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Single-step Versus Sequential Media in Preimplantation Embryo Development and Pregnancy Rates

Comparison of Single-step (Global) Versus Sequential Media (Origio) in Preimplantation Embryo Development and Pregnancy Rates

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02048527
Enrollment
131
Registered
2014-01-29
Start date
2014-01-31
Completion date
2014-10-31
Last updated
2014-12-16

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

Conditions

Infertility

Brief summary

Sequential culture media were introduced in order to meet the changing requirements of the developing embryo in vitro. However, there has been renewed interest in the use of single-step media, which allow the embryo itself to choose the necessary nutrients while maintaining a more stable culture environment. Previous studies suggest that sequential media do not appear superior to single-step media.

Detailed description

Sequential culture media were introduced in order to meet the changing requirements of the developing embryo in vitro. However, there has been renewed interest in the use of single-step media, which allow the embryo itself to choose the necessary nutrients while maintaining a more stable culture environment. Previous studies suggest that sequential media do not appear superior to single-step media. The current study will include 2 RCTs: RCT 1: Random allocation of sibling oocytes to compare embryo development and blastocyst formation rates in the two culture media compared. RCT2: Random allocation of patients in either Global or Origio media, to evaluate pregnancy rates.

Interventions

OTHERGlobal

Single medium for the culture of embryos from Day1 to Day 5

OTHEROrigio

Sequential media medium for the culture of embryos from Day1 to Day 3 (ISM1) and from Day 3 to Day 5 (BlastAssist)

Sponsors

Eugonia
Lead SponsorOTHER

Study design

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

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 40 Years
Healthy volunteers
Yes

Inclusion criteria

* \<40 years of age * female infertility patients * at least 10 retrieved oocytes

Exclusion criteria

* 41 years or older * frozen-thawed oocytes/embryos * oocyte donation cycles

Design outcomes

Primary

MeasureTime frameDescription
Implantation rate per embryo transferred7 weeksNumber of fetal sacs with positive heart beat at 7 weeks of gestation

Secondary

MeasureTime frameDescription
Good quality blastocystsDay 5Good quality blastocysts are considered at least full blastocysts (stage 3 and above) with grade A or grade B inner-cell mass and trophectoderm respectively.
Positive hCG rates14 daysPregnancy test as assessed by detection of hCG using blood test
Blastocyst formation rateDay 5Embryos reaching the blastocyst stage on Day 5 post oocyte retrieval
Early pregnancy loss12 weeksMiscarriage per positive hCG test up to 12 weeks of gestation
Clinical pregnancy7 weeksPregnancy reaching 7 weeks of gestation
Ongoing pregnancy rates12 weeksPregnancy reaching 12 weeks of gestation

Countries

Greece

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026