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An Extension Study to Evaluate the Efficacy and Safety of Elagolix in Premenopausal Women With Heavy Menstrual Bleeding Associated With Uterine Fibroids

Extension Study to Evaluate the Efficacy and Safety of Elagolix in Premenopausal Women With Heavy Menstrual Bleeding Associated With Uterine Fibroids

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02925494
Enrollment
433
Registered
2016-10-06
Start date
2016-09-14
Completion date
2019-03-22
Last updated
2021-07-13

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

Conditions

Heavy Menstrual Bleeding, Uterine Fibroids

Keywords

Uterine Fibroids, Elagolix, Heavy Menstrual Bleeding, Elagolix Sodium, Elagolix plus Norethindrone Acetate

Brief summary

This is an extension study for women who have already received six months of treatment in the phase III clinical trial M12-815 (NCT02654054) or M12-817 (NCT02691494), and will evaluate the long-term efficacy and safety of elagolix administered alone and in combination with estradiol/norethindrone acetate for an additional six months in the treatment of heavy menstrual bleeding associated with uterine fibroids.

Interventions

DRUGElagolix

film-coated tablets

Sponsors

AbbVie
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 51 Years
Healthy volunteers
No

Inclusion criteria

* Participant has completed the 6-Month Treatment Period of their respective Pivotal Study (either Study M12-815 or Study M12-817). * Participant did not meet removal criteria in bone mineral density (BMD) decrease in the spine, total hip and femoral neck at Month 6 of the Treatment Period of their respective Pivotal Study * Participant has negative urine and/or serum pregnancy test(s) results were consistently negative during the Treatment Period of their respective Pivotal Study and prior to first dose in this study. * Participant's endometrial biopsy from the Month 6 Visit of their respective Pivotal Study shows no clinically significant endometrial pathology.

Exclusion criteria

* Participant met criteria for removal from therapy in her respective Pivotal Study. * Participant is planning a pregnancy within the next 18 months. * Participant has current suicidal markers as noted at the Month 6 visit of her respective pivotal study. * Participant has any new medical conditions that may be unsuitable for participation. * Participant is using any systemic corticosteroids for over 14 days or is likely to require treatment with systemic corticosteroids during the course of the study. Over-the-counter and prescription topical, inhaled, intranasal or injectable (for occasional use) corticosteroids are allowed.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants Meeting the Criteria for ResponderFrom Month 0 (Baseline in Pivotal Study) to Final Month of Treatment Period (up through Month 6 in Extension Study)Percentage of responders, defined as participants who met the following conditions: * Menstrual blood loss (MBL) volume \< 80 mL during the Final Month (the last 28 days prior to and including the last dose date), and * ≥ 50% reduction in MBL volume from Baseline to the Final Month. Participants who prematurely discontinued study drug due to lack of efficacy, requires surgery or invasive intervention for treatment of uterine fibroids, or adverse events were considered non-responders regardless of whether she meets the two aforementioned responder criteria or not.

Secondary

MeasureTime frameDescription
Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodMonth 0 (Baseline in Pivotal Study), Extension Study: Day 1 to 28, Day 29 to 56, Day 57 to 84, Day 85 to 112, Day 113 to 140, Day 141 to 168, Final Month of Treatment Period (up through Month 6)Baseline MBL volume was defined as the mean of total MBL volume from all the qualified menstrual cycles during the Screening Period of the pivotal study, in which the total MBL volume is from all validated and non-validated sanitary products and the MBL volume of validated sanitary products only (excluding non-validated sanitary products) was greater than 80 mL.
Percent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodMonth 0 (Baseline in Pivotal Study), Extension Study: Day 1 to 28, Day 29 to 56, Day 57 to 84, Day 85 to 112, Day 113 to 140, Day 141 to 168, Final Month of Treatment Period (up through Month 6)Baseline MBL volume was defined as the mean of total MBL volume from all the qualified menstrual cycles during the Screening Period of the pivotal study, in which the total MBL volume is from all validated and non-validated sanitary products and the MBL volume of validated sanitary products only (excluding non-validated sanitary products) was greater than 80 mL.
Percentage of Participants With Suppression of Bleeding at the Final MonthFinal Month of Treatment Period (up through Month 6)Suppression of bleeding is defined as having 0 days of bleeding (spotting is allowed) during the Final Month with the interval starting from Study Day 11.
Percentage of Participants With Baseline Hemoglobin Concentration ≤ 10.5 g/dL and an Increase From Baseline > 2 g/dL at Month 6 During the Treatment PeriodMonth 6

Countries

Canada, Puerto Rico, United States

Participant flow

Recruitment details

A total of 433 participants who completed the 6-month Treatment Period in pivotal studies M12-815 (NCT02654054) or M12-817 (NCT02691494) were enrolled in this extension study at 114 sites in 2 countries (US \[including Puerto Rico\] and Canada).

Pre-assignment details

A total of 433 participants were treated in this extension study and were grouped according to the treatment assignments in pivotal studies M12-815 and M12-817 and this extension study.

Participants by arm

ArmCount
Placebo->Elagolix
Placebo in pivotal study and elagolix 300 mg BID in extension study.
59
Placebo->Elagolix + E2/NETA
Placebo in pivotal study and elagolix 300 mg BID plus E2/NETA (estradiol 1.0 mg/norethindrone acetate 0.5 mg) QD in extension study.
58
Elagolix->Elagolix
Elagolix 300 mg BID in pivotal study and elagolix 300 mg BID in extension study.
98
Elagolix + E2/NETA->Elagolix + E2/NETA
Elagolix 300 mg BID plus E2/NETA (estradiol 1.0 mg/norethindrone acetate 0.5 mg) QD in pivotal study and elagolix 300 mg BID plus E2/NETA (estradiol 1.0 mg/norethindrone acetate 0.5 mg) QD in extension study.
218
Total433

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Post-Treatment Follow-Up PeriodAdverse Event0001
Post-Treatment Follow-Up PeriodLost to Follow-up32910
Post-Treatment Follow-Up PeriodNon-Compliance0012
Post-Treatment Follow-Up PeriodOther1436
Post-Treatment Follow-Up PeriodPregnancy1012
Post-Treatment Follow-Up PeriodRequired Surgery/ Invasive Intervention1226
Post-Treatment Follow-Up PeriodWithdrawal by Subject82823

Baseline characteristics

CharacteristicPlacebo->Elagolix + E2/NETAElagolix->ElagolixPlacebo->ElagolixElagolix + E2/NETA->Elagolix + E2/NETATotal
Age, Customized
25 to < 30 years
3 Participants1 Participants0 Participants4 Participants8 Participants
Age, Customized
30 to < 35 years
2 Participants7 Participants4 Participants19 Participants32 Participants
Age, Customized
35 to < 40 years
10 Participants18 Participants12 Participants34 Participants74 Participants
Age, Customized
40 to < 45 years
21 Participants36 Participants20 Participants74 Participants151 Participants
Age, Customized
45 to < 50 years
16 Participants30 Participants16 Participants77 Participants139 Participants
Age, Customized
>= 50 years
6 Participants6 Participants7 Participants10 Participants29 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
7 Participants9 Participants7 Participants33 Participants56 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
51 Participants89 Participants52 Participants185 Participants377 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants2 Participants2 Participants
Race (NIH/OMB)
Asian
0 Participants1 Participants2 Participants1 Participants4 Participants
Race (NIH/OMB)
Black or African American
39 Participants70 Participants43 Participants146 Participants298 Participants
Race (NIH/OMB)
More than one race
0 Participants1 Participants1 Participants3 Participants5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants0 Participants1 Participants2 Participants
Race (NIH/OMB)
White
19 Participants25 Participants13 Participants65 Participants122 Participants
Sex: Female, Male
Female
58 Participants98 Participants59 Participants218 Participants433 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 591 / 580 / 980 / 218
other
Total, other adverse events
38 / 5926 / 5825 / 9850 / 218
serious
Total, serious adverse events
1 / 593 / 582 / 986 / 218

Outcome results

Primary

Percentage of Participants Meeting the Criteria for Responder

Percentage of responders, defined as participants who met the following conditions: * Menstrual blood loss (MBL) volume \< 80 mL during the Final Month (the last 28 days prior to and including the last dose date), and * ≥ 50% reduction in MBL volume from Baseline to the Final Month. Participants who prematurely discontinued study drug due to lack of efficacy, requires surgery or invasive intervention for treatment of uterine fibroids, or adverse events were considered non-responders regardless of whether she meets the two aforementioned responder criteria or not.

Time frame: From Month 0 (Baseline in Pivotal Study) to Final Month of Treatment Period (up through Month 6 in Extension Study)

Population: All participants who received at least 1 dose of study drug and had an assessment.

ArmMeasureValue (NUMBER)
Placebo->ElagolixPercentage of Participants Meeting the Criteria for Responder85.7 percentage of participants
Placebo->Elagolix + E2/NETAPercentage of Participants Meeting the Criteria for Responder66.7 percentage of participants
Elagolix->ElagolixPercentage of Participants Meeting the Criteria for Responder89.4 percentage of participants
Elagolix + E2/NETA->Elagolix + E2/NETAPercentage of Participants Meeting the Criteria for Responder87.9 percentage of participants
Secondary

Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment Period

Baseline MBL volume was defined as the mean of total MBL volume from all the qualified menstrual cycles during the Screening Period of the pivotal study, in which the total MBL volume is from all validated and non-validated sanitary products and the MBL volume of validated sanitary products only (excluding non-validated sanitary products) was greater than 80 mL.

Time frame: Month 0 (Baseline in Pivotal Study), Extension Study: Day 1 to 28, Day 29 to 56, Day 57 to 84, Day 85 to 112, Day 113 to 140, Day 141 to 168, Final Month of Treatment Period (up through Month 6)

Population: All participants who received at least 1 dose of study drug and had an assessment at given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Placebo->ElagolixChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodFinal Month-256.6 mLStandard Deviation 194.04
Placebo->ElagolixChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 85 to 112-235.1 mLStandard Deviation 184.87
Placebo->ElagolixChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 113 to 140-237.3 mLStandard Deviation 234
Placebo->ElagolixChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 29 to 56-210.9 mLStandard Deviation 234.01
Placebo->ElagolixChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 1 to 28-151.7 mLStandard Deviation 184.76
Placebo->ElagolixChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 141 to 168-263.8 mLStandard Deviation 199.83
Placebo->ElagolixChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 57 to 84-236.9 mLStandard Deviation 162.33
Placebo->Elagolix + E2/NETAChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 57 to 84-209.0 mLStandard Deviation 184.9
Placebo->Elagolix + E2/NETAChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 113 to 140-194.5 mLStandard Deviation 213.69
Placebo->Elagolix + E2/NETAChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 29 to 56-203.1 mLStandard Deviation 188.15
Placebo->Elagolix + E2/NETAChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 85 to 112-204.5 mLStandard Deviation 177.65
Placebo->Elagolix + E2/NETAChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 1 to 28-61.7 mLStandard Deviation 212.01
Placebo->Elagolix + E2/NETAChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 141 to 168-175.4 mLStandard Deviation 115.43
Placebo->Elagolix + E2/NETAChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodFinal Month-186.4 mLStandard Deviation 138.16
Elagolix->ElagolixChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 57 to 84-255.9 mLStandard Deviation 175.43
Elagolix->ElagolixChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodFinal Month-250.3 mLStandard Deviation 182.09
Elagolix->ElagolixChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 1 to 28-253.4 mLStandard Deviation 190.07
Elagolix->ElagolixChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 141 to 168-279.1 mLStandard Deviation 191.44
Elagolix->ElagolixChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 29 to 56-249.7 mLStandard Deviation 189.81
Elagolix->ElagolixChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 85 to 112-252.0 mLStandard Deviation 175.23
Elagolix->ElagolixChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 113 to 140-253.9 mLStandard Deviation 173.5
Elagolix + E2/NETA->Elagolix + E2/NETAChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 57 to 84-200.6 mLStandard Deviation 159.77
Elagolix + E2/NETA->Elagolix + E2/NETAChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 1 to 28-186.5 mLStandard Deviation 164.38
Elagolix + E2/NETA->Elagolix + E2/NETAChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 113 to 140-192.9 mLStandard Deviation 165.42
Elagolix + E2/NETA->Elagolix + E2/NETAChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 29 to 56-191.9 mLStandard Deviation 166.38
Elagolix + E2/NETA->Elagolix + E2/NETAChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodFinal Month-205.6 mLStandard Deviation 151.55
Elagolix + E2/NETA->Elagolix + E2/NETAChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 141 to 168-211.4 mLStandard Deviation 165.26
Elagolix + E2/NETA->Elagolix + E2/NETAChange From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 85 to 112-200.5 mLStandard Deviation 156.85
Secondary

Percentage of Participants With Baseline Hemoglobin Concentration ≤ 10.5 g/dL and an Increase From Baseline > 2 g/dL at Month 6 During the Treatment Period

Time frame: Month 6

Population: All participants who received at least 1 dose of study drug, had a baseline hemoglobin concentration of \<= 10.5 g/dL and had an assessment.

ArmMeasureValue (NUMBER)
Placebo->ElagolixPercentage of Participants With Baseline Hemoglobin Concentration ≤ 10.5 g/dL and an Increase From Baseline > 2 g/dL at Month 6 During the Treatment Period70.6 percentage of participants
Placebo->Elagolix + E2/NETAPercentage of Participants With Baseline Hemoglobin Concentration ≤ 10.5 g/dL and an Increase From Baseline > 2 g/dL at Month 6 During the Treatment Period36.4 percentage of participants
Elagolix->ElagolixPercentage of Participants With Baseline Hemoglobin Concentration ≤ 10.5 g/dL and an Increase From Baseline > 2 g/dL at Month 6 During the Treatment Period71.4 percentage of participants
Elagolix + E2/NETA->Elagolix + E2/NETAPercentage of Participants With Baseline Hemoglobin Concentration ≤ 10.5 g/dL and an Increase From Baseline > 2 g/dL at Month 6 During the Treatment Period72.5 percentage of participants
Secondary

Percentage of Participants With Suppression of Bleeding at the Final Month

Suppression of bleeding is defined as having 0 days of bleeding (spotting is allowed) during the Final Month with the interval starting from Study Day 11.

Time frame: Final Month of Treatment Period (up through Month 6)

Population: All participants who received at least 1 dose of study drug and had an assessment.

ArmMeasureValue (NUMBER)
Placebo->ElagolixPercentage of Participants With Suppression of Bleeding at the Final Month88.7 percentage of participants
Placebo->Elagolix + E2/NETAPercentage of Participants With Suppression of Bleeding at the Final Month56.0 percentage of participants
Elagolix->ElagolixPercentage of Participants With Suppression of Bleeding at the Final Month89.2 percentage of participants
Elagolix + E2/NETA->Elagolix + E2/NETAPercentage of Participants With Suppression of Bleeding at the Final Month74.8 percentage of participants
Secondary

Percent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment Period

Baseline MBL volume was defined as the mean of total MBL volume from all the qualified menstrual cycles during the Screening Period of the pivotal study, in which the total MBL volume is from all validated and non-validated sanitary products and the MBL volume of validated sanitary products only (excluding non-validated sanitary products) was greater than 80 mL.

Time frame: Month 0 (Baseline in Pivotal Study), Extension Study: Day 1 to 28, Day 29 to 56, Day 57 to 84, Day 85 to 112, Day 113 to 140, Day 141 to 168, Final Month of Treatment Period (up through Month 6)

Population: All participants who received at least 1 dose of study drug and had an assessment at given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Placebo->ElagolixPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 1 to 28-46.5 percentage changeStandard Deviation 66.57
Placebo->ElagolixPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 141 to 168-91.8 percentage changeStandard Deviation 30.77
Placebo->ElagolixPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 113 to 140-90.0 percentage changeStandard Deviation 40.38
Placebo->ElagolixPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 29 to 56-87.2 percentage changeStandard Deviation 46.33
Placebo->ElagolixPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodFinal Month-91.0 percentage changeStandard Deviation 28.74
Placebo->ElagolixPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 57 to 84-89.9 percentage changeStandard Deviation 37.62
Placebo->ElagolixPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 85 to 112-90.3 percentage changeStandard Deviation 30.26
Placebo->Elagolix + E2/NETAPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 141 to 168-79.3 percentage changeStandard Deviation 32.25
Placebo->Elagolix + E2/NETAPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 85 to 112-82.7 percentage changeStandard Deviation 32.76
Placebo->Elagolix + E2/NETAPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 57 to 84-82.9 percentage changeStandard Deviation 34.79
Placebo->Elagolix + E2/NETAPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 113 to 140-75.0 percentage changeStandard Deviation 65.97
Placebo->Elagolix + E2/NETAPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodFinal Month-78.5 percentage changeStandard Deviation 36.76
Placebo->Elagolix + E2/NETAPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 29 to 56-79.4 percentage changeStandard Deviation 41.8
Placebo->Elagolix + E2/NETAPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 1 to 28-28.2 percentage changeStandard Deviation 72.69
Elagolix->ElagolixPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 85 to 112-95.2 percentage changeStandard Deviation 19.38
Elagolix->ElagolixPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 1 to 28-94.0 percentage changeStandard Deviation 24.9
Elagolix->ElagolixPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 29 to 56-93.3 percentage changeStandard Deviation 28.77
Elagolix->ElagolixPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 57 to 84-96.9 percentage changeStandard Deviation 16.88
Elagolix->ElagolixPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 113 to 140-97.7 percentage changeStandard Deviation 13.01
Elagolix->ElagolixPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 141 to 168-99.2 percentage changeStandard Deviation 4.31
Elagolix->ElagolixPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodFinal Month-96.6 percentage changeStandard Deviation 18.29
Elagolix + E2/NETA->Elagolix + E2/NETAPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 57 to 84-90.6 percentage changeStandard Deviation 32.6
Elagolix + E2/NETA->Elagolix + E2/NETAPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodFinal Month-90.8 percentage changeStandard Deviation 33.01
Elagolix + E2/NETA->Elagolix + E2/NETAPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 141 to 168-89.7 percentage changeStandard Deviation 36.67
Elagolix + E2/NETA->Elagolix + E2/NETAPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 29 to 56-87.8 percentage changeStandard Deviation 43.17
Elagolix + E2/NETA->Elagolix + E2/NETAPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 1 to 28-87.7 percentage changeStandard Deviation 36.24
Elagolix + E2/NETA->Elagolix + E2/NETAPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 113 to 140-87.5 percentage changeStandard Deviation 40.67
Elagolix + E2/NETA->Elagolix + E2/NETAPercent Change From Baseline in MBL Volume For Each 28-Day Interval and Final Month of the Treatment PeriodStudy Day 85 to 112-91.2 percentage changeStandard Deviation 28.42

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026