Isabelle Arnet

Effect of drug reminder packaging on medication adherence: a systematic review revealing research gaps

BackgroundThis was a systematic review of the literature in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Evidence mapping was used to reveal the effect of drug reminder packaging on medication adherence, to identify research gaps and to make suggestions for future research.MethodsPubMed, Embase, CINAHL and PsycINFO were searched with an end date of September 2013 using the Medical Subject Headings (MeSH) term ‘medication adherence’ and 20 different search terms for ‘drug reminder packaging’, limited to the English and German languages. Additional references were identified through cross-referencing. All prospective controlled trials with an intervention using drug reminder packaging for patients taking at least one medication without the assistance of a health-care professional were included in the evidence mapping of the effect of drug reminder packaging on adherence and outcomes according to the Economic, Clinical and Humanistic Outcomes (ECHO) model.ResultsA total of 30 studies met the inclusion criteria: 10 randomized controlled trials, 19 controlled clinical trials and 1 cohort study. Drug reminder packaging had a significant effect on at least one adherence parameter in 17 studies (57%). The methodological quality was strong in five studies. Two studies provided complete information. Clear research gaps emerged.ConclusionsOverall, the studies showed a positive effect of drug reminder packaging on adherence and clinical outcomes. However, poor reporting and important gaps like missing humanistic and economic outcomes and neglected safety issues limit the drawing of firm conclusions. Suggestions are made for future research.

Polymedication Electronic Monitoring System (POEMS) – a new technology for measuring adherence

Introduction: Reliable and precise measurement of patient adherence to medications is feasible by incorporating a microcircuitry into pharmaceutical packages of various designs, such that the maneuvers needed to remove a dose of drug are detected, time-stamped, and stored. The principle is called “electronic medication event monitoring” but is currently limited to the monitoring of a single drug therapy. Aim: Our aims were introducing a new technology; a clear, self-adhesive polymer film, with printed loops of conductive wires that can be affixed to multidrug punch cards for the electronic adherence monitoring of multiple medication regimens (Polymedication Electronic Monitoring System, POEMS), and illustrating potential benefits for patient care. We present a preliminary report with one patient experience. Materials and methods: Our illustrative case was supplied with a pre-filled 7-day multiple medication punch card with unit-of-use doses for specific times of the day (six pills in the morning cavity, two pills in the evening cavity, and one pill in case of insomnia in the bedtime cavity), with the new electronic film affixed on it. Results: The intake times over 1 week were extremely skewed (median intake hours at 2:00 pm for the morning doses and at 6:40 pm for the evening doses). After an intervention aimed at optimizing the timing adherence, the morning and evening intake hours became more balanced, with 42.3% of correct dosing intervals (±3 h) for drugs with twice daily intake (vs. 0% before the intervention). Discussion: The electronic monitoring of the entire therapy revealed an intake pattern that would have remained undiscovered with any other device and allowed a personalized intervention to correct an inadequate medication intake behavior. POEMS may guide health professionals when they need to optimize a pharmacotherapy because of suspected insufficient adherence. Further, knowing the intake pattern of the entire pharmacotherapy can elucidate unreached clinical outcome, drug–drug interactions, and drug resistance. In the near future, one could imagine that medication adherence data over the entire therapy plan would be available as soon as the electronic wires are activated, so that a failure to take medication could be detected immediately and intervention could be taken if appropriate.

Dose-dispensing service as an intervention to improve adherence to polymedication

Given the importance of high adherence to long-term pharmacotherapy and the growing need to improve medication adherence, choosing the best intervention represents a challenge for healthcare providers. A dose-dispensing service is defined as the repackaging of solid oral medication into dose-dispensing aids by a healthcare provider, mostly in a community pharmacy or hospital pharmacy, in order to assist patients in the management of their polymedication. The personalized dose-dispensing aid organizes individual oral doses according to their prescribed intake schedule throughout the day and the week. This review aims to describe the pros and cons of different dose-dispensing services and technologies, summarizes current evidence and addresses research gaps.

Adherence counseling during patient contacts in Swiss community pharmacies

Purpose Numerous studies showed the effectiveness of pharmaceutical care in improving medication adherence in primary care patients. However, in daily pharmacy practice, the provision of pharmaceutical care appears to be limited. We aimed at quantifying the content of counseling by community pharmacy staff during patient contacts, especially adherence counseling, and at investigating pharmacist views about their practice of adherence counseling. Patients and methods A Master’s student in Pharmacy observed patient contacts at selected community pharmacies in the region of Basel, Switzerland. Content of counseling was manually ticked on a checklist with predefined themes (administration, dose, effect, and adherence). Pharmacists working in the pharmacy were interviewed on triggers, topics, and barriers in adherence counseling. Results In 20 community pharmacies and during a total of 148.1 hours, 1,866 patient contacts were observed. During the 1,476 patient contacts including the dispensing of one or more medications, counseling was provided to 799 (54.1%) patients; with 735 (49.8%) patients counseled about administration, 362 (24.5%) about dose, 267 (18.1%) about effect, and 99 (6.7%) about adherence. Significantly more patients received counseling when they obtained prescribed versus over-the-counter medication (P=0.002), a new prescription versus a repeat prescription (P<0.001), or when they were served by a pharmacist versus by another staff member (P<0.001). Of the 33 interviewed pharmacists, all except one reported actively approaching patients for adherence counseling. Triggers included medication-related and patient-related factors. The pharmacists named predominantly product-centered topics of adherence counseling. The most cited barriers were rejection of counseling by the patient and lack of time. Conclusion Half of the patients receiving one or more medications were counseled, and only 6.7% of all contacts included adherence counseling. Future studies should clarify how barriers to adherence counseling at the community pharmacy can be overcome.

The 8-item Morisky Medication Adherence Scale translated in German and validated against objective and subjective polypharmacy adherence measures in cardiovascular patients.

RATIONALE, AIMS AND OBJECTIVES To translate in German the 8-item Morisky Medication Adherence Scale (MMAS-8D). To validate it against objective and subjective measures of adherence in cardiovascular patients with polypharmacy. METHODS A standard forward-backward procedure was used to translate the MMAS-8 into German. Validation took place on a convenience sample of ambulatory patients on chronic antiplatelet therapy between June 2010 and June 2011. Objective adherence was obtained from electronically monitored multi-drug punch cards. Internal consistency was assessed using Cronbachs alpha coefficient, construct validity using exploratory factor analyses and correlations between MMAS-8D and related measures. Convergent validity was assessed with a subjective questionnaire about beliefs about medicines (BMQ Specific, two sub-scales). RESULTS A total of 70 patients were included (mean age 65.7 ± 9.9 years; 31.4% women). The mean score of the MMAS-8D was 7.5 (SD 0.8; range 4.5-8). Moderate internal consistency (alpha = 0.31) was observed due to multidimensionality of the scale. Factor analysis yielded four components that accounted for 71.7% of the total variance. Convergent validity was supported by significant correlations with BMQ Necessity (r = 0.31, P < 0.01), BMQ Concerns (r = -0.16, P < 0.05) and with electronic adherence reports (U-values 44 and 471, P < 0.05). Platelet aggregation values were within therapeutic range for 80% of the patients. Blood values of the antiplatelet agent within therapeutic range were associated with a higher MMAS-8D score (U-value 125, P < 0.05). CONCLUSIONS The German MMAS-8 appears to be a reliable instrument to catch medication adherence in cardiovascular patients. It may be useful in patients with chronic therapy for detecting non-adherence.

Pharmaceutical quality of nine generic orlistat products compared with Xenical(r).

Objective: To compare the pharmaceutical quality of Xenical (chemically produced orlistat) with nine generic products, each produced by fermentation processes. Methods: Xenical 120 mg capsules (Roche, Basel, Switzerland) were used as reference material. Generic products were from India, Malaysia, Argentina, Philippines, Uruguay, and Taiwan. Colour, melting temperature, crystalline form, particle size, capsule fill mass, active pharmaceutical ingredient content, amount of impurities, and dissolution were compared. Standard physical and chemical laboratory tests were those developed by Roche for Xenical. Results: All nine generic products failed the Xenical specifications in four or more tests, and two generic products failed in seven tests. A failure common to all generic products was the amount of impurities present, mostly due to different by-products, including side-chain homologues not present in Xenical. Some impurities were unidentified. Two generic products tested failed the dissolution test, one product formed a capsule-shaped agglomerate on storage and resulted in poor (≤15%) dissolution. Six generic products were powder formulations. Conclusions: All tested generic orlistat products were pharmaceutically inferior to Xenical. The high levels of impurities in generic orlistat products are a major safety and tolerability concern.

Proposal of Standardization to Assess Adherence With Medication Records: Methodology Matters

Background: Medication adherence is the process by which patients take their medication as prescribed and is an umbrella term that encompasses all aspects of medication use patterns. Ambiguous terminology has emerged to describe a deviation from prescribed regimen, forcing the European ABC Project to define 3 phases of medication use: initiation, implementation, and discontinuation. However, different measures of medication adherence using medication records are currently available that do not always distinguish between these phases. The literature is lacking standardization and operationalization of the assessment methods. Objective: To propose a harmonization of standards as well as definitions of distinct measures and their operationalization to quantify adherence to medication from medication records. Methods: Group discussions and consensus process among all coauthors. The propositions were generated using the authors’ experiences and views in the field of adherence, informed by theory. Results: The concepts of adherence measures within the new taxonomy were harmonized, and the standards necessary for the operationalization of adherence measures from medication records are proposed. Besides percentages and time-to values, the addition of a dichotomous value for the reinitiation of treatment is proposed. Methodological issues are listed that should be disclosed in studies on adherence. Conclusions: The possible impact of the measures in adherence research is discussed. By doing this, the results of future adherence research should gain in accuracy. Finally, studies will become more transparent, enabling comparison between studies.

Methotrexate intoxication: the Pharmaceutical Care process reveals a critical error

What is known and objectives:  Intoxication with oral low‐dose methotrexate (MTX) is a well‐known and frequent problem, which is often discovered accidently. The major reason is error in the frequency of dosing, mostly of daily instead of weekly intake. We report a case where the critical error was discovered by the community pharmacist during the routine implementation of the Pharmaceutical Care process SOAP while dispensing a new prescription for the patient.

Emergency hormonal contraception in Switzerland: A comparison of the user profile before and three years after deregulation

Objectives To evaluate the time lapse between sexual intercourse and request for emergency hormonal contraception (EHC) from pharmacies and to analyse the profiles of EHC users shortly after deregulation and three years later, assuming EHC became better-known and more easily accessed. Methods Official EHC written assessment forms were collected from pharmacies in Switzerland. Results Written assessment forms from 729 women aged 15–49 years (380 forms pertaining to the 2003 period and 349 for the 2006 period) were collected in 18 pharmacies. Due to the presence of more women aged less than 18, women in Group 2006 were significantly younger than those in Group 2003 (p = 0.014). Nearly one quarter (23.6%) of the women went to a pharmacy for EHC within 6 h of unprotected sexual intercourse. The median access time was 12 h in 2003 and 14 h in 2006 (p < 0.05). Variance analysis showed a relationship between time to access and the contraceptive methods used (p < 0.001) with male condom users going to a pharmacy the earliest after unprotected intercourse, followed by pill users and by women without any contraception. The number of women who did not use any contraception doubled from 2003 to 2006. Conclusions Dispensing EHC through Swiss community pharmacies allows women to seek EHC easily and rapidly after unprotected sex. The observed changes in user profiles do not support the concern regarding enhanced sexually risky behaviour, more frequent use or misuse due to free access to EHC. The findings support a more liberal access to EHC.

Issues around the Prescription of Half Tablets in Northern Switzerland: The Irrational Case of Quetiapine

Background. Prescription of fragmented tablets is useful for individualisation of dose but includes several drawbacks. Although without score lines, the antipsychotic drug quetiapine was in 2011 the most often prescribed 1/2 tablet in discharge prescriptions at the University Hospital in Basel (USB, 671 beds). We aimed at analysing the prescription patterns of split tablets in general and of quetiapine in particular in Switzerland. Methods. All orders of community pharmacies for unit-of-use soft pouch blisters placed at Medifilm AG, the leader company in Switzerland for repackaging into pouch blisters, were analysed. Results. Out of 4,784,999 tablets that were repacked in 2012 in unit-of-use pouch blisters, 8.5% were fragmented, mostly in half (87.6%), and were predominantly psycholeptics (pipamperone 15.8%). Prescription of half quetiapine appears to be a Basel specificity (highest rates of fragments and half quetiapine). Conclusions. Prescription of fragmented tablet is frequent. It represents a safety issue for the patient, and a pharmaceutical care issue for the pharmacist. In ambulatory care, the patients cognitive and physical capacities must be clarified, suitability of the splitting of the tablet must be checked, appropriate aids must be offered, like a pill-splitting device in order to improve accuracy, and safe use of the drug must be ensured.