BACKGROUND: Pharmacists are underused healthcare professionals who are well positioned to provide weight management interventions; however, a systematic review of the literature supporting the role of pharmacists in weight management is lacking.
OBJECTIVES: To conduct a systematic review to assess the body of evidence supporting the role of pharmacists in the management of obesity.
METHODS: A literature search of OVID MEDLINE, Embase (OVID), Web of Science, and CINAHL was conducted from inception through February 23, 2023, to identify studies involving pharmacist interventions for weight management. Included studies were retrospective or prospective studies reporting a change in body weight, body mass index (BMI), or waist circumference as a primary endpoint; and a weight management intervention involving a pharmacist. Studies were excluded if they did not report the desired outcomes, involved pediatric populations, or lacked a pharmacist in the intervention.
RESULTS: Twenty-nine studies met the eligibility criteria. A total of 6,423 study participants were enrolled with a mean BMI of 27 to 46 kg/m2. The included studies were conducted across 8 different countries with 15 from the United States. The primary approach was a pre-post/quasi-experimental study design, typically conducted in community pharmacies. The pharmacists' role varied widely but mainly involved educational counseling as the pharmacist made medication recommendations in only 5 studies. Multidisciplinary collaboration was infrequent. All but 3 studies reported a significant improvement in the weight loss outcome of interest, although most study durations were less than 6 months. A critical appraisal of the 29 studies found the overall quality of the available studies to be relatively poor.
CONCLUSION: Pharmacist interventions for weight management were mostly effective in reducing body weight; however, more robust clinical trials with a comparator group and for longer duration are warranted. The pharmacist's role in managing weight loss medications also requires further study.
OBJECTIVES: To systematically review the effectiveness of community pharmacy-delivered interventions for alcohol reduction, smoking cessation and weight management.
DESIGN: Systematic review and meta-analyses. 10 electronic databases were searched from inception to May 2014.
ELIGIBILITY CRITERIA FOR SELECTING STUDIES: None
STUDY DESIGN: randomised and non-randomised controlled trials; controlled before/after studies, interrupted times series.
INTERVENTION: any relevant intervention set in a community pharmacy, delivered by the pharmacy team. No restrictions on duration, country, age, or language.
RESULTS: 19 studies were included: 2 alcohol reduction, 12 smoking cessation and 5 weight management. Study quality rating: 6 'strong', 4 'moderate' and 9 'weak'. 8 studies were conducted in the UK, 4 in the USA, 2 in Australia, 1 each in 5 other countries. Evidence from 2 alcohol-reduction interventions was limited. Behavioural support and/or nicotine replacement therapy are effective and cost-effective for smoking cessation: pooled OR was 2.56 (95% CI 1.45 to 4.53) for active intervention vs usual care. Pharmacy-based interventions produced similar weight loss compared with active interventions in other primary care settings; however, weight loss was not sustained longer term in a range of primary care and commercial settings compared with control. Pharmacy-based weight management interventions have similar provider costs to those delivered in other primary care settings, which are greater than those delivered by commercial organisations. Very few studies explored if and how sociodemographic or socioeconomic variables moderated intervention effects. Insufficient information was available to examine relationships between effectiveness and behaviour change strategies, implementation factors, or organisation and delivery of interventions.
CONCLUSIONS: Community pharmacy-delivered interventions are effective for smoking cessation, and demonstrate that the pharmacy is a feasible option for weight management interventions. Given the potential reach, effectiveness and associated costs of these interventions, commissioners should consider using community pharmacies to help deliver public health services.
Pharmacists are underused healthcare professionals who are well positioned to provide weight management interventions; however, a systematic review of the literature supporting the role of pharmacists in weight management is lacking.
OBJECTIVES:
To conduct a systematic review to assess the body of evidence supporting the role of pharmacists in the management of obesity.
METHODS:
A literature search of OVID MEDLINE, Embase (OVID), Web of Science, and CINAHL was conducted from inception through February 23, 2023, to identify studies involving pharmacist interventions for weight management. Included studies were retrospective or prospective studies reporting a change in body weight, body mass index (BMI), or waist circumference as a primary endpoint; and a weight management intervention involving a pharmacist. Studies were excluded if they did not report the desired outcomes, involved pediatric populations, or lacked a pharmacist in the intervention.
RESULTS:
Twenty-nine studies met the eligibility criteria. A total of 6,423 study participants were enrolled with a mean BMI of 27 to 46 kg/m2. The included studies were conducted across 8 different countries with 15 from the United States. The primary approach was a pre-post/quasi-experimental study design, typically conducted in community pharmacies. The pharmacists' role varied widely but mainly involved educational counseling as the pharmacist made medication recommendations in only 5 studies. Multidisciplinary collaboration was infrequent. All but 3 studies reported a significant improvement in the weight loss outcome of interest, although most study durations were less than 6 months. A critical appraisal of the 29 studies found the overall quality of the available studies to be relatively poor.
CONCLUSION:
Pharmacist interventions for weight management were mostly effective in reducing body weight; however, more robust clinical trials with a comparator group and for longer duration are warranted. The pharmacist's role in managing weight loss medications also requires further study.
