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human
Edit this sentence to eliminate unnecessary words and make it briefer.

"In order to determine whether a certain medication is effective in treating a specific condition, researchers must conduct rigorous clinical trials that involve recruiting a large sample of participants, administering the drug under controlled conditions, tracking their progress over a period of time, and analyzing the data to determine whether there is a statistically significant improvement in health outcomes."
gpt
Clinical trials are necessary to determine whether a medication is effective; researchers recruit a large sample, administer the drug, track progress, and analyze data for improvement in health outcomes.