Prostate Adenocarcinoma TransCutaneous Hormones

  • STATUS
    Recruiting
  • days left to enroll
    69
  • participants needed
    2200
  • sponsor
    University College, London
Updated on 27 January 2021
diabetes
gonadotropin
cancer
ejection fraction
androgens
estrogen
testosterone
antiandrogen therapy
androgen suppression
metastatic prostate cancer
luteinizing hormone-releasing hormone agonist
goserelin
orchiectomy
luteinizing hormone
androgen
estradiol
adenocarcinoma
gnrh
lhrh
adenocarcinoma of prostate
gonadorelin
prostate cancer metastatic

Summary

RATIONALE: The increasingly prolonged and extended use of androgen deprivation therapy (ADT) in the treatment of prostate cancer, usually achieved through the administration of LHRH agonists, has raised concerns about long-term toxicities, in particular osteoporosis and adverse metabolic changes which may be associated with type II diabetes and increased cardiovascular risk. An alternative approach is to investigate other methods of ADT. Oral oestrogen has been shown to be as effective as LHRH and surgical orchidectomy in achieving castrate levels of testosterone and has equivalent or improved prostate cancer outcomes but is not used routinely as first-line therapy because of the risk of cardiovascular system (CVS) complications. The CVS complications have been attributed to first-pass hepatic metabolism. Administering oestrogen parenterally avoids the entero-hepatic circulation and so is expected to mitigate the risk of CVS toxicity whilst still effectively suppressing testosterone to castrate levels. This hypothesis has been supported by results from the early stages of this trial which have provided sufficient indication of the safety and efficacy of the patches to warrant further investigation of the treatment in this setting, as recommended by the IDMC..

PURPOSE: This randomized phase III trial is studying how well the estrogen skin patch works compared with luteinizing hormone-releasing hormone agonist injections in treating patients with locally advanced or metastatic prostate cancer.

Description

OBJECTIVES

Primary

  • Compare the progression-free survival and overall survival of patients with locally advanced or metastatic prostate cancer treated with transcutaneous estrogen patches vs luteinizing hormone-releasing hormone analogues.

Secondary

  • Compare the cardiovascular system-related morbidity and mortality in patients treated with these regimens
  • Compare the activity of these treatments, in terms of castrate level of hormones, failure-free survival, and biochemical failure, in these patients.
  • Compare other toxicities, including osteoporosis, hot flushes, gynecomastia, and anemia, in patients treated with these regimens.
  • Compare the quality of life of patients treated with these regimens.

OUTLINE: This is a randomized, controlled, multicenter study. Patients are randomized to 1 of 2 treatment arms at 1(control):1 (patch) ratio.

  • Arm I (control): Patients receive luteinizing hormone-releasing hormone agonists as per local practice in the absence of unacceptable toxicity.
  • Arm II (patch): Patients receive 4 transcutaneous estrogen patches, changing twice weekly for 4 weeks. Patients' testosterone levels are measured at week 4. Patients whose testosterone level is > 1.7 nmol/L continue to receive patch as before and have their testosterone level measured every 2 weeks. Patients whose testosterone level is < 1.7 nmol/L at week 4 or any other point receive 3 transcutaneous estrogen patches changed twice weekly in the absence of unacceptable toxicity.

Quality of life is assessed at baseline; at weeks 4, 8, and 12; every 3 months for 24 months.

After completion of study treatment, patients are followed periodically.

Peer Reviewed and Funded or Endorsed by Cancer Research UK

PROJECTED ACCRUAL: A total of 2200 patients will be accrued for this study.

Details
Condition Malignant neoplasm of prostate, Osteopenia, Hot flushes, Blood disorder, Prostatic disorder, Osteoporosis, Anemia, Prostate Disorders, Prostate Cancer, Early, Recurrent, Cardiovascular Complication, Cardiovascular Complications, Cardiac Complications, Anemia; Non-Hodgkin’s Lymphoma, Prostate Cancer, Hot Flash, Hematological Disorders, hot flashes, prostate carcinoma, anaemia, prostate cancers
Treatment Goserelin, Goserelin, Estradiol, Estradiol
Clinical Study IdentifierNCT00303784
SponsorUniversity College, London
Last Modified on27 January 2021

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