This clinical trial is focused on studying the effects of testosterone replacement therapy in men who have undergone bariatric surgery, which is a type of surgery to help with weight loss. The study is particularly interested in men with two conditions: obesity and male hypogonadism. Male hypogonadism is a condition where the body does not produce enough testosterone, a hormone important for male development and health. The treatment being tested is called testosterone undecanoate, which is given as a solution for injection known as Nebido. Some participants will receive this treatment, while others will receive a placebo, which looks like the treatment but does not contain the active substance.
The purpose of the study is to explore how testosterone therapy, combined with exercise and diet counseling, affects muscle strength and mass in men who have had bariatric surgery. Participants will be randomly assigned to receive either the testosterone treatment or a placebo. The study is designed to be double-blinded, meaning neither the participants nor the researchers will know who is receiving the actual treatment or the placebo. This helps ensure that the results are not influenced by expectations or bias.
Throughout the study, participants will be monitored for changes in muscle strength, body composition, and physical function. This includes tests like measuring muscle strength in different parts of the body and assessing physical performance through activities such as stair climbing. The study will also look at other health indicators, such as glucose metabolism, which is how the body processes sugar, and blood clotting factors. The trial is expected to continue until early 2026, providing valuable insights into the potential benefits of testosterone therapy for men with obesity and low testosterone levels following weight loss surgery.
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