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Related Experiment Videos

Continuous combined hormone replacement therapy compared with tibolone

F Al-Azzawi1, M Wahab, M Habiba

  • 1Department of Obstetrics and Gynaecology, University of Leicester, United Kingdom. fa2@leicester.ac.uk

Obstetrics and Gynecology
|February 5, 1999
PubMed
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Continuous combined hormone replacement therapy (HRT) and tibolone effectively manage menopausal symptoms and cholesterol. HRT significantly reduced LDL, while tibolone had a greater impact on HDL, with comparable bleeding patterns by study end.

Area of Science:

  • Endocrinology
  • Menopause research
  • Pharmacology

Background:

  • Menopausal hormone therapy (HT) is used to manage vasomotor symptoms.
  • Different HT formulations have varying effects on lipid profiles and bleeding patterns.
  • Tibolone offers a tissue-selective alternative to traditional HRT.

Purpose of the Study:

  • To compare the efficacy of continuous combined hormone replacement therapy (HRT) with estradiol valerate and norethisterone against tibolone 2.5 mg/day.
  • To assess the impact of these treatments on vasomotor symptoms, lipoprotein levels, and bleeding patterns in postmenopausal women.

Main Methods:

  • A multicenter, randomized, open-label study involving 235 postmenopausal women.
  • Fasting lipoproteins were measured at baseline and at 3, 6, and 12 months.

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  • Menopausal symptoms were assessed using Greene climacteric questionnaires, and bleeding episodes were recorded.

    • Main Results:

    • Both continuous combined HRT and tibolone effectively relieved vasomotor symptoms and reduced total cholesterol.
    • Continuous combined HRT significantly reduced low-density lipoprotein (LDL) levels, whereas tibolone did not.
    • Both treatments reduced high-density lipoprotein (HDL) levels, with a more pronounced effect observed with tibolone. Bleeding patterns became comparable by study completion.

    Conclusions:

    • Continuous combined HRT with estradiol valerate-norethisterone effectively controls menopausal symptoms.
    • This HRT regimen is associated with a safe lipid profile, including significant LDL reduction.
    • Tibolone also demonstrates efficacy in symptom control and lipid management, with distinct effects on HDL levels.