Reproductive endocrinology

A randomized controlled trial comparing myoinositol with metformin versus metformin monotherapy in polycystic ovary syndrome

Clin Endocrinol (Oxf)Published Randomised controlled trial

Authors' conclusion

The addition of myoinositol to metformin exerts additional benefits in improving menstrual cycle regularity, and quality of life in women with PCOS.

Study context

Population
Overweight and obese women with PCOS aged 18–35
Participants
26 vs 27
Comparison
Metformin plus myoinositol and d-chiro-inositol vs metformin monotherapy
  • Myoinositol combinationn = 26
  • Metformin monotherapyn = 27reference

Primary result

As reported in the abstract

Menstrual cycle regularity · 6 months
  • Menstrual cycle regularity improved in both groups, significantly more with myoinositol-based therapy
  • Myoinositol combination vs Metformin monotherapy: P < 0.001

Further findings

Pregnancy rate

Pregnancy rate was equal in both arms

PCOSQ score

Significant improvement in PCOSQ score with myoinositol-based therapy
P < 0.001

Other hormonal and metabolic parameters

No statistically significant difference between groups

Original publication

A randomized controlled trial comparing myoinositol with metformin versus metformin monotherapy in polycystic ovary syndrome. Clin Endocrinol (Oxf). Published 2 June 2023. doi:10.1111/cen.14931

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