Effects of testosterone undecanoate on cardiovascular risk factors and atherosclerosis in middle-aged men with late-onset hypogonadism and metabolic syndrome: results from a 24-month, randomized, double-blind, placebo-controlled study

The Journal of Sexual Medicine
Antonio AversaGiovanni Spera

Abstract

Longitudinal studies have demonstrated that male hypogonadism could be considered a surrogate marker of incident cardiovascular disease. To evaluate the effects of parenteral testosterone undecanoate (TU) in outclinic patients with metabolic syndrome (MS) and late-onset hypogonadism (total testosterone (T) at or below 11nmol/L or free T at or below 250pmol/L). This is a randomized, double-blind, double-dummy, placebo-controlled, parallel group, single-center study. Fifty patients (mean age 57±8) were randomized (4:1) to receive TU 1,000mg (every 12 weeks) or placebo (PLB) gel (3-6 g/daily) for 24 months. Homeostasis model assessment index of insulin resistance (HOMA-IR), carotid intima media thickness (CIMT), and high-sensitivity C-reactive protein (hsCRP). At baseline, all patients fulfilled the National Cholesterol Education Program-Third Adult Treatment Panel (NCEP-ATPIII) and International Diabetes Federation (IDF) criteria for the definition of MS. An interim analysis conducted at 12 months showed that TU markedly improved HOMA-IR (P < 0.001), CIMT (P < 0.0001), and hsCRP (P<0.001) compared with PLB; thus, all patients were shifted to TU treatment. After 24 months, 35% (P < 0.0001) and 58% (P < 0.001) of patients still pre...Continue Reading

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