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Norgestimate. From the laboratory to three clinical indications
1Department of Obstetrics and Gynecology, Stanford University School of Medicine, 4210 Ynigo Way, Palo Alto, CA 94306, USA. mhenzl@aol.com
The Journal of Reproductive Medicine
|August 14, 2001
Summary
Norgestimate (NGM) is a versatile progestin effective in oral contraception, hyperandrogenism treatment, and hormone replacement therapy. Its metabolite provides progestogenic properties with low androgenic impact, offering therapeutic benefits across reproductive life stages.
Area of Science:
- Pharmacology and Therapeutics
- Endocrinology
Background:
- Norgestimate (NGM) is a 19-norsteroid progestin.
- NGM is rapidly metabolized to norelgestromin, its active form.
Purpose of the Study:
- Review NGM's structure-function relationship, pharmacology, and clinical applications.
- Evaluate NGM's efficacy and safety in oral contraception (OC), hyperandrogenism, and hormone replacement therapy (HRT).
Main Methods:
- Review of preclinical studies and clinical trials.
- Analysis of NGM's pharmacokinetic and pharmacodynamic properties.
- Evaluation of clinical experience in various therapeutic areas.
Main Results:
- NGM's metabolite, norelgestromin, possesses comparable potency to progesterone.
- NGM-containing OCs effectively inhibit ovulation and control uterine bleeding with low progestin load.
- NGM demonstrates low androgenicity, improves lipid profiles, and treats hyperandrogenic symptoms like acne.
- A novel HRT regimen with NGM and estradiol shows efficacy in symptom management and endometrial protection.
Conclusions:
- Norgestimate is a versatile progestin with a favorable safety and efficacy profile.
- NGM is suitable for oral contraception, hyperandrogenism treatment, and hormone replacement therapy.
- NGM offers benefits across a wide range of women's health applications from adolescence to menopause.
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