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Background: While the metabolic effects of testosterone have been well studied, the effects of co-administration of an androgen and progestin are less established. Two novel compounds being investigated for male hormonal contraception, dimethandrolone undecanoate (DMAU) and 11β-methyl-19-nortestosterone dodecylcarbonate (11β-MNTDC), have both androgenic and progestational activity. Aim: Characterize the effects of DMAU and 11β-MNTDC on metabolic parameters including weight, lipid parameters, insulin resistance, and adiponectin. Methods: Two randomized, double-blind, placebo-controlled studies in healthy men were previously performed to assess the safety and tolerability of DMAU and 11β-MNTDC taken orally for 28 days. Insulin and adiponectin assays were performed on a subset of banked samples. Changes in weight, LDL-C, HDL-C, fasting glucose, HOMA-IR, and adiponectin were assessed. Two way ANOVA with post hoc Tukey HSD was performed to assess for dosage (0, 200, or 400mg) and drug (DMAU or 11β-MNTDC) effects. Results: A total of 85 subjects were included in this secondary analysis. There was a statistically significant decrease in HDL-C (mean change -11 and -15 mg/dL) and increase in weight (3 and 2 kg) and LDL-C (18 and 23 mg/dL) in the DMAU and 11β-MNTDC 400mg groups respectively. There was no significant difference between the 200 and 400 mg groups nor differences between the two androgens. There were no statistically significant changes in fasting glucose, adiponectin or HOMA-IR. Conclusion: There were mild changes in weight, HDL-C, and LDL-C after 28 days of DMAU and 11β-MNTDC without significant changes in markers of insulin resistance or differences between the two compounds. Changes in metabolic parameters should be monitored and considered during further development of compounds for male hormonal contraception.

SAT-040 Changes in Metabolic Parameters After Administration of Novel Oral Androgens with Progestational Activity for 28 Days