Effect of Short Term Growth Hormone Releasing Hormone in Healthy Men
The purpose of this trial is to examine the short-term effects of Growth Hormone Releasing Hormone (GHRH, tesamorelin) administration in healthy men. We hypothesize that GHRH will increase GH pulse height and will not affect insulin sensitivity.
|Study Design:||Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Effect of Short Term Growth Hormone Releasing Hormone in Healthy Men|
- Mean Overnight Growth Hormone [ Time Frame: at 2 weeks (i.e., after 2 weeks of treatment) ] [ Designated as safety issue: No ]Outcome is mean overnight growth hormone at 2 weeks (i.e., following 2 weeks of treatment with growth hormone releasing hormone). Growth hormone was measured overnight (from 8pm-7:40am) by frequent blood sampling, and the mean is the average of these frequent measurements. The mean measurement at 2 weeks is given here, and, in the statistics section, is statistically compared with the mean measurement before treatment.
- Insulin Stimulated Glucose Utilization [ Time Frame: at 2 weeks (i.e., after 2 weeks of treatment) ] [ Designated as safety issue: No ]Insulin stimulated glucose uptake (M) is the amount of glucose (measured in mg per kg body weight per minute) taken up during the steady state period of a euglycemic hyperinsulinemic clamp. This measure was calculated for minutes 100-120 of euglycemic hyperinsulinemic clamp procedure at 2 weeks (i.e., after 2 weeks treatment with growth hormone releasing hormone). The measurement at 2 weeks is given here, and, in the statistics section, is statistically compared with the measurement before treatment.
|Study Start Date:||February 2009|
|Study Completion Date:||April 2010|
|Primary Completion Date:||April 2010 (Final data collection date for primary outcome measure)|
Experimental: Growth Hormone Releasing Hormone
Growth Hormone Releasing Hormone (Tesamorelin) 2mg by subcutaneous injection once daily
Drug: Growth Hormone Releasing Hormone (Tesamorelin)
Tesamorelin 2mg subcutaneous daily x 2 weeks
Other Name: Tesamorelin
The primary objective of this study is to determine the effects of growth hormone releasing hormone (Tesamorelin) on endogenous overnight growth hormone secretion and pulsatility, as well as insulin-stimulated glucose uptake. Healthy male subjects will receive 2mg Tesamorelin, subcutaneously, daily for two weeks. At baseline and after two weeks of treatment, we will assess overnight growth hormone by frequent sampling as well as insulin stimulated glucose uptake by clamp. Subjects will then stop the Tesamorelin and will return for an identical assessment after a 2 week withdrawal period.
|United States, Massachusetts|
|Boston, Massachusetts, United States, 02114|
|Principal Investigator:||Steven K Grinspoon, M.D.||Massachusetts General Hospital|