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SOURCE-LINKED STUDY SUMMARY

Transdermal testosterone gel improves sexual function, mood, muscle strength, and body composition parameters in hypogonadal men.

The Journal of clinical endocrinology and metabolism ·

Human

Abstract summarizedQuality not appraised
What was studied
A 180-day active-comparator study evaluated transdermal testosterone gel effects on sexual function, mood, strength, DXA body composition, and safety in hypogonadal men.
Who / model studied
The study included 227 men with hypogonadism.
Studied dose & schedule
Men used 1% testosterone gel at 50 or 100 mg/day, adjustable to 75 mg/day at day 90, or a 5 mg/day permeation-enhanced testosterone patch.
What the study found
At 90 days, lean mass increased 2.74 kg with 100 mg gel versus 1.28 kg with 50 mg and 1.20 kg with patch. Leg-press strength increased 11–13 kg across groups. Gel reduced fat mass; hematocrit, hemoglobin, and PSA rose.
Limitations & context
This abstract assessment reports no placebo group. DXA lean mass is not direct muscle-size measurement, and the dose-adjustment design complicates fixed-dose comparisons.

Read summary source ↗ · Prepared 10/6/2026 · AI-assisted, source-based summary

Review record & corrections

Summary prepared: . Source scope: abstract. This is an AI-assisted source summary, not an independent clinician sign-off.

No public field-by-field revision history is available for this card yet. The date above is the summary date, not proof that every field was updated then.

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Research findings apply to the population and conditions studied. This educational summary is not a treatment recommendation or a formal assessment of study quality.

Original publication ↗ · DOI: 10.1210/jcem.85.8.6747

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