View clinical trials related to Hypogonadism.
Filter by:The investigators are looking for subjects to complete a study on the role of kisspeptin in the reproductive system. Kisspeptin is a naturally occurring hormone in humans that tells the body to produce other reproductive hormones. However, giving someone a continued amount of kisspeptin over a period of time can have the opposite effect and tell the body to, for a short time, stop making hormones needed for reproduction. By giving 24-hour infusions of kisspeptin, the investigators hope to learn more about the role kisspeptin has in the way bodies function normally and the role it has in conditions that affect the reproductive system.
The goal of this study is to test whether the hormone kisspeptin has the potential to prospectively diagnose adolescents with self-resolving or permanent delayed puberty. Some children with delayed puberty will eventually enter puberty on their own. However, some children with delayed puberty have a permanent condition and require medical treatment to undergo puberty. Right now, there is no reliable diagnostic tool to tell whether a child's delayed puberty will be self-resolving or permanent. The hormone kisspeptin has the potential to prospectively diagnose adolescents with self-resolving or permanent delayed puberty.
The purpose of this study is to see if testosterone solution 2% can impact symptoms of ejaculatory dysfunction in men with low testosterone.
The traditional therapy for induction of spermatogenesis in male hypogonadotropic hypogonadism requires both HCG and human menopausal gonadotropin (HMG) or FSH until pregnancy occurs. Because of the high cost of hMG or FSH preparations and poor compliance, the investigators raise a new sequential therapeutic approach which can make the treatment more economic and tolerable. The zinc supplement will be also evaluated in patients in this study. This randomized, parallel, open, and multi-center study will compare the efficacy of traditional therapy with new therapy and evaluate the safety of the new protocol.
The purpose of this study is to determine the safety and efficacy of an oral testosterone undecanoate formulation for use as testosterone-replacement therapy in men with low testosterone.
The study will determine the effects of three doses of Androxal(enclomiphene citrate)on morning testosterone versus AndroGel(approved topical treatment)in men with low testosterone (<350 ng/dL)after 6 weeks of continuous dosing.
The purpose of this study is to determine the continued effects of Androxal on morning testosterone and reproductive status in men with secondary hypogonadism who have completed protocol ZA-203. Men will be allowed to choose Androxal (enclomiphene citrate) or Testim (topical testosterone) at the beginning of the study. All men on Androxal will start at 12.5 mg and will be allowed to up titrate to 25 mg if an inadequate response is exhibited at the lower dose.
Testosterone (T) replacement prevents bone loss and relieves symptoms associated with androgen deficiency in male patients with hypogonadism, but at the expense of an increase in prostate-related adverse events and in the hematocrit values above the normal which may lead to bad circulatory outcomes. Most of the effects of T on the male skeleton are mediated by its conversion to estradiol (E2) by the enzyme aromatase. Genetic variations in the aromatase (CYP19A1) gene result in enzymes with variable activity and variable levels of E2 and T. This project is designed to determine if genetic variations in the CYP19A1 gene will result in differences in the skeletal response and incidence of side effects from T treatment in patients with low T. A large number of male Veterans are on T. Results from this project will help identify patients who would benefit from the therapy from those at risk for side effects, and would definitely have an impact in the future care of these patients and male patients in general once genetic profiling becomes part of the standard of care.
The purpose of this study is to evaluate whether benefits of topical testosterone on symptoms and function of male HF patients, and its effects on rehospitalization rates and quality of life.
This is an open-label study of a single and repeated application of three dose levels of topical testosterone in hypogonadal males with morning serum testosterone concentrations < 297 ng/dL.