Before revision: This type of study design is often employed when comparing a new treatment to an established medical standard of care, in situations where the new treatment is cheaper, safer , or more convenient than the reference treatment and would therefore be preferable if not appreciably less effective.
After revision: This type of study design is often employed when comparing a new treatment to an established medical standard of care in situations where the new treatment is cheaper, safer , or more convenient than the reference treatment and would therefore be preferable if not appreciably less effective.