Clinical Trials Logo
  1. Home
  2. Pregnancy
  3. NCT01287273

The Impact of Early Embryos Incubation on Pregnancy Rate in IVF — IVF-2010  

Pregnancy Clinical Trial

Official title:
The Impact of Early Embryos Incubation on Pregnancy Rate in IVF

Clinical Trial Summary

Frozen- thawed embryos obtained by IVF treatments are transferred to the uterus immediately following thawing or after incubation for additional 24-72 hours. The two methods are routine in IVF laboratories. In this study the investigators would like to compare between these two methods in terms of implantation rate, pregnancy rate and delivery.

Clinical Trial Description

It has been common practice to cryopreserve surplus embryos achieved during IVF treatment or in other situation that embryos are to be preserved for other situations such as suspected ovarian hyper stimulation syndrome, fertility preservation or patient request.

Embryos are usually frozen on day 2, 3 or day 5-6 at the Blastocyst stage. At the time that thawing is planned, patients' cycle is synchronized and prepared either with hormonal treatment or at the natural cycle.

Not all embryos will always survive the thawing and sometimes they will all degenerate.

Embryos that survive the thawing procedure are assessed and replaced on the day of the thaw or left overnight for better selection and will be replaced only if they continue to divide in vitro.

The advantage of embryo transfer on the day of thaw is that embryo exposure in culture is shortened and embryo selection will be occurring in the womb. On the other hand, overnight incubation may avoid transferring embryos that potentially are not able to divide and are biologically not viable.

Although both attitudes are practiced in different IVF centers, at present there are no prospective randomized studies that have been conducted to advise which intervention is better in terms of pregnancy rates.

The purpose of the present study is to assess which technique will result in better pregnancy rates. ;

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01287273
Study type Observational
Source Carmel Medical Center
Contact Martha Dirnfeld, MD
Phone 8250335
Email dirnfeld_martha@clalit.org.il
Status Recruiting
Phase N/A
Start date April 2011
View Details
See also
  Status Clinical Trial Phase
Completed NCT03442582 - Afluria Pregnancy Registry
Terminated NCT02161861 - Improvement of IVF Fertilization Rates, by the Cyclic Tripeptide FEE - Prospective Randomized Study N/A
Not yet recruiting NCT05934318 - L-ArGinine to pRevent advErse prEgnancy Outcomes (AGREE) N/A
Enrolling by invitation NCT05415371 - Persistent Poverty Counties Pregnant Women With Medicaid N/A
Completed NCT04548102 - Effects of Fetal Movement Counting on Maternal and Fetal Outcome Among High Risk Pregnant Woman N/A
Completed NCT03218956 - Protein Requirement During Lactation N/A
Completed NCT02191605 - Computer-delivered Screening & Brief Intervention for Marijuana Use in Pregnancy N/A
Completed NCT02223637 - Meningococcal Quadrivalent CRM-197 Conjugate Vaccine Pregnancy Registry
Recruiting NCT06049953 - Maternal And Infant Antipsychotic Study
Completed NCT02577536 - PregSource: Crowdsourcing to Understand Pregnancy
Not yet recruiting NCT06336434 - CREATE - Cabotegravir & Rilpivirine Antiretroviral Therapy in Pregnancy Phase 1/Phase 2
Not yet recruiting NCT05412238 - Formulation and Evaluation of the Efficacy of Macro- and Micronutrient Sachets on Pregnant Mothers and Children Aged 6-60 Months N/A
Not yet recruiting NCT04786587 - Alcohol Self-reporting During Pregnancy. AUTOQUEST Study.
Not yet recruiting NCT05028387 - Telemedicine Medical Abortion Service Using the "No-test" Protocol in Ukraine and Uzbekistan.
Completed NCT02683005 - Study of Hepatitis C Treatment During Pregnancy Phase 1
Completed NCT02783170 - Safety and Immunogenicity of Simultaneous Tdap and IIV in Pregnant Women Phase 4
Recruiting NCT02507180 - Safely Ruling Out Deep Vein Thrombosis in Pregnancy With the LEFt Clinical Decision Rule and D-Dimer
Recruiting NCT02564250 - Maternal Metabolism and Pregnancy Outcomes in Obese Pregnant Women N/A
Recruiting NCT02619188 - Nutritional Markers in Normal and Hyperemesis Pregnancies N/A
Completed NCT02408315 - Induction With Misoprostol: Oral Mucosa Versus Vaginal Epithelium (IMPROVE) Phase 3