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Trial · NCT03749109

Quinagolide Vaginal Ring on Lesion Reduction Assessed by MRI in Women With Endometriosis/Adenomyosis

NCT03749109, Phase 2, Completed, Ferring Pharmaceuticals; results first posted 2022-09-07

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Quinagolide Vaginal Ring on Lesion Reduction Assessed by MRI in Women With Endometriosis/Adenomyosis. Trials, record NCT03749109. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03749109

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Trial

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

Title
Quinagolide Vaginal Ring on Lesion Reduction Assessed by MRI in Women With Endometriosis/Adenomyosis
NCT number
NCT03749109
Status
Completed
Phases
Phase 2
Enrollment
67 participants, actual
Lead sponsor
Ferring Pharmaceuticals
Conditions
Endometriosis
Interventions
Quinagolide 1080 µg, Placebo
First posted
2018-11-21
Last updated
2023-08-07
Results first posted
2022-09-07

Source ClinicalTrials.gov

Registered outcomes46

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

ListOutcomeTime frameDescription
PrimaryChanges in the Sizes (mm) of Endometrioma, Deep Infiltrating Endometriosis (DIE) and Adenomyosis Lesions Summed by Type on Magnetic Resonance (MR) Images at Cycle 4At baseline and at menstrual cycle 4 (around 5 months, each cycle is approximately 28 days)
The MRI examination was performed on a high resolution 3T machine at screening and at end-of-treatment / cycle 4. At screening, every measurable lesion (defined as ≥10 mm in size) of any type was recorded and was summed up by type for primary analysis.
SecondaryPercentage of Changes in the Sizes of Endometrioma, DIE and Adenomyosis Lesions Summed by Type on MR Images at Cycle 4At baseline and at menstrual cycle 4 (around 5 months, each cycle is approximately 28 days)The MRI examination was performed on a high resolution 3T machine at screening and at end-of-treatment / cycle 4.
SecondaryProportion of Lesions by Type With a Decrease in a Size of ≥5 mm on MR Images at Cycle 4At baseline and at menstrual cycle 4 (around 5 months, each cycle is approximately 28 days)The MRI examination was performed on a high resolution 3T machine at screening and at end-of-treatment / cycle 4.
SecondaryProportion of Subjects With a Lesion of Any Type Decreased in a Size of ≥5 mm on MR Images at Cycle 4At baseline and at menstrual cycle 4 (around 5 months, each cycle is approximately 28 days)The MRI examination was performed on a high resolution 3T machine at screening and at end-of-treatment / cycle 4.
SecondaryNumber of New or Disappearing Endometrioma, DIE and Adenomyosis Lesions Summed by Type on MR Images at Cycle 4At baseline and at menstrual cycle 4 (around 5 months, each cycle is approximately 28 days)The MRI examination was performed on a high resolution 3T machine at screening and at end-of-treatment / cycle 4.
SecondaryChanges in the Volumes (mm3) of Endometrioma and DIE Lesions Summed by Type on MR Images at Cycle 4At baseline and at menstrual cycle 4 (around 5 months, each cycle is approximately 28 days)The MRI examination was performed on a high resolution 3T machine at screening and at end-of-treatment / cycle 4.
SecondaryChanges in the Sizes of Endometrioma Assessed by Transvaginal Ultrasound (TVU) at Cycle 4At baseline and at menstrual cycle 4 (around 4 months, each cycle is approximately 28 days)Transvaginal ultrasound (TVU) will be performed, preferably by the same sonographer, at the screening visit and at end-of-treatment / cycle 4.
SecondaryChanges in the Mean Individual and Total Symptom and Sign Severity of Scores of the Biberoglu and Behrman (B&B) Scale at Cycle 4At baseline and at menstrual cycle 4 (around 4 months, each cycle is approximately 28 days)
B\&B scale is a used scale for endometriosis that consists of two parts, with the first part evaluating symptoms (i.e. different types of pain) and the second part evaluating physical signs. In the first part, the subject was asked to grade her pelvic pain (item A), dysmenorrhea (item B) and dyspareunia (item C) during the last menstrual cycle as none, mild, moderate or severe, corresponding to a score of 0-3. In the second part, the investigator graded the subject's pelvic tenderness (item D) and induration (item E) based on findings from a pelvic examination as none, mild, moderate or severe, corresponding to a score of 0-3. The total symptom and sign severity score was the sum of all five scores, i.e. A+B+C+D+E. The score can be between 0 and 15.
SecondaryChanges in the Numerical Rating Scale (NRS) Pain Scores Per Cycle at Cycles 1, 2, 3 and 4At baseline and at menstrual cycles 1 (~1 month), 2 (~2 months), 3 (~3 months) and 4 (~4 months)
Assessed by Subjects. NRS is a 11-point scale, with 0 indicating no pain and 10 indicating the worst imaginable pain. Subjects were asked to score the worst pain in relation to endometriosis / adenomyosis on the NRS based on a recall of their experiences during the following timeframes: * during the last menstrual cycle * during the menstrual period of the last menstrual cycle * during the non-menstrual period of the last menstrual cycle
SecondaryChanges in the Endometriosis Health Profile-30 (EHP-30) Scores at Cycles 2 and 4At baseline, at menstrual cycles 2 (~2 months) and 4 (~4 months)
EHP-30 is a quality-of-life questionnaire. Score ranges from 0-100 and lower score denotes improvement. It consists of 30 questions measuring the frequency of the endometriosis impact on their quality of life during the past four weeks, with five options of never, rarely, sometimes, often and always.

Outcomes46

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYChanges in the Sizes (mm) of Endometrioma, Deep Infiltrating Endometriosis (DIE) and Adenomyosis Lesions Summed by Type on Magnetic Resonance (MR) Images at Cycle 4At baseline and at menstrual cycle 4 (around 5 months, each cycle is approximately 28 days)
All analyses for primary and secondary efficacy endpoints are presented by lesion type. This means one subject can be included in multiple lesion groups, depending on the type of lesion(s) with a size of ≥10 mm present at baseline. Thus, the FAS population by lesion type includes 47 subjects in the endometrioma group, 45 subjects in the DIE group, and 36 subjects in the adenomyosis group. The primary and secondary efficacy results are presented for these subjects unless otherwise specified.
mmLEAST_SQUARES_MEAN
SECONDARYPercentage of Changes in the Sizes of Endometrioma, DIE and Adenomyosis Lesions Summed by Type on MR Images at Cycle 4At baseline and at menstrual cycle 4 (around 5 months, each cycle is approximately 28 days)
All analyses for primary and secondary efficacy endpoints are presented by lesion type. This means one subject can be included in multiple lesion groups, depending on the type of lesion(s) with a size of ≥10 mm present at baseline. Thus, the FAS population by lesion type includes 47 subjects in the endometrioma group, 45 subjects in the DIE group, and 36 subjects in the adenomyosis group. The primary and secondary efficacy results are presented for these subjects unless otherwise specified.
Percentage of changes in the sizeMEAN
SECONDARYProportion of Lesions by Type With a Decrease in a Size of ≥5 mm on MR Images at Cycle 4At baseline and at menstrual cycle 4 (around 5 months, each cycle is approximately 28 days)
All analyses for primary and secondary efficacy endpoints are presented by lesion type. This means one subject can be included in multiple lesion groups, depending on the type of lesion(s) with a size of ≥10 mm present at baseline. Thus, the FAS population by lesion type includes 47 subjects in the endometrioma group, 45 subjects in the DIE group, and 36 subjects in the adenomyosis group. The primary and secondary efficacy results are presented for these subjects unless otherwise specified.
Percentage of lesionsNUMBER
SECONDARYProportion of Subjects With a Lesion of Any Type Decreased in a Size of ≥5 mm on MR Images at Cycle 4At baseline and at menstrual cycle 4 (around 5 months, each cycle is approximately 28 days)
All analyses for primary and secondary efficacy endpoints are presented by lesion type. This means one subject can be included in multiple lesion groups, depending on the type of lesion(s) with a size of ≥10 mm present at baseline. Thus, the FAS population by lesion type includes 47 subjects in the endometrioma group, 45 subjects in the DIE group, and 36 subjects in the adenomyosis group. The primary and secondary efficacy results are presented for these subjects unless otherwise specified.
Percentage of subjectsNUMBER
SECONDARYNumber of New or Disappearing Endometrioma, DIE and Adenomyosis Lesions Summed by Type on MR Images at Cycle 4At baseline and at menstrual cycle 4 (around 5 months, each cycle is approximately 28 days)
All analyses for primary and secondary efficacy endpoints are presented by lesion type. This means one subject can be included in multiple lesion groups, depending on the type of lesion(s) with a size of ≥10 mm present at baseline. Thus, the FAS population by lesion type includes 47 subjects in the endometrioma group, 45 subjects in the DIE group, and 36 subjects in the adenomyosis group. The primary and secondary efficacy results are presented for these subjects unless otherwise specified.
LesionsNUMBER
SECONDARYChanges in the Volumes (mm3) of Endometrioma and DIE Lesions Summed by Type on MR Images at Cycle 4At baseline and at menstrual cycle 4 (around 5 months, each cycle is approximately 28 days)
All analyses for primary and secondary efficacy endpoints are presented by lesion type. This means one subject can be included in multiple lesion groups, depending on the type of lesion(s) with a size of ≥10 mm present at baseline. Thus, the FAS population by lesion type includes 47 subjects in the endometrioma group, and 45 subjects in the DIE group. The primary and secondary efficacy results are presented for these subjects unless otherwise specified.
mm^3LEAST_SQUARES_MEAN
SECONDARYChanges in the Sizes of Endometrioma Assessed by Transvaginal Ultrasound (TVU) at Cycle 4At baseline and at menstrual cycle 4 (around 4 months, each cycle is approximately 28 days)Subjects analyzed for this endpoint represent subjects who were evaluable for this outcome measure.mmLEAST_SQUARES_MEAN
SECONDARYChanges in the Mean Individual and Total Symptom and Sign Severity of Scores of the Biberoglu and Behrman (B&B) Scale at Cycle 4At baseline and at menstrual cycle 4 (around 4 months, each cycle is approximately 28 days)
All analyses for primary and secondary efficacy endpoints are presented by lesion type. This means one subject can be included in multiple lesion groups, depending on the type of lesion(s) with a size of ≥10 mm present at baseline. Thus, the FAS population by lesion type includes 47 subjects in the endometrioma group, 45 subjects in the DIE group, and 36 subjects in the adenomyosis group. The primary and secondary efficacy results are presented for these subjects unless otherwise specified.
score on a scaleMEAN
SECONDARYChanges in the Numerical Rating Scale (NRS) Pain Scores Per Cycle at Cycles 1, 2, 3 and 4At baseline and at menstrual cycles 1 (~1 month), 2 (~2 months), 3 (~3 months) and 4 (~4 months)
All analyses for primary and secondary efficacy endpoints are presented by lesion type. This means one subject can be included in multiple lesion groups, depending on the type of lesion(s) with a size of ≥10 mm present at baseline. Thus, the FAS population by lesion type includes 47 subjects in the endometrioma group, 45 subjects in the DIE group, and 36 subjects in the adenomyosis group. The primary and secondary efficacy results are presented for these subjects unless otherwise specified.
score on a scaleMEAN
SECONDARYChanges in the Endometriosis Health Profile-30 (EHP-30) Scores at Cycles 2 and 4At baseline, at menstrual cycles 2 (~2 months) and 4 (~4 months)
All analyses for primary and secondary efficacy endpoints are presented by lesion type. This means one subject can be included in multiple lesion groups, depending on the type of lesion(s) with a size of ≥10 mm present at baseline. Thus, the FAS population by lesion type includes 47 subjects in the endometrioma group, 45 subjects in the DIE group, and 36 subjects in the adenomyosis group. The primary and secondary efficacy results are presented for these subjects unless otherwise specified.
Score on a scaleMEAN

Results by group268

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

OutcomeGroupCategoryValueSpreadUnits
Changes in the Sizes (mm) of Endometrioma, Deep Infiltrating Endometriosis (DIE) and Adenomyosis Lesions Summed by Type on Magnetic Resonance (MR) Images at Cycle 4Quinagolide 1080 µgEndometrioma-0.20Standard Error 4.34mm
Changes in the Sizes (mm) of Endometrioma, Deep Infiltrating Endometriosis (DIE) and Adenomyosis Lesions Summed by Type on Magnetic Resonance (MR) Images at Cycle 4PlaceboEndometrioma-1.94Standard Error 4.48mm
Changes in the Sizes (mm) of Endometrioma, Deep Infiltrating Endometriosis (DIE) and Adenomyosis Lesions Summed by Type on Magnetic Resonance (MR) Images at Cycle 4Quinagolide 1080 µgDIE2.41Standard Error 2.52mm
Changes in the Sizes (mm) of Endometrioma, Deep Infiltrating Endometriosis (DIE) and Adenomyosis Lesions Summed by Type on Magnetic Resonance (MR) Images at Cycle 4PlaceboDIE-0.94Standard Error 2.03mm
Changes in the Sizes (mm) of Endometrioma, Deep Infiltrating Endometriosis (DIE) and Adenomyosis Lesions Summed by Type on Magnetic Resonance (MR) Images at Cycle 4Quinagolide 1080 µgAdenomyosis-3.10Standard Error 3.75mm
Changes in the Sizes (mm) of Endometrioma, Deep Infiltrating Endometriosis (DIE) and Adenomyosis Lesions Summed by Type on Magnetic Resonance (MR) Images at Cycle 4PlaceboAdenomyosis-3.43Standard Error 3.87mm
Percentage of Changes in the Sizes of Endometrioma, DIE and Adenomyosis Lesions Summed by Type on MR Images at Cycle 4Quinagolide 1080 µgEndometrioma15.64Standard Deviation 70.12Percentage of changes in the size
Percentage of Changes in the Sizes of Endometrioma, DIE and Adenomyosis Lesions Summed by Type on MR Images at Cycle 4PlaceboEndometrioma-6.83Standard Deviation 44.46Percentage of changes in the size
Percentage of Changes in the Sizes of Endometrioma, DIE and Adenomyosis Lesions Summed by Type on MR Images at Cycle 4Quinagolide 1080 µgDIE7.67Standard Deviation 15.22Percentage of changes in the size
Percentage of Changes in the Sizes of Endometrioma, DIE and Adenomyosis Lesions Summed by Type on MR Images at Cycle 4PlaceboDIE5.81Standard Deviation 37.73Percentage of changes in the size

Participant flow6

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDQuinagolide 1080 µg35
Overall StudySTARTEDPlacebo32
Overall StudyCOMPLETEDQuinagolide 1080 µg33
Overall StudyCOMPLETEDPlacebo32
Overall StudyNOT COMPLETEDQuinagolide 1080 µg2
Overall StudyNOT COMPLETEDPlacebo0

Adverse events32

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherNauseaGastrointestinal disordersQuinagolide 1080 µg3353
otherNauseaGastrointestinal disordersPlacebo2323
otherAbdominal distensionGastrointestinal disordersQuinagolide 1080 µg2352
otherAbdominal distensionGastrointestinal disordersPlacebo1321
otherRectal HaemorrhageGastrointestinal disordersQuinagolide 1080 µg0350
otherRectal HaemorrhageGastrointestinal disordersPlacebo2324
otherFatigueGeneral disordersQuinagolide 1080 µg1351
otherFatigueGeneral disordersPlacebo2322
otherPeripheral swellingGeneral disordersQuinagolide 1080 µg2352
otherPeripheral swellingGeneral disordersPlacebo1321

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityQuinagolide 1080 µg035
Total, all-cause mortalityPlacebo032
Total, other adverse eventsQuinagolide 1080 µg2035
Total, other adverse eventsPlacebo2032
Total, serious adverse eventsQuinagolide 1080 µg135
Total, serious adverse eventsPlacebo032

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
40188683DERIVED

Source PubMed

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 comparisons2

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

ComparisonSource
Quinagolide 1080 µg vs Placebo: deaths from any causeTrial comparisons
Quinagolide 1080 µg vs Placebo: serious adverse eventsTrial 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.

GET https://conductscience.org/api/trials/v1/NCT03749109

GET https://conductscience.org/api/trials/v1/NCT03749109/registered?page=2