De Angelis C, Drazen JM, Frizelle FA, Haug C, Hoey J, Horton R, Kotzin S, Laine C, Marusic A, Overbeke AJP. Clinical trial registration: a statement from the International Committee of Medical Journal Editors. N Engl J Med. 2004;351(12):1250–1.
Article
PubMed
Google Scholar
Dickersin K, Chan S, Chalmers TC, Sacks HS, Smith H. Publication bias and clinical trials. Control Clin Trials. 1987;8(4):343–53.
Article
CAS
PubMed
Google Scholar
Dickersin K, Rennie D. Registering clinical trials. JAMA. 2003;290(4):516–23.
Article
PubMed
Google Scholar
McCray AT. Better access to information about clinical trials. Ann Intern Med. 2000;133(8):609–14.
Article
CAS
PubMed
Google Scholar
Meinert CL. Toward prospective registration of clinical trials. Control Clin Trials. 1988;9(1):1–5.
Article
CAS
PubMed
Google Scholar
Simes RJ. Publication bias: the case for an international registry of clinical trials. J Clin Oncol. 1986;4(10):1529–41.
Article
CAS
PubMed
Google Scholar
Califf R, Zarin D, Kramer J, Sherman R, Aberle L, Tasneem A. Characteristics of clinical trials registered in ClinicalTrials.gov, 2007-2010. JAMA. 2012;307(17):1838–47.
Article
CAS
PubMed
Google Scholar
Dwan K, Altman DG, Clarke M, Gamble C, Higgins JP, Sterne JA, Williamson PR, Kirkham JJ. Evidence for the selective reporting of analyses and discrepancies in clinical trials: a systematic review of cohort studies of clinical trials. PLoS Med. 2014;11(6):e1001666.
Article
PubMed
PubMed Central
Google Scholar
Prayle AP, Hurley MN, Smyth AR. Compliance with mandatory reporting of clinical trial results on ClinicalTrials.gov: cross sectional study. BMJ. 2012;344:d7373.
Article
PubMed
Google Scholar
Tse T, Williams RJ, Zarin DA. Update on registration of clinical trials in ClinicalTrials.gov. Chest. 2009;136(1):304–5.
Article
PubMed
PubMed Central
Google Scholar
Zarin DA, Tse T, Ide NC. Trial registration at ClinicalTrials.gov between May and October 2005. N Engl J Med. 2005;353(26):2779–87.
Article
CAS
PubMed
PubMed Central
Google Scholar
Hooft L, Korevaar DA, Molenaar N, Bossuyt PM, Scholten RJ. Endorsement of ICMJE’s Clinical Trial Registration Policy: a survey among journal editors. Neth J Med. 2014;72(7):349–55.
CAS
PubMed
Google Scholar
No R: 536/2014 of the European Parliament and the Council of 16 April 2014 on clinical trials on medicinal products for human use, and repealing Directive 2001/20. EC Official Journal of the European Union, L 2014, 158(27.5).
Dwan K, Gamble C, Williamson PR, Kirkham JJ. Systematic review of the empirical evidence of study publication bias and outcome reporting bias—an updated review. PLoS One. 2013;8(7):e66844.
Article
CAS
PubMed
PubMed Central
Google Scholar
Huser V, Cimino JJ. Linking ClinicalTrials. gov and PubMed to track results of interventional human clinical trials. PLoS One. 2013;8(7):e68409.
Article
CAS
PubMed
PubMed Central
Google Scholar
Huser V, Cimino JJ. Evaluating adherence to the International Committee of Medical Journal Editors’ policy of mandatory, timely clinical trial registration. J Am Med Inform Assoc. 2013;20(e1):e169–74.
Article
PubMed
PubMed Central
Google Scholar
Jones CW, Keil LG, Weaver MA, Platts-Mills TF. Clinical trials registries are under-utilized in the conduct of systematic reviews: a cross-sectional analysis. Syst Rev. 2014;3(1):1.
Article
CAS
Google Scholar
Schroll JB, Bero L, Gøtzsche PC. Searching for unpublished data for Cochrane reviews: cross-sectional study. BMJ. 2013;346:f2231.
Article
PubMed
PubMed Central
Google Scholar
Wolfe N, Gøtzsche PC, Bero L. Strategies for obtaining unpublished drug trial data: a qualitative interview study. Syst Rev. 2013;2(1):1–11.
Article
Google Scholar
Baudard M, Yavchitz A, Ravaud P, Perrodeau E, Boutron I. Impact of searching clinical trial registries in systematic reviews of pharmaceutical treatments: methodological systematic review and reanalysis of meta-analyses. BMJ. 2017;356:j448.
Article
PubMed
PubMed Central
Google Scholar
Schmucker CM, Blümle A, Schell LK, Schwarzer G, Oeller P, Cabrera L, von Elm E, Briel M, Meerpohl JJ, on behalf of the Oc. Systematic review finds that study data not published in full text articles have unclear impact on meta-analyses results in medical research. PLoS One. 2017;12(4):e0176210.
Article
PubMed
PubMed Central
Google Scholar
Bashir R, Dunn AG. Systematic review protocol assessing the processes for linking clinical trial registries and their published results. BMJ Open. 2016;6(10):e013048.
Article
PubMed
PubMed Central
Google Scholar
Bramer WM, Giustini D, Kramer BM. Comparing the coverage, recall, and precision of searches for 120 systematic reviews in Embase, MEDLINE, and Google Scholar: a prospective study. Syst Rev. 2016;5(1):1.
Article
Google Scholar
Preston L, Carroll C, Gardois P, Paisley S, Kaltenthaler E. Improving search efficiency for systematic reviews of diagnostic test accuracy: an exploratory study to assess the viability of limiting to MEDLINE, EMBASE and reference checking. Syst Rev. 2015;4(1):1.
Article
Google Scholar
Moher D, Liberati A, Tetzlaff J, Altman DG, Group P. Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. Int J Surg. 2010;8(5):336–41.
Article
PubMed
Google Scholar
van de Wetering F, Scholten R, Haring T, Clarke M, Hooft L. Trial registration numbers are underreported in biomedical publications. PLoS One. 2012;7(11):e49599.
Article
PubMed
PubMed Central
CAS
Google Scholar
Carrasco M, Volkmar FR, Bloch MH. Pharmacologic treatment of repetitive behaviors in autism spectrum disorders: evidence of publication bias. Pediatrics. 2012;129(5):e1301–10.
Article
PubMed
PubMed Central
Google Scholar
Nowbar AN, Mielewczik M, Karavassilis M, Dehbi H-M, Shun-Shin MJ, Jones S, Howard JP, Cole GD, Francis DP. Discrepancies in autologous bone marrow stem cell trials and enhancement of ejection fraction (DAMASCENE): weighted regression and meta-analysis. BMJ. 2014;348:g2688.
Article
PubMed
PubMed Central
Google Scholar
Turner EH, Matthews AM, Linardatos E, Tell RA, Rosenthal R. Selective publication of antidepressant trials and its influence on apparent efficacy. N Engl J Med. 2008;358(3):252–60.
Article
CAS
PubMed
Google Scholar
Adewuyi TE, MacLennan G, Cook JA. Non-compliance with randomised allocation and missing outcome data in randomised controlled trials evaluating surgical interventions: a systematic review. BMC Res Notes. 2015;8(1):1.
Article
Google Scholar
Bourgeois FT, Murthy S, Mandl KD. Comparative effectiveness research: an empirical study of trials registered in ClinicalTrials. gov. PLoS One. 2012;7(1):e28820.
Article
CAS
PubMed
PubMed Central
Google Scholar
Cole GD, Nowbar AN, Mielewczik M, Shun-Shin MJ, Francis DP. Frequency of discrepancies in retracted clinical trial reports versus unretracted reports: blinded case-control study. BMJ. 2015;351:h4708.
Article
PubMed
PubMed Central
Google Scholar
Yoshimoto Y. Publication bias in neurosurgery: lessons from series of unruptured aneurysms. Acta Neurochir. 2003;145(1):45–8.
Article
CAS
PubMed
Google Scholar
Chan A-W, Hróbjartsson A, Haahr MT, Gøtzsche PC, Altman DG. Empirical evidence for selective reporting of outcomes in randomized trials: comparison of protocols to published articles. JAMA. 2004;291(20):2457–65.
Article
CAS
PubMed
Google Scholar
Kasenda B, Von Elm E, You J, Blümle A, Tomonaga Y, Saccilotto R, Amstutz A, Bengough T, Meerpohl JJ, Stegert M. Prevalence, characteristics, and publication of discontinued randomized trials. JAMA. 2014;311(10):1045–52.
Article
CAS
PubMed
Google Scholar
Smyth R, Kirkham J, Jacoby A, Altman D, Gamble C, Williamson P. Frequency and reasons for outcome reporting bias in clinical trials: interviews with trialists. BMJ. 2011;342:c7153.
Article
CAS
PubMed
PubMed Central
Google Scholar
Tharyan P, George AT, Kirubakaran R, Barnabas JP. Reporting of methods was better in the Clinical Trials Registry-India than in Indian journal publications. J Clin Epidemiol. 2013;66(1):10–22.
Article
PubMed
Google Scholar
Harris P, Takeda A, Loveman E, Hartwell D. Time to full publication of studies of anticancer drugs for breast cancer, and the potential for publication bias. Int J Technol Assess Health Care. 2010;26(01):110–6.
Article
PubMed
Google Scholar
Massey PR, Wang R, Prasad V, Bates SE, Fojo T. Assessing the eventual publication of clinical trial abstracts submitted to a large annual oncology meeting. Oncologist. 2016;21(3):261–8.
Article
PubMed
PubMed Central
Google Scholar
Polyzos NP, Valachis A, Patavoukas E, Papanikolaou EG, Messinis IE, Tarlatzis BC, Devroey P. Publication bias in reproductive medicine: from the European Society of Human Reproduction and Embryology annual meeting to publication. Hum Reprod. 2011;26(6):1371–6.
Article
PubMed
Google Scholar
Saeed M, Paulson K, Lambert P, Szwajcer D, Seftel M. Publication bias in blood and marrow transplantation. Biol Blood Marrow Transplant. 2011;17(6):930–4.
Article
PubMed
Google Scholar
Scherer RW, Huynh L, Ervin A-M, Dickersin K. Using ClinicalTrials. gov to supplement information in ophthalmology conference abstracts about trial outcomes: a comparison study. PLoS One. 2015;10(6):e0130619.
Article
PubMed
PubMed Central
CAS
Google Scholar
Chang L, Dhruva SS, Chu J, Bero LA, Redberg RF. Selective reporting in trials of high risk cardiovascular devices: cross sectional comparison between premarket approval summaries and published reports. BMJ. 2015;350:h2613.
Article
PubMed
PubMed Central
Google Scholar
Miller JE, Korn D, Ross JS. Clinical trial registration, reporting, publication and FDAAA compliance: a cross-sectional analysis and ranking of new drugs approved by the FDA in 2012. BMJ Open. 2015;5(11):e009758.
Article
PubMed
PubMed Central
Google Scholar
Moreno SG, Sutton AJ, Turner EH, Abrams KR, Cooper NJ, Palmer TM, Ades A. Novel methods to deal with publication biases: secondary analysis of antidepressant trials in the FDA trial registry database and related journal publications. BMJ. 2009;339:b2981.
Article
PubMed
PubMed Central
Google Scholar
Turner EH, Knoepflmacher D, Shapley L. Publication bias in antipsychotic trials: an analysis of efficacy comparing the published literature to the US Food and Drug Administration database. PLoS Med. 2012;9(3):e1001189.
Article
PubMed
PubMed Central
Google Scholar
Withycombe B, Ovenell M, Meeker A, Ahmed SM, Hartung DM. Timing of pivotal clinical trial results reporting for newly approved medications varied by reporting source. J Clin Epidemiol. 2016.
Mitchell AP, Hirsch BR, Abernethy AP. Lack of timely accrual information in oncology clinical trials: a cross-sectional analysis. Trials. 2014;15(1):1.
Article
Google Scholar
Prasad V, Goldstein JA. Clinical trial spots for cancer patients by tumour type: the cancer trials portfolio at clinicaltrials. gov. Eur J Cancer. 2015;51(17):2718–23.
Article
PubMed
PubMed Central
Google Scholar
Pranić S, Marušić A. Changes to registration elements and results in a cohort of Clinicaltrials. gov trials were not reflected in published articles. J Clin Epidemiol. 2015;70:26–37.
Article
PubMed
Google Scholar
Ross JS, Mulvey GK, Hines EM, Nissen SE, Krumholz HM. Trial publication after registration in ClinicalTrials. gov: a cross-sectional analysis. PLoS Med. 2009;6(9):e1000144.
Article
PubMed
PubMed Central
Google Scholar
Liu J-P, Han M, Li X-X, Mu Y-J, Lewith G, Wang Y-Y, Witt CM, Yang G-Y, Manheimer E, Snellingen T. Prospective registration, bias risk and outcome-reporting bias in randomised clinical trials of traditional Chinese medicine: an empirical methodological study. BMJ Open. 2013;3(7):e002968.
Article
PubMed
PubMed Central
Google Scholar
Ross JS, Tse T, Zarin DA, Xu H, Zhou L, Krumholz HM. Publication of NIH funded trials registered in ClinicalTrials. gov: cross sectional analysis. BMJ. 2012;344:d7292.
Article
PubMed
PubMed Central
Google Scholar
Hill KD, Chiswell K, Califf RM, Pearson G, Li JS. Characteristics of pediatric cardiovascular clinical trials registered on ClinicalTrials. gov. Am Heart J. 2014;167(6):921–9. e922.
Article
PubMed
PubMed Central
Google Scholar
Chapman SJ, Shelton B, Mahmood H, Fitzgerald JE, Harrison EM, Bhangu A. Discontinuation and non-publication of surgical randomised controlled trials: observational study. BMJ. 2014;349:g6870.
Article
PubMed
PubMed Central
Google Scholar
Ewart R, Lausen H, Millian N. Undisclosed changes in outcomes in randomized controlled trials: an observational study. Ann Fam Med. 2009;7(6):542–6.
Article
PubMed
PubMed Central
Google Scholar
Harriman SL, Patel J. When are clinical trials registered? An analysis of prospective versus retrospective registration. Trials. 2016;17(1):1.
Article
Google Scholar
Kunath F, Grobe HR, Keck B, Rücker G, Wullich B, Antes G, Meerpohl JJ. Do urology journals enforce trial registration? A cross-sectional study of published trials. BMJ Open. 2011;1(2):e000430.
Article
PubMed
PubMed Central
Google Scholar
Mathieu S, Boutron I, Moher D, Altman DG, Ravaud P. Comparison of registered and published primary outcomes in randomized controlled trials. JAMA. 2009;302(9):977–84.
Article
CAS
PubMed
Google Scholar
Rasmussen N, Lee K, Bero L. Association of trial registration with the results and conclusions of published trials of new oncology drugs. Trials. 2009;10(1):1.
Article
Google Scholar
Rayhill ML, Sharon R, Burch R, Loder E. Registration status and outcome reporting of trials published in core headache medicine journals. Neurology. 2015;85(20):1789–94.
Article
PubMed
Google Scholar
Scott A, Rucklidge JJ, Mulder RT. Is mandatory prospective trial registration working to prevent publication of unregistered trials and selective outcome reporting? An observational study of five psychiatry journals that mandate prospective clinical trial registration. PLoS One. 2015;10(8):e0133718.
Article
PubMed
PubMed Central
CAS
Google Scholar
Huser V, Cimino JJ. Precision and negative predictive value of links between ClinicalTrials. gov and PubMed. AMIA Annu Symp Proc. 2012;2012:400–8.
PubMed
Google Scholar
Dwan K, Altman DG, Arnaiz JA, Bloom J, Chan A-W, Cronin E, Decullier E, Easterbrook PJ, Von Elm E, Gamble C. Systematic review of the empirical evidence of study publication bias and outcome reporting bias. PLoS One. 2008;3(8):e3081.
Article
PubMed
PubMed Central
CAS
Google Scholar
Wager E, Williams P. “Hardly worth the effort”? Medical journals’ policies and their editors’ and publishers’ views on trial registration and publication bias: quantitative and qualitative study. BMJ. 2013;347:f5248.
Article
PubMed
PubMed Central
Google Scholar
Tsafnat G, Glasziou P, Choong M, Dunn A, Galgani F, Coiera E. Systematic review automation technologies. Syst rev. 2014;3(1):74.
Article
PubMed
PubMed Central
Google Scholar
Sampson M, Shojania KG, Garritty C, Horsley T, Ocampo M, Moher D. Systematic reviews can be produced and published faster. J Clin Epidemiol. 2008;61(6):531–6.
Article
PubMed
Google Scholar
Shojania KG, Sampson M, Ansari MT, Ji J, Doucette S, Moher D. How quickly do systematic reviews go out of date? A survival analysis. Ann Intern Med. 2007;147(4):224–33.
Article
PubMed
Google Scholar
Zarin DA, Tse T. Sharing individual participant data (IPD) within the context of the trial reporting system (TRS). PLoS Med. 2016;13(1):e1001946.
Article
PubMed
PubMed Central
Google Scholar
Hartung D, Zarin D, Guise J-M, McDonagh M, Paynter R, Helfand M. Reporting discrepancies between the ClinicalTrials.gov results database and peer-reviewed publications. Ann Intern Med. 2014;160(7):477–83.
Article
PubMed
PubMed Central
Google Scholar
Bourgeois F, Murthy S, KD M. Outcome reporting among drug trials registered in ClinicalTrials.gov. Ann Intern Med. 2010;153(3):158–66.
Article
PubMed
PubMed Central
Google Scholar
Liu X, Li Y, Yin S, Song S. Result publication of Chinese trials in World Health Organization primary registries. PLoS One. 2010;5(9):e12676.
Article
PubMed
CAS
Google Scholar
Prenner J, Driscoll S, Fine H, Salz D, Roth D. Publication rates of registered clinical trials in macular degeneration. Retina. 2011;31(2):401–4.
Article
PubMed
Google Scholar
Wildt S, Krag A, Gluud L. Characteristics of randomised trials on diseases in the digestive system registered in ClinicalTrials.gov: a retrospective analysis. BMJ Open. 2011;1(2):e000309.
Article
PubMed
PubMed Central
Google Scholar
Gandhi R, Jan M, Smith H, Mahomed N, Bhandari M. Comparison of published orthopaedic trauma trials following registration in Clinicaltrials.gov. BMC Musculoskelet Disord. 2011;12(1):1.
Article
Google Scholar
Shamliyan T, Kane R. Clinical research involving children: registration, completeness, and publication. Pediatrics. 2012;129(5):e1291–300.
Article
PubMed
Google Scholar
Vawdrey D, Hripcsak G. Publication bias in clinical trials of electronic health records. J Biomed Inform. 2013;46(1):139–41.
Article
PubMed
Google Scholar
Stockmann C, Sherwin C, Koren G, Campbell S, Constance J, Linakis M, Balch A, Varner M, Spigarelli M. Characteristics and publication patterns of obstetric studies registered in ClinicalTrials.gov. J Clin Pharmacol. 2014;54(4):432–7.
Article
PubMed
Google Scholar
Jones C, Handler L, Crowell K, Keil L, Weaver M, Platts-Mills T. Non-publication of large randomized clinical trials: cross sectional analysis. BMJ. 2013;347:f6104.
Article
PubMed
PubMed Central
Google Scholar
Riveros C, Dechartres A, Perrodeau E, Haneef R, Boutron I, Ravaud P. Timing and completeness of trial results posted at ClinicalTrials.gov and published in journals. PLoS Med. 2013;10(12):e1001566.
Article
PubMed
PubMed Central
Google Scholar
Korevaar D, Ochodo E, Bossuyt P, Hooft L. Publication and reporting of test accuracy studies registered in ClinicalTrials.gov. Clin Chem. 2014;60(4):651–9.
Article
CAS
PubMed
Google Scholar
Munch T, Dufka F, Greene K, Smith S, Dworkin R, Rowbotham M. RReACT goes global: perils and pitfalls of constructing a global open-access database of registered analgesic clinical trials and trial results. PAIN®. 2014;155(7):1313–7.
Article
Google Scholar
Khan N, Singh M, Spencer H, Torralba K. Randomized controlled trials of rheumatoid arthritis registered at ClinicalTrials.gov: what gets published and when. Arthritis Rheum. 2014;66(10):2664–74.
Article
Google Scholar
Su C-X, Han M, Ren J, Li W-Y, Yue S-J, Hao Y-F, Liu J-P. Empirical evidence for outcome reporting bias in randomized clinical trials of acupuncture: comparison of registered records and subsequent publications. Trials. 2015;16(1):1.
Article
Google Scholar
Hakala A, Kimmelman J, Carlisle B, Freeman G, Fergusson D. Accessibility of trial reports for drugs stalling in development: a systematic assessment of registered trials. BMJ. 2015;350:h1116.
Article
PubMed
Google Scholar
Tang E, Ravaud P, Riveros C, Perrodeau E, Dechartres A. Comparison of serious adverse events posted at ClinicalTrials.gov and published in corresponding journal articles. BMC Med. 2015;13(1):1.
Article
CAS
Google Scholar
Boccia S, Rothman K, Panic N, Flacco M, Rosso A, Pastorino R, Manzoli L, La Vecchia C, Villari P, Boffetta P. Registration practices for observational studies on clinicaltrials.gov indicated low adherence. J Clin Epidemiol. 2016;70:176–82.
Article
PubMed
Google Scholar
Saito H, Gill C. How frequently do the results from completed US clinical trials enter the public domain?-a statistical analysis of the Clinicaltrials.gov database. PLoS One. 2014;9(7):e101826.
Article
PubMed
PubMed Central
CAS
Google Scholar
Son C, Tavakoli S, Bartanusz V. No publication bias in industry funded clinical trials of degenerative diseases of the spine. J Clin Neurosci. 2016;25:58–61.
Article
PubMed
Google Scholar
Baudart M, Ravaud P, Baron G, Dechartres A, Haneef R, Boutron I. Public availability of results of observational studies evaluating an intervention registered at ClinicalTrials.gov. BMC Med. 2016;14(1):1.
Article
Google Scholar
Chahal J, Tomescu S, Ravi B, Bach B, Ogilvie-Harris D, Mohamed N, Gandhi R. Publication of sports medicine––related randomized controlled trials registered in ClinicalTrials.gov. Am J Sports Med. 2012;40(9):1970–7.
Article
PubMed
Google Scholar
Manzoli L, Flacco M, D’Addario M, Capasso L, De Vito C, Marzuillo C, Villari P, Ioannidis JP. Non-publication and delayed publication of randomized trials on vaccines: survey. BMJ. 2014;348:g3058.
Article
PubMed
Google Scholar
Lebensburger J, Hilliard L, Pair L, Oster R, Howard T, Cutter G. Systematic review of interventional sickle cell trials registered in ClinicalTrials.gov. Clin Trials. 2015;12(6):575–83.
Article
PubMed
PubMed Central
Google Scholar
Smith H, Bhandari M, Mahomed N, Jan M, Gandhi R. Comparison of arthroplasty trial publications after registration in ClinicalTrials.gov. J Arthroplasty. 2012;27(7):1283–8.
Article
PubMed
Google Scholar
Guo S-W, Evers J. Lack of transparency of clinical trials on endometriosis. Obstet Gynecol. 2013;121(6):1281–90.
Article
CAS
PubMed
Google Scholar
Tsikkinis A, Cihoric N, Giannarini G, Hinz S, Briganti A, Wust P, Ost P, Ploussard G, Massard C, Surcel C. Clinical perspectives from randomized phase 3 trials on prostate cancer: an analysis of the Clinicaltrials.gov database. European Urology Focus. 2015;1(2):173–84.
Article
Google Scholar
Chen R, Desai N, Ross J, Zhang W, Chau K, Wayda B, Murugiah K, Lu D, Mittal A, Krumholz H. Publication and reporting of clinical trial results: cross sectional analysis across academic medical centers. BMJ. 2016;352:i637.
Ramsey S, Scoggins J. Commentary: practicing on the tip of an information iceberg? Evidence of underpublication of registered clinical trials in oncology. Oncologist. 2008;13(9):925–9.
Article
PubMed
PubMed Central
Google Scholar
Hurley M, Prayle A, Smyth A. Delayed publication of clinical trials in cystic fibrosis. J Cyst Fibros. 2012;11(1):14–7.
Article
CAS
PubMed
PubMed Central
Google Scholar
Ioannidis J, Manzoli L, De Vito C, D'Addario M, Villari P. Publication delay of randomized trials on 2009 influenza A (H1N1) vaccination. PLoS One. 2011;6(12):e28346.
Article
CAS
PubMed
PubMed Central
Google Scholar
Ohnmeiss D. The fate of prospective spine studies registered on www. ClinicalTrials.gov. Spine J. 2015;15(3):487–91.
Article
PubMed
Google Scholar
Gopal R, Yamashita T, Prochazka A. Research without results: inadequate public reporting of clinical trial results. Contemp Clin Trials. 2012;33(3):486–91.
Article
PubMed
Google Scholar
Lampert A, Hoffmann G, Ries M. Ten years after the International Committee of Medical Journal Editors’ Clinical Trial Registration Initiative, one quarter of phase 3 pediatric epilepsy clinical trials still remain unpublished: a cross sectional analysis. PLoS One. 2016;11(1):e0144973.
Article
PubMed
PubMed Central
CAS
Google Scholar
Gandhi G, Murad M, Fujiyoshi A, Mullan R, Flynn D, Elamin M, Swiglo B, Isley W, Guyatt G, Montori V. Patient-important outcomes in registered diabetes trials. JAMA. 2008;299(21):2543–9.
Article
CAS
PubMed
Google Scholar
Chowers M, Gottesman B, Leibovici L, Pielmeier U, Andreassen S, Paul M. Reporting of adverse events in randomized controlled trials of highly active antiretroviral therapy: systematic review. J Antimicrob Chemother. 2009;64(2):239–50.
Article
CAS
PubMed
Google Scholar
You B, Gan H, Pond G, Chen EX. Consistency in the analysis and reporting of primary end points in oncology randomized controlled trials from registration to publication: a systematic review. J Clin Oncol. 2011;30(2):210–6.
Article
PubMed
Google Scholar
Reveiz L, Bonfill X, Glujovsky D, Pinzon C, Asenjo-Lobos C, Cortes M, Canon M, Bardach A, Comandé D, Cardona AF. Trial registration in Latin America and the Caribbean’s: study of randomized trials published in 2010. J Clin Epidemiol. 2012;65(5):482–7.
Article
PubMed
Google Scholar
Nankervis H, Baibergenova A, Williams H, Thomas K. Prospective registration and outcome-reporting bias in randomized controlled trials of eczema treatments: a systematic review. J Investig Dermatol. 2012;132(12):2727–34.
Article
CAS
PubMed
PubMed Central
Google Scholar
Pinto R, Elkins M, Moseley A, Sherrington C, Herbert R, Maher C, Ferreira P, Ferreira ML. Many randomized trials of physical therapy interventions are not adequately registered: a survey of 200 published trials. Phys Ther. 2012;93(3):299–309.
Article
PubMed
Google Scholar
Hannink G, Gooszen H, Rovers M. Comparison of registered and published primary outcomes in randomized clinical trials of surgical interventions. Ann Surg. 2013;257(5):818–23.
Article
PubMed
Google Scholar
Rosenthal R, Dwan K. Comparison of randomized controlled trial registry entries and content of reports in surgery journals. Ann Surg. 2013;257(6):1007–15.
Article
PubMed
Google Scholar
Hopewell S, Collins G, Hirst A, Kirtley S, Tajar A, Gerry S, Altman D. Reporting characteristics of non-primary publications of results of randomized trials: a cross-sectional review. Trials. 2013;14(1):1.
Article
Google Scholar
Babu A, Veluswamy S, Rao P, Maiya A. Clinical trial registration in physical therapy journals: a cross-sectional study. Phys Ther. 2013;94(1):83–90.
Article
PubMed
Google Scholar
Lee S, Teoh P, Camm C, Agha R. Compliance of randomized controlled trials in trauma surgery with the CONSORT statement. J Trauma Acute Care Surg. 2013;75(4):562–72.
Article
PubMed
Google Scholar
Li X-Q, Yang G-L, Tao K-M, Zhang H-Q, Zhou Q-H, Ling C-Q. Comparison of registered and published primary outcomes in randomized controlled trials of gastroenterology and hepatology. Scand J Gastroenterol. 2013;48(12):1474–83.
Article
PubMed
Google Scholar
Norris S, Holmer H, Fu R, Ogden L, Viswanathan M, Abou‐Setta A. Clinical trial registries are of minimal use for identifying selective outcome and analysis reporting. Res Synthesis Methods. 2014;5(3):273–84.
Article
Google Scholar
Hardt J, Metzendorf M-I, Meerpohl J. Surgical trials and trial registers: a cross-sectional study of randomized controlled trials published in journals requiring trial registration in the author instructions. Trials. 2013;14(1):1.
Article
Google Scholar
Anand V, Scales D, Parshuram C, Kavanagh B. Registration and design alterations of clinical trials in critical care: a cross-sectional observational study. Intensive Care Med. 2014;40(5):700–22.
Article
PubMed
Google Scholar
Mann E, Nguyen N, Fleischer S, Meyer G. Compliance with trial registration in five core journals of clinical geriatrics: a survey of original publications on randomised controlled trials from 2008 to 2012. Age Ageing. 2014;43(6):872–6.
Article
PubMed
Google Scholar
Walker K, Stevenson G, Thornton J. Discrepancies between registration and publication of randomised controlled trials: an observational study. JRSM Open. 2014;5(5):2042533313517688.
Article
PubMed
PubMed Central
Google Scholar
Dekkers O, Cevallos M, Bührer J, Poncet A, Rau S, Perneger T, Egger M. Comparison of noninferiority margins reported in protocols and publications showed incomplete and inconsistent reporting. J Clin Epidemiol. 2015;68(5):510–7.
Article
PubMed
Google Scholar
Østervig R, Sonne A, Rasmussen L. Registration of randomized clinical trials––a challenge. Acta Anaesthesiol Scand. 2015;59(8):986–9.
Article
PubMed
Google Scholar
De Oliveira JG, Jung M, McCarthy R. Discrepancies between randomized controlled trial registry entries and content of corresponding manuscripts reported in anesthesiology journals. Anesth Analg. 2015;121(4):1030–3.
Article
PubMed
Google Scholar
Dal-Ré R, Ross J, Marušić A. Compliance with prospective trial registration guidance remained low in high-impact journals and has implications for primary end point reporting. J Clin Epidemiol. 2016;75:100–7.
Article
PubMed
Google Scholar
Reveiz L, Cortés-Jofré M, Lobos C, Nicita G, Ciapponi A, Garcìa-Dieguez M, Tellez D, Delgado M, Solà I, Ospina E. Influence of trial registration on reporting quality of randomized trials: study from highest ranked journals. J Clin Epidemiol. 2010;63(11):1216–22.
Article
CAS
PubMed
Google Scholar
Rongen J, Hannink G. Comparison of registered and published primary outcomes in randomized controlled trials of orthopaedic surgical interventions. J Bone Joint Surg. 2016;98(5):403–9.
Article
PubMed
Google Scholar
Vera-Badillo F, Shapiro R, Ocana A, Amir E, Tannock I. Bias in reporting of end points of efficacy and toxicity in randomized, clinical trials for women with breast cancer. Ann Oncol. 2013;24(5):1238–44.
Article
CAS
PubMed
Google Scholar
McGee R, Su M, Kelly P, Higgins G, Craig J, Webster A. Trial registration and declaration of registration by authors of randomized controlled trials. Transplantation. 2011;92(10):1094–100.
Article
PubMed
Google Scholar
Huić M, Marušić M, Marušić A. Completeness and changes in registered data and reporting bias of randomized controlled trials in ICMJE journals after trial registration policy. PLoS One. 2011;6(9):e25258.
Article
PubMed
PubMed Central
CAS
Google Scholar
Korevaar D, Bossuyt P, Hooft L. Infrequent and incomplete registration of test accuracy studies: analysis of recent study reports. BMJ Open. 2014;4(1):e004596.
Article
PubMed
PubMed Central
Google Scholar
Jones C, Platts-Mills T. Quality of registration for clinical trials published in emergency medicine journals. Ann Emerg Med. 2012;60(4):458–64.
Article
PubMed
Google Scholar
Smaïl-Faugeron V, Fron-Chabouis H, Durieux P. Clinical trial registration in oral health journals. J Dent Res. 2015;94(3 suppl):8S–13S.
Article
PubMed
PubMed Central
Google Scholar
Riehm K, Azar M, Thombs B. Transparency of outcome reporting and trial registration of randomized controlled trials in top psychosomatic and behavioral health journals: a 5-year follow-up. J Psychosom Res. 2015;79(1):1–12.
Article
PubMed
Google Scholar