collaborators

1 paper

stat.ME2025

Group Sequential Design for Non-Proportional Hazards: Logrank, Weighted Logrank, and MaxCombo Methods

Yujie Zhao, Yilong Zhang, Larry Leon +1

Non-proportional hazards (NPH) are often observed in clinical trials with time-to-event endpoints. A common example is a long-term clinical trial with a delayed treatment effect in…