Scope and Impact of Financial Conflicts of Interest in Biomedical Research: A Systematic Review
Abstract
CONTEXT: Despite increasing awareness about the potential impact of financial conflicts of interest on biomedical research, no comprehensive synthesis of the body of evidence relating to financial conflicts of interest has been performed. OBJECTIVE: To review original, quantitative studies on the extent, impact, and management of financial conflicts of interest in biomedical research. DATA SOURCES: Studies were identified by searching MEDLINE (January 1980-October 2002), the Web of Science citation database, references of articles, letters, commentaries, editorials, and books and by contacting experts. STUDY SELECTION: All English-language studies containing original, quantitative data on financial relationships among industry, scientific investigators, and academic institutions were included. A total of 1664 citations were screened, 144 potentially eligible full articles were retrieved, and 37 studies met our inclusion criteria. DATA EXTRACTION: One investigator (J.E.B.) extracted data from each of the 37 studies. The main outcomes were the prevalence of specific types of industry relationships, the relation between industry sponsorship and study outcome or investigator behavior, and the process for disclosure, review, and management of financial conflicts of interest. DATA SYNTHESIS: Approximately one fourth of investigators have industry affiliations, and roughly two thirds of academic institutions hold equity in start-ups that sponsor research performed at the same institutions. Eight articles, which together evaluated 1140 original studies, assessed the relation between industry sponsorship and outcome in original research. Aggregating the results of these articles showed a statistically significant association between industry sponsorship and pro-industry conclusions (pooled Mantel-Haenszel odds ratio, 3.60; 95% confidence interval, 2.63-4.91). Industry sponsorship was also associated with restrictions on publication and data sharing. The approach to managing financial conflicts varied substantially across academic institutions and peer-reviewed journals. CONCLUSIONS: Financial relationships among industry, scientific investigators, and academic institutions are widespread. Conflicts of interest arising from these ties can influence biomedical research in important ways.
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Several investigations show strong associations between the source of funding and the conclusions of research articles.
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Transparent and reproducible science offers well-established benefits: enhanced research reliability and credibility, increased applicability of results, and reduced bias and waste of resources.
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Reporting funding and conflicts of interest helps prevent bias; reinforces researchers' commitment to conducting research impartially; and enables readers, reviewers, and editors to better assess results by understanding potential external influences.
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From Assessing transparency practices in dental randomized controlled trials (2024) · cites this paper as [13]
Cites
Assessing the quality of reports of randomized clinical trials: Is blinding necessary?
Jadad, A. R., Moore, R. A., Carroll, D., Jenkinson, C., Reynolds, D. J. M., Gavaghan, D. J., & McQuay, H. J. (1996) · Controlled Clinical Trials · doi:10.1016/0197-2456(95)00134-4 · Cited by 17,582 · see citing works
Statistical Aspects of the Analysis of Data From Retrospective Studies of Disease
(1959) · JNCI: Journal of the National Cancer Institute · doi:10.1093/jnci/22.4.719 · Cited by 14,689 · see citing works
Statistical Methods in Cancer Research
Breslow, N. E. (1980) · Cited by 6,695 · see citing works
Systematic Reviews: Synthesis of Best Evidence for Clinical Decisions
Cook, D. J., Mulrow, C. D., & Haynes, R. B. (1997) · Annals of Internal Medicine · doi:10.7326/0003-4819-126-5-199703010-00006 · Cited by 2,184 · see citing works
Response rates to mail surveys published in medical journals
Asch, D. A., Jedrziewski, M. K., & Christakis, N. A. (1997) · Journal of Clinical Epidemiology · doi:10.1016/s0895-4356(97)00126-1 · Cited by 2,110 · see citing works
Best evidence synthesis: An intelligent alternative to meta-analysis
Slavin, R. E. (1995) · Journal of Clinical Epidemiology · doi:10.1016/0895-4356(94)00097-a · Cited by 951 · see citing works
Temple, R., & Ellenberg, S. S. (2000) · Annals of Internal Medicine · doi:10.7326/0003-4819-133-6-200009190-00014 · Cited by 871 · see citing works
Understanding Financial Conflicts of Interest
Thompson, D. F. (1993) · New England Journal of Medicine · doi:10.1056/nejm199308193290812 · Cited by 861 · see citing works
Uneasy alliance—clinical investigators and the pharmaceutical industry
Bodenheimer, T. (2000) · New England Journal of Medicine · doi:10.1056/nejm200005183422024 · Cited by 765 · cited 2× · see citing works
“For-profit contract research organizations now consume more than 60% of clinical research funding from industry, leveraging their ability to complete trials more rapidly and less expensively than academic institutions.(8) In addition, management of financial interests at the institutional level is particularly challen…”
The Continuing Unethical Use of Placebo Controls
Rothman, K. J., & Michels, K. B. (1994) · New England Journal of Medicine · doi:10.1056/nejm199408113310611 · Cited by 669 · see citing works
Conflict of Interest in the Debate over Calcium-Channel Antagonists
Stelfox, H. T., Chua, G., O'Rourke, K., & Detsky, A. S. (1998) · New England Journal of Medicine · doi:10.1056/nejm199801083380206 · Cited by 615 · see citing works
Withholding Research Results in Academic Life Science
Blumenthal, D. (1997) · JAMA · doi:10.1001/jama.1997.03540390054035 · Cited by 581 · see citing works
Gouze, J.-N., Bordji, K., Gulberti, S., Terlain, B. L., Netter, P., Magdalou, J., Fournel‐Gigleux, S., & Ouzzine, M. (2006) · Arthritis & Rheumatism · doi:10.1002/(issn)1529-0131 · Cited by 530 · see citing works
Data Withholding in Academic Genetics
Campbell, E. G., Clarridge, B. R., Gokhale, M., Birenbaum, L., Hilgartner, S., Holtzman, N. A., & Blumenthal, D. (2002) · JAMA · doi:10.1001/jama.287.4.473 · Cited by 490 · see citing works
The uncertainty principle and industry-sponsored research
Djulbegović, B., Lacevic, M., Cantor, A. B., Fields, K. K., Bennett, C. L., Adams, J. R., Kuderer, N. M., & Lyman, G. H. (2000) · The Lancet · doi:10.1016/s0140-6736(00)02605-2 · Cited by 484 · see citing works
Evaluation of Conflict of Interest in Economic Analyses of New Drugs Used in Oncology
Friedberg, M. W. (1999) · JAMA · doi:10.1001/jama.282.15.1453 · Cited by 477 · see citing works
Robins, J. M., Breslow, N. E., & Greenland, S. (1986) · Biometrics · doi:10.2307/2531052 · Cited by 476 · see citing works
Participation of Life-Science Faculty in Research Relationships with Industry
Blumenthal, D., Campbell, E. G., Causino, N., & Louis, K. S. (1996) · New England Journal of Medicine · doi:10.1056/nejm199612053352305 · Cited by 461 · see citing works
Why review articles on the health effects of passive smoking reach different conclusions
Barnes, D. E. (1998) · JAMA · doi:10.1001/jama.279.19.1566 · Cited by 442 · see citing works
Kjaergard, L. L., & Als-Nielsen, B. (2002) · BMJ · doi:10.1136/bmj.325.7358.249 · Cited by 422 · see citing works
Relationships between Academic Institutions and Industry in the Life Sciences — An Industry Survey
Blumenthal, D., Causino, N., Campbell, E. G., & Louis, K. S. (1996) · New England Journal of Medicine · doi:10.1056/nejm199602083340606 · Cited by 402 · see citing works
Source of funding and outcome of clinical trials
Davidson, R. A. (1986) · Journal of General Internal Medicine · doi:10.1007/bf02602327 · Cited by 397 · see citing works
The Quality of Drug Studies Published in Symposium Proceedings
Cho, M. K., & Bero, L. A. (1996) · Annals of Internal Medicine · doi:10.7326/0003-4819-124-5-199603010-00004 · Cited by 334 · see citing works
University-Industry Research Relationships in Biotechnology: Implications for the University
Blumenthal, D., Gluck, M. E., Louis, K. S., Stoto, . A., & Wise, D. A. (1986) · Science · doi:10.1126/science.3715452 · Cited by 328 · see citing works
Rochon, P. A. (1994) · Archives of Internal Medicine · doi:10.1001/archinte.1994.00420020059007 · Cited by 288 · see citing works
Rochon, P. A. (1994) · Archives of Internal Medicine · doi:10.1001/archinte.154.2.157 · Cited by 275 · see citing works
Gart, J. J. (1971) · Revue de l Institut International de Statistique / Review of the International Statistical Institute · doi:10.2307/1402171 · Cited by 270 · see citing works
Schenker, S., Perkins, H. S., & Sorrell, M. F. (2006) · Hepatology · doi:10.1002/(issn)1527-3350 · Cited by 262 · see citing works
Managing Conflicts of Interest in the Conduct of Clinical Trials
Morin, K. (2002) · JAMA · doi:10.1001/jama.287.1.78 · Cited by 235 · see citing works
Policies on Faculty Conflicts of Interest at US Universities
Cho, M. K. (2000) · JAMA · doi:10.1001/jama.284.17.2203 · Cited by 227 · see citing works
Influences on the Quality of Published Drug Studies
Bero, L. A., & Rennie, D. (1996) · International Journal of Technology Assessment in Health Care · doi:10.1017/s0266462300009582 · Cited by 226 · see citing works
Press, E., & Washburn, J. (2017) · Routledge eBooks · doi:10.4324/9781315263465-15 · Cited by 226 · see citing works
Sponsorship, Authorship, and Accountability
Davidoff, F. (2001) · JAMA · doi:10.1001/jama.286.10.1232 · Cited by 204 · see citing works
How Consumers and Policymakers Can Use Systematic Reviews for Decision Making
Bero, L. A., & Jadad, A. R. (1997) · Annals of Internal Medicine · doi:10.7326/0003-4819-127-1-199707010-00007 · Cited by 198 · see citing works
A national survey of policies on disclosure of conflicts of interest in biomedical research.
van McCrary, S., Anderson, C. B., Jakovljević, J., Khan, T., McCullough, L., Wray, N., & Brody, B. (2000) · New England Journal of Medicine · doi:10.1056/nejm200011303432207 · Cited by 194 · see citing works
Krimsky, S., & Rothenberg, L. S. (2001) · Science and Engineering Ethics · doi:10.1007/s11948-001-0041-7 · Cited by 191 · see citing works
Protecting Research Subjects — What Must Be Done
Shalala, D. E. (2000) · New England Journal of Medicine · doi:10.1056/nejm200009143431112 · Cited by 190 · see citing works
Conflict-of-interest policies for investigators in clinical trials.
Lo, B., Wolf, L. E., & Berkeley, A. (2000) · New England Journal of Medicine · doi:10.1056/nejm200011303432206 · Cited by 181 · see citing works
Schulman, K., Seils, D. M., Timbie, J. W., Sugarman, J., Dame, L., Weinfurt, K., Mark, D., & Califf, R. (2002) · New England Journal of Medicine · doi:10.1056/nejmsa020349 · Cited by 176 · see citing works
Campbell, E. G., Weissman, J. S., Causino, N., et al. (2000) · Research Policy · doi:10.1016/s0048-7333(99)00068-2 · Cited by 171 · see citing works
Nonfinancial Conflicts of Interest in Research
Levinsky, N. G. (2002) · New England Journal of Medicine · doi:10.1056/nejmsb020853 · Cited by 169 · see citing works
The Publication of Sponsored Symposiums in Medical Journals
Bero, L. A., Galbraith, A. A., & Rennie, D. (1992) · New England Journal of Medicine · doi:10.1056/nejm199210153271606 · Cited by 167 · see citing works
Conflicts of Interest in Biomedical Research
Korn, D. A. (2000) · JAMA · doi:10.1001/jama.284.17.2234 · Cited by 163 · see citing works
Industrial Support of University Research in Biotechnology
Blumenthal, D., Gluck, M. E., Louis, K. S., et al. (1986) · Science · doi:10.1126/science.3941897 · Cited by 161 · see citing works
Yaphe, J., Edman, R., Knishkowy, B., & Herman, J. M. (2001) · Family Practice · doi:10.1093/fampra/18.6.565 · Cited by 156 · see citing works
Rochon, P. A. (1994) · JAMA · doi:10.1001/jama.1994.03520020034009 · Cited by 153 · see citing works
Fair Conduct and Fair Reporting of Clinical Trials
Rennie, D. (1999) · JAMA · doi:10.1001/jama.282.18.1766 · Cited by 149 · see citing works
Deangelis, C., Fontanarosa, P., & Flanagin, A. (2001) · Journal of the American Medical Association (JAMA) · doi:10.1001/jama.286.1.89 · Cited by 140 · see citing works
Assessing faculty financial relationships with industry: A case study.
Boyd, E. A., & Bero, L. (2000) · Journal of the American Medical Association (JAMA) · doi:10.1001/jama.284.17.2209 · Cited by 139 · see citing works
Rennie, D. (1997) · JAMA · doi:10.1001/jama.1997.03540390068038 · Cited by 137 · see citing works
Medical innovation and institutional interdependence: rethinking university-industry connections.
Gelijns, A. C., & Thier, S. O. (2002) · PubMed · doi:10.1001/jama.287.1.72 · Cited by 136 · see citing works
Academic Relationships With Industry
Moses, H., & Martin, J. B. (2001) · JAMA · doi:10.1001/jama.285.7.933 · Cited by 133 · see citing works
Integrating Heterogeneous Pieces of Evidence in Systematic Reviews
Mulrow, C. D., Langhorne, P., & Grimshaw, J. (1997) · Annals of Internal Medicine · doi:10.7326/0003-4819-127-11-199712010-00008 · Cited by 132 · see citing works
Problems in the Design and Reporting of Trials of Antifungal Agents Encountered During Meta-analysis
Johansen, H. K. (1999) · JAMA · doi:10.1001/jama.282.18.1752 · Cited by 128 · see citing works
The Industrialization Of Clinical Research
Rettig, R. A. (2000) · Health Affairs · doi:10.1377/hlthaff.19.2.129 · Cited by 128 · see citing works
Ethical issues in the design and conduct of randomised controlled trials.
Edwards, Lilford, Braunholtz, et al. (1998) · Health Technology Assessment · doi:10.3310/hta2150 · Cited by 124 · see citing works
PhysicianIndustry Relations. Part 1: Individual Physicians
Coyle, S. (2002) · Annals of Internal Medicine · doi:10.7326/0003-4819-136-5-200203050-00014 · Cited by 122 · see citing works
Statistical methods in cancer research
Gardner, B. (2001) · Journal of Surgical Oncology · doi:10.1002/jso.1170.abs · Cited by 122 · see citing works
Institutional Conflict of Interest
Emanuel, E. J., & Steiner, D. (1995) · New England Journal of Medicine · doi:10.1056/nejm199501263320412 · Cited by 117 · see citing works
Randomized clinical trials in Hepatology: Predictors of quality
Gluud, L. L., Nikolova, D., & Gluud, C. N. (1999) · Hepatology · doi:10.1002/hep.510300510 · Cited by 115 · see citing works
Looking a Gift Horse in the Mouth
Campbell, E. G., Louis, K. S., & Blumenthal, D. (1998) · JAMA · doi:10.1001/jama.279.13.995 · Cited by 110 · see citing works
Financial Conflicts of Interest in Biomedical Research
Kassirer, J. P., & Angell, M. E. (1993) · New England Journal of Medicine · doi:10.1056/nejm199308193290810 · Cited by 109 · see citing works
Comparing benefits and harms: the balance sheet
Eddy, D. M. (1990) · JAMA · doi:10.1001/jama.263.18.2493 · Cited by 108 · see citing works
Scientific Journals and Their Authors’ Financial Interests: A Pilot Study
Krimsky, S., Rothenberg, L. S., Stott, P. A., & Kyle, G. (1998) · Psychotherapy and Psychosomatics · doi:10.1159/000012281 · Cited by 107 · see citing works
Physician–Industry Relations. Part 2: Organizational Issues
Coyle, S. L. (2002) · Annals of Internal Medicine · doi:10.7326/0003-4819-136-5-200203050-00015 · Cited by 101 · see citing works
Academic-Corporate Ties in Biotechnology: A Quantitative Study
Krimsky, S., Ennis, J. G., & Weissman, R. (1991) · Science Technology & Human Values · doi:10.1177/016224399101600301 · Cited by 101 · see citing works
Better Access to Information about Clinical Trials
McCray, A. T. (2000) · Annals of Internal Medicine · doi:10.7326/0003-4819-133-8-200010170-00013 · Cited by 99 · see citing works
Comparing Benefits and Harms: The Balance Sheet
Eddy, D. M. (1990) · JAMA · doi:10.1001/jama.1990.03440180103043 · Cited by 74 · see citing works
Declaring financial competing interests: survey of five general medical journals
Hussain, A., & Smith, R. W. (2001) · BMJ · doi:10.1136/bmj.323.7307.263 · Cited by 67 · see citing works
Trust us to make a difference: ensuring public confidence in the integrity of clinical research.
Cohen, J. J. (2001) · Academic medicine : journal of the Association of American Medical Colleges · doi:10.1097/00001888-200102000-00028 · Cited by 54 · see citing works
Growing Pains for New Academic/Industry Relationships
Blumenthal, D. (1994) · Health Affairs · doi:10.1377/hlthaff.13.3.176 · Cited by 50 · see citing works
Topol, E. J., Armstrong, P. W., de Werf, F. V., Kleiman, N. S., Lee, K. L., Morris, D. L., Simoons, M. L., Barbash, G. I., White, H. D., & Califf, R. M. (1992) · Journal of the American College of Cardiology · doi:10.1016/0735-1097(92)90312-b · Cited by 49 · see citing works
HEALY, B. P., CAMPEAU, L. A., Gray, R. J., Herd, J. A., Hoogwerf, B. J., Hunninghake, D. B., Knatterud, G. L., Stewart, W. J., & White, C. W. (1989) · New England Journal of Medicine · doi:10.1056/nejm198904063201432 · Cited by 48 · see citing works
Knox, K. S., Adams, J. R., Djulbegović, B., Stinson, T. J., Tomori, C., & Bennet, C. L. (2000) · Annals of Oncology · doi:10.1023/a:1008309817708 · Cited by 48 · see citing works
Time to register randomised trials
Horton, R. C., & Smith, R. W. (1999) · The Lancet · doi:10.1016/s0140-6736(99)00328-1 · Cited by 45 · see citing works
Reports of Randomized Trials in Acute Stroke, 1955 to 1995
Dorman, P. J., Counsell, C. E., & Sandercock, P. A. (1999) · Stroke · doi:10.1161/01.str.30.10.1995 · Cited by 43 · see citing works
Academic-industry research relationships in genetics: A field apart
Blumenthal, D., Causino, N., & Campbell, E. G. (1997) · Nature Genetics · doi:10.1038/ng0597-104 · Cited by 36 · see citing works
Turner, C., & Spilich, G. J. (1997) · Addiction · doi:10.1111/j.1360-0443.1997.tb02863.x · Cited by 29 · see citing works
Influence of design characteristics on the outcome of retrospective cohort studies.
Swaen, G. M. H., & Meijers, J. M. M. (1988) · Occupational and Environmental Medicine · doi:10.1136/oem.45.9.624 · Cited by 27 · see citing works
Secular Changes in Published Clinical Trials of Second‐Line Agents in Rheumatoid Arthritis
Anderson, J. J., Felson, D. T., & Meenan, R. F. (1991) · Arthritis & Rheumatism · doi:10.1002/art.1780341015 · Cited by 27 · see citing works
Kassirer, J. P. (2001) · Annals of Internal Medicine · doi:10.7326/0003-4819-134-7-200104030-00012 · Cited by 23 · see citing works
Rabino, I. (1998) · Die Naturwissenschaften · doi:10.1007/s001140050464 · Cited by 16 · see citing works
Autm Licensing Survey: Fy 2003 Survey SummaryPreprint
Stevens, A. J., & Toneguzzo, F. (2004) · SSRN Electronic Journal · Cited by 14 · see citing works
Berk, P. D., & Sacks, H. S. (1999) · Hepatology · doi:10.1002/hep.510300532 · Cited by 11 · see citing works
A hospital's conflict of interest: patients weren't told of stake in cancer drug.
Gillis, J. (2002) · PubMed · Cited by 8 · see citing works
Influence of design characteristics on the outcome of retrospective cohort studies.
Teta, M. J. (1989) · Occupational and Environmental Medicine · doi:10.1136/oem.46.8.591 · Cited by 7 · see citing works
Flagged first, then by citations
Cited by
Sorted by citations
Vandenbroucke, J. P., von Elm, E., Altman, D. G., Gøtzsche, P. C., Mulrow, C. D., Pocock, S. J., Poole, C., Schlesselman, J. J., Egger, M., & Initiative, F. T. S. (2007) · PLoS Medicine · doi:10.1371/journal.pmed.0040297 · Cited by 8,613 · see citing works
SPIRIT 2013 explanation and elaboration: guidance for protocols of clinical trials
Chan, A.-W., Tetzlaff, J. M., Gotzsche, P. C., Altman, D. G., Mann, H., Berlin, J. A., Dickersin, K., Hrobjartsson, A., Schulz, K. F., Parulekar, W. R., et al. (2013) · BMJ · doi:10.1136/bmj.e7586 · Cited by 6,251 · see citing works
Vandenbroucke, J. P., Elm, E. V., Altman, D. G., Gøtzsche, P. C., Mulrow, C. D., Pocock, S. J., Poole, C., Schlesselman, J. J., Egger, M., & initiative, F. T. S. (2007) · Annals of Internal Medicine · doi:10.7326/0003-4819-147-8-200710160-00010-w1 · Cited by 3,543 · see citing works
Vandenbroucke, J. P., von Elm, E., Altman, D. G., Gøtzsche, P. C., Mulrow, C. D., Pocock, S. J., Poole, C., Schlesselman, J. J., & Egger, M. (2014) · International Journal of Surgery · doi:10.1016/j.ijsu.2014.07.014 · Cited by 2,969 · see citing works
Vandenbroucke, J. P., von Elm, E., Altman, D. G., Gøtzsche, P. C., Mulrow, C. D., Pocock, S. J., Poole, C., Schlesselman, J. J., & Egger, M. (2007) · Epidemiology · doi:10.1097/ede.0b013e3181577511 · Cited by 2,779 · see citing works
Pharmaceutical industry sponsorship and research outcome and quality: systematic review
Lexchin, J., Bero, L. A., Djulbegovic, B., & Clark, O. (2003) · BMJ · doi:10.1136/bmj.326.7400.1167 · Cited by 2,147 · see citing works
Fanelli, D. (2009) · PLoS ONE · doi:10.1371/journal.pone.0005738 · Cited by 1,911 · see citing works
“This would support growing fears that the large financial interests that often drive medical research are severely biasing it [50], [51], [52].”
BackgroundEFNS guidelines on the pharmacological treatment of neuropathic pain: 2010 revision
Attal, N., Cruccu, G., Baron, R., Haanpää, M., Hansson, P., Jensen, T. S., & Nurmikko, T. (2010) · European Journal of Neurology · doi:10.1111/j.1468-1331.2010.02999.x · Cited by 1,873 · see citing works
Effects of soft drink consumption on nutrition and health: a systematic review and meta-analysis
Vartanian, L. R., Schwartz, M. B., & Brownell, K. D. (2007) · American Journal of Public Health · doi:10.2105/ajph.2005.083782 · Cited by 1,863 · see citing works
Cipriani, A., Furukawa, T. A., Salanti, G., Geddes, J. R., Higgins, J. P., Churchill, R., Watanabe, N., Nakagawa, A., Omori, I. M., McGuire, H., et al. (2009) · The Lancet · doi:10.1016/s0140-6736(09)60046-5 · Cited by 1,654 · see citing works
Industry sponsorship and research outcome
Lundh, A., Lexchin, J., Mintzes, B., Schroll, J. B., & Bero, L. (2017) · Cochrane Database of Systematic Reviews · doi:10.1002/14651858.mr000033.pub3 · Cited by 1,697 · see citing works
Reducing waste from incomplete or unusable reports of biomedical research
Glasziou, P., Altman, D. G., Bossuyt, P., Boutron, I., Clarke, M., Julious, S., Michie, S., Moher, D., & Wager, E. (2014) · The Lancet · doi:10.1016/s0140-6736(13)62228-x · Cited by 1,319 · see citing works
Do “brain-training” programs work?
Simons, D. J., Boot, W. R., Charness, N., Gathercole, S. E., Chabris, C. F., Hambrick, D. Z., & Stine-Morrow, E. A. L. (2016) · Psychological Science in the Public Interest · doi:10.1177/1529100616661983 · Cited by 1,183 · see citing works
Do Pressures to Publish Increase Scientists' Bias? An Empirical Support from US States Data
Fanelli, D. (2010) · PLoS ONE · doi:10.1371/journal.pone.0010271 · Cited by 805 · see citing works
Nicotine receptor partial agonists for smoking cessation
Cahill, K., Stead, L., & Lancaster, T. (2007) · Cochrane Database of Systematic Reviews · doi:10.1002/14651858.cd006103.pub2 · Cited by 747 · see citing works
Als-Nielsen, B., Chen, W., Gluud, C., & Kjaergard, L. L. (2003) · JAMA · doi:10.1001/jama.290.7.921 · Cited by 746 · see citing works
Tricyclic antidepressant pharmacology and therapeutic drug interactions updated
Gillman, P. K. (2007) · British Journal of Pharmacology · doi:10.1038/sj.bjp.0707253 · Cited by 694 · see citing works
Bias in clinical intervention research.
Gluud, L. L. (2006) · American Journal of Epidemiology · doi:10.1093/aje/kwj069 · Cited by 636 · see citing works
Jarde, A., Morais, M., Kingston, D., Giallo, R., MacQueen, G. M., Giglia, L., Beyene, J., Wang, Y., & McDonald, S. D. (2016) · JAMA Psychiatry · doi:10.1001/jamapsychiatry.2016.0934 · Cited by 616 · see citing works
Biomedicalization: Technoscientific Transformations of Health, Illness, and U.S. Biomedicine
Clarke, A. E., Shim, J. K., Mamo, L., Fosket, J. R., & Fishman, J. R. (2003) · American Sociological Review · doi:10.1177/000312240306800201 · Cited by 560 · see citing works
Dickersin, K. (2003) · JAMA · doi:10.1001/jama.290.4.516 · Cited by 512 · see citing works
Acid-suppressive medication use and the risk for hospital-acquired pneumonia
Herzig, S. J. (2009) · JAMA · doi:10.1001/jama.2009.722 · Cited by 486 · see citing works
The ironic effect of significant results on the credibility of multiple-study articles.
Schimmack, U. (2012) · Psychological Methods · doi:10.1037/a0029487 · Cited by 455 · see citing works
Reporting bias in medical research - a narrative review
McGauran, N., Wieseler, B., Kreis, J., Schüler, Y.-B., Kölsch, H., & Kaiser, T. (2010) · Trials · doi:10.1186/1745-6215-11-37 · Cited by 452 · see citing works
Fostering integrity in research: Definitions, current knowledge, and future directions
Steneck, N. H. (2006) · Science and Engineering Ethics · doi:10.1007/pl00022268 · Cited by 407 · see citing works
Ospina, M. B., Krebs Seida, J., Clark, B., Karkhaneh, M., Hartling, L., Tjosvold, L., Vandermeer, B., & Smith, V. (2008) · PLoS ONE · doi:10.1371/journal.pone.0003755 · Cited by 366 · see citing works
Bes-Rastrollo, M., Schulze, M. B., Ruiz-Canela, M., & Martinez-Gonzalez, M. A. (2013) · PLoS Medicine · doi:10.1371/journal.pmed.1001578 · Cited by 343 · see citing works
Rising, K., Bacchetti, P., & Bero, L. (2008) · PLoS Medicine · doi:10.1371/journal.pmed.0050217 · Cited by 328 · see citing works
Outcome Reporting Among Drug Trials Registered in ClinicalTrials.gov
Bourgeois, F. T., Murthy, S., & Mandl, K. D. (2010) · Annals of Internal Medicine · doi:10.7326/0003-4819-153-3-201008030-00006 · Cited by 332 · see citing works
Reproducible Research Practices and Transparency across the Biomedical Literature
Iqbal, S. A., Wallach, J. D., Khoury, M. J., Schully, S. D., & Ioannidis, J. P. A. (2016) · PLOS Biology · doi:10.1371/journal.pbio.1002333 · Cited by 310 · see citing works
Perlis, R. H., Perlis, C. S., Wu, Y., Hwang, C., Joseph, M., & Nierenberg, A. A. (2005) · American Journal of Psychiatry · doi:10.1176/appi.ajp.162.10.1957 · Cited by 318 · see citing works
A case for a duty to feed the hungry: GM plants and the third world
Carter, L. (2007) · Science and Engineering Ethics · doi:10.1007/s11948-006-0006-y · Cited by 265 · see citing works
Wallach, J. D., Boyack, K. W., & Ioannidis, J. P. A. (2018) · PLOS Biology · doi:10.1371/journal.pbio.2006930 · Cited by 269 · see citing works
Bero, L., Oostvogel, F., Bacchetti, P., & Lee, K. (2007) · PLoS Medicine · doi:10.1371/journal.pmed.0040184 · Cited by 249 · see citing works
Yank, V., Rennie, D., & Bero, L. A. (2007) · BMJ · doi:10.1136/bmj.39376.447211.be · Cited by 235 · see citing works
Responsible Conduct of Research
Shamoo, A. E., & Resnik, D. B. (2022) · doi:10.1093/oso/9780197547090.001.0001 · Cited by 224 · see citing works
Tate, R. L., Perdices, M., Rosenkoetter, U., McDonald, S., Togher, L., Shadish, W., Horner, R., Kratochwill, T., Barlow, D. H., Kazdin, A., et al. (2016) · Archives of Scientific Psychology · doi:10.1037/arc0000027 · Cited by 219 · see citing works
Parkhurst, J. (2016) · London School of Economics and Political Science Research Online (London School of Economics and Political Science) · doi:10.4324/9781315675008 · Cited by 214 · see citing works
Escitalopram versus other antidepressive agents for depression
Cipriani, A., Santilli, C., Furukawa, T. A., Signoretti, A., Nakagawa, A., McGuire, H., Churchill, R., & Barbui, C. (2009) · Cochrane Database of Systematic Reviews · doi:10.1002/14651858.cd006532.pub2 · Cited by 190 · see citing works
Hardwicke, T. E., Thibault, R. T., Kosie, J. E., Wallach, J. D., Kidwell, M. C., & Ioannidis, J. P. A. (2022) · Perspectives on Psychological Science · doi:10.1177/1745691620979806 · Cited by 187 · see citing works
A Randomized Study of How Physicians Interpret Research Funding Disclosures
Kesselheim, A. S., Robertson, C. T., Myers, J. A., Rose, S. L., Gillet, V., Ross, K. M., Glynn, R. J., Joffe, S., & Avorn, J. (2012) · New England Journal of Medicine · doi:10.1056/nejmsa1202397 · Cited by 183 · see citing works
Yamato, T. P., Maher, C. G., Saragiotto, B. T., Hancock, M. J., Ostelo, R. W., Cabral, C. M., Menezes Costa, L. C., & Costa, L. O. (2015) · Cochrane Database of Systematic Reviews · doi:10.1002/14651858.cd010265.pub2 · Cited by 169 · see citing works
Industry sponsorship and research outcome: systematic review with meta-analysis
Lundh, A., Lexchin, J., Mintzes, B., Schroll, J. B., & Bero, L. (2018) · Intensive Care Medicine · doi:10.1007/s00134-018-5293-7 · Cited by 162 · see citing works
Industry support and correlation to study outcome for papers published in Spine
Shah, R. V., Albert, T. J., Bruegel-Sanchez, V., Vaccaro, A. R., Hilibrand, A. S., & Grauer, J. N. (2005) · Spine · doi:10.1097/01.brs.0000161004.15308.b4 · Cited by 155 · see citing works
Reporting of conflicts of interest in meta-analyses of trials of pharmacological treatments
Roseman, M. (2011) · JAMA · doi:10.1001/jama.2011.257 · Cited by 145 · see citing works
Association between pharmaceutical involvement and outcomes in breast cancer clinical trials.
Peppercorn, J., Blood, E., Winer, E., & Partridge, A. (2007) · Cancer · doi:10.1002/cncr.22528 · Cited by 123 · see citing works
Users' guide to detecting misleading claims in clinical research reports
Montori, V. M., Jaeschke, R., Schünemann, H. J., Bhandari, M., Brozek, J. L., Devereaux, P. J., & Guyatt, G. H. (2004) · BMJ · doi:10.1136/bmj.329.7474.1093 · Cited by 106 · see citing works
Diels, J., Cunha, M., Manaia, C., Sabugosa-Madeira, B., & Silva, M. (2011) · Food Policy · doi:10.1016/j.foodpol.2010.11.016 · Cited by 83 · see citing works
The Intellectual Crisis of Psychiatric Research
Fava, G. A. (2006) · Psychotherapy and Psychosomatics · doi:10.1159/000092890 · Cited by 79 · see citing works
Living guidelines for generative AI — why scientists must oversee its use
Bockting, C. L., van Dis, E. A. M., van Rooij, R., Zuidema, W., & Bollen, J. (2023) · Nature · doi:10.1038/d41586-023-03266-1 · Cited by 82 · see citing works
Conflicts of interest and spin in reviews of psychological therapies: a systematic review
Lieb, K., Osten-Sacken, J. V. D., Stoffers-Winterling, J., Reiss, N., & Barth, J. (2016) · BMJ Open · doi:10.1136/bmjopen-2015-010606 · Cited by 69 · see citing works
Epistemic Corruption, the Pharmaceutical Industry, and the Body of Medical Science
Sismondo, S. (2021) · Frontiers in Research Metrics and Analytics · doi:10.3389/frma.2021.614013 · Cited by 63 · see citing works
Naci, H., Dias, S., & Ades, A. E. (2014) · BMJ · doi:10.1136/bmj.g5741 · Cited by 61 · see citing works
Susceptibility to Fraud in Systematic Reviews: Lessons from the Reuben Case
Marret, E., Elia, N., Dahl, J. B., McQuay, H. J., Møiniche, S., Moore, R. A., Straube, S., & Tramèr, M. R. (2009) · Anesthesiology · doi:10.1097/aln.0b013e3181c14c3d · Cited by 50 · see citing works
Nicotine receptor partial agonists for smoking cessation
Cahill, K., Stead, L. F., & Lancaster, T. (2010) · Cochrane Database of Systematic Reviews · doi:10.1002/14651858.cd006103.pub4 · Cited by 46 · see citing works
Gómez-García, F., Ruano, J., Gay-Mimbrera, J., Aguilar-Luque, M., Sanz-Cabanillas, J. L., Alcalde-Mellado, P., Maestre-López, B., Carmona-Fernández, P. J., González-Padilla, M., García-Nieto, A. V., et al. (2017) · Journal of Clinical Epidemiology · doi:10.1016/j.jclinepi.2017.08.015 · Cited by 37 · see citing works
Management of endometriosis: Toward value-based, cost-effective, affordable care
Vercellini, P., Facchin, F., Buggio, L., Barbara, G., Berlanda, N., Frattaruolo, M. P., & Somigliana, E. (2018) · Journal of Obstetrics and Gynaecology Canada · doi:10.1016/j.jogc.2017.07.011 · Cited by 36 · see citing works
Krauth, D., Anglemyer, A., Philipps, R., & Bero, L. (2014) · PLoS Biology · doi:10.1371/journal.pbio.1001770 · Cited by 36 · see citing works
Science and money: problems and solutions
Resnik, D. B. (2014) · Journal of Microbiology & Biology Education · doi:10.1128/jmbe.v15i2.792 · Cited by 33 · see citing works
The hidden costs of financial conflicts of interest in medicine
Fava, G. A. (2016) · Psychotherapy and Psychosomatics · doi:10.1159/000442694 · Cited by 25 · see citing works
Potthast, R., Vervölgyi, V., McGauran, N., Kerekes, M. F., Wieseler, B., & Kaiser, T. (2014) · PLoS ONE · doi:10.1371/journal.pone.0092067 · Cited by 20 · see citing works
Conflicts of Interest in GM Bt Crop Efficacy and Durability Studies
Guillemaud, T., Lombaert, E., & Bourguet, D. (2016) · PLOS ONE · doi:10.1371/journal.pone.0167777 · Cited by 18 · see citing works
Abbas, M., Pires, D., Peters, A., Morel, C. M., Hurst, S., Holmes, A., Saito, H., Allegranzi, B., Lucet, J.-C., Zingg, W., et al. (2018) · Intensive Care Medicine · doi:10.1007/s00134-018-5361-z · Cited by 17 · see citing works
Pereira, M. M. A., Dini, C., Souza, J. G. S., Barão, V. A. R., & de Avila, E. D. (2024) · The Journal of Prosthetic Dentistry · doi:10.1016/j.prosdent.2022.05.026 · Cited by 14 · see citing works
Assessing transparency practices in dental randomized controlled trials
Prado, M. C., Dotto, L., Agostini, B., & Sarkis-Onofre, R. (2024) · BMC Medical Research Methodology · doi:10.1186/s12874-024-02316-0 · Cited by 6 · see citing works
“These factors can affect RCTs from conception to the reporting of results and conclusions [13, 32, 33].”
Background
- Authors
- Bekelman, J. E., Li, Y., & Gross, C. P.
- Affiliations
- Yale University (US)
- Venue
- JAMA
- Publisher
- American Medical Association (AMA)
- Published
- 2003-01-22
- Volume
- 289
- Issue
- 4
- Pages
- 454
- ISSN
- 0002-9955 (ISSN-L)
- 0098-7484
- OpenAlex
- W2016300030
- Cited by
- 1,816
- References
- 87
- Citations by year
- 2026: 38 · 2025: 36 · 2024: 33 · 2023: 52 · 2022: 60 · 2021: 55 · 2020: 77 · 2019: 75 · 2018: 77 · 2017: 82 · 2016: 82 · 2015: 81 · 2014: 71 · 2013: 71 · 2012: 105
- FWCI
- 8.99
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- JAMA (publishedVersion)
- PubMed (publishedVersion)
- DigitalGeorgetown (Georgetown University Library) (submittedVersion)
- Topics
- Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Pharmaceutical industry and healthcare
- Social Sciences › Business, Management and Accounting › Organizational Behavior and Human Resource Management › Global Public Health Policies and Epidemiology
- Social Sciences › Business, Management and Accounting › Strategy and Management › Political Influence and Corporate Strategies
- Keywords
- financial conflicts of interest, industry funding, biomedical research, research integrity, disclosure of financial interests, publication restrictions, data sharing restrictions, conflict of interest management
- MeSH terms
- Academies and Institutes, Cooperative Behavior, Financial Support, Industry, Research Support as Topic, Conflict of Interest, Peer Review, Research, Biomedical Research
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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