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Comparison of the clinical outcomes between cleavage stage freezing and blastocyst stage freezing in single blastocyst transfer

Clinical efficacy evaluation of single blastocyst transfers with blastocysts cultured from thawed cleavage embryos

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2400079528
Enrollment
Unknown
Registered
2024-01-05
Start date
2024-02-01
Completion date
Unknown
Last updated
2024-01-08

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

Conditions

Infertility

Interventions

study group:Freeze in cleavage stage, culture to blastocyst stage and single blastocyst transfer
control group:Freeze in blastocyst stage and single blastocyst transfer

Sponsors

Shanghai First Maternity and Infant Hospital
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
20 Years to 40 Years

Inclusion criteria

Inclusion criteria: 1. Age below 40 years old 2. Patients who come to our hospital for IVF/ICSI treatment due to infertility and choose the "Whole Embryo Freezing" strategy.

Exclusion criteria

Exclusion criteria: 1. Documented IVF failure cycles more than two times; 2. Documented cycles with no oocyte retrieved; 3. Endometriosis grade 3 or higher; 4. Clinically significant systemic disease such as renal failure; 5. Cycles with preimplantation genetic screening.

Design outcomes

Primary

MeasureTime frame
clinical pregnancy rate;—

Secondary

MeasureTime frame
Embryo implantation rate;Multiple pregnancy rate;cancellation rate;miscarriage rate;—

Countries

China

Contacts

Public ContactFu Yonglun

Shanghai First Maternity and Infant Hospital

fuyonglun@51mch.com+86 139 1754 7302

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026