Abstract
Background: Prevalence of hypogonadism in men with T2DM has been reported as high as 50%. ADA Guidelines recommend measuring testosterone in men with T2DM. Methods: Of 370 men with hypogonadism and T2DM, 302 (81.6%) were obese, 62 (16.8%) overweight and 6 (1.6%) had normal weight. 190 received injections of testosterone undecanoate 1000 mg/12 weeks (T-group) following an initial 6-week interval, 180 opted against treatment (CTRL) . Means and standard deviations of absolute measures over 13 years of treatment are reported. Results: Mean baseline age: 62.0±5.2 years, mean (median) follow-up: 9.3±3.1 (10) years. Waist circumference (cm) decreased from 117.9±14.8 to 98.2±4.3 in the T-group (p<0.0001) and increased in CTRL from 116.9±13.5 to 119.0±8.4 (p<0.0001) . Difference between groups at 13 years: 21.8 (p<0.0001) . Weight (kg) decreased from 114.4±13.8 to 88.3±7.6 in the T-group (p<0.0001) and increased in CTRL from 102.7±14.1 to 104.5±10.2 (p<0.0001) . Difference between groups: 21.4 (p<0.0001) . BMI (kg/m²) decreased from 36.5±4.4 to 28.5±2.4 in the T-group (p<0.0001) and increased in CTRL from 32.8±4.7 to 33.3±3.6 (p<0.0001) . Difference between groups: 6.9 (p<0.0001) . Weight change from baseline was -21.5±5.2% in the T-group and 9.3±3.0% in CTRL (p<0.00for both) . Difference between groups: 30.4% (p<0.0001) . Waist:height ratio decreased from 0.67±0.to 0.56±0.03 in the T-group and increased from 0.66±0.to 0.67±0.05) in CTRL (p<0.00for both) . Difference between groups: 0.12 (p<0.0001) . Visceral adiposity index (VAI) decreased from 5.9±3.1 to 1.8±0.4 in the T-group and increased from 5.2±2.6 to 9.1±4.4 in CTRL (p<0.00for both) . Difference between groups: 7.6 (p<0.0001) . Adherence to testosterone therapy was 100%. Conclusions: Long-term treatment with testosterone undecanoate injections results in profound weight loss maintained over up to 13 years. Untreated hypogonadal patients gain weight. Disclosure A.Haider: Other Relationship; Bayer AG. K.S.Haider: Other Relationship; Bayer AG. F.Saad: Consultant; Bayer AG, Stock/Shareholder; AbbVie Inc., Bayer AG, GlaxoSmithKline plc. Funding Bayer AG
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