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Study · Animal study (in vivo) · rat · 1989

13 results

Prolonged suppression of rat testis function by a depot formulation of Zoladex, a GnRH agonist.

Ward JA, Furr BJ, Valcaccia B, Curry B, Bardin CW, Gunsalus GL, Morris ID

Journal of andrology1 Nov 1989Cited by 17 (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 study13

13 results from studies that gave the peptide. No result from this study comes from people.

  1. 01AnimalAnimal study (in vivo)Activity measurement

    In male rats, goserelin caused sustained decreases in testis weight, apparent within two weeks.

    In plain wordsIn rats, goserelin reduced testis weight within two weeks.

    Peptide
    Goserelin
    Outcome
    DecreaseTestis weight
    Study

    ratn: not reported in source

    Male rats
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.6 mg/depot every 28 days · subcutaneous · 2-24 wkAs given in this study (rat).

    Source sentences

    Summary
    Administration of Zoladex resulted in sustained decreases in weight of the testis, epididymis, seminal vesicles and prostate gland.
    2 context sentences
    Summary · context
    The decreases were apparent within 2 wk of initiating treatment.
    Summary · context
    A sustained-release formulation of a potent gonadotropin-releasing hormone (GnRH) agonist, Zoladex (D-Ser(But),6 Aza Gly10-GnRH; ICI 118,630; goserelin), was administered subcutaneously (3.6 mg/depot) to male rats once every 28 days for 2-24 wk to determine the extent to which pituitary-testis funct…
  2. 02AnimalAnimal study (in vivo)Activity measurement

    In male rats, goserelin caused sustained decreases in epididymis weight, apparent within two weeks.

    In plain wordsIn rats, goserelin reduced epididymis weight within two weeks.

    Peptide
    Goserelin
    Outcome
    DecreaseEpididymis weight
    Study

    ratn: not reported in source

    Male rats
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.6 mg/depot every 28 days · subcutaneous · 2-24 wkAs given in this study (rat).

    Source sentences

    Summary
    Administration of Zoladex resulted in sustained decreases in weight of the testis, epididymis, seminal vesicles and prostate gland.
    2 context sentences
    Summary · context
    The decreases were apparent within 2 wk of initiating treatment.
    Summary · context
    A sustained-release formulation of a potent gonadotropin-releasing hormone (GnRH) agonist, Zoladex (D-Ser(But),6 Aza Gly10-GnRH; ICI 118,630; goserelin), was administered subcutaneously (3.6 mg/depot) to male rats once every 28 days for 2-24 wk to determine the extent to which pituitary-testis funct…
  3. 03AnimalAnimal study (in vivo)Activity measurement

    In male rats, goserelin caused sustained decreases in seminal vesicle weight, apparent within two weeks.

    In plain wordsIn rats, goserelin reduced seminal vesicle weight within two weeks.

    Peptide
    Goserelin
    Outcome
    DecreaseSeminal vesicle weight
    Study

    ratn: not reported in source

    Male rats
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.6 mg/depot every 28 days · subcutaneous · 2-24 wkAs given in this study (rat).

    Source sentences

    Summary
    Administration of Zoladex resulted in sustained decreases in weight of the testis, epididymis, seminal vesicles and prostate gland.
    2 context sentences
    Summary · context
    The decreases were apparent within 2 wk of initiating treatment.
    Summary · context
    A sustained-release formulation of a potent gonadotropin-releasing hormone (GnRH) agonist, Zoladex (D-Ser(But),6 Aza Gly10-GnRH; ICI 118,630; goserelin), was administered subcutaneously (3.6 mg/depot) to male rats once every 28 days for 2-24 wk to determine the extent to which pituitary-testis funct…
  4. 04AnimalAnimal study (in vivo)Activity measurement

    In male rats, goserelin caused sustained decreases in prostate weight, apparent within two weeks.

    In plain wordsIn rats, goserelin reduced prostate weight within two weeks.

    Peptide
    Goserelin
    Outcome
    DecreaseProstate weight
    Study

    ratn: not reported in source

    Male rats
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.6 mg/depot every 28 days · subcutaneous · 2-24 wkAs given in this study (rat).

    Source sentences

    Summary
    Administration of Zoladex resulted in sustained decreases in weight of the testis, epididymis, seminal vesicles and prostate gland.
    2 context sentences
    Summary · context
    The decreases were apparent within 2 wk of initiating treatment.
    Summary · context
    A sustained-release formulation of a potent gonadotropin-releasing hormone (GnRH) agonist, Zoladex (D-Ser(But),6 Aza Gly10-GnRH; ICI 118,630; goserelin), was administered subcutaneously (3.6 mg/depot) to male rats once every 28 days for 2-24 wk to determine the extent to which pituitary-testis funct…
  5. 05AnimalAnimal study (in vivo)Safety outcome

    In male rats, goserelin produced patchy seminiferous tubule degeneration that did not progress beyond the degree seen after one month.

    In plain wordsIn rats, goserelin caused patchy testicular tubule damage that did not progress beyond the degree seen after one month.

    Peptide
    Goserelin
    Outcome
    IncreaseSeminiferous tubule degeneration
    Study

    ratn: not reported in source

    Male rats
    Outcome group
    Adverse events · Reproductive and sexual health
    Studied dose
    3.6 mg/depot every 28 days · subcutaneous · 2-24 wkAs given in this study (rat).

    Source sentences

    Summary
    Patchy degeneration of the seminiferous tubules and atrophy of the Leydig cells were observed, but did not progress beyond the degree observed after 1 month of treatment.
    1 context sentence
    Summary · context
    A sustained-release formulation of a potent gonadotropin-releasing hormone (GnRH) agonist, Zoladex (D-Ser(But),6 Aza Gly10-GnRH; ICI 118,630; goserelin), was administered subcutaneously (3.6 mg/depot) to male rats once every 28 days for 2-24 wk to determine the extent to which pituitary-testis funct…
  6. 06AnimalAnimal study (in vivo)Safety outcome

    In male rats, goserelin produced Leydig cell atrophy that did not progress beyond the degree seen after one month.

    In plain wordsIn rats, goserelin caused Leydig cell shrinkage that did not progress beyond the degree seen after one month.

    Peptide
    Goserelin
    Outcome
    IncreaseLeydig cell atrophy
    Study

    ratn: not reported in source

    Male rats
    Outcome group
    Adverse events · Reproductive and sexual health
    Studied dose
    3.6 mg/depot every 28 days · subcutaneous · 2-24 wkAs given in this study (rat).

    Source sentences

    Summary
    Patchy degeneration of the seminiferous tubules and atrophy of the Leydig cells were observed, but did not progress beyond the degree observed after 1 month of treatment.
    1 context sentence
    Summary · context
    A sustained-release formulation of a potent gonadotropin-releasing hormone (GnRH) agonist, Zoladex (D-Ser(But),6 Aza Gly10-GnRH; ICI 118,630; goserelin), was administered subcutaneously (3.6 mg/depot) to male rats once every 28 days for 2-24 wk to determine the extent to which pituitary-testis funct…
  7. 07AnimalAnimal study (in vivo)Activity measurement

    In male rats, goserelin markedly depressed serum testosterone after two weeks.

    In plain wordsIn rats, goserelin markedly reduced blood testosterone after two weeks.

    Peptide
    Goserelin
    Outcome
    DecreaseSerum testosterone
    Study

    ratn: not reported in source

    Male rats
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.6 mg/depot every 28 days · subcutaneous · 2-24 wkAs given in this study (rat).

    Source sentences

    Summary
    Serum and testis testosterone were markedly depressed after 2 wk of treatment, as was testis [125I]hCG binding.
    1 context sentence
    Summary · context
    A sustained-release formulation of a potent gonadotropin-releasing hormone (GnRH) agonist, Zoladex (D-Ser(But),6 Aza Gly10-GnRH; ICI 118,630; goserelin), was administered subcutaneously (3.6 mg/depot) to male rats once every 28 days for 2-24 wk to determine the extent to which pituitary-testis funct…
  8. 08AnimalAnimal study (in vivo)Activity measurement

    In male rats, goserelin markedly depressed testis testosterone after two weeks.

    In plain wordsIn rats, goserelin markedly reduced testis testosterone after two weeks.

    Peptide
    Goserelin
    Outcome
    DecreaseTestis testosterone
    Study

    ratn: not reported in source

    Male rats
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.6 mg/depot every 28 days · subcutaneous · 2-24 wkAs given in this study (rat).

    Source sentences

    Summary
    Serum and testis testosterone were markedly depressed after 2 wk of treatment, as was testis [125I]hCG binding.
    1 context sentence
    Summary · context
    A sustained-release formulation of a potent gonadotropin-releasing hormone (GnRH) agonist, Zoladex (D-Ser(But),6 Aza Gly10-GnRH; ICI 118,630; goserelin), was administered subcutaneously (3.6 mg/depot) to male rats once every 28 days for 2-24 wk to determine the extent to which pituitary-testis funct…
  9. 09AnimalAnimal study (in vivo)Activity measurement

    In male rats, goserelin depressed testis hCG binding after two weeks.

    In plain wordsIn rats, goserelin reduced testis hCG binding after two weeks.

    Peptide
    Goserelin
    Outcome
    DecreaseTestis hCG binding
    Study

    ratn: not reported in source

    Male rats
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.6 mg/depot every 28 days · subcutaneous · 2-24 wkAs given in this study (rat).

    Source sentences

    Summary
    Serum and testis testosterone were markedly depressed after 2 wk of treatment, as was testis [125I]hCG binding.
    1 context sentence
    Summary · context
    A sustained-release formulation of a potent gonadotropin-releasing hormone (GnRH) agonist, Zoladex (D-Ser(But),6 Aza Gly10-GnRH; ICI 118,630; goserelin), was administered subcutaneously (3.6 mg/depot) to male rats once every 28 days for 2-24 wk to determine the extent to which pituitary-testis funct…
  10. 10AnimalAnimal study (in vivo)Activity measurement

    In male rats, goserelin reduced serum gonadotropins.

    In plain wordsIn rats, goserelin reduced blood gonadotropins.

    Peptide
    Goserelin
    Outcome
    DecreaseSerum gonadotropins
    Study

    ratn: not reported in source

    Male rats
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.6 mg/depot every 28 days · subcutaneous · 2-24 wkAs given in this study (rat).

    Source sentences

    Summary
    Serum gonadotropins were also reduced by treatment.
    1 context sentence
    Summary · context
    A sustained-release formulation of a potent gonadotropin-releasing hormone (GnRH) agonist, Zoladex (D-Ser(But),6 Aza Gly10-GnRH; ICI 118,630; goserelin), was administered subcutaneously (3.6 mg/depot) to male rats once every 28 days for 2-24 wk to determine the extent to which pituitary-testis funct…
  11. 11AnimalAnimal study (in vivo)Activity measurement

    In male rats, goserelin elevated serum androgen binding protein.

    In plain wordsIn rats, goserelin increased blood androgen binding protein.

    Peptide
    Goserelin
    Outcome
    IncreaseSerum androgen binding protein
    Study

    ratn: not reported in source

    Male rats
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.6 mg/depot every 28 days · subcutaneous · 2-24 wkAs given in this study (rat).

    Source sentences

    Summary
    Serum androgen binding protein (ABP) was elevated, testis ABP content remained unchanged, and epididymal ABP content was reduced.
    1 context sentence
    Summary · context
    A sustained-release formulation of a potent gonadotropin-releasing hormone (GnRH) agonist, Zoladex (D-Ser(But),6 Aza Gly10-GnRH; ICI 118,630; goserelin), was administered subcutaneously (3.6 mg/depot) to male rats once every 28 days for 2-24 wk to determine the extent to which pituitary-testis funct…
  12. 12AnimalAnimal study (in vivo)Activity measurement

    In male rats, testis androgen binding protein content remained unchanged during goserelin treatment.

    In plain wordsIn rats, testis androgen binding protein remained unchanged during goserelin treatment.

    Peptide
    Goserelin
    Outcome
    No significant changeTestis androgen binding protein
    Study

    ratn: not reported in source

    Male rats
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.6 mg/depot every 28 days · subcutaneous · 2-24 wkAs given in this study (rat).

    Source sentences

    Summary
    Serum androgen binding protein (ABP) was elevated, testis ABP content remained unchanged, and epididymal ABP content was reduced.
    1 context sentence
    Summary · context
    A sustained-release formulation of a potent gonadotropin-releasing hormone (GnRH) agonist, Zoladex (D-Ser(But),6 Aza Gly10-GnRH; ICI 118,630; goserelin), was administered subcutaneously (3.6 mg/depot) to male rats once every 28 days for 2-24 wk to determine the extent to which pituitary-testis funct…
  13. 13AnimalAnimal study (in vivo)Activity measurement

    In male rats, goserelin reduced epididymal androgen binding protein content.

    In plain wordsIn rats, goserelin reduced epididymal androgen binding protein.

    Peptide
    Goserelin
    Outcome
    DecreaseEpididymal androgen binding protein
    Study

    ratn: not reported in source

    Male rats
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    3.6 mg/depot every 28 days · subcutaneous · 2-24 wkAs given in this study (rat).

    Source sentences

    Summary
    Serum androgen binding protein (ABP) was elevated, testis ABP content remained unchanged, and epididymal ABP content was reduced.
    1 context sentence
    Summary · context
    A sustained-release formulation of a potent gonadotropin-releasing hormone (GnRH) agonist, Zoladex (D-Ser(But),6 Aza Gly10-GnRH; ICI 118,630; goserelin), was administered subcutaneously (3.6 mg/depot) to male rats once every 28 days for 2-24 wk to determine the extent to which pituitary-testis funct…

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

    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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