Effect of Low-Dose Prednisolone on Sperm Fertilizing Capacity in Subfertile Men with Circulating Antisperm Antibodies

To assess if low-dose prednisolone reduced circulating antisperm antibodies and improved sperm fertilizing capacity, the hamster oocyte penetration test (HOPT) was used to evaluate treatment in 36 males with significant serum antisperm antibodies, measured by the tray agglutination test (TAT). Prednisolone 5 mg three times a day for 3 months was used. Only couples in whom all tests in the female partner were normal were entered into the study. A significant increase in sperm density, normal morphology, and HOPT were noted after therapy (p