barri...

Background The Beliefs about Medicines Questionnaire (BMQ) is the leading tool intended to assess the cognitive representation of medication, however, the validated Polish version of the questionnaire is lacking. Aims To adapt the original BMQ tool to the Polish language (BMQ-PL) and to validate it. Materials and methods The BMQ was adapted to Po...

The following file presents the Beliefs about Medicines Questionnaire - Polish version. ©Rob Horne. The original Polish version layout has been preserved. Details about its lexical and psychometric characteristics have been reported in an underlying paper: Karbownik MS, Jankowska-Polańska B, Horne R, Górski KM, Kowalczyk E, Szemraj J. Adaptation a...