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Found 4 clinical trials
Baselines in Reproductive Disorders

The purpose of the study is to explore the way in which gonadotropins (pituitary hormones) are released into the body. The knowledge acquired in this study will be used for the diagnosis and treatment of reproductive endocrine disorders. We seek to investigate the baseline characteristics of the GnRH-induced gonadotropin pulsations …

thyroid function test
endocrine disorder
klinefelter syndrome
premature menopause
  • 07 Nov, 2020
  • 1 location
Ovarian Morphology in Girls

Establishment of regular menstrual cycles is a key component of reproductive maturation and a recognized vital sign for health and well-being. Irregular menstrual cycles are especially common for the first 2-3 years after an adolescent's first menstrual period (i.e., menarche), which delays the identification and diagnosis of early reproductive disturbances …

regular menstrual cycles
menstrual period
  • 26 Jan, 2021
  • 2 locations
Ultrasound Characterization of Ovarian Follicle Dynamics in Women With Amenorrhea

In women with regular menstrual cycles, antral follicles have been shown to grow in synchronous cohorts, called waves, 2-3 times in a menstrual cycle. It is unknown whether these waves of follicle growth also occur in women with amenorrhea or if there is abnormal/absent follicle growth. Further, oligo- or amenorrhea …

insulin resistance
pelvic examination
regular menstrual cycles
  • 26 Jan, 2021
  • 1 location
Reproductive Axis Maturation in the Early Post-Menarchal Years

Background Most adult women with irregular periods of unknown cause report symptoms dating back to early adolescence. This study aims to learn how girls periods change in the 2 years after their first period. This will help researchers learn what healthy puberty looks like and how they can spot signs …

  • 28 Apr, 2021
  • 1 location