Skip to content

Anabolic and Inflammatory Responses to Short-Term Testosterone Administration in Older Men

Anabolic and Inflammatory Responses to Short-Term Testosterone Administration in Older Men

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00957801
Enrollment
29
Registered
2009-08-12
Start date
2009-03-31
Completion date
2015-12-31
Last updated
2018-05-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sarcopenia

Keywords

Sarcopenia, Aging muscle, Androgen, Cytokines, Muscle metabolism

Brief summary

Skeletal muscle loss is a common consequence of aging and in some individuals reaches a level that compromises health and quality of life. Age-associated increases in cytokine and inflammatory signaling may be important contributors to this process. The investigators will assess the practical question of whether testosterone injection and gel application elicit similar responses. Resistance exercise will be used as a means of stimulating both inflammatory and anabolic responses in skeletal muscle. In order to assess the effects of testosterone on these responses, subjects will perform resistance exercise on two occasions separated by 7 days. The first session will be performed prior to the initiation of testosterone and/or medrol therapy and the second session will be performed after receiving therapy for 7 days.

Detailed description

4 groups of healthy men aged 60 - 85 years were studied over 15 days, in 2 distinct time periods, pre-treatment and treatment. Pre treatment week from study day -7 to study day -1. Treatment week from study day 1 to study day 8. Groups: 1. Testosterone by injection (100mg testosterone enanthate) administered on study day 1. 2. Testosterone by gel application (10g/day Androgel 1%) administered daily beginning on study day 1 through study day 7. 3. Methylpredisone (Medrol) dose pack beginning on study day 1 (24mg) and decreasing by 4mg each day, with an additional 4mg taken on study day 7. Study day 1 (24mg), study day 2 (20mg), study day 3 (16mg), study day 4 (12mg), study day 5 (8mg), study day 6 (4mg), study day 7 (4mg). 4. Testosterone by injection (100mg testosterone enanthate) administered on study day 1 and Methylpredisone (Medrol) dose pack beginning on study day 1 (24mg) and decreasing by 4mg each day, with an additional 4mg taken on study day 7. Study day 1 (24mg), study day 2 (20mg), study day 3 (16mg), study day 4 (12mg), study day 5 (8mg), study day 6 (4mg), study day 7 (4mg). Subjects were asked to fill out the Brief Fatigue Inventory daily for all 15 days. Subjects were studied at the clinical research center before treatment (study day 1) and after treatment (study day 8). Resistance exercise was performed on study days 1 and 8. Blood was drawn before and after exercise for measurement of serum cortisol. Subjects were asked to return to the clinical research center each day during the treatment week (study days 1-8) for blood draws for measurement of total testosterone, estradiol and C-reactive protein (CRP). Labs were drawn on study days 1 and 8 for complete blood count, comprehensive metabolic panel and lipid panel. Part 1: In this part of the project we will study the acute response to testosterone treatment between two groups of subjects, comparing two methods of administration (injection vs. topical gel) in order to obtain pilot information for a subsequent, randomized, blinded long-term investigation. Part 2: In this part of the project we will study the acute response to Medrol (methylprednisolone) taken over 7 days with or without testosterone (given as 100mg IM) in order to obtain pilot information for a subsequent, randomized, blinded long-term investigation.

Interventions

100 mg single IM injection

DRUGTestosterone gel

Testosterone gel 10 mg. administered topically daily for seven days

DRUGMedrol

Medrol 6 day dose pack with an additional 4mg dose on day 7

Sponsors

The University of Texas Medical Branch, Galveston
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
60 Years to 85 Years
Healthy volunteers
Yes

Inclusion criteria

* Age: 60-85 * Gender: Male

Exclusion criteria

* Exclusionary medications will be an anticoagulant (Coumadin) because of the risk of bleeding during the biopsy procedure. Additional medications which will be disallowed for participation include: anabolic steroids, nitrates, antihistamines, and glucocorticoids. * The subjects must be able to successfully complete an exercise stress test using the Bruce protocol . Subjects will be excluded without exercise testing, with a history of angina that occurs with exertion or at rest, or a myocardial infarction within the last 12 months. Subjects that demonstrate ³0.1 milliVolts (mV) horizontal or downsloping ST segment depression, a drop in systolic blood pressure of ³10 mm Hg, and/or frequent or repetitive arrhythmias (defined as ³10 premature ventricular contractions (PVC)/min, or couplets) during the stress test will be excluded. * Subjects with LDL cholesterol above 200 mg/dL will be excluded . * Any man with a history of breast cancer or prostate cancer, or any indication of an occult carcinoma from an elevation of prostate specific antigen (PSA) above 4.0 mg/L (53), or severe benign prostatic hypertrophy (BPH) by history (frequent urination, reduced stream) will be excluded. * Subjects with liver dysfunction evidenced by a history of hepatitis B or hepatitis C, or by a three-fold elevation of liver enzymes (Alk phos, alanine aminotransferase (ALT), aspartate amino-transferase (AST) above normal on screening will be excluded from the study. * Any subject with a blood pressure on three consecutive measurements taken at one week intervals that has a systolic pressure ³ 140 or a diastolic blood pressure ³ 90 will be excluded. * Any subject who has a major medical illness such as diabetes, chronic obstructive pulmonary disease, or sleep apnea will be excluded. Moreover, subjects will not have a recent history of smoking tobacco. Morbidly obese older men (BMI \> 35) will also be excluded. * Subjects will evidence of kidney disease (serum creatinine \> 2.0mg/dl) will be excluded from participation. * Any subject with thyroid disease as determined by an abnormal thyroid stimulating hormone (TSH) level will be excluded from participation. * Any subject testing positive for HIV will be excluded . * Allergy to iodine, a component of Betadine which is used to prepare the subject's skin for invasive procedures, will be cause for exclusion from this study. * Men with serum total testosterone concentrations greater than 500 ng/dL will be excluded. * Subjects who engage in high intensity resistance training on a regular basis will be excluded. * Subjects with a known coagulation disorder or with clinical evidence indicative of a bleeding disorder (easy bruising, free bleeders) will not be enrolled in this study due to potential problems that could arise from muscle biopsy procedures.

Design outcomes

Primary

MeasureTime frameDescription
Serum Total Testosterone Measured Before Treatment on Treatment Day 1 (Baseline Study)treatment day 1Testosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.
Serum Total Testosterone Measured on Treatment Day 2treatment day 2Testosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.
Serum Total Testosterone Measured on Treatment Day 3treatment day 3TTestosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.
Serum Total Testosterone Measured on Treatment Day 4treatment day 4Testosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.
Serum Total Testosterone Measured on Treatment Day 5treatment day 5TesTestosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.
Serum Total Testosterone Measured on Treatment Day 6treatment day 6Testosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.
Serum Total Testosterone Measured on Treatment Day 7treatment day 7Testosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.
Serum Total Testosterone Measured on Treatment Day 8 (Post Study)treatment day 8Testosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.
Serum Estradiol Measured on Treatment Day 1 (Baseline Study)treatment day 1Estradiol was measured during the treatment week (treatment days 1 and 8). Serum estradiol was analyzed by UTMB clinical laboratory. Normal ranges are 20-47 pg/mL.
Serum Estradiol Measured on Treatment Day 8 (Post Study)treatment day 8Estradiol was measured during the treatment week (treatment days 1 and 8). Serum estradiol was analyzed by UTMB clinical laboratory. Normal ranges are 20-47 pg/mL.
Prostate Specific Antigen (PSA) Measured on Treatment Day 1 (Baseline Study)treatment day 1Prostate Specific Antigen (PSA) was measured before and after treatment week (study treatment days 1 and 8). PSA was analyzed by UTMB clinical laboratory. Normal ranges are less than 4.0 ng/mL.
Prostate Specific Antigen (PSA) Measured on Treatment Day 8 (Post Study)treatment day 8Prostate Specific Antigen (PSA) was measured before and after treatment week (study treatment days 1 and 8). PSA was analyzed by UTMB clinical laboratory. Normal ranges are less than 4.0 ng/mL.
Hematocrit Measured on Treatment Day 1 (Baseline Study)treatment day 1Hematocrit was measured before and after treatment week (study treatment days 1 and 8). Hematocrit was analyzed by UTMB clinical laboratory. Normal ranges are 38.4% - 49.3%.
Hematocrit Measured on Treatment Day 8 (Post Study)treatment day 8Hematocrit was measured before and after treatment week (study treatment days 1 and 8). Hematocrit was analyzed by UTMB clinical laboratory. Normal ranges are 38.4% - 49.3%.
Total Cholesterol Measured on Treatment Day 1 (Baseline Study)treatment day 1Total Cholesterol was measured before and after treatment week (study treatment days 1 and 8). Total cholesterol was analyzed by UTMB clinical laboratory. Normal ranges are 120-200 mg/dL.
Total Cholesterol Measured on Treatment Day 8 (Post Study)treatment day 8Total Cholesterol was measured before and after treatment week (study treatment days 1 and 8). Total cholesterol was analyzed by UTMB clinical laboratory. Normal ranges are 120-200 mg/dL.
Triglycerides Measured on Treatment Day 1 (Baseline Study)treatment day 1Triglycerides were measured before and after treatment week (study treatment days 1 and 8). Total cholesterol was analyzed by UTMB clinical laboratory. Normal ranges are 30-170 mg/dL.
Triglycerides Measured on Treatment Day 8 (Post Study)treatment day 8Triglycerides were measured before and after treatment week (study treatment days 1 and 8). Total cholesterol was analyzed by UTMB clinical laboratory. Normal ranges are 30-170 mg/dL.
High-Density Lipoproteins (HDL) Measured on Treatment Day 1 (Baseline Study)treatment day 1High Density Lipoproteins (HDL) was measured before and after treatment week (study treatment days 1 and 8). HDL was analyzed by UTMB clinical laboratory. Normal ranges are higher than 35 mg/dL.
High-Density Lipoproteins (HDL) Measured on Treatment Day 8 (Post Study)treatment day 8High Density Lipoproteins (HDL) was measured before and after treatment week (study treatment days 1 and 8). HDL was analyzed by UTMB clinical laboratory. Normal ranges are higher than 35 mg/dL.
Low-Density Lipoproteins (LDL) Measured on Treatment Day 1 (Baseline Study)treatment day 1Low Density Lipoproteins (LDL) was measured before and after treatment week (study treatment days 1 and 8). LDL was analyzed by UTMB clinical laboratory. Normal ranges are less than 160 mg/dL.
Low-Density Lipoproteins (LDL) Measured on Treatment Day 8 (Post Study)treatment day 8Low Density Lipoproteins (LDL) was measured before and after treatment week (study treatment days 1 and 8). LDL was analyzed by UTMB clinical laboratory. Normal ranges are less than 160 mg/dL.
Very Low-Density Lipoproteins (VLDL) Measured on Treatment Day 1 (Baseline Study)treatment day 1Very Low Density Lipoproteins (VLDL) was measured before and after treatment week (study treatment days 1 and 8). VLDL was analyzed by UTMB clinical laboratory. Normal ranges are 5-60 mg/dL.
Very Low-Density Lipoproteins (VLDL) Measured on Treatment Day 8 (Post Study)treatment day 8Very Low Density Lipoproteins (VLDL) was measured before and after treatment week (study treatment days 1 and 8). VLDL was analyzed by UTMB clinical laboratory. Normal ranges are 5-60 mg/dL.
C-Reactive Protein (CRP) Measured on Treatment Day 1 (Baseline Study)treatment day 1C-Reactive Protein (CRP) was measured during the treatment week (study treatment days 1 and 8). CRP was analyzed by UTMB clinical laboratory. Normal ranges are 0.0 - 0.8 mg/dL.
C-Reactive Protein (CRP) Measured on Treatment Day 8 (Post Study)treatment day 8C-Reactive Protein (CRP) was measured during the treatment week (study treatment days 1 and 8). CRP was analyzed by UTMB clinical laboratory. Normal ranges are 0.0 - 0.8 mg/dL.
Dehydroepiandrosterone Sulfate (DHEA-S) Measured on Treatment Day 1 (Baseline Study)treatment day 1Dehydroepiandrosterone sulfate (DHEA-S) was measured before and after the treatment week on study treatment days 1 and 8. DHEA-S was analyzed by immunoassay on a Siemens Immulite 2000. Normal ranges are 28-290 ug/dL.
Dehydroepiandrosterone Sulfate (DHEA-S) Measured on Treatment Day 8 (Post Study)treatment day 8Dehydroepiandrosterone sulfate (DHEA-S) was measured before and after the treatment week on study treatment days 1 and 8. DHEA-S was analyzed by immunoassay on a Siemens Immulite 2000. Normal ranges are 28-290 ug/dL.
Sex Hormone Binding Globulin (SHBG) Measured on Treatment Day 1 (Baseline Study)treatment day 1Sex Hormone Binding Globulin (SHBG) was measured before and after the treatment week on study treatment days 1 and 8. SHBG was analyzed by immunoassay on a Siemens Immulite 2000. Normal ranges are 10-57 nmol/L.
Sex Hormone Binding Globulin (SHBG) Measured on Treatment Day 8 (Post Study)treatment day 8Sex Hormone Binding Globulin (SHBG) was measured before and after the treatment week on study treatment days 1 and 8. SHBG was analyzed by immunoassay on a Siemens Immulite 2000. Normal ranges are 10-57 nmol/L.
Insulin Measured on Treatment Day 1 (Baseline Study)treatment day 1Insulin was measured before and after the treatment week on study treatment days 1 and 8. Insulin was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is less than 25 uIu/mL.
Insulin Measured on Treatment Day 8 (Post Study)treatment day 8Insulin was measured before and after the treatment week on study treatment days 1 and 8. Insulin was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is less than 25 uIu/mL.
Insulin Like Growth Factor 1 (IGF-1) Measured on Treatment Day 1 (Baseline Study)treatment day 1Insulin like growth factor 1 (IGF-1) was measured before and after the treatment week on study treatment days 1 and 8. IGF-1 was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is 33-220 ng/mL.
Insulin Like Growth Factor 1 (IGF-1) Measured on Treatment Day 8 (Post Study)treatment day 8Insulin like growth factor 1 (IGF-1) was measured before and after the treatment week on study treatment days 1 and 8. IGF-1 was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is 33-220 ng/mL.
Cortisol Measured on Treatment Day 1 (Baseline Study) BEFORE Exercise Protocoltreatment day 1 - before exerciseCortisol was measured before and immediately after the exercise protocol, before and after the treatment week on study treatment days 1 and 8. Serum Cortisol was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is 5-25 ug/dL.
Cortisol Measured on Treatment Day 1 (Baseline Study) AFTER Exercise Protocoltreatment day 1 - after exerciseCortisol was measured before and immediately after the exercise protocol, before and after the treatment week on study treatment days 1 and 8. Serum Cortisol was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is 5-25 ug/dL.
Cortisol Measured on Treatment Day 8 (Post Study) BEFORE Exercise Protocoltreatment day 8 - before exerciseCortisol was measured before and immediately after the exercise protocol, before and after the treatment week on study treatment days 1 and 8. Serum Cortisol was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is 5-25 ug/dL.
Cortisol Measured on Treatment Day 8 (Post Study) AFTER Exercise Protocoltreatment day 8 - after exerciseCortisol was measured before and immediately after the exercise protocol, before and after the treatment week on study treatment days 1 and 8. Serum Cortisol was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is 5-25 ug/dL.
Global Fatigue Score as Measured by Brief Fatigue Inventory (BFI) in the Pre-treatment WeekStudy days -7 to -1 (Pre - treatment)The Brief Fatigue Inventory is a 9 item questionnaire that assesses perceptual fatigue as well as fatigue interferences (e.g. interference with enjoyment of life), with 0 being no fatigue and 10 being as bad as you can imagine. The Global Fatigue score is calculated by averaging the answers of all the questions. This data is presented as the pre-treatment week average of study days -7 to -1.
Global Fatigue Score as Measured by Brief Fatigue Inventory (BFI) During the Treatment WeekStudy days 1-7 (treatment week)The Brief Fatigue Inventory is a 9 item questionnaire that assesses perceptual fatigue as well as fatigue interferences (e.g. interference with enjoyment of life), with 0 being no fatigue and 10 being as bad as you can imagine. The Global Fatigue score is calculated by averaging the answers of all the questions. This data is presented as the treatment week average of study days 1-8.

Countries

United States

Participant flow

Pre-assignment details

46 subjects screened, 15 subjects did not qualify, 2 subjects did not choose to participate. 29 subjects began the study and 28 subjects completed the study.

Participants by arm

ArmCount
Testosterone Injection
Testosterone enanthate given as a single 100 mg Intramuscular (IM) injection Testosterone injection: 100 mg single IM injection
7
Testosterone Gel
Testosterone topical gel (Androgel 1%) 10 mg administered daily for seven days Testosterone gel: Testosterone gel 10 mg. administered topically daily for seven days
7
Testosterone Injection and Medrol 6 Day Dose Pack
Testosterone enanthate given as a single 100mg Intramuscular (IM) injection. Medrol 6 day dose pack was administered as directed with daily doses decreasing by 4mg per day with an additional 4mg given on day 7. Day one dose: 24mg, day two dose: 20mg, day three dose: 16mg, day four dose: 12mg, day five dose: 8mg, day six dose: 4 mg, day seven dose: 4mg. Testosterone injection: 100 mg single IM injection Medrol: Medrol 6 day dose pack with an additional 4mg dose on day 7
7
Medrol 6 Day Dose Pack
Medrol 6 day dose pack was administered as directed with daily doses decreasing by 4mg per day with an additional 4mg given on day 7. Day one dose: 24mg, day two dose: 20mg, day three dose: 16mg, day four dose: 12mg, day five dose: 8mg, day six dose: 4 mg, day seven dose: 4mg. Medrol: Medrol 6 day dose pack with an additional 4mg dose on day 7
8
Total29

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyWithdrawal by Subject0001

Baseline characteristics

CharacteristicTotalTestosterone Injection and Medrol 6 Day Dose PackTestosterone InjectionTestosterone GelMedrol 6 Day Dose Pack
Age, Continuous72 years
STANDARD_DEVIATION 6
73 years
STANDARD_DEVIATION 7.5
72 years
STANDARD_DEVIATION 4
73 years
STANDARD_DEVIATION 5
71 years
STANDARD_DEVIATION 7
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants0 Participants0 Participants1 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
28 Participants7 Participants7 Participants6 Participants8 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Fat Mass as measured by DEXA28.59 kilograms
STANDARD_DEVIATION 9.99
25.33 kilograms
STANDARD_DEVIATION 26.12
28.74 kilograms
STANDARD_DEVIATION 28.64
33.32 kilograms
STANDARD_DEVIATION 33.82
28.40 kilograms
STANDARD_DEVIATION 28.01
Lean Body Mass as measured by DEXA52.77 kilograms
STANDARD_DEVIATION 7.73
49.22 kilograms
STANDARD_DEVIATION 47.85
52.60 kilograms
STANDARD_DEVIATION 51.42
53.06 kilograms
STANDARD_DEVIATION 52.66
57.34 kilograms
STANDARD_DEVIATION 57.84
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
2 Participants1 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
27 Participants6 Participants7 Participants7 Participants7 Participants
Region of Enrollment
United States
29 Participants7 Participants7 Participants7 Participants8 Participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants0 Participants0 Participants
Sex: Female, Male
Male
29 Participants7 Participants7 Participants7 Participants8 Participants
Total Mass as Measured by DEXA84.42 kilograms
STANDARD_DEVIATION 15.8
77.51 kilograms
STANDARD_DEVIATION 76.93
84.2 kilograms
STANDARD_DEVIATION 82.83
89.6 kilograms
STANDARD_DEVIATION 89.7
89.04 kilograms
STANDARD_DEVIATION 89.15

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 70 / 70 / 70 / 8
other
Total, other adverse events
0 / 70 / 70 / 70 / 8
serious
Total, serious adverse events
0 / 70 / 70 / 70 / 8

Outcome results

Primary

Cortisol Measured on Treatment Day 1 (Baseline Study) AFTER Exercise Protocol

Cortisol was measured before and immediately after the exercise protocol, before and after the treatment week on study treatment days 1 and 8. Serum Cortisol was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is 5-25 ug/dL.

Time frame: treatment day 1 - after exercise

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionCortisol Measured on Treatment Day 1 (Baseline Study) AFTER Exercise Protocol7.71 ug/dLStandard Deviation 3.16
Testosterone GelCortisol Measured on Treatment Day 1 (Baseline Study) AFTER Exercise Protocol7.20 ug/dLStandard Deviation 2.71
Medrol 6 Day Dose PackCortisol Measured on Treatment Day 1 (Baseline Study) AFTER Exercise Protocol4.76 ug/dLStandard Deviation 1.17
Testosterone Injection and Medrol 6 Day Dose PackCortisol Measured on Treatment Day 1 (Baseline Study) AFTER Exercise Protocol4.15 ug/dLStandard Deviation 1.64
Primary

Cortisol Measured on Treatment Day 1 (Baseline Study) BEFORE Exercise Protocol

Cortisol was measured before and immediately after the exercise protocol, before and after the treatment week on study treatment days 1 and 8. Serum Cortisol was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is 5-25 ug/dL.

Time frame: treatment day 1 - before exercise

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionCortisol Measured on Treatment Day 1 (Baseline Study) BEFORE Exercise Protocol7.25 ug/dLStandard Deviation 2.16
Testosterone GelCortisol Measured on Treatment Day 1 (Baseline Study) BEFORE Exercise Protocol6.00 ug/dLStandard Deviation 1.67
Medrol 6 Day Dose PackCortisol Measured on Treatment Day 1 (Baseline Study) BEFORE Exercise Protocol6.64 ug/dLStandard Deviation 1.71
Testosterone Injection and Medrol 6 Day Dose PackCortisol Measured on Treatment Day 1 (Baseline Study) BEFORE Exercise Protocol6.28 ug/dLStandard Deviation 1.61
Primary

Cortisol Measured on Treatment Day 8 (Post Study) AFTER Exercise Protocol

Cortisol was measured before and immediately after the exercise protocol, before and after the treatment week on study treatment days 1 and 8. Serum Cortisol was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is 5-25 ug/dL.

Time frame: treatment day 8 - after exercise

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionCortisol Measured on Treatment Day 8 (Post Study) AFTER Exercise Protocol7.05 ug/dLStandard Deviation 2.48
Testosterone GelCortisol Measured on Treatment Day 8 (Post Study) AFTER Exercise Protocol6.28 ug/dLStandard Deviation 3.41
Medrol 6 Day Dose PackCortisol Measured on Treatment Day 8 (Post Study) AFTER Exercise Protocol4.40 ug/dLStandard Deviation 1.9
Testosterone Injection and Medrol 6 Day Dose PackCortisol Measured on Treatment Day 8 (Post Study) AFTER Exercise Protocol5.78 ug/dLStandard Deviation 2.38
Primary

Cortisol Measured on Treatment Day 8 (Post Study) BEFORE Exercise Protocol

Cortisol was measured before and immediately after the exercise protocol, before and after the treatment week on study treatment days 1 and 8. Serum Cortisol was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is 5-25 ug/dL.

Time frame: treatment day 8 - before exercise

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionCortisol Measured on Treatment Day 8 (Post Study) BEFORE Exercise Protocol7.84 ug/dLStandard Deviation 3.13
Testosterone GelCortisol Measured on Treatment Day 8 (Post Study) BEFORE Exercise Protocol5.97 ug/dLStandard Deviation 2.18
Medrol 6 Day Dose PackCortisol Measured on Treatment Day 8 (Post Study) BEFORE Exercise Protocol6.28 ug/dLStandard Deviation 2.9
Testosterone Injection and Medrol 6 Day Dose PackCortisol Measured on Treatment Day 8 (Post Study) BEFORE Exercise Protocol5.19 ug/dLStandard Deviation 2.76
Primary

C-Reactive Protein (CRP) Measured on Treatment Day 1 (Baseline Study)

C-Reactive Protein (CRP) was measured during the treatment week (study treatment days 1 and 8). CRP was analyzed by UTMB clinical laboratory. Normal ranges are 0.0 - 0.8 mg/dL.

Time frame: treatment day 1

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionC-Reactive Protein (CRP) Measured on Treatment Day 1 (Baseline Study)0.47 mg/dLStandard Deviation 0.23
Testosterone GelC-Reactive Protein (CRP) Measured on Treatment Day 1 (Baseline Study)0.33 mg/dLStandard Deviation 0.08
Medrol 6 Day Dose PackC-Reactive Protein (CRP) Measured on Treatment Day 1 (Baseline Study)0.32 mg/dLStandard Deviation 0.4
Testosterone Injection and Medrol 6 Day Dose PackC-Reactive Protein (CRP) Measured on Treatment Day 1 (Baseline Study)0.4 mg/dLStandard Deviation 0.22
Primary

C-Reactive Protein (CRP) Measured on Treatment Day 8 (Post Study)

C-Reactive Protein (CRP) was measured during the treatment week (study treatment days 1 and 8). CRP was analyzed by UTMB clinical laboratory. Normal ranges are 0.0 - 0.8 mg/dL.

Time frame: treatment day 8

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionC-Reactive Protein (CRP) Measured on Treatment Day 8 (Post Study)0.47 mg/dLStandard Deviation 0.22
Testosterone GelC-Reactive Protein (CRP) Measured on Treatment Day 8 (Post Study)0.31 mg/dLStandard Deviation 0.04
Medrol 6 Day Dose PackC-Reactive Protein (CRP) Measured on Treatment Day 8 (Post Study)0.32 mg/dLStandard Deviation 0.4
Testosterone Injection and Medrol 6 Day Dose PackC-Reactive Protein (CRP) Measured on Treatment Day 8 (Post Study)0.3 mg/dLStandard Deviation 0
Primary

Dehydroepiandrosterone Sulfate (DHEA-S) Measured on Treatment Day 1 (Baseline Study)

Dehydroepiandrosterone sulfate (DHEA-S) was measured before and after the treatment week on study treatment days 1 and 8. DHEA-S was analyzed by immunoassay on a Siemens Immulite 2000. Normal ranges are 28-290 ug/dL.

Time frame: treatment day 1

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionDehydroepiandrosterone Sulfate (DHEA-S) Measured on Treatment Day 1 (Baseline Study)46.34 ug/dLStandard Deviation 48.14
Testosterone GelDehydroepiandrosterone Sulfate (DHEA-S) Measured on Treatment Day 1 (Baseline Study)34.16 ug/dLStandard Deviation 16.54
Medrol 6 Day Dose PackDehydroepiandrosterone Sulfate (DHEA-S) Measured on Treatment Day 1 (Baseline Study)62.55 ug/dLStandard Deviation 53.2
Testosterone Injection and Medrol 6 Day Dose PackDehydroepiandrosterone Sulfate (DHEA-S) Measured on Treatment Day 1 (Baseline Study)46.07 ug/dLStandard Deviation 51.56
Primary

Dehydroepiandrosterone Sulfate (DHEA-S) Measured on Treatment Day 8 (Post Study)

Dehydroepiandrosterone sulfate (DHEA-S) was measured before and after the treatment week on study treatment days 1 and 8. DHEA-S was analyzed by immunoassay on a Siemens Immulite 2000. Normal ranges are 28-290 ug/dL.

Time frame: treatment day 8

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionDehydroepiandrosterone Sulfate (DHEA-S) Measured on Treatment Day 8 (Post Study)37.96 ug/dLStandard Deviation 25.25
Testosterone GelDehydroepiandrosterone Sulfate (DHEA-S) Measured on Treatment Day 8 (Post Study)35.54 ug/dLStandard Deviation 14.52
Medrol 6 Day Dose PackDehydroepiandrosterone Sulfate (DHEA-S) Measured on Treatment Day 8 (Post Study)34.74 ug/dLStandard Deviation 30.08
Testosterone Injection and Medrol 6 Day Dose PackDehydroepiandrosterone Sulfate (DHEA-S) Measured on Treatment Day 8 (Post Study)36.07 ug/dLStandard Deviation 35.77
Primary

Global Fatigue Score as Measured by Brief Fatigue Inventory (BFI) During the Treatment Week

The Brief Fatigue Inventory is a 9 item questionnaire that assesses perceptual fatigue as well as fatigue interferences (e.g. interference with enjoyment of life), with 0 being no fatigue and 10 being as bad as you can imagine. The Global Fatigue score is calculated by averaging the answers of all the questions. This data is presented as the treatment week average of study days 1-8.

Time frame: Study days 1-7 (treatment week)

Population: 1 subject did not complete the BFI during treatment week.

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionGlobal Fatigue Score as Measured by Brief Fatigue Inventory (BFI) During the Treatment Week1.84 units on a scaleStandard Deviation 0.3
Testosterone GelGlobal Fatigue Score as Measured by Brief Fatigue Inventory (BFI) During the Treatment Week1.79 units on a scaleStandard Deviation 0.16
Medrol 6 Day Dose PackGlobal Fatigue Score as Measured by Brief Fatigue Inventory (BFI) During the Treatment Week2.19 units on a scaleStandard Deviation 0.48
Testosterone Injection and Medrol 6 Day Dose PackGlobal Fatigue Score as Measured by Brief Fatigue Inventory (BFI) During the Treatment Week1.57 units on a scaleStandard Deviation 0.13
Primary

Global Fatigue Score as Measured by Brief Fatigue Inventory (BFI) in the Pre-treatment Week

The Brief Fatigue Inventory is a 9 item questionnaire that assesses perceptual fatigue as well as fatigue interferences (e.g. interference with enjoyment of life), with 0 being no fatigue and 10 being as bad as you can imagine. The Global Fatigue score is calculated by averaging the answers of all the questions. This data is presented as the pre-treatment week average of study days -7 to -1.

Time frame: Study days -7 to -1 (Pre - treatment)

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionGlobal Fatigue Score as Measured by Brief Fatigue Inventory (BFI) in the Pre-treatment Week2.25 units on a scaleStandard Deviation 0.41
Testosterone GelGlobal Fatigue Score as Measured by Brief Fatigue Inventory (BFI) in the Pre-treatment Week1.47 units on a scaleStandard Deviation 0.26
Medrol 6 Day Dose PackGlobal Fatigue Score as Measured by Brief Fatigue Inventory (BFI) in the Pre-treatment Week2.26 units on a scaleStandard Deviation 0.37
Testosterone Injection and Medrol 6 Day Dose PackGlobal Fatigue Score as Measured by Brief Fatigue Inventory (BFI) in the Pre-treatment Week1.86 units on a scaleStandard Deviation 0.22
Primary

Hematocrit Measured on Treatment Day 1 (Baseline Study)

Hematocrit was measured before and after treatment week (study treatment days 1 and 8). Hematocrit was analyzed by UTMB clinical laboratory. Normal ranges are 38.4% - 49.3%.

Time frame: treatment day 1

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionHematocrit Measured on Treatment Day 1 (Baseline Study)39.17 percentStandard Deviation 2.39
Testosterone GelHematocrit Measured on Treatment Day 1 (Baseline Study)38.4 percentStandard Deviation 3.71
Medrol 6 Day Dose PackHematocrit Measured on Treatment Day 1 (Baseline Study)40.45 percentStandard Deviation 2.92
Testosterone Injection and Medrol 6 Day Dose PackHematocrit Measured on Treatment Day 1 (Baseline Study)39.86 percentStandard Deviation 2.33
Primary

Hematocrit Measured on Treatment Day 8 (Post Study)

Hematocrit was measured before and after treatment week (study treatment days 1 and 8). Hematocrit was analyzed by UTMB clinical laboratory. Normal ranges are 38.4% - 49.3%.

Time frame: treatment day 8

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionHematocrit Measured on Treatment Day 8 (Post Study)38.74 percentStandard Deviation 2.15
Testosterone GelHematocrit Measured on Treatment Day 8 (Post Study)37.23 percentStandard Deviation 3.57
Medrol 6 Day Dose PackHematocrit Measured on Treatment Day 8 (Post Study)40.53 percentStandard Deviation 2.47
Testosterone Injection and Medrol 6 Day Dose PackHematocrit Measured on Treatment Day 8 (Post Study)39.24 percentStandard Deviation 2.72
Primary

High-Density Lipoproteins (HDL) Measured on Treatment Day 1 (Baseline Study)

High Density Lipoproteins (HDL) was measured before and after treatment week (study treatment days 1 and 8). HDL was analyzed by UTMB clinical laboratory. Normal ranges are higher than 35 mg/dL.

Time frame: treatment day 1

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionHigh-Density Lipoproteins (HDL) Measured on Treatment Day 1 (Baseline Study)40.29 mg/dLStandard Deviation 6.29
Testosterone GelHigh-Density Lipoproteins (HDL) Measured on Treatment Day 1 (Baseline Study)38.86 mg/dLStandard Deviation 13.47
Medrol 6 Day Dose PackHigh-Density Lipoproteins (HDL) Measured on Treatment Day 1 (Baseline Study)46.50 mg/dLStandard Deviation 8.94
Testosterone Injection and Medrol 6 Day Dose PackHigh-Density Lipoproteins (HDL) Measured on Treatment Day 1 (Baseline Study)42.14 mg/dLStandard Deviation 6.57
Primary

High-Density Lipoproteins (HDL) Measured on Treatment Day 8 (Post Study)

High Density Lipoproteins (HDL) was measured before and after treatment week (study treatment days 1 and 8). HDL was analyzed by UTMB clinical laboratory. Normal ranges are higher than 35 mg/dL.

Time frame: treatment day 8

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionHigh-Density Lipoproteins (HDL) Measured on Treatment Day 8 (Post Study)41.29 mg/dLStandard Deviation 9.6
Testosterone GelHigh-Density Lipoproteins (HDL) Measured on Treatment Day 8 (Post Study)36.71 mg/dLStandard Deviation 8.83
Medrol 6 Day Dose PackHigh-Density Lipoproteins (HDL) Measured on Treatment Day 8 (Post Study)47.67 mg/dLStandard Deviation 5.35
Testosterone Injection and Medrol 6 Day Dose PackHigh-Density Lipoproteins (HDL) Measured on Treatment Day 8 (Post Study)43.43 mg/dLStandard Deviation 6.24
Primary

Insulin Like Growth Factor 1 (IGF-1) Measured on Treatment Day 1 (Baseline Study)

Insulin like growth factor 1 (IGF-1) was measured before and after the treatment week on study treatment days 1 and 8. IGF-1 was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is 33-220 ng/mL.

Time frame: treatment day 1

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionInsulin Like Growth Factor 1 (IGF-1) Measured on Treatment Day 1 (Baseline Study)71.77 ng/mLStandard Deviation 33.99
Testosterone GelInsulin Like Growth Factor 1 (IGF-1) Measured on Treatment Day 1 (Baseline Study)69.2 ng/mLStandard Deviation 33
Medrol 6 Day Dose PackInsulin Like Growth Factor 1 (IGF-1) Measured on Treatment Day 1 (Baseline Study)61.42 ng/mLStandard Deviation 40.36
Testosterone Injection and Medrol 6 Day Dose PackInsulin Like Growth Factor 1 (IGF-1) Measured on Treatment Day 1 (Baseline Study)90.74 ng/mLStandard Deviation 65.38
Primary

Insulin Like Growth Factor 1 (IGF-1) Measured on Treatment Day 8 (Post Study)

Insulin like growth factor 1 (IGF-1) was measured before and after the treatment week on study treatment days 1 and 8. IGF-1 was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is 33-220 ng/mL.

Time frame: treatment day 8

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionInsulin Like Growth Factor 1 (IGF-1) Measured on Treatment Day 8 (Post Study)80.16 ng/mLStandard Deviation 39.07
Testosterone GelInsulin Like Growth Factor 1 (IGF-1) Measured on Treatment Day 8 (Post Study)72.11 ng/mLStandard Deviation 26.2
Medrol 6 Day Dose PackInsulin Like Growth Factor 1 (IGF-1) Measured on Treatment Day 8 (Post Study)69.17 ng/mLStandard Deviation 47.64
Testosterone Injection and Medrol 6 Day Dose PackInsulin Like Growth Factor 1 (IGF-1) Measured on Treatment Day 8 (Post Study)54.86 ng/mLStandard Deviation 47.34
Primary

Insulin Measured on Treatment Day 1 (Baseline Study)

Insulin was measured before and after the treatment week on study treatment days 1 and 8. Insulin was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is less than 25 uIu/mL.

Time frame: treatment day 1

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionInsulin Measured on Treatment Day 1 (Baseline Study)8.53 uIu/mLStandard Deviation 4.11
Testosterone GelInsulin Measured on Treatment Day 1 (Baseline Study)10.28 uIu/mLStandard Deviation 8.09
Medrol 6 Day Dose PackInsulin Measured on Treatment Day 1 (Baseline Study)4.09 uIu/mLStandard Deviation 2.08
Testosterone Injection and Medrol 6 Day Dose PackInsulin Measured on Treatment Day 1 (Baseline Study)9.89 uIu/mLStandard Deviation 10
Primary

Insulin Measured on Treatment Day 8 (Post Study)

Insulin was measured before and after the treatment week on study treatment days 1 and 8. Insulin was analyzed by immunoassay on a Siemens Immulite 2000. Normal range is less than 25 uIu/mL.

Time frame: treatment day 8

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionInsulin Measured on Treatment Day 8 (Post Study)7.47 uIu/mLStandard Deviation 3.9
Testosterone GelInsulin Measured on Treatment Day 8 (Post Study)10.58 uIu/mLStandard Deviation 7.13
Medrol 6 Day Dose PackInsulin Measured on Treatment Day 8 (Post Study)3.92 uIu/mLStandard Deviation 1.73
Testosterone Injection and Medrol 6 Day Dose PackInsulin Measured on Treatment Day 8 (Post Study)3.89 uIu/mLStandard Deviation 1.8
Primary

Low-Density Lipoproteins (LDL) Measured on Treatment Day 1 (Baseline Study)

Low Density Lipoproteins (LDL) was measured before and after treatment week (study treatment days 1 and 8). LDL was analyzed by UTMB clinical laboratory. Normal ranges are less than 160 mg/dL.

Time frame: treatment day 1

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionLow-Density Lipoproteins (LDL) Measured on Treatment Day 1 (Baseline Study)103.0 mg/dLStandard Deviation 27.76
Testosterone GelLow-Density Lipoproteins (LDL) Measured on Treatment Day 1 (Baseline Study)93.57 mg/dLStandard Deviation 36.47
Medrol 6 Day Dose PackLow-Density Lipoproteins (LDL) Measured on Treatment Day 1 (Baseline Study)96.83 mg/dLStandard Deviation 18.24
Testosterone Injection and Medrol 6 Day Dose PackLow-Density Lipoproteins (LDL) Measured on Treatment Day 1 (Baseline Study)90.71 mg/dLStandard Deviation 26.57
Primary

Low-Density Lipoproteins (LDL) Measured on Treatment Day 8 (Post Study)

Low Density Lipoproteins (LDL) was measured before and after treatment week (study treatment days 1 and 8). LDL was analyzed by UTMB clinical laboratory. Normal ranges are less than 160 mg/dL.

Time frame: treatment day 8

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionLow-Density Lipoproteins (LDL) Measured on Treatment Day 8 (Post Study)104.0 mg/dLStandard Deviation 43.64
Testosterone GelLow-Density Lipoproteins (LDL) Measured on Treatment Day 8 (Post Study)94.57 mg/dLStandard Deviation 40.61
Medrol 6 Day Dose PackLow-Density Lipoproteins (LDL) Measured on Treatment Day 8 (Post Study)87.5 mg/dLStandard Deviation 13.91
Testosterone Injection and Medrol 6 Day Dose PackLow-Density Lipoproteins (LDL) Measured on Treatment Day 8 (Post Study)75.14 mg/dLStandard Deviation 19.79
Primary

Prostate Specific Antigen (PSA) Measured on Treatment Day 1 (Baseline Study)

Prostate Specific Antigen (PSA) was measured before and after treatment week (study treatment days 1 and 8). PSA was analyzed by UTMB clinical laboratory. Normal ranges are less than 4.0 ng/mL.

Time frame: treatment day 1

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionProstate Specific Antigen (PSA) Measured on Treatment Day 1 (Baseline Study)1.92 ng/mLStandard Deviation 1.13
Testosterone GelProstate Specific Antigen (PSA) Measured on Treatment Day 1 (Baseline Study)2.33 ng/mLStandard Deviation 1.6
Medrol 6 Day Dose PackProstate Specific Antigen (PSA) Measured on Treatment Day 1 (Baseline Study)1.85 ng/mLStandard Deviation 1.02
Testosterone Injection and Medrol 6 Day Dose PackProstate Specific Antigen (PSA) Measured on Treatment Day 1 (Baseline Study)1.83 ng/mLStandard Deviation 1.25
Primary

Prostate Specific Antigen (PSA) Measured on Treatment Day 8 (Post Study)

Prostate Specific Antigen (PSA) was measured before and after treatment week (study treatment days 1 and 8). PSA was analyzed by UTMB clinical laboratory. Normal ranges are less than 4.0 ng/mL.

Time frame: treatment day 8

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionProstate Specific Antigen (PSA) Measured on Treatment Day 8 (Post Study)1.98 ng/mLStandard Deviation 1
Testosterone GelProstate Specific Antigen (PSA) Measured on Treatment Day 8 (Post Study)2.32 ng/mLStandard Deviation 1.64
Medrol 6 Day Dose PackProstate Specific Antigen (PSA) Measured on Treatment Day 8 (Post Study)1.78 ng/mLStandard Deviation 1.05
Testosterone Injection and Medrol 6 Day Dose PackProstate Specific Antigen (PSA) Measured on Treatment Day 8 (Post Study)2.07 ng/mLStandard Deviation 1.6
Primary

Serum Estradiol Measured on Treatment Day 1 (Baseline Study)

Estradiol was measured during the treatment week (treatment days 1 and 8). Serum estradiol was analyzed by UTMB clinical laboratory. Normal ranges are 20-47 pg/mL.

Time frame: treatment day 1

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionSerum Estradiol Measured on Treatment Day 1 (Baseline Study)22.86 pg/mLStandard Deviation 10.32
Testosterone GelSerum Estradiol Measured on Treatment Day 1 (Baseline Study)33.69 pg/mLStandard Deviation 17.04
Medrol 6 Day Dose PackSerum Estradiol Measured on Treatment Day 1 (Baseline Study)36.33 pg/mLStandard Deviation 12.12
Testosterone Injection and Medrol 6 Day Dose PackSerum Estradiol Measured on Treatment Day 1 (Baseline Study)34.71 pg/mLStandard Deviation 10.95
Primary

Serum Estradiol Measured on Treatment Day 8 (Post Study)

Estradiol was measured during the treatment week (treatment days 1 and 8). Serum estradiol was analyzed by UTMB clinical laboratory. Normal ranges are 20-47 pg/mL.

Time frame: treatment day 8

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionSerum Estradiol Measured on Treatment Day 8 (Post Study)48.29 pg/mLStandard Deviation 12.2
Testosterone GelSerum Estradiol Measured on Treatment Day 8 (Post Study)33.43 pg/mLStandard Deviation 19.48
Medrol 6 Day Dose PackSerum Estradiol Measured on Treatment Day 8 (Post Study)30.83 pg/mLStandard Deviation 7.05
Testosterone Injection and Medrol 6 Day Dose PackSerum Estradiol Measured on Treatment Day 8 (Post Study)47.14 pg/mLStandard Deviation 34.87
Primary

Serum Total Testosterone Measured Before Treatment on Treatment Day 1 (Baseline Study)

Testosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.

Time frame: treatment day 1

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionSerum Total Testosterone Measured Before Treatment on Treatment Day 1 (Baseline Study)307.57 ng/dLStandard Deviation 106.09
Testosterone GelSerum Total Testosterone Measured Before Treatment on Treatment Day 1 (Baseline Study)363.43 ng/dLStandard Deviation 95.76
Medrol 6 Day Dose PackSerum Total Testosterone Measured Before Treatment on Treatment Day 1 (Baseline Study)408.17 ng/dLStandard Deviation 200.61
Testosterone Injection and Medrol 6 Day Dose PackSerum Total Testosterone Measured Before Treatment on Treatment Day 1 (Baseline Study)318.68 ng/dLStandard Deviation 129.68
Primary

Serum Total Testosterone Measured on Treatment Day 2

Testosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.

Time frame: treatment day 2

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionSerum Total Testosterone Measured on Treatment Day 2980.86 ng/dLStandard Deviation 389.58
Testosterone GelSerum Total Testosterone Measured on Treatment Day 2526.71 ng/dLStandard Deviation 127.59
Medrol 6 Day Dose PackSerum Total Testosterone Measured on Treatment Day 2191.87 ng/dLStandard Deviation 90.35
Testosterone Injection and Medrol 6 Day Dose PackSerum Total Testosterone Measured on Treatment Day 2675.86 ng/dLStandard Deviation 316.83
Primary

Serum Total Testosterone Measured on Treatment Day 3

TTestosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.

Time frame: treatment day 3

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionSerum Total Testosterone Measured on Treatment Day 3828.71 ng/dLStandard Deviation 375.94
Testosterone GelSerum Total Testosterone Measured on Treatment Day 3527.43 ng/dLStandard Deviation 183.7
Medrol 6 Day Dose PackSerum Total Testosterone Measured on Treatment Day 3206.0 ng/dLStandard Deviation 89.35
Testosterone Injection and Medrol 6 Day Dose PackSerum Total Testosterone Measured on Treatment Day 3673.29 ng/dLStandard Deviation 299.3
Primary

Serum Total Testosterone Measured on Treatment Day 4

Testosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.

Time frame: treatment day 4

Population: One subject missed a testosterone monitoring visit for treatment day 4.

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionSerum Total Testosterone Measured on Treatment Day 4779.57 ng/dLStandard Deviation 399.73
Testosterone GelSerum Total Testosterone Measured on Treatment Day 4441.71 ng/dLStandard Deviation 146.99
Medrol 6 Day Dose PackSerum Total Testosterone Measured on Treatment Day 4271.6 ng/dLStandard Deviation 134.93
Testosterone Injection and Medrol 6 Day Dose PackSerum Total Testosterone Measured on Treatment Day 4734.57 ng/dLStandard Deviation 277.34
Primary

Serum Total Testosterone Measured on Treatment Day 5

TesTestosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.

Time frame: treatment day 5

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionSerum Total Testosterone Measured on Treatment Day 5722.0 ng/dLStandard Deviation 302.1
Testosterone GelSerum Total Testosterone Measured on Treatment Day 5460.14 ng/dLStandard Deviation 211.31
Medrol 6 Day Dose PackSerum Total Testosterone Measured on Treatment Day 5246.33 ng/dLStandard Deviation 131.3
Testosterone Injection and Medrol 6 Day Dose PackSerum Total Testosterone Measured on Treatment Day 5669.71 ng/dLStandard Deviation 291.02
Primary

Serum Total Testosterone Measured on Treatment Day 6

Testosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.

Time frame: treatment day 6

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionSerum Total Testosterone Measured on Treatment Day 6629.0 ng/dLStandard Deviation 272.56
Testosterone GelSerum Total Testosterone Measured on Treatment Day 6536.43 ng/dLStandard Deviation 269.53
Medrol 6 Day Dose PackSerum Total Testosterone Measured on Treatment Day 6284.5 ng/dLStandard Deviation 166
Testosterone Injection and Medrol 6 Day Dose PackSerum Total Testosterone Measured on Treatment Day 6645.14 ng/dLStandard Deviation 282.11
Primary

Serum Total Testosterone Measured on Treatment Day 7

Testosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.

Time frame: treatment day 7

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionSerum Total Testosterone Measured on Treatment Day 7578.29 ng/dLStandard Deviation 173.58
Testosterone GelSerum Total Testosterone Measured on Treatment Day 7485.86 ng/dLStandard Deviation 211.57
Medrol 6 Day Dose PackSerum Total Testosterone Measured on Treatment Day 7320.0 ng/dLStandard Deviation 113.06
Testosterone Injection and Medrol 6 Day Dose PackSerum Total Testosterone Measured on Treatment Day 7579.57 ng/dLStandard Deviation 170.04
Primary

Serum Total Testosterone Measured on Treatment Day 8 (Post Study)

Testosterone was measured daily during the treatment week (treatment days 1 through 8). Serum testosterone was analyzed by UTMB clinical laboratory. Normal ranges are 72-623 ng/dL. Baseline testosterone was drawn before testosterone administration.

Time frame: treatment day 8

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionSerum Total Testosterone Measured on Treatment Day 8 (Post Study)454.29 ng/dLStandard Deviation 57.12
Testosterone GelSerum Total Testosterone Measured on Treatment Day 8 (Post Study)435.14 ng/dLStandard Deviation 180.11
Medrol 6 Day Dose PackSerum Total Testosterone Measured on Treatment Day 8 (Post Study)340.17 ng/dLStandard Deviation 127.27
Testosterone Injection and Medrol 6 Day Dose PackSerum Total Testosterone Measured on Treatment Day 8 (Post Study)481.14 ng/dLStandard Deviation 141.08
Primary

Sex Hormone Binding Globulin (SHBG) Measured on Treatment Day 1 (Baseline Study)

Sex Hormone Binding Globulin (SHBG) was measured before and after the treatment week on study treatment days 1 and 8. SHBG was analyzed by immunoassay on a Siemens Immulite 2000. Normal ranges are 10-57 nmol/L.

Time frame: treatment day 1

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionSex Hormone Binding Globulin (SHBG) Measured on Treatment Day 1 (Baseline Study)21.78 nmol/LStandard Deviation 11.56
Testosterone GelSex Hormone Binding Globulin (SHBG) Measured on Treatment Day 1 (Baseline Study)19.86 nmol/LStandard Deviation 8.51
Medrol 6 Day Dose PackSex Hormone Binding Globulin (SHBG) Measured on Treatment Day 1 (Baseline Study)25.66 nmol/LStandard Deviation 12.85
Testosterone Injection and Medrol 6 Day Dose PackSex Hormone Binding Globulin (SHBG) Measured on Treatment Day 1 (Baseline Study)24.70 nmol/LStandard Deviation 9.63
Primary

Sex Hormone Binding Globulin (SHBG) Measured on Treatment Day 8 (Post Study)

Sex Hormone Binding Globulin (SHBG) was measured before and after the treatment week on study treatment days 1 and 8. SHBG was analyzed by immunoassay on a Siemens Immulite 2000. Normal ranges are 10-57 nmol/L.

Time frame: treatment day 8

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionSex Hormone Binding Globulin (SHBG) Measured on Treatment Day 8 (Post Study)17.62 nmol/LStandard Deviation 4.8
Testosterone GelSex Hormone Binding Globulin (SHBG) Measured on Treatment Day 8 (Post Study)20.13 nmol/LStandard Deviation 9.72
Medrol 6 Day Dose PackSex Hormone Binding Globulin (SHBG) Measured on Treatment Day 8 (Post Study)19.22 nmol/LStandard Deviation 11.71
Testosterone Injection and Medrol 6 Day Dose PackSex Hormone Binding Globulin (SHBG) Measured on Treatment Day 8 (Post Study)14.57 nmol/LStandard Deviation 6.88
Primary

Total Cholesterol Measured on Treatment Day 1 (Baseline Study)

Total Cholesterol was measured before and after treatment week (study treatment days 1 and 8). Total cholesterol was analyzed by UTMB clinical laboratory. Normal ranges are 120-200 mg/dL.

Time frame: treatment day 1

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionTotal Cholesterol Measured on Treatment Day 1 (Baseline Study)171.29 mg/dLStandard Deviation 35.72
Testosterone GelTotal Cholesterol Measured on Treatment Day 1 (Baseline Study)165.57 mg/dLStandard Deviation 34.89
Medrol 6 Day Dose PackTotal Cholesterol Measured on Treatment Day 1 (Baseline Study)168.00 mg/dLStandard Deviation 24.51
Testosterone Injection and Medrol 6 Day Dose PackTotal Cholesterol Measured on Treatment Day 1 (Baseline Study)156.71 mg/dLStandard Deviation 27.32
Primary

Total Cholesterol Measured on Treatment Day 8 (Post Study)

Total Cholesterol was measured before and after treatment week (study treatment days 1 and 8). Total cholesterol was analyzed by UTMB clinical laboratory. Normal ranges are 120-200 mg/dL.

Time frame: treatment day 8

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionTotal Cholesterol Measured on Treatment Day 8 (Post Study)172 mg/dLStandard Deviation 46.45
Testosterone GelTotal Cholesterol Measured on Treatment Day 8 (Post Study)162.86 mg/dLStandard Deviation 37.64
Medrol 6 Day Dose PackTotal Cholesterol Measured on Treatment Day 8 (Post Study)166.17 mg/dLStandard Deviation 23.57
Testosterone Injection and Medrol 6 Day Dose PackTotal Cholesterol Measured on Treatment Day 8 (Post Study)141.86 mg/dLStandard Deviation 21.64
Primary

Triglycerides Measured on Treatment Day 1 (Baseline Study)

Triglycerides were measured before and after treatment week (study treatment days 1 and 8). Total cholesterol was analyzed by UTMB clinical laboratory. Normal ranges are 30-170 mg/dL.

Time frame: treatment day 1

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionTriglycerides Measured on Treatment Day 1 (Baseline Study)140.42 mg/dLStandard Deviation 50.35
Testosterone GelTriglycerides Measured on Treatment Day 1 (Baseline Study)164.0 mg/dLStandard Deviation 44.45
Medrol 6 Day Dose PackTriglycerides Measured on Treatment Day 1 (Baseline Study)122.5 mg/dLStandard Deviation 74.89
Testosterone Injection and Medrol 6 Day Dose PackTriglycerides Measured on Treatment Day 1 (Baseline Study)119.71 mg/dLStandard Deviation 35.04
Primary

Triglycerides Measured on Treatment Day 8 (Post Study)

Triglycerides were measured before and after treatment week (study treatment days 1 and 8). Total cholesterol was analyzed by UTMB clinical laboratory. Normal ranges are 30-170 mg/dL.

Time frame: treatment day 8

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionTriglycerides Measured on Treatment Day 8 (Post Study)112.57 mg/dLStandard Deviation 49.9
Testosterone GelTriglycerides Measured on Treatment Day 8 (Post Study)160.0 mg/dLStandard Deviation 58.91
Medrol 6 Day Dose PackTriglycerides Measured on Treatment Day 8 (Post Study)155.17 mg/dLStandard Deviation 119.23
Testosterone Injection and Medrol 6 Day Dose PackTriglycerides Measured on Treatment Day 8 (Post Study)116.28 mg/dLStandard Deviation 22.94
Primary

Very Low-Density Lipoproteins (VLDL) Measured on Treatment Day 1 (Baseline Study)

Very Low Density Lipoproteins (VLDL) was measured before and after treatment week (study treatment days 1 and 8). VLDL was analyzed by UTMB clinical laboratory. Normal ranges are 5-60 mg/dL.

Time frame: treatment day 1

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionVery Low-Density Lipoproteins (VLDL) Measured on Treatment Day 1 (Baseline Study)28 mg/dLStandard Deviation 10.13
Testosterone GelVery Low-Density Lipoproteins (VLDL) Measured on Treatment Day 1 (Baseline Study)33.14 mg/dLStandard Deviation 8.51
Medrol 6 Day Dose PackVery Low-Density Lipoproteins (VLDL) Measured on Treatment Day 1 (Baseline Study)24.67 mg/dLStandard Deviation 14.99
Testosterone Injection and Medrol 6 Day Dose PackVery Low-Density Lipoproteins (VLDL) Measured on Treatment Day 1 (Baseline Study)23.86 mg/dLStandard Deviation 7.03
Primary

Very Low-Density Lipoproteins (VLDL) Measured on Treatment Day 8 (Post Study)

Very Low Density Lipoproteins (VLDL) was measured before and after treatment week (study treatment days 1 and 8). VLDL was analyzed by UTMB clinical laboratory. Normal ranges are 5-60 mg/dL.

Time frame: treatment day 8

ArmMeasureValue (MEAN)Dispersion
Testosterone InjectionVery Low-Density Lipoproteins (VLDL) Measured on Treatment Day 8 (Post Study)26.71 mg/dLStandard Deviation 8.5
Testosterone GelVery Low-Density Lipoproteins (VLDL) Measured on Treatment Day 8 (Post Study)29.29 mg/dLStandard Deviation 11.07
Medrol 6 Day Dose PackVery Low-Density Lipoproteins (VLDL) Measured on Treatment Day 8 (Post Study)31.0 mg/dLStandard Deviation 24.02
Testosterone Injection and Medrol 6 Day Dose PackVery Low-Density Lipoproteins (VLDL) Measured on Treatment Day 8 (Post Study)24.71 mg/dLStandard Deviation 6.07

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026