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Study · Randomized controlled trial · 2004

1 result

Effect of antagonists vs agonists on in vitro fertilization outcome.

Check ML, Check JH, Choel JK, Davies E, Kiefer D

Clinical and experimental obstetrics & gynecology1 Jan 2004Cited by 15 (Europe PMC)

PMID15672958 (opens in a new tab)PepBankPUB-15672958

Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study1

1 result from studies that gave the peptide. 1 result from people.

  1. 01HumanRandomized controlled trialEfficacy outcome

    In women undergoing IVF, ganirelix and leuprolide regimens showed no differences in clinical, ongoing, delivered pregnancy rates or implantation rates.

    In plain wordsIn women undergoing IVF, pregnancy and implantation rates did not differ between ganirelix and leuprolide regimens.

    Peptide
    Ganirelix
    Outcome
    No significant changePregnancy and implantation rates
    Study

    n: not reported in source

    Comparator
    Leuprolide acetate
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    Dose not stated

    Source sentences

    Summary
    There were no differences found in clinical, ongoing, delivered pregnancy rates or implantation rates between groups.
    1 context sentence
    Summary · context
    Women needing IVF for conception were randomly assigned to 300 IU of gonadotropins with ganirelix used in the follicular phase when a follicle with a 14 mm average diameter was attained vs a regimen using leuprolide acetate from the mid-luteal phase of the previous cycle.

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Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    28 Oct 2026, 02:03 UTC

    Study results updated

  2. Version 1

    27 Oct 2026, 16:35 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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