Fractional Biostatistician · Clinical Data Scientist

Regulatory-grade statistics, without the full-time hire.

William L. (Bill) Pelkey, Ph.D., works with medical device and pharmaceutical sponsors on a fractional or project basis: SAPs, CSRs, TFLs, and submission support for IDE, PMA, 510(k), and NDA programs. Former FDA-CDRH statistics reviewer, with 25+ years on the sponsor side.

Freedom From Atrial Fibrillation Recurrence, 12 Months Kaplan-Meier estimate
100 90 80 70 60 50 Free from recurrence, % Device 78.4% Control 57.5% 0 3 6 9 12 Months since procedure Number at risk Device 150 138 127 118 108 Control 75 64 55 48 41
Illustrative data, 2:1 randomization. HR 0.48 (95% CI 0.30–0.77); log-rank p = 0.002. Tick marks show censored patients. Censoring rules, the analysis population, and the test all belong in the SAP before the first patient is enrolled.
25+ yearsPharma, biotech, and medical device
FDA-CDRHFormer Statistics SME reviewer
NDA & PMALead statistician on successful submissions
SAS & R20+ years of SAS; daily R
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LocationLoveland, Colorado · working with sponsors nationwide