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Primary Ovarian Insufficiency: Phenotype and Optimal Treatment

Primary Ovarian Insufficiency: Phenotype and Optimal Treatment

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03568708
Enrollment
19
Registered
2018-06-26
Start date
2018-11-01
Completion date
2023-01-05
Last updated
2024-06-25

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

Conditions

Primary Ovarian Insufficiency

Keywords

Primary Ovarian Insufficiency, Hormone Replacement Therapy, Estrogen Deficiency

Brief summary

This pilot study will observe the progression of newly diagnosed POI patients physical and psychology outcomes after initiating standard of care HRT treatment in comparison to healthy female control participants' physical and psychology health over 24 months.

Detailed description

Background: Primary ovarian insufficiency (POI) is an enigmatic condition that affects \ 1/10,000 women by age 20. Sometimes referred to as early menopause, POI is characterized by estrogen deficiency among other hormonal abnormalities that resemble the menopause. POI is a serious chronic condition with no cure. The clinical presentation or 'phenotype' in adolescents is not well understood. Health consequences may include delayed or arrested puberty, skeletal losses, and the threat to reproductive health. Both the metabolic and emotional sequelae are substantial, and one of the most concerning is compromised bone health. The optimal hormone replacement therapy (HRT) regimen for these young women is debated and practice varies among health providers. Importantly only sparse data exist to guide clinicians to make evidence-based decisions regarding the management of these patients. If initiated early, HRT may prevent estrogen-associated bone loss. Impact: Better understanding of POI may lead to improved treatments for this underserved population and have significant implications for the treatment of estrogen deficiency in other populations of adolescents and young women, and for all women going though natural menopause later in life. Little is known about the effects of HRT on bone health, body composition, cognition, and health-related quality of life, especially among adolescents. Understanding how this therapy affects these multiple health outcomes will fill knowledge gaps regarding treatment for young patients with POI, with potential implications for adolescents and young women with estrogen deficiency in other clinical settings. We will define the clinical presentation (i.e., phenotype) of adolescent POI. The pilot data collected will be used in a future application to the National Institutes of Health, to fund a larger trial that builds on observations from this initial study. The information gained from this pediatric model may also provide insights on management of the natural menopause that occurs in all women later in life. Methods: Ten adolescents with idiopathic POI (i.e., from unexplained causes) will be recruited through the Cincinnati Children's Hospital Medical Center (CCHMC) Teen Health Center, Endocrine or Pediatric/Adolescent Gynecology Clinics. Ten healthy controls will be recruited from the Teen Health Center. Participants with POI will receive transdermal estrogen replacement (beginning at 25 µg/patch applied weekly), with the dose increased at subsequent study visits that will occur at 3, 6, 12, 18, and 24 months. All data collection will take place at the CCHMC Schubert Research Clinic. The investigators will measure bone density of the central skeleton and body composition by dual-energy x-ray absorptiometry. To evaluate the peripheral skeleton, bone and muscle measures will be obtained by peripheral quantitative computed tomography. At each visit, the participants will have blood drawn to measure circulating hormone levels that are characteristically altered in adolescents with POI, along with safety assays. Cognitive functioning will be assessed using standardized tools. Participants will complete quality of life assessments, along with nutrition and physical activity surveys. Lastly, all participants will also complete a detailed medical history and health assessment. Implications/Future Directions: Once the phenotype of adolescent POI is more clearly defined, a logical next question will be to determine whether negative health outcomes can be prevented or modified. Data from the proposed trial will guide the design of future prospective studies that evaluate the effects of traditional treatments (e.g., HRT), including a longer study to monitor HRT therapy, as well as more experimental treatments (e.g., skeletal agents) that may benefit young women with this rare condition. In addition, findings are expected to open avenues of research for adolescents and women with estrogen deficiency in other clinical settings.

Interventions

In an open-label fashion, participants with POI will receive transdermal estradiol (beginning at a dose of 25 µg/patch applied weekly), with the dose increased at 3, 6 12, and 18 months (to 37.5, 50, 75, and 100 µg/patch).

Sponsors

Patty Brisben Foundation For Women's Sexual Health
CollaboratorOTHER
Children's Hospital Medical Center, Cincinnati
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
11 Years to 18 Years
Healthy volunteers
Yes

Inclusion criteria

for POI patients The participant must: 1. Be willing to give informed consent/assent 2. Have a diagnosis of POI based on 2 elevated serum follicle stimulating hormone (FSH) levels obtained \>1 month apart. 3. Be English-speaking

Exclusion criteria

for POI patients The participant must not: 1. Have other chronic disease known to affect bone health (e.g., cystic fibrosis, celiac disease, etc.) 2. Have an identified secondary cause of ovarian insufficiency 3. Have POI in the setting of Turner syndrome, Fanconi Anemia, galactosemia, or Perrault syndrome (as associated neurological/medical sequelae could confound baseline measures) 4. Have used medications known to affect bone metabolism over previous 3 months (e.g. anticonvulsants, chronic use of glucocorticoids, Depo-Provera, oral contraceptive pills) 5. Be currently pregnant (to be confirmed by pregnancy testing) Inclusion Criteria for Healthy Adolescent Control Participants The participant must: 1. Be similar in age and race group to the idiopathic POI group 1. Control participants age must be within one year of age from the POI participant at the time of enrollment. Age may be within one year older or one year younger 2. Race of controls participants will be matched based on race of POI patient participants 2. Have a BMI within 20% of the BMI of the case-matched participant 3. If postmenarchal, will be regularly menstruating (cycles between 21-35 days) a. if POI participant is \<12.5yrs (mean age of menarche) will match with a pre- menarchal control participant 4. Be English-speaking

Design outcomes

Primary

MeasureTime frameDescription
Change in Dual Energy X-ray Absorptiometry (DXA) Measure of Bone Mineral Density (BMD) of the Lumbar SpineChange in bone mineral density and body composition from baseline to 24 monthsChange in height adjusted areal BMD Z-score of the lumbar spine from baseline to 24 months within groups. BMI Z-score, calcium intake, vitamin D intake and physical activity were included in the analysis. As DXA BMD Z-scores already include race, age, and sex, these variables were not included in the analysis. Z-scores ranging between -2.0 and 2.0 are considered normal. A Z-score \<-2.0 is considered low. This analysis considers change in Z-score, therefore a high value reflects a greater increase in BMD Z-score.

Secondary

MeasureTime frameDescription
Change in Volumetric Bone Mineral Density (vBMD) at the Distal Radius as Measured by Peripheral Quantitative Computed Tomography (pQCT)Change from baseline to 24 monthsTo assess the appendicular (peripheral) skeleton, pQCT (Stratec XCT 2000, Orthometrix, Inc., White Plains, NY) bone measures were obtained of the non-dominant radius at the 3% and 66% sites. Measurements were acquired with a voxel size of 0.4 mm, slice thickness of 2.3 mm, and scan speed of 25 mm/sec, and analyzed with manufacturer software version 6.
AnthropometricsBaseline and 24 monthsThe mean BMI in kg/m\^2 is presented for each study group at baseline and at the 24 months follow up visit to show that there was no significant difference between groups nor a significant change in BMI over the duration of the study.
Change in Lean Mass as Measured by DXA Body CompositionChange in lean mass from baseline to 24 monthsLean mass was obtained from the whole body DXA scan. Change in baseline to 24 months was assessed.
Change in Symptoms of Anxiety as Measured by Screen for Child Anxiety Related Disorders (SCARED)Change from SCARED score baseline to 24 monthsA 41 item self-report tool to assess for anxiety where each question receives a score of either 0, 1 or 2. Range of scores is 0 to 82. A total score of ≥ 25 may indicate the presence of an Anxiety Disorder. A higher score indicates there are more endorsed symptoms of anxiety.
Change in Dual Energy X-ray Absorptiometry (DXA) Measure of Bone Mineral Density (BMD) at the Whole Body Less Head, Total Hip, and Femoral Neckbaseline to 24 monthsTo assess changes in bone mineral density DXA height adjusted BMD Z-scores of the whole body less head, total hip and femoral neck were measured. BMI, calcium intake, vitamin D intake and physical activity were included in the analysis. As DXA BMD Z-scores already include race, age, and sex, these variables were not included in the analysis. Z-scores ranging between -2.0 and 2.0 are considered normal. A Z-score \<-2.0 is considered low. This analysis considers change in Z-score, therefore a high value reflects a greater increase in BMD Z-score.
Change in Memory as Assessed by the Children and Adolescent Memory Profile (CHAMP) Total Memory Index ScoreChange from score from baseline to 24 monthsThe ChAMP is a norm-referenced test of memory and learning that was designed for use with children, adolescents, and young adults ranging from 5 through 21 years. The ChAMP includes 4 Subtests of visual and verbal memory to generate a total memory index score as a measure of overall memory. The total memory index score ranges from 50-150 with a mean=100 and standard deviation=15. Higher scores indicating better memory. The data presented here is the change in the total memory index score from baseline visit to the 24 month follow up time.
Change in Quality of Life as Assessed by the Child Health Questionnaire-Child Self-Report Form (CHQ-CF87)Change from baseline to 24 monthsThe CHQ-87 is an 87-item self-report survey is designed to measure the physical and psychosocial health of adolescents. The total score ranges from 0-100. Higher scores indicate better quality of life. This instrument is reliable and valid for evaluating aspects of health pertinent across age, gender, health condition, and socioeconomic status in adolescents.
Compliance With Transdermal Estrogen PatchPatch Calendars were collected at 6 months, 12 months, 18 months and 24 months. Data presented is through study completion.Participants with primary ovarian insufficiency (POI) were prescribed weekly transdermal estrogen (TDE2) patches and asked to log on a patch calendar when they changed the patch. Patch calendars were reviewed for compliance and weeks where at least one patch was applied were considered to be in compliance. Weeks in compliance generated the numerator whereas total weeks of participation in the study constituted the numerator.
Study Medications - Serum EstradiolBaseline, 12 months, 24 monthsMean serum estradiol levels as measured in participants with POI.
Change in Symptoms of Depression as Measured by Child Depression Inventory-II (CDI-II)Change from CDI-II score from baseline to 24 monthsA brief self-report test that helps assess cognitive, affective and behavioral signs of depression in children and adolescents 7 to 17 years old. Scales include Emotional and Functional Problems, along with subscales of Negative mood/Physical symptoms, Negative Self-Esteem, Interpersonal Problems, and Ineffectiveness. The total score is converted into a T-score (mean=50, standard deviation=10) where a result \>64 is considered elevated. A higher score indicates there are more endorsed symptoms of depression.

Countries

United States

Participant flow

Participants by arm

ArmCount
Control Participants
The control group will reflect a comparison group similar to the POI patient group. As bone density, body composition, and cognitive domains continue to mature throughout the teenage years, this comparison group will provide an important metric of normal growth and development.
9
Primary Ovarian Insufficiency (POI) Participants
This group will be participants who have been recently diagnosed with POI. In an open-label fashion, participants with POI will receive Transdermal Estrogen(beginning at a dose of 25 μg/patch applied weekly), with the dose increased at 3, 6 12, and 18 months (to 37.5, 50, 75, and 100 µg/patch).
10
Total19

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up01
Overall StudyWithdrawal by Subject11

Baseline characteristics

CharacteristicControl ParticipantsPrimary Ovarian Insufficiency (POI) ParticipantsTotal
Age, Categorical
<=18 years
8 Participants8 Participants16 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
1 Participants2 Participants3 Participants
Age, Continuous16.9 years
STANDARD_DEVIATION 0.94
16.8 years
STANDARD_DEVIATION 1.25
16.8 years
STANDARD_DEVIATION 1.8
Body Mass Index (BMI)25.90 kg/m^2
STANDARD_DEVIATION 4.78
26.37 kg/m^2
STANDARD_DEVIATION 6.48
26.15 kg/m^2
STANDARD_DEVIATION 5.79
Bone Mineral Density Femoral Neck0.91 Z-score
STANDARD_DEVIATION 0.68
-1.12 Z-score
STANDARD_DEVIATION 0.76
-0.16 Z-score
STANDARD_DEVIATION 1.26
Bone Mineral Density Lumbar Spine0.80 Z-score
STANDARD_DEVIATION 0.76
-1.80 Z-score
STANDARD_DEVIATION 1.05
-0.57 Z-score
STANDARD_DEVIATION 1.61
Bone Mineral Density Total Hip0.83 Z-score
STANDARD_DEVIATION 0.76
-0.94 Z-score
STANDARD_DEVIATION 0.68
-0.10 Z-score
STANDARD_DEVIATION 1.15
Bone Mineral Density Whole Body less head0.00 Z-score
STANDARD_DEVIATION 0.96
-1.93 Z-score
STANDARD_DEVIATION 0.84
-1.02 Z-score
STANDARD_DEVIATION 1.32
Child and Adolescent Memory Profile (CHaMP) Total Memory Index89.5 units on a scale
STANDARD_DEVIATION 9.1
93.7 units on a scale
STANDARD_DEVIATION 11.7
91.8 units on a scale
STANDARD_DEVIATION 10.6
Child Health Questionnaire (CHQ-87) Total Score76.1 units on a scale
STANDARD_DEVIATION 11.6
70.1 units on a scale
STANDARD_DEVIATION 12.3
72.9 units on a scale
STANDARD_DEVIATION 12
Children's Depression Inventory-II (CDI-2)51.0 units on a scale
STANDARD_DEVIATION 11.4
55.3 units on a scale
STANDARD_DEVIATION 10.9
53.3 units on a scale
STANDARD_DEVIATION 11.1
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
3 Participants3 Participants6 Participants
Race (NIH/OMB)
More than one race
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
6 Participants6 Participants12 Participants
Region of Enrollment
United States
9 Participants10 Participants19 Participants
Screen for Child Anxiety Related Disorders (SCARED)17.2 units on a scale
STANDARD_DEVIATION 12.2
27.0 units on a scale
STANDARD_DEVIATION 14.9
22.4 units on a scale
STANDARD_DEVIATION 14.2
Sex: Female, Male
Female
9 Participants10 Participants19 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 90 / 10
other
Total, other adverse events
4 / 98 / 10
serious
Total, serious adverse events
0 / 91 / 10

Outcome results

Primary

Change in Dual Energy X-ray Absorptiometry (DXA) Measure of Bone Mineral Density (BMD) of the Lumbar Spine

Change in height adjusted areal BMD Z-score of the lumbar spine from baseline to 24 months within groups. BMI Z-score, calcium intake, vitamin D intake and physical activity were included in the analysis. As DXA BMD Z-scores already include race, age, and sex, these variables were not included in the analysis. Z-scores ranging between -2.0 and 2.0 are considered normal. A Z-score \<-2.0 is considered low. This analysis considers change in Z-score, therefore a high value reflects a greater increase in BMD Z-score.

Time frame: Change in bone mineral density and body composition from baseline to 24 months

Population: One POI participant had prior oral contraceptive exposure, no matched control, and did not follow up for subsequent visits. For these reasons it was recommended that her data not be included in the analyses.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Control ParticipantsChange in Dual Energy X-ray Absorptiometry (DXA) Measure of Bone Mineral Density (BMD) of the Lumbar Spine0.228 Z-scoreStandard Deviation 0.289
POI ParticipantsChange in Dual Energy X-ray Absorptiometry (DXA) Measure of Bone Mineral Density (BMD) of the Lumbar Spine0.673 Z-scoreStandard Deviation 0.289
Secondary

Anthropometrics

The mean BMI in kg/m\^2 is presented for each study group at baseline and at the 24 months follow up visit to show that there was no significant difference between groups nor a significant change in BMI over the duration of the study.

Time frame: Baseline and 24 months

ArmMeasureGroupValue (MEAN)Dispersion
Control ParticipantsAnthropometricsBMI at 24 months27.64 kg/m^2Standard Deviation 6.04
Control ParticipantsAnthropometricsBMI at Baseline25.9 kg/m^2Standard Deviation 4.78
POI ParticipantsAnthropometricsBMI at 24 months27.86 kg/m^2Standard Deviation 9.62
POI ParticipantsAnthropometricsBMI at Baseline27.01 kg/m^2Standard Deviation 6.93
Secondary

Change in Dual Energy X-ray Absorptiometry (DXA) Measure of Bone Mineral Density (BMD) at the Whole Body Less Head, Total Hip, and Femoral Neck

To assess changes in bone mineral density DXA height adjusted BMD Z-scores of the whole body less head, total hip and femoral neck were measured. BMI, calcium intake, vitamin D intake and physical activity were included in the analysis. As DXA BMD Z-scores already include race, age, and sex, these variables were not included in the analysis. Z-scores ranging between -2.0 and 2.0 are considered normal. A Z-score \<-2.0 is considered low. This analysis considers change in Z-score, therefore a high value reflects a greater increase in BMD Z-score.

Time frame: baseline to 24 months

Population: One POI participant had prior oral contraceptive exposure, no matched control, and did not follow up for subsequent visits. For these reasons it was recommended that her data not be included in the analyses.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Control ParticipantsChange in Dual Energy X-ray Absorptiometry (DXA) Measure of Bone Mineral Density (BMD) at the Whole Body Less Head, Total Hip, and Femoral NeckFemoral Neck0.337 Z-scoreStandard Deviation 0.195
Control ParticipantsChange in Dual Energy X-ray Absorptiometry (DXA) Measure of Bone Mineral Density (BMD) at the Whole Body Less Head, Total Hip, and Femoral NeckWhole Body Less Head0.433 Z-scoreStandard Deviation 0.199
Control ParticipantsChange in Dual Energy X-ray Absorptiometry (DXA) Measure of Bone Mineral Density (BMD) at the Whole Body Less Head, Total Hip, and Femoral NeckTotal Hip0.231 Z-scoreStandard Deviation 0.17
POI ParticipantsChange in Dual Energy X-ray Absorptiometry (DXA) Measure of Bone Mineral Density (BMD) at the Whole Body Less Head, Total Hip, and Femoral NeckWhole Body Less Head0.815 Z-scoreStandard Deviation 0.198
POI ParticipantsChange in Dual Energy X-ray Absorptiometry (DXA) Measure of Bone Mineral Density (BMD) at the Whole Body Less Head, Total Hip, and Femoral NeckTotal Hip0.370 Z-scoreStandard Deviation 0.17
POI ParticipantsChange in Dual Energy X-ray Absorptiometry (DXA) Measure of Bone Mineral Density (BMD) at the Whole Body Less Head, Total Hip, and Femoral NeckFemoral Neck0.556 Z-scoreStandard Deviation 0.196
Secondary

Change in Lean Mass as Measured by DXA Body Composition

Lean mass was obtained from the whole body DXA scan. Change in baseline to 24 months was assessed.

Time frame: Change in lean mass from baseline to 24 months

Population: One POI participant had prior oral contraceptive exposure, no matched control, and did not follow up for subsequent visits. For these reasons it was recommended that her data not be included in the analyses.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Control ParticipantsChange in Lean Mass as Measured by DXA Body Composition-0.999 kgStandard Deviation 1.754
POI ParticipantsChange in Lean Mass as Measured by DXA Body Composition1.577 kgStandard Deviation 1.753
Secondary

Change in Memory as Assessed by the Children and Adolescent Memory Profile (CHAMP) Total Memory Index Score

The ChAMP is a norm-referenced test of memory and learning that was designed for use with children, adolescents, and young adults ranging from 5 through 21 years. The ChAMP includes 4 Subtests of visual and verbal memory to generate a total memory index score as a measure of overall memory. The total memory index score ranges from 50-150 with a mean=100 and standard deviation=15. Higher scores indicating better memory. The data presented here is the change in the total memory index score from baseline visit to the 24 month follow up time.

Time frame: Change from score from baseline to 24 months

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Control ParticipantsChange in Memory as Assessed by the Children and Adolescent Memory Profile (CHAMP) Total Memory Index Score17.203 score on a scaleStandard Deviation 5.454
POI ParticipantsChange in Memory as Assessed by the Children and Adolescent Memory Profile (CHAMP) Total Memory Index Score24.619 score on a scaleStandard Deviation 5.379
Secondary

Change in Quality of Life as Assessed by the Child Health Questionnaire-Child Self-Report Form (CHQ-CF87)

The CHQ-87 is an 87-item self-report survey is designed to measure the physical and psychosocial health of adolescents. The total score ranges from 0-100. Higher scores indicate better quality of life. This instrument is reliable and valid for evaluating aspects of health pertinent across age, gender, health condition, and socioeconomic status in adolescents.

Time frame: Change from baseline to 24 months

Population: One POI participant had prior oral contraceptive exposure, no matched control, and did not follow up for subsequent visits. For these reasons it was recommended that her data not be included in the analyses.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Control ParticipantsChange in Quality of Life as Assessed by the Child Health Questionnaire-Child Self-Report Form (CHQ-CF87)2.710 score on a scaleStandard Deviation 6.028
POI ParticipantsChange in Quality of Life as Assessed by the Child Health Questionnaire-Child Self-Report Form (CHQ-CF87)5.686 score on a scaleStandard Deviation 5.988
Secondary

Change in Symptoms of Anxiety as Measured by Screen for Child Anxiety Related Disorders (SCARED)

A 41 item self-report tool to assess for anxiety where each question receives a score of either 0, 1 or 2. Range of scores is 0 to 82. A total score of ≥ 25 may indicate the presence of an Anxiety Disorder. A higher score indicates there are more endorsed symptoms of anxiety.

Time frame: Change from SCARED score baseline to 24 months

Population: One POI participant had prior oral contraceptive exposure, no matched control, and did not follow up for subsequent visits. For these reasons it was recommended that her data not be included in the analyses.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Control ParticipantsChange in Symptoms of Anxiety as Measured by Screen for Child Anxiety Related Disorders (SCARED)8.339 score on a scaleStandard Deviation 7.508
POI ParticipantsChange in Symptoms of Anxiety as Measured by Screen for Child Anxiety Related Disorders (SCARED)-1.261 score on a scaleStandard Deviation 7.454
Secondary

Change in Symptoms of Depression as Measured by Child Depression Inventory-II (CDI-II)

A brief self-report test that helps assess cognitive, affective and behavioral signs of depression in children and adolescents 7 to 17 years old. Scales include Emotional and Functional Problems, along with subscales of Negative mood/Physical symptoms, Negative Self-Esteem, Interpersonal Problems, and Ineffectiveness. The total score is converted into a T-score (mean=50, standard deviation=10) where a result \>64 is considered elevated. A higher score indicates there are more endorsed symptoms of depression.

Time frame: Change from CDI-II score from baseline to 24 months

Population: One POI participant had prior oral contraceptive exposure, no matched control, and did not follow up for subsequent visits. For these reasons it was recommended that her data not be included in the analyses.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Control ParticipantsChange in Symptoms of Depression as Measured by Child Depression Inventory-II (CDI-II)1.246 T-scoreStandard Deviation 5.949
POI ParticipantsChange in Symptoms of Depression as Measured by Child Depression Inventory-II (CDI-II)-1.187 T-scoreStandard Deviation 5.793
Secondary

Change in Volumetric Bone Mineral Density (vBMD) at the Distal Radius as Measured by Peripheral Quantitative Computed Tomography (pQCT)

To assess the appendicular (peripheral) skeleton, pQCT (Stratec XCT 2000, Orthometrix, Inc., White Plains, NY) bone measures were obtained of the non-dominant radius at the 3% and 66% sites. Measurements were acquired with a voxel size of 0.4 mm, slice thickness of 2.3 mm, and scan speed of 25 mm/sec, and analyzed with manufacturer software version 6.

Time frame: Change from baseline to 24 months

Population: One POI participant had prior oral contraceptive exposure, no matched control, and did not follow up for subsequent visits. For these reasons it was recommended that her data not be included in the analyses.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Control ParticipantsChange in Volumetric Bone Mineral Density (vBMD) at the Distal Radius as Measured by Peripheral Quantitative Computed Tomography (pQCT)3% trabecular volumetric BMD-1.245 mg/mm^3Standard Deviation 14.484
Control ParticipantsChange in Volumetric Bone Mineral Density (vBMD) at the Distal Radius as Measured by Peripheral Quantitative Computed Tomography (pQCT)66% cortical volumetric BMD-0.073 mg/mm^3Standard Deviation 17.728
POI ParticipantsChange in Volumetric Bone Mineral Density (vBMD) at the Distal Radius as Measured by Peripheral Quantitative Computed Tomography (pQCT)3% trabecular volumetric BMD-5.415 mg/mm^3Standard Deviation 14.638
POI ParticipantsChange in Volumetric Bone Mineral Density (vBMD) at the Distal Radius as Measured by Peripheral Quantitative Computed Tomography (pQCT)66% cortical volumetric BMD13.945 mg/mm^3Standard Deviation 18.178
Secondary

Compliance With Transdermal Estrogen Patch

Participants with primary ovarian insufficiency (POI) were prescribed weekly transdermal estrogen (TDE2) patches and asked to log on a patch calendar when they changed the patch. Patch calendars were reviewed for compliance and weeks where at least one patch was applied were considered to be in compliance. Weeks in compliance generated the numerator whereas total weeks of participation in the study constituted the numerator.

Time frame: Patch Calendars were collected at 6 months, 12 months, 18 months and 24 months. Data presented is through study completion.

Population: As only participants with POI were prescribed TDE2 patches, we only report data on this cohort.

ArmMeasureValue (MEAN)Dispersion
Control ParticipantsCompliance With Transdermal Estrogen Patch69 percentage of weeks with TDE2 useStandard Deviation 31.4
Secondary

Study Medications - Serum Estradiol

Mean serum estradiol levels as measured in participants with POI.

Time frame: Baseline, 12 months, 24 months

Population: The study was originally designed as a 12 month longitudinal trial. Subjects were given the option to continue for 24 months. One case participant declined the extension. As only participants with POI were prescribed transdermal estradiol patches, we only report data on this cohort.

ArmMeasureGroupValue (MEAN)Dispersion
Control ParticipantsStudy Medications - Serum EstradiolEstradiol 12 month55.41 pg/mLStandard Deviation 34.75
Control ParticipantsStudy Medications - Serum EstradiolEstradiol 24 month98.63 pg/mLStandard Deviation 93.96
Control ParticipantsStudy Medications - Serum EstradiolEstradiol Baseline7.49 pg/mLStandard Deviation 2.93

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