InfertilityPhase 3EnsureNCT00702845
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 3 study testing corifollitropin alfa (Org 36286), recFSH (follitropin beta) and gonadatropin releasing hormone (GnRH) antagonist (ganirelix) in people with Infertility, run by Organon and Co.
Trial 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. Read more about this study
- Who is it for?
- Ages 18 to 36 years, women only
- Conditions the study is for
- Infertility
- What is being tested?
- corifollitropin alfa (Org 36286), recFSH (follitropin beta) and gonadatropin releasing hormone (GnRH) antagonist (ganirelix)
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 397 participants
- Where
- No sites listed yet
- Study dates
- 28 Dec 2006to 15 Nov 2007
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 36 years
- Women only
- No healthy volunteers
- Adult
Who may be able to join
- 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.
Who cannot join
- 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);
Show all 24Show fewer
- 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.
About this study
Official title: 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
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.
Read the 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.
- Conditions
- Infertility
- Being tested
- corifollitropin alfa (Org 36286), recFSH (follitropin beta), gonadatropin releasing hormone (GnRH) antagonist (ganirelix), human chorion gonadatropin (hCG), progesterone
- 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
- Medical subject headings
- Infertility
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
corifollitropin alfa (Org 36286)Drug
Also called Org 36286
100 µg corifollitropin alfa subcutaneous (SC) injection
recFSH (follitropin beta)Drug
Also called recFSH (Puregon/Follistim AQ Cartridge)
150 IU recFSH SC injection
gonadatropin releasing hormone (GnRH) antagonist (ganirelix)Drug
GnRH antagonist (ganirelix) administered SC at a dose of 0.25 mg/day
human chorion gonadatropin (hCG)Drug
hCG 5,000 IU or 10,000 IU administered SC
progesteroneBiological
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 (follitropin alfa)Drug
Placebo-recFSH administered at the equivalent volume of 150 IU/day.
placebo-corifollitropin alfaDrug
Single SC injection of placebo-corifollitropin alfa administered on Day 2 or 3 of the menstrual cycle.
open-label recFSHBiological
Open-label recFSH administered up to a maximum dose of 200 IU/day.
| Study group | Role | What they receive |
|---|---|---|
| corifollitropin alfa 100 µg | Experimental | Participants received a single subcutaneous (SC) injection of corifollitropin alfa 100 μg (Org 36286) on Day 2 or 3 of the menstrual cycle and daily placebo-recombinant Follicle Stimulating Hormone (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 Human Chorion Gonadotropin (hCG) administration. Participants also received Gonadotropin Releasing Hormone (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 by intramuscular [IM] injection), starting on day of oocyte pick-up (OPU) and continuing for at least 6 weeks or up to menses. Receives: Drug: corifollitropin alfa (Org 36286); Drug: gonadatropin releasing hormone (GnRH) antagonist (ganirelix); Drug: human chorion gonadatropin (hCG); Biological: progesterone; Drug: placebo-recFSH (follitropin alfa); Biological: open-label recFSH |
| recFSH 150 IU | Active comparator | Participants in the reference group 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. Receives: Drug: recFSH (follitropin beta); Drug: gonadatropin releasing hormone (GnRH) antagonist (ganirelix); Drug: human chorion gonadatropin (hCG); Biological: progesterone; Drug: placebo-corifollitropin alfa; Biological: open-label recFSH |
What is being measured
The primary outcome is the main question the study is designed to answer.
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.
Measured: One COS cycle with cumulus-oocyte-complex retrieval (up to a maximum total duration of 21 days)
Secondary outcomes (16)
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).
Measured: One COS cycle (up to a maximum total duration of 19 stimulation days)
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).
Measured: Stimulation Day 8 of COS cycle up to day of hCG administration (up to a maximum total duration of 19 stimulation days)
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).
Measured: One COS cycle (up to a maximum total duration of 19 stimulation days)
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.
Measured: One COS cycle (up to a maximum total duration of 19 stimulation days)
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.
Measured: Predose up to 2 weeks after ET (up to maximum of 6 weeks)
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.
Measured: Predose up to 2 weeks after ET (up to maximum of 6 weeks)
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.
Measured: Predose up to 2 weeks after ET (up to maximum of 6 weeks)
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.
Measured: Predose up to 2 weeks after ET (up to maximum of 6 weeks)
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.
Measured: Predose up to 2 weeks after ET (up to maximum of 6 weeks)
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.
Measured: Predose up to day of hCG administration (up to a maximum total duration of 19 stimulation days, including day of hCG administration)
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).
Measured: Up to 36 hours after administration of hCG
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.
Measured: Up to 10 weeks after ET
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.
Measured: Post fertilization Day 3 (up to a maximum of 2 days after hCG administration)
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%.
Measured: Up to 6 weeks after ET within a treatment cycle (up to a maximum 10 weeks)
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.
Measured: Up to 10 weeks after ET (up to a maximum of 14 weeks)
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.
Measured: Up to 10 weeks after ET (up to a maximum of 14 weeks)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Jun 2008 (estimated)
- Study start28 Dec 2006
- Primary completion7 Jul 2007
- Study completion15 Nov 2007
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for InfertilityStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 397 participants (actual)
Sponsor and investigators
- Lead sponsor
- Organon and Co
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Medical Director, Study director, Merck Sharp & Dohme LLC
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00702845
- Sponsor's protocol ID
- P05690
- Other IDs
- 2006-003811-36, 107012
- Acronym
- Ensure
- Status last verified
- Feb 2022
- First submitted
- 18 Jun 2008
- Last updated
- 18 Jun 2024
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- Individual data sharing
- No
Publications
Corifollitropin alfa Ensure Study Group. Corifollitropin alfa for ovarian stimulation in IVF: a randomized trial in lower-body-weight women. Reprod Biomed Online. 2010 Jul;21(1):66-76. doi: 10.1016/j.rbmo.2010.03.019. Epub 2010 Mar 28.
PubMed 20483664Zandvliet AS, Prohn M, de Greef R, van Aarle F, McCrary Sisk C, Stegmann BJ. Impact of patient characteristics on the pharmacokinetics of corifollitropin alfa during controlled ovarian stimulation. Br J Clin Pharmacol. 2016 Jul;82(1):74-82. doi: 10.1111/bcp.12939. Epub 2016 May 31.
PubMed 26991902Griesinger G, Verweij PJ, Gates D, Devroey P, Gordon K, Stegmann BJ, Tarlatzis BC. Prediction of Ovarian Hyperstimulation Syndrome in Patients Treated with Corifollitropin alfa or rFSH in a GnRH Antagonist Protocol. PLoS One. 2016 Mar 7;11(3):e0149615. doi: 10.1371/journal.pone.0149615. eCollection 2016.
PubMed 26950065
Study at a glance
From the registry record, last updated by the sponsor on 18 Jun 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- 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
- ClinicalTrials.gov ID
- NCT00702845
- Acronym / sponsor ID
- Ensure / P05690
- Conditions
- Infertility
- Keywords
- In vitro fertilization, Pharmacological effects of drugs, Hormones, Hormone Substitutes and Hormone Antagonists, Pharmacological Actions, Randomized, Multi-center, Multi-national
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 397 participants (actual)
- Lead sponsor
- Organon and CoIndustry (pharma, biotech, devices)
- Study start
- 28 Dec 2006 (actual)
- Primary completion
- 7 Jul 2007 (actual)
- Study completion
- 15 Nov 2007 (actual)
- First posted
- 20 Jun 2008 (estimated)
- Results
- Posted 27 Apr 2015
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| corifollitropin alfa 100 µg | Experimental | Drug: corifollitropin alfa (Org 36286), Drug: gonadatropin releasing hormone (GnRH) antagonist (ganirelix), Drug: human chorion gonadatropin (hCG), Biological: progesterone, Drug: placebo-recFSH (follitropin alfa), Biological: open-label recFSHParticipants received a single subcutaneous (SC) injection of corifollitropin alfa 100 μg (Org 36286) on Day 2 or 3 of the menstrual cycle and daily placebo-recombinant Follicle Stimulating Hormone (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 Human Chorion Gonadotropin (hCG) administration. Participants also received Gonadotropin Releasing Hormone (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 by intramuscular [IM] injection), starting on day of oocyte pick-up (OPU) and continuing for at least 6 weeks or up to menses. |
| recFSH 150 IU | Active comparator | Drug: recFSH (follitropin beta), Drug: gonadatropin releasing hormone (GnRH) antagonist (ganirelix), Drug: human chorion gonadatropin (hCG), Biological: progesterone, Drug: placebo-corifollitropin alfa, Biological: open-label recFSHParticipants in the reference group 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. |
Who may qualify
- Ages
- 18 to 36 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (6 listed)
- 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);
Key exclusion criteria (24 listed)
- 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);
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| corifollitropin alfa (Org 36286)Also: Org 36286100 µg corifollitropin alfa subcutaneous (SC) injection | Drug | corifollitropin alfa 100 µg |
| recFSH (follitropin beta)Also: recFSH (Puregon/Follistim AQ Cartridge)150 IU recFSH SC injection | Drug | recFSH 150 IU |
| gonadatropin releasing hormone (GnRH) antagonist (ganirelix)GnRH antagonist (ganirelix) administered SC at a dose of 0.25 mg/day | Drug | corifollitropin alfa 100 µg, recFSH 150 IU |
| human chorion gonadatropin (hCG)hCG 5,000 IU or 10,000 IU administered SC | Drug | corifollitropin alfa 100 µg, recFSH 150 IU |
| progesteroneProgesterone 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. | Biological | corifollitropin alfa 100 µg, recFSH 150 IU |
| placebo-recFSH (follitropin alfa)Placebo-recFSH administered at the equivalent volume of 150 IU/day. | Drug | corifollitropin alfa 100 µg |
| placebo-corifollitropin alfaSingle SC injection of placebo-corifollitropin alfa administered on Day 2 or 3 of the menstrual cycle. | Drug | recFSH 150 IU |
| open-label recFSHOpen-label recFSH administered up to a maximum dose of 200 IU/day. | Biological | corifollitropin alfa 100 µg, recFSH 150 IU |
Primary outcome
Number of Cumulus-oocyte-complexes Retrieved, Per Attempt
Time frame: One 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.
16 secondary outcomes
Total Dose of recFSH Administered
Time frame: One COS cycle (up to a maximum total duration of 19 stimulation days)
Total Dose of recFSH Administered From Day 8 Onwards
Time frame: Stimulation Day 8 of COS cycle up to day of hCG administration (up to a maximum total duration of 19 stimulation days)
Number of Days Treated With recFSH
Time frame: One COS cycle (up to a maximum total duration of 19 stimulation days)
Total Duration of Stimulation (Days)
Time frame: One COS cycle (up to a maximum total duration of 19 stimulation days)
Serum Follicle Stimulating Hormone (FSH) Levels (Restricted to Participants With hCG Injection)
Time frame: Predose up to 2 weeks after ET (up to maximum of 6 weeks)
Serum Lutenizing Hormone (LH) Levels (Restricted to Participants With hCG Injection)
Time frame: Predose up to 2 weeks after ET (up to maximum of 6 weeks)
Serum Estradiol (E2) Levels (Restricted to Participants With hCG Injection)
Time frame: Predose up to 2 weeks after ET (up to maximum of 6 weeks)
Serum Progesterone (P) Levels (Restricted to Participants With hCG Injection)
Time frame: Predose up to 2 weeks after ET (up to maximum of 6 weeks)
Serum Inhibin-B Levels (Restricted to Participants With hCG Injection)
Time frame: Predose up to 2 weeks after ET (up to maximum of 6 weeks)
Number and Size Distribution of Follicles During Stimulation and on the Day of hCG Administration
Time frame: Predose up to day of hCG administration (up to a maximum total duration of 19 stimulation days, including day of hCG administration)
Number and Quality of Oocytes Assessed Prior to ICSI (Restricted to Participants With ICSI Only)
Time frame: Up to 36 hours after administration of hCG
Fertilization Rate
Time frame: Up to 10 weeks after ET
Number and Quality of Embryos Obtained at Day 3 (Restricted to Participants With IVF and/or ICSI)
Time frame: Post fertilization Day 3 (up to a maximum of 2 days after hCG administration)
Implantation Rate for Participants With ET
Time frame: Up to 6 weeks after ET within a treatment cycle (up to a maximum 10 weeks)
Number of Participants With Miscarriages
Time frame: Up to 10 weeks after ET (up to a maximum of 14 weeks)
Number of Participants With Pregnancies
Time frame: Up to 10 weeks after ET (up to a maximum of 14 weeks)
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Jun 2024.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Results publication: PubMed 20483664Corifollitropin alfa Ensure Study Group. Corifollitropin alfa for ovarian stimulation in IVF: a randomized trial in lower-body-weight women. Reprod Biomed Online. 2010 Jul;21(1):66-76. doi: 10.1016/j.rbmo.2010.03.019. Epub 2010 Mar 28.
- Derived from this study: PubMed 26991902Zandvliet AS, Prohn M, de Greef R, van Aarle F, McCrary Sisk C, Stegmann BJ. Impact of patient characteristics on the pharmacokinetics of corifollitropin alfa during controlled ovarian stimulation. Br J Clin Pharmacol. 2016 Jul;82(1):74-82. doi: 10.1111/bcp.12939. Epub 2016 May 31.
- Derived from this study: PubMed 26950065Griesinger G, Verweij PJ, Gates D, Devroey P, Gordon K, Stegmann BJ, Tarlatzis BC. Prediction of Ovarian Hyperstimulation Syndrome in Patients Treated with Corifollitropin alfa or rFSH in a GnRH Antagonist Protocol. PLoS One. 2016 Mar 7;11(3):e0149615. doi: 10.1371/journal.pone.0149615. eCollection 2016.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Medical Director study director
Merck Sharp & Dohme LLC
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing corifollitropin alfa (Org 36286), recFSH (follitropin beta) and gonadatropin releasing hormone (GnRH) antagonist (ganirelix) in people with Infertility, run by Organon and Co.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 24 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 18 Jun 2024. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 27 Apr 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Number of Cumulus-oocyte-complexes Retrieved, Per Attempt (time frame: One COS cycle with cumulus-oocyte-complex retrieval (up to a maximum total duration of 21 days)). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00702845, which also lists 3 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Jun 2024.