Testosterone undecanoate improves sexual function in men with type 2 diabetes and severe hypogonadism: results from a 30-week randomized placebo-controlled study
Abstract
OBJECTIVE: To evaluate the sexual function response to 30 weeks' treatment with long-acting testosterone undecanoate (TU) or placebo in 199 men with type 2 diabetes and either severe or mild hypogonadism (HG).
PATIENTS AND METHODS: Men with HG were identified from seven primary care type 2 diabetes registers. A 30-week randomized placebo-controlled study of TU was carried out in 199 of these men (placebo, n = 107, TU, n = 92). The patient-reported outcome measure was the 15-item International Index of Erectile Function score. Men completing the study (n=189) were stratified, firstly, by baseline total testosterone (TT) or free testosterone (FT) into mild HG (TT 8.1-12 nmol/L or FT 0.18-0.25 nmol/L) and severe HG groups (TT ≤8 nmol/L and FT ≤0.18 nmol/L), and secondly, by intervention (placebo or TU), thereby creating four groups: mild HG/placebo; mild HG/TU; severe HG/placebo and severe HG/TU.
STATISTICAL ANALYSIS: Changes in sexual function score (a secondary outcome of the study) at each visit within group (from baseline) and between groups (TU vs placebo) at each assessment (6, 18 and 30 weeks) were compared using a Wilcoxon signed-rank and Wilcoxon rank-sum test, respectively.
RESULTS: Significant improvement in erectile function was evident only in the severe HG group after 30 weeks of TU treatment; this finding persisted when TU was compared with placebo. Intercourse satisfaction and sexual desire scores were also improved at 6, 18 and 30 weeks in the severe HG group…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 199 participants or records.
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