Types of Trial Design

View

3. Randomised Controlled Clinical Trial Designs

3.1. Factorial Design

In factorial design, it is assumed that there is no interaction between medicines.

Factorial design attempts to evaluate two interventions compared to a control in one trial.

Each participant receives two different treatments: x and y; x and control; y and control; control and control.

Image explaining factorial design. Each participant receives two different treatments: x & y; x & con; y & cont; cont & cont