A semi-parametric analysis for identifying Scleroderma patients responsive to an anti-fibrotic agent

Jialiang Li, Weng Kee Wong

研究成果: Article同行評審

9 引文 斯高帕斯(Scopus)

摘要

In a recently concluded multi-center two-armed clinical trial for Scleroderma patients, results from a variety of analyses based on parametric models showed that late phase patients benefited from the bovine collagen treatment at 15 months and the placebo group did not. However, the cutoff time for defining early or late phase patients was somewhat arbitrary and sample size for late phase patients was small in the two groups. We apply a combination of semi-parametric and parametric approaches to further ascertain treatment efficacy and address modeling issues related to the choice of the cutoff and the scientific hypothesis of interest. We compare results with those obtained from parametric models and demonstrate how semi-parametric methods can help to better identify Scleroderma patients responsive to an anti-fibrotic agent.

原文English
頁(從 - 到)105-113
頁數9
期刊Contemporary Clinical Trials
30
發行號2
DOIs
出版狀態Published - 2009 3月

All Science Journal Classification (ASJC) codes

  • 藥學(醫學)

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