TY - JOUR
T1 - Testosterone 2% gel can normalize testosterone concentrations in men with low testosterone regardless of body mass index
AU - Dobs, Adrian
AU - Norwood, Paul
AU - Potts, Susan
AU - Gould, Errol
AU - Chitra, Surya
N1 - Funding Information:
Conflict of Interest: Dr. Adrian Dobs declares that she has received honoraria, travel grants, and research funding from pharmaceutical research sponsors including Endo Pharmaceuticals, Clarus, Takeda, ProStrakan, Indevus, and the National Institutes of Health. She has been on a speaker's bureau/advisory board and has an investigator-initiated trial with Endo Pharmaceuticals. She holds no stock in Endo Pharmaceuticals or any other pharmaceutical company.
PY - 2014
Y1 - 2014
N2 - Introduction: Little is known about the effect of body mass index (BMI) on the efficacy and safety of testosterone therapy in hypogonadal men. A prior noncomparative trial demonstrated that testosterone 2% gel restored testosterone levels in hypogonadal men and was generally well tolerated. Aim: This post hoc analysis evaluated the influence of BMI on the pharmacokinetics of testosterone therapy in men with low testosterone. Methods: Men (N=149) aged 18-75 applied testosterone 2% gel to the front and inner thigh once daily for 90 days. Starting dose was 40mg/day, which could be adjusted at days 14, 35, and 60. Patients were split into categories depending on baseline BMI: Tertile 1 (≤29.1kg/m2), Tertile 2 (29.2-32.4kg/m2), and Tertile 3 (>32.4kg/m2). Main Outcome Measures: Efficacy end points were average serum total testosterone concentrations over 24 hours and maximum serum testosterone concentrations at day 90. Adverse events were recorded. Results: The efficacy analysis included 129 men with low testosterone (mean age 52.9, 54.0, and 54.2 years for Tertiles 1, 2, and 3, respectively) defined as serum testosterone <250-300ng/dL. Baseline testosterone levels were comparable across BMI tertiles. After 90 days of treatment with testosterone 2% gel (≥40mg/day), 79.1%, 79.5%, and 73.8% of patients in Tertiles 1, 2, and 3, respectively, achieved serum testosterone concentrations in the physiologic range (i.e., ≥300 to ≤1,140ng/dL). The mean average daily dose at day 90 was higher in participants in Tertiles 3 vs. 2 (P=0.039) and Tertiles 3 vs. 1 (P=0.010). The gel was generally well tolerated, with skin reactions the most commonly reported adverse event (16.1%; n=24). Conclusions: In this study, daily application of testosterone 2% gel was effective at returning serum testosterone to physiologic levels in men with low testosterone and high BMI, although required dose was affected by BMI.
AB - Introduction: Little is known about the effect of body mass index (BMI) on the efficacy and safety of testosterone therapy in hypogonadal men. A prior noncomparative trial demonstrated that testosterone 2% gel restored testosterone levels in hypogonadal men and was generally well tolerated. Aim: This post hoc analysis evaluated the influence of BMI on the pharmacokinetics of testosterone therapy in men with low testosterone. Methods: Men (N=149) aged 18-75 applied testosterone 2% gel to the front and inner thigh once daily for 90 days. Starting dose was 40mg/day, which could be adjusted at days 14, 35, and 60. Patients were split into categories depending on baseline BMI: Tertile 1 (≤29.1kg/m2), Tertile 2 (29.2-32.4kg/m2), and Tertile 3 (>32.4kg/m2). Main Outcome Measures: Efficacy end points were average serum total testosterone concentrations over 24 hours and maximum serum testosterone concentrations at day 90. Adverse events were recorded. Results: The efficacy analysis included 129 men with low testosterone (mean age 52.9, 54.0, and 54.2 years for Tertiles 1, 2, and 3, respectively) defined as serum testosterone <250-300ng/dL. Baseline testosterone levels were comparable across BMI tertiles. After 90 days of treatment with testosterone 2% gel (≥40mg/day), 79.1%, 79.5%, and 73.8% of patients in Tertiles 1, 2, and 3, respectively, achieved serum testosterone concentrations in the physiologic range (i.e., ≥300 to ≤1,140ng/dL). The mean average daily dose at day 90 was higher in participants in Tertiles 3 vs. 2 (P=0.039) and Tertiles 3 vs. 1 (P=0.010). The gel was generally well tolerated, with skin reactions the most commonly reported adverse event (16.1%; n=24). Conclusions: In this study, daily application of testosterone 2% gel was effective at returning serum testosterone to physiologic levels in men with low testosterone and high BMI, although required dose was affected by BMI.
KW - Body Mass Index
KW - Hypogonadism
KW - Testosterone Replacement
KW - Transdermal Systemic Testosterone Gel
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U2 - 10.1111/jsm.12411
DO - 10.1111/jsm.12411
M3 - Article
C2 - 24283410
AN - SCOPUS:84895448794
VL - 11
SP - 857
EP - 864
JO - Journal of Sexual Medicine
JF - Journal of Sexual Medicine
SN - 1743-6095
IS - 3
ER -