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Clinical experience with a 7-day estrogen patch: principles and practice

M Notelovitz1

  • 1Women's Medical and Diagnostic Center, Gainesville, Florida, USA.

Gynecological Endocrinology : the Official Journal of the International Society of Gynecological Endocrinology
|November 3, 1998
PubMed
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New 7-day estrogen patches effectively manage menopausal symptoms and offer good skin tolerance. Adhesion is superior to other patches, though optimal application site requires further study for hormone replacement therapy (HRT).

Area of Science:

  • Gynecology
  • Endocrinology
  • Dermatology

Background:

  • Hormone replacement therapy (HRT) is crucial for managing menopausal symptoms and preventing long-term health risks like cardiovascular disease and osteoporosis.
  • Ovarian failure leads to various health conditions in postmenopausal women, necessitating effective therapeutic interventions.

Purpose of the Study:

  • To review the principles and clinical practice of HRT.
  • To evaluate the efficacy and tolerability of a new 7-day estrogen matrix patch (Climara).

Main Methods:

  • Two 11-week placebo-controlled studies compared two doses of the 7-day estradiol patch against oral conjugated equine estrogen.
  • Skin irritation and adhesion studies were conducted for the 7-day patch.
  • Estradiol absorption from different skin sites was analyzed.

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Main Results:

  • Both 0.5-mg and 0.1-mg estradiol/day patches positively impacted climacteric symptoms.
  • The 7-day patch demonstrated good tolerance, with irritation levels comparable to Estraderm.
  • Superior adhesion was observed with the 7-day patch compared to Estraderm.
  • Estradiol absorption was higher and more consistent from the buttock compared to the abdomen.

Conclusions:

  • The 7-day estrogen matrix patch is an effective option for managing climacteric symptoms.
  • The patch offers good skin tolerability and superior adhesion.
  • Further research is needed to determine the optimal application site for consistent estradiol absorption.