Randomization FAQs (for study designers)

• What randomization algorithms are available?
  You can use simple or stratified randomization. You can create blocks in the list and assign them either dynamically or statically to sites, countries, or regions.
• What are the rules for randomization designs?
  You can create blinded studies with or without open-label extensions. You can also create open-label studies, as long as randomization occurs when the open-label period starts. A study can have one or more randomization events.
• When I create a randomization design, what fields should I choose?
  The fields you choose depend on whether the study is open-label, blinded, or both open-label and blinded.
• What is my workflow for setting up a study with multiple periods?
  You have to perform many of the same tasks, regardless of whether a study is blinded, open label, or both.