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Study · Non-randomized trial · n = 10 · 1999

6 results

Effects of testosterone suppression in young men by the gonadotropin releasing hormone antagonist cetrorelix on plasma lipids, lipolytic enzymes, lipid transfer proteins, insulin, and leptin.

Büchter D, Behre HM, Kliesch S, Chirazi A, Nieschlag E, Assmann G, von Eckardstein A

Experimental and clinical endocrinology & diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association1 Jan 1999Cited by 18 (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 study6

6 results from studies that gave the peptide. 6 results from people.

  1. 01HumanNon-randomized trialEfficacy outcome

    In men, cetrorelix in groups C + C and C + P did not lead to considerable or consistent changes in LCAT, PLTP, CETP, lipoprotein lipase or hepatic lipase activities versus baseline and group P + P.

    In plain wordsIn men, neither cetrorelix regimen led to considerable or consistent changes in lipid enzyme and transfer protein activities compared with baseline and placebo.

    Peptide
    Cetrorelix
    Outcome
    Direction not reportedLipid enzyme and transfer protein activities by regimen
    Study

    n = 10

    Comparator
    Baseline and placebo
    Outcome group
    Lipids · Metabolic and weight
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Compared to baseline and group P + P, treatment with cetrorelix in groups C + C and C + P did not lead to considerable or consistent changes in the plasma activities of lecithin:cholesterol acyltransferase (LCAT), phospholipid transfer protein (PLTP), cholesteryl ester transfer protein (CETP), lipop…
    4 context sentences
    Summary · context
    We investigated in a pilot study the effect of testosterone suppression on lipoprotein metabolism, insulin, and leptin in 10 men who were treated either with cetrorelix, an antagonist of gonadotropin releasing hormone, or with placebo (P).
    Summary · context
    Group C + C (n = 4) was treated with 10 mg cetrorelix as daily subcutaneous injections for five days and with a subsequent injection of 60 mg cetrorelix depot.
    Summary · context
    Group C + P (n = 3) received 10 mg cetrorelix as daily intramuscular injections for five days and a subsequent injection of placebo depot.
    Summary · context
    Group P + P (n = 3) received placebo both as daily and depot injections.
  2. 02HumanNon-randomized trialEfficacy outcome

    In men, cetrorelix increased serum apo A-I, HDL subclass LpA-I, insulin and leptin relative to baseline.

    In plain wordsIn men, cetrorelix increased apo A-I, LpA-I, insulin and leptin compared with baseline.

    Peptide
    Cetrorelix
    Outcome
    IncreaseApo A-I, LpA-I, insulin and leptin
    Study

    n = 7

    Comparator
    Baseline
    Outcome group
    Metabolic pathways and metabolomics · Metabolic and weight
    Studied dose
    10 mg daily for five days, followed by 60 mg cetrorelix depot or placebo depotAs given in this study (human).

    Source sentences

    Summary
    Compared to baseline, treatment with cetrorelix increased serum levels of apolipoprotein (apo) A-I, HDL subclass LpA-I, insulin, and leptin.
    4 context sentences
    Summary · context
    We investigated in a pilot study the effect of testosterone suppression on lipoprotein metabolism, insulin, and leptin in 10 men who were treated either with cetrorelix, an antagonist of gonadotropin releasing hormone, or with placebo (P).
    Summary · context
    Group C + C (n = 4) was treated with 10 mg cetrorelix as daily subcutaneous injections for five days and with a subsequent injection of 60 mg cetrorelix depot.
    Summary · context
    Group C + P (n = 3) received 10 mg cetrorelix as daily intramuscular injections for five days and a subsequent injection of placebo depot.
    Summary · context
    Group P + P (n = 3) received placebo both as daily and depot injections.
  3. 03HumanNon-randomized trialEfficacy outcome

    In men, pooled cetrorelix regimens produced a small significant decrease in hepatic lipase activity.

    In plain wordsIn men, pooled cetrorelix regimens slightly lowered hepatic lipase activity.

    Peptide
    Cetrorelix
    Outcome
    DecreasePooled hepatic lipase activity
    Study

    n = 7

    Outcome group
    Lipids · Metabolic and weight
    Studied dose
    10 mg daily for five days, followed by 60 mg cetrorelix depot or placebo depotAs given in this study (human).

    Source sentences

    Summary
    Only the pooled data of groups C + C and C + P unraveled small but statistically significant decreases of HL and CETP activities in response to cetrorelix.
    5 context sentences
    Summary · context
    Compared to baseline and group P + P, treatment with cetrorelix in groups C + C and C + P did not lead to considerable or consistent changes in the plasma activities of lecithin:cholesterol acyltransferase (LCAT), phospholipid transfer protein (PLTP), cholesteryl ester transfer protein (CETP), lipop…
    Summary · context
    We investigated in a pilot study the effect of testosterone suppression on lipoprotein metabolism, insulin, and leptin in 10 men who were treated either with cetrorelix, an antagonist of gonadotropin releasing hormone, or with placebo (P).
    Summary · context
    Group C + C (n = 4) was treated with 10 mg cetrorelix as daily subcutaneous injections for five days and with a subsequent injection of 60 mg cetrorelix depot.
    Summary · context
    Group C + P (n = 3) received 10 mg cetrorelix as daily intramuscular injections for five days and a subsequent injection of placebo depot.
    Summary · context
    Group P + P (n = 3) received placebo both as daily and depot injections.
  4. 04HumanNon-randomized trialEfficacy outcome

    In men, pooled cetrorelix regimens produced a small significant decrease in CETP activity.

    In plain wordsIn men, pooled cetrorelix regimens slightly lowered CETP activity.

    Peptide
    Cetrorelix
    Outcome
    DecreasePooled CETP activity
    Study

    n = 7

    Outcome group
    Lipids · Metabolic and weight
    Studied dose
    10 mg daily for five days, followed by 60 mg cetrorelix depot or placebo depotAs given in this study (human).

    Source sentences

    Summary
    Only the pooled data of groups C + C and C + P unraveled small but statistically significant decreases of HL and CETP activities in response to cetrorelix.
    5 context sentences
    Summary · context
    Compared to baseline and group P + P, treatment with cetrorelix in groups C + C and C + P did not lead to considerable or consistent changes in the plasma activities of lecithin:cholesterol acyltransferase (LCAT), phospholipid transfer protein (PLTP), cholesteryl ester transfer protein (CETP), lipop…
    Summary · context
    We investigated in a pilot study the effect of testosterone suppression on lipoprotein metabolism, insulin, and leptin in 10 men who were treated either with cetrorelix, an antagonist of gonadotropin releasing hormone, or with placebo (P).
    Summary · context
    Group C + C (n = 4) was treated with 10 mg cetrorelix as daily subcutaneous injections for five days and with a subsequent injection of 60 mg cetrorelix depot.
    Summary · context
    Group C + P (n = 3) received 10 mg cetrorelix as daily intramuscular injections for five days and a subsequent injection of placebo depot.
    Summary · context
    Group P + P (n = 3) received placebo both as daily and depot injections.
  5. 05HumanNon-randomized trialEfficacy outcome

    In men, cetrorelix followed by cetrorelix depot reversibly suppressed testosterone to castrate levels for three weeks.

    In plain wordsIn men, cetrorelix followed by cetrorelix depot lowered testosterone to castrate levels for three weeks, reversibly.

    Peptide
    Cetrorelix
    Outcome
    DecreaseTestosterone suppression with depot
    Study

    n = 4

    Comparator
    Baseline
    Outcome group
    Sex hormones and fertility · Endocrine and hormones
    Studied dose
    10 mg daily for five days, then 60 mg depot · subcutaneous daily injectionsAs given in this study (human).

    Measurements

    Duration of testosterone suppression to castrate levels
    3 weeks
    Group C + C

    Source sentences

    Summary
    Treatment with cetrorelix reversibly suppressed testosterone to castrate levels for three weeks in group C + C and for one week in group C + P.
    4 context sentences
    Summary · context
    We investigated in a pilot study the effect of testosterone suppression on lipoprotein metabolism, insulin, and leptin in 10 men who were treated either with cetrorelix, an antagonist of gonadotropin releasing hormone, or with placebo (P).
    Summary · context
    Group C + C (n = 4) was treated with 10 mg cetrorelix as daily subcutaneous injections for five days and with a subsequent injection of 60 mg cetrorelix depot.
    Summary · context
    Group C + P (n = 3) received 10 mg cetrorelix as daily intramuscular injections for five days and a subsequent injection of placebo depot.
    Summary · context
    Group P + P (n = 3) received placebo both as daily and depot injections.
  6. 06HumanNon-randomized trialEfficacy outcome

    In men, cetrorelix followed by placebo depot reversibly suppressed testosterone to castrate levels for one week.

    In plain wordsIn men, cetrorelix followed by placebo depot lowered testosterone to castrate levels for one week, reversibly.

    Peptide
    Cetrorelix
    Outcome
    DecreaseTestosterone suppression without active depot
    Study

    n = 3

    Comparator
    Baseline
    Outcome group
    Sex hormones and fertility · Endocrine and hormones
    Studied dose
    10 mg daily for five days · intramuscular · five daysAs given in this study (human).

    Measurements

    Duration of testosterone suppression to castrate levels
    1 weeks
    Group C + P

    Source sentences

    Summary
    Treatment with cetrorelix reversibly suppressed testosterone to castrate levels for three weeks in group C + C and for one week in group C + P.
    4 context sentences
    Summary · context
    We investigated in a pilot study the effect of testosterone suppression on lipoprotein metabolism, insulin, and leptin in 10 men who were treated either with cetrorelix, an antagonist of gonadotropin releasing hormone, or with placebo (P).
    Summary · context
    Group C + C (n = 4) was treated with 10 mg cetrorelix as daily subcutaneous injections for five days and with a subsequent injection of 60 mg cetrorelix depot.
    Summary · context
    Group C + P (n = 3) received 10 mg cetrorelix as daily intramuscular injections for five days and a subsequent injection of placebo depot.
    Summary · context
    Group P + P (n = 3) received placebo both as daily and depot injections.

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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