Optimal management of asthma in elderly patients: strategies to improve adherence to recommended interventions

Therapeutic Inertia in Prescribing Biologics for Patients with Moderate-to-Severe Asthma: Workshop Summary

Moderate-to-severe asthma represents about a quarter of the nearly 10% of Americans diagnosed with asthma. Many patients with moderate-to-severe asthma have uncontrolled symptoms that lead to exacerbations requiring oral corticosteroids. There are many factors contributing to poor asthma control, including poor adherence to prescribed therapies, the under-prescribing of biologics and therapeutic inertia. We convened an eight-member panel from fields of primary care, pulmonology, immunology, health services and clinical research, behavioral science and pharmaceutical medical affairs, with the goal of identifying contributing factors and solutions to therapeutic inertia with asthma biologics. We used the Capability, Opportunity, and Motivation (COM-B) model to classify patient and provider behavior towards therapeutic inertia. The model incorporates existing behavior theories and is driven by the interaction of capability, opportunity, and motivation. We used a Delphi method to identify and develop six primary solutions: 1) integration of patient-centered outcomes into asthma management practice; 2) provider education about asthma treatment; 3) moderate-to-severe asthma care delivery redesign; 4) harmonized, evidence-based protocol for the management of moderate-to-severe asthma; 5) designated coordinator approach for optimal asthma management; and 6) a case coordination digital support tool. Integration of patient-centered outcomes into asthma management practice and provider education were identified as having the highest potential to impact therapeutic and clinical inertia. The COM-B model is effective in identifying improvement within therapeutic inertia targeting the capabilities, opportunities, and motivations of patients, providers, and payer systems.

A Systematic Review of the Effectiveness of Text Message Reminders on Asthma Medication Adherence

OBJECTIVE

Cell phone text messaging reminders offers the promise of an efficient technology for the management of chronic diseases, such as asthma. This review aims to evaluate the effectiveness of text message reminders in improving medication adherence for asthma compared to usual care.

METHODS

Randomized controlled trials assessing the effect of text message reminders on adherence to asthma medication were identified from PubMed, Medline, Web of Knowledge EBSCOhost, OvidSP, PsycINFO, and Cochrane Central Register of Controlled Trials and Cochran Health Technology Assessment databases. Literature searches were restricted to the English language, and no restrictions were imposed on the year and country of publication.

RESULTS

Five studies that were deemed relevant to the systematic review were identified from the literature search. Findings on whether text message reminders improve medication adherence were mixed. However, the review indicates that text-messaging interventions were effective as a means of addressing forgetfulness by reminding patients to take their medications.

CONCLUSION

This review adds to the body of literature reviewing the effectiveness of emerging technologies in the management of diseases. Despite the fact there is limited evidence across the population of studies to support the effectiveness of text message reminders, such technology represents an important tool to achieve optimal medication adherence among asthmatics.

Characterization and redox mechanism of asthma in the elderly

Asthma is a chronic disease characterized by reversible airflow limitation, coughing, bronchial constriction, and an inflammatory immune response. While asthma has frequently been categorized as emerging in childhood, evidence has begun to reveal that the elderly population is certainly susceptible to late-onset, or even long-standing asthma. Non-atopic asthma, most commonly found in elderly patients is associated with elevated levels of serum and sputum neutrophils and may be more detrimental than atopic asthma. The mortality of asthma is high in the elderly since these patients often possess more severe symptoms than younger populations. The redox mechanisms that mediate inflammatory reactions during asthma have not been thoroughly interpreted in the context of aging. Thus, we review the asthmatic symptoms related to reactive oxygen species (ROS) and reactive nitrogen species (RNS) in seniors. Moreover, immune status in the elderly is weakened in part by immunosenescence, which is broadly defined as the decline in functionality of the immune system that corresponds with increasing age. The effects of immunosenescence on the expression of biomarkers potentially utilized in the clinical diagnosis of asthma remain unclear. It has also been shown that existing asthma treatments are less effective in the elderly. Thus, it is necessary that clinicians approach the diagnosis and treatment of asthmatic senior patients using innovative methods. Asthma in the elderly demands more intentional diagnostic and therapeutic research since it is potentially one of the few causes of mortality and morbidity in the elderly that is largely reversible.

Challenges in the management of severe allergic asthma in the elderly

Little is known about the features of asthma and allergy in the elderly. A significant number of elderly patients with asthma have uncontrolled and severe asthma. This review aims to provide an analysis of the literature on the assessment and phenotype of severe allergic asthma in the elderly. Gaps and pitfalls in diagnostic and therapeutic approaches, as well as management of severe allergic asthma in the elderly, are also discussed.

Predictors of Asthma Control by Stepwise Treatment in Elderly Asthmatic Patients

The geriatric population is increasing, and asthma severity increases with age. We determined the predictors of asthma control, exacerbation, and the factors that affect asthma-specific quality of life (A-QOL) in elderly asthmatic patients. This was a prospective, multicenter, real-life study for 6 months with stepwise pharmacologic treatment based on the Global Initiative for Asthma (GINA) guideline. A total of 296 asthmatic patients aged ≥ 60 yr were recruited from 5 university centers in Korea. The improved-asthma control group was defined as the group of patients who maintained well-controlled or improved disease and the not-improved asthma control group was defined as the remaining patients. Fewer number of medications for comorbidities (2.8 ± 3.3 in the improved vs. 4.5 ± 4.4 in the control) and higher physical functioning (PF) scale (89.8 ± 14.2 in the improved vs. 82.0 ± 16.4 in the control) were significant predictors in the improved-asthma control group (OR = 0.863, P = 0.004 and OR = 1.028, P = 0.018, respectively). An asthma control test (ACT) score of ≤ 19 at baseline was a significant predictor of asthma exacerbation (OR = 3.938, P = 0.048). Asthma duration (F = 5.656, P = 0.018), ACT score (F = 12.237, P = 0.001) at baseline, and the presence of asthma exacerbation (F = 5.565, P = 0.019) were significant determinants of changes in A-QOL. The number of medications for comorbidities and performance status determined by the PF scale may be important parameters for assessing asthma control in elderly asthmatic patients.

Managing older patients with coexistent asthma and chronic obstructive pulmonary disease: diagnostic and therapeutic challenges

Asthma and chronic obstructive pulmonary disease (COPD) are common obstructive airway diseases, especially among older people. These conditions are associated with a significant and increasing disease burden. The diagnosis and management of asthma and COPD in older populations are complex, and consequently clinicians are faced with many therapeutic and diagnostic challenges. Both aging and obstructive airway diseases are associated with complex co-morbidities and these coexisting illnesses confound management. Moreover, the age-related physiological changes that occur in the lungs may lead to airflow limitation, and this may be difficult to distinguish from an active disease state. In practice, management of asthma and COPD is informed by disease-specific clinical practice guidelines; however, most older people with these conditions are excluded from clinical trials that are designed to inform practice, creating major evidence gaps. Furthermore, seldom do clinical practice guidelines consider the complexities of management in older populations. The problems experienced by older people are complex and multifactorial and our approach to management must reflect these challenges. Opportunities exist to improve the management and outcomes for older people with obstructive airway disease and there is an urgent need for clinical trials to test management approaches in this population; current research must consider the challenges and evidence gaps that exist.

Improving medication adherence in chronic obstructive pulmonary disease: a systematic review

Adherence to medication among individuals with chronic obstructive pulmonary disease (COPD) is suboptimal and has negative impacts on survival and health care costs. No systematic review has examined the effectiveness of interventions designed to improve medication adherence. Electronic databases Medline and Cochrane were searched using a combination of MeSH and keywords. Eligible studies were interventions with a primary or secondary aim to improve medication adherence among individuals with COPD published in English. Included studies were assessed for methodological quality using the Effective Practice and Organisation of Care (EPOC) criteria. Of the 1,186 papers identified, seven studies met inclusion criteria. Methodological quality of the studies was variable. Five studies identified effective interventions. Strategies included: brief counselling; monitoring and feedback about inhaler use through electronic medication delivery devices; and multi-component interventions consisting of self-management and care co-ordination delivered by pharmacists and primary care teams. Further research is needed to establish the most effective and cost effective interventions. Special attention should be given to increasing patient sample size and using a common measure of adherence to overcome methodological limitations. Interventions that involve caregivers and target the healthcare provider as well as the patient should be further explored.

AsthmaWise - a field of dreams? The results of an online education program targeting older adults with asthma

OBJECTIVES

The aim of this study was to establish the feasibility and acceptability of an online asthma self-management program developed for older Australians with asthma.

METHODS

AsthmaWise, an internet education self-management program, was piloted for a 3-month period at the beginning of 2012. Participants were recruited using both online and offline strategies and were required to complete surveys, both pre- and post-intervention, in a repeated measures design.

RESULTS

Matched data were collected from 51 participants; the results showed AsthmaWise to be a feasible and acceptable method of delivering asthma education to the target population. Self-reported measures showed an increase in participants' asthma knowledge, asthma control and quality of life. Results from the Perceived Health Web Site Usability Questionnaire (PHWSUQ) showed improvements between usability testing and implementation.

CONCLUSION

The need for asthma self-management education will continue to increase as the population ages and a greater number of older adults are living with asthma. This small pilot study indicates that an online asthma self-management education program can result in improved outcome measures in a target group not normally considered technologically literate.

Insight into older peoples' healthcare experiences with managing COPD, asthma, and asthma-COPD overlap

OBJECTIVE

The aim of this study was to explore older peoples' experiences of asthma or COPD with reference to their journey in the healthcare system.

METHODS

We recruited older patients with a confirmed diagnosis of asthma or COPD and invited them to participate in a qualitative interview. Interviews were conducted with 21 participants. A line-by-line analysis of the interviews was performed and they were coded for common themes.

RESULTS

From the data, six main themes emerged, these were; "limits to being", "being with or without a diagnosis", "not being heard or recognized", "expectation, fears, and hopes", "to medicate or not: the underuse, abuse, and misuse", and "needing to understand more". The findings of these interviews provide an important understanding of the behaviors and healthcare needs of older people with asthma and COPD. Older patients' adherence patterns, desire for person-centeredness, and involvement in shared decisions as well as desire for increased objective assessment are described.

CONCLUSIONS

These findings provide an important understanding of the behaviors and healthcare needs of older people with asthma and COPD, an area that has not been well defined. The knowledge gained about older patients' desire for person--centeredness and involvement in shared decisions, as well as desire for increased objective assessment is essential in improving care.

Asthma in the elderly

As the population increases in age, the diseases of older age will have increasing prevalence and place a greater burden on the health system. Despite asthma being usually considered a disease of younger people, asthma mortality is currently greatest in the over 55 age-group. Symptoms and emergency presentations for health care due to asthma place a great burden on the quality of life of those over age 55 with asthma. Asthma in older people is under-diagnosed due to patient and physiological factors. Medication strategies for asthma have been dominantly derived from younger cohorts so that effective medication strategies have usually not been explored in older people. Older people with asthma are very concerned regarding side effects of medication so that adherence to therapeutic regimes is often poor. In addition physical disability can lead to difficulty in accessing treatment and using inhaler devices. Practical strategies to improve asthma outcomes in older people have been studied infrequently and the goals of self-management suitable for younger age-groups may not be applicable in this group. Consequently, asthma in older people is deserving of further attention both to basic mechanisms of disease, precision in diagnosis and effective therapeutic strategies, including those that involve self-management and device use.

Over-the-counter β2-agonist purchase versus script: a cross-sectional study

BACKGROUND

Purchase of short-acting β(2)-agonist (SABA), but not anti-inflammatory asthma medication, is permitted in Australia without a doctor's prescription. This has been associated with worse asthma outcomes. We sought to compare the asthma outcomes between those purchasing SABA with and without a doctor's prescription.

METHODS

DESIGN

Cross-sectional study, using stratified randomisation of pharmacies.

SETTING

43 pharmacies in Victoria, Australia.

PARTICIPANTS

Up to 10 consecutive adults purchasing β(2)-agonists were recruited from each pharmacy, with 316 adults in total.

OUTCOME MEASURES

Participants underwent spirometry and questionnaires on respiratory health, asthma control, Quality of Life and medication adherence. Asthma severity was determined by GINA medication step. Regression analyses were performed that allowed for clustering by pharmacy.

RESULTS

Of 316 individuals recruited (65% participation rate), 191 (60%) purchased a β(2)-agonist with a prescription. Purchase of SABA without prescription was not associated with worse asthma outcomes or lung function. Mean (±SD) asthma control score (ACQ) was 1.65 ± 1.03; only 63 (20%) had well-controlled asthma (ACQ < 0.75). Anti-inflammatory asthma medication was owned by 188 (60%) of participants, of whom 157 (83%) reported using this in the last 7 days. There was no correlation between medication adherence scores and asthma control. Forty-seven participants (15%) had an FEV(1) below 80% predicted and did not own an anti-inflammatory asthma medication.

CONCLUSION

Purchase of SABA without prescription was not associated with worse asthma outcomes in Australia. Although many patients reported symptoms of asthma, this did not appear to be associated with reported adherence to anti-inflammatory asthma medication.

Unmet needs of older people with asthma: cross-sectional survey

INTRODUCTION

Asthma in older people is a major cause of disease burden in Australia and is projected to increase over the next two decades. Current guidelines for asthma care rely predominantly on studies from younger populations.

METHODS

We undertook a cross-sectional survey of older people with asthma to identify their concerns and their perceived asthma symptom burden. One hundred and ninety-nine people over 55 years of age with asthma were recruited from community pharmacies, in the states of Victoria and NSW, Australia.

RESULTS

One-hundred and twenty (62%) participants reported "perfectly" or "very well controlled" asthma over the past month, and 78% claimed adherence to asthma treatment. Despite this, 105 (55%) reported experiencing moderate to severe symptoms and 58 (30%) moderate to extreme restrictions on their lifestyle in the past month. Exacerbations were also common with over one-third of participants seeking emergency asthma care or requiring oral corticosteroids in the past 12 months. In spite of 80% of participants reporting confidence of how to manage their asthma properly, only 10% said they would call an ambulance or visit an Emergency Department if their asthma was "out of control." Further asthma self-management education was considered desirable by two-thirds. However, those over 65 years preferred less autonomy in decision-making compared to those under 65 years. CONCLUSION. Older people with asthma experience a high symptom burden. A simplified version of our questionnaire could assist GPs, specialists, and asthma educators to identify the individual needs of older patients and to tailor their delivery of asthma care accordingly.

Patient-centered care and its effect on outcomes in the treatment of asthma

Patient-centered care may be pivotal in improving health outcomes for patients with asthma. In addition to increased attention in both research and clinical forums, recent legislation also highlights the importance of patient-centered outcomes research in the Patient Protection and Affordable Care Act. However, whether patient-centered care has been shown to improve outcomes for this population is unclear. To answer this question, we performed a systematic review of the literature that aimed to define current patient-focused management issues, characterize important patient-defined outcomes in asthma control, and identify current and emerging treatments related to patient outcomes and perspectives. We used a parallel search strategy via Medline(®), Cochrane Central Register of Controlled Trials, CINAHL(®) (Cumulative Index to Nursing and Allied Health Literature), and PsycINFO(®), complemented with a reference review of key articles that resulted in a total of 133 articles; 58 were interventions that evaluated the effect on patient-centered outcomes, and 75 were descriptive studies. The majority of intervention studies demonstrated improved patient outcomes (44; "positive" results); none showed true harm (0; "negative"); and the remainder were equivocal (14; "neutral"). Key themes emerged relating to patients' desires for asthma knowledge, preferences for tailored management plans, and simplification of treatment regimens. We also found discordance between physicians and patients regarding patients' needs, beliefs, and expectations about asthma. Although some studies show promise regarding the benefits of patient-focused care, these methods require additional study on feasibility and strategies for implementation in real world settings. Further, it is imperative that future studies must be, themselves, patient-centered (eg, pragmatic comparative effectiveness studies) and applicable to a variety of patient populations and settings. Despite the need for further research, enough evidence exists that supports incorporating a patient-centered approach to asthma management, in order to achieve improved outcomes and patient health.

Asthma in older adults

Asthma in older people is common and is characterised by underdiagnosis and undertreatment. Ageing is associated with unique issues that modify expression, recognition, and treatment of the disease. In particular, asthma and chronic obstructive pulmonary disease (COPD) both overlap and converge in older people. This concurrence, together with absence of precise diagnostic methods, makes diagnosis complex. A multidimensional assessment that addresses airway problems, comorbidities, risk factors, and management skills will draw attention to key needs for intervention. Increased attention to the complications of asthma and obstructive airway disease in older people is needed, specifically to develop effective systems of care, appropriate clinical practice guidelines, and a research agenda that delivers improved health outcomes.

[Asthma among senior adults]

Elderly patients with asthma are a specific group with particular needs. These must be addressed in order to provide appropriate asthma care. Asthma causes higher morbidity and mortality rates among the elderly patients. Older patients often fail or have problems with compliance and self-management due to age-specific factors. Older patients with asthma are often misdiagnosed, due to an impaired patient perception of symptom severity, different opinions of what kind of asthma-control is possible, or not sufficient communication skills. Often the quality of life is impaired by asthma. Improvement in self management skills in a special way may enhance the health status of elderly patients with asthma.