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Efficacy and Safety of FE 999049 in Controlled Ovarian Stimulation in Japanese Women

A Randomised, Controlled, Assessor-blind, Parallel Groups, Multicentre Trial Assessing the Efficacy and Safety of FE 999049 in Controlled Ovarian Stimulation in Japanese Women Undergoing an Assisted Reproductive Technology Programme

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03228680
Enrollment
373
Registered
2017-07-25
Start date
2017-07-29
Completion date
2019-07-08
Last updated
2023-08-24

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

Conditions

Infertility

Brief summary

To demonstrate non-inferiority of FE 999049 compared to FOLLISTIM with respect to number of oocytes retrieved in Japanese IVF/ICSI patients undergoing controlled ovarian stimulation.

Interventions

Single daily subcutaneous administration through pre-filled injection pen

Single daily subcutaneous injection in the abdomen

Sponsors

Ferring Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
20 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

* Informed Consent Documents signed prior to any trial-related procedures. * In good physical and mental health. * Japanese females between the ages of 20 and 40 years. * Infertile women diagnosed with tubal infertility, unexplained infertility, endometriosis stage I/II (defined by the revised American Society for Reproductive Medicine (ASRM) classification) or with partners diagnosed with male factor infertility, eligible for in vitro fertilization (IVF) and/or intracytoplasmic sperm injection (ICSI) treatment using ejaculated sperm from male partner. * Infertility for at least 1 year before randomization (not applicable in case of tubal or severe male factor infertility). * The trial cycle will be the participant's first controlled ovarian stimulation cycle for IVF/ICSI. * Hysterosalpingography, hysteroscopy, saline infusion sonography or transvaginal ultrasound documenting a uterus consistent with expected normal function (e.g. no evidence of clinically interfering uterine fibroids defined as submucous or intramural fibroids larger than 3 cm in diameter, no polyps and no congenital structural abnormalities which are associated with a reduced chance of pregnancy) within 1 year prior to screening. This also includes women who have been diagnosed with any of the above medical conditions but have had them surgically corrected within 1 year prior to screening. * Transvaginal ultrasound documenting presence and adequate visualization of both ovaries, without evidence of significant abnormality (e.g. no endometrioma greater than 3 cm or enlarged ovaries which would contraindicate the use of gonadotropins) and fallopian tubes and surrounding tissue without evidence of significant abnormality (e.g. no hydrosalpinx) within 1 year prior to screening. Both ovaries must be accessible for oocyte retrieval. * Early follicular phase (cycle day 2-4) serum levels of follicle stimulating hormone (FSH) between 1 and 15 IU/L (results obtained within 3 months prior to screening). * Body mass index (BMI) between 17.5 and 32.0 kg/m\^2 (both inclusive) at screening.

Exclusion criteria

* Known endometriosis stage III-IV (defined by the revised ASRM classification). * One or more follicles \>10 mm (including cysts) observed on the transvaginal ultrasound prior to start of stimulation on stimulation day 1 (puncture of cysts prior randomization is allowed). * Known history of recurrent miscarriage (defined as three consecutive losses after ultrasound confirmation of pregnancy (excl. ectopic pregnancy) and before week 24 of pregnancy). * Known abnormal karyotype of participant or of her partner. In case the sperm production is severely impaired (concentration \<1 million/mL), normal karyotype, including no Y chromosome microdeletion, must be documented. * Active arterial or venous thromboembolism or severe thrombophlebitis, or a history of these events. * 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 trial with the exception of controlled thyroid function disease. * Known tumours of the ovary, breast, uterus, adrenal gland, pituitary or hypothalamus which would contraindicate the use of gonadotropins.

Design outcomes

Primary

MeasureTime frameDescription
Number of Oocytes Retrieved36h (± 2h) after triggering of final follicular maturation (On day of oocyte retrieval)The number of oocytes retrieved was recorded at the oocyte retrieval visit.

Secondary

MeasureTime frameDescription
Positive Beta Unit of Human Chorionic Gonadotropin (Beta-hCG) Rate13-15 days after transfer (up to approximately 1.5 months after start of stimulation)Defined as positive serum beta-hCG test 13-15 days after transfer.
Vital Pregnancy Rate5-6 weeks after transfer (up to approximately 3 months after start of stimulation)Vital pregnancy was defined as at least one intrauterine gestational sac with fetal heart beat 5-6 weeks after transfer.
Implantation Rate5-6 weeks after transfer (up to approximately 3 months after start of stimulation)Implantation rate was defined as the number of gestational sacs 5-6 weeks after transfer divided by the number of blastocysts transferred.
Proportion of Participants With Cycle Cancellation Due to Poor or Excessive Ovarian ResponseEnd-of-stimulation (up to 20 stimulation days)
Proportion of Participants With Blastocyst Transfer Cancellation Due to Excessive Ovarian Response / OHSS RiskEnd-of-stimulation (up to 20 stimulation days)
Proportion of Participants With <4, 4-7, 8-14, 15-19 and ≥20 Oocytes RetrievedOn the day of oocyte retrieval (up to 22 days after start of stimulation)Defined as proportion of participants grouped according to the number of oocytes retrieved. The proportion of participants with \<4 oocytes (low response), 4-7 oocytes (moderate response), 8-14 oocytes (targeted response), 15-19 oocytes (hyperresponse) and ≥20 oocytes (severe hyperresponse) are presented.
Proportion of Participants With Extreme Ovarian Responses (Defined as <4, ≥15 or ≥20 Oocytes Retrieved) in Risk PopulationOn the day of oocyte retrieval (up to 22 days after start of stimulation)
Proportion of Participants With Preventive Interventions for Early Ovarian Hyperstimulation Syndrome (OHSS)≤9 days after triggering of final follicular maturation
Proportions of Participants With Early OHSS (Including OHSS of Moderate/Severe Grade) and/or Preventive Interventions for Early OHSSUp to 9 days after triggering of final follicular maturationDefined as proportion of participants with early OHSS, early OHSS of moderate or severe grade, preventive interventions for early OHSS, early OHSS and/or preventive interventions for early OHSS, and early OHSS of moderate or severe grade and/or preventive interventions for early OHSS are presented.
Proportions of Participants With Late OHSS (Including OHSS of Moderate/Severe Grade)>9 days after triggering of final follicular maturationDefined as proportions of participants with late OHSS (including OHSS of moderate/severe grade). Late OHSS was defined as OHSS with onset \>9 days after triggering of final follicular maturation. The proportion of participants with late OHSS, and late OHSS of moderate or severe grade are presented. All OHSS cases were graded as mild, moderate, or severe.
Number of Follicles on Stimulation Day 6At Day 6 of stimulationDefined as the number of follicles observed in both ovaries at the last transvaginal ultrasound (TVUS) in the stimulation phase (on stimulation Day 6).
Number of Follicles at End-of-stimulationEnd-of-stimulation (up to 20 stimulation days)Defined as the number of follicles observed in both ovaries at the last TVUS in the stimulation phase (end-of-stimulation).
Size of Follicles on Stimulation Day 6At Day 6 of stimulationDefined as size characteristics of follicles on stimulation Day 6. Average size of 3 largest follicles has been presented in this endpoint.
Size of Follicles at End-of-StimulationEnd-of-stimulation (up to 20 stimulation days)Defined as size characteristics of follicles at end-of-stimulation. Average size of 3 largest follicles has been presented in this endpoint.
Fertilization RateDay 1 after oocyte retrieval (up to approximately 22 days after start of stimulation)The fertilization rate was defined as the number of oocytes with 2 pronuclei divided by the number of oocytes retrieved.
Number and Quality of EmbryosDay 3 after oocyte retrieval (up to approximately 24 days after start of stimulation)Number of embryos (total and good-quality) on Day 3 are presented. A good-quality embryo was defined as an embryo with ≥6 blastomeres and fragmentation ≤20% on Day 3.
Total Gonadotropin Dose of FE 999049End-of-stimulation (up to 20 stimulation days)
Number and Quality of BlastocystsDay 5 after oocyte retrieval (up to approximately 26 days after start of stimulation)Number of embryos (total and good-quality) on Day 5 are presented. The quality evaluation of blastocysts consisted of assessment of three parameters, as per the Gardner & Schoolcraft system: blastocyst expansion and hatching status (graded: 1-6), inner cell mass (graded: A-D) and trophectoderm (graded: A-D). A good-quality blastocyst was defined as a blastocyst of grade 3BB or higher.
Clinical Pregnancy Rate5-6 weeks after transfer (up to approximately 3 months after start of stimulation)Clinical pregnancy was defined as at least one gestational sac 5-6 weeks after transfer.
Circulating Levels of Endocrine Parameters (Follicle-stimulating Hormone [FSH], Luteinising Hormone [LH]) at End-of-stimulationEnd-of-stimulation (up to 20 stimulation days)The median and IQR of FSH and LH levels at end-of-stimulation are presented.
Circulating Levels of Endocrine Parameter (Estradiol) on Stimulation Day 6At Day 6 of stimulationThe median and IQR of estradiol levels on stimulation Day 6 are presented.
Circulating Levels of Endocrine Parameter (Estradiol) at End-of-stimulationEnd-of-stimulation (up to 20 stimulation days)The median and IQR of estradiol levels at end-of-stimulation are presented.
Circulating Levels of Endocrine Parameter (Progesterone) on Stimulation Day 6At Day 6 of stimulationThe median and IQR of progesterone levels on stimulation Day 6 are presented.
Circulating Levels of Endocrine Parameter (Progesterone) at End-of-stimulationEnd-of-stimulation (up to 20 stimulation days)The median and IQR of progesterone levels at end-of-stimulation are presented.
Circulating Levels of Endocrine Parameters (Inhibin A) on Stimulation Day 6At Day 6 of stimulationThe median and IQR of Inhibin A levels on stimulation Day 6 are presented.
Circulating Levels of Endocrine Parameters (Inhibin A) at End-of-stimulationEnd-of-stimulation (up to 20 stimulation days)The median and IQR of Inhibin A levels at end-of-stimulation are presented.
Circulating Levels of Endocrine Parameters (Inhibin B) on Stimulation Day 6At Day 6 of stimulationThe median and IQR of inhibin B levels on stimulation Day 6 are presented.
Circulating Levels of Endocrine Parameters (Inhibin B) at End-of-stimulationEnd-of-stimulation (up to 20 stimulation days)The median and IQR of inhibin B levels at end-of-stimulation are presented.
Number of Stimulation DaysEnd-of-stimulation (up to 20 stimulation days)
Total Gonadotropin Dose of FOLLISTIMEnd-of-stimulation (up to 20 stimulation days)
Number of Participants With Adverse Events (AEs) Stratified by IntensityFrom signed informed consent up to 5-6 weeks after transferThe frequency of participants with total AEs and AEs by categories of intensity (mild, moderate, severe) are presented. An AE was any untoward medical occurrence in a participants participating in clinical trial. The intensity of AE was classified using the following 3-point scale: mild = awareness of signs or symptoms, but no disruption of usual activity); moderate = event sufficient to affect usual activity (disturbing); or severe = inability to work or perform usual activities (unacceptable).
Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Clinical Chemistry Parameters at End-of-stimulationEnd-of-stimulation (up to 20 stimulation days)Defined as number of participants with at least one markedly abnormal finding in clinical chemistry parameters (as assessed by investigator) were reported. The clinical chemistry parameters included: alanine transaminase (ALT), albumin, alkaline phosphatase (ALP), aspartate aminotransferase (AST), bicarbonate, bilirubin direct, bilirubin total, blood urea nitrogen, calcium, chloride, cholesterol total, creatinine, gamma-glutamyl transpeptidase, glucose, lactate dehydrogenase, phosphorus, potassium, sodium, total protein, uric acid.
Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Hematology Parameters at End-of-stimulationEnd-of-stimulation (up to 20 stimulation days)Defined as number of participants with at least one markedly abnormal changes in hematology parameters (as assessed by investigator) were reported. Hematology parameters included: red blood cells, white blood cells, red blood cells morphology, white blood cells morphology, haemoglobin, haematocrit, mean corpuscular volume, mean corpuscular haemoglobin, mean corpuscular haemoglobin concentration, platelets.
Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Clinical Chemistry Parameters at End-of-trialUp to 5-6 weeks after transferDefined as number of participants with at least one markedly abnormal finding in clinical chemistry parameters (as assessed by investigator) were reported. The clinical chemistry parameters included: alanine transaminase (ALT), albumin, alkaline phosphatase (ALP), aspartate aminotransferase (AST), bicarbonate, bilirubin direct, bilirubin total, blood urea nitrogen, calcium, chloride, cholesterol total, creatinine, gamma-glutamyl transpeptidase, glucose, lactate dehydrogenase, phosphorus, potassium, sodium, total protein, uric acid.
Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Hematology Parameters at End-of-trialUp to 5-6 weeks after transferDefined as number of participants with at least one markedly abnormal changes in hematology parameters (as assessed by investigator) were reported. Hematology parameters included: red blood cells, white blood cells, red blood cells morphology, white blood cells morphology, haemoglobin, haematocrit, mean corpuscular volume, mean corpuscular haemoglobin, mean corpuscular haemoglobin concentration, platelets.
Frequency and Intensity of Injection Site ReactionsEnd-of-stimulation (up to 20 stimulation days)The presence of of injection site reactions (redness, itching, pain, swelling and bruising) immediately, 30 minutes and 24 hours after the injection are presented. The injection site reactions were assessed as none, mild, moderate and severe. The number of injection site reactions (mild, moderate or severe) based on all assessments performed is presented.
Technical Malfunctions of the Administration PensEnd-of-stimulation (up to 20 stimulation days)
Circulating Levels of Endocrine Parameters (Follicle-stimulating Hormone [FSH], Luteinising Hormone [LH]) on Stimulation Day 6At Day 6 of stimulationThe median and inter-quartile range (IQR) of FSH and LH levels on stimulation Day 6 are presented.

Countries

Japan

Participant flow

Recruitment details

A total of 17 investigational sites in Japan randomized participants to the trial between 29 July 2017 to 08 July 2019.

Pre-assignment details

A total of 373 participants were screened. Of these, 25 were screening failures and 348 participants were randomized: 170 participants were exposed to FE 999049 & 177 participants were exposed to FOLLISTIM. One participant was randomized to FOLLISTIM but not exposed to investigational medicinal product (IMP) was considered a randomization failure.

Participants by arm

ArmCount
FE 999049 (Follitropin Delta)
FE 999049 was administered as single daily subcutaneous injections in the abdomen. Participants randomized to FE 999049 had their individual dose determined on the basis of their AMH level at screening and their body weight at randomization. The daily FE 999049 dose was fixed throughout the stimulation period. The minimum allowed daily FE 999049 dose was 6 μg and maximum allowed daily dose was 12 μg. Dosing continued until the criterion for triggering of final follicular maturation was met. Participants could be treated for a maximum of 20 days.
170
FOLLISTIM (Follitropin Beta)
FOLLISTIM was administered as single daily subcutaneous injections in the abdomen. The starting dose of FOLLISTIM was 150 IU and fixed for the first five stimulation days, after which it could be adjusted by 75 IU based on the individual response. The maximum allowed daily dose was 375 IU. Dosing continued until the criterion for triggering of final follicular maturation was met. Participants could be treated for a maximum of 20 days.
177
Total347

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event1318
Overall StudyOther916
Overall StudyRandomization failure01
Overall StudyWithdrawal by Subject10

Baseline characteristics

CharacteristicFE 999049 (Follitropin Delta)FOLLISTIM (Follitropin Beta)Total
Age, Continuous34.2 years
STANDARD_DEVIATION 3.5
34.0 years
STANDARD_DEVIATION 3.4
34.1 years
STANDARD_DEVIATION 3.5
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
170 Participants177 Participants347 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
170 Participants177 Participants347 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
0 Participants0 Participants0 Participants
Region of Enrollment
Japan
170 participants177 participants347 participants
Sex: Female, Male
Female
170 Participants177 Participants347 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
0 / 1700 / 177
other
Total, other adverse events
73 / 17092 / 177
serious
Total, serious adverse events
0 / 1702 / 177

Outcome results

Primary

Number of Oocytes Retrieved

The number of oocytes retrieved was recorded at the oocyte retrieval visit.

Time frame: 36h (± 2h) after triggering of final follicular maturation (On day of oocyte retrieval)

Population: The full analysis set (FAS) comprised all randomized and exposed participants.

ArmMeasureValue (MEAN)Dispersion
FE 999049 (Follitropin Delta)Number of Oocytes Retrieved9.3 Oocytes retrievedStandard Deviation 5.4
FOLLISTIM (Follitropin Beta)Number of Oocytes Retrieved10.5 Oocytes retrievedStandard Deviation 6.1
Comparison: Mean number of oocytes retrieved.95% CI: [-2.3, -0.1]
Secondary

Circulating Levels of Endocrine Parameter (Estradiol) at End-of-stimulation

The median and IQR of estradiol levels at end-of-stimulation are presented.

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureValue (MEDIAN)
FE 999049 (Follitropin Delta)Circulating Levels of Endocrine Parameter (Estradiol) at End-of-stimulation6517.0 pmol/L
FOLLISTIM (Follitropin Beta)Circulating Levels of Endocrine Parameter (Estradiol) at End-of-stimulation7438.8 pmol/L
Comparison: Circulating levels of estradiol at end-of-stimulation.p-value: 0.00395% CI: [0.76, 0.95]ANCOVA
Secondary

Circulating Levels of Endocrine Parameter (Estradiol) on Stimulation Day 6

The median and IQR of estradiol levels on stimulation Day 6 are presented.

Time frame: At Day 6 of stimulation

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureValue (MEDIAN)
FE 999049 (Follitropin Delta)Circulating Levels of Endocrine Parameter (Estradiol) on Stimulation Day 62277.1 pmol/L
FOLLISTIM (Follitropin Beta)Circulating Levels of Endocrine Parameter (Estradiol) on Stimulation Day 62680.0 pmol/L
Comparison: Circulating levels of estradiol on stimulation Day 6.p-value: 0.00295% CI: [0.71, 0.93]ANCOVA
Secondary

Circulating Levels of Endocrine Parameter (Progesterone) at End-of-stimulation

The median and IQR of progesterone levels at end-of-stimulation are presented.

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureValue (MEDIAN)
FE 999049 (Follitropin Delta)Circulating Levels of Endocrine Parameter (Progesterone) at End-of-stimulation2.5 nmol/L
FOLLISTIM (Follitropin Beta)Circulating Levels of Endocrine Parameter (Progesterone) at End-of-stimulation3.1 nmol/L
Comparison: Circulating levels of progesterone levels at end-of-stimulation.p-value: <0.00195% CI: [0.68, 0.88]ANCOVA
Secondary

Circulating Levels of Endocrine Parameter (Progesterone) on Stimulation Day 6

The median and IQR of progesterone levels on stimulation Day 6 are presented.

Time frame: At Day 6 of stimulation

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureValue (MEDIAN)
FE 999049 (Follitropin Delta)Circulating Levels of Endocrine Parameter (Progesterone) on Stimulation Day 61.7 nmol/L
FOLLISTIM (Follitropin Beta)Circulating Levels of Endocrine Parameter (Progesterone) on Stimulation Day 61.7 nmol/L
Comparison: Circulating levels of progesterone on stimulation Day 6.p-value: 0.81495% CI: [0.89, 1.16]ANCOVA
Secondary

Circulating Levels of Endocrine Parameters (Follicle-stimulating Hormone [FSH], Luteinising Hormone [LH]) at End-of-stimulation

The median and IQR of FSH and LH levels at end-of-stimulation are presented.

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureGroupValue (MEDIAN)
FE 999049 (Follitropin Delta)Circulating Levels of Endocrine Parameters (Follicle-stimulating Hormone [FSH], Luteinising Hormone [LH]) at End-of-stimulationFSH14.3 IU/L
FE 999049 (Follitropin Delta)Circulating Levels of Endocrine Parameters (Follicle-stimulating Hormone [FSH], Luteinising Hormone [LH]) at End-of-stimulationLH1.6 IU/L
FOLLISTIM (Follitropin Beta)Circulating Levels of Endocrine Parameters (Follicle-stimulating Hormone [FSH], Luteinising Hormone [LH]) at End-of-stimulationFSH16.4 IU/L
FOLLISTIM (Follitropin Beta)Circulating Levels of Endocrine Parameters (Follicle-stimulating Hormone [FSH], Luteinising Hormone [LH]) at End-of-stimulationLH1.4 IU/L
Comparison: Circulating levels of FSH at end-of-stimulation.p-value: <0.00195% CI: [0.84, 0.94]ANCOVA
Comparison: Circulating levels of LH at end-of-stimulation.p-value: 0.05795% CI: [1, 1.39]ANCOVA
Secondary

Circulating Levels of Endocrine Parameters (Follicle-stimulating Hormone [FSH], Luteinising Hormone [LH]) on Stimulation Day 6

The median and inter-quartile range (IQR) of FSH and LH levels on stimulation Day 6 are presented.

Time frame: At Day 6 of stimulation

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureGroupValue (MEDIAN)
FE 999049 (Follitropin Delta)Circulating Levels of Endocrine Parameters (Follicle-stimulating Hormone [FSH], Luteinising Hormone [LH]) on Stimulation Day 6FSH15.4 IU/L
FE 999049 (Follitropin Delta)Circulating Levels of Endocrine Parameters (Follicle-stimulating Hormone [FSH], Luteinising Hormone [LH]) on Stimulation Day 6LH2.6 IU/L
FOLLISTIM (Follitropin Beta)Circulating Levels of Endocrine Parameters (Follicle-stimulating Hormone [FSH], Luteinising Hormone [LH]) on Stimulation Day 6FSH14.7 IU/L
FOLLISTIM (Follitropin Beta)Circulating Levels of Endocrine Parameters (Follicle-stimulating Hormone [FSH], Luteinising Hormone [LH]) on Stimulation Day 6LH2.8 IU/L
Comparison: Circulating levels of FSH on stimulation Day 6.p-value: 0.22895% CI: [0.98, 1.09]ANCOVA
Comparison: Circulating levels of LH on stimulation Day 6.p-value: 0.77795% CI: [0.81, 1.17]ANCOVA
Secondary

Circulating Levels of Endocrine Parameters (Inhibin A) at End-of-stimulation

The median and IQR of Inhibin A levels at end-of-stimulation are presented.

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureValue (MEDIAN)
FE 999049 (Follitropin Delta)Circulating Levels of Endocrine Parameters (Inhibin A) at End-of-stimulation323.8 ng/L
FOLLISTIM (Follitropin Beta)Circulating Levels of Endocrine Parameters (Inhibin A) at End-of-stimulation390.3 ng/L
Comparison: Circulating levels of Inhibin A at end-of-stimulation.p-value: <0.00195% CI: [0.72, 0.88]ANCOVA
Secondary

Circulating Levels of Endocrine Parameters (Inhibin A) on Stimulation Day 6

The median and IQR of Inhibin A levels on stimulation Day 6 are presented.

Time frame: At Day 6 of stimulation

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureValue (MEDIAN)
FE 999049 (Follitropin Delta)Circulating Levels of Endocrine Parameters (Inhibin A) on Stimulation Day 6113.1 ng/L
FOLLISTIM (Follitropin Beta)Circulating Levels of Endocrine Parameters (Inhibin A) on Stimulation Day 6129.8 ng/L
Comparison: Circulating levels of Inhibin A on stimulation Day 6.p-value: <0.00195% CI: [0.73, 0.92]ANCOVA
Secondary

Circulating Levels of Endocrine Parameters (Inhibin B) at End-of-stimulation

The median and IQR of inhibin B levels at end-of-stimulation are presented.

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureValue (MEDIAN)
FE 999049 (Follitropin Delta)Circulating Levels of Endocrine Parameters (Inhibin B) at End-of-stimulation686.0 ng/L
FOLLISTIM (Follitropin Beta)Circulating Levels of Endocrine Parameters (Inhibin B) at End-of-stimulation734.5 ng/L
Comparison: Circulating levels of Inhibin B at end-of-stimulation.p-value: 0.02795% CI: [0.79, 0.99]ANCOVA
Secondary

Circulating Levels of Endocrine Parameters (Inhibin B) on Stimulation Day 6

The median and IQR of inhibin B levels on stimulation Day 6 are presented.

Time frame: At Day 6 of stimulation

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureValue (MEDIAN)
FE 999049 (Follitropin Delta)Circulating Levels of Endocrine Parameters (Inhibin B) on Stimulation Day 6570.5 ng/L
FOLLISTIM (Follitropin Beta)Circulating Levels of Endocrine Parameters (Inhibin B) on Stimulation Day 6686.0 ng/L
Comparison: Circulating levels of Inhibin B on stimulation Day 6.p-value: <0.00195% CI: [0.75, 0.93]ANCOVA
Secondary

Clinical Pregnancy Rate

Clinical pregnancy was defined as at least one gestational sac 5-6 weeks after transfer.

Time frame: 5-6 weeks after transfer (up to approximately 3 months after start of stimulation)

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureValue (NUMBER)
FE 999049 (Follitropin Delta)Clinical Pregnancy Rate25.3 percentage of participants
FOLLISTIM (Follitropin Beta)Clinical Pregnancy Rate23.7 percentage of participants
Comparison: Percentage of participants with at least one gestational sac 5-6 weeks after transfer.95% CI: [-7.5, 10.6]
Secondary

Fertilization Rate

The fertilization rate was defined as the number of oocytes with 2 pronuclei divided by the number of oocytes retrieved.

Time frame: Day 1 after oocyte retrieval (up to approximately 22 days after start of stimulation)

Population: The FAS comprised all randomized and exposed participants

ArmMeasureValue (MEAN)Dispersion
FE 999049 (Follitropin Delta)Fertilization Rate54.5 percentage of fertilized oocytesStandard Deviation 26.1
FOLLISTIM (Follitropin Beta)Fertilization Rate57.1 percentage of fertilized oocytesStandard Deviation 23.4
Comparison: The fertilization rate (number of oocytes with 2 pronuclei divided by the number of oocytes retrieved) was analyzed.p-value: 0.395van Elteren test
Secondary

Frequency and Intensity of Injection Site Reactions

The presence of of injection site reactions (redness, itching, pain, swelling and bruising) immediately, 30 minutes and 24 hours after the injection are presented. The injection site reactions were assessed as none, mild, moderate and severe. The number of injection site reactions (mild, moderate or severe) based on all assessments performed is presented.

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The safety analysis set comprised of all randomized and exposed participants.

ArmMeasureGroupValue (NUMBER)
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsAny mild injection site reaction271 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsModerate itching1 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsMild redness140 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsSevere itching0 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsSevere swelling0 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsMild pain19 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsModerate redness2 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsModerate pain1 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsAny moderate injection site reaction7 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsSevere pain0 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsMild bruising102 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsMild swelling6 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsSevere redness0 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsModerate swelling0 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsModerate bruising3 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsAny severe injection site reaction1 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsSevere bruising1 events
FE 999049 (Follitropin Delta)Frequency and Intensity of Injection Site ReactionsMild itching4 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsSevere bruising0 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsSevere swelling0 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsAny mild injection site reaction719 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsAny moderate injection site reaction19 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsAny severe injection site reaction0 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsMild redness174 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsModerate redness0 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsMild bruising119 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsSevere redness0 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsMild itching5 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsModerate itching0 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsSevere itching0 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsMild pain411 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsModerate pain16 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsSevere pain0 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsMild swelling10 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsModerate bruising3 events
FOLLISTIM (Follitropin Beta)Frequency and Intensity of Injection Site ReactionsModerate swelling0 events
Secondary

Implantation Rate

Implantation rate was defined as the number of gestational sacs 5-6 weeks after transfer divided by the number of blastocysts transferred.

Time frame: 5-6 weeks after transfer (up to approximately 3 months after start of stimulation)

Population: The FAS comprised of all randomized and exposed participants with blastocyst transfer.

ArmMeasureValue (NUMBER)
FE 999049 (Follitropin Delta)Implantation Rate31.9 % of sacs/blastocysts transferred
FOLLISTIM (Follitropin Beta)Implantation Rate29.8 % of sacs/blastocysts transferred
Comparison: Percentage of implanted embryos 5-6 weeks after transfer.95% CI: [-8.9, 12.8]
Secondary

Number and Quality of Blastocysts

Number of embryos (total and good-quality) on Day 5 are presented. The quality evaluation of blastocysts consisted of assessment of three parameters, as per the Gardner & Schoolcraft system: blastocyst expansion and hatching status (graded: 1-6), inner cell mass (graded: A-D) and trophectoderm (graded: A-D). A good-quality blastocyst was defined as a blastocyst of grade 3BB or higher.

Time frame: Day 5 after oocyte retrieval (up to approximately 26 days after start of stimulation)

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureGroupValue (MEAN)Dispersion
FE 999049 (Follitropin Delta)Number and Quality of BlastocystsNumber of blastocysts3.1 BlastocystsStandard Deviation 2.7
FE 999049 (Follitropin Delta)Number and Quality of BlastocystsNumber of good-quality blastocysts2.3 BlastocystsStandard Deviation 2.3
FOLLISTIM (Follitropin Beta)Number and Quality of BlastocystsNumber of blastocysts4.2 BlastocystsStandard Deviation 3.4
FOLLISTIM (Follitropin Beta)Number and Quality of BlastocystsNumber of good-quality blastocysts3.0 BlastocystsStandard Deviation 2.6
Comparison: The number of blastocysts on Day 5 was analyzed.p-value: <0.001van Elteren test
Comparison: The number of good-quality blastocysts on Day 5 was analyzed.p-value: <0.001van Elteren test
Secondary

Number and Quality of Embryos

Number of embryos (total and good-quality) on Day 3 are presented. A good-quality embryo was defined as an embryo with ≥6 blastomeres and fragmentation ≤20% on Day 3.

Time frame: Day 3 after oocyte retrieval (up to approximately 24 days after start of stimulation)

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureGroupValue (MEAN)Dispersion
FE 999049 (Follitropin Delta)Number and Quality of EmbryosNumber of embryo5.8 EmbryoStandard Deviation 4.2
FE 999049 (Follitropin Delta)Number and Quality of EmbryosNumber of good-quality embryo3.9 EmbryoStandard Deviation 3.3
FOLLISTIM (Follitropin Beta)Number and Quality of EmbryosNumber of embryo7.0 EmbryoStandard Deviation 4.3
FOLLISTIM (Follitropin Beta)Number and Quality of EmbryosNumber of good-quality embryo4.6 EmbryoStandard Deviation 3.3
Comparison: The number of embryos on Day 3 was analyzed.p-value: 0.001van Elteren test
Comparison: The number of good-quality embryos on Day 3 was analyzed.p-value: 0.004van Elteren test
Secondary

Number of Follicles at End-of-stimulation

Defined as the number of follicles observed in both ovaries at the last TVUS in the stimulation phase (end-of-stimulation).

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The FAS comprised of all randomized or exposed participants.

ArmMeasureValue (MEAN)Dispersion
FE 999049 (Follitropin Delta)Number of Follicles at End-of-stimulation14.9 FolliclesStandard Deviation 8
FOLLISTIM (Follitropin Beta)Number of Follicles at End-of-stimulation16.3 FolliclesStandard Deviation 8.8
Comparison: The number of follicles at end-of-stimulation was analyzed.p-value: 0.036van Elteren test
Secondary

Number of Follicles on Stimulation Day 6

Defined as the number of follicles observed in both ovaries at the last transvaginal ultrasound (TVUS) in the stimulation phase (on stimulation Day 6).

Time frame: At Day 6 of stimulation

Population: The FAS comprised of all randomized or exposed participants.

ArmMeasureValue (MEAN)Dispersion
FE 999049 (Follitropin Delta)Number of Follicles on Stimulation Day 612.8 FolliclesStandard Deviation 7.2
FOLLISTIM (Follitropin Beta)Number of Follicles on Stimulation Day 613.3 FolliclesStandard Deviation 7.1
Comparison: The number of follicles on stimulation Day 6 was analyzed.p-value: 0.198van Elteren test
Secondary

Number of Participants With Adverse Events (AEs) Stratified by Intensity

The frequency of participants with total AEs and AEs by categories of intensity (mild, moderate, severe) are presented. An AE was any untoward medical occurrence in a participants participating in clinical trial. The intensity of AE was classified using the following 3-point scale: mild = awareness of signs or symptoms, but no disruption of usual activity); moderate = event sufficient to affect usual activity (disturbing); or severe = inability to work or perform usual activities (unacceptable).

Time frame: From signed informed consent up to 5-6 weeks after transfer

Population: The safety analysis set comprised of all randomized and exposed participants.

ArmMeasureGroupValue (NUMBER)
FE 999049 (Follitropin Delta)Number of Participants With Adverse Events (AEs) Stratified by IntensityAny AE73 Participants
FE 999049 (Follitropin Delta)Number of Participants With Adverse Events (AEs) Stratified by IntensityMild AE69 Participants
FE 999049 (Follitropin Delta)Number of Participants With Adverse Events (AEs) Stratified by IntensityModerate AE8 Participants
FE 999049 (Follitropin Delta)Number of Participants With Adverse Events (AEs) Stratified by IntensitySevere AE0 Participants
FOLLISTIM (Follitropin Beta)Number of Participants With Adverse Events (AEs) Stratified by IntensitySevere AE1 Participants
FOLLISTIM (Follitropin Beta)Number of Participants With Adverse Events (AEs) Stratified by IntensityAny AE92 Participants
FOLLISTIM (Follitropin Beta)Number of Participants With Adverse Events (AEs) Stratified by IntensityModerate AE12 Participants
FOLLISTIM (Follitropin Beta)Number of Participants With Adverse Events (AEs) Stratified by IntensityMild AE86 Participants
Secondary

Number of Stimulation Days

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The safety analysis set comprised of all randomized and exposed participants.

ArmMeasureValue (MEAN)Dispersion
FE 999049 (Follitropin Delta)Number of Stimulation Days8.9 DaysStandard Deviation 1.9
FOLLISTIM (Follitropin Beta)Number of Stimulation Days8.8 DaysStandard Deviation 1.7
Comparison: The number of stimulation days at end-of-stimulation.p-value: 0.694van Elteren test
Secondary

Positive Beta Unit of Human Chorionic Gonadotropin (Beta-hCG) Rate

Defined as positive serum beta-hCG test 13-15 days after transfer.

Time frame: 13-15 days after transfer (up to approximately 1.5 months after start of stimulation)

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureValue (NUMBER)
FE 999049 (Follitropin Delta)Positive Beta Unit of Human Chorionic Gonadotropin (Beta-hCG) Rate29.4 percentage of participants
FOLLISTIM (Follitropin Beta)Positive Beta Unit of Human Chorionic Gonadotropin (Beta-hCG) Rate29.4 percentage of participants
Comparison: Percentage of participants with positive beta-hCG.95% CI: [-9.5, 9.6]
Secondary

Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Clinical Chemistry Parameters at End-of-stimulation

Defined as number of participants with at least one markedly abnormal finding in clinical chemistry parameters (as assessed by investigator) were reported. The clinical chemistry parameters included: alanine transaminase (ALT), albumin, alkaline phosphatase (ALP), aspartate aminotransferase (AST), bicarbonate, bilirubin direct, bilirubin total, blood urea nitrogen, calcium, chloride, cholesterol total, creatinine, gamma-glutamyl transpeptidase, glucose, lactate dehydrogenase, phosphorus, potassium, sodium, total protein, uric acid.

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The safety analysis set comprised of all randomized and exposed participants.

ArmMeasureGroupValue (NUMBER)
FE 999049 (Follitropin Delta)Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Clinical Chemistry Parameters at End-of-stimulationALT (IU/L): Normal to markedly high (>3xULN)0 participants
FE 999049 (Follitropin Delta)Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Clinical Chemistry Parameters at End-of-stimulationAST (IU/L): Normal to markedly high (>3xULN)0 participants
FOLLISTIM (Follitropin Beta)Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Clinical Chemistry Parameters at End-of-stimulationALT (IU/L): Normal to markedly high (>3xULN)1 participants
FOLLISTIM (Follitropin Beta)Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Clinical Chemistry Parameters at End-of-stimulationAST (IU/L): Normal to markedly high (>3xULN)1 participants
Secondary

Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Clinical Chemistry Parameters at End-of-trial

Defined as number of participants with at least one markedly abnormal finding in clinical chemistry parameters (as assessed by investigator) were reported. The clinical chemistry parameters included: alanine transaminase (ALT), albumin, alkaline phosphatase (ALP), aspartate aminotransferase (AST), bicarbonate, bilirubin direct, bilirubin total, blood urea nitrogen, calcium, chloride, cholesterol total, creatinine, gamma-glutamyl transpeptidase, glucose, lactate dehydrogenase, phosphorus, potassium, sodium, total protein, uric acid.

Time frame: Up to 5-6 weeks after transfer

Population: The safety analysis set comprised of all randomized and exposed participants.

ArmMeasureValue (NUMBER)
FE 999049 (Follitropin Delta)Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Clinical Chemistry Parameters at End-of-trial0 participants
FOLLISTIM (Follitropin Beta)Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Clinical Chemistry Parameters at End-of-trial0 participants
Secondary

Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Hematology Parameters at End-of-stimulation

Defined as number of participants with at least one markedly abnormal changes in hematology parameters (as assessed by investigator) were reported. Hematology parameters included: red blood cells, white blood cells, red blood cells morphology, white blood cells morphology, haemoglobin, haematocrit, mean corpuscular volume, mean corpuscular haemoglobin, mean corpuscular haemoglobin concentration, platelets.

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The safety analysis set comprised of all randomized and exposed participants.

ArmMeasureValue (NUMBER)
FE 999049 (Follitropin Delta)Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Hematology Parameters at End-of-stimulation0 participants
FOLLISTIM (Follitropin Beta)Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Hematology Parameters at End-of-stimulation0 participants
Secondary

Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Hematology Parameters at End-of-trial

Defined as number of participants with at least one markedly abnormal changes in hematology parameters (as assessed by investigator) were reported. Hematology parameters included: red blood cells, white blood cells, red blood cells morphology, white blood cells morphology, haemoglobin, haematocrit, mean corpuscular volume, mean corpuscular haemoglobin, mean corpuscular haemoglobin concentration, platelets.

Time frame: Up to 5-6 weeks after transfer

Population: The safety analysis set comprised of all randomized and exposed participants.

ArmMeasureGroupValue (NUMBER)
FE 999049 (Follitropin Delta)Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Hematology Parameters at End-of-trialLeukocytes (10^9/L) Normal to markedly high (>=16)0 participants
FE 999049 (Follitropin Delta)Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Hematology Parameters at End-of-trialHemoglobin (g/L) Normal to markedly low0 participants
FE 999049 (Follitropin Delta)Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Hematology Parameters at End-of-trialHematocrit (ratio) Normal to markedly low (>=0.56)0 participants
FOLLISTIM (Follitropin Beta)Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Hematology Parameters at End-of-trialLeukocytes (10^9/L) Normal to markedly high (>=16)1 participants
FOLLISTIM (Follitropin Beta)Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Hematology Parameters at End-of-trialHemoglobin (g/L) Normal to markedly low1 participants
FOLLISTIM (Follitropin Beta)Proportion of Participants Who Had Markedly Abnormal Value Changes From Baseline in Hematology Parameters at End-of-trialHematocrit (ratio) Normal to markedly low (>=0.56)1 participants
Secondary

Proportion of Participants With <4, 4-7, 8-14, 15-19 and ≥20 Oocytes Retrieved

Defined as proportion of participants grouped according to the number of oocytes retrieved. The proportion of participants with \<4 oocytes (low response), 4-7 oocytes (moderate response), 8-14 oocytes (targeted response), 15-19 oocytes (hyperresponse) and ≥20 oocytes (severe hyperresponse) are presented.

Time frame: On the day of oocyte retrieval (up to 22 days after start of stimulation)

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureGroupValue (NUMBER)
FE 999049 (Follitropin Delta)Proportion of Participants With <4, 4-7, 8-14, 15-19 and ≥20 Oocytes RetrievedModerate response (4-7 oocytes)36.1 percentage of participants
FE 999049 (Follitropin Delta)Proportion of Participants With <4, 4-7, 8-14, 15-19 and ≥20 Oocytes RetrievedHyperresponse (15-19 oocytes)10.1 percentage of participants
FE 999049 (Follitropin Delta)Proportion of Participants With <4, 4-7, 8-14, 15-19 and ≥20 Oocytes RetrievedTargeted response (8-14 oocytes)40.8 percentage of participants
FE 999049 (Follitropin Delta)Proportion of Participants With <4, 4-7, 8-14, 15-19 and ≥20 Oocytes RetrievedSevere hyperresponse (≥ 20 oocytes)4.7 percentage of participants
FE 999049 (Follitropin Delta)Proportion of Participants With <4, 4-7, 8-14, 15-19 and ≥20 Oocytes RetrievedLow response (<4 oocytes)8.3 percentage of participants
FOLLISTIM (Follitropin Beta)Proportion of Participants With <4, 4-7, 8-14, 15-19 and ≥20 Oocytes RetrievedSevere hyperresponse (≥ 20 oocytes)11.0 percentage of participants
FOLLISTIM (Follitropin Beta)Proportion of Participants With <4, 4-7, 8-14, 15-19 and ≥20 Oocytes RetrievedLow response (<4 oocytes)5.2 percentage of participants
FOLLISTIM (Follitropin Beta)Proportion of Participants With <4, 4-7, 8-14, 15-19 and ≥20 Oocytes RetrievedModerate response (4-7 oocytes)26.6 percentage of participants
FOLLISTIM (Follitropin Beta)Proportion of Participants With <4, 4-7, 8-14, 15-19 and ≥20 Oocytes RetrievedTargeted response (8-14 oocytes)42.8 percentage of participants
FOLLISTIM (Follitropin Beta)Proportion of Participants With <4, 4-7, 8-14, 15-19 and ≥20 Oocytes RetrievedHyperresponse (15-19 oocytes)14.5 percentage of participants
Comparison: Proportion of participants with \<4 oocytes retrieved (low response).p-value: 0.254Regression, Logistic
Comparison: Proportion of participants with 4-7 oocytes retrieved (moderate response).p-value: 0.041Regression, Logistic
Comparison: Proportion of participants with 8-14 oocytes retrieved (targeted response).p-value: 0.705Regression, Logistic
Comparison: Proportion of participants with 15-19 oocytes retrieved (hyperresponse).p-value: 0.183Regression, Logistic
Comparison: Proportion of participants with \>= (more than equal to) 20 oocytes retrieved (severe hyperresponse).p-value: 0.03Regression, Logistic
Secondary

Proportion of Participants With Blastocyst Transfer Cancellation Due to Excessive Ovarian Response / OHSS Risk

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureValue (NUMBER)
FE 999049 (Follitropin Delta)Proportion of Participants With Blastocyst Transfer Cancellation Due to Excessive Ovarian Response / OHSS Risk7.6 percentage of participants
FOLLISTIM (Follitropin Beta)Proportion of Participants With Blastocyst Transfer Cancellation Due to Excessive Ovarian Response / OHSS Risk11.3 percentage of participants
Comparison: Proportion of participants with blastocyst transfer cancellation.p-value: 0.244Regression, Logistic
Secondary

Proportion of Participants With Cycle Cancellation Due to Poor or Excessive Ovarian Response

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureGroupValue (NUMBER)
FE 999049 (Follitropin Delta)Proportion of Participants With Cycle Cancellation Due to Poor or Excessive Ovarian ResponseCycle cancelled due to poor ovarian response1.2 percentage of participants
FE 999049 (Follitropin Delta)Proportion of Participants With Cycle Cancellation Due to Poor or Excessive Ovarian ResponseCycle cancelled due to excessive ovarian response0 percentage of participants
FOLLISTIM (Follitropin Beta)Proportion of Participants With Cycle Cancellation Due to Poor or Excessive Ovarian ResponseCycle cancelled due to poor ovarian response0.6 percentage of participants
FOLLISTIM (Follitropin Beta)Proportion of Participants With Cycle Cancellation Due to Poor or Excessive Ovarian ResponseCycle cancelled due to excessive ovarian response1.1 percentage of participants
Secondary

Proportion of Participants With Extreme Ovarian Responses (Defined as <4, ≥15 or ≥20 Oocytes Retrieved) in Risk Population

Time frame: On the day of oocyte retrieval (up to 22 days after start of stimulation)

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureGroupValue (NUMBER)
FE 999049 (Follitropin Delta)Proportion of Participants With Extreme Ovarian Responses (Defined as <4, ≥15 or ≥20 Oocytes Retrieved) in Risk PopulationAMH < 15 pmol/L (<4 oocytes retrieved)11.6 percentage of participants
FE 999049 (Follitropin Delta)Proportion of Participants With Extreme Ovarian Responses (Defined as <4, ≥15 or ≥20 Oocytes Retrieved) in Risk PopulationAMH >= 15 pmol/L (>=15 oocytes retrieved)22.0 percentage of participants
FE 999049 (Follitropin Delta)Proportion of Participants With Extreme Ovarian Responses (Defined as <4, ≥15 or ≥20 Oocytes Retrieved) in Risk PopulationAMH >= 15 pmol/L (>=20 oocytes retrieved)8.0 percentage of participants
FOLLISTIM (Follitropin Beta)Proportion of Participants With Extreme Ovarian Responses (Defined as <4, ≥15 or ≥20 Oocytes Retrieved) in Risk PopulationAMH >= 15 pmol/L (>=15 oocytes retrieved)42.0 percentage of participants
FOLLISTIM (Follitropin Beta)Proportion of Participants With Extreme Ovarian Responses (Defined as <4, ≥15 or ≥20 Oocytes Retrieved) in Risk PopulationAMH < 15 pmol/L (<4 oocytes retrieved)12.3 percentage of participants
FOLLISTIM (Follitropin Beta)Proportion of Participants With Extreme Ovarian Responses (Defined as <4, ≥15 or ≥20 Oocytes Retrieved) in Risk PopulationAMH >= 15 pmol/L (>=20 oocytes retrieved)19.0 percentage of participants
Comparison: Proportion of participants with extreme ovarian responses: AMH \< 15 pmol/L (\<4 oocytes retrieved)p-value: 0.893Chi-squared
Comparison: Proportion of participants with extreme ovarian responses: AMH \>= 15 pmol/L (\>=15 oocytes retrieved)p-value: 0.002Chi-squared
Comparison: Proportion of participants with extreme ovarian responses: AMH \>= 15 pmol/L (\>=20 oocytes retrieved)p-value: 0.021Chi-squared
Secondary

Proportion of Participants With Preventive Interventions for Early Ovarian Hyperstimulation Syndrome (OHSS)

Time frame: ≤9 days after triggering of final follicular maturation

Population: The FAS comprised of all participants randomized or exposed.

ArmMeasureGroupValue (NUMBER)
FE 999049 (Follitropin Delta)Proportion of Participants With Preventive Interventions for Early Ovarian Hyperstimulation Syndrome (OHSS)Cycle cancellation0 percentage of participants
FE 999049 (Follitropin Delta)Proportion of Participants With Preventive Interventions for Early Ovarian Hyperstimulation Syndrome (OHSS)Triggering with GnRH agonist1.2 percentage of participants
FE 999049 (Follitropin Delta)Proportion of Participants With Preventive Interventions for Early Ovarian Hyperstimulation Syndrome (OHSS)Administration of dopamine agonist0.6 percentage of participants
FOLLISTIM (Follitropin Beta)Proportion of Participants With Preventive Interventions for Early Ovarian Hyperstimulation Syndrome (OHSS)Cycle cancellation1.1 percentage of participants
FOLLISTIM (Follitropin Beta)Proportion of Participants With Preventive Interventions for Early Ovarian Hyperstimulation Syndrome (OHSS)Triggering with GnRH agonist1.1 percentage of participants
FOLLISTIM (Follitropin Beta)Proportion of Participants With Preventive Interventions for Early Ovarian Hyperstimulation Syndrome (OHSS)Administration of dopamine agonist1.7 percentage of participants
Secondary

Proportions of Participants With Early OHSS (Including OHSS of Moderate/Severe Grade) and/or Preventive Interventions for Early OHSS

Defined as proportion of participants with early OHSS, early OHSS of moderate or severe grade, preventive interventions for early OHSS, early OHSS and/or preventive interventions for early OHSS, and early OHSS of moderate or severe grade and/or preventive interventions for early OHSS are presented.

Time frame: Up to 9 days after triggering of final follicular maturation

Population: The FAS comprised of all participants randomized and exposed.

ArmMeasureGroupValue (NUMBER)
FE 999049 (Follitropin Delta)Proportions of Participants With Early OHSS (Including OHSS of Moderate/Severe Grade) and/or Preventive Interventions for Early OHSSEarly OHSS (any grade)10.0 percentage of participants
FE 999049 (Follitropin Delta)Proportions of Participants With Early OHSS (Including OHSS of Moderate/Severe Grade) and/or Preventive Interventions for Early OHSSEarly OHSS (moderate/severe)6.5 percentage of participants
FE 999049 (Follitropin Delta)Proportions of Participants With Early OHSS (Including OHSS of Moderate/Severe Grade) and/or Preventive Interventions for Early OHSSEarly OHSS (any grade) and/or preventive10.6 percentage of participants
FE 999049 (Follitropin Delta)Proportions of Participants With Early OHSS (Including OHSS of Moderate/Severe Grade) and/or Preventive Interventions for Early OHSSEarly OHSS (moderate/severe) and/or preventive7.6 percentage of participants
FOLLISTIM (Follitropin Beta)Proportions of Participants With Early OHSS (Including OHSS of Moderate/Severe Grade) and/or Preventive Interventions for Early OHSSEarly OHSS (moderate/severe) and/or preventive16.4 percentage of participants
FOLLISTIM (Follitropin Beta)Proportions of Participants With Early OHSS (Including OHSS of Moderate/Severe Grade) and/or Preventive Interventions for Early OHSSEarly OHSS (any grade)18.6 percentage of participants
FOLLISTIM (Follitropin Beta)Proportions of Participants With Early OHSS (Including OHSS of Moderate/Severe Grade) and/or Preventive Interventions for Early OHSSEarly OHSS (any grade) and/or preventive20.9 percentage of participants
FOLLISTIM (Follitropin Beta)Proportions of Participants With Early OHSS (Including OHSS of Moderate/Severe Grade) and/or Preventive Interventions for Early OHSSEarly OHSS (moderate/severe)13.0 percentage of participants
Comparison: Proportions of participants with early OHSS (any grade).p-value: 0.017Regression, Logistic
Comparison: Proportion of participants with early OHSS (moderate/severe).p-value: 0.035Regression, Logistic
Comparison: Proportion of participants with early OHSS (any grade) and/or preventive interventions.p-value: 0.006Regression, Logistic
Comparison: Proportion of participants with early OHSS (moderate/severe) and/or preventive interventions.p-value: 0.009Regression, Logistic
Secondary

Proportions of Participants With Late OHSS (Including OHSS of Moderate/Severe Grade)

Defined as proportions of participants with late OHSS (including OHSS of moderate/severe grade). Late OHSS was defined as OHSS with onset \>9 days after triggering of final follicular maturation. The proportion of participants with late OHSS, and late OHSS of moderate or severe grade are presented. All OHSS cases were graded as mild, moderate, or severe.

Time frame: >9 days after triggering of final follicular maturation

Population: The FAS comprised of all participants randomized or exposed.

ArmMeasureGroupValue (NUMBER)
FE 999049 (Follitropin Delta)Proportions of Participants With Late OHSS (Including OHSS of Moderate/Severe Grade)Late OHSS (any grade)1.2 percentage of participants
FE 999049 (Follitropin Delta)Proportions of Participants With Late OHSS (Including OHSS of Moderate/Severe Grade)Late OHSS (moderate/severe)0.6 percentage of participants
FOLLISTIM (Follitropin Beta)Proportions of Participants With Late OHSS (Including OHSS of Moderate/Severe Grade)Late OHSS (any grade)1.1 percentage of participants
FOLLISTIM (Follitropin Beta)Proportions of Participants With Late OHSS (Including OHSS of Moderate/Severe Grade)Late OHSS (moderate/severe)1.1 percentage of participants
Comparison: Proportions of participants with late OHSS (any grade).p-value: 0.968Regression, Logistic
Comparison: Proportions of participants with late OHSS (moderate/severe).p-value: 0.582Regression, Logistic
Secondary

Size of Follicles at End-of-Stimulation

Defined as size characteristics of follicles at end-of-stimulation. Average size of 3 largest follicles has been presented in this endpoint.

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The FAS comprised of all randomized and exposed participants

ArmMeasureValue (MEAN)Dispersion
FE 999049 (Follitropin Delta)Size of Follicles at End-of-Stimulation19.2 mmStandard Deviation 1.5
FOLLISTIM (Follitropin Beta)Size of Follicles at End-of-Stimulation19.4 mmStandard Deviation 1.6
Comparison: The average size of 3 largest follicles was analyzed.p-value: 0.286van Elteren test
Secondary

Size of Follicles on Stimulation Day 6

Defined as size characteristics of follicles on stimulation Day 6. Average size of 3 largest follicles has been presented in this endpoint.

Time frame: At Day 6 of stimulation

Population: The FAS comprised of all randomized and exposed participants

ArmMeasureValue (MEAN)Dispersion
FE 999049 (Follitropin Delta)Size of Follicles on Stimulation Day 612.7 mmStandard Deviation 2.1
FOLLISTIM (Follitropin Beta)Size of Follicles on Stimulation Day 612.8 mmStandard Deviation 2
Comparison: The average size of 3 largest follicles was analyzed.p-value: 0.592van Elteren test
Secondary

Technical Malfunctions of the Administration Pens

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The safety analysis set comprised of all randomized and exposed participants.

ArmMeasureValue (NUMBER)
FE 999049 (Follitropin Delta)Technical Malfunctions of the Administration Pens0 percentage of participants
FOLLISTIM (Follitropin Beta)Technical Malfunctions of the Administration Pens0 percentage of participants
Secondary

Total Gonadotropin Dose of FE 999049

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The safety analysis set comprised of all randomized and exposed participants.

ArmMeasureValue (MEAN)Dispersion
FE 999049 (Follitropin Delta)Total Gonadotropin Dose of FE 99904983.5 μgStandard Deviation 28.9
Secondary

Total Gonadotropin Dose of FOLLISTIM

Time frame: End-of-stimulation (up to 20 stimulation days)

Population: The safety analysis set comprised of all randomized and exposed participants.

ArmMeasureValue (MEAN)Dispersion
FE 999049 (Follitropin Delta)Total Gonadotropin Dose of FOLLISTIM1499 IUStandard Deviation 514
Secondary

Vital Pregnancy Rate

Vital pregnancy was defined as at least one intrauterine gestational sac with fetal heart beat 5-6 weeks after transfer.

Time frame: 5-6 weeks after transfer (up to approximately 3 months after start of stimulation)

Population: The FAS comprised of all randomized and exposed participants.

ArmMeasureValue (NUMBER)
FE 999049 (Follitropin Delta)Vital Pregnancy Rate23.5 percentage of participants
FOLLISTIM (Follitropin Beta)Vital Pregnancy Rate21.5 percentage of participants
Comparison: Percentage of participants with vital pregnancy.95% CI: [-6.7, 10.8]

Source: ClinicalTrials.gov · Data processed: Mar 13, 2026