# Evaluation of therapeutic effects of Crocin in patients with polycystic ovary syndrome: A randomized Double-Blind clinical trial

## TL;DR

A clinical trial found that adding crocin to metformin improved some PCOS symptoms like hirsutism and acne, but not other metabolic markers.

## Contribution

This is the first clinical trial to evaluate the combined effect of crocin and metformin on PCOS symptoms in humans.

## Key findings

- Crocin improved follicle-stimulating hormone levels and reduced hirsutism in PCOS patients.
- Acne severity significantly decreased in the crocin group compared to baseline.
- No significant differences were observed in fasting blood sugar or other hormonal markers between groups.

## Abstract

Polycystic ovary syndrome (PCOS) is the most common endocrine-metabolic disorder in women of reproductive age. Crocin is known as the main component of saffron, which has antioxidant properties and has the ability to scavenge free radicals. Considering the pathophysiology of PCOS and also the anti-inflammatory and antioxidant properties of crocin in improving insulin resistance, we aimed to evaluate the efficacy of the combination of crocin and metformin compared to metformin alone in PCOS patients.

This study is a prospective, double-blind randomized controlled clinical trial. Fifty patients with PCOS and hirsutism were included from Baqaipour Obstetrics and Gynecology Clinic in Yazd and randomly assigned into the two study arms of control group [metformin and placebo (n = 25)] or intervention group [metformin and crocin (n = 25)]. Patients were administered crocin 15 mg tablets once a day in combination with metformin 500 mg twice a day for 12 weeks to complete three full periods of the monthly cycle. The studied endpoints were evaluated at the beginning and end of the study.

Crocin significantly improved the serum level of follicle-stimulating hormone (FSH) (P = 0.048) and Ferriman- Gallwey score (P = 0.042) at day 90. Furthermore, crocin group had a significant improvement in terms of acne severity at the end of the study (P = 0.03), so that none of the patients in the crocin group had severe acne at the end of the study. However, the comparisons between two groups were not statistically significant for other evaluated outcomes including fasting blood sugar (FBS), dihydroepiandrosterone-sulfate (DHEA-S), luteinizing hormone (LH), dermatology life quality index (DLQI), and blood pressure (BP) at the end of the study.

In the present study, concurrent use of crocin along with metformin was significantly effective in ameliorating the unpleasant side effects of PCOS, including hirsutism and acne, and increasing FSH sex hormone levels in patients with PCOS.

26/08/2021, Trial Registry number: IRCT20210730052027N1.