Ontology highlight
ABSTRACT:
SUBMITTER: Franik S
PROVIDER: S-EPMC9514207 | biostudies-literature | 2022 Sep
REPOSITORIES: biostudies-literature
Franik Sebastian S Le Quang-Khoi QK Kremer Jan Am JA Kiesel Ludwig L Farquhar Cindy C
The Cochrane database of systematic reviews 20220927
<h4>Background</h4>Polycystic ovary syndrome (PCOS) is the most common cause of infrequent periods (oligomenorrhoea) and absence of periods (amenorrhoea). It affects about 5% to 20% of women worldwide and often leads to anovulatory infertility. Aromatase inhibitors (AIs) are a class of drugs that were introduced for ovulation induction in 2001. Since about 2001 clinical trials have reached differing conclusions as to whether the AI, letrozole, is at least as effective as the first-line treatment ...[more]