The Single Arm Studies and What are the Alternatives?
Why are companies often running single arm studies in development?
What are the potential drawbacks and why is it not a binary choice between full comparative study and single arm trial?
What are solutions in between to find a balance between feasibility and rigour?
Single arm studies are a popular method for collecting data despite being critiqued for decades. It is a type of research design in which the investigator only observes one group of participants over time.
This design is often used when sponsors claim it would be unethical to randomise patients into different groups or when comparing two treatments would be too difficult.
However, there are several drawbacks associated with single arm studies. First of all, bias can easily creep into the results.
Anja Schiel - the most recognised regulatory statistician in Europe - and I discuss the potential drawbacks of running single arm studies, as well as ways to balance scientific rigour with feasibility.
Tune in while Anja and I give some of the great advice we have come up with. We also discuss the following points: