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Maihöfner C, Mallick-Searle T, Vollert J, Kalita P, Sood Sethi V. Review of Challenges in Performing Real-World Evidence Studies for Nonprescription Products. Pragmat Obs Res 2025; 16:7-18. [PMID: 39873007 PMCID: PMC11771160 DOI: 10.2147/por.s504709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2024] [Accepted: 01/07/2025] [Indexed: 01/30/2025] Open
Abstract
In recent years, regulatory authorities have signaled a willingness to consider real-world evidence (RWE) data to support applications for new claims and indications for pharmaceuticals. Historically, RWE studies have been the domain of prescription drugs, driven by the fact that clinical data on patients are routinely captured in medical records, claims databases, registries, etc. However, RWE reports of nonprescription drugs and supplements are relatively sparse due to methodological gaps in this area. The objective of this narrative review is to identify which RWE methodologies have been used to study nonprescription products. A total of 49 articles were included based on literature searches. Label comprehension studies, used to support prescription-to-nonprescription switches, are useful in determining how nonprescription products will be used; however, they provide no actual clinical data. The most common RWE studies of nonprescription products were cross-sectional surveys, which investigated a broad range of indications and were conducted in an array of settings, including online, by phone, point-of-sale (pharmacy), outpatient clinics, and shopping malls. However, while this type of study is effective for identifying use patterns and attitudes in the general population, recall bias limits the ability to collect safety and effectiveness data. Studies of electronic medical records and claims databases are hampered by incomplete or absent capturing of data on nonprescription products. As a result, most RWE studies to date have provided limited useful information. Although case reports and expert opinion should not be discounted, in the absence of other information they provide few actual data. Novel approaches using smartphone apps and artificial intelligence may provide new opportunities to collect RWE for nonprescription products, but these areas of research are in their infancy. Overall, there is a need to develop standards for execution of RWE studies of nonprescription products in terms of endpoints, study design, and study quality.
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Affiliation(s)
- Christian Maihöfner
- Department of Neurology, General Fürth Hospital, University of Erlangen, Fürth, Germany
| | - Theresa Mallick-Searle
- Division of Pain Medicine, Stanford Health Care Pain Management Clinic, Palo Alto, CA, USA
| | - Jan Vollert
- Department of Clinical and Biomedical Sciences, Faculty of Health and Life Sciences, University of Exeter, Exeter, UK
| | - Pranab Kalita
- Global Category Medical Affairs, Haleon Plc, Weybridge, England, UK
| | - Vidhu Sood Sethi
- Global Medical Affairs, GSK Consumer Healthcare Singapore Pte. Ltd, Singapore
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Amador-Fernández N, Benrimoj SI, Olry de Labry Lima A, García-Cárdenas V, Gastelurrutia MÁ, Berger J, Baixauli-Fernández VJ, Climent-Catalá MT, Colomer-Molina V, Martínez-Martínez F. Strengthening patients' triage in community pharmacies: A cluster randomised controlled trial to evaluate the clinical impact of a minor ailment service. PLoS One 2022; 17:e0275252. [PMID: 36282834 PMCID: PMC9595556 DOI: 10.1371/journal.pone.0275252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/30/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Self-perceived minor ailments might conceal other health conditions if patients are not appropriately assisted by health care professionals. The aim of the study was to evaluate the patient-related outcomes of a community pharmacy Minor Ailment Service (MAS) compared to usual pharmacist care (UC). METHODS A cluster randomised controlled trial was conducted over six months in community pharmacy in the province of Valencia (Spain). Patients seeking care or requesting a product for a minor ailments considered in the study (dermatological problems, gastrointestinal disturbance, pain and upper respiratory tract related symptoms) were included. The intervention consisted of a standardised pharmacist-patient consultation guided by a web-based program using co-developed management protocols and patients' educational material. Patients were followed up by phone ten days later. Primary clinical outcomes were appropriate medical referral and modification of direct product request. Secondary outcomes were symptom resolution and reconsultation rates. RESULTS A total of 808 patients (323 MAS and 485 UC) were recruited in 27 pharmacies of 21 municipalities. Patients visiting MAS pharmacies had higher odds for being referred to a physician (OR = 2.343, CI95% = [1.146-4.792]) and higher reconsultation rates (OR = 1.833, CI95% = [1.151-2.919]) compared to UC. No significant differences between groups were observed for modification of direct product request and symptom resolution. CONCLUSIONS The use of management protocols through the MAS strengthened the identification of referral criteria such as red flags in patients suffering minor ailments. These patients with symptoms of minor ailments possibly due to more severe illness were to be referred and evaluated by physicians. Results reinforce that MAS increases safety for those patients consulting in community pharmacy for minor ailments. TRIAL REGISTRATION Trial registration number: ISRCTN17235323. Retrospectively registered 07/05/2021, https://www.isrctn.com/ISRCTN17235323.
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Affiliation(s)
- Noelia Amador-Fernández
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
- Pharmaceutical Care Research Group, University of Granada, Granada, Spain
| | - Shalom I. Benrimoj
- Pharmaceutical Care Research Group, University of Granada, Granada, Spain
| | - Antonio Olry de Labry Lima
- Andalusian School of Public Health, Granada, Spain
- CIBER in Epidemiology and Public Health, Granada, Spain
| | | | | | - Jérôme Berger
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, University of Lausanne, Geneva, Switzerland
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Amador-Fernández N, Benrimoj SI, García-Mochón L, García-Cárdenas V, Dineen-Griffin S, Gastelurrutia MÁ, Gómez-Martínez JC, Colomer-Molina V, Martínez-Martínez F. A cost utility analysis alongside a cluster-randomised trial evaluating a minor ailment service compared to usual care in community pharmacy. BMC Health Serv Res 2021; 21:1253. [PMID: 34798895 PMCID: PMC8605551 DOI: 10.1186/s12913-021-07188-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 10/12/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Minor ailments are "self-limiting conditions which may be diagnosed and managed without a medical intervention". A cluster randomised controlled trial (cRCT) was designed to evaluate the clinical, humanistic and economic outcomes of a Minor Ailment Service (MAS) in community pharmacy (CP) compared with usual care (UC). METHODS The cRCT was conducted for 6 months from December 2017. The pharmacist-patient intervention consisted of a standardised face-to-face consultation on a web-based program using co-developed protocols, pharmacists' training, practice change facilitators and patients' educational material. Patients requesting a non-prescription medication (direct product request) or presenting minor ailments received MAS or UC and were followed-up by telephone 10-days after the consultation. The primary economic outcomes were incremental cost-utility ratio (ICUR) of the service and health related quality of life (HRQoL). Total costs included health system, CPs and patient direct costs: health professionals' consultation time, medication costs, pharmacists' training costs, investment of the pharmacy and consultation costs within the 10 days following the initial consultation. The HRQoL was obtained using the EuroQoL 5D-5L at the time of the consultation and at 10-days follow up. A sensitivity analysis was carried out using bootstrapping. There were two sub-group analyses undertaken, for symptom presentation and direct product requests, to evaluate possible differences. RESULTS A total of 808 patients (323 MAS and 485 UC) were recruited in 27 CPs with 42 pharmacists (20 MAS and 22 UC). 64.7% (n = 523) of patients responded to follow-up after their consultation in CP. MAS patients gained an additional 0.0003 QALYs (p = 0.053). When considering only MAS patients presenting with symptoms, the ICUR was 24,733€/QALY with a 47.4% probability of cost-effectiveness (willingness to pay of 25,000€/QALY). Although when considering patients presenting for a direct product request, MAS was the dominant strategy with a 93.69% probability of cost-effectiveness. CONCLUSIONS Expanding community pharmacists' scope through MAS may benefit health systems. To be fully cost effective, MAS should not only include consultations arising from symptom presentation but also include an oversight of self-selected products by patients. MAS increase patient safety through the appropriate use of non-prescription medication and through the direct referral of patients to GP. TRIAL REGISTRATION ISRCTN, ISRCTN17235323 . Registered 07/05/2021 - Retrospectively registered.
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Affiliation(s)
- Noelia Amador-Fernández
- Pharmaceutical Care Research Group, University of Granada, Campus de Cartuja, Granada, 18071, Spain.
| | - Shalom I Benrimoj
- Pharmaceutical Care Research Group, University of Granada, Campus de Cartuja, Granada, 18071, Spain
| | | | | | - Sarah Dineen-Griffin
- Health Services Management, School of Biomedical Sciences, Charles Sturt University, Bathurst, NSW, 2795, Australia
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Dineen-Griffin S, Benrimoj SI, Rogers K, Williams KA, Garcia-Cardenas V. Cluster randomised controlled trial evaluating the clinical and humanistic impact of a pharmacist-led minor ailment service. BMJ Qual Saf 2020; 29:921-931. [PMID: 32139400 DOI: 10.1136/bmjqs-2019-010608] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/03/2020] [Accepted: 02/17/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND Community pharmacists are well positioned to support patients' minor ailments. The objective was to evaluate the clinical and humanistic impact of a minor ailment service (MAS) in community pharmacy compared with usual pharmacist care (UC). METHODS A cluster randomised controlled trial was conducted. Intervention patients received MAS, which included a consultation with the pharmacist. MAS pharmacists were trained in clinical pathways and communication systems mutually agreed with general practitioners and received monthly support. Control patients received UC. All patients were followed up by telephone at 14 days. Clinical and humanistic impact were defined by primary (appropriate referral rate and appropriate non-prescription medicine rate) and secondary outcomes (clinical product-based intervention rate, referral adherence, symptom resolution, reconsultation and EuroQol EQ-5D visual analogue scale (VAS)). RESULTS Patients (n=894) were recruited from 30 pharmacies and 82% (n=732) responded to follow-up. Patients receiving MAS were 1.5 times more likely to receive an appropriate referral (relative rate (RR)=1.51; 95% CI 1.07 to 2.11; p=0.018) and were five times more likely to adhere to referral, compared with UC (RR=5.08; 95%CI 2.02 to 12.79; p=0.001). MAS patients (94%) achieved symptom resolution or relief at follow-up, while this was 88% with UC (RR=1.06; 95% CI 1 to 1.13; p=0.035). MAS pharmacists were 1.2 times more likely to recommend an appropriate medicine (RR 1.20, 95% CI 1.1 to 1.3; p=0.000) and were 2.6 times more likely to perform a clinical product-based intervention (RR=2.62, 95% CI 1.28 to 5.38; p=0.009), compared with UC. MAS patients had a greater mean difference in VAS at follow-up (4.08; 95% CI 1.23 to 6.87; p=0.004). No difference in reconsultation was observed (RR=0.98; 95% CI 0.75 to 1.28; p=0.89). CONCLUSION The study demonstrates improved clinical and humanistic outcomes with MAS. National implementation is a means to manage minor ailments more effectively in the Australian health system. TRIAL REGISTRATION NUMBER ACTRN12618000286246.
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Affiliation(s)
- Sarah Dineen-Griffin
- Graduate School of Health, University of Technology Sydney, Ultimo, New South Wales, Australia
| | - Shalom I Benrimoj
- Graduate School of Health, University of Technology Sydney, Ultimo, New South Wales, Australia
| | - Kris Rogers
- Graduate School of Health, University of Technology Sydney, Ultimo, New South Wales, Australia
| | - Kylie A Williams
- Graduate School of Health, University of Technology Sydney, Ultimo, New South Wales, Australia
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Dineen-Griffin S, Garcia-Cardenas V, Rogers K, Williams K, Benrimoj SI. Evaluation of a Collaborative Protocolized Approach by Community Pharmacists and General Medical Practitioners for an Australian Minor Ailments Scheme: Protocol for a Cluster Randomized Controlled Trial. JMIR Res Protoc 2019; 8:e13973. [PMID: 31400107 PMCID: PMC6709938 DOI: 10.2196/13973] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 06/21/2019] [Accepted: 06/27/2019] [Indexed: 01/17/2023] Open
Abstract
Background Internationally, governments have been investing in supporting pharmacists to take on an expanded role to support self-care for health system efficiency. There is consistent evidence that minor ailment schemes (MASs) promote efficiencies within the health care system. The cost savings and health outcomes demonstrated in the United Kingdom and Canada open up new opportunities for pharmacists to effect sustainable changes through MAS delivery in Australia. Objective This trial aims to evaluate the clinical, economic, and humanistic impact of an Australian Minor Ailments Service (AMAS) compared with usual pharmacy care in a cluster randomized controlled trial (cRCT) in Western Sydney, Australia. Methods The cRCT design has an intervention group and a control group, comparing individuals receiving a structured intervention (AMAS) with those receiving usual care for specific health ailments. Participants will be community pharmacies, general practices, and patients located in Western Sydney Primary Health Network (WSPHN) region. A total of 30 community pharmacies will be randomly assigned to either intervention or control group. Each will recruit 24 patients, aged 18 years or older, presenting to the pharmacy in person with a symptom-based or product-based request for one of the following ailments: reflux, cough, common cold, headache (tension or migraine), primary dysmenorrhea, or low back pain. Intervention pharmacists will deliver protocolized care to patients using clinical treatment pathways with agreed referral points and collaborative systems boosting clinician-pharmacist communication. Patients recruited in control pharmacies will receive usual care. The coprimary outcomes are rates of appropriate recommendation of nonprescription medicines and rates of appropriate medical referral. Secondary outcomes include self-reported symptom resolution, health services resource utilization, and EuroQoL Visual Analogue Scale. Differences in primary outcomes between groups will be analyzed at the individual patient level accounting for correlation within clusters with generalized estimating equations. The economic impact of the model will be evaluated by cost-utility and cost-effectiveness analysis compared with usual care. Results The study began in July 2018. Thirty community pharmacies were recruited. Pharmacists from the 15 intervention pharmacies were trained. A total of 27 general practices consented. Pharmacy patient recruitment began in August 2018 and was completed on March 31, 2019. Conclusions This study may demonstrate the efficacy of a protocolized intervention to manage minor ailments in the community and will assess the clinical, economic, and humanistic impact of this intervention in Australian pharmacy practice. Pharmacists supporting patient self-care and appropriate self-medication may contribute to greater efficiency of health care resources and integration of self-care in the health system. The proposed model and developed educational content may form the basis of a national MAS service in Australia, using a robust framework for management and referral for common ailments. Trial Registration Australian New Zealand Clinical Trials Registry (ANZCTR) ACTRN12618000286246; http://www.anzctr.org.au/ACTRN12618000286246.aspx International Registered Report Identifier (IRRID) DERR1-10.2196/13973
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Affiliation(s)
| | | | - Kris Rogers
- Graduate School of Health, University of Technology Sydney, Ultimo, Australia
| | - Kylie Williams
- Graduate School of Health, University of Technology Sydney, Ultimo, Australia
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