Trial Outcomes & Findings for Transgender Estradiol Affirming Therapy (NCT NCT05010707)

NCT ID: NCT05010707

Last Updated: 2024-11-26

Results Overview

Degree of testosterone suppression by measuring total testosterone level in transgender female patients undergoing hormonal affirming therapy, clinical testosterone level in pg/mL

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

39 participants

Primary outcome timeframe

Change from baseline total testosterone level at 1 and 6 months

Results posted on

2024-11-26

Participant Flow

Participant milestones

Participant milestones
Measure
Transdermal Estradiol Plus Spironolactone
Starting dose will be 100 mcg/24hrs Plan to increase by 100 mcg/24hrs every month to a max dose of 400 mcg/24hrs Goal is to achieve a serum estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels All patients will also receive spironolactone. Spironolactone will be started at 50 mg daily and will increase to standard dose. Transdermal patch: Participants will be prescribed the medication and dosed based on their hormonal profile. Goal is achieve estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels Pro-thrombotic markers: Once participants are started on gender affirming hormone therapy, pro-thombotic markers will be checked at baseline and every 6 months. Pro-thrombotic markers will include: Factor II, Factor IX, Factor XI, Von Willebrand factor, Protein C, Protein S, activated Protein C resistance. Metabolic markers: Once participants are started on gender affirming hormone therapy, metabolic markers will be checked at baseline and every 6 months. Markers will include: Insulin level, fasting glucose, body mass index, waist circumference. Hormone Profile: Once participants are started on gender affirming hormone therapy, hormonal levels will be checked every 4 weeks until estradiol and testosterone levels are within goal as established by standard of care.
Daily Sublingual Estradiol Plus Spironolactone
Starting dose will be 2 mg daily Plan to increase every month by 2 mg daily Goal is to achieve serum estradiol level between 100-200 pg/mL mL and to suppress testosterone to cisgender female levels. All patients will also receive spironolactone. Spironolactone will be started at 50 mg daily and will increase to standard dose. Spironolactone will be started at 50 mg daily and will increase to standard dose. Pro-thrombotic markers: Once participants are started on gender affirming hormone therapy, pro-thombotic markers will be checked at baseline and every 6 months. Pro-thrombotic markers will include: Factor II, Factor IX, Factor XI, Von Willebrand factor, Protein C, Protein S, activated Protein C resistance. Metabolic markers: Once participants are started on gender affirming hormone therapy, metabolic markers will be checked at baseline and every 6 months. Markers will include: Insulin level, fasting glucose, body mass index, waist circumference. Hormone Profile: Once participants are started on gender affirming hormone therapy, hormonal levels will be checked every 4 weeks until estradiol and testosterone levels are within goal as established by standard of care. Daily Sublingual Tablet: Participants will be prescribed the medication and dosed based on their hormonal profile. Participants will take dose as once daily medication. Goal is achieve estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels.
Twice Daily Sublingual Estradiol Plus Spironolactone
Starting dose will be 1 mg twice daily Plan to increase every month by 2 mg daily divided BID Goal is to achieve serum estradiol level between 100-200 pg/mL mL and to suppress testosterone to cisgender female levels All patients will also receive spironolactone. Spironolactone will be started at 50 mg daily and will increase to standard dose. Spironolactone will be started at 50 mg daily and will increase to standard dose. Pro-thrombotic markers: Once participants are started on gender affirming hormone therapy, pro-thombotic markers will be checked at baseline and every 6 months. Pro-thrombotic markers will include: Factor II, Factor IX, Factor XI, Von Willebrand factor, Protein C, Protein S, activated Protein C resistance. Metabolic markers: Once participants are started on gender affirming hormone therapy, metabolic markers will be checked at baseline and every 6 months. Markers will include: Insulin level, fasting glucose, body mass index, waist circumference. Hormone Profile: Once participants are started on gender affirming hormone therapy, hormonal levels will be checked every 4 weeks until estradiol and testosterone levels are within goal as established by standard of care. BID Sublingual Tablet: Participants will be prescribed the medication and dosed based on their hormonal profile. Participants will take dose as twice daily medication. Goal is achieve estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels.
Overall Study
STARTED
12
13
14
Overall Study
COMPLETED
11
12
14
Overall Study
NOT COMPLETED
1
1
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Transgender Estradiol Affirming Therapy

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Transdermal Estradiol Plus Spironolactone
n=12 Participants
Starting dose will be 100 mcg/24hrs Plan to increase by 100 mcg/24hrs every month to a max dose of 400 mcg/24hrs Goal is to achieve a serum estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels All patients will also receive spironolactone. Spironolactone will be started at 50 mg daily and will increase to standard dose. Transdermal patch: Participants will be prescribed the medication and dosed based on their hormonal profile. Goal is achieve estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels Pro-thrombotic markers: Once participants are started on gender affirming hormone therapy, pro-thombotic markers will be checked at baseline and every 6 months. Pro-thrombotic markers will include: Factor II, Factor IX, Factor XI, Von Willebrand factor, Protein C, Protein S, activated Protein C resistance. Metabolic markers: Once participants are started on gender affirming hormone therapy, metabolic markers will be checked at baseline and every 6 months. Markers will include: Insulin level, fasting glucose, body mass index, waist circumference. Hormone Profile: Once participants are started on gender affirming hormone therapy, hormonal levels will be checked every 4 weeks until estradiol and testosterone levels are within goal as established by standard of care.
Daily Sublingual Estradiol Plus Spironolactone
n=13 Participants
Starting dose will be 2 mg daily Plan to increase every month by 2 mg daily Goal is to achieve serum estradiol level between 100-200 pg/mL mL and to suppress testosterone to cisgender female levels. All patients will also receive spironolactone. Spironolactone will be started at 50 mg daily and will increase to standard dose. Spironolactone will be started at 50 mg daily and will increase to standard dose. Pro-thrombotic markers: Once participants are started on gender affirming hormone therapy, pro-thombotic markers will be checked at baseline and every 6 months. Pro-thrombotic markers will include: Factor II, Factor IX, Factor XI, Von Willebrand factor, Protein C, Protein S, activated Protein C resistance. Metabolic markers: Once participants are started on gender affirming hormone therapy, metabolic markers will be checked at baseline and every 6 months. Markers will include: Insulin level, fasting glucose, body mass index, waist circumference. Hormone Profile: Once participants are started on gender affirming hormone therapy, hormonal levels will be checked every 4 weeks until estradiol and testosterone levels are within goal as established by standard of care. Daily Sublingual Tablet: Participants will be prescribed the medication and dosed based on their hormonal profile. Participants will take dose as once daily medication. Goal is achieve estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels.
Twice Daily Sublingual Estradiol Plus Spironolactone
n=14 Participants
Starting dose will be 1 mg twice daily Plan to increase every month by 2 mg daily divided BID Goal is to achieve serum estradiol level between 100-200 pg/mL mL and to suppress testosterone to cisgender female levels All patients will also receive spironolactone. Spironolactone will be started at 50 mg daily and will increase to standard dose. Spironolactone will be started at 50 mg daily and will increase to standard dose. Pro-thrombotic markers: Once participants are started on gender affirming hormone therapy, pro-thombotic markers will be checked at baseline and every 6 months. Pro-thrombotic markers will include: Factor II, Factor IX, Factor XI, Von Willebrand factor, Protein C, Protein S, activated Protein C resistance. Metabolic markers: Once participants are started on gender affirming hormone therapy, metabolic markers will be checked at baseline and every 6 months. Markers will include: Insulin level, fasting glucose, body mass index, waist circumference. Hormone Profile: Once participants are started on gender affirming hormone therapy, hormonal levels will be checked every 4 weeks until estradiol and testosterone levels are within goal as established by standard of care. BID Sublingual Tablet: Participants will be prescribed the medication and dosed based on their hormonal profile. Participants will take dose as twice daily medication. Goal is achieve estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels.
Total
n=39 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Age, Categorical
Between 18 and 65 years
12 Participants
n=5 Participants
13 Participants
n=7 Participants
14 Participants
n=5 Participants
39 Participants
n=4 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Age, Continuous
25.3 years
n=5 Participants
25.0 years
n=7 Participants
21.5 years
n=5 Participants
25.3 years
n=4 Participants
Sex: Female, Male
Female
12 Participants
n=5 Participants
13 Participants
n=7 Participants
14 Participants
n=5 Participants
39 Participants
n=4 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Asian
2 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
2 Participants
n=4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
3 Participants
n=4 Participants
Race (NIH/OMB)
White
9 Participants
n=5 Participants
12 Participants
n=7 Participants
11 Participants
n=5 Participants
32 Participants
n=4 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
2 Participants
n=4 Participants
Region of Enrollment
United States
12 Participants
n=5 Participants
13 Participants
n=7 Participants
14 Participants
n=5 Participants
39 Participants
n=4 Participants
Weight
75.6 Kg
STANDARD_DEVIATION 17.2 • n=5 Participants
82.1 Kg
STANDARD_DEVIATION 20.9 • n=7 Participants
74.0 Kg
STANDARD_DEVIATION 13.0 • n=5 Participants
77.3 Kg
STANDARD_DEVIATION 17.2 • n=4 Participants
BMI
25.2 kg/m^2
STANDARD_DEVIATION 5.9 • n=5 Participants
26.2 kg/m^2
STANDARD_DEVIATION 7.2 • n=7 Participants
23.9 kg/m^2
STANDARD_DEVIATION 5.0 • n=5 Participants
25.1 kg/m^2
STANDARD_DEVIATION 6.0 • n=4 Participants
Systolic blood pressure
132.8 mmHg
STANDARD_DEVIATION 12.6 • n=5 Participants
140.8 mmHg
STANDARD_DEVIATION 21.7 • n=7 Participants
128.3 mmHg
STANDARD_DEVIATION 16.9 • n=5 Participants
134.0 mmHg
STANDARD_DEVIATION 18.0 • n=4 Participants
Diastolic blood pressure
87.9 mmHg
STANDARD_DEVIATION 6.7 • n=5 Participants
87.5 mmHg
STANDARD_DEVIATION 9.7 • n=7 Participants
82.1 mmHg
STANDARD_DEVIATION 10.4 • n=5 Participants
86.0 mmHg
STANDARD_DEVIATION 9.0 • n=4 Participants
Height
173.5 cm
STANDARD_DEVIATION 6.5 • n=5 Participants
177.6 cm
STANDARD_DEVIATION 9.9 • n=7 Participants
176.9 cm
STANDARD_DEVIATION 8.4 • n=5 Participants
175.9 cm
STANDARD_DEVIATION 8.4 • n=4 Participants
Waist circumference
34.8 inch
STANDARD_DEVIATION 7.0 • n=5 Participants
36 inch
STANDARD_DEVIATION 7.2 • n=7 Participants
33.9 inch
STANDARD_DEVIATION 5.2 • n=5 Participants
34.9 inch
STANDARD_DEVIATION 6.3 • n=4 Participants
Lifestyle
Alcohol use
1 participants
n=5 Participants
3 participants
n=7 Participants
1 participants
n=5 Participants
5 participants
n=4 Participants
Lifestyle
Vaping
0 participants
n=5 Participants
0 participants
n=7 Participants
2 participants
n=5 Participants
2 participants
n=4 Participants
Estradiol
27.1 pg/mL
STANDARD_DEVIATION 15.5 • n=5 Participants
25.8 pg/mL
STANDARD_DEVIATION 10.8 • n=7 Participants
23.4 pg/mL
STANDARD_DEVIATION 13.5 • n=5 Participants
25.3 pg/mL
STANDARD_DEVIATION 13.0 • n=4 Participants
Estrone
37.2 pg/mL
STANDARD_DEVIATION 20.7 • n=5 Participants
27.7 pg/mL
STANDARD_DEVIATION 20.9 • n=7 Participants
26.7 pg/mL
STANDARD_DEVIATION 14.0 • n=5 Participants
30.2 pg/mL
STANDARD_DEVIATION 18.7 • n=4 Participants
Total testosterone
498.1 ng/dL
STANDARD_DEVIATION 160.6 • n=5 Participants
481.3 ng/dL
STANDARD_DEVIATION 230.2 • n=7 Participants
505.3 ng/dL
STANDARD_DEVIATION 206.5 • n=5 Participants
495.0 ng/dL
STANDARD_DEVIATION 198.1 • n=4 Participants
Sodium
140.3 mmol/L
STANDARD_DEVIATION 2.1 • n=5 Participants
140.4 mmol/L
STANDARD_DEVIATION 1.4 • n=7 Participants
139.1 mmol/L
STANDARD_DEVIATION 1.6 • n=5 Participants
139.9 mmol/L
STANDARD_DEVIATION 1.8 • n=4 Participants
Potassium
4.0 mmol/L
STANDARD_DEVIATION 0.4 • n=5 Participants
4.0 mmol/L
STANDARD_DEVIATION 0.3 • n=7 Participants
4.2 mmol/L
STANDARD_DEVIATION 0.5 • n=5 Participants
4.1 mmol/L
STANDARD_DEVIATION 0.4 • n=4 Participants
Chloride
103.0 mmol/L
STANDARD_DEVIATION 1.9 • n=5 Participants
102.9 mmol/L
STANDARD_DEVIATION 2.4 • n=7 Participants
101.6 mmol/L
STANDARD_DEVIATION 2.0 • n=5 Participants
102.4 mmol/L
STANDARD_DEVIATION 2.2 • n=4 Participants
Bicarbonate
24.2 mmol/L
STANDARD_DEVIATION 3.1 • n=5 Participants
26.0 mmol/L
STANDARD_DEVIATION 2.9 • n=7 Participants
25.1 mmol/L
STANDARD_DEVIATION 3.5 • n=5 Participants
25.1 mmol/L
STANDARD_DEVIATION 3.2 • n=4 Participants
Blood urea nitrogen
14.3 mg/dL
STANDARD_DEVIATION 3.7 • n=5 Participants
12.5 mg/dL
STANDARD_DEVIATION 3.2 • n=7 Participants
14.1 mg/dL
STANDARD_DEVIATION 5.5 • n=5 Participants
13.6 mg/dL
STANDARD_DEVIATION 4.3 • n=4 Participants
Creatinine
1.0 mg/dL
STANDARD_DEVIATION 0.2 • n=5 Participants
0.9 mg/dL
STANDARD_DEVIATION 0.1 • n=7 Participants
0.9 mg/dL
STANDARD_DEVIATION 0.2 • n=5 Participants
0.9 mg/dL
STANDARD_DEVIATION 0.2 • n=4 Participants
Calcium
9.7 mg/dL
STANDARD_DEVIATION 0.3 • n=5 Participants
9.6 mg/dL
STANDARD_DEVIATION 0.3 • n=7 Participants
9.8 mg/dL
STANDARD_DEVIATION 0.3 • n=5 Participants
9.7 mg/dL
STANDARD_DEVIATION 0.3 • n=4 Participants
Total bilirubin
0.5 mg/dL
STANDARD_DEVIATION 0.3 • n=5 Participants
0.5 mg/dL
STANDARD_DEVIATION 0.2 • n=7 Participants
0.5 mg/dL
STANDARD_DEVIATION 0.3 • n=5 Participants
0.5 mg/dL
STANDARD_DEVIATION 0.3 • n=4 Participants
Plasma protein
7.8 g/dL
STANDARD_DEVIATION 0.3 • n=5 Participants
7.7 g/dL
STANDARD_DEVIATION 0.4 • n=7 Participants
7.8 g/dL
STANDARD_DEVIATION 0.7 • n=5 Participants
7.7 g/dL
STANDARD_DEVIATION 0.5 • n=4 Participants
Albumin
4.9 g/dL
STANDARD_DEVIATION 0.3 • n=5 Participants
4.9 g/dL
STANDARD_DEVIATION 0.3 • n=7 Participants
4.9 g/dL
STANDARD_DEVIATION 0.3 • n=5 Participants
4.9 g/dL
STANDARD_DEVIATION 0.3 • n=4 Participants
Alkaline phosphatase
82.3 U/L
STANDARD_DEVIATION 22.1 • n=5 Participants
75.9 U/L
STANDARD_DEVIATION 24.0 • n=7 Participants
77.6 U/L
STANDARD_DEVIATION 17.0 • n=5 Participants
78.4 U/L
STANDARD_DEVIATION 20.6 • n=4 Participants
AST
25.2 U/L
STANDARD_DEVIATION 6.0 • n=5 Participants
23.0 U/L
STANDARD_DEVIATION 6.4 • n=7 Participants
22.2 U/L
STANDARD_DEVIATION 6.6 • n=5 Participants
23.3 U/L
STANDARD_DEVIATION 6.3 • n=4 Participants
ALT
30.3 U/L
STANDARD_DEVIATION 16.2 • n=5 Participants
23.2 U/L
STANDARD_DEVIATION 9.7 • n=7 Participants
24.1 U/L
STANDARD_DEVIATION 14.8 • n=5 Participants
25.6 U/L
STANDARD_DEVIATION 13.7 • n=4 Participants

PRIMARY outcome

Timeframe: Change from baseline total testosterone level at 1 and 6 months

Population: Baseline Measures

Degree of testosterone suppression by measuring total testosterone level in transgender female patients undergoing hormonal affirming therapy, clinical testosterone level in pg/mL

Outcome measures

Outcome measures
Measure
Transdermal Estradiol Plus Spironolactone
n=11 Participants
Starting dose will be 100 mcg/24hrs Plan to increase by 100 mcg/24hrs every month to a max dose of 400 mcg/24hrs Goal is to achieve a serum estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels All patients will also receive spironolactone. Spironolactone will be started at 50 mg daily and will increase to standard dose. Transdermal patch: Participants will be prescribed the medication and dosed based on their hormonal profile. Goal is achieve estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels Pro-thrombotic markers: Once participants are started on gender affirming hormone therapy, pro-thombotic markers will be checked at baseline and every 6 months. Pro-thrombotic markers will include: Factor II, Factor IX, Factor XI, Von Willebrand factor, Protein C, Protein S, activated Protein C resistance. Metabolic markers: Once participants are started on gender affirming hormone therapy, metabolic markers will be checked at baseline and every 6 months. Markers will include: Insulin level, fasting glucose, body mass index, waist circumference. Hormone Profile: Once participants are started on gender affirming hormone therapy, hormonal levels will be checked every 4 weeks until estradiol and testosterone levels are within goal as established by standard of care.
Daily Sublingual Estradiol Plus Spironolactone
n=13 Participants
Starting dose will be 2 mg daily Plan to increase every month by 2 mg daily Goal is to achieve serum estradiol level between 100-200 pg/mL mL and to suppress testosterone to cisgender female levels. All patients will also receive spironolactone. Spironolactone will be started at 50 mg daily and will increase to standard dose. Spironolactone will be started at 50 mg daily and will increase to standard dose. Pro-thrombotic markers: Once participants are started on gender affirming hormone therapy, pro-thombotic markers will be checked at baseline and every 6 months. Pro-thrombotic markers will include: Factor II, Factor IX, Factor XI, Von Willebrand factor, Protein C, Protein S, activated Protein C resistance. Metabolic markers: Once participants are started on gender affirming hormone therapy, metabolic markers will be checked at baseline and every 6 months. Markers will include: Insulin level, fasting glucose, body mass index, waist circumference. Hormone Profile: Once participants are started on gender affirming hormone therapy, hormonal levels will be checked every 4 weeks until estradiol and testosterone levels are within goal as established by standard of care. Daily Sublingual Tablet: Participants will be prescribed the medication and dosed based on their hormonal profile. Participants will take dose as once daily medication. Goal is achieve estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels
Twice Daily Sublingual Estradiol Plus Spironolactone
n=14 Participants
Starting dose will be 1 mg twice daily Plan to increase every month by 2 mg daily divided BID Goal is to achieve serum estradiol level between 100-200 pg/mL mL and to suppress testosterone to cisgender female levels All patients will also receive spironolactone. Spironolactone will be started at 50 mg daily and will increase to standard dose. Spironolactone will be started at 50 mg daily and will increase to standard dose. Pro-thrombotic markers: Once participants are started on gender affirming hormone therapy, pro-thombotic markers will be checked at baseline and every 6 months. Pro-thrombotic markers will include: Factor II, Factor IX, Factor XI, Von Willebrand factor, Protein C, Protein S, activated Protein C resistance. Metabolic markers: Once participants are started on gender affirming hormone therapy, metabolic markers will be checked at baseline and every 6 months. Markers will include: Insulin level, fasting glucose, body mass index, waist circumference. Hormone Profile: Once participants are started on gender affirming hormone therapy, hormonal levels will be checked every 4 weeks until estradiol and testosterone levels are within goal as established by standard of care. BID Sublingual Tablet: Participants will be prescribed the medication and dosed based on their hormonal profile. Participants will take dose as twice daily medication. Goal is achieve estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels
Total Testosterone Level in Transgender Female Patients
Baseline
498.6 pg/mL
Standard Error 46.2
481.3 pg/mL
Standard Error 61.3
505.3 pg/mL
Standard Error 53.2
Total Testosterone Level in Transgender Female Patients
1 Month
62.7 pg/mL
Standard Error 13.7
278.5 pg/mL
Standard Error 54.8
313.8 pg/mL
Standard Error 69.7
Total Testosterone Level in Transgender Female Patients
6 Month
29.4 pg/mL
Standard Error 7.4
108.1 pg/mL
Standard Error 46.5
124.7 pg/mL
Standard Error 72.5

PRIMARY outcome

Timeframe: Change from baseline estradiol level at 1 and 6 months

Degree of testosterone suppression by measuring estradiol level in transgender female patients affirming hormone therapy

Outcome measures

Outcome measures
Measure
Transdermal Estradiol Plus Spironolactone
n=11 Participants
Starting dose will be 100 mcg/24hrs Plan to increase by 100 mcg/24hrs every month to a max dose of 400 mcg/24hrs Goal is to achieve a serum estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels All patients will also receive spironolactone. Spironolactone will be started at 50 mg daily and will increase to standard dose. Transdermal patch: Participants will be prescribed the medication and dosed based on their hormonal profile. Goal is achieve estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels Pro-thrombotic markers: Once participants are started on gender affirming hormone therapy, pro-thombotic markers will be checked at baseline and every 6 months. Pro-thrombotic markers will include: Factor II, Factor IX, Factor XI, Von Willebrand factor, Protein C, Protein S, activated Protein C resistance. Metabolic markers: Once participants are started on gender affirming hormone therapy, metabolic markers will be checked at baseline and every 6 months. Markers will include: Insulin level, fasting glucose, body mass index, waist circumference. Hormone Profile: Once participants are started on gender affirming hormone therapy, hormonal levels will be checked every 4 weeks until estradiol and testosterone levels are within goal as established by standard of care.
Daily Sublingual Estradiol Plus Spironolactone
n=13 Participants
Starting dose will be 2 mg daily Plan to increase every month by 2 mg daily Goal is to achieve serum estradiol level between 100-200 pg/mL mL and to suppress testosterone to cisgender female levels. All patients will also receive spironolactone. Spironolactone will be started at 50 mg daily and will increase to standard dose. Spironolactone will be started at 50 mg daily and will increase to standard dose. Pro-thrombotic markers: Once participants are started on gender affirming hormone therapy, pro-thombotic markers will be checked at baseline and every 6 months. Pro-thrombotic markers will include: Factor II, Factor IX, Factor XI, Von Willebrand factor, Protein C, Protein S, activated Protein C resistance. Metabolic markers: Once participants are started on gender affirming hormone therapy, metabolic markers will be checked at baseline and every 6 months. Markers will include: Insulin level, fasting glucose, body mass index, waist circumference. Hormone Profile: Once participants are started on gender affirming hormone therapy, hormonal levels will be checked every 4 weeks until estradiol and testosterone levels are within goal as established by standard of care. Daily Sublingual Tablet: Participants will be prescribed the medication and dosed based on their hormonal profile. Participants will take dose as once daily medication. Goal is achieve estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels
Twice Daily Sublingual Estradiol Plus Spironolactone
n=14 Participants
Starting dose will be 1 mg twice daily Plan to increase every month by 2 mg daily divided BID Goal is to achieve serum estradiol level between 100-200 pg/mL mL and to suppress testosterone to cisgender female levels All patients will also receive spironolactone. Spironolactone will be started at 50 mg daily and will increase to standard dose. Spironolactone will be started at 50 mg daily and will increase to standard dose. Pro-thrombotic markers: Once participants are started on gender affirming hormone therapy, pro-thombotic markers will be checked at baseline and every 6 months. Pro-thrombotic markers will include: Factor II, Factor IX, Factor XI, Von Willebrand factor, Protein C, Protein S, activated Protein C resistance. Metabolic markers: Once participants are started on gender affirming hormone therapy, metabolic markers will be checked at baseline and every 6 months. Markers will include: Insulin level, fasting glucose, body mass index, waist circumference. Hormone Profile: Once participants are started on gender affirming hormone therapy, hormonal levels will be checked every 4 weeks until estradiol and testosterone levels are within goal as established by standard of care. BID Sublingual Tablet: Participants will be prescribed the medication and dosed based on their hormonal profile. Participants will take dose as twice daily medication. Goal is achieve estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels
Estradiol Level in Transgender Female Patients
baseline
28.3 pg/mL
Standard Error 4.4
25.8 pg/mL
Standard Error 2.9
23.4 pg/mL
Standard Error 3.5
Estradiol Level in Transgender Female Patients
1 Month
56.8 pg/mL
Standard Error 9.4
52.6 pg/mL
Standard Error 9.6
55.2 pg/mL
Standard Error 5.2
Estradiol Level in Transgender Female Patients
6 Months
74.0 pg/mL
Standard Error 15.6
95.3 pg/mL
Standard Error 10.5
79.4 pg/mL
Standard Error 11.6

PRIMARY outcome

Timeframe: Change from baseline estrone level at 1, and 6 months

Degree of testosterone suppression by measuring estrone level in transgender female patients affirming hormone therapy

Outcome measures

Outcome measures
Measure
Transdermal Estradiol Plus Spironolactone
n=11 Participants
Starting dose will be 100 mcg/24hrs Plan to increase by 100 mcg/24hrs every month to a max dose of 400 mcg/24hrs Goal is to achieve a serum estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels All patients will also receive spironolactone. Spironolactone will be started at 50 mg daily and will increase to standard dose. Transdermal patch: Participants will be prescribed the medication and dosed based on their hormonal profile. Goal is achieve estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels Pro-thrombotic markers: Once participants are started on gender affirming hormone therapy, pro-thombotic markers will be checked at baseline and every 6 months. Pro-thrombotic markers will include: Factor II, Factor IX, Factor XI, Von Willebrand factor, Protein C, Protein S, activated Protein C resistance. Metabolic markers: Once participants are started on gender affirming hormone therapy, metabolic markers will be checked at baseline and every 6 months. Markers will include: Insulin level, fasting glucose, body mass index, waist circumference. Hormone Profile: Once participants are started on gender affirming hormone therapy, hormonal levels will be checked every 4 weeks until estradiol and testosterone levels are within goal as established by standard of care.
Daily Sublingual Estradiol Plus Spironolactone
n=13 Participants
Starting dose will be 2 mg daily Plan to increase every month by 2 mg daily Goal is to achieve serum estradiol level between 100-200 pg/mL mL and to suppress testosterone to cisgender female levels. All patients will also receive spironolactone. Spironolactone will be started at 50 mg daily and will increase to standard dose. Spironolactone will be started at 50 mg daily and will increase to standard dose. Pro-thrombotic markers: Once participants are started on gender affirming hormone therapy, pro-thombotic markers will be checked at baseline and every 6 months. Pro-thrombotic markers will include: Factor II, Factor IX, Factor XI, Von Willebrand factor, Protein C, Protein S, activated Protein C resistance. Metabolic markers: Once participants are started on gender affirming hormone therapy, metabolic markers will be checked at baseline and every 6 months. Markers will include: Insulin level, fasting glucose, body mass index, waist circumference. Hormone Profile: Once participants are started on gender affirming hormone therapy, hormonal levels will be checked every 4 weeks until estradiol and testosterone levels are within goal as established by standard of care. Daily Sublingual Tablet: Participants will be prescribed the medication and dosed based on their hormonal profile. Participants will take dose as once daily medication. Goal is achieve estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels
Twice Daily Sublingual Estradiol Plus Spironolactone
n=14 Participants
Starting dose will be 1 mg twice daily Plan to increase every month by 2 mg daily divided BID Goal is to achieve serum estradiol level between 100-200 pg/mL mL and to suppress testosterone to cisgender female levels All patients will also receive spironolactone. Spironolactone will be started at 50 mg daily and will increase to standard dose. Spironolactone will be started at 50 mg daily and will increase to standard dose. Pro-thrombotic markers: Once participants are started on gender affirming hormone therapy, pro-thombotic markers will be checked at baseline and every 6 months. Pro-thrombotic markers will include: Factor II, Factor IX, Factor XI, Von Willebrand factor, Protein C, Protein S, activated Protein C resistance. Metabolic markers: Once participants are started on gender affirming hormone therapy, metabolic markers will be checked at baseline and every 6 months. Markers will include: Insulin level, fasting glucose, body mass index, waist circumference. Hormone Profile: Once participants are started on gender affirming hormone therapy, hormonal levels will be checked every 4 weeks until estradiol and testosterone levels are within goal as established by standard of care. BID Sublingual Tablet: Participants will be prescribed the medication and dosed based on their hormonal profile. Participants will take dose as twice daily medication. Goal is achieve estradiol level between 100-200 pg/mL and to suppress testosterone to cisgender female levels
Estrone Level in Transgender Female Patients
1 Month
41.0 pg/ml
Standard Error 5.2
302 pg/ml
Standard Error 76.1
240.1 pg/ml
Standard Error 36.4
Estrone Level in Transgender Female Patients
baseline
33.5 pg/ml
Standard Error 6.8
27.7 pg/ml
Standard Error 5.7
26.7 pg/ml
Standard Error 3.7
Estrone Level in Transgender Female Patients
6 Months
57.3 pg/ml
Standard Error 7.7
635.7 pg/ml
Standard Error 81.3
532.9 pg/ml
Standard Error 124.6

Adverse Events

Transdermal Estradiol Plus Spironolactone

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

Daily Sublingual Estradiol Plus Spironolactone

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

Twice Daily Sublingual Estradiol Plus Spironolactone

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

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Thomas Baranski, MD, PhD

Washington University in St. Louis, School of Medicine

Phone: 314-747-3997

Results disclosure agreements

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