Active clinical trials for "Hypogonadism"

Cancer and its complications are common problems. In most cases, this condition has a profound impact on survival and quality of life (QoL). Fatigue, sexual dysfunction, decreased sexual drive, depression and poor appetite are commonly seen in these patients. However, these symptoms also are seen in men with other conditions including those with low testosterone levels. The objective of this study is to determine the number of male patients with cancer that have low testosterone levels and to establish the relationship between testosterone levels and the symptoms that these patients experience.

This is an observational study with a drug called Nebido, a new testosterone replacement therapy, which is available for the treatment of male hypogonadism. The benefit and safety of Nebido have already been thoroughly evaluated through well controlled clinical trials. The main purpose of this observational study is to confirm the established safety profile of Nebido in daily clinical practice.

OBJECTIVES: I. Evaluate the sleep-entrained patterns of gonadotropin-releasing hormone (GnRH) and sex steroid secretion in normal and hypogonadal children. II. Examine the acute effects of sex steroids on the sleep-entrained patterns of GnRH secretion in pubertal children and normal adults, either by stimulation of endogenous production with pulsatile injection or by intravenous infusion of GnRH. III. Examine the role of endogenous opioids by means of opioid receptor blockade in the sex steroid regulation of GnRH secretion in pubertal children and normal adults.

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.

Both conditions hypogonadism and immobilisation (paraplegia) may contribute or lead to decreased bone mineral density resp osteoporosis. In this study bone mineral density is assessed in hypogonadal paraplegic patients, who are on standard prophylactic therapy for osteoporosis and and on a standard physiotherapy exercise program one group receiving Nebido for testosterone replacement (TRT). The additional effect of TRT on bone mineral density / osteoporosis is assessed (CT scan lumbar spine).

The primary purpose of the study is to evaluate, in obese and hypogonadal patients eligible for bariatric surgery, the effect of testosterone replacement therapy in improving lower urinary tract symptoms (LUTS) assessed using the IPSS (International Prostate Symptom Score) questionnaire, compared to hypogonadal untreated subjects and eugonadal subjects.

There is evidence that suggests male sex hormones (androgens) play a significant role in brain (central nervous system) functioning. In studies conducted with animals, researchers have documented that male sex hormones (androgens) are associated with neurotransmitter (serotonin) function, sexual behavior, aggression, and other non-reproductive behavior. Similar findings have been seen in studies involving humans. Androgens are thought to be involved in some neurologic conditions. Tourette's syndrome which is seen more often in males than females has caused researchers to look more closely at the effects of androgens on the brain. This study is designed to examine the effects of testosterone on brain (CNS) activity by first stopping testosterone release and then replacing it. Researchers will evaluate mood, behavior, cognitive (mental) function, physiologic response to serotonergic agonists and regional cerebral blood flow (r-CBF). This study will attempt to answer the following questions; 1. Is a person's mental functioning a result of being male or female (gender) or a result of the hormonal condition 3. Does the decrease of blood flow (r-CBF) to specific areas of the brain (prefrontal cortex) in women whose ovaries are not releasing hormones (hypogonadal state) also occur in men 4. Will the mental rotation task better identify hormone (gonadal steroid) differences in r-CBF 5. Do hormones directly influence the responsiveness of the hypothalamic-pituitary-adrenal (HPA) axis 6. Does the hormonal state of a patient directly affect levels of chemicals and steroids in the cerebrospinal fluid (CSF).

Primary Objective: 1. To determine the prevalence of secondary hypogonadism in male patients on chronic opioid therapy for cancer-related pain syndromes. Secondary Objective: 1. To determine the degree of sexual dysfunction, fatigue, and depression prevalent in male patients on chronic opioid therapy for cancer-related pain syndromes.

PK study to evaluate serum levels of testosterone post nasal delivery in two cohorts of hypogonadal boys.

The primary goal of this pilot study is to investigate the association between testosterone deficiency and the presence of abnormalities in the function of the autonomic nervous system. If such association exists, then we will investigate the effect of testosterone replacement therapy on correcting these abnormalities.