What's the difference between randomized controlled trials and prospective randomized trials?
Answers:
I think you are really asking in the order of the meaning of a prospective trial. Both Retrospective (looking backward) and Prospective (looking forward) trials can be randomized and controlled.
Prospective trials mostly offer more solid evidence than retrospective trials. Randomization and controls sustain to validate the legitimacy of the findings.
Hope this help. Best wishes.
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