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To Investigate Efficacy and Safety of a Single Injection of Org 36286 for Ovarian Stimulation Using Daily Recombinant FSH as Reference (Ensure)(P05690/MK-8962-001)

A Phase III, Randomized, Double-blind, Active-controlled, Equivalence Clinical Trial to Investigate the Efficacy and Safety of a Single Injection of 100 µg Org 36286 (Corifollitropin Alfa) to Induce Multifollicular Development for Controlled Ovarian Stimulation (COS) Using Daily Recombinant FSH (recFSH) as a Reference

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00702845
Acronym
Ensure
Enrollment
397
Registered
2008-06-20
Start date
2006-12-28
Completion date
2007-11-15
Last updated
2024-06-18

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

Conditions

Infertility

Keywords

In vitro fertilization, Pharmacological effects of drugs, Hormones, Hormone Substitutes and Hormone Antagonists, Pharmacological Actions, Randomized, Multi-center, Multi-national, Double-blind, Active-controlled, Equivalence

Brief summary

Clinical trial objectives are to investigate the efficacy and safety of a single injection of 100 μg Org 36286 in women weighing 60 kg or less to induce multifollicular development for controlled ovarian stimulation (COS), using daily recFSH as a reference.

Detailed description

This is a randomized, double-blind, active-controlled, equivalence clinical trial investigating the efficacy and safety of a new treatment regimen with Org 36286, a recombinant gonadotropin applied to initiate and sustain follicular stimulation in COS for Assisted Reproductive Technology (ART). For this regimen, patients receive a single injection of Org 36286 and one week later, treatment is continued with daily recFSH up to the day of triggering final oocyte maturation. In the reference group patients receive daily injections of recFSH up to the day of triggering final oocyte maturation. Equivalence between the two treatment groups in the number of oocytes retrieved is the primary objective of this trial.

Interventions

DRUGcorifollitropin alfa (Org 36286)

100 µg corifollitropin alfa subcutaneous (SC) injection

150 IU recFSH SC injection

DRUGgonadatropin releasing hormone (GnRH) antagonist (ganirelix)

GnRH antagonist (ganirelix) administered SC at a dose of 0.25 mg/day

hCG 5,000 IU or 10,000 IU administered SC

BIOLOGICALprogesterone

Progesterone was started on the day of oocyte pick-up (OPU) and continued for at least 6 weeks or up to menses. Participants received at least 600 mg/day vaginally or 50 mg/day IM.

Placebo-recFSH administered at the equivalent volume of 150 IU/day.

Single SC injection of placebo-corifollitropin alfa administered on Day 2 or 3 of the menstrual cycle.

Open-label recFSH administered up to a maximum dose of 200 IU/day.

Sponsors

Organon and Co
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 36 Years
Healthy volunteers
No

Inclusion criteria

* Females of couples with an indication for COS and IVF or ICSI; * \>=18 and \<= 36 years of age at the time of signing informed consent; * Body weight \<= 60 kg and BMI \>= 18 and \<= 32 kg/m\^2; * Normal menstrual cycle length: 24-35 days; * Availability of ejaculatory sperm (use of donated and/or cryopreserved sperm is allowed); * Willing and able to sign informed consent.

Exclusion criteria

* History of/or any current (treated) endocrine abnormality; * History of ovarian hyper-response or ovarian hyperstimulation syndrome (OHSS); * History of/or current polycystic ovary syndrome (PCOS); * More than 20 basal antral follicles \<11 mm (both ovaries combined) as measured on USS in the early follicular phase (menstrual cycle day 2-5); * Less than 2 ovaries or any other ovarian abnormality (including endometrioma \> 10 mm; visible on USS); * Presence of unilateral or bilateral hydrosalphinx (visible on USS); * Presence of any clinically relevant pathology affecting the uterine cavity or fibroids \>= 5 cm; * More than three unsuccessful IVF cycles since the last established ongoing pregnancy (if applicable); * History of non- or low ovarian response to FSH/hMG treatment; * History of recurrent miscarriage (3 or more, even when unexplained); * FSH \> 12 IU/L or LH \> 12 IU/L as measured by the local laboratory (sample taken during the early follicular phase: menstrual cycle day 2-5); * Any clinically relevant abnormal laboratory value based on a sample taken during the screening phase; * Contraindications for the use of gonadotropins (e.g. tumors, pregnancy/lactation, undiagnosed vaginal bleeding, hypersensitivity, ovarian cysts); * Recent history of/or current epilepsy, HIV infection, diabetes, cardiovascular, gastro-intestinal, hepatic, renal or pulmonary disease; * Abnormal karyotyping of the patient or her partner (if karyotyping is performed); * Smoking more than 5 cigarettes per day; * History or presence of alcohol or drug abuse within 12 months prior to signing informed consent; * Previous use of Org 36286; * Use of hormonal preparations within 1 month prior to randomization; * Hypersensitivity to any of the concomitant medication prescribed as part of the treatment regimen in this protocol; * Administration of investigational drugs within three months prior to signing informed consent.

Design outcomes

Primary

MeasureTime frameDescription
Number of Cumulus-oocyte-complexes Retrieved, Per AttemptOne COS cycle with cumulus-oocyte-complex retrieval (up to a maximum total duration of 21 days)The primary efficacy parameter was defined as the number of cumulus-oocyte-complexes retrieved from participants in a controlled ovarian stimulation (COS) cycle for in vitro fertilization (IVF) and/or intracytoplasmic sperm injection (ICSI). For participants who did not have cumulus-oocyte-complex retrieval, the number retrieved was set to zero.

Secondary

MeasureTime frameDescription
Total Dose of recFSH Administered From Day 8 OnwardsStimulation Day 8 of COS cycle up to day of hCG administration (up to a maximum total duration of 19 stimulation days)Total dose of recFSH (IU) needed from Stimulation Day 8 onwards to reach the criterion for administration of hCG (at least 3 follicles \>=17mm).
Number of Days Treated With recFSHOne COS cycle (up to a maximum total duration of 19 stimulation days)Numbers of days treated with recFSH was defined as the total number of days participants received recFSH (excluding coasting days) until they reached the criterion for administration of hCG (at least 3 follicles \>=17mm).
Total Duration of Stimulation (Days)One COS cycle (up to a maximum total duration of 19 stimulation days)Total duration of stimulation was defined as the number of days from first drug administration up to and including the Day of hCG administration.
Serum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)Predose up to 2 weeks after ET (up to maximum of 6 weeks)Blood samples for assessment of serum FSH were taken prior to injection on Stimulation Day 1, Day 3, Day 5, Day 8, Day of hCG, Day of ET, at the visit two weeks after ET.
Serum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)Predose up to 2 weeks after ET (up to maximum of 6 weeks)Blood samples for assessment of serum LH were taken prior to injection on Stimulation Day 1, Day 3, Day 5, Day 8, Day of hCG, Day of ET, at the visit two weeks after ET.
Serum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)Predose up to 2 weeks after ET (up to maximum of 6 weeks)Blood samples for assessment of serum E2 were taken prior to injection on Stimulation Day 1, Day 3, Day 5, Day 8, Day of hCG, Day of ET, at the visit two weeks after ET.
Serum Progesterone (P) Levels (Restricted to Participants With hCG Injection)Predose up to 2 weeks after ET (up to maximum of 6 weeks)Blood samples for assessment of serum P were taken prior to injection on Stimulation Day 1, Day 3, Day 5, Day 8, Day of hCG, Day of ET, at the visit two weeks after ET.
Total Dose of recFSH AdministeredOne COS cycle (up to a maximum total duration of 19 stimulation days)Total dose of recFSH (IU) administered was defined as the total amount of recFSH needed by participants to reach the criterion for administration of hCG (at least 3 follicles \>=17mm).
Number and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationPredose up to day of hCG administration (up to a maximum total duration of 19 stimulation days, including day of hCG administration)For each participant, the number of follicles ≥11 mm, ≥15 mm, and ≥17 mm, documented by ultrasonography on defined days during the treatment cycle, was calculated.
Number and Quality of Oocytes Assessed Prior to ICSI (Restricted to Participants With ICSI Only)Up to 36 hours after administration of hCGThe number of oocytes used for ICSI was assessed and categorized based on their quality (i.e., metaphase I oocytes, metaphase II oocytes, and germinal vesicles stage oocytes).
Fertilization RateUp to 10 weeks after ETFertilization rate, defined as 100 times the ratio of the number of fertilized 2 pronuclei (PN) oocytes obtained and the number of oocytes incubated, was tabulated for each treatment group.
Number and Quality of Embryos Obtained at Day 3 (Restricted to Participants With IVF and/or ICSI)Post fertilization Day 3 (up to a maximum of 2 days after hCG administration)Embryo quality was rated Grade 1, 2, 3, or other. Grade 1 represented excellent quality; Grade 2 good quality; Grade 3 fair quality. Other grade embryos were those that did not qualify as Grade 1, 2, or 3.
Implantation Rate for Participants With ETUp to 6 weeks after ET within a treatment cycle (up to a maximum 10 weeks)The implantation rate was defined as 100 times the maximum number of gestational sacs as assessed by any ultrasound scan (USS) after ET divided by the number of embryos transferred (per participant), maximized to 100%.
Number of Participants With MiscarriagesUp to 10 weeks after ET (up to a maximum of 14 weeks)A miscarriage, also known as a spontaneous abortion, was defined as the loss of a fetus without induction or instrumentation.
Number of Participants With PregnanciesUp to 10 weeks after ET (up to a maximum of 14 weeks)A Biochemical Pregnancy was defined as a pregnancy proven by a biochemical pregnancy test. (Participants not having a positive biochemical pregnancy test result, but with an ultrasound showing at least one gestational sac were counted as having a biochemical pregnancy.) A Clinical Pregnancy was defined as the presence of at least one gestational sac as assessed by an USS scan. A Vital Pregnancy was considered the presence of at least one fetus with heart activity as assessed by USS. An Ongoing Pregnancy was defined as the presence of at least one fetus with heart activity at least 10 weeks after ET as assessed by USS or Doppler, or confirmed by live birth.
Serum Inhibin-B Levels (Restricted to Participants With hCG Injection)Predose up to 2 weeks after ET (up to maximum of 6 weeks)Blood samples for assessment of serum inhibin-B were taken prior to injection on Stimulation Day 1, Day 3, Day 5, Day 8, Day of hCG, Day of ET, at the visit two weeks after ET.

Participant flow

Participants by arm

ArmCount
100 μg Corifollitropin Alfa
Participants received a single SC injection of corifollitropin alfa 100 μg (Org 36286) on Day 2 or 3 of the menstrual cycle and daily placebo-recFSH injections (7 total) from Stimulation Day 1 up to and including Stimulation Day 7. Participants also received open-label recFSH (up to 200 IU/day) from Stimulation Day 8 onwards, up to and including Day of hCG administration. Participants also received GnRH antagonist ganirelix (0.25 mg) once daily SC starting on Stimulation Day 5 up to and including the Day of hCG (10,000 or 5,000 IU/USP). Participants also received progesterone (at least 600 mg/day vaginally or 50 mg/day IM), starting on day of OPU and continuing for at least 6 weeks or up to menses.
268
150 IU recFSH
Participants received a single SC injection of placebo-corifollitropin alfa administered on Day 2 or 3 of the menstrual cycle and daily SC recFSH 150 IU injections (7 total) from Stimulation Day 1 up to and including Stimulation Day 7. Participants also received open-label recFSH (up to 200 IU/day) from Stimulation Day 8 onwards, up to and including the day of hCG (10,000 or 5,000 IU/USP) administration. Participants also received the GnRH antagonist ganirelix (0.25 mg) once daily SC starting on Stimulation Day 5 up to and including the Day of hCG. Participants also received progesterone (at least 600 mg/day vaginally or 50 mg/day IM), starting on the day of OPU and continuing for at least 6 weeks or up to menses.
128
Total396

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyInsufficient ovarian response10
Overall StudyNo or abnormal fertilization42
Overall StudyNo/too few/bad quality embryos retrieved71
Overall StudyNo/too few/bad quality oocytes retrieved22
Overall StudyNot randomized01
Overall StudyPatient's decision21
Overall StudyRisk of ovarian hyperstimulation synd.10
Overall StudyToo high ovarian response51

Baseline characteristics

Characteristic100 μg Corifollitropin Alfa150 IU recFSHTotal
Age, Continuous30.9 Years
STANDARD_DEVIATION 3.2
31.1 Years
STANDARD_DEVIATION 3
31.0 Years
STANDARD_DEVIATION 3.1
Sex: Female, Male
Female
268 Participants128 Participants396 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
107 / 26855 / 129
serious
Total, serious adverse events
20 / 2689 / 129

Outcome results

Primary

Number of Cumulus-oocyte-complexes Retrieved, Per Attempt

The primary efficacy parameter was defined as the number of cumulus-oocyte-complexes retrieved from participants in a controlled ovarian stimulation (COS) cycle for in vitro fertilization (IVF) and/or intracytoplasmic sperm injection (ICSI). For participants who did not have cumulus-oocyte-complex retrieval, the number retrieved was set to zero.

Time frame: One COS cycle with cumulus-oocyte-complex retrieval (up to a maximum total duration of 21 days)

Population: Intent-to-Treat (ITT) Group, which consisted of all randomized participants who received corifollitropin alfa or recFSH.

ArmMeasureValue (MEAN)Dispersion
100 μg Corifollitropin AlfaNumber of Cumulus-oocyte-complexes Retrieved, Per Attempt13.3 Number of cumulus-oocyte-complexesStandard Deviation 7.3
150 IU recFSHNumber of Cumulus-oocyte-complexes Retrieved, Per Attempt10.6 Number of cumulus-oocyte-complexesStandard Deviation 5.9
p-value: <0.00195% CI: [1.2, 3.9]ANOVA
Secondary

Fertilization Rate

Fertilization rate, defined as 100 times the ratio of the number of fertilized 2 pronuclei (PN) oocytes obtained and the number of oocytes incubated, was tabulated for each treatment group.

Time frame: Up to 10 weeks after ET

Population: Participants from the ITT Group (consisting of all randomized participants who received corifollitropin alfa or recFSH) who received fertilized oocytes.

ArmMeasureValue (MEAN)Dispersion
100 μg Corifollitropin AlfaFertilization Rate67.6 PercentageStandard Deviation 22.5
150 IU recFSHFertilization Rate67.7 PercentageStandard Deviation 25.4
Secondary

Implantation Rate for Participants With ET

The implantation rate was defined as 100 times the maximum number of gestational sacs as assessed by any ultrasound scan (USS) after ET divided by the number of embryos transferred (per participant), maximized to 100%.

Time frame: Up to 6 weeks after ET within a treatment cycle (up to a maximum 10 weeks)

Population: Participants from the ITT Group (consisting of all randomized participants who received corifollitropin alfa or recFSH) who underwent ET.

ArmMeasureValue (MEAN)Dispersion
100 μg Corifollitropin AlfaImplantation Rate for Participants With ET23.6 PercentageStandard Deviation 37.4
150 IU recFSHImplantation Rate for Participants With ET28.5 PercentageStandard Deviation 38.6
Secondary

Number and Quality of Embryos Obtained at Day 3 (Restricted to Participants With IVF and/or ICSI)

Embryo quality was rated Grade 1, 2, 3, or other. Grade 1 represented excellent quality; Grade 2 good quality; Grade 3 fair quality. Other grade embryos were those that did not qualify as Grade 1, 2, or 3.

Time frame: Post fertilization Day 3 (up to a maximum of 2 days after hCG administration)

Population: Participants from the ITT Group (consisting of all randomized participants who received corifollitropin alfa or recFSH) who underwent IVF and/or ICSI.

ArmMeasureGroupValue (MEAN)Dispersion
100 μg Corifollitropin AlfaNumber and Quality of Embryos Obtained at Day 3 (Restricted to Participants With IVF and/or ICSI)Total (n=259,123)7.2 Number of embryosStandard Deviation 4.1
100 μg Corifollitropin AlfaNumber and Quality of Embryos Obtained at Day 3 (Restricted to Participants With IVF and/or ICSI)Good quality3.4 Number of embryosStandard Deviation 3
100 μg Corifollitropin AlfaNumber and Quality of Embryos Obtained at Day 3 (Restricted to Participants With IVF and/or ICSI)Grade 11.7 Number of embryosStandard Deviation 2.3
100 μg Corifollitropin AlfaNumber and Quality of Embryos Obtained at Day 3 (Restricted to Participants With IVF and/or ICSI)Grade 21.8 Number of embryosStandard Deviation 1.9
100 μg Corifollitropin AlfaNumber and Quality of Embryos Obtained at Day 3 (Restricted to Participants With IVF and/or ICSI)Grade 32.8 Number of embryosStandard Deviation 2.8
100 μg Corifollitropin AlfaNumber and Quality of Embryos Obtained at Day 3 (Restricted to Participants With IVF and/or ICSI)Other1.0 Number of embryosStandard Deviation 1.6
150 IU recFSHNumber and Quality of Embryos Obtained at Day 3 (Restricted to Participants With IVF and/or ICSI)Grade 32.4 Number of embryosStandard Deviation 2.4
150 IU recFSHNumber and Quality of Embryos Obtained at Day 3 (Restricted to Participants With IVF and/or ICSI)Total (n=259,123)6.2 Number of embryosStandard Deviation 4
150 IU recFSHNumber and Quality of Embryos Obtained at Day 3 (Restricted to Participants With IVF and/or ICSI)Grade 21.6 Number of embryosStandard Deviation 1.9
150 IU recFSHNumber and Quality of Embryos Obtained at Day 3 (Restricted to Participants With IVF and/or ICSI)Good quality3.0 Number of embryosStandard Deviation 3
150 IU recFSHNumber and Quality of Embryos Obtained at Day 3 (Restricted to Participants With IVF and/or ICSI)Other0.7 Number of embryosStandard Deviation 1.7
150 IU recFSHNumber and Quality of Embryos Obtained at Day 3 (Restricted to Participants With IVF and/or ICSI)Grade 11.4 Number of embryosStandard Deviation 2.1
Secondary

Number and Quality of Oocytes Assessed Prior to ICSI (Restricted to Participants With ICSI Only)

The number of oocytes used for ICSI was assessed and categorized based on their quality (i.e., metaphase I oocytes, metaphase II oocytes, and germinal vesicles stage oocytes).

Time frame: Up to 36 hours after administration of hCG

Population: Participants from the ITT Group (consisting of all randomized participants who received corifollitropin alfa or recFSH) who underwent ICSI.

ArmMeasureGroupValue (MEAN)Dispersion
100 μg Corifollitropin AlfaNumber and Quality of Oocytes Assessed Prior to ICSI (Restricted to Participants With ICSI Only)Oocytes assessed prior to ICSI12.7 Number of oocytesStandard Deviation 6.8
100 μg Corifollitropin AlfaNumber and Quality of Oocytes Assessed Prior to ICSI (Restricted to Participants With ICSI Only)Metaphase I oocytes0.8 Number of oocytesStandard Deviation 1.2
100 μg Corifollitropin AlfaNumber and Quality of Oocytes Assessed Prior to ICSI (Restricted to Participants With ICSI Only)Metaphase II oocytes10.7 Number of oocytesStandard Deviation 6.4
100 μg Corifollitropin AlfaNumber and Quality of Oocytes Assessed Prior to ICSI (Restricted to Participants With ICSI Only)Germinal vesicles stage oocytes1.1 Number of oocytesStandard Deviation 1.6
150 IU recFSHNumber and Quality of Oocytes Assessed Prior to ICSI (Restricted to Participants With ICSI Only)Germinal vesicles stage oocytes1.3 Number of oocytesStandard Deviation 2.1
150 IU recFSHNumber and Quality of Oocytes Assessed Prior to ICSI (Restricted to Participants With ICSI Only)Oocytes assessed prior to ICSI9.9 Number of oocytesStandard Deviation 5.4
150 IU recFSHNumber and Quality of Oocytes Assessed Prior to ICSI (Restricted to Participants With ICSI Only)Metaphase II oocytes7.8 Number of oocytesStandard Deviation 4.8
150 IU recFSHNumber and Quality of Oocytes Assessed Prior to ICSI (Restricted to Participants With ICSI Only)Metaphase I oocytes0.7 Number of oocytesStandard Deviation 1.2
Secondary

Number and Size Distribution of Follicles During Stimulation and on the Day of hCG Administration

For each participant, the number of follicles ≥11 mm, ≥15 mm, and ≥17 mm, documented by ultrasonography on defined days during the treatment cycle, was calculated.

Time frame: Predose up to day of hCG administration (up to a maximum total duration of 19 stimulation days, including day of hCG administration)

Population: Participants from the ITT Group (consisting of all randomized participants who received corifollitropin alfa or recFSH) who received hCG.

ArmMeasureGroupValue (MEAN)Dispersion
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 15, >=11mm (n=1,1)7.0 FolliclesStandard Deviation 0
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 5, >=15mm (n=267,128)0.3 FolliclesStandard Deviation 0.7
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 15, >=15mm (n=1,1)4.0 FolliclesStandard Deviation 0
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 7, >=15mm (n=30,12)4.5 FolliclesStandard Deviation 4.7
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 15, >=17mm (n=1,1)2.0 FolliclesStandard Deviation 0
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 3, >=11mm (n=268,128)0.6 FolliclesStandard Deviation 1.7
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationDay of hCG administration, >=11mm (n=266,127)14.9 FolliclesStandard Deviation 6.6
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 7, >=17mm (n=30,12)1.8 FolliclesStandard Deviation 2.8
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationDay of hCG administration, >=15mm (n=266,127)9.4 FolliclesStandard Deviation 4.9
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 5, >=17mm (n=267,128)0.0 FolliclesStandard Deviation 0.2
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationDay of hCG administration, >=17mm (n=266,127)5.3 FolliclesStandard Deviation 3
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 8, >=11mm (n=259,121)11.8 FolliclesStandard Deviation 6.1
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 1, >=11mm (n=266,124)0.0 FolliclesStandard Deviation 0.1
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 3, >=17mm (n=268,128)0.0 FolliclesStandard Deviation 0
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 1, >=15mm (n=266,124)0.0 FolliclesStandard Deviation 0.1
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 8, >=15mm (n=259,121)5.0 FolliclesStandard Deviation 4.6
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 9, >=11mm (n=185,76)13.4 FolliclesStandard Deviation 6.5
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 6, >=11mm (n=9,5)7.6 FolliclesStandard Deviation 5.2
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 9, >=15mm (n=185,76)6.9 FolliclesStandard Deviation 4.7
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 8, >=17mm (n=259,121)2.0 FolliclesStandard Deviation 3
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 9, >=17mm (n=185,76)2.6 FolliclesStandard Deviation 2.5
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 1, >=17mm (n=266,124)0.0 FolliclesStandard Deviation 0.1
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 10, >=11mm (n=101,40)13.9 FolliclesStandard Deviation 6.7
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 13, >=15mm (n=5,4)10.6 FolliclesStandard Deviation 8.6
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 10, >=15mm (n=101,40)7.4 FolliclesStandard Deviation 4.9
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 6, >=15mm (n=9,5)1.8 FolliclesStandard Deviation 3
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 10, >=17mm (n=101,40)3.6 FolliclesStandard Deviation 3.5
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 13, >=17mm (n=5,4)4.4 FolliclesStandard Deviation 6.2
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 11, >=11mm (n=38,14)13.9 FolliclesStandard Deviation 6.7
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 5, >=11mm (n=267,128)4.7 FolliclesStandard Deviation 3.6
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 11, >=15mm (n=38,14)7.7 FolliclesStandard Deviation 5.7
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 14, >=11mm (n=2,1)13.5 FolliclesStandard Deviation 12
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 11, >=17mm (n=38,14)3.9 FolliclesStandard Deviation 3.8
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 6, >=17mm (n=9,5)0.7 FolliclesStandard Deviation 1.3
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 12, >=11mm (n=17,6)12.7 FolliclesStandard Deviation 5.4
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 3, >=15mm (n=268,128)0.0 FolliclesStandard Deviation 0.1
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 12, >=15mm (n=17,6)6.8 FolliclesStandard Deviation 3.5
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 14, >=17mm (n=2,1)6.0 FolliclesStandard Deviation 5.7
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 12, >=17mm (n=17,6)3.5 FolliclesStandard Deviation 2.8
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 7, >=11mm (n=30,12)11.9 FolliclesStandard Deviation 6.8
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 13, >=11mm (n=5,4)17.0 FolliclesStandard Deviation 9.5
100 μg Corifollitropin AlfaNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 14, >=15mm (n=2,1)10.5 FolliclesStandard Deviation 12
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 11, >=15mm (n=38,14)7.1 FolliclesStandard Deviation 4.6
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 1, >=17mm (n=266,124)0.0 FolliclesStandard Deviation 0
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 3, >=11mm (n=268,128)0.5 FolliclesStandard Deviation 0.9
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 3, >=15mm (n=268,128)0.0 FolliclesStandard Deviation 0
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 3, >=17mm (n=268,128)0.0 FolliclesStandard Deviation 0
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 5, >=11mm (n=267,128)4.1 FolliclesStandard Deviation 3.2
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 5, >=15mm (n=267,128)0.3 FolliclesStandard Deviation 0.9
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 5, >=17mm (n=267,128)0.0 FolliclesStandard Deviation 0.1
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 6, >=11mm (n=9,5)8.6 FolliclesStandard Deviation 6.3
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 6, >=15mm (n=9,5)4.0 FolliclesStandard Deviation 3.8
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 6, >=17mm (n=9,5)1.8 FolliclesStandard Deviation 2
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 7, >=11mm (n=30,12)9.2 FolliclesStandard Deviation 4.4
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 7, >=15mm (n=30,12)3.3 FolliclesStandard Deviation 2.8
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 7, >=17mm (n=30,12)1.1 FolliclesStandard Deviation 1.3
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 8, >=11mm (n=259,121)10.6 FolliclesStandard Deviation 5.3
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 8, >=15mm (n=259,121)5.1 FolliclesStandard Deviation 4.5
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 13, >=11mm (n=5,4)10.3 FolliclesStandard Deviation 5.4
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 13, >=15mm (n=5,4)6.3 FolliclesStandard Deviation 4.5
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 13, >=17mm (n=5,4)4.0 FolliclesStandard Deviation 3.4
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 14, >=11mm (n=2,1)3.0 FolliclesStandard Deviation 0
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 14, >=15mm (n=2,1)0.0 FolliclesStandard Deviation 0
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 14, >=17mm (n=2,1)0.0 FolliclesStandard Deviation 0
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 15, >=11mm (n=1,1)4.0 FolliclesStandard Deviation 0
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 15, >=15mm (n=1,1)4.0 FolliclesStandard Deviation 0
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 15, >=17mm (n=1,1)3.0 FolliclesStandard Deviation 0
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationDay of hCG administration, >=11mm (n=266,127)12.9 FolliclesStandard Deviation 5.8
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationDay of hCG administration, >=15mm (n=266,127)8.5 FolliclesStandard Deviation 4.4
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationDay of hCG administration, >=17mm (n=266,127)5.1 FolliclesStandard Deviation 3
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 1, >=11mm (n=266,124)0.0 FolliclesStandard Deviation 0.2
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 8, >=17mm (n=259,121)2.4 FolliclesStandard Deviation 3.1
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 9, >=11mm (n=185,76)11.1 FolliclesStandard Deviation 5
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 9, >=15mm (n=185,76)6.0 FolliclesStandard Deviation 4.5
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 9, >=17mm (n=185,76)2.6 FolliclesStandard Deviation 2.5
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 10, >=11mm (n=101,40)13.0 FolliclesStandard Deviation 6.4
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 10, >=15mm (n=101,40)7.5 FolliclesStandard Deviation 5.3
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 10, >=17mm (n=101,40)4.0 FolliclesStandard Deviation 4
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 11, >=11mm (n=38,14)11.6 FolliclesStandard Deviation 7.1
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 1, >=15mm (n=266,124)0.0 FolliclesStandard Deviation 0
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 11, >=17mm (n=38,14)3.8 FolliclesStandard Deviation 3.5
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 12, >=11mm (n=17,6)9.3 FolliclesStandard Deviation 4
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 12, >=15mm (n=17,6)5.2 FolliclesStandard Deviation 2.9
150 IU recFSHNumber and Size Distribution of Follicles During Stimulation and on the Day of hCG AdministrationStimulation Day 12, >=17mm (n=17,6)2.7 FolliclesStandard Deviation 2.1
Secondary

Number of Days Treated With recFSH

Numbers of days treated with recFSH was defined as the total number of days participants received recFSH (excluding coasting days) until they reached the criterion for administration of hCG (at least 3 follicles \>=17mm).

Time frame: One COS cycle (up to a maximum total duration of 19 stimulation days)

Population: Participants from the ITT Group (consisting of all randomized participants who received corifollitropin alfa or recFSH) who received hCG.

ArmMeasureValue (MEDIAN)
100 μg Corifollitropin AlfaNumber of Days Treated With recFSH2.0 Days
150 IU recFSHNumber of Days Treated With recFSH9.0 Days
Secondary

Number of Participants With Miscarriages

A miscarriage, also known as a spontaneous abortion, was defined as the loss of a fetus without induction or instrumentation.

Time frame: Up to 10 weeks after ET (up to a maximum of 14 weeks)

Population: Participants from the ITT Group (consisting of all randomized participants who received corifollitropin alfa or recFSH) who had a biological pregnancy.

ArmMeasureGroupValue (NUMBER)Dispersion
100 μg Corifollitropin AlfaNumber of Participants With MiscarriagesPer clinical pregnancy (n=78,48)10 Participants 12.8
100 μg Corifollitropin AlfaNumber of Participants With MiscarriagesPer vital pregnancy (n=69,45)1 Participants
150 IU recFSHNumber of Participants With MiscarriagesPer clinical pregnancy (n=78,48)4 Participants 8.3
150 IU recFSHNumber of Participants With MiscarriagesPer vital pregnancy (n=69,45)1 Participants
Secondary

Number of Participants With Pregnancies

A Biochemical Pregnancy was defined as a pregnancy proven by a biochemical pregnancy test. (Participants not having a positive biochemical pregnancy test result, but with an ultrasound showing at least one gestational sac were counted as having a biochemical pregnancy.) A Clinical Pregnancy was defined as the presence of at least one gestational sac as assessed by an USS scan. A Vital Pregnancy was considered the presence of at least one fetus with heart activity as assessed by USS. An Ongoing Pregnancy was defined as the presence of at least one fetus with heart activity at least 10 weeks after ET as assessed by USS or Doppler, or confirmed by live birth.

Time frame: Up to 10 weeks after ET (up to a maximum of 14 weeks)

Population: ITT Group, which consisted of all randomized participants who received corifollitropin alfa or recFSH.

ArmMeasureGroupValue (NUMBER)
100 μg Corifollitropin AlfaNumber of Participants With PregnanciesOngoing pregnancy, per attempt (n=268,128)68 Participants
100 μg Corifollitropin AlfaNumber of Participants With PregnanciesClinical pregnancy, per attempt (n=268,128)78 Participants
100 μg Corifollitropin AlfaNumber of Participants With PregnanciesBiochemical pregnancy, per attempt (n=268,128)101 Participants
100 μg Corifollitropin AlfaNumber of Participants With PregnanciesClinical pregnancy, per ET (n=246,121)78 Participants
100 μg Corifollitropin AlfaNumber of Participants With PregnanciesOngoing pregnancy, per ET (n=246,121)68 Participants
100 μg Corifollitropin AlfaNumber of Participants With PregnanciesVital pregnancy, per attempt (n=268,128)69 Participants
100 μg Corifollitropin AlfaNumber of Participants With PregnanciesBiochemical pregnancy, per ET (n=246,121)101 Participants
100 μg Corifollitropin AlfaNumber of Participants With PregnanciesVital pregnancy, per ET (n=246,121)69 Participants
150 IU recFSHNumber of Participants With PregnanciesBiochemical pregnancy, per ET (n=246,121)58 Participants
150 IU recFSHNumber of Participants With PregnanciesOngoing pregnancy, per attempt (n=268,128)44 Participants
150 IU recFSHNumber of Participants With PregnanciesOngoing pregnancy, per ET (n=246,121)44 Participants
150 IU recFSHNumber of Participants With PregnanciesBiochemical pregnancy, per attempt (n=268,128)58 Participants
150 IU recFSHNumber of Participants With PregnanciesVital pregnancy, per ET (n=246,121)45 Participants
150 IU recFSHNumber of Participants With PregnanciesClinical pregnancy, per attempt (n=268,128)48 Participants
150 IU recFSHNumber of Participants With PregnanciesClinical pregnancy, per ET (n=246,121)48 Participants
150 IU recFSHNumber of Participants With PregnanciesVital pregnancy, per attempt (n=268,128)45 Participants
Secondary

Serum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)

Blood samples for assessment of serum E2 were taken prior to injection on Stimulation Day 1, Day 3, Day 5, Day 8, Day of hCG, Day of ET, at the visit two weeks after ET.

Time frame: Predose up to 2 weeks after ET (up to maximum of 6 weeks)

Population: Participants from the ITT Group (consisting of all randomized participants who received corifollitropin alfa or recFSH) who received hCG.

ArmMeasureGroupValue (MEDIAN)Dispersion
100 μg Corifollitropin AlfaSerum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)Stimulation Day 5 (n=265,127)1901.06 pmol/LFull Range 1490.48
100 μg Corifollitropin AlfaSerum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)Day of hCG injection (n=262,126)4440.70 pmol/LFull Range 3355.95
100 μg Corifollitropin AlfaSerum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)Stimulation Day 3 (n=265,127)803.73 pmol/LFull Range 553.18
100 μg Corifollitropin AlfaSerum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)Day of ET (n=242,121)3475.49 pmol/LFull Range 2640.49
100 μg Corifollitropin AlfaSerum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)Stimulation Day 8 (n=255,121)2899.30 pmol/LFull Range 2632.83
100 μg Corifollitropin AlfaSerum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)2 weeks after ET (n=245,121)168.45 pmol/LFull Range 3002.09
100 μg Corifollitropin AlfaSerum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)Stimulation Day 1 (pre-dose) (n=265,122)118.17 pmol/LFull Range 53.18
150 IU recFSHSerum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)2 weeks after ET (n=245,121)392.69 pmol/LFull Range 2889.61
150 IU recFSHSerum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)Stimulation Day 1 (pre-dose) (n=265,122)120.38 pmol/LFull Range 71.07
150 IU recFSHSerum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)Stimulation Day 3 (n=265,127)506.46 pmol/LFull Range 369.66
150 IU recFSHSerum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)Stimulation Day 5 (n=265,127)1295.51 pmol/LFull Range 1015.75
150 IU recFSHSerum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)Stimulation Day 8 (n=255,121)3167.21 pmol/LFull Range 2710.16
150 IU recFSHSerum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)Day of hCG injection (n=262,126)4440.70 pmol/LFull Range 3114.93
150 IU recFSHSerum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)Day of ET (n=242,121)3670.00 pmol/LFull Range 2946.26
Secondary

Serum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)

Blood samples for assessment of serum FSH were taken prior to injection on Stimulation Day 1, Day 3, Day 5, Day 8, Day of hCG, Day of ET, at the visit two weeks after ET.

Time frame: Predose up to 2 weeks after ET (up to maximum of 6 weeks)

Population: Participants from the ITT Group (consisting of all randomized participants who received corifollitropin alfa or recFSH) who received hCG.

ArmMeasureGroupValue (MEDIAN)Dispersion
100 μg Corifollitropin AlfaSerum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 1 (pre-dose) (n=265,122)6.46 IU/LFull Range 1.84
100 μg Corifollitropin AlfaSerum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 5 (n=265,127)19.50 IU/LFull Range 4.52
100 μg Corifollitropin AlfaSerum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)2 weeks after ET (n=245,121)4.46 IU/LFull Range 3.53
100 μg Corifollitropin AlfaSerum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 8 (n=255,121)10.10 IU/LFull Range 2.12
100 μg Corifollitropin AlfaSerum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 3 (n=265,127)26.30 IU/LFull Range 7.14
100 μg Corifollitropin AlfaSerum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)Day of hCG injection (n=262,126)11.50 IU/LFull Range 2.65
100 μg Corifollitropin AlfaSerum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)Day of ET (n=242,121)2.52 IU/LFull Range 1.05
150 IU recFSHSerum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)Day of hCG injection (n=262,126)10.65 IU/LFull Range 3.57
150 IU recFSHSerum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)Day of ET (n=242,121)1.32 IU/LFull Range 1.02
150 IU recFSHSerum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)2 weeks after ET (n=245,121)1.90 IU/L
150 IU recFSHSerum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 1 (pre-dose) (n=265,122)6.51 IU/LFull Range 1.89
150 IU recFSHSerum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 3 (n=265,127)9.18 IU/LFull Range 2.48
150 IU recFSHSerum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 5 (n=265,127)10.20 IU/LFull Range 2.98
150 IU recFSHSerum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 8 (n=255,121)10.30 IU/LFull Range 2.26
Secondary

Serum Inhibin-B Levels (Restricted to Participants With hCG Injection)

Blood samples for assessment of serum inhibin-B were taken prior to injection on Stimulation Day 1, Day 3, Day 5, Day 8, Day of hCG, Day of ET, at the visit two weeks after ET.

Time frame: Predose up to 2 weeks after ET (up to maximum of 6 weeks)

Population: Participants from the ITT Group (consisting of all randomized participants who received corifollitropin alfa or recFSH) who received hCG.

ArmMeasureGroupValue (MEDIAN)Dispersion
100 μg Corifollitropin AlfaSerum Inhibin-B Levels (Restricted to Participants With hCG Injection)Stimulation Day 5 (n=264,127)598.00 pg/mLFull Range 527.96
100 μg Corifollitropin AlfaSerum Inhibin-B Levels (Restricted to Participants With hCG Injection)Day of hCG injection (n=262,126)729.50 pg/mLFull Range 721.2
100 μg Corifollitropin AlfaSerum Inhibin-B Levels (Restricted to Participants With hCG Injection)Stimulation Day 3 (n=265,127)351.00 pg/mLFull Range 216.79
100 μg Corifollitropin AlfaSerum Inhibin-B Levels (Restricted to Participants With hCG Injection)Day of ET (n=242,121)18.20 pg/mLFull Range 25.49
100 μg Corifollitropin AlfaSerum Inhibin-B Levels (Restricted to Participants With hCG Injection)Stimulation Day 8 (n=255,121)619.00 pg/mLFull Range 643.76
100 μg Corifollitropin AlfaSerum Inhibin-B Levels (Restricted to Participants With hCG Injection)2 weeks after ET (n=245,121)17.50 pg/mL
100 μg Corifollitropin AlfaSerum Inhibin-B Levels (Restricted to Participants With hCG Injection)Stimulation Day 1 (pre-dose) (n=265,123)54.20 pg/mLFull Range 26.4
150 IU recFSHSerum Inhibin-B Levels (Restricted to Participants With hCG Injection)2 weeks after ET (n=245,121)NA pg/mL
150 IU recFSHSerum Inhibin-B Levels (Restricted to Participants With hCG Injection)Stimulation Day 1 (pre-dose) (n=265,123)57.80 pg/mLFull Range 168.69
150 IU recFSHSerum Inhibin-B Levels (Restricted to Participants With hCG Injection)Stimulation Day 3 (n=265,127)259.00 pg/mLFull Range 143.21
150 IU recFSHSerum Inhibin-B Levels (Restricted to Participants With hCG Injection)Stimulation Day 5 (n=264,127)489.00 pg/mLFull Range 348.64
150 IU recFSHSerum Inhibin-B Levels (Restricted to Participants With hCG Injection)Stimulation Day 8 (n=255,121)650.00 pg/mLFull Range 536.39
150 IU recFSHSerum Inhibin-B Levels (Restricted to Participants With hCG Injection)Day of hCG injection (n=262,126)615.50 pg/mLFull Range 571.49
150 IU recFSHSerum Inhibin-B Levels (Restricted to Participants With hCG Injection)Day of ET (n=242,121)17.00 pg/mLFull Range 29.36
Secondary

Serum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)

Blood samples for assessment of serum LH were taken prior to injection on Stimulation Day 1, Day 3, Day 5, Day 8, Day of hCG, Day of ET, at the visit two weeks after ET.

Time frame: Predose up to 2 weeks after ET (up to maximum of 6 weeks)

Population: Participants from the ITT Group (consisting of all randomized participants who received corifollitropin alfa or recFSH) who received hCG.

ArmMeasureGroupValue (MEDIAN)Dispersion
100 μg Corifollitropin AlfaSerum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 1 (pre-dose) (n=265,122)4.46 IU/LFull Range 1.81
100 μg Corifollitropin AlfaSerum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 3 (n=265,127)1.18 IU/LFull Range 0.8
100 μg Corifollitropin AlfaSerum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 5 (n=264,127)1.91 IU/LFull Range 3.7
100 μg Corifollitropin AlfaSerum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 8 (n=255,121)0.82 IU/L
100 μg Corifollitropin AlfaSerum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)Day of hCG injection (n=262,126)0.88 IU/L
100 μg Corifollitropin AlfaSerum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)Day of ET (n=242,121)NA IU/L
100 μg Corifollitropin AlfaSerum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)2 weeks after ET (n=245,121)2.38 IU/L
150 IU recFSHSerum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 1 (pre-dose) (n=265,122)4.12 IU/LFull Range 1.94
150 IU recFSHSerum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)Day of hCG injection (n=262,126)1.30 IU/LFull Range 2.06
150 IU recFSHSerum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 3 (n=265,127)1.46 IU/LFull Range 1
150 IU recFSHSerum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)2 weeks after ET (n=245,121)1.02 IU/L
150 IU recFSHSerum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 5 (n=264,127)1.49 IU/LFull Range 7.26
150 IU recFSHSerum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)Day of ET (n=242,121)NA IU/L
150 IU recFSHSerum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)Stimulation Day 8 (n=255,121)1.60 IU/LFull Range 2.35
Secondary

Serum Progesterone (P) Levels (Restricted to Participants With hCG Injection)

Blood samples for assessment of serum P were taken prior to injection on Stimulation Day 1, Day 3, Day 5, Day 8, Day of hCG, Day of ET, at the visit two weeks after ET.

Time frame: Predose up to 2 weeks after ET (up to maximum of 6 weeks)

Population: Participants from the ITT Group (consisting of all randomized participants who received corifollitropin alfa or recFSH) who received hCG.

ArmMeasureGroupValue (MEDIAN)Dispersion
100 μg Corifollitropin AlfaSerum Progesterone (P) Levels (Restricted to Participants With hCG Injection)Day of ET (n=242,121)421.35 nmol/LFull Range 223.93
100 μg Corifollitropin AlfaSerum Progesterone (P) Levels (Restricted to Participants With hCG Injection)Stimulation Day 8 (n=255,121)1.39 nmol/LFull Range 0.64
100 μg Corifollitropin AlfaSerum Progesterone (P) Levels (Restricted to Participants With hCG Injection)Day of hCG injection (n=262,126)2.10 nmol/LFull Range 1.34
100 μg Corifollitropin AlfaSerum Progesterone (P) Levels (Restricted to Participants With hCG Injection)2 weeks after ET (n=244,120)38.64 nmol/LFull Range 263.88
100 μg Corifollitropin AlfaSerum Progesterone (P) Levels (Restricted to Participants With hCG Injection)Stimulation Day 1 (pre-dose) (n=264,120)1.36 nmol/LFull Range 2.9
100 μg Corifollitropin AlfaSerum Progesterone (P) Levels (Restricted to Participants With hCG Injection)Stimulation Day 3 (n=263,126)1.23 nmol/L
100 μg Corifollitropin AlfaSerum Progesterone (P) Levels (Restricted to Participants With hCG Injection)Stimulation Day 5 (n=265,127)1.65 nmol/LFull Range 3.27
150 IU recFSHSerum Progesterone (P) Levels (Restricted to Participants With hCG Injection)Stimulation Day 1 (pre-dose) (n=264,120)1.40 nmol/LFull Range 0.97
150 IU recFSHSerum Progesterone (P) Levels (Restricted to Participants With hCG Injection)Stimulation Day 5 (n=265,127)1.28 nmol/L
150 IU recFSHSerum Progesterone (P) Levels (Restricted to Participants With hCG Injection)2 weeks after ET (n=244,120)51.99 nmol/LFull Range 236.91
150 IU recFSHSerum Progesterone (P) Levels (Restricted to Participants With hCG Injection)Stimulation Day 8 (n=255,121)2.03 nmol/LFull Range 1.11
150 IU recFSHSerum Progesterone (P) Levels (Restricted to Participants With hCG Injection)Stimulation Day 3 (n=263,126)NA nmol/L
150 IU recFSHSerum Progesterone (P) Levels (Restricted to Participants With hCG Injection)Day of hCG injection (n=262,126)2.39 nmol/LFull Range 1.78
150 IU recFSHSerum Progesterone (P) Levels (Restricted to Participants With hCG Injection)Day of ET (n=242,121)333.90 nmol/LFull Range 157.38
Secondary

Total Dose of recFSH Administered

Total dose of recFSH (IU) administered was defined as the total amount of recFSH needed by participants to reach the criterion for administration of hCG (at least 3 follicles \>=17mm).

Time frame: One COS cycle (up to a maximum total duration of 19 stimulation days)

Population: Participants from the ITT Group (consisting of all randomized participants who received corifollitropin alfa or recFSH) who received hCG.

ArmMeasureValue (MEDIAN)
100 μg Corifollitropin AlfaTotal Dose of recFSH Administered300.0 International Unit (IU)
150 IU recFSHTotal Dose of recFSH Administered1350.0 International Unit (IU)
Secondary

Total Dose of recFSH Administered From Day 8 Onwards

Total dose of recFSH (IU) needed from Stimulation Day 8 onwards to reach the criterion for administration of hCG (at least 3 follicles \>=17mm).

Time frame: Stimulation Day 8 of COS cycle up to day of hCG administration (up to a maximum total duration of 19 stimulation days)

Population: Participants from the ITT Group (consisting of all randomized participants who received corifollitropin alfa or recFSH) who received hCG.

ArmMeasureValue (MEDIAN)
100 μg Corifollitropin AlfaTotal Dose of recFSH Administered From Day 8 Onwards300.0 International Unit (IU)
150 IU recFSHTotal Dose of recFSH Administered From Day 8 Onwards275.0 International Unit (IU)
Secondary

Total Duration of Stimulation (Days)

Total duration of stimulation was defined as the number of days from first drug administration up to and including the Day of hCG administration.

Time frame: One COS cycle (up to a maximum total duration of 19 stimulation days)

Population: Participants from the ITT Group (consisting of all randomized participants who received corifollitropin alfa or recFSH) who received hCG.

ArmMeasureValue (MEDIAN)
100 μg Corifollitropin AlfaTotal Duration of Stimulation (Days)9.0 Days
150 IU recFSHTotal Duration of Stimulation (Days)9.0 Days

Source: ClinicalTrials.gov · Data processed: Mar 2, 2026