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Trial · NCT03049735

LIBERTY 1: Efficacy & Safety Study of Relugolix in Women With Heavy Menstrual Bleeding Associated With Uterine Fibroids

NCT03049735, Phase 3, Completed, Myovant Sciences GmbH; results first posted 2022-04-19

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. LIBERTY 1: Efficacy & Safety Study of Relugolix in Women With Heavy Menstrual Bleeding Associated With Uterine Fibroids. Trials, record NCT03049735. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03049735

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
LIBERTY 1: Efficacy & Safety Study of Relugolix in Women With Heavy Menstrual Bleeding Associated With Uterine Fibroids
NCT number
NCT03049735
Status
Completed
Phases
Phase 3
Enrollment
388 participants, actual
Lead sponsor
Myovant Sciences GmbH
Conditions
Heavy Menstrual Bleeding, Uterine Fibroid
Interventions
Relugolix, Estradiol/norethindrone acetate, Estradiol/norethindrone acetate placebo, Relugolix placebo
First posted
2017-02-10
Last updated
2022-04-19
Other registries' IDs
eudract:2016-003727-27
Results first posted
2022-04-19
Limitations and caveats
None reported

Source ClinicalTrials.gov

Registered outcomes44

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryPercentage Of Participants Who Achieved A Menstrual Blood Loss (MBL) Volume Of < 80 mL And A ≥ 50% Reduction From Baseline MBL Volume With Relugolix Plus E2/NETAFrom Baseline up to last 35 days of treatment (up to Week 24)
A responder was a participant who had MBL volume of \< 80 mL and at least a 50% reduction from baseline MBL volume over the last 35 days of treatment (up to Week 24). All returned feminine products collected at each clinical visit were analyzed by the alkaline hematin method to obtain the MBL volume. MBL volume was measured over the Week 24/early termination feminine product collection interval (up to 35 days prior to the last dose of treatment). The percentage of participants who were responders are presented. As per the objective of the study, the pre-specified primary efficacy analyses compared relugolix plus E2/NETA with placebo. Therefore, only relugolix plus E2/NETA and placebo arms are presented.
SecondaryPercentage Of Participants With Amenorrhea Over The Last 35 Days Of TreatmentFrom Baseline up to last 35 days of treatment (up to Week 24)
Amenorrhea was defined as meeting 1 of the following criteria for 2 consecutive visits: 1. No feminine product returned due to reported amenorrhea; 2. No feminine product returned due to reports of spotting/negligible bleeding coupled with electronic diary (eDiary) data indicating infrequent non-cyclic bleeding/spotting; 3. Feminine product collection with a negligible observed MBL volume coupled with eDiary data indicating infrequent non-cyclic bleeding/spotting. As per the objective of the study, the pre-specified secondary efficacy analyses compared relugolix plus E2/NETA with placebo. Therefore, only relugolix plus E2/NETA and placebo arms are presented.
SecondaryPercent Change From Baseline At Week 24 In MBL VolumeBaseline, Week 24
MBL volume was measured using the alkaline hematin method. As per the objective of the study, the pre-specified secondary efficacy analyses compared relugolix plus E2/NETA with placebo. Therefore, only relugolix plus E2/NETA and placebo arms are presented.
SecondaryPercentage Of Participants With A Hemoglobin Level ≤ 10.5 g/dL At Baseline Who Achieved An Increase Of > 2 g/dL From Baseline At Week 24From Baseline up to Week 24
Blood samples were collected from participants for hemoglobin measurements. Percentages are based on number of participants with hemoglobin ≤ 10.5 gram (g)/deciliter (dL) at Baseline and reported at Week 24. As per the objective of the study, the pre-specified secondary efficacy analyses compared relugolix plus E2/NETA with placebo. Therefore, only relugolix plus E2/NETA with placebo arms are presented.
SecondaryPercentage Of Participants With A Maximum NRS Score ≤ 1 For Uterine Fibroid-Associated Pain Over The Last 35 Days Of TreatmentFrom Baseline up to Week 24
Uterine fibroid-associated pain was assessed by a pain numerical rating scale (NRS). The pain NRS is a validated, single-item, self-reported measure, which asks respondents to rank their pain on an 11-point scale as follows: 0 (no pain), 1 to 3 (mild pain), 4 to 6 (moderate pain), and 7 to 10 (severe pain). Participants were asked to document, in an e-Diary, the worst pain associated with their uterine fibroids that they experienced during the last 24 hours, every day until the end of study drug administration. Pain evaluable participants, defined as those who had maximum NRS score ≥ 4 at Baseline and had at least 28 days (80% of the last 35 days of treatment) of pain scores recorded in the e-Diary, were analyzed. As per the objective of the study, the pre-specified secondary efficacy analyses compared relugolix plus E2/NETA with placebo. Therefore, only relugolix plus E2/NETA and placebo arms are presented.
SecondaryPercent Change From Baseline At Week 24 In Primary Uterine Fibroid VolumeBaseline, Week 24
The volume of the primary uterine fibroid was measured by transvaginal or transabdominal ultrasound. As per the objective of the study, the pre-specified secondary efficacy analyses compared relugolix plus E2/NETA with placebo. Therefore, only relugolix plus E2/NETA and placebo arms are presented.
SecondaryPercent Change From Baseline At Week 24 In Uterine VolumeBaseline, Week 24
The volume of the uterus was measured by transvaginal or transabdominal ultrasound. As per the objective of the study, the pre-specified secondary efficacy analyses compared relugolix plus E2/NETA with placebo. Therefore, only relugolix plus E2/NETA and placebo arms are presented.
SecondaryChange From Baseline At Week 24 In UFS-QoL Bleeding And Pelvic Discomfort Scale Score As Measured By The UFS-QoL (Q1, Q2, Q5)Baseline, Week 24
The Uterine Fibroid Symptom and Health-Related Quality of Life (UFS-QoL) Bleeding and Pelvic Discomfort (BPD) Scale has been derived from the UFS-QoL Symptoms Scale. The scale consists of the following 3 symptoms proximal to uterine fibroids: Heavy bleeding during your menstrual period (Question \[Q\] 1), passing blood clots during your menstrual period (Q2), and feeling tightness or pressure in your pelvic area (Q5). raw scores were transformed to a normalized score: Transformed Score = \[(Actual raw score - lowest possible raw score)/(Possible raw score range)\] \* 100 Transformed score ranges from 0 to 100 based on Likert scale (None of time, a little of time, some of the time, most of the time and all of the time). Lower score indicates minimal symptom severity and higher score indicates maximum symptom severity. As per the study objective, the pre-specified secondary efficacy analyses compared relugolix plus E2/NETA with placebo. Therefore, only these two arms are presented.
SecondaryPercent Change From Baseline At Week 12 In Bone Mineral Density At The Lumbar Spine (L1 To L4), As Assessed By DXABaseline, Week 12
Bone mineral density (BMD) was assessed by dual-energy x-ray absorptiometry (DXA) at the lumbar spine (L1, L2, L3, and L4) at Baseline and at Week 12. The scans were read by the central radiology laboratory in accordance with the imaging charter. The same DXA machine was used at the local imaging center at each site and operated in the same scan mode for all images procured for an individual participant. All images were submitted for central reading. The central radiology laboratory collected and evaluated all DXA scans for acceptability and measured BMD. As per the objective of the study, the pre-specified secondary analyses compared relugolix plus E2/NETA with relugolix plus delayed E2/NETA at Week 12 and are presented below.
SecondaryPercent Change From Baseline At Week 24 In Bone Mineral Density At The Lumbar Spine (L1 To L4), Total Hip, And Femoral NeckBaseline, Week 24
BMD was assessed by DXA at the lumbar spine (L1, L2, L3, and L4), total hip, and femoral neck at Baseline and at Week 24. The scans were read by the central radiology laboratory in accordance with the imaging charter. The same DXA machine was used at the local imaging center at each site and operated in the same scan mode for all images procured for an individual participant. All images were submitted for central reading. The central radiology laboratory collected and evaluated all DXA scans for acceptability and measured BMD. As per the objective of the study, the pre-specified secondary efficacy analyses compared relugolix plus E2/NETA with placebo. Therefore, only relugolix plus E2/NETA and placebo arms are presented.

Outcomes44

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercentage Of Participants Who Achieved A Menstrual Blood Loss (MBL) Volume Of < 80 mL And A ≥ 50% Reduction From Baseline MBL Volume With Relugolix Plus E2/NETAFrom Baseline up to last 35 days of treatment (up to Week 24)Modified Intention-to-Treat Population: All participants who were randomized to treatment and who received at least 1 dose of study drug.Percentage of participantsNUMBER
SECONDARYPercentage Of Participants With Amenorrhea Over The Last 35 Days Of TreatmentFrom Baseline up to last 35 days of treatment (up to Week 24)All participants who were randomized to treatment and who received at least 1 dose of study drug.percentage of participantsNUMBER
SECONDARYPercent Change From Baseline At Week 24 In MBL VolumeBaseline, Week 24All participants who were randomized to treatment and who received at least 1 dose of study drug and had analyzable data for MBL volume at the specified timepoints.percent changeLEAST_SQUARES_MEAN
SECONDARYPercentage Of Participants With A Hemoglobin Level ≤ 10.5 g/dL At Baseline Who Achieved An Increase Of > 2 g/dL From Baseline At Week 24From Baseline up to Week 24All participants who were randomized to treatment and who received at least 1 dose of study drug and had analyzable data for hemoglobin levels at the specified timepoints.Percentage of participantsNUMBER
SECONDARYPercentage Of Participants With A Maximum NRS Score ≤ 1 For Uterine Fibroid-Associated Pain Over The Last 35 Days Of TreatmentFrom Baseline up to Week 24All participants who were randomized to treatment and who received at least 1 dose of study drug and had analyzable data for uterine fibroid-associated pain at the specified timepoints.Percentage of participantsNUMBER
SECONDARYPercent Change From Baseline At Week 24 In Primary Uterine Fibroid VolumeBaseline, Week 24All participants who were randomized to treatment and who received at least 1 dose of study drug and had analyzable data for primary uterine fibroid volume at the specified timepoints.Percent changeLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline At Week 24 In Uterine VolumeBaseline, Week 24All participants who were randomized to treatment and who received at least 1 dose of study drug and had analyzable data for uterine volume at the specified timepoints.percent changeLEAST_SQUARES_MEAN
SECONDARYChange From Baseline At Week 24 In UFS-QoL Bleeding And Pelvic Discomfort Scale Score As Measured By The UFS-QoL (Q1, Q2, Q5)Baseline, Week 24All participants who were randomized to treatment and who received at least 1 dose of study drug and had analyzable data for UFS-QoL BPD scores at the specified timepoints.units on a scaleLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline At Week 12 In Bone Mineral Density At The Lumbar Spine (L1 To L4), As Assessed By DXABaseline, Week 12All participants who were randomized to treatment and who received at least 1 dose of study drug and had analyzable data for BMD at lumbar spine (L1 to L4) at the specified timepoints.percent changeLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline At Week 24 In Bone Mineral Density At The Lumbar Spine (L1 To L4), Total Hip, And Femoral NeckBaseline, Week 24
All participants who were randomized to treatment and who received at least 1 dose of study drug and had analyzable data for BMD at the lumbar spine (L1 to L4), total hip, and femoral neck at the specified timepoints.
percent changeLEAST_SQUARES_MEAN

Results by group102

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Percentage Of Participants Who Achieved A Menstrual Blood Loss (MBL) Volume Of < 80 mL And A ≥ 50% Reduction From Baseline MBL Volume With Relugolix Plus E2/NETARelugolix Plus E2/NETA (Group A)73.495% Confidence Interval 64.91 to 80.85Percentage of participants
Percentage Of Participants Who Achieved A Menstrual Blood Loss (MBL) Volume Of < 80 mL And A ≥ 50% Reduction From Baseline MBL Volume With Relugolix Plus E2/NETAPlacebo (Group C)18.995% Confidence Interval 12.50 to 26.80Percentage of participants
Percentage Of Participants With Amenorrhea Over The Last 35 Days Of TreatmentRelugolix Plus E2/NETA (Group A)52.3495% Confidence Interval 43.34 to 61.24percentage of participants
Percentage Of Participants With Amenorrhea Over The Last 35 Days Of TreatmentPlacebo (Group C)5.5195% Confidence Interval 2.24 to 11.03percentage of participants
Percent Change From Baseline At Week 24 In MBL VolumeRelugolix Plus E2/NETA (Group A)-84.395% Confidence Interval -93.5 to -75.0percent change
Percent Change From Baseline At Week 24 In MBL VolumePlacebo (Group C)-23.295% Confidence Interval -32.2 to -14.1percent change
Percentage Of Participants With A Hemoglobin Level ≤ 10.5 g/dL At Baseline Who Achieved An Increase Of > 2 g/dL From Baseline At Week 24Relugolix Plus E2/NETA (Group A)50.095% Confidence Interval 31.30 to 68.70Percentage of participants
Percentage Of Participants With A Hemoglobin Level ≤ 10.5 g/dL At Baseline Who Achieved An Increase Of > 2 g/dL From Baseline At Week 24Placebo (Group C)21.7495% Confidence Interval 7.46 to 43.70Percentage of participants
Percentage Of Participants With A Maximum NRS Score ≤ 1 For Uterine Fibroid-Associated Pain Over The Last 35 Days Of TreatmentRelugolix Plus E2/NETA (Group A)43.1095% Confidence Interval 30.16 to 56.77Percentage of participants
Percentage Of Participants With A Maximum NRS Score ≤ 1 For Uterine Fibroid-Associated Pain Over The Last 35 Days Of TreatmentPlacebo (Group C)10.1495% Confidence Interval 4.18 to 19.79Percentage of participants

Participant flow12

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDRelugolix Plus Estradiol (E2)/ Norethindrone Acetate (NETA) (Group A)128
Overall StudySTARTEDRelugolix Plus Delayed E2/NETA (Group B)132
Overall StudySTARTEDPlacebo (Group C)128
Overall StudyReceived at Least 1 Dose of Study DrugRelugolix Plus Estradiol (E2)/ Norethindrone Acetate (NETA) (Group A)128
Overall StudyReceived at Least 1 Dose of Study DrugRelugolix Plus Delayed E2/NETA (Group B)132
Overall StudyReceived at Least 1 Dose of Study DrugPlacebo (Group C)127
Overall StudyCOMPLETEDRelugolix Plus Estradiol (E2)/ Norethindrone Acetate (NETA) (Group A)100
Overall StudyCOMPLETEDRelugolix Plus Delayed E2/NETA (Group B)103
Overall StudyCOMPLETEDPlacebo (Group C)105
Overall StudyNOT COMPLETEDRelugolix Plus Estradiol (E2)/ Norethindrone Acetate (NETA) (Group A)28

Adverse events60

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherHot flushVascular disordersRelugolix Plus E2/NETA (Group A)1412814
otherHot flushVascular disordersRelugolix Plus Delayed E2/NETA (Group B)4713248
otherHot flushVascular disordersPlacebo (Group C)1012710
otherHypertensionVascular disordersRelugolix Plus E2/NETA (Group A)71288
otherHypertensionVascular disordersRelugolix Plus Delayed E2/NETA (Group B)31325
otherHypertensionVascular disordersPlacebo (Group C)01270
otherHeadacheNervous system disordersRelugolix Plus E2/NETA (Group A)1412815
otherHeadacheNervous system disordersRelugolix Plus Delayed E2/NETA (Group B)1413218
otherHeadacheNervous system disordersPlacebo (Group C)1912720
otherArthralgiaMusculoskeletal and connective tissue disordersRelugolix Plus E2/NETA (Group A)41286

Adverse event totals9

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityRelugolix Plus E2/NETA (Group A)0128
Total, all-cause mortalityRelugolix Plus Delayed E2/NETA (Group B)0132
Total, all-cause mortalityPlacebo (Group C)0127
Total, other adverse eventsRelugolix Plus E2/NETA (Group A)32128
Total, other adverse eventsRelugolix Plus Delayed E2/NETA (Group B)62132
Total, other adverse eventsPlacebo (Group C)33127
Total, serious adverse eventsRelugolix Plus E2/NETA (Group A)7128
Total, serious adverse eventsRelugolix Plus Delayed E2/NETA (Group B)3132
Total, serious adverse eventsPlacebo (Group C)2127

Papers8

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
33596357DERIVEDPubMed
35415708DERIVEDPubMed
35675604DERIVEDPubMed
36357960DERIVEDPubMed
37183454DERIVEDPubMed
37477173DERIVEDPubMed
37863160DERIVEDPubMed
39466126DERIVEDPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons7

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
Relugolix Plus E2/NETA (Group A) vs Placebo (Group C): Number Of Participants With Hemoglobin Increase Of ≥ 1 g/dL From Baseline To Week 24 Among Those With Below Lower Limit Of NormalTrial comparisons
Relugolix Plus E2/NETA (Group A) vs Placebo (Group C): Sustained Amenorrhea Rate (No Or Negligible Bleeding)Trial comparisons
Relugolix Plus E2/NETA (Group A) vs Placebo (Group C): Number Of Participants With A ≥ 30% Reduction in NRS Score From Baseline to Last 35 Days of Treatment Who Had Maximum Pain Scores ≥ 4 At BaselineTrial comparisons
Relugolix Plus E2/NETA (Group A) vs Placebo (Group C): Number Of Responders With At Least 20 Points Decrease In UFS-QoL Bleeding And Pelvic Discomfort Scale ScoreTrial comparisons
Relugolix Plus E2/NETA (Group A) vs Placebo (Group C): Number Of Participants Who Achieved A Maximum NRS Score ≤ 1 For Uterine Fibroid-associated Pain Over The Last 35 Days Of Treatment Who Had Maximum Pain Scores ≥ 4 During The 35 Days Prior To Randomization
Trial comparisons
Relugolix Plus E2/NETA (Group A) vs Placebo (Group C): Number Of Participants With Hemoglobin ≤ 10.5 g/dL At Baseline And Achieved An Increase Of > 2 g/dL At Week 24Trial comparisons
Relugolix Plus E2/NETA (Group A) vs Placebo (Group C): Number Of Responders With At Least 20 Points Increase From Baseline At Week 24 In UFS-QoL Revised Activities Scale ScoreTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

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GET https://conductscience.org/api/trials/v1/NCT03049735/registered?page=2