The Effects of Semaglutide vs Testosterone Replacement Therapy on Functional Hypogonadism and Sperm Quality in Men With Type 2 Diabetes Mellitus and Obesity
NCT06489457 · Completed
Last updated 2026-05-28This clinical trial compares the effects of semaglutide and testosterone replacement therapy on semen volume in men with type 2 diabetes, obesity, and low testosterone levels.
What this study is testing ClinicalTrials.gov NCT06489457 ↗
Description as written by the study sponsor.
The goal of this study is to learn whether semaglutide (treatment for type 2 diabetes and obesity) can improve signs and symptoms of hypogonadism in men with type 2 diabetes, obesity and hypogonadism (a condition when levels of testosterone are decreased). The main questions the study aims to answer are: * Does semaglutide improve the quality of sperm? * Does semaglutide improve symptoms of hypogonadism as well as testosterone replacement? The researchers will compare semaglutide to testosterone replacement to see which drug better treats symptoms of hypogonadism. * The participants will receive testosterone replacement therapy (intramuscular injection every 10-12 weeks) or magnitude (subcutaneous injection once a week). * The treatment will last 24 weeks. * The participants will visit the clinic at the start and the end of the study. At the visit, the researchers will measure body weight and take a few blood samples. The participants will also be asked to complete several questionnaires and collect a sperm sample. The participants are free to terminate their participation in the study at any time without giving a reason.
Treatments tested
- Semaglutide Drug
Semaglutide subcutaneous injection once weekly titrated to 1 mg in concordance with Summary of product characteristics (SmPC) (0.25 mg once weekly in the first month, 0.5 mg once weekly in the second month and 1 mg once weekly from the third month onward)
- Testosterone Undecanoate Drug
Testosterone Undecanoate intramuscular injection 1000 mg once per 10-12 weeks
| Main thing measured | Change in semen volume from baseline and between the treatment arms |
|---|---|
| Sponsor | University Medical Centre Ljubljana |
| Conditions studied | Type 2 Diabetes Mellitus, Obesity, Functional Hypogonadism |
| GLP-1 drugs | semaglutide |
Full protocol, eligibility, and contacts on ClinicalTrials.gov NCT06489457 ↗