what's the difference between randomized controlled trials and prospective randomized trials?

Question

Is one better than the other in terms of medical research?

Answer 1

I think you are really asking about the meaning of a prospective trial. Both Retrospective (looking backward) and Prospective (looking forward) trials can be randomized and controlled.

Prospective trials generally offer more solid evidence than retrospective trials. Randomization and controls help to validate the legitimacy of the findings.

Hope this helps. Best wishes.