Patterns of treatment effects in subsets of patients in clinical trials.
Patterns of treatment effects in subsets of patients in clinical trials.
复制标题
临床试验中部分患者的治疗效果模式。
DOI:
10.1093/biostatistics/5.3.465
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发表时间:
2004
期刊:
影响因子:
--
通讯作者:
Gelber,RichardD
中科院分区:
文献类型:
--
作者:
Bonetti,Marco;Gelber,RichardD
We discuss the practice of examining patterns of treatment effects across overlapping patient subpopulations. In particular, we focus on the case in which patient subgroups are defined to contain patients having increasingly larger (or smaller) values of one particular covariate of interest, with the intent of exploring the possible interaction between treatment effect and that covariate. We formalize these subgroup approaches (STEPP: subpopulation treatment effect pattern plots) and implement them when treatment effect is defined as the difference in survival at a fixed time point between two treatment arms. The joint asymptotic distribution of the treatment effect estimates is derived, and used to construct simultaneous confidence bands around the estimates and to test the null hypothesis of no interaction. These methods are illustrated using data from a clinical trial conducted by the International Breast Cancer Study Group, which demonstrates the critical role of estrogen receptor content of the primary breast cancer for selecting appropriate adjuvant therapy. The considerations are also relevant for general subset analysis, since information from the same patients is typically used in the estimation of treatment effects within two or more subgroups of patients defined with respect to different covariates.
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DOI:
10.1093/oxfordjournals.jncimonographs.a003459
发表时间:
2001-12
期刊:
Journal of the National Cancer Institute. Monographs
影响因子:
--
作者:
A. Goldhirsch;R. Gelber;G. Yothers;R. Gray;S. Green;J. Bryant;S. Gelber;M. Castiglione‐Gertsch;A. Coates
通讯作者:
A. Goldhirsch;R. Gelber;G. Yothers;R. Gray;S. Green;J. Bryant;S. Gelber;M. Castiglione‐Gertsch;A. Coates
DOI:
--
发表时间:
1998
期刊:
Biometrics.
影响因子:
--
作者:
Kim,HT;Truong,YK
通讯作者:
Truong,YK
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
R. Betensky;D. Rabinowitz
通讯作者:
D. Rabinowitz
影响因子:
10.3
作者:
Fisher, B;Dignam, J;Margolese, RG
通讯作者:
Margolese, RG
DOI:
--
发表时间:
2002
期刊:
The Lancet Oncology
影响因子:
--
作者:
A. Coates;A. Goldhirsch;R. Gelber
通讯作者:
R. Gelber