Phyto Soya® Endometrial Safety Study

Published in Menopause, Volume 14, 2007
(The Journal of the North American Menopause Society)

Effect on the Endometrium and the Breast of a Standardised Extract (Phyto Soya®) in post-menopausal women

P. Mares - Gynaecology Department, Caremeau Hospital, Nîmes, France
S. Palacios - Palacios Institute, Madrid, Spain
B. Pornel - Brussels Menopause Centre, Brussels, Belgium

Aim:
Soya isoflavones are very often used in the treatment of the menopausal climacteric syndrome. Many Questions have been raised regarding the safety of these products to the breast and the endometrium. Some clinical studies have assessed the safety of these isoflavones, but very few studies have been performed in accordance with international guidelines. This study was conducted in accordance with the recommendations issued by the European Medicines Agency: evaluation made on more than 300 women for a minimum of one year.

Protocol:
395 women aged between 45 and 65 were taken into this multicentre, international, open trial. They were given 70 mg of soya isoflavones (Phyto Soya®) for 52 weeks. On acceptance into the trial and at the end of it, an endometrial biopsy, endovaginal echography and mammography were performed. If anyone left the trial early, the same examinations were carried out when the treatment had lasted more than 12 weeks.



Results:
On acceptance into the trial, 394 biopsies were performed. After one year’s treatment, no case of hyperplasia of the endometrium or of cancer was detected among the 305 biopsies made. The mammographs confirmed that breast tolerance was good. The mammary density results according to the BIRADS classification showed that taking Phyto Soya® for one year had not changed mammary density: only 19 variations were noted (density reduced in 13 cases and increased in 6 cases).



Conclusion :
The results of this study, performed on more than 300 women, show that administration of Phyto Soya® at a dosage of 4 capsules per day does not lead to any deleterious effect on the breast or the endometrium.

phyto soya isoflavones capsules
or purchase from good pharmacies and health stores including Dis-Chem Pharmacies nationwide