Cited by 255Statistical Methods in Clinical TrialsMeta-analysis and systematic reviewsStatistical Methods in Epidemiology

When to stop a clinical trial.

Open access
Pocock, S. J.·1992·BMJ

Abstract

When to

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Research works printed but not linked: 23

  1. Ware JH. Investigating therapies of po)tentially great bencfit: EC1() (with discussion). Statistical Science 1989;4:298-340.
  2. I)oll R. I)evelopmcnt of cotntrolled trials in prevcitive and thcrapetitic medicine. J Biosoc Sci 1991;23:365-78.
  3. Yusut S, Collins R, Pletit R, et al. Intravetnous and itntractrotsary fibritolvytic therapy in acute myocardial infarction: overview olf rcsults oni mortality, reinfarction and side effects from 33 randomizcd controlled trials. Eur Heartj 1985;6:556-85.
  4. Freedman B. Equilx)ise and the ethics otf clinical rcscarch. N l.ngl J Med 1987;317:141-5.
  5. Mcl'hcrson K. Statistics: the problem oif examining accumulating data morc than onc. N Engl,7Med 1974;290:501-2.
  6. IPocock SJ. Clinical tnrals: a practical approach. Chichester: Wiley, 1983.
  7. Ill Armitage P'. Sequential medical tnrals. Oxford: Blackwell, 1975.
  8. Fleming rR, Harrington DP, O'Brien PaC. D)esigns for grouLp scqtuential tests. Controlled Clin 7rials 1984;5:348-61.
  9. O'Brien PC, Fleming rR. A multiple testing pro(edurc fo0r clinical trials. Bitometrics 1979;35:549-56.
  10. West of Scotland Coronary Plrevention Study (iroup. A coronary primary prevention stuvtvof 6000 Scottish men aged 45-64 ycars: studydcesign.7Clin Epidemiol (in press).
  11. TIannock IF, Boves N1. When is a cancer trcatmcnt worthwhilc .V lEngl 7 .tIcd 1990;323:989-90.
  12. Souhami RL, Spiro SG, CLillen M. Chcmrothcrapv antd radiatioii thcralpy as BMJ VOLUME 305 25 JULY 1992 239 on 11 July 2023 by guest. Protected by copyright. http://www.bmj.com/ BMJ: first published as 10.1136/bmj.305.6847.235 on 25 July 1992. Downloaded from compared with radiation therapy in stage III noni-snmall cc1l luIg calnccr. N Enmg1 .ied 1991;324:1136.
  13. Ilropert KI, D)illman RO, Seagrcen SL. Chemotherapy anid radiation therapy as comparcd with radiation therapy in stage IIIll ioi-sntall ccll luilg calnccr. NlEniV/, Mcd 1991;324:1 136-7.
  14. 1Pocock Sj, Hughes Nil). P'ractical problems in intcrim analyses, with particuilar regard to estimation. Controlled Clinl lurials 1989;10:2209-15.
  15. IPcto R, I'ikc MC, Armitage P. BSreslow NE, Cox 1)R, Howard SV, et al. Design and analysis of ratidoinised controlled trials rcquirinig prolonged observation ofl each patient. 1. liitroductitoi and dcsign. Br J Cancer 1976;34:585-6 12.
  16. Cardiac Arrhythmia Stippression 'T'rial Investigators. Preliminary report: efiect of encainide atid flccainide oii mortality in a randimized trial of arrhythmia suppressioti after mnocardial infarction. N Etigl J Mted 1989;321 :406-12.
  17. I'awitan Y, Hallstrom A. Statistical ititeritii monitorinig if the cardiac arrhythmia suppressiott trial. Stat Mtd 1990;9: 1081-90.
  18. IPACK 'I'rial Group. Prevention of atherosclerotic complications: colitrolled trial of ketanserin. BM] 1989;298:424-30.
  19. Pocock SJ, Hughes MD. Estimation issues in cliical trials atid overviews. StatAed 1990;9:657-7 1.
  20. Errington RD, Ashbv D, Gore SM, Abrams KR, Mivint S, Boiinett DE, et al. High energ) neutron treatment for pelvic cancers: study stopped becatise of incrcased mortality. RMJ 1991;302:10145-51.
  21. Lan KK, Simon R, Halperin M. Stochastically curtailed sampling in long- term clinical trials. Communicatiots In Statistics-Theory and Methods 1984;13:2339-53.
  22. Volberding PA, Lagakos SW, Koch MA, Pettinelli C, Myers MW, Booth DK, et al. Zidovudine in asymptomatic HIV infection: a controlled trial in persons with fewer than 500 CD4-positive cells per cubic millimeter. N Englj Med 1990;322:941-9.
  23. Steering Committee of the Physicians' Health Study Research Group. Final report on the aspirin component of the ongoing physicians' health study. N Englj3Med 1989;321:129-35.

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Authors
Pocock, S. J.
Affiliations
London School of Hygiene & Tropical Medicine (GB)
Corresponding author
Pocock, S. J.
Venue
BMJ
Publisher
BMJ
Published
1992-07-25
Volume
305
Issue
6847
Pages
235-240
ISSN
  • 0007-1447 (ISSN-L)
  • 0959-8138
  • 1468-5833
OpenAlex
W1968817382
Cited by
255
References
21
Citations by year
2025: 2 · 2024: 1 · 2023: 5 · 2022: 5 · 2021: 5 · 2020: 3 · 2019: 10 · 2018: 4 · 2017: 6 · 2016: 12 · 2015: 10 · 2014: 20 · 2013: 8 · 2012: 12
FWCI
10.53
Type
journal article
Language
en
Open access
Locations
  • BMJ (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
  • DigitalGeorgetown (Georgetown University Library) (submittedVersion)
Topics
  • Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods in Clinical Trials
  • Social Sciences › Decision Sciences › Statistics, Probability and Uncertainty › Meta-analysis and systematic reviews
  • Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods in Epidemiology
Keywords
clinical trial termination, stopping rules, trial ethics
MeSH terms
Clinical Trials as Topic, Data Interpretation, Statistical, Decision Making, Ethics, Medical, Risk Assessment, Information Dissemination, Editorial Policies, Uncertainty, Therapeutic Human Experimentation

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