Dataset Information

Legislative, educational, policy and other interventions targeting physicians' interaction with pharmaceutical companies: a systematic review.

ABSTRACT:

Background

Pharmaceutical company representatives likely influence the prescribing habits and professional behaviour of physicians.

Objective

The objective of this study was to systematically review the effects of interventions targeting practising physicians' interactions with pharmaceutical companies.

Eligibility criteria

We included observational studies, non-randomised controlled trials (non-RCTs) and RCTs evaluating legislative, educational, policy or other interventions targeting the interactions between physicians and pharmaceutical companies.

Data sources

The search strategy included an electronic search of MEDLINE and EMBASE. Two reviewers performed duplicate and independent study selection, data abstraction and assessment of risk of bias.

Appraisal and synthesis methods

We assessed the risk of bias in each included study. We summarised the findings narratively because the nature of the data did not allow a meta-analysis to be conducted. We assessed the quality of evidence by outcome using the GRADE methodology.

Results

Of 11 189 identified citations, one RCT and three observational studies met the eligibility criteria. All four studies specifically targeted one type of interaction with pharmaceutical companies, that is, interactions with drug representatives. The RCT provided moderate quality evidence of no effect of a 'collaborative approach' between the pharmaceutical industry and a health authority. The three observational studies provided low quality evidence suggesting a positive effect of policies aiming to reduce interaction between physicians and pharmaceutical companies (by restricting free samples, promotional material, and meetings with pharmaceutical company representatives) on prescription behaviour.

Limitations

We identified too few studies to allow strong conclusions.

Conclusions

Available evidence suggests a potential impact of policies aiming to reduce interaction between physicians and drug representatives on physicians' prescription behaviour. We found no evidence concerning interventions affecting other types of interaction with pharmaceutical companies.

SUBMITTER: Alkhaled L

PROVIDER: S-EPMC4091460 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature

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Publications

Legislative, educational, policy and other interventions targeting physicians' interaction with pharmaceutical companies: a systematic review.

Alkhaled Lina L Kahale Lara L Nass Hala H Brax Hneine H Fadlallah Racha R Badr Kamal K Akl Elie A EA

BMJ open 20140701 7

<h4>Background</h4>Pharmaceutical company representatives likely influence the prescribing habits and professional behaviour of physicians.<h4>Objective</h4>The objective of this study was to systematically review the effects of interventions targeting practising physicians' interactions with pharmaceutical companies.<h4>Eligibility criteria</h4>We included observational studies, non-randomised controlled trials (non-RCTs) and RCTs evaluating legislative, educational, policy or other interventio ...[more]

PMID: 24989618

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Project description:BackgroundPharmaceutical company representatives likely influence the prescribing habits and professional behaviors of physicians. The objective of this study was to systematically review the association between physicians' interactions with pharmaceutical companies and their clinical practices.MethodsWe used the standard systematic review methodology. Observational and experimental study designs examining any type of targeted interaction between practicing physicians and pharmaceutical companies were eligible. The search strategy included a search of MEDLINE and EMBASE databases up to July 2016. Two reviewers selected studies, abstracted data, and assessed risk of bias in duplicate and independently. We assessed the quality of evidence using the GRADE approach.ResultsTwenty articles reporting on 19 studies met our inclusion criteria. All of these studies were conducted in high-income countries and examined different types of interactions, including detailing, industry-funded continuing medical education, and receiving free gifts. While all included studies assessed prescribing behaviors, four studies also assessed financial outcomes, one assessed physicians' knowledge, and one assessed their beliefs. None of the studies assessed clinical outcomes. Out of the 19 studies, 15 found a consistent association between interactions promoting a medication, and inappropriately increased prescribing rates, lower prescribing quality, and/or increased prescribing costs. The remaining four studies found both associations and lack of significant associations for the different types of exposures and drugs examined in the studies. A meta-analysis of six of these studies found a statistically significant association between exposure and physicians' prescribing behaviors (OR = 2.52; 95% CI 1.82-3.50). The quality of evidence was downgraded to moderate for risk of bias and inconsistency. Sensitivity analysis excluding studies at high risk of bias did not substantially change these results. A subgroup analysis did not find a difference by type of exposure.ConclusionThere is moderate quality evidence that physicians' interactions with pharmaceutical companies are associated with their prescribing patterns and quality.

Project description:BackgroundPharmaceutical companies spent $57.5 billion on pharmaceutical promotion in the United States in 2004. The industry claims that promotion provides scientific and educational information to physicians. While some evidence indicates that promotion may adversely influence prescribing, physicians hold a wide range of views about pharmaceutical promotion. The objective of this review is to examine the relationship between exposure to information from pharmaceutical companies and the quality, quantity, and cost of physicians' prescribing.Methods and findingsWe searched for studies of physicians with prescribing rights who were exposed to information from pharmaceutical companies (promotional or otherwise). Exposures included pharmaceutical sales representative visits, journal advertisements, attendance at pharmaceutical sponsored meetings, mailed information, prescribing software, and participation in sponsored clinical trials. The outcomes measured were quality, quantity, and cost of physicians' prescribing. We searched Medline (1966 to February 2008), International Pharmaceutical Abstracts (1970 to February 2008), Embase (1997 to February 2008), Current Contents (2001 to 2008), and Central (The Cochrane Library Issue 3, 2007) using the search terms developed with an expert librarian. Additionally, we reviewed reference lists and contacted experts and pharmaceutical companies for information. Randomized and observational studies evaluating information from pharmaceutical companies and measures of physicians' prescribing were independently appraised for methodological quality by two authors. Studies were excluded where insufficient study information precluded appraisal. The full text of 255 articles was retrieved from electronic databases (7,185 studies) and other sources (138 studies). Articles were then excluded because they did not fulfil inclusion criteria (179) or quality appraisal criteria (18), leaving 58 included studies with 87 distinct analyses. Data were extracted independently by two authors and a narrative synthesis performed following the MOOSE guidelines. Of the set of studies examining prescribing quality outcomes, five found associations between exposure to pharmaceutical company information and lower quality prescribing, four did not detect an association, and one found associations with lower and higher quality prescribing. 38 included studies found associations between exposure and higher frequency of prescribing and 13 did not detect an association. Five included studies found evidence for association with higher costs, four found no association, and one found an association with lower costs. The narrative synthesis finding of variable results was supported by a meta-analysis of studies of prescribing frequency that found significant heterogeneity. The observational nature of most included studies is the main limitation of this review.ConclusionsWith rare exceptions, studies of exposure to information provided directly by pharmaceutical companies have found associations with higher prescribing frequency, higher costs, or lower prescribing quality or have not found significant associations. We did not find evidence of net improvements in prescribing, but the available literature does not exclude the possibility that prescribing may sometimes be improved. Still, we recommend that practitioners follow the precautionary principle and thus avoid exposure to information from pharmaceutical companies. Please see later in the article for the Editors' Summary.

Project description:BackgroundMarketing by pharmaceutical companies has become an increasingly controversial issue for the medical community and the public. This controversy stems from the potential influence that pharmaceutical companies can wield through marketing on the medical community. This study assesses community physicians' attitudes towards pharmaceutical companies and their representatives to get a better understanding of how their activities affect daily work in community clinics.MethodsA cross-sectional anonymous questionnaire-based study of 170 community physicians in southern Israel was conducted via convenience sampling. The questionnaire was designed to assess physicians' attitudes about the nature of their relationships with representatives of pharmaceutical companies and possible associations with physicians' demographic and professional profiles. The questionnaire was distributed, at weekly staff meetings in the study clinics, to a convenience sample of physicians, who agreed to participate in the study.ResultsMost physicians did not have an extreme attitude on interactions with representatives of pharmaceutical companies. Interestingly, while they thought that pharmaceutical companies play an important role in medical progress, they did express concern regarding the risk of misleading information. While they believed that interactions between physicians and representatives of pharmaceutical companies had a negative effect on the clinic workflow, they were not in favor of prohibiting such interactions. Physicians who graduated from medical schools in Israel held a less sympathetic position towards these interactions.ConclusionThe anticipated heterogeneous attitudes of community-based physicians on interactions with representatives of pharmaceutical companies reflect an inherent complex relationship, with aspects that are specific to the Israeli medical field. Interestingly, physicians trained in other countries than Israel also have divergent attitudes, further affecting the socio-cultural impact on practitioner's attitudes towards this intricate and often politicized topic. Open professional dialogue and targeted educational programs on the physician-pharmaceutical relationship, with more explicit regulation, could potentially ease the discomfort experienced by physicians, especially in the Israeli context and result in a clearer framework of interaction that would leverage the potential advantages while accounting for ethical and regulatory pitfalls.

Project description:BackgroundLegislation is one of the most powerful weapons for improving population health and is often used by policy and decision makers. Little research exists to guide them as to whether legislation is feasible and/or will succeed. We aimed to produce a coherent and transferable evidence based framework of threats to legislative interventions to assist the decision making process and to test this through the 'case study' of legislation to ban smoking in cars carrying children.MethodsWe conceptualised legislative interventions as a complex social interventions and so used the realist synthesis method to systematically review the literature for evidence. 99 articles were found through searches on five electronic databases (MEDLINE, HMIC, EMBASE, PsychINFO, Social Policy and Practice) and iterative purposive searching. Our initial searches sought any studies that contained information on smoking in vehicles carrying children. Throughout the review we continued where needed to search for additional studies of any type that would conceptually contribute to helping build and/or test our framework.ResultsOur framework identified a series of transferable threats to public health legislation. When applied to smoking bans in vehicles; problem misidentification; public support; opposition; and enforcement issues were particularly prominent threats. Our framework enabled us to understand and explain the nature of each threat and to infer the most likely outcome if such legislation were to be proposed in a jurisdiction where no such ban existed. Specifically, the micro-environment of a vehicle can contain highly hazardous levels of second hand smoke. Public support for such legislation is high amongst smokers and non-smokers and their underlying motivations were very similar - wanting to practice the Millian principle of protecting children from harm. Evidence indicated that the tobacco industry was not likely to oppose legislation and arguments that such a law would be 'unenforceable' were unfounded.ConclusionIt is possible to develop a coherent and transferable evidence based framework of the ideas and assumptions behind the threats to legislative intervention that may assist policy and decision makers to analyse and judge if legislation is feasible and/or likely to succeed.

Project description:Importance:Understanding the profitability of pharmaceutical companies is essential to formulating evidence-based policies to reduce drug costs while maintaining the industry's ability to innovate and provide essential medicines. Objective:To compare the profitability of large pharmaceutical companies with other large companies. Design, Setting, and Participants:This cross-sectional study compared the annual profits of 35 large pharmaceutical companies with 357 companies in the S&P 500 Index from 2000 to 2018 using information from annual financial reports. A statistically significant differential profit margin favoring pharmaceutical companies was evidence of greater profitability. Exposures:Large pharmaceutical vs nonpharmaceutical companies. Main Outcomes and Measures:The main outcomes were revenue and 3 measures of annual profit: gross profit (revenue minus the cost of goods sold); earnings before interest, taxes, depreciation, and amortization (EBITDA; pretax profit from core business activities); and net income, also referred to as earnings (difference between all revenues and expenses). Profit measures are described as cumulative for all companies from 2000 to 2018 or annual profit as a fraction of revenue (margin). Results:From 2000 to 2018, 35 large pharmaceutical companies reported cumulative revenue of $11.5 trillion, gross profit of $8.6 trillion, EBITDA of $3.7 trillion, and net income of $1.9 trillion, while 357 S&P 500 companies reported cumulative revenue of $130.5 trillion, gross profit of $42.1 trillion, EBITDA of $22.8 trillion, and net income of $9.4 trillion. In bivariable regression models, the median annual profit margins of pharmaceutical companies were significantly greater than those of S&P 500 companies (gross profit margin: 76.5% vs 37.4%; difference, 39.1% [95% CI, 32.5%-45.7%]; P < .001; EBITDA margin: 29.4% vs 19%; difference, 10.4% [95% CI, 7.1%-13.7%]; P < .001; net income margin: 13.8% vs 7.7%; difference, 6.1% [95% CI, 2.5%-9.7%]; P < .001). The differences were smaller in regression models controlling for company size and year and when considering only companies reporting research and development expense (gross profit margin: difference, 30.5% [95% CI, 20.9%-40.1%]; P < .001; EBITDA margin: difference, 9.2% [95% CI, 5.2%-13.2%]; P < .001; net income margin: difference, 3.6% [95% CI, 0.011%-7.2%]; P = .05). Conclusions and Relevance:From 2000 to 2018, the profitability of large pharmaceutical companies was significantly greater than other large, public companies, but the difference was less pronounced when considering company size, year, or research and development expense. Data on the profitability of large pharmaceutical companies may be relevant to formulating evidence-based policies to make medicines more affordable.

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Dataset Information

Legislative, educational, policy and other interventions targeting physicians' interaction with pharmaceutical companies: a systematic review.

Background

Objective

Eligibility criteria

Data sources

Appraisal and synthesis methods

Results

Limitations

Conclusions

Publications

Legislative, educational, policy and other interventions targeting physicians' interaction with pharmaceutical companies: a systematic review.

Similar Datasets

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