View clinical trials related to Dwarfism, Pituitary.
Filter by:This study is a multicenter, open-label, observational, post marketing surveillance program to collect information on the use of NutropinAq® in adults suffering from Growth Hormone Deficiency in Germany, Italy, and United Kingdom
This study aims to examine the safety, tolerability and pharmacokinetics of transdermal delivery of human Growth Hormone (hGH or somatropin) using the ViaDerm device in adult patients with Growth Hormone Deficiency Syndrome.
To examine the clinical genetic and biochemical characteristics of children with growth hormone deficiency.
The diagnosis of growth hormone deficiency (GHD) in adults is established by laboratory testing in patients with an appropriate clinical history of hypothalamic pituitary disease. Two tests that are considered to be gold standard tests for the diagnosis of GHD are the insulin tolerance test (ITT) and growth hormone releasing hormone (GHRH) combined with L-arginine (L-ARG). However, these tests are either bothersome (given intravenously) to the patient or are linked with side effects. Therefore, an orally available compound like AEZS-130 (formerly ARD-07), if demonstrated to be safe and providing adequate sensitivity and specificity could be a welcome alternative and/or complement to the current available tests. The intent was to recruit 40 adult GHD (AGHD) patients and 40 healthy control subjects into this trial, but the original sponsor (Ardana Biosciences Ltd.) discontinued the study for financial reasons before this was completed. At the time of withdrawal of GHRH from the market in 2008, 42 AGHD patients and 10 normal controls had completed the study at 9 US sites. This study reactivated to complete the remaining 30 matched control subjects. Additionally upon agreement with the FDA in a Special Protocol Assessment (SPA), 10 additional adult growth hormone deficient and their matched control were planned to be enrolled into this trial for a total treated population of approximatively 100 subjects.
To establish the effects of genotropin replacement in patients with severe growth hormone deficiency after traumatic brain injury on cognitive function.
To evaluate specific markers of cardiovascular risk before and after growth hormone replacement therapy in a population of growth hormone deficient adults, as compared to an age, gender, and BMI-matched healthy population.
Objective: This study is designed to determine whether growth hormone treatment in children 8 to 18 years of age alters function of the lining of the arteries. This may play a role in increasing or decreasing the risk of heart disease. Methods. Twenty children, for whom growth hormone therapy will be otherwise provided, will be studied before and 3 months after starting growth hormone. Subjects can be on other hormonal replacements but no other medications. Each study will be done in the fasting state. The blood vessel function will be determined by measuring the change in forearm blood flow before and after blocking flow to the arm for 5 minutes. Blood will be drawn after the test to measure glucose, insulin and fats.
The purpose of the proposed study is to investigate the effects of rhGH treatment on glucose, protein and fat metabolism in GHD children. Specifically, the investigators will measure the rates of glucose production, gluconeogenesis, glycogenolysis, insulin sensitivity and glucagon response before and after treatment with rhGH. In addition, the investigators will study changes in protein and fat metabolism pre and post rhGH therapy in children with GHD. The findings in the GHD children will be compared to those of a control group of age and sex matched healthy children. Hypotheses: H1- The fraction of glucose derived from gluconeogenesis is decreased and that from glycogenolysis is increased in the post-absorptive state in untreated GHD children when compared to healthy children. H2- Treatment with rhGH will not change the overall glucose turnover but will normalize the abnormal partitioning of gluconeogenesis and glycogenolysis in GHD children. H3- GH replacement will reduce urea production and increase estimates of protein synthesis, thus optimizing the availability of amino acids for growth. H4- Untreated children with GHD after an overnight fast will have an increased glucagon challenge response that will decrease after 8 weeks of treatment with rhGH. Specific Aims: In healthy and newly diagnosed GHD children the investigators will: 1. Measure the Glucose Production Rate (GPR) 2. Determine the fraction of glucose derived from gluconeogenesis and glycogenolysis 3. Estimate insulin sensitivity 4. Measure proteolysis and protein oxidation 5. Determine glucagon challenge response after an overnight fast. The above-mentioned parameters will be re-evaluated in the children with GHD after 8 weeks of rhGH therapy.
Specific Aim 1 Healthy male and female subjects and growth hormone (GH) deficient subjects display sexually dimorphic GH responses to GHRH administration Specific Aim 2 GH responses to GHRH in both healthy controls and in GH deficient patients correlate with expression and activity of the stimulatory G proteins, G alpha q and G alpha S. G protein levels correlate with gonadal steroid levels. Specific Aim 3 Sexually dimorphic GH responses to GHRH are enhanced in Tanner Stage V compared to Tanner Stage 1 individuals
This will be the first clinical study of the development of PHA-794428 in a pediatric population. Since differences in PK and/or PD response may occur between adult and pediatric subjects, it is deemed appropriate to first conduct an exploratory single dose study in pediatric patients to assess safety and tolerability in this patient population. In addition this will add pediatric data to facilitate the prediction of the optimal therapeutic dose to be tested in repeated dose phase 2b trials in children, using PK/PD modeling