Thyroxine Supplementation May Improve Ovulation and Pregnancy Rates in Infertile Patients with Polycystic Ovary Syndrome and Subclinical Hypothyroidism

This prospective observational study was conducted on 220 patients with polycystic ovary syndrome (PCOS) and subclinical hypothyroidism (SCH) who were allocated into two groups; group one (n=112) received clomiphene citrate (CC) plus thyroxine while group two received only CC for ovulation induction. Patients receiving CC and thyroxine exhibited higher ovulation rate (p<0.001), higher endometrial thickness (p<0.05), higher number of dominant follicles (p<0.001) and higher pregnancy rate (p<0.001) compared to their counterparts receiving only CC. Thyroxine supplementation improves ovulation and pregnancy rates in infertile patients with PCOS and SCH receiving CC for ovulation induction who are therapy naïve.