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200 active trials for Infertility

Ovarian Reserve Testing in Female Young Adult Cancer Survivors

Young adult cancer survivors constitute an under served population to whom fertility potential is particularly important. For female young adult patients, cancer treatment such as alkylating chemotherapy are toxic to the finite number of eggs they have, resulting in risks of infertility and premature menopause related to ovarian failure. Reproductive issues are a major concern for young cancer survivors, but one that is understudied. Young cancer survivors have few tools to measure post-treatment ovarian reserve, or the quantity and quality of remaining eggs4. Accurate determination of ovarian reserve and fertility potential would not only be an important research tool, but also directly impact clinical management. The purpose of this study is to test if basal and provocative ovarian reserve testing can predict return of menses in female young adult cancer survivors, to compare basal and provocative ovarian reserve testing results between female young adult cancer survivors and healthy controls, and to compare basal and provocative ovarian reserve testing results between female young adult cancer survivors on and off of combined estrogen and progesterone hormone products. Participants will be asked to keep track of their periods over three months. If a participant is taking birth control pills, patches, or vaginal ring, they will asked to come off the birth control for 3 months. Participants will also be asked to undergo ovarian reserve testing by blood draws and pelvic ultrasounds at the start and end of the 3 months.

Start: January 2011
Hormonal Regulation of Puberty and Fertility

Background: - The body produces gonadotropin-releasing hormone (GnRH) about every 2 hours. GnRH travels through the bloodstream to the pituitary gland, where it stimulates the gland to produce hormones called gonadotropins. These hormones stimulate the testicles or ovaries. The testicles produce testosterone and develop sperm. The ovaries produce estrogen and prepare for ovulation. Normal estrogen and testosterone levels are required for puberty. Some people, however, have either low levels or total lack of GnRH. This can cause problems with puberty and fertility. Researchers want to study people with low or no GnRH to better understand how it affects puberty and fertility. Objectives: - To study disorders of GnRH production. Eligibility: Adult men and women at least 18 years of age with low or no gonadotropin levels. Adolescents between 14 and 18 years of age with low or no gonadotropin levels. Design: Participants will be screened with a physical exam and medical history. Blood and urine samples will be collected. Participants will have tests to look at their hormone levels. Blood samples may be collected after taking different drugs, including insulin and cortisone. A 24-hour urine sample will be collected. Participants will have imaging studies to look at bone and brain development. They will also have ultrasounds of the kidneys, abdomen, and reproductive organs. Tests of smell and hearing will be used to look for abnormalities in these senses.

Start: April 2012