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Trial · NCT04773353

Registered outcomes55

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryOngoing pregnancy rate10-11 weeks after embryo transferOngoing pregnancy is defined as at least one intrauterine viable fetus 10-11 weeks after embryo transfer.
SecondaryPositive beta human chorionic gonadotropin (βhCG) rate13-15 days after embryo transferPositive βhCG is defined as positive serum βhCG test 13-15 days after embryo transfer.
SecondaryClinical pregnancy rate5-6 weeks after embryo transferClinical pregnancy is defined as at least one gestational sac 5-6 weeks after embryo transfer.
SecondaryVital pregnancy rate5-6 weeks after embryo transferVital pregnancy is defined as at least one intrauterine gestational sac with fetal heart beat 5-6 weeks after embryo transfer.
SecondaryImplantation rate5-6 weeks after embryo transferImplantation rate is defined as the number of gestational sacs 5-6 weeks after transfer divided by number of embryos transferred.
SecondaryOngoing implantation rate10-11 weeks after embryo transferOngoing implantation rate is defined as the number of intrauterine viable fetuses 10-11 weeks after transfer divided by number of embryos transferred.
SecondaryProportion of subjects with extreme ovarian responsesOn day of oocyte retrieval (up to 22 days after start of stimulation)Extreme ovarian response is defined as \<4, ≥15 or ≥20 oocytes retrieved.
SecondaryProportion of subjects with early ovarian hyperstimulation syndrome (OHSS) (including OHSS of moderate/severe grade) and/or preventive interventions for early OHSS≤9 days after triggering of final follicular maturationThe proportion of participants with early OHSS, early OHSS of moderate or severe grade, preventive interventions for early OHSS will be presented.
SecondaryProportion of subjects with cycle cancellation due to poor or excessive ovarian response or embryo transfer cancellation due to excessive ovarian response / OHSS riskAt end-of-stimulation (up to 20 stimulation days) or transfer visitThe proportion of participants with cycle cancellation due to poor or excessive ovarian response or embryo transfer cancellation due to excessive ovarian response / OHSS risk will be presented.
SecondaryNumber of follicles on stimulation Day 6On stimulation Day 6Counted by ultrasound for the right and left ovary.
SecondaryNumber of follicles at end-of-stimulationAt end-of-stimulation (up to 20 stimulation days)Counted by ultrasound for the right and left ovary.
SecondarySize of follicles on stimulation Day 6On stimulation Day 6Measured by ultrasound for the right and left ovary.
SecondarySize of follicles at end-of-stimulationAt end-of-stimulation (up to 20 stimulation days)Measured by ultrasound for the right and left ovary.
SecondaryNumber of oocytes retrievedOn day of oocyte retrieval (up to 22 days after start of stimulation)The number of oocytes retrieved will be recorded at the oocyte retrieval visit.
SecondaryProportion of subjects with <4, 4-7, 8-14, 15-19 and ≥20 oocytes retrievedOn day of oocyte retrieval (up to 22 days after start of stimulation)
SecondaryPercentage of metaphase II oocytes (only applicable for those inseminated using intracytoplasmic sperm injection [ICSI])On day of oocyte retrieval (up to 22 days after stimulation)The percentage of metaphase II oocytes to oocytes retrieved for participants where all oocytes were inseminated using ICSI will be presented.
SecondaryFertilisation rateOn Day 1 after oocyte retrieval (up to 23 days after start of stimulation)The fertilisation rate is defined as the number of fertilized oocytes with 2 pronuclei divided by the number of oocytes retrieved.
SecondaryNumber and quality of embryos on day 3 after oocyte retrievalOn Day 3 after oocyte retrieval (up to 25 days after start of stimulation)
The total number of embryos and the number of good-quality embryos will be counted on Day 3. A good-quality embryo is defined as an embryo with ≥6 blastomeres and ≤20% fragmentation, without signs of multinucleation.
SecondaryCirculating concentrations of follicle-stimulating hormone (FSH) and luteinizing hormone (LH)On stimulation day 6Blood samples for analysis of circulating concentrations of FSH and LH will be drawn.
SecondaryCirculating concentrations of estradiolOn stimulation day 6Blood samples for analysis of circulating concentrations of estradiol will be drawn.

Source ClinicalTrials.govtrials-2026-11-12-0.5.0

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

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