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An Oral GnRH Antagonist to Treat Mild Autonomous Cortisol Excess (MACE) Due to Adrenal Adenomas in Postmenopausal Women

An Oral GnRH Antagonist to Treat Mild Autonomous Cortisol Excess (MACE) Due to Adrenal Adenomas in Postmenopausal Women

Status
Terminated
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05038878
Enrollment
4
Registered
2021-09-09
Start date
2021-07-06
Completion date
2022-06-24
Last updated
2025-03-18

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

Conditions

Mild Autonomous Cortisol Excess

Keywords

mild autonomous cortisol excess (MACE), adrenal adenomas, postmenopausal women, GnRH antagonist

Brief summary

The purpose of this research study is to determine if treatment with Elagolix will improve body weight, waist circumference, muscle strength, cortisol secretion, blood glucose, cholesterol, and bone quality as well as mood and quality of life in a female patient with mild hypercortisolism from adrenal overproduction of cortisol. Many people with adrenal nodules, or non-cancerous growths in the adrenal glands, have mildly elevated cortisol levels. Cortisol is a hormone normally made by the adrenal glands. It is increasingly being recognized that even mild elevations in cortisol levels can negatively impact blood glucose levels, serum cholesterol levels, weight and other metabolic parameters. This can lead to an increase in risk for cardiovascular disease. The study team is trying to determine if the medication Elagolix might be an effective treatment for post-menopausal females with mild hypercortisolism. Elagolix is a medication used to treat a medical condition called endometriosis by decreasing the body's production of sex hormones. Growth of adrenal adenomas is thought to be driven by such sex hormones. Therefore, by decreasing production of these hormones, the study team hopes to treat hypercortisolism caused by adrenal adenomas.

Interventions

DRUGElagolix

Patients will be given Elagolix 200 mg orally twice daily for a total of 6 months

Sponsors

AbbVie
CollaboratorINDUSTRY
Icahn School of Medicine at Mount Sinai
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Healthy volunteers
No

Inclusion criteria

* Post-menopausal women that have incidentally found adrenal adenomas with benign appearing characteristics on imaging (\<4 cm, non-contrast CT \<10 HU and/or lipid rich and benign appearing on MRI) * Absence of anti-anabolic clinical features of overt Cushing's signs (proximal muscle weakness, \>three ecchymoses, hyperpigmented striae) and 2 of 3 of the following: * Elevated 24 hr urine free cortisol (UFC) above the upper limit of normal (\>50 mcg/24 hours) in at least two complete 24-hour tests and/or * Late night salivary cortisol more than upper limit of normal in at least two tests and/or * an abnormal dexamethasone suppression defined as post 1mg dexamethasone suppression test serum cortisol concentration of \>1.8 mcg/ml * Clinic status of cessation of menses for 12 mo in a previously cycling woman and reflecting complete or nearly complete permanent cessation of ovarian function and fertility (26). * Patients with osteoporosis that are not receiving treatment with either antiresorptive medications (bisphosphonates, denosumab) or anabolic agents (teriparitide, abaloparatide or romosozumab)

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Change in Cortisol Levelbaseline and 6 monthsCortisol level after dexamethasone suppression test which measures whether adrenocorticotrophic hormone (ACTH) secretion by the pituitary can be suppressed. Number of participants with interval improvement and normalization of late-night salivary results after 6 months of treatment.
Change in Cortisol Levelbaseline and 6 monthsCortisol level after dexamethasone suppression test which measures whether adrenocorticotrophic hormone (ACTH) secretion by the pituitary can be suppressed. Cortisol secretion as reported below by assessment of pre-treatment and post-treatment of late-night salivary cortisol levels (normal midnight values: \<0.010 - 0.090)
Number of Participants With Change in 24 Hour Urine Free Cortisol LevelBaseline and 6 months24 hour urine free cortisol measurements. The cortisol urine test measures the level of cortisol in the urine. Cortisol is a glucocorticoid (steroid) hormone produced by the adrenal gland. Number of participants with improvement in 24-hour urinary free cortisol after treatment (normal 24-hr urinary cortisol is between 6 - 42 ug/24 hr).
24 Hour Urine Free Cortisol LevelBaseline and 6 months24 hour urine free cortisol measurements. The cortisol urine test measures the level of cortisol in the urine. Cortisol is a glucocorticoid (steroid) hormone produced by the adrenal gland. Cortisol secretion as reported below by assessment of pre-treatment and post-treatment of 24-hour urinary cortisol levels (normal 24-hr urinary cortisol is between 6 - 42 ug/24 hr).
Number of Participants With Change in Adenoma Size as Compared to BaselineBaseline and 6 monthsAll patients will have baseline imaging (CT or MRI) within 6 months to start of treatment and then will have repeat imaging with CT abdomen without contrast at 6 months to determine the effect of elagolix treatment on adrenal adenoma size and imaging characteristics. The images will be reviewed by a dedicated adrenal radiologist for consistency.
Change in Adenoma Size as Compared to BaselineBaseline and 6 monthsAll patients will have baseline imaging (CT or MRI) within 6 months to start of treatment and then will have repeat imaging with CT abdomen without contrast at 6 months to determine the effect of elagolix treatment on adrenal adenoma size and imaging characteristics. The images will be reviewed by a dedicated adrenal radiologist for consistency.

Secondary

MeasureTime frameDescription
Beck's Depression Scalebaseline and 6 monthsBeck's Depression Scale is scored on a scale of 1 to 40, where the higher score indicates severe or extreme depression.
Change in Body Weight as Compared to Baselinebaseline and 6 monthsMean percent change in body weight is measured in kilograms at 6 months compared to baseline
State Trait Anxiety Inventory (STAI)baseline and 6 monthsThe State Trait Anxiety Inventory gives a score range from 6-24 with the higher score indicating a higher level of anxiety.
Change in Body Weight for Those Participants Who Lost Weightbaseline and 6 monthsMean percent change in body weight is measured in kilograms at 6 months compared to baseline
Trunk Fatbaseline and 6 monthsTrunk Fat composition assessed by DEXA scans at baseline and at 6 months.
Preserved Glucosebaseline and 6 monthsfasting blood sugar
Number of Participants With Vertebral Fracturesbaseline and 6 monthsNumber of participants with vertebral fractures to measure rates will be assessed by lateral X-rays of thoracic and lumbar spine.
The Cushing's Quality of Life Questionnairebaseline and 6 monthsThe Cushing's Quality of Life Questionnaire is converted to a 0-100 scale in which 0 indicates the worse and 100 the best possible quality of life.

Countries

United States

Participant flow

Participants by arm

ArmCount
GnRH Antagonist (Elagolix)
Post-menopausal women with benign appearing adrenal adenomas, absence of clinical features of overt Cushing's signs or symptoms and MACE confirmed on either 24 hr urine free cortisol (UFC), late night salivary cortisol and/or abnormal dexamethasone suppression Elagolix: Patients will be given Elagolix 200 mg orally twice daily for a total of 6 months
4
Total4

Baseline characteristics

CharacteristicGnRH Antagonist (Elagolix)
Age, Continuous64.25 years
STANDARD_DEVIATION 5.37
Race and Ethnicity Not Collected— Participants
Sex: Female, Male
Female
4 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 4
other
Total, other adverse events
0 / 4
serious
Total, serious adverse events
0 / 4

Outcome results

Primary

24 Hour Urine Free Cortisol Level

24 hour urine free cortisol measurements. The cortisol urine test measures the level of cortisol in the urine. Cortisol is a glucocorticoid (steroid) hormone produced by the adrenal gland. Cortisol secretion as reported below by assessment of pre-treatment and post-treatment of 24-hour urinary cortisol levels (normal 24-hr urinary cortisol is between 6 - 42 ug/24 hr).

Time frame: Baseline and 6 months

ArmMeasureGroupValue (MEDIAN)
GnRH Antagonist (Elagolix)24 Hour Urine Free Cortisol Levelbaseline14 ug/24 hour
GnRH Antagonist (Elagolix)24 Hour Urine Free Cortisol Level6 months23 ug/24 hour
Primary

Change in Adenoma Size as Compared to Baseline

All patients will have baseline imaging (CT or MRI) within 6 months to start of treatment and then will have repeat imaging with CT abdomen without contrast at 6 months to determine the effect of elagolix treatment on adrenal adenoma size and imaging characteristics. The images will be reviewed by a dedicated adrenal radiologist for consistency.

Time frame: Baseline and 6 months

ArmMeasureGroupValue (MEAN)Dispersion
GnRH Antagonist (Elagolix)Change in Adenoma Size as Compared to Baselinebaseline (MRI) Right1.78 cmStandard Deviation 0.26
GnRH Antagonist (Elagolix)Change in Adenoma Size as Compared to Baseline6 months (CT) Right1.8 cmStandard Deviation 0.22
GnRH Antagonist (Elagolix)Change in Adenoma Size as Compared to Baselinebaseline (MRI) Left2.33 cmStandard Deviation 1.27
GnRH Antagonist (Elagolix)Change in Adenoma Size as Compared to Baseline6 months (CT) Left2.13 cmStandard Deviation 1.29
Primary

Change in Cortisol Level

Cortisol level after dexamethasone suppression test which measures whether adrenocorticotrophic hormone (ACTH) secretion by the pituitary can be suppressed. Cortisol secretion as reported below by assessment of pre-treatment and post-treatment of late-night salivary cortisol levels (normal midnight values: \<0.010 - 0.090)

Time frame: baseline and 6 months

ArmMeasureGroupValue (MEDIAN)
GnRH Antagonist (Elagolix)Change in Cortisol LevelBaseline Salivary #10.252 ng/mL
GnRH Antagonist (Elagolix)Change in Cortisol LevelBaseline Salivary #20.092 ng/mL
GnRH Antagonist (Elagolix)Change in Cortisol Level6 months Salivary #10.092 ng/mL
GnRH Antagonist (Elagolix)Change in Cortisol Level6 months Salivary #20.4355 ng/mL
Primary

Number of Participants With Change in 24 Hour Urine Free Cortisol Level

24 hour urine free cortisol measurements. The cortisol urine test measures the level of cortisol in the urine. Cortisol is a glucocorticoid (steroid) hormone produced by the adrenal gland. Number of participants with improvement in 24-hour urinary free cortisol after treatment (normal 24-hr urinary cortisol is between 6 - 42 ug/24 hr).

Time frame: Baseline and 6 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
GnRH Antagonist (Elagolix)Number of Participants With Change in 24 Hour Urine Free Cortisol Level1 Participants
Primary

Number of Participants With Change in Adenoma Size as Compared to Baseline

All patients will have baseline imaging (CT or MRI) within 6 months to start of treatment and then will have repeat imaging with CT abdomen without contrast at 6 months to determine the effect of elagolix treatment on adrenal adenoma size and imaging characteristics. The images will be reviewed by a dedicated adrenal radiologist for consistency.

Time frame: Baseline and 6 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
GnRH Antagonist (Elagolix)Number of Participants With Change in Adenoma Size as Compared to Baseline0 Participants
Primary

Number of Participants With Change in Cortisol Level

Cortisol level after dexamethasone suppression test which measures whether adrenocorticotrophic hormone (ACTH) secretion by the pituitary can be suppressed. Number of participants with interval improvement and normalization of late-night salivary results after 6 months of treatment.

Time frame: baseline and 6 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
GnRH Antagonist (Elagolix)Number of Participants With Change in Cortisol Level2 Participants
Secondary

Beck's Depression Scale

Beck's Depression Scale is scored on a scale of 1 to 40, where the higher score indicates severe or extreme depression.

Time frame: baseline and 6 months

ArmMeasureGroupValue (MEAN)Dispersion
GnRH Antagonist (Elagolix)Beck's Depression Scalebaseline29 score on a scaleStandard Deviation 10.1
GnRH Antagonist (Elagolix)Beck's Depression Scale6 months22 score on a scaleStandard Deviation 8.3
Secondary

Change in Body Weight as Compared to Baseline

Mean percent change in body weight is measured in kilograms at 6 months compared to baseline

Time frame: baseline and 6 months

ArmMeasureValue (MEAN)Dispersion
GnRH Antagonist (Elagolix)Change in Body Weight as Compared to Baseline1.86 percent change in body weightStandard Deviation 11.4
Secondary

Change in Body Weight for Those Participants Who Lost Weight

Mean percent change in body weight is measured in kilograms at 6 months compared to baseline

Time frame: baseline and 6 months

Population: Data for participants who lost weight

ArmMeasureValue (MEAN)Dispersion
GnRH Antagonist (Elagolix)Change in Body Weight for Those Participants Who Lost Weight-3.86 percent change in body weightStandard Deviation 0.6
Secondary

Number of Participants With Vertebral Fractures

Number of participants with vertebral fractures to measure rates will be assessed by lateral X-rays of thoracic and lumbar spine.

Time frame: baseline and 6 months

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
GnRH Antagonist (Elagolix)Number of Participants With Vertebral FracturesBaseline0 Participants
GnRH Antagonist (Elagolix)Number of Participants With Vertebral Fractures6 months0 Participants
Secondary

Preserved Glucose

fasting blood sugar

Time frame: baseline and 6 months

ArmMeasureGroupValue (MEAN)Dispersion
GnRH Antagonist (Elagolix)Preserved GlucoseBaseline136.5 mg/dLStandard Deviation 51.9
GnRH Antagonist (Elagolix)Preserved Glucose6 months126.75 mg/dLStandard Deviation 41.6
Secondary

State Trait Anxiety Inventory (STAI)

The State Trait Anxiety Inventory gives a score range from 6-24 with the higher score indicating a higher level of anxiety.

Time frame: baseline and 6 months

ArmMeasureGroupValue (MEAN)Dispersion
GnRH Antagonist (Elagolix)State Trait Anxiety Inventory (STAI)baseline17 score on a scaleStandard Deviation 5.4
GnRH Antagonist (Elagolix)State Trait Anxiety Inventory (STAI)6 months12 score on a scaleStandard Deviation 3.8
Secondary

The Cushing's Quality of Life Questionnaire

The Cushing's Quality of Life Questionnaire is converted to a 0-100 scale in which 0 indicates the worse and 100 the best possible quality of life.

Time frame: baseline and 6 months

ArmMeasureGroupValue (MEAN)Dispersion
GnRH Antagonist (Elagolix)The Cushing's Quality of Life Questionnairebaseline70 score on a scaleStandard Deviation 9.2
GnRH Antagonist (Elagolix)The Cushing's Quality of Life Questionnaire6 months83 score on a scaleStandard Deviation 7
Secondary

Trunk Fat

Trunk Fat composition assessed by DEXA scans at baseline and at 6 months.

Time frame: baseline and 6 months

Population: Data for participants who completed dexa scan at both timepoints

ArmMeasureGroupValue (MEAN)Dispersion
GnRH Antagonist (Elagolix)Trunk FatBaseline44.7 percent of total fatStandard Deviation 3.9
GnRH Antagonist (Elagolix)Trunk Fat6 months42.6 percent of total fatStandard Deviation 1.6

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