Anovulation

This study tests whether taking two fertility drugs together (letrozole and clomiphene citrate) works better than letrozole alone for women with ovulation disorders who are trying to conceive. Researchers will compare live birth rates after one treatment cycle in 600 women across…

This study looks at whether dydrogesterone, a hormone pill, works better than a common birth control pill (drospirenone and ethinylestradiol) for treating irregular, heavy, or prolonged periods in teenagers aged 10 to 19. The main goal is to see how many teens have normal cycles …

This study tests whether injecting a woman's own platelet-rich plasma (PRP) or platelet-free plasma (PFP) into her ovaries can restart menstrual cycles and improve hormone levels. The trial includes 100 women aged 45-55 who have been in menopause for at least a year. Researchers …

This study compares taking the fertility drug letrozole for 10 days versus the usual 5 days in women with PCOS who want to get pregnant. About 20 women aged 18-40 will be randomly assigned to one of the two groups. The goal is to see if the longer treatment leads to more ovulatio…

This study looks at how common menstrual cycle symptoms—like pain, mood changes, and bleeding patterns—relate to physical and mental health in Spanish women aged 18 to 45 who have natural periods. Researchers will use questionnaires and urine ovulation tests to track symptoms and…

This study is building a large registry of women with Functional Hypothalamic Amenorrhea (FHA), a condition where the body stops having periods due to stress, low weight, or excessive exercise. Researchers will track up to 100,000 participants over time to learn how common FHA is…