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. Author manuscript; available in PMC: 2014 Jan 1.
Published in final edited form as: Stat Biopharm Res. 2013 Sep 11;5(3):10.1080/19466315.2013.795910. doi: 10.1080/19466315.2013.795910

Table 1.

References for Choice of λ Based on Examples from FDA Briefing Documents. λ*S is the value of λ between 0 and 1 for which the difference between the Synthesis(λ, p) and 95-95 margins would be zero, and λ*B equals the value of λ for which the difference between the proposed Bias-adjusted and 95-95 margins would be zero.

FDA Example Outcome Measure β̂PS,H v̂ar(β̂ PS,H) v̂ar(β̂ES) λ*B λ*S
Amifostine Tumor Response 0.16 0.0016 0.0007 0.33 0.43
Doripenem Risk Difference 0.42 0.023 0.0004 0.16 0.49
Etanercept Difference in Score 1.28 0.27 0.18 0.57 0.79
Everolimus Risk Difference 0.25 0.00085 0.0013 0.19 0.20
Lepirudin§ Log Odds Ratio 0.40 0.04 0.011 0.59 0.98
Pemetrexed (TAX317&320) Log Hazard Ratio 0.29 0.014 0.0097 0.56 0.76
Pemetrexed (TAX317) Log Hazard Ratio 0.58 0.054 0.0097 0.42 0.76
Raloxifene Log Relative Risk 0.76 0.033 0.012 0.30 0.41
Telmisartan (HOPE) Log Hazard Ratio 0.26 0.0025 0.0018 0.28 0.33
Telmisartan (All trials) Log Hazard Ratio 0.19 0.0034 0.0018 0.41 0.56
Febuxostat Response Rate Difference 0.38 0.0017 0.0007 0.14 0.16
Ximelagatran (All trials) Risk Difference 0.038 0.00013 0.088 0.59 0.59
Ximelagatran (All but EAFT) Risk Difference 0.028 0.000055 0.088 0.51 0.52
Zoledronic acid Risk Difference 0.13 0.0009 0.0009 0.34 0.40
§

This example comparing lepirudin versus heparin discussed at the May 2, 2000 meeting of the FDA Cardiovascular and Renal Drugs Advisory Committee Meeting was not found in the systematic search due to absense of search terms in the corresponding briefing documents.