A Clinical Trial to Evaluate the Efficacy and Safety of Testosterone Gel in Adult Hypogonadal Males

The data were presented using descriptive statistics. The 95% confidence interval (CI) of the proportion (response) was estimated using the normal approximation to the binomial distribution. The study was considered to have met its efficacy criteria if the percentage was ≥ 75% and the lower bound of the 95% CI was ≥ 65%.

Time frame: At Day 90

Population: Full Analysis Set (FAS) population was used and included subjects who had sufficient pharmacokinetic data to determine a Cave(0-24) on Days 14, 35, 56, or 90, or discontinued the study early due to medical or safety reasons.

Data collected from the five domains of sexual functions were summarized by descriptive statistics. The domains were: 1. Erectile function (6 items, questions 1-5 and 15) (Score range:1-30) 2. Orgasmic function (2 items, questions 9-10) (Score range: 0-10) 3. Sexual desire (2 items, questions 11-12) (Score range: 2-10) 4. Intercourse satisfaction (3 items, questions 6-8) (Score range: 0-15) 5. Overall satisfaction (2 items, questions 13-14) (Score range: 2-10) A score of 0-5 is awarded to questions 1 to 10 and a score of 1-5 is awarded to questions 11 to 15. Total score was calculated by summing up scores of each domain and ranged from 5 to 75. Low score indicates severe dysfunction and a high score indicates no dysfunction in sexual function.

Time frame: At Days 35 and 90

Population: FAS population was used and included subjects who had sufficient pharmacokinetic data to determine a Cave(0-24) on Days 14, 35, 56, or 90, or discontinued the study early due to medical or safety reasons.

The MAF contains four sub-domains: 1. Severity (2 items, questions 1-2) (Score range: 2-20) 2. Distress (1 item, question 3) (Score range: 1-10) 3. Degree of interference in activities of daily living (11 items, questions 4-14) (Score range: 11-110) 4. Timing (2 items, questions 15-16) (Score range: 5-20) A score of 1-10 is awarded to each of the 14 questions across the 3 domains. The timing domain (categorical in nature) are scored from 1-4. The scores are converted to 1-10 scale by multiplying each score by 2.5. Lower score in each domain indicates improvement in fatigue. To calculate GFI : Score of question 15 is converted to a 0-10 scale by multiplying each score by 2.5 and then sum questions 1, 2, 3, average of 4-14, and newly scored question 15. A score of zero is assigned to question 2-16, if patient select 'no fatigue' to question 1. Question 16 is not included in GFI calculation. The GFI ranged from 1 (no fatigue) to 50 (severe fatigue).

Time frame: At Days 35 and 90

Population: FAS population was used and included subjects who had sufficient pharmacokinetic data to determine a Cave(0-24) on Days 14, 35, 56, or 90, or discontinued the study early due to medical or safety reasons.

Data collected from the SF-12 questionnaire, based on the norm-based scores was used to assess improvement in the psychometrically-based physical component summary (PCS) and mental component summary (MCS). Both PCS and MCS contained four sub-domains: PCS: 1. Physical Functioning (2 items, questions 2-3) 2. Role-Physical (2 items, questions 4-5) 3. Bodily Pain (1 item, question 8) 4. General Health (1 item, question 1) MCS: 1. Vitality (1 item, question 10) 2. Social Functioning (1 item, question 12) 3. Role-Emotional (2 items, questions 6-7) 4. Mental Health (2 items, questions 9 and 11) PCS and MCS composite scores are computed using the scores of the 12 questions and range from 0-100, where a zero score indicates the lowest level of health measured by the scales and 100 indicates the highest level of health. Positive change from baseline indicated improvement in physical and mental health.

Time frame: At Days 35 and 90

Population: FAS population was used and included subjects who had sufficient pharmacokinetic data to determine a Cave(0-24) on Days 14, 35, 56, or 90, or discontinued the study early due to medical or safety reasons.

A validated LC/MS/MS method was used to determine the levels of total testosterone and dihydrotestosterone.

Time frame: Samples collected at pre-dose, 2, 4, 6, 8 & 24 hours post-dose on Days 14, 35 & 56, and at pre-dose, 2, 4, 6, 8, 10, 12, 18 & 24 hours post-dose on Day 90

Population: FAS population was used and included subjects who had sufficient pharmacokinetic data to determine a Cave(0-24) on Days 14, 35, 56, or 90, or discontinued the study early due to medical or safety reasons. Number of subjects was less than 155 in some group(s) as parameter could not be calculated due to missing concentrations for that time-point.

A validated high pressure liquid chromatography with tandem mass spectrometry detection (LC/MS/MS) method was used to determine the levels of total testosterone and dihydrotestosterone.

Time frame: Samples collected at pre-dose, 2, 4, 6, 8 & 24 hours post-dose on Days 14, 35 & 56, and at pre-dose, 2, 4, 6, 8, 10, 12, 18 & 24 hours post-dose on Day 90

Population: FAS population was used and included subjects who had sufficient pharmacokinetic data to determine a Cave(0-24) on Days 14, 35, 56, or 90, or discontinued the study early due to medical or safety reasons. Number of subjects was less than 155 in some group(s) as parameter could not be calculated due to missing concentrations for that time-point.

A validated LC/MS/MS method was used to determine the levels of total testosterone and dihydrotestosterone.

Time frame: Samples collected at pre-dose, 2, 4, 6, 8 & 24 hours post-dose on Days 14, 35 & 56, and at pre-dose, 2, 4, 6, 8, 10, 12, 18 & 24 hours post-dose on Day 90

Population: FAS population was used and included subjects who had sufficient pharmacokinetic data to determine a Cave(0-24) on Days 14, 35, 56, or 90, or discontinued the study early due to medical or safety reasons. Of 155 subjects, one subject discontinued due to an adverse event after Day 14 visit and not included in the analysis.

A validated LC/MS/MS method was used to determine the levels of total testosterone and dihydrotestosterone.

Time frame: Samples collected at pre-dose, 2, 4, 6, 8 & 24 hours post-dose on Days 14, 35 & 56, and at pre-dose, 2, 4, 6, 8, 10, 12, 18 & 24 hours post-dose on Day 90

Population: FAS population was used and included subjects who had sufficient pharmacokinetic data to determine a Cave(0-24) on Days 14, 35, 56, or 90, or discontinued the study early due to medical or safety reasons. Of 155 subjects, one subject discontinued due to an adverse event after Day 14 visit and not included in the analysis.

A validated LC/MS/MS method was used to determine the levels of total testosterone and dihydrotestosterone.

Time frame: Samples collected at pre-dose, 2, 4, 6, 8 & 24 hours post-dose on Days 14, 35 & 56, and at pre-dose, 2, 4, 6, 8, 10, 12, 18 & 24 hours post-dose on Day 90

Population: FAS population was used and included subjects who had sufficient pharmacokinetic data to determine a Cave(0-24) on Days 14, 35, 56, or 90, or discontinued the study early due to medical or safety reasons. Of 155 subjects, one subject discontinued due to adverse event after Day 14 visit and not included in the analysis.

The data were presented using descriptive statistics. No statistical analysis was performed.

Time frame: At 14, 35 and 56

Population: FAS population was used and included subjects who had sufficient pharmacokinetic data to determine a Cave(0-24) on Days 14, 35, 56, or 90, or discontinued the study early due to medical or safety reasons.