Impact and cost-effective analysis elective single blastocyst-stage embryo transfer in women with advanced age

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2100044156

Enrollment

Unknown

Registered

2021-03-11

Start date

2021-05-01

Completion date

Unknown

Last updated

2021-08-30

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

Conditions

Infertility

Interventions

1:single blastocyst transfer

2:Double blastocyst transfer

Eligibility

Sex/Gender

Female

Age

35 Years to 50 Years

Inclusion criteria

Inclusion criteria: Infertility; aged >= 35 years; D3 >= 2 high-quality cleavage stage embryos; blastocyst culture, D5 >=2 blastocysts available undergoing fresh cycle.

Exclusion criteria

Exclusion criteria: One available blastocyst day D5, chromosomal abnormalities on either side or preimplantation genetic testing (PGT), scarred uterus or uterine deformity, female height <= 150cm, and there are medical indications that are not suitable for twin pregnancy.

Design outcomes

Primary

Measure	Time frame
livebirth rate;	—

Countries

China

Contacts

Public ContactCai He

Northwest Women's and Children's Hospital of Xi'an Jiaotong University

caihe@bjmu.edu.cn+86 13581613908

Outcome results

None listed

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