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Follow-up Study of Frozen-thawed Embryo Transfer (FTET) Cycles After Cryopreservation of Embryos in Clinical Trial P05787 (P05716)

Follow-up Protocol to Collect the Outcome of Frozen-thawed Embryo Transfer Cycles After Cryopreservation of Embryos in Clinical Trial 38819

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00702273
Enrollment
344
Registered
2008-06-20
Start date
2006-04-19
Completion date
2009-05-31
Last updated
2024-09-05

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

Conditions

In Vitro Fertilization

Keywords

In-vitro fertilization, Controlled Ovarian Stimulation, Cumulative pregnancy data, Follow-up

Brief summary

To collect the outcome of frozen-thawed embryo transfer cycles after the embryos are cryopreserved up to at least 1 year in Trial P05787 (NCT00696800), in order to estimate the cumulative pregnancy rate for each treatment group.

Detailed description

This is a follow-up protocol to collect the outcome of frozen-thawed embryo transfer cycles, performed after the embryos are cryopreserved up to at least 1 year in Trial P05787 (NCT00696800), to enable estimation of the cumulative pregnancy rate for each treatment group.

Interventions

DRUG150 µg Corifollitropin Alfa

On the morning of day 2 or 3 of the menstrual cycle (Stimulation Day 1), a single SC injection of 150 μg (0.5 mL) Corifollitropin Alfa was administered in the abdominal wall.

Daily SC injections with 200 IU fixed dose recFSH were started on Stimulation Day 1 and continued up to and including Stimulation Day 7.

Pre-filled syringe containing an identical solution when compared to Corifollitropin Alfa. On the morning of day 2 or 3 of the menstrual cycle (Stimulation Day 1), a single SC injection was administered in the abdominal wall.

Identical ready-for-use solution, but without the active ingredient, supplied in cartridges for SC injection with the Follistim Pen. Daily SC injections were started on Stimulation Day 1 and continued up to and including Stimulation Day 7.

From Stimulation Day 8 onwards a daily SC dose of 200 IU recFSH was administered up to and including the Day of hCG.

DRUGGanirelix

On Stimulation Day 5 a daily SC injection of 0.25 mg was started, which continued up to and including the day of hCG

BIOLOGICALhCG

When 3 follicles \>= 17 mm were observed by USS, a single dose of 10,000 IU/USP hCG was administered; or, for those at risk for Ovarian Hyperstimulation Syndrome (OHSS), a lower dose of 5,000 IU/USP

BIOLOGICALProgesterone

On the day of OPU, luteal phase support was started by administering micronized progesterone of at least 600 mg/day vaginally, or at least 50 mg/day intramuscular (IM), which continued for at least 6 weeks, or up to menses.

Sponsors

Organon and Co
Lead SponsorINDUSTRY

Study design

Observational model
OTHER
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

* Participants from whom embryos have been cryopreserved in Base Trial P05787 (NCT00696800), of which at least one embryo is thawed for use in a subsequent FTET cycle; * Able and willing to give informed consent.

Exclusion criteria

* None

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With an Ongoing Pregnancy (Cumulative Ongoing Pregnancy Rate)Up to 1 year after embryo transfer in base trial P05787 (NCT00696800), and FTET cycles in follow up trialAn ongoing pregnancy is the presence of at least one fetus with heart activity at least 10 weeks after embryo transfer or confirmed by live birth.The cumulative ongoing pregnancy rate is 100 times the number of participants with an ongoing pregnancy either immediately after embryo transfer in base Trial P05787 (NCT00696800), or after one or more FTET cycles in follow-up Trial P05716 following cryopreservation, divided by the total number of participants that started treatment in base Trial P05787 (NCT00696800). Participants who did not have cryopreserved embryos, or embryo transfers in the FTET cycle(s), were considered 'not pregnant'.

Secondary

MeasureTime frameDescription
Percentage of Participants in Follow up Trial With a Miscarriage Per Vital PregnancyAfter one or more FTET cycles, up to day of miscarriage (up to 1 year)Miscarriages were calculated per vital pregnancy, meaning the presence of at least one fetus with heart activity.
Percentage of Participants in Follow up Trial With an Ectopic PregnancyAfter one or more FTET cycles, assessed at least 10 weeks after embryo transfer (up to 1 year)An ectopic pregnancy is where the embryo implants outside the uterus. Ectopic pregnancies were calculated per total number of participants started in FTET.
Percentage of Participants in Follow up Trial With a Miscarriage Per Clinical PregnancyAfter one or more FTET cycles, up to day of miscarriage (up to 1 year)Miscarriages were calculated per clinical pregnancy, meaning the presence of at least one gestational sac or confirmed by live birth.
Percentage of Participants in Follow up Trial With a Vital PregnancyAfter one or more FTET cycles, assessed at least 10 weeks after embryo transfer (up to 1 year)A vital pregnancy is the presence of at least one fetus with heart activity. Vital pregnancies were calculated per attempt, meaning if any stage of IVF treatment was not achieved, zero values were imputed.
Percentage of Participants in Follow up Trial With an Ongoing PregnancyAfter one or more FTET, assessed at least 10 weeks after embryo transfer or at live birth (up to 1 year)An ongoing pregnancy is the presence of at least one fetus with heart activity at least 10 weeks after embryo transfer or confirmed at live birth. Ongoing pregnancies were calculated per attempt, meaning if any stage of IVF treatment was not achieved, zero values were imputed.
Percentage of Participants in Follow up Trial With a Clinical PregnancyAfter one or more FTET cycles, assessed at least 10 weeks after embryo transfer (up to 1 year)A clinical pregnancy is the presence of at least gestational sac or confirmed by live birth. Clinical pregnancies were calculated per attempt, meaning if any stage of in vitro fertilization (IVF) treatment was not achieved, zero values were imputed.

Participant flow

Pre-assignment details

Period one consists of participants from the base study P05787 (NCT00696800), randomized to treatment groups Corifollitropin Alfa (Cori Alfa) (Org 36286) or recombinant Follicle Stimulating Hormone (recFSH). Period two consists of eligible participants (N = 344) from the base study who enrolled in the follow up study P05716.

Participants by arm

ArmCount
150 µg Corifollitropin Alfa
Participants from the base study P05787 (NCT00696800), received a single subcutaneous (SC) injection of 150 µg Corifollitropin Alfa on menstrual cycle Day 2/3 (Day 1); 7 daily SC injections from Days 1 to 7 with placebo-recFSH); followed by daily SC injections with 200 IU recFSH up to the day of human chorionogonadotropin (hCG). Daily SC injections of Ganirelix were given from Day 5 to the day of hCG; at which time a single dose of hCG was given when 3 follicles \>= 17 mm. On the day of oocyte pick up (OPU) daily doses of progesterone were started, for up to 6 weeks or menses. Eligible participants from the base study were enrolled in follow up study P05716, where no study treatments were given, and embryos obtained in the base study underwent FTET cycles.
168
200 IU RecFSH
Participants from the base study P05787 (NCT00696800), received a single SC injection of placebo Corifollitropin Alfa on menstrual cycle day 2/3 (Day 1); 7 daily SC injections with 200 IU recFSH from Days 1 to 7; followed by daily SC injections with 200 IU recFSH up to the day of hCG. Multiple daily SC injections of Ganirelix were given from Day 5 to the day of hCG; at which time a single dose of hCG was given when 3 follicles \>= 17 mm. On the day of OPU daily doses of progesterone were started and continued for up to 6 weeks or menses. Eligible participants from the base study were enrolled in follow up study P05716, where no study treatments were given, and embryos obtained in the base study underwent FTET cycles.
176
Total344

Baseline characteristics

Characteristic150 µg Corifollitropin Alfa200 IU RecFSHTotal
Age, Continuous31.1 Years
STANDARD_DEVIATION 3.8
31.3 Years
STANDARD_DEVIATION 3
31.2 Years
STANDARD_DEVIATION 3.4
Sex: Female, Male
Female
168 Participants176 Participants344 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
0 / 1680 / 176
serious
Total, serious adverse events
1 / 1680 / 176

Outcome results

Primary

Percentage of Participants With an Ongoing Pregnancy (Cumulative Ongoing Pregnancy Rate)

An ongoing pregnancy is the presence of at least one fetus with heart activity at least 10 weeks after embryo transfer or confirmed by live birth.The cumulative ongoing pregnancy rate is 100 times the number of participants with an ongoing pregnancy either immediately after embryo transfer in base Trial P05787 (NCT00696800), or after one or more FTET cycles in follow-up Trial P05716 following cryopreservation, divided by the total number of participants that started treatment in base Trial P05787 (NCT00696800). Participants who did not have cryopreserved embryos, or embryo transfers in the FTET cycle(s), were considered 'not pregnant'.

Time frame: Up to 1 year after embryo transfer in base trial P05787 (NCT00696800), and FTET cycles in follow up trial

Population: ITT group from base trial P05787, consisting of randomized participants who were treated with Corifollitropin Alfa or recFSH.

ArmMeasureValue (NUMBER)
150 µg Corifollitropin AlfaPercentage of Participants With an Ongoing Pregnancy (Cumulative Ongoing Pregnancy Rate)47.2 Percentage of participants
200 IU RecFSHPercentage of Participants With an Ongoing Pregnancy (Cumulative Ongoing Pregnancy Rate)44.9 Percentage of participants
Comparison: Treatment groups were compared with a generalized linear model including covariates treatment group, age class and region.95% CI: [-2.6, 7.4]
Secondary

Percentage of Participants in Follow up Trial With a Clinical Pregnancy

A clinical pregnancy is the presence of at least gestational sac or confirmed by live birth. Clinical pregnancies were calculated per attempt, meaning if any stage of in vitro fertilization (IVF) treatment was not achieved, zero values were imputed.

Time frame: After one or more FTET cycles, assessed at least 10 weeks after embryo transfer (up to 1 year)

Population: Participants enrolled in P05716 Follow Up study, that had an embryo transfer in the respective cycle.

ArmMeasureValue (NUMBER)
150 µg Corifollitropin AlfaPercentage of Participants in Follow up Trial With a Clinical Pregnancy43.5 Percentage of participants
200 IU RecFSHPercentage of Participants in Follow up Trial With a Clinical Pregnancy38.6 Percentage of participants
Secondary

Percentage of Participants in Follow up Trial With a Miscarriage Per Clinical Pregnancy

Miscarriages were calculated per clinical pregnancy, meaning the presence of at least one gestational sac or confirmed by live birth.

Time frame: After one or more FTET cycles, up to day of miscarriage (up to 1 year)

Population: Participants enrolled in P05716 Follow Up study that had a clinical pregnancy.

ArmMeasureValue (NUMBER)
150 µg Corifollitropin AlfaPercentage of Participants in Follow up Trial With a Miscarriage Per Clinical Pregnancy8.2 Percentage of participants
200 IU RecFSHPercentage of Participants in Follow up Trial With a Miscarriage Per Clinical Pregnancy17.6 Percentage of participants
Secondary

Percentage of Participants in Follow up Trial With a Miscarriage Per Vital Pregnancy

Miscarriages were calculated per vital pregnancy, meaning the presence of at least one fetus with heart activity.

Time frame: After one or more FTET cycles, up to day of miscarriage (up to 1 year)

Population: Participants enrolled in P05716 Follow Up study that had a vital pregnancy.

ArmMeasureValue (NUMBER)
150 µg Corifollitropin AlfaPercentage of Participants in Follow up Trial With a Miscarriage Per Vital Pregnancy0 Percentage of participants
200 IU RecFSHPercentage of Participants in Follow up Trial With a Miscarriage Per Vital Pregnancy0 Percentage of participants
Secondary

Percentage of Participants in Follow up Trial With an Ectopic Pregnancy

An ectopic pregnancy is where the embryo implants outside the uterus. Ectopic pregnancies were calculated per total number of participants started in FTET.

Time frame: After one or more FTET cycles, assessed at least 10 weeks after embryo transfer (up to 1 year)

Population: Participants enrolled in P05716 Follow Up study.

ArmMeasureValue (NUMBER)
150 µg Corifollitropin AlfaPercentage of Participants in Follow up Trial With an Ectopic Pregnancy1.2 Percentage of participants
200 IU RecFSHPercentage of Participants in Follow up Trial With an Ectopic Pregnancy0.6 Percentage of participants
Secondary

Percentage of Participants in Follow up Trial With an Ongoing Pregnancy

An ongoing pregnancy is the presence of at least one fetus with heart activity at least 10 weeks after embryo transfer or confirmed at live birth. Ongoing pregnancies were calculated per attempt, meaning if any stage of IVF treatment was not achieved, zero values were imputed.

Time frame: After one or more FTET, assessed at least 10 weeks after embryo transfer or at live birth (up to 1 year)

Population: Participants enrolled in P05716 Follow Up study, that had an embryo transfer in the respective cycle.

ArmMeasureValue (NUMBER)
150 µg Corifollitropin AlfaPercentage of Participants in Follow up Trial With an Ongoing Pregnancy38.7 Percentage of participants
200 IU RecFSHPercentage of Participants in Follow up Trial With an Ongoing Pregnancy30.7 Percentage of participants
Secondary

Percentage of Participants in Follow up Trial With a Vital Pregnancy

A vital pregnancy is the presence of at least one fetus with heart activity. Vital pregnancies were calculated per attempt, meaning if any stage of IVF treatment was not achieved, zero values were imputed.

Time frame: After one or more FTET cycles, assessed at least 10 weeks after embryo transfer (up to 1 year)

Population: Participants enrolled in P05716 Follow Up study, that had an embryo transfer in the respective cycle.

ArmMeasureValue (NUMBER)
150 µg Corifollitropin AlfaPercentage of Participants in Follow up Trial With a Vital Pregnancy39.9 Percentage of participants
200 IU RecFSHPercentage of Participants in Follow up Trial With a Vital Pregnancy31.8 Percentage of participants

Source: ClinicalTrials.gov · Data processed: Mar 26, 2026