BRD2 and hypogonadotropic hypogonadism: In a study of 60 males with hypogonadotropic hypogonadism, aged 14 to 22 years, patients with congenital rather than acquired hypogonadotropic hypogonadism, and those with cryptorchidism, responded less well to treatment with hCG and recombinant FSH (rFSH), having lower final sperm counts (166).