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Study · Non-randomized trial · n = 134 · 2006

8 results

Efficacy and safety of histrelin subdermal implant in patients with advanced prostate cancer.

Schlegel PN

The Journal of urology1 Apr 2006Cited by 39 (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 study8

8 results from studies that gave the peptide. 8 results from people.

  1. 01HumanNon-randomized trialEfficacy outcome

    In men with advanced prostate cancer, PSA decreased by an average of 90% from 83.6 ng/ml by week 16 with histrelin (p = 0.0001).

    In plain wordsIn men with advanced prostate cancer, PSA decreased by an average of 90% by week 16 with histrelin.

    Peptide
    Histrelin
    Outcome
    DecreasePSA decrease at week 16
    Study

    n: not reported in source

    Analysis
    Secondary
    Outcome group
    Tumor growth · Cancer
    Studied dose
    50 mg · subdermal implantAs given in this study (human).

    Measurements

    Average PSA decrease by week 16
    90%
    from baseline
    Baseline PSA
    83.6 ng/ml
    baseline

    Source sentences

    Summary
    By week 16 PSA had decreased an average of 90% from a baseline of 83.6 ng/ml (p = 0.0001).
    1 context sentence
    Summary · context
    This open label, multicenter study was done to evaluate the efficacy and safety of the gonadotropin hormone-releasing hormone agonist histrelin acetate administered as a 50 mg subdermal implant in men with advanced prostatic cancer.
  2. 02HumanNon-randomized trialEfficacy outcome

    In men with advanced prostate cancer, 79% had a complete PSA response by week 60 with histrelin (p <0.0175).

    In plain wordsIn men with advanced prostate cancer, 79% had a complete PSA response by week 60 with histrelin.

    Peptide
    Histrelin
    Outcome
    Not applicableComplete PSA response
    Study

    n: not reported in source

    Analysis
    Secondary
    Outcome group
    Tumor growth · Cancer
    Studied dose
    50 mg · subdermal implantAs given in this study (human).

    Measurements

    Patients with complete PSA response by week 60
    79%
    patients

    Source sentences

    Summary
    By week 60, 79% of patients had a complete PSA response (p <0.0175).
    1 context sentence
    Summary · context
    This open label, multicenter study was done to evaluate the efficacy and safety of the gonadotropin hormone-releasing hormone agonist histrelin acetate administered as a 50 mg subdermal implant in men with advanced prostatic cancer.
  3. 03HumanNon-randomized trialEfficacy outcome

    In men with advanced prostate cancer receiving histrelin, 100% of 134 evaluable patients achieved chemical castration at week 4.

    In plain wordsAll 134 men with available results achieved chemical castration at week 4 with histrelin.

    Peptide
    Histrelin
    Outcome
    Not applicableChemical castration at week 4
    Study

    n = 134

    Outcome group
    Sex hormones and fertility · Endocrine and hormones
    Studied dose
    50 mg · subdermal implantAs given in this study (human).

    Measurements

    Patients achieving chemical castration at week 4
    100%
    134 patients with week 4 testosterone levels

    Source sentences

    Summary
    Of the 134 patients with week 4 testosterone levels available 100% achieved chemical castration.
    2 context sentences
    Summary · context
    Efficacy was determined by the proportion of patients who attained chemical castration (serum testosterone 50 ng/dl or less) at weeks 4 through 52.
    Summary · context
    This open label, multicenter study was done to evaluate the efficacy and safety of the gonadotropin hormone-releasing hormone agonist histrelin acetate administered as a 50 mg subdermal implant in men with advanced prostatic cancer.
  4. 04HumanNon-randomized trialEfficacy outcome

    In men with advanced prostate cancer, histrelin maintained testosterone suppression through 52 weeks in more than 99% of patients.

    In plain wordsHistrelin maintained testosterone suppression through 52 weeks in more than 99% of men with advanced prostate cancer.

    Peptide
    Histrelin
    Outcome
    Not applicableTestosterone suppression through week 52
    Study

    n: not reported in source

    Outcome group
    Sex hormones and fertility · Endocrine and hormones
    Studied dose
    50 mg · subdermal implantAs given in this study (human).

    Measurements

    Patients with testosterone suppression maintained through 52 weeks
    > 99%
    patients after implantation

    Source sentences

    Summary
    Testosterone suppression was maintained throughout the 52 weeks after implantation in more than 99% of patients.
    1 context sentence
    Summary · context
    This open label, multicenter study was done to evaluate the efficacy and safety of the gonadotropin hormone-releasing hormone agonist histrelin acetate administered as a 50 mg subdermal implant in men with advanced prostatic cancer.
  5. 05HumanNon-randomized trialEfficacy outcome

    In men with advanced prostate cancer, histrelin significantly suppressed LH.

    In plain wordsIn men with advanced prostate cancer, histrelin suppressed LH.

    Peptide
    Histrelin
    Outcome
    DecreaseLH suppression
    Study

    n: not reported in source

    Outcome group
    Sex hormones and fertility · Endocrine and hormones
    Studied dose
    50 mg · subdermal implantAs given in this study (human).

    Source sentences

    Summary
    Significant LH and PSA suppression was also observed.
    1 context sentence
    Summary · context
    This open label, multicenter study was done to evaluate the efficacy and safety of the gonadotropin hormone-releasing hormone agonist histrelin acetate administered as a 50 mg subdermal implant in men with advanced prostatic cancer.
  6. 06HumanNon-randomized trialSafety outcome

    In men with advanced prostate cancer, no testosterone surge occurred with histrelin reimplantation.

    In plain wordsIn men with advanced prostate cancer, no testosterone surge occurred with histrelin reimplantation.

    Peptide
    Histrelin
    Outcome
    Not applicableTestosterone surge on reimplantation
    Study

    n: not reported in source

    Outcome group
    Sex hormones and fertility · Endocrine and hormones
    Studied dose
    50 mg · subdermal implantAs given in this study (human).

    Source sentences

    Summary
    No testosterone or LH surge was observed with reimplantation.
    1 context sentence
    Summary · context
    This open label, multicenter study was done to evaluate the efficacy and safety of the gonadotropin hormone-releasing hormone agonist histrelin acetate administered as a 50 mg subdermal implant in men with advanced prostatic cancer.
  7. 07HumanNon-randomized trialSafety outcome

    In men with advanced prostate cancer, no LH surge occurred with histrelin reimplantation.

    In plain wordsIn men with advanced prostate cancer, no LH surge occurred with histrelin reimplantation.

    Peptide
    Histrelin
    Outcome
    Not applicableLH surge on reimplantation
    Study

    n: not reported in source

    Outcome group
    Sex hormones and fertility · Endocrine and hormones
    Studied dose
    50 mg · subdermal implantAs given in this study (human).

    Source sentences

    Summary
    No testosterone or LH surge was observed with reimplantation.
    1 context sentence
    Summary · context
    This open label, multicenter study was done to evaluate the efficacy and safety of the gonadotropin hormone-releasing hormone agonist histrelin acetate administered as a 50 mg subdermal implant in men with advanced prostatic cancer.
  8. 08HumanNon-randomized trialSafety outcome

    In men with advanced prostate cancer, the histrelin implant was described as safe and well tolerated.

    In plain wordsIn men with advanced prostate cancer, the histrelin implant was described as safe and well tolerated.

    Peptide
    Histrelin
    Outcome
    Not applicableTolerability
    Study

    n: not reported in source

    Outcome group
    Adverse events · Whole body
    Studied dose
    50 mg · subdermal implantAs given in this study (human).

    Source sentences

    Summary
    Additionally, the implant was safe and well tolerated.
    1 context sentence
    Summary · context
    This open label, multicenter study was done to evaluate the efficacy and safety of the gonadotropin hormone-releasing hormone agonist histrelin acetate administered as a 50 mg subdermal implant in men with advanced prostatic cancer.

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

Registered trials1

Trials this study reports on, or that list this study as a reference. Registry data from ClinicalTrials.gov.

1 trial · 1 completed · source ClinicalTrials.gov (opens in a new tab)

CompletedPhase 3NCT01697384

Study to Evaluate Efficacy and Safety of Histrelin Subdermal Implant in Men With Advanced Prostate Cancer

Endo USA Inc., a Keenova Therapeutics Companyn = 138Apr 2000 to Oct 2004

Prostate Cancer · Adenocarcinoma of the Prostate

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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