Effectiveness of Low-dose Ethinylestradiol/ Cyproterone Acetate and Ethinylestradiol/ Desogestrel with and without Metformin on Hirsutism in Polycystic Ovary Syndrome: A Randomized, Double-blind, Triple-dummy Study

Sanjeewani Fonseka, Chandrika N. Wijeyaratne, Indika B. Gawarammana, Nishan S. Kalupahana, Shanthini Rosairo, Neelakanthi Ratnatunga, Ranjith Kumarasiri

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

BACKGROUND: The effectiveness of different combined oral contraceptive pills and metformin in reducing hirsutism in patients with polycystic ovary syndrome (PCOS) remains unclear. OBJECTIVE: We sought to determine the effects of ethinylestradiol (35g)/cyproterone acetate (2mg) (EE/CPA) and ethinylestradiol (20g)/desogestrel (0.15mg) (EE/DES), alone or with metformin, on hirsutism in PCOS. METHODS: A randomized, double-blind, triple-dummy study was conducted on women with PCOS and hirsutism (N=107) who received one of four drug combinations (Arm A: EE/ CPA; Arm B: EE/DES; Arm C: EE/CPA plus metformin; or Arm D: EE/DES plus metformin). Hirsutism was assessed at baseline, six months, and 12 months by using five outcomes variables. RESULTS: No outcomes variable showed a significant difference between the four arms at 12 months. There was a significant reduction in both hair density and modified Ferriman-Gallwey score (mFGS) in Arm A, mFGS in Arm B, hair density in Arm C, and diameter of sideburn hair in Arm D, respectively. Separately, there was a significant increase noted in the hair growth rate of chin and an improvement in patients perceptions of hirsutism in all four study arms. CONCLUSION: EE/CPA and EE/DES were equally effective in improving hirsutism in PCOS, with no added benefit from low-dose metformin. Sri Lanka Clinical Trials Registry (http://www.slctr. lk) registration no. SLCTR/2015/007.

Original languageEnglish
Pages (from-to)18-23
Number of pages6
JournalJournal of Clinical and Aesthetic Dermatology
Volume13
Issue number7
Publication statusPublished - Jul 2020
Externally publishedYes

Keywords

  • cyproterone acetate
  • desogestrel
  • Ferriman-Gallwey score
  • hair density
  • hair diameter
  • hair growth rate
  • Hirsutism
  • metformin
  • polycystic ovary syndrome

ASJC Scopus subject areas

  • Dermatology

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