Skip to content

Effect of storage time after vitrification freezing of cleavage stage embryos on clinical outcomes of resuscitated cycle embryo transfer: a retrospective cohort study using propensity score matching

Effect of storage time after vitrification freezing of cleavage stage embryos on clinical outcomes of resuscitated cycle embryo transfer: a retrospective cohort study using propensity score matching

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2400094796
Enrollment
Unknown
Registered
2024-12-27
Start date
2025-01-10
Completion date
Unknown
Last updated
2025-01-06

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

Conditions

Infertility

Interventions

Embryos are frozen and stored for 0-3 months:None
Embryos are frozen and stored for 3-6 months:None
Embryos are frozen and stored for 6-12 months:None
Embryos are frozen and stored for >1 year:None

Sponsors

Affiliated Hospital of Shandong University of Traditional Chinese Medicine
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
No minimum to 44 Years

Inclusion criteria

Inclusion criteria: (1)Meets the diagnostic criteria of the disease. (2) Age <45 years old. (3)Transfer of embryos at the cleavage stage of the FET cycle. (4)There are transferable embryos after thawing. (5)Compliance with the Code of Assisted Human Reproduction Technology.

Exclusion criteria

Exclusion criteria: (1)Uterine abnormalities. (2)Chromosomal abnormalities. (3) Blastocyst transfer patients. (4)Patients with uncontrolled endocrine diseases, such as diabetes, hypertension, thyroid disease. (5)Patients with incomplete information collection.

Design outcomes

Primary

MeasureTime frame
Live birth rate;

Secondary

MeasureTime frame
Clinical pregnancy rate;Biochemical pregnancy rate;Ectopic pregnancy rate;Pregnancy loss rate;Multiple pregnancy rate;Newborn gender;Birth length;Birth weight;Cesarean section rate;

Countries

China

Contacts

Public ContactHaicui Wu

Affiliated Hospital of Shandong University of Traditional Chinese Medicine

haicui_w@163.com+86 150 6912 9571

Outcome results

None listed

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