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Exploratory Study Assessing Synchronisation of Egg Sacs With Degarelix

A Randomised, Assessor-blind, Parallel Groups, Multi-centre, Exploratory Study Assessing the Impact of Subcutaneous Administration of Degarelix 2.5 mg on Synchronisation of Follicle Cohort Compared to Placebo and Evaluating the Effects of Degarelix 2.5 mg Started in the Mid-luteal or Early Follicular Phase on Endometrial Receptivity Compared to a Fixed Gonadotrophin Releasing Hormone Antagonist Protocol in Oocyte Donors Undergoing Controlled Ovarian Hyperstimulation for Assisted Reproductive Technologies

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00434122
Enrollment
85
Registered
2007-02-12
Start date
2007-03-31
Completion date
2007-12-31
Last updated
2011-06-02

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

Conditions

Infertility, Female

Keywords

Assisted Reproductive Technology (ART), oocyte donors undergoing controlled ovarian hyperstimulation for assisted reproductive technologies

Brief summary

The main purpose of this clinical research study is to investigate if degarelix can synchronise the growth of the egg sacs in the ovaries and if degarelix has any effect on the lining of the womb.

Detailed description

For the primary end-point (data collected on Stimulation Day 1), the study will compare degarelix 2.5 mg administered in the mid-luteal phase to placebo administered in the mid-luteal phase. After Stimulation Day 1 the placebo group will be split into two groups: a degarelix 2.5 mg follicular group and a ganirelix 0.25 mg group.

Interventions

DRUGDegarelix mid-luteal, 2.5 mg

Degarelix 2.5 mg will be injected subcutaneously (SC) 7 days after luteinizing hormone (LH) peak and on Stimulation Day 6. Placebo will be injected SC on Stimulation Day 1.

DRUGPlacebo

Placebo will be injected subcutaneously (SC) 7 days after luteinizing hormone (LH) peak. Degarelix 2.5 mg will be injected SC on Stimulation Day 1 and Stimulation Day 6. or Placebo will be injected SC 7 days after LH peak and on Stimulation Day 1. Ganirelix 0.25 mg will be injected SC daily from Stimulation Day 6 until the last stimulation day.

Sponsors

Ferring Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Investigator)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 35 Years
Healthy volunteers
Yes

Inclusion criteria

* Signed Informed Consent Form, prior to screening evaluations * In good physical and mental health * Pre-menopausal females between the ages of 18-35 years (both inclusive) at the time of randomisation * Regular menstrual cycles of 26-35 days duration (both inclusive), presumed to be ovulatory * Body mass index (BMI) between 18 and 29 kg/m2 (both inclusive) * Willing to donate the retrieved oocytes * Willing to use an adequate barrier method of contraception from informed consent to Day hCG injection +7 and to use an adequate barrier or hormonal method of contraception from Day hCG injection +7 to the end-of-study visit

Exclusion criteria

* Abnormal karyotype * Any known clinically significant systemic disease (e.g., insulin dependent diabetes) * Any known endocrine or metabolic abnormalities (pituitary, adrenal, pancreas, liver or kidney) which can compromise participation in the study * Diagnosed with polycystic ovarian syndrome or endometriosis stage III/IV * Diagnosed as poor responder * History of recurrent miscarriage (defined as three consecutive spontaneous losses before weeks 24 of pregnancy) * Pregnancy or lactation * Use of any investigational drug during 3 months prior to start of the current COH cycle * Previous participation in the study * Hypersensitivity to any trial product

Design outcomes

Primary

MeasureTime frameDescription
Coefficient of Variation of Follicular Sizes on Stimulation Day 1 (Follicles ≥ 2 mm)Stimulation Day 1Explanation of the term coefficient of variation: The coefficient of variation is a normalized measure of dispersion of a probability distribution.

Secondary

MeasureTime frameDescription
Frequency of Oocyte Donors With Adequate Secretory Transformation at the Endometrial Histology Evaluation 7 Days After Injection With Human Chorionic Gonadotrophin (hCG)7 days after hCG injectionAn adequate secretory endometrium 7 days after hCG injection was defined as secretory in the histological classification and with endometrial dating corresponding to the expected cycle day ±1 day.

Countries

Belgium, Czechia, Spain

Participant flow

Participants by arm

ArmCount
Degarelix Mid-luteal, 2.5 mg
Degarelix 2.5 mg will be injected subcutaneously (SC) 7 days after luteinizing hormone (LH) peak and on Stimulation Day 6. Placebo will be injected SC on Stimulation Day 1.
39
Placebo
Placebo will be injected subcutaneously (SC) 7 days after luteinizing hormone (LH) peak. Degarelix 2.5 mg will be injected SC on Stimulation Day 1 and Stimulation Day 6. or Placebo will be injected SC 7 days after LH peak and on Stimulation Day 1. Ganirelix 0.25 mg will be injected SC daily from Stimulation Day 6 until the last stimulation day.
39
Total78

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLarge follicle size22
Overall Studyloss of subject contact11
Overall StudyLow follicular response.12
Overall StudyNon-compliance with protocol01
Overall StudyPersonal reasons11
Overall StudyTravelling of subject.10

Baseline characteristics

CharacteristicDegarelix Mid-luteal, 2.5 mgPlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
39 Participants39 Participants78 Participants
Age Continuous28.9 years
STANDARD_DEVIATION 4.1
28.0 years
STANDARD_DEVIATION 3.9
28.4 years
STANDARD_DEVIATION 4
Region of Enrollment
Belgium
5 participants6 participants11 participants
Region of Enrollment
Czech Republic
7 participants7 participants14 participants
Region of Enrollment
Spain
27 participants26 participants53 participants
Sex: Female, Male
Female
39 Participants39 Participants78 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
— / —— / —
other
Total, other adverse events
7 / 634 / 22
serious
Total, serious adverse events
1 / 630 / 22

Outcome results

Primary

Coefficient of Variation of Follicular Sizes on Stimulation Day 1 (Follicles ≥ 2 mm)

Explanation of the term coefficient of variation: The coefficient of variation is a normalized measure of dispersion of a probability distribution.

Time frame: Stimulation Day 1

ArmMeasureValue (MEAN)Dispersion
Degarelix Mid-luteal, 2.5 mgCoefficient of Variation of Follicular Sizes on Stimulation Day 1 (Follicles ≥ 2 mm)36.7 PercentageStandard Deviation 5.6
PlaceboCoefficient of Variation of Follicular Sizes on Stimulation Day 1 (Follicles ≥ 2 mm)39.2 PercentageStandard Deviation 9.5
Secondary

Frequency of Oocyte Donors With Adequate Secretory Transformation at the Endometrial Histology Evaluation 7 Days After Injection With Human Chorionic Gonadotrophin (hCG)

An adequate secretory endometrium 7 days after hCG injection was defined as secretory in the histological classification and with endometrial dating corresponding to the expected cycle day ±1 day.

Time frame: 7 days after hCG injection

Population: Subjects with evaluable endometrial biopsies 7 days after injection with hCG.

ArmMeasureValue (NUMBER)
Degarelix Mid-luteal, 2.5 mgFrequency of Oocyte Donors With Adequate Secretory Transformation at the Endometrial Histology Evaluation 7 Days After Injection With Human Chorionic Gonadotrophin (hCG)31 Participants
PlaceboFrequency of Oocyte Donors With Adequate Secretory Transformation at the Endometrial Histology Evaluation 7 Days After Injection With Human Chorionic Gonadotrophin (hCG)11 Participants
Ganirelix, 0.25 mgFrequency of Oocyte Donors With Adequate Secretory Transformation at the Endometrial Histology Evaluation 7 Days After Injection With Human Chorionic Gonadotrophin (hCG)14 Participants

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