Several methods are available for sample size calculation for clinical trials when survival curves are to be compared using the logrank statistic. We discuss advantages and disadvantages of some of these methods, and present simulation results under exponential, proportional hazards and non-proportional hazard situations.
No takes yet. Share an insight, caveat, or question.
Lakatos et al. (1992) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: