Trial Outcomes & Findings for Effects of Aromatase Inhibition Versus Testosterone in Older Men With Low Testosterone: Randomized-Controlled Trial. (NCT NCT00104572)

NCT ID: NCT00104572

Last Updated: 2018-11-06

Results Overview

bone mineral density lumbar spine for all arms testosterone gel, anastrozole and placebo

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

44 participants

Primary outcome timeframe

1 year

Results posted on

2018-11-06

Participant Flow

The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.

Participant milestones

Participant milestones
Measure
Transdermal Testosterone
13 participants will receive testosterone gel (5 gm) plus placebo tablet daily for 12 months Androgel (Testosterone Gel): 1 mg tablet for 12 months Placebo tablet: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Aromatase Inhibitor
13 participants will receive anastrozole 1 mg tablet plus placebo gel daily for 12 months Anastrozole (Aromatase Inhibitor) Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Placebo
9 participants will receive a placebo tablet and placebo gel daily for 12 months Placebo tablet: Daily for 12 months Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Overall Study
STARTED
13
13
9
Overall Study
COMPLETED
10
10
9
Overall Study
NOT COMPLETED
3
3
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Transdermal Testosterone
13 participants will receive testosterone gel (5 gm) plus placebo tablet daily for 12 months Androgel (Testosterone Gel): 1 mg tablet for 12 months Placebo tablet: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Aromatase Inhibitor
13 participants will receive anastrozole 1 mg tablet plus placebo gel daily for 12 months Anastrozole (Aromatase Inhibitor) Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Placebo
9 participants will receive a placebo tablet and placebo gel daily for 12 months Placebo tablet: Daily for 12 months Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Overall Study
Withdrawal by Subject
3
3
0

Baseline Characteristics

Effects of Aromatase Inhibition Versus Testosterone in Older Men With Low Testosterone: Randomized-Controlled Trial.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Transdermal Testosterone
n=13 Participants
participants will receive testosterone gel (5 gm) plus placebo tablet daily for 12 months Androgel (Testosterone Gel): 1 mg tablet for 12 months Placebo tablet: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Aromatase Inhibitor
n=13 Participants
participants will receive anastrozole 1 mg tablet plus placebo gel daily for 12 months Anastrozole (Aromatase Inhibitor) Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Placebo
n=9 Participants
participants will receive a placebo tablet and placebo gel daily for 12 months Placebo tablet: Daily for 12 months Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Total
n=35 Participants
Total of all reporting groups
Age, Continuous
72 years
STANDARD_DEVIATION 5.1 • n=5 Participants
70 years
STANDARD_DEVIATION 3.0 • n=7 Participants
72 years
STANDARD_DEVIATION 3.4 • n=5 Participants
71 years
STANDARD_DEVIATION 1.2 • n=4 Participants
Sex: Female, Male
Female
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Sex: Female, Male
Male
13 Participants
n=5 Participants
13 Participants
n=7 Participants
9 Participants
n=5 Participants
35 Participants
n=4 Participants
Region of Enrollment
United States
13 participants
n=5 Participants
13 participants
n=7 Participants
9 participants
n=5 Participants
35 participants
n=4 Participants
Systolic blood pressure
137.8 mmHg
STANDARD_DEVIATION 9.4 • n=5 Participants
134.5 mmHg
STANDARD_DEVIATION 14.5 • n=7 Participants
133.7 mmHg
STANDARD_DEVIATION 11.2 • n=5 Participants
135.3 mmHg
STANDARD_DEVIATION 2.2 • n=4 Participants
Diastolic blood pressure
73.3 mmHg
STANDARD_DEVIATION 5.3 • n=5 Participants
72.4 mmHg
STANDARD_DEVIATION 9.4 • n=7 Participants
73.1 mmHg
STANDARD_DEVIATION 10.4 • n=5 Participants
72.9 mmHg
STANDARD_DEVIATION 0.5 • n=4 Participants
Body mass index
30.1 kg/m2
STANDARD_DEVIATION 4.0 • n=5 Participants
27.8 kg/m2
STANDARD_DEVIATION 4.1 • n=7 Participants
27.6 kg/m2
STANDARD_DEVIATION 3.5 • n=5 Participants
28.5 kg/m2
STANDARD_DEVIATION 1.4 • n=4 Participants
Total Testosterone
300.1 ng/dL
STANDARD_DEVIATION 81.9 • n=5 Participants
271.6 ng/dL
STANDARD_DEVIATION 85.6 • n=7 Participants
303.8 ng/dL
STANDARD_DEVIATION 94.7 • n=5 Participants
291.8 ng/dL
STANDARD_DEVIATION 17.6 • n=4 Participants
Bioavailable Testosterone
114.4 ng/dL
STANDARD_DEVIATION 37.2 • n=5 Participants
114.8 ng/dL
STANDARD_DEVIATION 36.3 • n=7 Participants
91.2 ng/dL
STANDARD_DEVIATION 31.7 • n=5 Participants
106.8 ng/dL
STANDARD_DEVIATION 13.5 • n=4 Participants
Estradiol
2.0 ng/dL
STANDARD_DEVIATION 0.7 • n=5 Participants
1.5 ng/dL
STANDARD_DEVIATION 0.6 • n=7 Participants
1.6 ng/dL
STANDARD_DEVIATION 0.5 • n=5 Participants
1.700 ng/dL
STANDARD_DEVIATION 0.3 • n=4 Participants
Sex hormone-binding globulin
43.4 nmol/L
STANDARD_DEVIATION 22.2 • n=5 Participants
39.9 nmol/L
STANDARD_DEVIATION 19.4 • n=7 Participants
58.6 nmol/L
STANDARD_DEVIATION 21.3 • n=5 Participants
47.30 nmol/L
STANDARD_DEVIATION 10.0 • n=4 Participants
luteinizing hormone
11.4 mlU/ml
STANDARD_DEVIATION 8.2 • n=5 Participants
6.4 mlU/ml
STANDARD_DEVIATION 2.7 • n=7 Participants
12.2 mlU/ml
STANDARD_DEVIATION 10.1 • n=5 Participants
10.00 mlU/ml
STANDARD_DEVIATION 3.1 • n=4 Participants
follicle-stimulating hormone
8.0 mlU/ml
STANDARD_DEVIATION 6.4 • n=5 Participants
6.5 mlU/ml
STANDARD_DEVIATION 5.3 • n=7 Participants
8.2 mlU/ml
STANDARD_DEVIATION 10.9 • n=5 Participants
7.567 mlU/ml
STANDARD_DEVIATION 0.9 • n=4 Participants
Bone mineral density
1.4 g/cm2
STANDARD_DEVIATION 0.2 • n=5 Participants
1.3 g/cm2
STANDARD_DEVIATION 0.2 • n=7 Participants
1.2 g/cm2
STANDARD_DEVIATION 0.1 • n=5 Participants
1.3 g/cm2
STANDARD_DEVIATION 0.1 • n=4 Participants
lean body mass
56.0 kg
STANDARD_DEVIATION 12 • n=5 Participants
54.7 kg
STANDARD_DEVIATION 11.0 • n=7 Participants
56.0 kg
STANDARD_DEVIATION 7.2 • n=5 Participants
55.6 kg
STANDARD_DEVIATION 0.8 • n=4 Participants
Fat mass
31.6 kg
STANDARD_DEVIATION 10.4 • n=5 Participants
26.9 kg
STANDARD_DEVIATION 9.6 • n=7 Participants
28.5 kg
STANDARD_DEVIATION 7.6 • n=5 Participants
29.0 kg
STANDARD_DEVIATION 2.4 • n=4 Participants
hand grip
41.1 kg
STANDARD_DEVIATION 6.9 • n=5 Participants
39.2 kg
STANDARD_DEVIATION 9.9 • n=7 Participants
39.3 kg
STANDARD_DEVIATION 7.2 • n=5 Participants
39.9 kg
STANDARD_DEVIATION 1.1 • n=4 Participants
knee strength
133.8 Nm
STANDARD_DEVIATION 44.3 • n=5 Participants
138.7 Nm
STANDARD_DEVIATION 48.6 • n=7 Participants
155.4 Nm
STANDARD_DEVIATION 41.9 • n=5 Participants
142.6 Nm
STANDARD_DEVIATION 11.3 • n=4 Participants

PRIMARY outcome

Timeframe: 1 year

bone mineral density lumbar spine for all arms testosterone gel, anastrozole and placebo

Outcome measures

Outcome measures
Measure
Transdermal Testosterone
n=13 Participants
participants will receive testosterone gel (5 gm) plus placebo tablet daily for 12 months Androgel (Testosterone Gel): 1 mg tablet for 12 months Placebo tablet: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Aromatase Inhibitor
n=13 Participants
participants will receive anastrozole 1 mg tablet plus placebo gel daily for 12 months Anastrozole (Aromatase Inhibitor) Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Placebo
n=9 Participants
participants will receive a placebo tablet and placebo gel daily for 12 months Placebo tablet: Daily for 12 months Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Effect of Testosterone Gel vs. Anastrozole on Bone Mineral Density
0.042 g/cm2
Standard Deviation 0.008
0.008 g/cm2
Standard Deviation 0.012
0.047 g/cm2
Standard Deviation 0.013

SECONDARY outcome

Timeframe: 1 year

Overnight Growth hormone measures (total hormone secretion) for groups testosterone gel, anastrozole and placebo

Outcome measures

Outcome measures
Measure
Transdermal Testosterone
n=13 Participants
participants will receive testosterone gel (5 gm) plus placebo tablet daily for 12 months Androgel (Testosterone Gel): 1 mg tablet for 12 months Placebo tablet: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Aromatase Inhibitor
n=13 Participants
participants will receive anastrozole 1 mg tablet plus placebo gel daily for 12 months Anastrozole (Aromatase Inhibitor) Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Placebo
n=9 Participants
participants will receive a placebo tablet and placebo gel daily for 12 months Placebo tablet: Daily for 12 months Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Effect of Testosterone Gel vs. Anastrozole on Pulsatile Growth Hormone Release
5.8 ng/ml/8h
Standard Error 1.4
10 ng/ml/8h
Standard Error 2.2
7.7 ng/ml/8h
Standard Error 2.2

SECONDARY outcome

Timeframe: 1 year

Primary outcome HOMA-IR for all groups testosterone gel, anastrozole and placebo Insulin resistance measure by HOMA-IR is a score if a person is insulin resistance the score should be between minimum 0.7- maximum 2 or more. Absolute changes in HOMAIR in all treatment arms, calculation time frame 1 year minus baseline point.

Outcome measures

Outcome measures
Measure
Transdermal Testosterone
n=10 Participants
participants will receive testosterone gel (5 gm) plus placebo tablet daily for 12 months Androgel (Testosterone Gel): 1 mg tablet for 12 months Placebo tablet: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Aromatase Inhibitor
n=10 Participants
participants will receive anastrozole 1 mg tablet plus placebo gel daily for 12 months Anastrozole (Aromatase Inhibitor) Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Placebo
n=9 Participants
participants will receive a placebo tablet and placebo gel daily for 12 months Placebo tablet: Daily for 12 months Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Effect of Testosterone Gel vs. Anastrozole on Glucose Tolerance/Lipid Metabolism
-0.05 score on a scale
Standard Error 0.21
0.15 score on a scale
Standard Error 0.10
-0.11 score on a scale
Standard Error 0.26

SECONDARY outcome

Timeframe: 1 year

rectal ultrasound prostate volume for all groups testosterone gel, anastrozole and placebo. Absolute changes in prostate volume in all treatment arms, calculation time frame 1 year minus baseline point.

Outcome measures

Outcome measures
Measure
Transdermal Testosterone
n=10 Participants
participants will receive testosterone gel (5 gm) plus placebo tablet daily for 12 months Androgel (Testosterone Gel): 1 mg tablet for 12 months Placebo tablet: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Aromatase Inhibitor
n=10 Participants
participants will receive anastrozole 1 mg tablet plus placebo gel daily for 12 months Anastrozole (Aromatase Inhibitor) Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Placebo
n=9 Participants
participants will receive a placebo tablet and placebo gel daily for 12 months Placebo tablet: Daily for 12 months Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Effect of Testosterone Gel vs. Anastrozole on Prostate Volume/Prostate Specific Antigen Levels/Urinary Function
4.5 cc
Standard Error 1.76
-1.66 cc
Standard Error 3.54
-1.05 cc
Standard Error 1.52

Adverse Events

Transdermal Testosterone

Serious events: 3 serious events
Other events: 0 other events
Deaths: 0 deaths

Aromatase Inhibitor

Serious events: 6 serious events
Other events: 0 other events
Deaths: 0 deaths

Placebo

Serious events: 3 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Transdermal Testosterone
n=17 participants at risk
participants will receive testosterone gel (5 gm) plus placebo tablet daily for 12 months Androgel (Testosterone Gel): 1 mg tablet for 12 months Placebo tablet: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Aromatase Inhibitor
n=14 participants at risk
participants will receive anastrozole 1 mg tablet plus placebo gel daily for 12 months Anastrozole (Aromatase Inhibitor) Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Placebo
n=13 participants at risk
participants will receive a placebo tablet and placebo gel daily for 12 months Placebo tablet: Daily for 12 months Placebo gel: Daily for 12 months Calcium Cardone 500mg with vitamin D 400 IU: 1 tablet three times a day
Musculoskeletal and connective tissue disorders
muscle ache
0.00%
0/17
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
7.1%
1/14 • Number of events 1
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
0.00%
0/13
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
Renal and urinary disorders
bladder mass
0.00%
0/17
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
0.00%
0/14
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
7.7%
1/13 • Number of events 1
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
Blood and lymphatic system disorders
subdural hematoma
0.00%
0/17
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
0.00%
0/14
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
7.7%
1/13 • Number of events 1
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
Vascular disorders
stent placement
0.00%
0/17
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
0.00%
0/14
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
7.7%
1/13 • Number of events 1
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
Respiratory, thoracic and mediastinal disorders
Dyspnea on exertion
5.9%
1/17 • Number of events 1
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
0.00%
0/14
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
0.00%
0/13
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
Blood and lymphatic system disorders
mildly elevated HCT
5.9%
1/17 • Number of events 1
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
0.00%
0/14
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
0.00%
0/13
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
Reproductive system and breast disorders
elevated PSA
0.00%
0/17
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
7.1%
1/14 • Number of events 1
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
0.00%
0/13
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
Cardiac disorders
increased heart rate palpitations
0.00%
0/17
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
7.1%
1/14 • Number of events 1
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
0.00%
0/13
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
General disorders
dizziness/diarrhea
0.00%
0/17
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
7.1%
1/14 • Number of events 1
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
0.00%
0/13
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
Reproductive system and breast disorders
blood in semen
0.00%
0/17
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
7.1%
1/14 • Number of events 1
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.
0.00%
0/13
The study randomized 44 subjects, however 9 of them stop the study before having the second visit completed, so we started the analysis with 35 subjects. The participant flow module has 35 subjects, because these subjects have a baseline and 3 months endpoints.

Other adverse events

Adverse event data not reported

Additional Information

Josephine M. Egan,MD, clinical director NIA

NIA

Phone: 410-558-8414

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place