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Metabolic Effects of Testosterone Added to Intensive Lifestyle Intervention in Older Men With Obesity and Hypogonadism.

Clinical visual abstract: Metabolic Effects of Testosterone Added to Intensive Lifestyle Intervention in Older Men With Obesity and Hypogonadism.

Clinical Bottom Line

In a J Clin Endocrinol Metab randomized trial, In older men with obesity and hypogonadism, adding TRT for 6 months to LT does not result in further improved cardiometabolic profiles and could potentially blunt some of the metabolic benefits induced by LT.…

Summary: In a J Clin Endocrinol Metab randomized trial, In older men with obesity and hypogonadism, adding TRT for 6 months to LT does not result in further improved cardiometabolic profiles and could potentially blunt some of the metabolic benefits induced by LT. Key reported results included HbA1c decreased similarly in LT + TRT and LT + Pbo groups (-0.5 ± 0.1 vs -0.6 ± 0.1%, respectively; P = 0.35).

PICO Summary

ElementDetail
PopulationSecondary analysis of a randomized, double-blind, placebo-controlled trial. SETTING: Veterans Affairs Medical Center. PARTICIPANTS: Eighty-three older (age ≥ 65 years) men with obesity (body mass index ≥ 30 kg/m2) and persistently low Am testosterone (< 10.4 nmol/L) associated with frailty. INTERVENTIONS: LT (weight management and exercise training) plus either testosterone (LT + TRT) or placebo (LT + Pbo) for 6 months….
InterventionSecondary analysis of a randomized, double-blind, placebo-controlled trial.
ComparisonSecondary analysis of a randomized, double-blind, placebo-controlled trial.
OutcomeHbA1c decreased similarly in LT + TRT and LT + Pbo groups (-0.5 ± 0.1 vs -0.6 ± 0.1%, respectively; P = 0.35). While TRT showed no synergistic effect with LT on ameliorating secondary outcomes, it eliminated the augmentative effect of LT on high-density lipoprotein cholesterol concentration (5.4 ± 1.0 mg/dL in the LT + Pbo group vs 0.2 ± 1.1 mg/dL in the LT + TRT group, P = .01) and adiponectin levels (-408 ± 489 ng/mL in LT + TRT group vs 1832 ± 468 ng/mL in LT + Pbo group, P = .02). In older men with obesity…
RCT J Clin Endocrinol Metab · 2025

Metabolic Effects of Testosterone Added to Intensive...

Primary RCT · Obesity & weight management

Trial design
Obesity & weight management Enrolled & assessed RANDOMISED RCT Intervention Active arm n = NR Comparator Comparator n = NR HbA1c decreased similarly in LT + TRT and LT + Pbo groups (-0.5 ± 0.1 vs -0.6 ± 0.1%, respectively; P = 0.35).
Change from baseline — both arms
Reported primary outcome Baseline Endpoint Intervention Comparator
Primary outcome
-0.5
See PICO summary
Results
-0.5
Abstract-reported estimate
Interpretation
In older men with obesity and hypogonadism, adding TRT for 6 months to LT does not result in further...
Source conclusion
Limitations
95% CI not stated
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⬡ Bottom Line

In older men with obesity and hypogonadism, adding TRT for 6 months to LT does not result in further improved cardiometabolic profiles and could potentially blunt some of the metabolic benefits induced by LT.

Expert Commentary

This J Clin Endocrinol Metab randomized trial evaluated Metabolic Effects of Testosterone Added to Intensive Lifestyle Intervention in Older Men With Obesity and Hypogonadism. The abstract describes the study as follows: Secondary analysis of a randomized, double-blind, placebo-controlled trial. SETTING: Veterans Affairs Medical Center. PARTICIPANTS: Eighty-three older (age ≥ 65 years) men with obesity (body mass index ≥ 30 kg/m2) and persistently low Am testosterone (< 10.4 nmol/L) associated with frailty…. The main reported results were: HbA1c decreased similarly in LT + TRT and LT + Pbo groups (-0.5 ± 0.1 vs -0.6 ± 0.1%, respectively; P = 0.35). While TRT showed no synergistic effect with LT on ameliorating secondary outcomes, it eliminated the augmentative effect of LT on high-density lipoprotein cholesterol concentration (5.4 ± 1.0 mg/dL in the LT + Pbo group vs 0.2 ± 1.1 mg/dL in the LT + TRT group, P = .01) and adiponectin levels… The authors conclude: In older men with obesity and hypogonadism, adding TRT for 6 months to LT does not result in further improved cardiometabolic profiles and could potentially blunt some of the metabolic benefits induced by LT. The clinical value of the result depends on whether the trial population, comparator, follow-up and outcome match the..

References

Gonzalez-Gil AM, Barnouin Y, Celli A, et al.. Metabolic Effects of Testosterone Added to Intensive Lifestyle Intervention in Older Men With Obesity and Hypogonadism.. J Clin Endocrinol Metab. 2025-Feb-18. doi:10.1210/clinem/dgae249. PMID: 38606934.

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