240 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universitätsmedizin GöttingenDE13 papers
- Medical University of ViennaAT10 papers
- Roche (Switzerland)CH10 papers
- University of GöttingenDE9 papers
- Pfizer (United States)US6 papers
- Tris Pharma (United States)US6 papers
- Lancaster UniversityGB5 papers
- MRC Biostatistics UnitGB5 papers
- Novartis (United States)US5 papers
- University Hospital MagdeburgDE5 papers
- Boehringer Ingelheim (Germany)DE4 papers
- Newcastle UniversityGB4 papers
5 papers · 2 filters
Optimal exact tests for multiple binary endpoints
Robin Ristl, Dong Xi, Ekkehard Glimm +1
In confirmatory clinical trials with small sample sizes, hypothesis tests based on asymptotic distributions are often not valid and exact non-parametric procedures are applied inst…
Using phase II data for the analysis of phase III studies: an application in rare diseases
Simon Wandel, Beat Neuenschwander, Tim Friede +1
Clinical research and drug development in orphan diseases is challenging, since large-scale randomized studies are difficult to conduct. Formally synthesizing the evidence is there…
Meta-analysis of two studies in the presence of heterogeneity with applications in rare diseases
Tim Friede, Christian Röver, Simon Wandel +1
Random-effects meta-analyses are used to combine evidence of treatment effects from multiple studies. Since treatment effects may vary across trials due to differences in study cha…
On weighted parametric tests
Dong Xi, Ekkehard Glimm, Willi Maurer +1
We describe a general framework for weighted parametric multiple test procedures based on the closure principle. We utilize general weighting strategies that can reflect complex st…
Meta-analysis of few small studies in orphan diseases
Tim Friede, Christian Röver, Simon Wandel +1
Meta-analyses in orphan diseases and small populations generally face particular problems including small numbers of studies, small study sizes, and heterogeneity of results. Howev…