The effects of ET catheter depth on the pregnency outcome of in vitro fertilization and embryo transfer: a prospective randomized trial

The effects of ET catheter depth on the pregnency outcome of in vitro fertilization and embryo transfer

Status

Recruiting

Phases

Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR1800018075

Enrollment

Unknown

Registered

2018-08-29

Start date

2014-01-26

Completion date

Unknown

Last updated

2018-09-03

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

Conditions

Infertility

Interventions

1:The ET catheter depth in the uterin cavity is 10mm

2:The ET catheter depth in the uterin cavity is 20mm

Eligibility

Sex/Gender

Female

Age

18 Years to 40 Years

Inclusion criteria

Inclusion criteria: 1. patient who have IVF-ET indications; 2. The endometrial length should between 20-39mm; 3. Patient who have at least one high quality embryo.

Exclusion criteria

Exclusion criteria: 1. patient have no high quality embryo; 2. Repeated implantation failure; 3. Difficult to transfer; 4. The endometrial thickness is less than 7mm; 5. Patient who have taken part in other intervention study; 6. Patient who have hydrosalpinx or endometrial Cavity Fluid.

Design outcomes

Primary

Measure	Time frame
The clinical pregnancy rate;	—

Secondary

Measure	Time frame
Implantation rate;Biochemical pregnancy rate;	—

Countries

China

Contacts

Public ContactQingxue Zhang

Department of Gynecology & Obstetrics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University

zhangqingxue666@aliyun.com+86 13602797433

Outcome results

None listed

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