The goal of this clinical trial is to compare the live birth rate between intracytoplasmic sperm injection (ICSI) and artificial oocyte activation (AOA) vs intracytoplasmic sperm injection alone in patients with teratospermia. The hypothesis is the live birth rate following ICSI and AOA is significantly higher than that by ICSI alone in patients with teratospermia. This is a randomized controlled trial. Participants will be randomly assigned into one of the two groups: ICSI+AOA group: a single sperm will be injected within 4 hours after the follicular aspiration. All injected oocytes will be incubated in the calcium ionophore A23187 activation solution (C9275-1MG, Sigma, USA) for 10 min, and cultured in the cleavage medium (Cleavage Medium , Cook, United States) under standard conditions. ICSI alone group: a single sperm will be injected within 4 hours after the follicular aspiration.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
208
A single sperm will be injected within 4 hours after the follicular aspiration. All injected oocytes will be incubated in the calcium ionophore A23187 activation solution (C9275-1MG, Sigma, USA) for 10 min, and cultured in the cleavage medium (Cleavage Medium , Cook, United States) under standard conditions.
A single sperm will be injected within 4 hours after the follicular aspiration.
ShangHai JIAI Genetics &I VF Institute
Shanghai, China
RECRUITINGLive birth
Delivery ≥22 weeks of gestation with heartbeat and breath.
Time frame: 1 year after embryo transfer
Fertilization rate
Fertilized oocytes with two pronuclei per MII oocyte injected
Time frame: 1 day after oocyte retrieval
High-quality embryos on Day 3
Seven or eight blastomeres of equal-size and \<20% fragmentation by volume
Time frame: 3 days after oocyte retrieval
hCG positivity
Serum hCG level ≥10mIU/mL
Time frame: 14 days after embryo transfer
Number and grading of embryos/blastocysts
Number and grading of embryos/blastocysts suitable for freezing and transfer
Time frame: 6 days after oocyte retrieval
Clinical pregnancy
the presence of an intrauterine gestational sac on transvaginal ultrasound at 6 gestational weeks.
Time frame: 6 weeks of gestation
Ongoing pregnancy
a viable pregnancy beyond 12 weeks of gestation
Time frame: 12 weeks of gestation
Multiple pregnancy
presence of more than one intrauterine sac at 6 weeks of gestation
Time frame: 6 weeks of gestation
Cumulative live birth rate (within 6 months after randomization)
Any live birth arising from embryo transfer within 6 months after randomization
Time frame: 1.5 years after the randomization
Miscarriage rate
A clinically recognized pregnancy loss before 22 weeks of pregnancy. The denominator is the clinical pregnancy.
Time frame: 22 weeks of pregnancy
Birth weights of the newborns
Birth weights of the newborns
Time frame: 1 year after embryo transfer
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