Development of gatekeeping strategies in confirmatory clinical trials

This paper discusses multiplicity issues arising in confirmatory clinical trials with hierarchically ordered multiple objectives. In order to protect the overall type I error rate, multiple objectives are analyzed using multiple testing procedures. When the objectives are ordered and grouped in mult...

Full description

Saved in:
Bibliographic Details
Published in:Biometrical journal Vol. 53; no. 6; pp. 875 - 893
Main Authors: Dmitrienko, Alex, Millen, Brian A., Brechenmacher, Thomas, Paux, Gautier
Format: Journal Article
Language:English
Published: Weinheim WILEY-VCH Verlag 01-11-2011
WILEY‐VCH Verlag
Wiley - VCH Verlag GmbH & Co. KGaA
Subjects:
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Abstract This paper discusses multiplicity issues arising in confirmatory clinical trials with hierarchically ordered multiple objectives. In order to protect the overall type I error rate, multiple objectives are analyzed using multiple testing procedures. When the objectives are ordered and grouped in multiple families (e.g. families of primary and secondary endpoints), gatekeeping procedures are employed to account for this hierarchical structure. We discuss considerations arising in the process of building gatekeeping procedures, including proper use of relevant trial‐specific information and criteria for selecting gatekeeping procedures. The methods and principles discussed in this paper are illustrated using a clinical trial in patients with type II diabetes mellitus.
AbstractList This paper discusses multiplicity issues arising in confirmatory clinical trials with hierarchically ordered multiple objectives. In order to protect the overall type I error rate, multiple objectives are analyzed using multiple testing procedures. When the objectives are ordered and grouped in multiple families (e.g. families of primary and secondary endpoints), gatekeeping procedures are employed to account for this hierarchical structure. We discuss considerations arising in the process of building gatekeeping procedures, including proper use of relevant trial‐specific information and criteria for selecting gatekeeping procedures. The methods and principles discussed in this paper are illustrated using a clinical trial in patients with type II diabetes mellitus.
Author Millen, Brian A.
Paux, Gautier
Brechenmacher, Thomas
Dmitrienko, Alex
Author_xml – sequence: 1
  givenname: Alex
  surname: Dmitrienko
  fullname: Dmitrienko, Alex
  email: alexei@lilly.com
  organization: Eli Lilly and Company, Indianapolis, IN 46285, USA
– sequence: 2
  givenname: Brian A.
  surname: Millen
  fullname: Millen, Brian A.
  organization: Eli Lilly and Company, Indianapolis, IN 46285, USA
– sequence: 3
  givenname: Thomas
  surname: Brechenmacher
  fullname: Brechenmacher, Thomas
  organization: Dainippon Sumitomo Pharma Co., Ltd., 33-94 Enoki-Cho, Suita, Osaka 564-0053, Japan
– sequence: 4
  givenname: Gautier
  surname: Paux
  fullname: Paux, Gautier
  organization: Sanofi pasteur, 1541, Avenue Marcel Mérieux, 69280 Marcy-l'Étoile, France
BackLink https://www.ncbi.nlm.nih.gov/pubmed/22069199$$D View this record in MEDLINE/PubMed
BookMark eNqFkM1PGzEUxK0KVAL02mO1Ug-cNvhrbe-xpDSA-JAAFW6W13kbOezaqb2hzX9fo0BUcelp3ki_GT3NPtrxwQNCnwkeE4zpceP6xZhikg1m4gMakYqSkud7B40wo6xkiss9tJ_SIiM15vQj2qMUi5rU9Qidfodn6MKyBz8UoS3mZoAngKXz8yINMbu5g1Q4X9jgWxd7M4S4LmznvLOmK4boTJcO0W6bBT696gG6_3F6PzkrL2-m55Nvl6XlUoiSSktqbtisoRybGcWKSTKzvMIMOBVWtgoYqQRvjTGKEEUVbpumahuLm8ayA3S0qV3G8GsFadC9Sxa6zngIq6RrzAhXdcUz-fUduQir6PNvmnIphRRK0UyNN5SNIaUIrV5G15u41gTrl3n1y7x6O28OfHmtXTU9zLb4254ZqDfAb9fB-j91-uT86uLf8nKTdWmAP9usiU9aSCYr_XA91Y_qZHJ3-3OqFfsLyRmXTw
CitedBy_id crossref_primary_10_1038_tp_2016_152
crossref_primary_10_1080_10543406_2013_834920
crossref_primary_10_1177_1740774520944377
crossref_primary_10_1080_19466315_2013_807749
crossref_primary_10_5183_jjscs_1411001_213
crossref_primary_10_1002_sim_7506
crossref_primary_10_2217_cer_14_24
crossref_primary_10_1002_bimj_201200047
crossref_primary_10_1111_wrr_12630
crossref_primary_10_1002_sim_5642
crossref_primary_10_1002_bimj_201100258
crossref_primary_10_1016_S0140_6736_23_00061_2
crossref_primary_10_1080_10543406_2015_1074917
crossref_primary_10_1111_acel_12400
crossref_primary_10_1016_j_appet_2019_104397
crossref_primary_10_5691_jjb_36_S165
crossref_primary_10_1186_1471_244X_12_232
crossref_primary_10_1002_sim_6425
crossref_primary_10_1016_j_eclinm_2021_101261
crossref_primary_10_1097_MD_0000000000020085
crossref_primary_10_1002_sim_5537
crossref_primary_10_1089_cap_2016_0189
crossref_primary_10_1080_10543406_2015_1092032
crossref_primary_10_1002_sim_5990
crossref_primary_10_1002_sim_6985
crossref_primary_10_1016_S2213_8587_19_30151_2
crossref_primary_10_2139_ssrn_3924150
crossref_primary_10_1080_10543406_2017_1399900
crossref_primary_10_1177_026119291704500608
crossref_primary_10_1093_gerona_glv057
Cites_doi 10.1002/pst.301
10.1016/S0197-2456(97)00075-5
10.1080/10543406.2011.551333
10.1002/sim.3307
10.1201/9781584889854
10.1002/sim.4008
10.1080/10543406.2011.551334
10.1080/10543400802541693
10.1002/bimj.200610361
10.1002/9780470316672
10.1002/sim.3513
10.1002/sim.3495
10.1093/biomet/63.3.655
10.1080/01621459.1997.10473682
10.1198/jasa.2009.tm08538
10.1214/aos/1028144846
10.1016/S0378-3758(01)00077-5
10.1002/(SICI)1097-0258(19980930)17:18<2133::AID-SIM901>3.0.CO;2-2
10.1198/sbr.2010.09014
10.1002/pst.190
ContentType Journal Article
Copyright Copyright © 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Copyright Wiley - VCH Verlag GmbH & Co. KGaA Nov 2011
Copyright_xml – notice: Copyright © 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
– notice: 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
– notice: Copyright Wiley - VCH Verlag GmbH & Co. KGaA Nov 2011
DBID BSCLL
CGR
CUY
CVF
ECM
EIF
NPM
AAYXX
CITATION
7QO
8FD
FR3
K9.
P64
7X8
DOI 10.1002/bimj.201100036
DatabaseName Istex
Medline
MEDLINE
MEDLINE (Ovid)
MEDLINE
MEDLINE
PubMed
CrossRef
Biotechnology Research Abstracts
Technology Research Database
Engineering Research Database
ProQuest Health & Medical Complete (Alumni)
Biotechnology and BioEngineering Abstracts
MEDLINE - Academic
DatabaseTitle MEDLINE
Medline Complete
MEDLINE with Full Text
PubMed
MEDLINE (Ovid)
CrossRef
ProQuest Health & Medical Complete (Alumni)
Engineering Research Database
Biotechnology Research Abstracts
Technology Research Database
Biotechnology and BioEngineering Abstracts
MEDLINE - Academic
DatabaseTitleList CrossRef
MEDLINE - Academic

ProQuest Health & Medical Complete (Alumni)
MEDLINE
Database_xml – sequence: 1
  dbid: ECM
  name: MEDLINE
  url: https://search.ebscohost.com/login.aspx?direct=true&db=cmedm&site=ehost-live
  sourceTypes: Index Database
DeliveryMethod fulltext_linktorsrc
Discipline Biology
EISSN 1521-4036
EndPage 893
ExternalDocumentID 10_1002_bimj_201100036
22069199
BIMJ201100036
ark_67375_WNG_X8BCSRVG_8
Genre article
Journal Article
GroupedDBID ---
-~X
.3N
.GA
.Y3
05W
0R~
10A
1L6
1OB
1OC
1ZS
23N
3-9
31~
33P
3SF
3WU
4.4
50Y
50Z
51W
51X
52M
52N
52O
52P
52S
52T
52U
52W
52X
53G
5GY
5VS
66C
702
7PT
8-0
8-1
8-3
8-4
8-5
8UM
930
A03
AAESR
AAEVG
AAHHS
AANLZ
AAONW
AASGY
AAXRX
AAZKR
ABCQN
ABCUV
ABEML
ABIJN
ABJNI
ABPVW
ACAHQ
ACBWZ
ACCFJ
ACCZN
ACGFS
ACIWK
ACPOU
ACPRK
ACSCC
ACXBN
ACXQS
ADBBV
ADEOM
ADIZJ
ADKYN
ADMGS
ADOZA
ADXAS
ADZMN
ADZOD
AEEZP
AEIGN
AEIMD
AENEX
AEQDE
AEUQT
AEUYR
AFBPY
AFFPM
AFGKR
AFPWT
AFRAH
AFZJQ
AHBTC
AHMBA
AI.
AITYG
AIURR
AIWBW
AJBDE
AJXKR
ALAGY
ALMA_UNASSIGNED_HOLDINGS
ALUQN
AMBMR
AMYDB
ASPBG
ATUGU
AUFTA
AVWKF
AZBYB
AZFZN
AZVAB
BAFTC
BDRZF
BFHJK
BHBCM
BMNLL
BMXJE
BNHUX
BROTX
BRXPI
BSCLL
BY8
CS3
D-E
D-F
DCZOG
DPXWK
DR2
DRFUL
DRSTM
DU5
DUUFO
EBD
EBS
EJD
EMOBN
F00
F01
F04
F5P
FEDTE
G-S
G.N
GNP
GODZA
H.T
H.X
HBH
HF~
HGLYW
HHY
HHZ
HVGLF
HZ~
IX1
J0M
JPC
KQQ
LATKE
LAW
LC2
LC3
LEEKS
LH4
LITHE
LOXES
LP6
LP7
LUTES
LW6
LYRES
M67
MEWTI
MK4
MRFUL
MRSTM
MSFUL
MSSTM
MXFUL
MXSTM
N04
N05
N9A
NF~
O66
O9-
OIG
P2W
P2X
P4D
PALCI
PQQKQ
Q.N
Q11
QB0
QRW
R.K
RIWAO
ROL
RWI
RX1
RYL
SAMSI
SUPJJ
SV3
TN5
UB1
V2E
VH1
W8V
W99
WBKPD
WIB
WIH
WIK
WJL
WOHZO
WQJ
WRC
WUP
WWH
WXSBR
WYISQ
XBAML
XG1
XPP
XV2
Y6R
YHZ
ZZTAW
~IA
~WT
CGR
CUY
CVF
ECM
EIF
NPM
AAMNL
AAYXX
CITATION
7QO
8FD
FR3
K9.
P64
7X8
ID FETCH-LOGICAL-c4766-27c194a3db240ad208371dc4503e426c7f8e31564faaa8118280fbb5fbc0bbc3
IEDL.DBID 33P
ISSN 0323-3847
IngestDate Sat Aug 17 02:54:22 EDT 2024
Tue Nov 19 06:40:00 EST 2024
Thu Nov 21 21:56:39 EST 2024
Sat Sep 28 07:50:37 EDT 2024
Sat Aug 24 01:07:44 EDT 2024
Wed Oct 30 09:47:48 EDT 2024
IsPeerReviewed true
IsScholarly true
Issue 6
Language English
License 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
LinkModel DirectLink
MergedId FETCHMERGED-LOGICAL-c4766-27c194a3db240ad208371dc4503e426c7f8e31564faaa8118280fbb5fbc0bbc3
Notes ark:/67375/WNG-X8BCSRVG-8
ArticleID:BIMJ201100036
istex:A760F5835060629F6308ED4D39744DE69E72AB41
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
PMID 22069199
PQID 2477676882
PQPubID 105592
PageCount 19
ParticipantIDs proquest_miscellaneous_903148954
proquest_journals_2477676882
crossref_primary_10_1002_bimj_201100036
pubmed_primary_22069199
wiley_primary_10_1002_bimj_201100036_BIMJ201100036
istex_primary_ark_67375_WNG_X8BCSRVG_8
PublicationCentury 2000
PublicationDate November 2011
PublicationDateYYYYMMDD 2011-11-01
PublicationDate_xml – month: 11
  year: 2011
  text: November 2011
PublicationDecade 2010
PublicationPlace Weinheim
PublicationPlace_xml – name: Weinheim
– name: Germany
PublicationTitle Biometrical journal
PublicationTitleAlternate Biom. J
PublicationYear 2011
Publisher WILEY-VCH Verlag
WILEY‐VCH Verlag
Wiley - VCH Verlag GmbH & Co. KGaA
Publisher_xml – name: WILEY-VCH Verlag
– name: WILEY‐VCH Verlag
– name: Wiley - VCH Verlag GmbH & Co. KGaA
References Bauer, P., Röhmel, J., Maurer, W. and Hothorn, L. ( 1998). Testing strategies in multi-dose experiments including active control. Statistics in Medicine 17, 2133-2146.
Westfall, P. H. and Krishen, A. ( 2001). Optimally weighted, fixed sequence, and gatekeeping multiple testing procedures. Journal of Statistical Planning and Inference 99, 25-40.
Dmitrienko, A., Offen, W., Wang, O. and Xiao, D. ( 2006). Gatekeeping procedures in dose-response clinical trials based on the Dunnett test. Pharmaceutical Statistics 5, 19-28.
Marcus, R., Peritz, E. and Gabriel, K. R. ( 1976). On closed testing procedures with special reference to ordered analysis of variance. Biometrika 63, 655-660.
Senn, S. and Bretz, F. ( 2007). Power and sample size when multiple endpoints are considered. Pharmaceutical Statistics 6, 161-170.
Dmitrienko, A. and Tamhane, A. C. ( 2011). Mixtures of multiple testing procedures for gatekeeping applications in clinical trials. Statistics in Medicine 30, 1473-1488.
Sarkar, S. K. ( 1998). Some probability inequalities for censored MTP2 random variables: a proof of the Simes conjecture. Annals of Statistics 26, 494-504.
Guilbaud, O. ( 2007). Bonferroni parallel gatekeeping - tansparent generalizations, adjusted p-values, and short direct proofs. Biometrical Journal 49, 917-927.
Millen, B. and Dmitrienko, A. ( 2011). Chain procedures: a class of flexible closed testing procedures with clinical trial applications. Statistics in Biopharmaceutical Research 3, 14-30.
Burman, C.-F., Sonesson, C. and Guilbaud, O. ( 2009). A recycling framework for the construction of Bonferroni-based multiple tests. Statistics in Medicine 28, 739-761.
O'Neill, R. T. ( 1997). Secondary endpoints cannot be validly analyzed if the primary endpoint does not demonstrate clear statistical significance. Controlled Clinical Trials 18, 550-556.
Sarkar, S. and Chang, C. K. ( 1997). Simes' method for multiple hypothesis testing with positively dependent test statistics. Journal of the American Statistical Association 92, 1601-1608.
Bretz, F., Maurer, W., Brannath, W. and Posch, M. ( 2009). A graphical approach to sequentially rejective multiple test procedures. Statistics in Medicine 28, 586-604.
Hochberg, Y. and Tamhane, A. C. ( 1987). Multiple Comparison Procedures. Wiley, New York.
Hung, H. M. J. and Wang, S. J. ( 2009). Some controversial multiple testing problems in regulatory applications. Journal of Biopharmaceutical Statistics 19, 1-11.
Dmitrienko, A., Kordzakhia, G. and Tamhane, A. C. ( 2011). Multistage and mixture gatekeeping procedures in clinical trials. Journal of Biopharmaceutical Statistics 21, 726-747.
Brechenmacher, T., Xu, J., Dmitrienko, A. and Tamhane, A. C. ( 2011). A mixture gatekeeping procedure based on the Hommel test for clinical trial applications. Journal of Biopharmaceutical Statistics 21, 748-767.
Dmitrienko, A., Tamhane, A. C., Liu, L. and Wiens, B. L. ( 2008). A note on tree gatekeeping procedures in clinical trials. Statistics in Medicine 27, 3446-3451.
Liu, Y. and Hsu, J. C. ( 2009). Testing for efficacy in primary and secondary endpoints by partitioning decision paths. Journal of the American Statistical Association 104, 1661-1670.
1998; 26
1976; 63
1998; 17
1997; 92
2008; 27
2009
1987
2011; 30
1997; 18
2006; 5
2007; 6
2011; 21
1995
2001; 99
2009; 19
2011; 3
2009; 104
2009; 28
2007; 49
e_1_2_10_12_1
e_1_2_10_23_1
e_1_2_10_9_1
e_1_2_10_13_1
e_1_2_10_10_1
e_1_2_10_21_1
e_1_2_10_11_1
e_1_2_10_22_1
e_1_2_10_20_1
Maurer W. (e_1_2_10_17_1) 1995
e_1_2_10_2_1
e_1_2_10_4_1
e_1_2_10_18_1
e_1_2_10_3_1
e_1_2_10_19_1
e_1_2_10_6_1
e_1_2_10_16_1
e_1_2_10_5_1
e_1_2_10_8_1
e_1_2_10_14_1
e_1_2_10_7_1
e_1_2_10_15_1
References_xml – year: 2009
– volume: 92
  start-page: 1601
  year: 1997
  end-page: 1608
  article-title: Simes' method for multiple hypothesis testing with positively dependent test statistics
  publication-title: Journal of the American Statistical Association
– volume: 21
  start-page: 726
  year: 2011
  end-page: 747
  article-title: Multistage and mixture gatekeeping procedures in clinical trials
  publication-title: Journal of Biopharmaceutical Statistics
– volume: 27
  start-page: 3446
  year: 2008
  end-page: 3451
  article-title: A note on tree gatekeeping procedures in clinical trials
  publication-title: Statistics in Medicine
– volume: 17
  start-page: 2133
  year: 1998
  end-page: 2146
  article-title: Testing strategies in multi‐dose experiments including active control
  publication-title: Statistics in Medicine
– volume: 28
  start-page: 586
  year: 2009
  end-page: 604
  article-title: A graphical approach to sequentially rejective multiple test procedures
  publication-title: Statistics in Medicine
– volume: 5
  start-page: 19
  year: 2006
  end-page: 28
  article-title: Gatekeeping procedures in dose‐response clinical trials based on the Dunnett test
  publication-title: Pharmaceutical Statistics
– volume: 30
  start-page: 1473
  year: 2011
  end-page: 1488
  article-title: Mixtures of multiple testing procedures for gatekeeping applications in clinical trials
  publication-title: Statistics in Medicine
– volume: 19
  start-page: 1
  year: 2009
  end-page: 11
  article-title: Some controversial multiple testing problems in regulatory applications
  publication-title: Journal of Biopharmaceutical Statistics
– year: 1987
– volume: 18
  start-page: 550
  year: 1997
  end-page: 556
  article-title: Secondary endpoints cannot be validly analyzed if the primary endpoint does not demonstrate clear statistical significance
  publication-title: Controlled Clinical Trials
– volume: 26
  start-page: 494
  year: 1998
  end-page: 504
  article-title: Some probability inequalities for censored MTP2 random variables: a proof of the Simes conjecture
  publication-title: Annals of Statistics
– volume: 6
  start-page: 161
  year: 2007
  end-page: 170
  article-title: Power and sample size when multiple endpoints are considered
  publication-title: Pharmaceutical Statistics
– year: 1995
– volume: 99
  start-page: 25
  year: 2001
  end-page: 40
  article-title: Optimally weighted, fixed sequence, and gatekeeping multiple testing procedures
  publication-title: Journal of Statistical Planning and Inference
– volume: 28
  start-page: 739
  year: 2009
  end-page: 761
  article-title: A recycling framework for the construction of Bonferroni‐based multiple tests
  publication-title: Statistics in Medicine
– volume: 49
  start-page: 917
  year: 2007
  end-page: 927
  article-title: Bonferroni parallel gatekeeping – tansparent generalizations, adjusted ‐values, and short direct proofs
  publication-title: Biometrical Journal
– volume: 3
  start-page: 14
  year: 2011
  end-page: 30
  article-title: Chain procedures: a class of flexible closed testing procedures with clinical trial applications
  publication-title: Statistics in Biopharmaceutical Research
– volume: 104
  start-page: 1661
  year: 2009
  end-page: 1670
  article-title: Testing for efficacy in primary and secondary endpoints by partitioning decision paths
  publication-title: Journal of the American Statistical Association
– volume: 63
  start-page: 655
  year: 1976
  end-page: 660
  article-title: On closed testing procedures with special reference to ordered analysis of variance
  publication-title: Biometrika
– volume: 21
  start-page: 748
  year: 2011
  end-page: 767
  article-title: A mixture gatekeeping procedure based on the Hommel test for clinical trial applications
  publication-title: Journal of Biopharmaceutical Statistics
– ident: e_1_2_10_22_1
  doi: 10.1002/pst.301
– ident: e_1_2_10_19_1
  doi: 10.1016/S0197-2456(97)00075-5
– ident: e_1_2_10_7_1
  doi: 10.1080/10543406.2011.551333
– ident: e_1_2_10_11_1
  doi: 10.1002/sim.3307
– volume-title: Biometrie in der Chemisch‐in‐Pharmazeutischen Industrie. 6
  year: 1995
  ident: e_1_2_10_17_1
  contributor:
    fullname: Maurer W.
– ident: e_1_2_10_9_1
  doi: 10.1201/9781584889854
– ident: e_1_2_10_10_1
  doi: 10.1002/sim.4008
– ident: e_1_2_10_3_1
  doi: 10.1080/10543406.2011.551334
– ident: e_1_2_10_14_1
  doi: 10.1080/10543400802541693
– ident: e_1_2_10_6_1
  doi: 10.1201/9781584889854
– ident: e_1_2_10_12_1
  doi: 10.1002/bimj.200610361
– ident: e_1_2_10_13_1
  doi: 10.1002/9780470316672
– ident: e_1_2_10_5_1
  doi: 10.1002/sim.3513
– ident: e_1_2_10_4_1
  doi: 10.1002/sim.3495
– ident: e_1_2_10_16_1
  doi: 10.1093/biomet/63.3.655
– ident: e_1_2_10_21_1
  doi: 10.1080/01621459.1997.10473682
– ident: e_1_2_10_15_1
  doi: 10.1198/jasa.2009.tm08538
– ident: e_1_2_10_20_1
  doi: 10.1214/aos/1028144846
– ident: e_1_2_10_23_1
  doi: 10.1016/S0378-3758(01)00077-5
– ident: e_1_2_10_2_1
  doi: 10.1002/(SICI)1097-0258(19980930)17:18<2133::AID-SIM901>3.0.CO;2-2
– ident: e_1_2_10_18_1
  doi: 10.1198/sbr.2010.09014
– ident: e_1_2_10_8_1
  doi: 10.1002/pst.190
SSID ssj0009042
Score 2.141697
Snippet This paper discusses multiplicity issues arising in confirmatory clinical trials with hierarchically ordered multiple objectives. In order to protect the...
SourceID proquest
crossref
pubmed
wiley
istex
SourceType Aggregation Database
Index Database
Publisher
StartPage 875
SubjectTerms Biometry
Clinical trials
Clinical Trials as Topic - methods
Diabetes mellitus
Diabetes Mellitus, Type 2 - drug therapy
Error analysis
Familywise error rate
Goals
Humans
Hypoglycemic Agents - adverse effects
Hypoglycemic Agents - therapeutic use
Multiple tests
Power
Structural hierarchy
Testing procedures
Title Development of gatekeeping strategies in confirmatory clinical trials
URI https://api.istex.fr/ark:/67375/WNG-X8BCSRVG-8/fulltext.pdf
https://onlinelibrary.wiley.com/doi/abs/10.1002%2Fbimj.201100036
https://www.ncbi.nlm.nih.gov/pubmed/22069199
https://www.proquest.com/docview/2477676882
https://search.proquest.com/docview/903148954
Volume 53
hasFullText 1
inHoldings 1
isFullTextHit
isPrint
link http://sdu.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwpV3dT9swED-NTki8DMbHlgGTH9D2FJHYju088lHokKimgYA3y3YcqVRLUdNK8N_PdppAJSQk9hglVqw7n-93Z9_vAA6Ycmpmmc9_cRJTYVQsrE1jpkRuVGoosT7fMbjiwztx2vc0OV0Vf8MP0SXcvGWE_dobuNL14TNpqB79vQ8UnIFTxW3CLlQINRzk9zPrbkKbYwRMYuL24Za1McGHy8OXvNJHL-DH1yDnMoINLuhs_f8nvwGfFvATHTXr5TN8sNUmrDYNKZ-2oP_iDhGalMjn2MbW-poqVM9aVgk0qpALo8uRh7uT6RNqyytR6AFSb8P1Wf_6ZBAvGi3EhnLGYsxNmlNFCu38uyqwg2U8LQzNEmKdBze8FJZ4VplSKSV8SCKSUuus1CbR2pAd6FWTyn4FpNNMM8EyrCmjiXXxknIYhHHONaWFYBH8bOUsHxo6DdkQJ2PpZSI7mUTwI6ih-0xNx_4SGs_k7fBc3onjk6s_N-dSRLDX6kku7K-WmHqWIubChwhQ99pZjj8OUZWdzGuZe-Z-kWc0gi-Nert_YZywPM3zCHDQ4htzlce_Li-6p2_vGbQLayFbHaoc96A3m87tPqzUxfx7WNL_AKlT8kM
link.rule.ids 315,782,786,1408,27933,27934,46064,46488
linkProvider Wiley-Blackwell
linkToHtml http://sdu.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwrV1Lb9QwEB7RVgguvEsDBXxAcIqa2I7tHNuy7RbaFaIr6M2yHUdaKrLVpivRf4_H2aSshISEOEaJFWsenpnPns8Ab4UJahYF4l-SpVw5kyrv81QYVTqTO8484h3jczm5UB9GSJOz3_fCdPwQA-CGnhHXa3RwBKT3bllD7ezH98jBGUlVNmCLi2CN2MXBPt_y7ma820igLGVhJe55GzO6tz5-LS5toYh__inpXM9hYxA6evgfpv8IHqwyULLfmcxjuOObJ3C3u5Py5imMfjtGROY1QZjt0ntsqyLtdU8sQWYNCZV0PcOMd764IX2HJYnXgLTPYHo0mh6O09VdC6njUoiUSpeX3LDKhhBvKhoyM5lXjhcZ8yGIO1krz5BYpjbGKKxKVFZbW9TWZdY6tg2bzbzxO0BsXlihREFt0EfmQ8lkQhoipJSW80qJBN73gtZXHaOG7riTqUaZ6EEmCbyLehg-M4tLPIcmC_1tcqwv1MHh-Zevx1olsNsrSq9csNWUI1GRCBVEAmR4HZwHd0RM4-fLVpdI3q_KgifwvNPv8C9KM1HmZZkAjWr8y1z1wcnZx-Hpxb8MegP3xtOzU316Mvn0Eu5H8Do2Pe7C5vVi6V_BRlstX0f7_gUNbvZr
linkToPdf http://sdu.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwpV1LT9wwEB4VUKte-qZNC60PVXuKSGzHdo4FdoE-VqiglptlO460Rc2iDSuVf1-PswmshITUHqPEijXj8Xwz9nwD8F6YoGZRYP5LspQrZ1LlfZ4Ko0pncseZx3zH4YmcnKn9EdLkDFX8HT_EkHBDy4j7NRr4RVXvXJOG2unvX5GCM3KqrMEGD1gc2fMZO76m3c14d45AWcrCRtzTNmZ0Z3X8ilvaQAn_uQ1zrkLY6IPGj_9_9k_g0RJ_kk_dgnkK93zzDO53HSmvnsPoxiUiMqsJJtnOvceiKtJe9rQSZNqQEEfXU8S7s_kV6esrSWwC0r6A0_HodO8wXXZaSB2XQqRUurzkhlU2OHhT0YDLZF45XmTMBxfuZK08Q1qZ2hijMCZRWW1tUVuXWevYJqw3s8a_AmLzwgolCmq54JkPAZMJIERIKS3nlRIJfOzlrC86Pg3dMSdTjTLRg0wS-BDVMHxm5ud4C00W-ufkQJ-p3b2T7z8OtEpgq9eTXhpgqylHmiIR4ocEyPA6mA6eh5jGzxatLpG6X5UFT-Blp97hX5RmoszLMgEatXjHXPXu0bfPw9Prfxn0Dh4c74_116PJlzfwMGauY8XjFqxfzhd-G9baavE2ru6_Bor1EQ
openUrl ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Development+of+gatekeeping+strategies+in+confirmatory+clinical+trials&rft.jtitle=Biometrical+journal&rft.au=Dmitrienko%2C+Alex&rft.au=Millen%2C+Brian+A.&rft.au=Brechenmacher%2C+Thomas&rft.au=Paux%2C+Gautier&rft.date=2011-11-01&rft.pub=WILEY%E2%80%90VCH+Verlag&rft.issn=0323-3847&rft.eissn=1521-4036&rft.volume=53&rft.issue=6&rft.spage=875&rft.epage=893&rft_id=info:doi/10.1002%2Fbimj.201100036&rft.externalDBID=10.1002%252Fbimj.201100036&rft.externalDocID=BIMJ201100036
thumbnail_l http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/lc.gif&issn=0323-3847&client=summon
thumbnail_m http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/mc.gif&issn=0323-3847&client=summon
thumbnail_s http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/sc.gif&issn=0323-3847&client=summon