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Study · Randomized controlled trial · n = 60 · 2001

7 results

Dose-finding study for the use of long-acting gonadotrophin-releasing hormone analogues prior to ovarian stimulation for IVF.

Yim SF, Lok IH, Cheung LP, Briton-Jones CM, Chiu TT, Haines CJ

Human reproduction (Oxford, England)1 Mar 2001Cited by 16 (Europe PMC)

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 study7

7 results from studies that gave the peptide. 7 results from people.

  1. 01HumanRandomized controlled trialEfficacy outcome

    In IVF patients, conventional-dose triptorelin suppressed LH more than low-dose triptorelin at 2 weeks.

    In plain wordsIn IVF patients, conventional-dose triptorelin lowered LH more than low-dose triptorelin at 2 weeks.

    Outcome
    DecreaseLH at 2 weeks
    Study

    n = 60

    Comparator
    Triptorelin 1.87 mg
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.75 mgAs given in this study (human).

    Measurements

    LH
    2.2 IU/l
    conventional dose at 2 weeks
    LH
    3.5 IU/l
    low dose at 2 weeks

    Source sentences

    Summary
    Mean concentrations of LH were 2.2 +/- 1.0 and 1.1 +/- 0.6 IU/l in the conventional dose group and 3.5 +/- 5.5 and 2.7 +/- 1.9 IU/l in the low dose group (P < 0.05 at 2 and 3 weeks).
    1 context sentence
    Summary · context
    Sixty patients were randomized to receive either 3.75 mg (conventional dose) or 1.87 mg (low dose) triptorelin prior to ovarian stimulation for IVF.
  2. 02HumanRandomized controlled trialEfficacy outcome

    In IVF patients, conventional-dose triptorelin suppressed LH more than low-dose triptorelin at 3 weeks.

    In plain wordsIn IVF patients, conventional-dose triptorelin lowered LH more than low-dose triptorelin at 3 weeks.

    Outcome
    DecreaseLH at 3 weeks
    Study

    n = 60

    Comparator
    Triptorelin 1.87 mg
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.75 mgAs given in this study (human).

    Measurements

    LH
    1.1 IU/l
    conventional dose at 3 weeks
    LH
    2.7 IU/l
    low dose at 3 weeks

    Source sentences

    Summary
    Mean concentrations of LH were 2.2 +/- 1.0 and 1.1 +/- 0.6 IU/l in the conventional dose group and 3.5 +/- 5.5 and 2.7 +/- 1.9 IU/l in the low dose group (P < 0.05 at 2 and 3 weeks).
    1 context sentence
    Summary · context
    Sixty patients were randomized to receive either 3.75 mg (conventional dose) or 1.87 mg (low dose) triptorelin prior to ovarian stimulation for IVF.
  3. 03HumanRandomized controlled trialEfficacy outcome

    In IVF patients, gonadotrophin doses did not differ significantly between conventional-dose and low-dose triptorelin.

    In plain wordsIn IVF patients, gonadotrophin doses did not differ significantly between conventional-dose and low-dose triptorelin.

    Outcome
    No significant changeGonadotrophin dose
    Study

    n = 60

    Comparator
    Triptorelin 1.87 mg
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.75 mgAs given in this study (human).

    Source sentences

    Summary
    There were no significant differences between the doses of gonadotrophins used, the number of oocytes and embryos available and the time to resumption of menses, nor in the pregnancy rates.
    1 context sentence
    Summary · context
    Sixty patients were randomized to receive either 3.75 mg (conventional dose) or 1.87 mg (low dose) triptorelin prior to ovarian stimulation for IVF.
  4. 04HumanRandomized controlled trialEfficacy outcome

    In IVF patients, available oocyte counts did not differ significantly between conventional-dose and low-dose triptorelin.

    In plain wordsIn IVF patients, available oocyte counts did not differ significantly between conventional-dose and low-dose triptorelin.

    Outcome
    No significant changeOocytes available
    Study

    n = 60

    Comparator
    Triptorelin 1.87 mg
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.75 mgAs given in this study (human).

    Source sentences

    Summary
    There were no significant differences between the doses of gonadotrophins used, the number of oocytes and embryos available and the time to resumption of menses, nor in the pregnancy rates.
    1 context sentence
    Summary · context
    Sixty patients were randomized to receive either 3.75 mg (conventional dose) or 1.87 mg (low dose) triptorelin prior to ovarian stimulation for IVF.
  5. 05HumanRandomized controlled trialEfficacy outcome

    In IVF patients, available embryo counts did not differ significantly between conventional-dose and low-dose triptorelin.

    In plain wordsIn IVF patients, available embryo counts did not differ significantly between conventional-dose and low-dose triptorelin.

    Outcome
    No significant changeEmbryos available
    Study

    n = 60

    Comparator
    Triptorelin 1.87 mg
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.75 mgAs given in this study (human).

    Source sentences

    Summary
    There were no significant differences between the doses of gonadotrophins used, the number of oocytes and embryos available and the time to resumption of menses, nor in the pregnancy rates.
    1 context sentence
    Summary · context
    Sixty patients were randomized to receive either 3.75 mg (conventional dose) or 1.87 mg (low dose) triptorelin prior to ovarian stimulation for IVF.
  6. 06HumanRandomized controlled trialEfficacy outcome

    In IVF patients, time to menses did not differ significantly between conventional-dose and low-dose triptorelin.

    In plain wordsIn IVF patients, time to menses did not differ significantly between conventional-dose and low-dose triptorelin.

    Outcome
    No significant changeTime to resumption of menses
    Study

    n = 60

    Comparator
    Triptorelin 1.87 mg
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.75 mgAs given in this study (human).

    Source sentences

    Summary
    There were no significant differences between the doses of gonadotrophins used, the number of oocytes and embryos available and the time to resumption of menses, nor in the pregnancy rates.
    1 context sentence
    Summary · context
    Sixty patients were randomized to receive either 3.75 mg (conventional dose) or 1.87 mg (low dose) triptorelin prior to ovarian stimulation for IVF.
  7. 07HumanRandomized controlled trialEfficacy outcome

    In IVF patients, pregnancy rates did not differ significantly between conventional-dose and low-dose triptorelin.

    In plain wordsIn IVF patients, pregnancy rates did not differ significantly between conventional-dose and low-dose triptorelin.

    Outcome
    No significant changePregnancy rate
    Study

    n = 60

    Comparator
    Triptorelin 1.87 mg
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.75 mgAs given in this study (human).

    Source sentences

    Summary
    There were no significant differences between the doses of gonadotrophins used, the number of oocytes and embryos available and the time to resumption of menses, nor in the pregnancy rates.
    1 context sentence
    Summary · context
    Sixty patients were randomized to receive either 3.75 mg (conventional dose) or 1.87 mg (low dose) triptorelin prior to ovarian stimulation for IVF.

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

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

    22 Oct 2026, 02:26 UTC

    Study results updated

  2. Version 1

    21 Oct 2026, 18:59 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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