36 citations · 49 across the 5 of their papers we have counts for
5 papers
"6 choose 4": A framework to understand and facilitate discussion of strategies for overall survival safety monitoring
Godwin Yung, Kaspar Rufibach, Marcel Wolbers +2
Advances in anticancer therapies have significantly contributed to declining death rates in certain disease and clinical settings. However, they have also made it difficult to powe…
Balancing events, not patients, maximizes power of the logrank test: and other insights on unequal randomization in survival trials
Godwin Yung, Kaspar Rufibach, Marcel Wolbers +2
We revisit the question of what randomization ratio (RR) maximizes power of the logrank test in event-driven survival trials under proportional hazards (PH). By comparing three app…
Considerations for Master Protocols Using External Controls
Jie Chen, Xiaoyun, Li +7
There has been an increasing use of master protocols in oncology clinical trials because of its efficiency and flexibility to accelerate cancer drug development. Depending on the s…
Duration of and time to response in oncology clinical trials from the perspective of the estimand framework
Hans-Jochen Weber, Stephen Corson, Jiang Li +6
Duration of response (DOR) and time to response (TTR) are typically evaluated as secondary endpoints in early-stage clinical studies in oncology when efficacy is assessed by the be…
Assessing the Impact of COVID-19 on the Objective and Analysis of Oncology Clinical Trials -- Application of the Estimand Framework
Evgeny Degtyarev, Kaspar Rufibach, Yue Shentu +10
COVID-19 outbreak has rapidly evolved into a global pandemic. The impact of COVID-19 on patient journeys in oncology represents a new risk to interpretation of trial results and it…