Evaluation of gonadotropin-releasing hormone agonist and antagonist protocols on pregnancy outcomes in POSEIDON groups 3 and 4: A randomized controlled trial.

Int J Reprod Biomed · 2025 · PMC12186172 · PMID 40567909

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a slight trendno p-value reported

One study reported no significant differences in embryo quality and pregnancy outcomes, with a slight trend toward higher clinical pregnancy rates in the antagonist protocol (24).

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