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Published in: Drug Safety 7/2017

01-07-2017 | Leading Article

Summarising the Evidence for Drug Safety: A Methodological Discussion of Different Meta-Analysis Approaches

Authors: Guillermo Prada-Ramallal, Bahi Takkouche, Adolfo Figueiras

Published in: Drug Safety | Issue 7/2017

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Abstract

Evidence on drug safety obtained from randomised clinical trials is very limited due to, among other reasons, their relatively small sample size. Hence, combining the results of available studies can prove particularly useful. This paper reviews the different data sources for summarising drug safety outcomes, according to study design, publication of data, and origin of the information. It then discusses the various types of overviews that can be used in the study of treatment harms, focusing on meta-analyses of aggregate data and meta-analyses of individual patient data, with their advantages and drawbacks, such as publication bias and heterogeneity. Although the different approaches available for combining the results are of great utility in assessing treatment harms, none of them is free from limitations. Therefore, it might be appropriate to perform an analysis of sensitivity to assess whether the results are sensitive to the technique that has been used.
Literature
1.
go back to reference Bouvy JC, De Bruin ML, Koopmanschap MA. Epidemiology of adverse drug reactions in Europe: a review of recent observational studies. Drug Saf. 2015;38:437–53.CrossRefPubMedPubMedCentral Bouvy JC, De Bruin ML, Koopmanschap MA. Epidemiology of adverse drug reactions in Europe: a review of recent observational studies. Drug Saf. 2015;38:437–53.CrossRefPubMedPubMedCentral
2.
go back to reference Clark DW, Coulter DM, Besag FM. Randomized controlled trials and assessment of drug safety. Drug Saf. 2008;31:1057–61.CrossRefPubMed Clark DW, Coulter DM, Besag FM. Randomized controlled trials and assessment of drug safety. Drug Saf. 2008;31:1057–61.CrossRefPubMed
3.
go back to reference Reynolds RF, Lem JA, Gatto NM, et al. Is the large simple trial design used for comparative, post-approval safety research? A review of a clinical trials registry and the published literature. Drug Saf. 2011;34:799–820.CrossRefPubMed Reynolds RF, Lem JA, Gatto NM, et al. Is the large simple trial design used for comparative, post-approval safety research? A review of a clinical trials registry and the published literature. Drug Saf. 2011;34:799–820.CrossRefPubMed
5.
go back to reference CIOMS Working Group X. Evidence synthesis and meta-analysis: report of CIOMS Working Group X. Geneva: Council for International Organizations of Medical Sciences (CIOMS); 2016. CIOMS Working Group X. Evidence synthesis and meta-analysis: report of CIOMS Working Group X. Geneva: Council for International Organizations of Medical Sciences (CIOMS); 2016.
6.
go back to reference Ioannidis JP, Lau J. Completeness of safety reporting in randomized trials: an evaluation of 7 medical areas. JAMA. 2001;285:437–43.CrossRefPubMed Ioannidis JP, Lau J. Completeness of safety reporting in randomized trials: an evaluation of 7 medical areas. JAMA. 2001;285:437–43.CrossRefPubMed
7.
go back to reference Chou R, Helfand M. Challenges in systematic reviews that assess treatment harms. Ann Intern Med. 2005;142:1090–9.CrossRefPubMed Chou R, Helfand M. Challenges in systematic reviews that assess treatment harms. Ann Intern Med. 2005;142:1090–9.CrossRefPubMed
8.
go back to reference Nuesch E, Trelle S, Reichenbach S, et al. The effects of excluding patients from the analysis in randomized controlled trials: meta-epidemiological study. BMJ. 2009;339:b3244.CrossRefPubMedPubMedCentral Nuesch E, Trelle S, Reichenbach S, et al. The effects of excluding patients from the analysis in randomized controlled trials: meta-epidemiological study. BMJ. 2009;339:b3244.CrossRefPubMedPubMedCentral
9.
go back to reference Hammad TA, Pinheiro SP, Neyarapally GA. Secondary use of randomized controlled trials to evaluate drug safety: a review of methodological considerations. Clin Trials. 2011;8:559–70.CrossRefPubMed Hammad TA, Pinheiro SP, Neyarapally GA. Secondary use of randomized controlled trials to evaluate drug safety: a review of methodological considerations. Clin Trials. 2011;8:559–70.CrossRefPubMed
10.
go back to reference Moride Y, Abenhaim L. Evidence of the depletion of susceptibles effect in non-experimental pharmacoepidemiologic research. J Clin Epidemiol. 1994;47:731–7.CrossRefPubMed Moride Y, Abenhaim L. Evidence of the depletion of susceptibles effect in non-experimental pharmacoepidemiologic research. J Clin Epidemiol. 1994;47:731–7.CrossRefPubMed
12.
go back to reference Vandenbroucke JP. When are observational studies as credible as randomised trials? Lancet. 2004;363:1728–31.CrossRefPubMed Vandenbroucke JP. When are observational studies as credible as randomised trials? Lancet. 2004;363:1728–31.CrossRefPubMed
13.
go back to reference Vandenbroucke JP. The HRT controversy: observational studies and RCTs fall in line. Lancet. 2009;373:1233–5.CrossRefPubMed Vandenbroucke JP. The HRT controversy: observational studies and RCTs fall in line. Lancet. 2009;373:1233–5.CrossRefPubMed
14.
go back to reference Papanikolaou PN, Christidi GD, Ioannidis JP. Comparison of evidence on harms of medical interventions in randomized and nonrandomized studies. CMAJ. 2006;174:635–41.CrossRefPubMedPubMedCentral Papanikolaou PN, Christidi GD, Ioannidis JP. Comparison of evidence on harms of medical interventions in randomized and nonrandomized studies. CMAJ. 2006;174:635–41.CrossRefPubMedPubMedCentral
16.
go back to reference Reeves BC, Deeks JJ, Higgins JPT, et el. Chapter 13: Including non-randomized studies. In: Higgins JPT, Green S, editors. Cochrane handbook for systematic reviews of interventions version 5.1.0 (updated March 2011). The Cochrane Collaboration; 2011. Available from http://www.cochrane-handbook.org. Reeves BC, Deeks JJ, Higgins JPT, et el. Chapter 13: Including non-randomized studies. In: Higgins JPT, Green S, editors. Cochrane handbook for systematic reviews of interventions version 5.1.0 (updated March 2011). The Cochrane Collaboration; 2011. Available from http://​www.​cochrane-handbook.​org.
17.
go back to reference Golder S, Loke YK, Bland M. Meta-analyses of adverse effects data derived from randomised controlled trials as compared to observational studies: methodological overview. PLoS Med. 2011;8:e1001026.CrossRefPubMedPubMedCentral Golder S, Loke YK, Bland M. Meta-analyses of adverse effects data derived from randomised controlled trials as compared to observational studies: methodological overview. PLoS Med. 2011;8:e1001026.CrossRefPubMedPubMedCentral
18.
go back to reference Bailey C, Peddie D, Wickham ME, et al. Adverse drug event reporting systems-a systematic review. Br J Clin Pharmacol. 2016;82:17–29.CrossRefPubMed Bailey C, Peddie D, Wickham ME, et al. Adverse drug event reporting systems-a systematic review. Br J Clin Pharmacol. 2016;82:17–29.CrossRefPubMed
19.
go back to reference Saini P, Loke YK, Gamble C, et al. Selective reporting bias of harm outcomes within studies: findings from a cohort of systematic reviews. BMJ. 2014;349:g6501.CrossRefPubMedPubMedCentral Saini P, Loke YK, Gamble C, et al. Selective reporting bias of harm outcomes within studies: findings from a cohort of systematic reviews. BMJ. 2014;349:g6501.CrossRefPubMedPubMedCentral
20.
go back to reference Rücker G, Schwarzer G, Carpenter J, et al. Why add anything to nothing? The arcsine difference as a measure of treatment effect in meta-analysis with zero cells. Stat Med. 2009;28:721–38.CrossRefPubMed Rücker G, Schwarzer G, Carpenter J, et al. Why add anything to nothing? The arcsine difference as a measure of treatment effect in meta-analysis with zero cells. Stat Med. 2009;28:721–38.CrossRefPubMed
21.
go back to reference Song F, Eastwood AJ, Gilbody S, et al. Publication and related biases. Health Technol Assess. 2000;4:1–115. Song F, Eastwood AJ, Gilbody S, et al. Publication and related biases. Health Technol Assess. 2000;4:1–115.
22.
go back to reference Morrison A, Moulton K, Clark M, Polisena, et al. English-language restriction when conducting systematic review-based meta-analyses: systematic review of published studies. Ottawa: Canadian Agency for Drugs and Technologies in Health; 2009. Morrison A, Moulton K, Clark M, Polisena, et al. English-language restriction when conducting systematic review-based meta-analyses: systematic review of published studies. Ottawa: Canadian Agency for Drugs and Technologies in Health; 2009.
25.
go back to reference Scherer RW, Langenberg P, von Elm E. Full publication of results initially presented in abstracts. Cochrane Database Syst Rev. 2007:MR000005. Scherer RW, Langenberg P, von Elm E. Full publication of results initially presented in abstracts. Cochrane Database Syst Rev. 2007:MR000005.
26.
go back to reference Kotecha D, Manzano L, Krum H, et al. Beta-Blockers in Heart Failure Collaborative Group. Effect of age and sex on efficacy and tolerability of β blockers in patients with heart failure with reduced ejection fraction: individual patient data meta-analysis. BMJ. 2016;353:i1855.CrossRefPubMedPubMedCentral Kotecha D, Manzano L, Krum H, et al. Beta-Blockers in Heart Failure Collaborative Group. Effect of age and sex on efficacy and tolerability of β blockers in patients with heart failure with reduced ejection fraction: individual patient data meta-analysis. BMJ. 2016;353:i1855.CrossRefPubMedPubMedCentral
27.
go back to reference Reichenpfader U, Gartlehner G, Morgan LC, et al. Sexual dysfunction associated with second-generation antidepressants in patients with major depressive disorder: results from a systematic review with network meta-analysis. Drug Saf. 2014;37:19–31.CrossRefPubMed Reichenpfader U, Gartlehner G, Morgan LC, et al. Sexual dysfunction associated with second-generation antidepressants in patients with major depressive disorder: results from a systematic review with network meta-analysis. Drug Saf. 2014;37:19–31.CrossRefPubMed
28.
go back to reference Veroniki AA, Straus SE, Ashoor HM, et al. Comparative safety and effectiveness of cognitive enhancers for Alzheimer’s dementia: protocol for a systematic review and individual patient data network meta-analysis. BMJ Open. 2016;6:e010251.CrossRefPubMedPubMedCentral Veroniki AA, Straus SE, Ashoor HM, et al. Comparative safety and effectiveness of cognitive enhancers for Alzheimer’s dementia: protocol for a systematic review and individual patient data network meta-analysis. BMJ Open. 2016;6:e010251.CrossRefPubMedPubMedCentral
29.
go back to reference Golder S, Loke YK, Wright K, Norman G. Reporting of adverse events in published and unpublished studies of health care interventions: a systematic review. PLoS Med. 2016;13:e1002127.CrossRefPubMedPubMedCentral Golder S, Loke YK, Wright K, Norman G. Reporting of adverse events in published and unpublished studies of health care interventions: a systematic review. PLoS Med. 2016;13:e1002127.CrossRefPubMedPubMedCentral
30.
go back to reference FDA Amendments Act. Public Law 110-85. 2007. Ref Type: Statute. FDA Amendments Act. Public Law 110-85. 2007. Ref Type: Statute.
31.
go back to reference Law MR, Kawasumi Y, Morgan SG. Despite law, fewer than one in eight completed studies of drugs and biologics are reported on time on ClinicalTrials.gov. Health Aff (Millwood). 2011;30:2338–45.CrossRef Law MR, Kawasumi Y, Morgan SG. Despite law, fewer than one in eight completed studies of drugs and biologics are reported on time on ClinicalTrials.gov. Health Aff (Millwood). 2011;30:2338–45.CrossRef
33.
go back to reference Aalaei-Andabili SH, Alavian SM. Important steps for a reliable meta-analysis. Lancet Infect Dis. 2012;12:663.CrossRefPubMed Aalaei-Andabili SH, Alavian SM. Important steps for a reliable meta-analysis. Lancet Infect Dis. 2012;12:663.CrossRefPubMed
34.
go back to reference Sterne JAC, Egger M, Moher D. Chapter 10: Addressing reporting biases. In: Higgins JPT, Green S, editors. Cochrane handbook for systematic reviews of interventions version 5.1.0 (updated March 2011). The Cochrane Collaboration; 2011. Available from http://www.cochrane-handbook.org. Sterne JAC, Egger M, Moher D. Chapter 10: Addressing reporting biases. In: Higgins JPT, Green S, editors. Cochrane handbook for systematic reviews of interventions version 5.1.0 (updated March 2011). The Cochrane Collaboration; 2011. Available from http://​www.​cochrane-handbook.​org.
35.
go back to reference Terrin N, Schmid CH, Lau J. In an empirical evaluation of the funnel plot, researchers could not visually identify publication bias. J Clin Epidemiol. 2005;58:894–901.CrossRefPubMed Terrin N, Schmid CH, Lau J. In an empirical evaluation of the funnel plot, researchers could not visually identify publication bias. J Clin Epidemiol. 2005;58:894–901.CrossRefPubMed
37.
go back to reference Loke YK, Mattishent K. If nothing happens, is everything all right? Distinguishing genuine reassurance from a false sense of security. CMAJ. 2015;187:15–6.CrossRefPubMedPubMedCentral Loke YK, Mattishent K. If nothing happens, is everything all right? Distinguishing genuine reassurance from a false sense of security. CMAJ. 2015;187:15–6.CrossRefPubMedPubMedCentral
38.
go back to reference Chou R, Aronson N, Atkins D, et al. AHRQ series paper 4: assessing harms when comparing medical interventions: AHRQ and the effective health-care program. J Clin Epidemiol. 2010;63:502–12.CrossRefPubMed Chou R, Aronson N, Atkins D, et al. AHRQ series paper 4: assessing harms when comparing medical interventions: AHRQ and the effective health-care program. J Clin Epidemiol. 2010;63:502–12.CrossRefPubMed
40.
go back to reference Schneeweiss S, Avorn J. A review of uses of health care utilization databases for epidemiologic research on therapeutics. J Clin Epidemiol. 2005;58:323–37.CrossRefPubMed Schneeweiss S, Avorn J. A review of uses of health care utilization databases for epidemiologic research on therapeutics. J Clin Epidemiol. 2005;58:323–37.CrossRefPubMed
41.
go back to reference Figueiras A, Ferreira MT, Gestal JJ. Farmacovigilancia. In: Fernández-Crehuet J, Gestal JJ, Delgado M, et al., editors. Piédrola Gil. Medicina Preventiva y Salud Pública. 12ª Edición. Barcelona: Elsevier Masson; 2015. pp. 1093–104. Figueiras A, Ferreira MT, Gestal JJ. Farmacovigilancia. In: Fernández-Crehuet J, Gestal JJ, Delgado M, et al., editors. Piédrola Gil. Medicina Preventiva y Salud Pública. 12ª Edición. Barcelona: Elsevier Masson; 2015. pp. 1093–104.
42.
go back to reference Van Walraven C, Austin P. Administrative database research has unique characteristics that can risk biased results. J Clin Epidemiol. 2012;65:126–31.CrossRefPubMed Van Walraven C, Austin P. Administrative database research has unique characteristics that can risk biased results. J Clin Epidemiol. 2012;65:126–31.CrossRefPubMed
43.
go back to reference Takahashi Y, Nishida Y, Asai S. Utilization of health care databases for pharmacoepidemiology. Eur J Clin Pharmacol. 2012;68:123–9.CrossRefPubMed Takahashi Y, Nishida Y, Asai S. Utilization of health care databases for pharmacoepidemiology. Eur J Clin Pharmacol. 2012;68:123–9.CrossRefPubMed
44.
go back to reference Hennessy S. Use of health care databases in pharmacoepidemiology. Basic Clin Pharmacol Toxicol. 2006;98:311–3.CrossRefPubMed Hennessy S. Use of health care databases in pharmacoepidemiology. Basic Clin Pharmacol Toxicol. 2006;98:311–3.CrossRefPubMed
45.
go back to reference Blettner M, Sauerbrei W, Schlehofer B, et al. Traditional reviews, meta-analyses and pooled analyses in epidemiology. Int J Epidemiol. 1999;28:1–9.CrossRefPubMed Blettner M, Sauerbrei W, Schlehofer B, et al. Traditional reviews, meta-analyses and pooled analyses in epidemiology. Int J Epidemiol. 1999;28:1–9.CrossRefPubMed
46.
go back to reference Blettner M, Schlattmann P. Meta-analysis in epidemiology. In: Ahrens W, Pigeot I, editors. Handbook of epidemiology. Berlin: Springer; 2005. pp. 829–59.CrossRef Blettner M, Schlattmann P. Meta-analysis in epidemiology. In: Ahrens W, Pigeot I, editors. Handbook of epidemiology. Berlin: Springer; 2005. pp. 829–59.CrossRef
47.
go back to reference Nordmann AJ, Kasenda B, Briel M. Meta-analyses: what they can and cannot do. Swiss Med Wkly. 2012;142:w13518.PubMed Nordmann AJ, Kasenda B, Briel M. Meta-analyses: what they can and cannot do. Swiss Med Wkly. 2012;142:w13518.PubMed
48.
go back to reference Colquhoun HL, Levac D, O’Brien KK, et al. Scoping reviews: time for clarity in definition, methods, and reporting. J Clin Epidemiol. 2014;67:1291–4.CrossRefPubMed Colquhoun HL, Levac D, O’Brien KK, et al. Scoping reviews: time for clarity in definition, methods, and reporting. J Clin Epidemiol. 2014;67:1291–4.CrossRefPubMed
49.
go back to reference Riley RD, Simmonds MC, Look MP. Evidence synthesis combining individual patient data and aggregate data: a systematic review identified current practice and possible methods. J Clin Epidemiol. 2007;60:431–9.PubMed Riley RD, Simmonds MC, Look MP. Evidence synthesis combining individual patient data and aggregate data: a systematic review identified current practice and possible methods. J Clin Epidemiol. 2007;60:431–9.PubMed
50.
go back to reference Friedenreich CM. Methods for pooled analyses of epidemiologic studies. Epidemiology. 1993;4:295–302.CrossRefPubMed Friedenreich CM. Methods for pooled analyses of epidemiologic studies. Epidemiology. 1993;4:295–302.CrossRefPubMed
51.
52.
go back to reference Song F, Loke YK, Walsh T, et al. Methodological problems in the use of indirect comparisons for evaluating healthcare interventions: survey of published systematic reviews. BMJ. 2009;338:b1147.CrossRefPubMedPubMedCentral Song F, Loke YK, Walsh T, et al. Methodological problems in the use of indirect comparisons for evaluating healthcare interventions: survey of published systematic reviews. BMJ. 2009;338:b1147.CrossRefPubMedPubMedCentral
53.
go back to reference Cameron C, Fireman B, Hutton B, et al. Network meta-analysis incorporating randomized controlled trials and non-randomized comparative cohort studies for assessing the safety and effectiveness of medical treatments: challenges and opportunities. Syst Rev. 2015;4:147.CrossRefPubMedPubMedCentral Cameron C, Fireman B, Hutton B, et al. Network meta-analysis incorporating randomized controlled trials and non-randomized comparative cohort studies for assessing the safety and effectiveness of medical treatments: challenges and opportunities. Syst Rev. 2015;4:147.CrossRefPubMedPubMedCentral
54.
go back to reference Duval S, Tweedie R. Trim and fill: a simple funnel-plot-based method of testing and adjusting for publication bias in meta-analysis. Biometrics. 2000;56:455–63.CrossRefPubMed Duval S, Tweedie R. Trim and fill: a simple funnel-plot-based method of testing and adjusting for publication bias in meta-analysis. Biometrics. 2000;56:455–63.CrossRefPubMed
56.
go back to reference Tobías A, Saez M, Kogevinas M. Meta-analysis of results and individual patient data in epidemiologal studies. J Mod Appl Stat Methods. 2004;1:176–85.CrossRef Tobías A, Saez M, Kogevinas M. Meta-analysis of results and individual patient data in epidemiologal studies. J Mod Appl Stat Methods. 2004;1:176–85.CrossRef
57.
go back to reference Oakes M. On meta-analysis. In: Statistical inference. Chestnut Hill: Epidemiology Resources Inc; 1990. pp. 157–63. Oakes M. On meta-analysis. In: Statistical inference. Chestnut Hill: Epidemiology Resources Inc; 1990. pp. 157–63.
59.
go back to reference Feinstein AR. Meta-analysis: statistical alchemy for the 21st century. J Clin Epidemiol. 1995;48:71–9.CrossRefPubMed Feinstein AR. Meta-analysis: statistical alchemy for the 21st century. J Clin Epidemiol. 1995;48:71–9.CrossRefPubMed
61.
go back to reference Ioannidis JP, Lau J. Pooling research results: benefits and limitations of meta-analysis. Jt Comm J Qual Improv. 1999;25:462–9.PubMed Ioannidis JP, Lau J. Pooling research results: benefits and limitations of meta-analysis. Jt Comm J Qual Improv. 1999;25:462–9.PubMed
63.
go back to reference Nissen SE, Wolski K. Effect of rosiglitazone on the risk of myocardial infarction and death from cardiovascular causes. N Engl J Med. 2007;356:2457–71.CrossRefPubMed Nissen SE, Wolski K. Effect of rosiglitazone on the risk of myocardial infarction and death from cardiovascular causes. N Engl J Med. 2007;356:2457–71.CrossRefPubMed
64.
go back to reference Hu M, Cappelleri JC, Lan KK. Applying the law of iterated logarithm to control type I error in cumulative meta-analysis of binary outcomes. Clin Trials. 2007;4:329–40.CrossRefPubMed Hu M, Cappelleri JC, Lan KK. Applying the law of iterated logarithm to control type I error in cumulative meta-analysis of binary outcomes. Clin Trials. 2007;4:329–40.CrossRefPubMed
65.
66.
go back to reference Higgins JPT. Heterogeneity in meta-analysis should be expected and appropriately quantified. Int J Epidemiol. 2008;37:1158–60.CrossRefPubMed Higgins JPT. Heterogeneity in meta-analysis should be expected and appropriately quantified. Int J Epidemiol. 2008;37:1158–60.CrossRefPubMed
67.
go back to reference Berlin JA. Benefits of heterogeneity in meta-analysis of data from epidemiologic studies. Am J Epidemiol. 1995;142:383–7.CrossRefPubMed Berlin JA. Benefits of heterogeneity in meta-analysis of data from epidemiologic studies. Am J Epidemiol. 1995;142:383–7.CrossRefPubMed
68.
go back to reference Takkouche B, Khudyakov P, Costa-Bouzas J, et al. Confidence intervals for heterogeneity measures in meta-analysis. Am J Epidemiol. 2013;178:993–1004.CrossRefPubMedPubMedCentral Takkouche B, Khudyakov P, Costa-Bouzas J, et al. Confidence intervals for heterogeneity measures in meta-analysis. Am J Epidemiol. 2013;178:993–1004.CrossRefPubMedPubMedCentral
69.
70.
go back to reference Berlin JA, Santanna J, Schmid CH, et al. Individual patient- versus group-level data meta-regressions for the investigation of treatment effect modifiers: ecological bias rears its ugly head. Stat Med. 2002;21:371–87.CrossRefPubMed Berlin JA, Santanna J, Schmid CH, et al. Individual patient- versus group-level data meta-regressions for the investigation of treatment effect modifiers: ecological bias rears its ugly head. Stat Med. 2002;21:371–87.CrossRefPubMed
71.
go back to reference Riley RD, Lambert PC, Staessen JA, et al. Meta-analysis of continuous outcomes combining individual patient data and aggregate data. Stat Med. 2008;27:1870–93.CrossRefPubMed Riley RD, Lambert PC, Staessen JA, et al. Meta-analysis of continuous outcomes combining individual patient data and aggregate data. Stat Med. 2008;27:1870–93.CrossRefPubMed
72.
go back to reference Riley RD, Lambert PC, Abo-Zaid G. Meta-analysis of individual participant data: rationale, conduct, and reporting. BMJ. 2010;340:c221.CrossRefPubMed Riley RD, Lambert PC, Abo-Zaid G. Meta-analysis of individual participant data: rationale, conduct, and reporting. BMJ. 2010;340:c221.CrossRefPubMed
73.
go back to reference Simmonds MC, Higgins JP, Stewart LA, et al. Meta-analysis of individual patient data from randomized trials: a review of methods used in practice. Clin Trials. 2005;2:209–17.CrossRefPubMed Simmonds MC, Higgins JP, Stewart LA, et al. Meta-analysis of individual patient data from randomized trials: a review of methods used in practice. Clin Trials. 2005;2:209–17.CrossRefPubMed
74.
go back to reference Stewart LA, Parmar MK. Meta-analysis of the literature or of individual patient data: is there a difference? Lancet. 1993;341:418–22.CrossRefPubMed Stewart LA, Parmar MK. Meta-analysis of the literature or of individual patient data: is there a difference? Lancet. 1993;341:418–22.CrossRefPubMed
75.
go back to reference Stewart LA, Clarke MJ. Practical methodology of meta-analyses (overviews) using updated individual patient data. Cochrane Working Group. Stat Med. 1995;14:2057–79.CrossRefPubMed Stewart LA, Clarke MJ. Practical methodology of meta-analyses (overviews) using updated individual patient data. Cochrane Working Group. Stat Med. 1995;14:2057–79.CrossRefPubMed
76.
go back to reference Stewart LA, Clarke M, Rovers M, et al. PRISMA-IPD Development Group. Preferred Reporting Items for Systematic Review and Meta-Analyses of individual participant data: the PRISMA-IPD Statement. JAMA. 2015;313:1657–65.CrossRefPubMed Stewart LA, Clarke M, Rovers M, et al. PRISMA-IPD Development Group. Preferred Reporting Items for Systematic Review and Meta-Analyses of individual participant data: the PRISMA-IPD Statement. JAMA. 2015;313:1657–65.CrossRefPubMed
77.
go back to reference Stewart LA, Tierney JF. To IPD or not to IPD? Advantages and disadvantages of systematic reviews using individual patient data. Eval Health Prof. 2002;25:76–97.CrossRefPubMed Stewart LA, Tierney JF. To IPD or not to IPD? Advantages and disadvantages of systematic reviews using individual patient data. Eval Health Prof. 2002;25:76–97.CrossRefPubMed
78.
go back to reference Burgess S, White IR, Resche-Rigon M, et al. Combining multiple imputation and meta-analysis with individual participant data. Stat Med. 2013;32:4499–514.CrossRefPubMedPubMedCentral Burgess S, White IR, Resche-Rigon M, et al. Combining multiple imputation and meta-analysis with individual participant data. Stat Med. 2013;32:4499–514.CrossRefPubMedPubMedCentral
79.
go back to reference Lambert PC, Sutton AJ, Abrams KR, et al. A comparison of summary patient-level covariates in meta-regression with individual patient data meta-analysis. J Clin Epidemiol. 2002;55:86–94.CrossRefPubMed Lambert PC, Sutton AJ, Abrams KR, et al. A comparison of summary patient-level covariates in meta-regression with individual patient data meta-analysis. J Clin Epidemiol. 2002;55:86–94.CrossRefPubMed
80.
go back to reference Ahmed I, Sutton AJ, Riley RD. Assessment of publication bias, selection bias, and unavailable data in meta-analyses using individual participant data: a database survey. BMJ. 2012;344:d7762.CrossRefPubMed Ahmed I, Sutton AJ, Riley RD. Assessment of publication bias, selection bias, and unavailable data in meta-analyses using individual participant data: a database survey. BMJ. 2012;344:d7762.CrossRefPubMed
81.
go back to reference Abo-Zaid G, Guo B, Deeks JJ, et al. Individual participant data meta-analyses should not ignore clustering. J Clin Epidemiol. 2013;66(865–873):e4. Abo-Zaid G, Guo B, Deeks JJ, et al. Individual participant data meta-analyses should not ignore clustering. J Clin Epidemiol. 2013;66(865–873):e4.
82.
go back to reference Debray TP, Moons KG, van Valkenhoef G, et al. Get real in individual participant data (IPD) meta-analysis: a review of the methodology. Res Synth Methods. 2015;6:293–309.CrossRefPubMedPubMedCentral Debray TP, Moons KG, van Valkenhoef G, et al. Get real in individual participant data (IPD) meta-analysis: a review of the methodology. Res Synth Methods. 2015;6:293–309.CrossRefPubMedPubMedCentral
83.
go back to reference Wolfson M, Wallace SE, Masca N, et al. DataSHIELD: resolving a conflict in contemporary bioscience–performing a pooled analysis of individual-level data without sharing the data. Int J Epidemiol. 2010;39:1372–82.CrossRefPubMedPubMedCentral Wolfson M, Wallace SE, Masca N, et al. DataSHIELD: resolving a conflict in contemporary bioscience–performing a pooled analysis of individual-level data without sharing the data. Int J Epidemiol. 2010;39:1372–82.CrossRefPubMedPubMedCentral
84.
go back to reference Zorzela L, Loke YK, Ioannidis JP, et al. PRISMA harms checklist: improving harms reporting in systematic reviews. BMJ. 2016;352:i157.CrossRefPubMed Zorzela L, Loke YK, Ioannidis JP, et al. PRISMA harms checklist: improving harms reporting in systematic reviews. BMJ. 2016;352:i157.CrossRefPubMed
85.
go back to reference Patsopoulos NA, Analatos AA, Ioannidis JP. Relative citation impact of various study designs in the health sciences. JAMA. 2005;293:2362–6.CrossRefPubMed Patsopoulos NA, Analatos AA, Ioannidis JP. Relative citation impact of various study designs in the health sciences. JAMA. 2005;293:2362–6.CrossRefPubMed
Metadata
Title
Summarising the Evidence for Drug Safety: A Methodological Discussion of Different Meta-Analysis Approaches
Authors
Guillermo Prada-Ramallal
Bahi Takkouche
Adolfo Figueiras
Publication date
01-07-2017
Publisher
Springer International Publishing
Published in
Drug Safety / Issue 7/2017
Print ISSN: 0114-5916
Electronic ISSN: 1179-1942
DOI
https://doi.org/10.1007/s40264-017-0518-1

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