Comparison between headfirst and tailfirst direction of sperm for intracytoplasmic sperm injection

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

TCTR

Registry ID

TCTR20190826004

Enrollment

Registered

2019-08-26

Start date

2019-10-15

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

fertilization rate cleavage rate blastocyst rate implantation rate clinical pregnancy rate ICSI&#44

Interventions

ICSI was done by injection of sperm headfirst into ooplasm,ICSI was done by injection of sperm tailfirst into ooplasm

Active Comparator Procedure/Surgery,Active Comparator Procedure/Surgery

headfirst direction(Group I), tailfirst direction (Group II)

Eligibility

Sex/Gender

Female

Age

20 Years to 35 Years

Inclusion criteria

Inclusion criteria: Patients aged 20 - 35 years old undergoing IVF treatment with male factor infertility according to WHO criteria, of which need ICSI for assisted fertilization.

Exclusion criteria

Exclusion criteria: poor responder Ovarian hyperstimulation syndrome

Design outcomes

Primary

Measure	Time frame
fertilization, embryonic development 18 h after insemination 96-120h, 144h Embryo morphologic classification	—

Secondary

Measure	Time frame
implantation rate,clinical pregnancy rate Day 14 and 35 after tranfer implantation rate was defined as the number of gestational sacs divided by the number of embryos .	—

Countries

Thailand

Contacts

Public ContactPallop Pongsuthirak

Buddhachinnaraj Hospital

palloppong@yahoo.co.th0814750081

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026