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Piezo-ICSI to Improve the Developmental Potential of Fertilized Oocytes in Aged Infertility Women With Assisted Reproductive Technology

A Single-center Randomized Controlled Trial on Piezo-ICSI Improving Oocyte Fertilization and Embryo Development in Elderly Infertile Patients

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06459778
Enrollment
147
Registered
2024-06-14
Start date
2023-11-20
Completion date
2026-05-31
Last updated
2024-06-14

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

Conditions

Infertility, Female, Intracytoplasmic Sperm Injections

Brief summary

The goal of this clinical trial is to test Piezo-ICSI on improving oocyte fertilization and embryo development in elderly infertile patients undergoing intracytoplasmic sperm injection (ICSI). The main question it aims to answer is whether Piezo-ICSI could improve oocyte fertilization and embryo development. Participants requested ICSI are asked to randomly culture equal numbers of oocyte and embryo with or without Piezo-ICSI. At the time of injection, two or more mature oocytes were split into two groups (i) conventional ICSI and (ii) Piezo-ICSI (50:50 split).

Detailed description

After being informed about the study and potential risks, all participants will write the informed contents. This study is a randomized controlled study compare different ICSI methods on the fertilization and embryo development. Sibling oocytes were randomly divided into test group (Piezo-ICSI) and control group (conventional ICSI). Specific method of randomization: all the oocytes of each subject were distributed into two dishes (dish 1 and dish 2). If the oocyte number is odd, put the extra oocyte into dish 1. Using statistical software, the two dishes were randomly treated as test group and control group. Thus, a random allocation table was generated and a separate random envelope was made for each subject. The random envelope is kept and distributed by the relevant personnel who are not involved in the screening and treatment of subjects and are authorized by the researcher. Each selected subject must open the random envelope. The subjects were subjected to routine ovulation promotion, and then the acquired oocytes and cumulus cell complexes (COCs) were obtained and fertilized in vitro. The test group oocytes were fertilized with Piezo-ICSI, while the control oocytes were fertilized with conventional ICSI. Thus, half of the oocytes from each elderly infertile patient were treated with Piezo-ICSI.

Interventions

Participants had their oocytes cohort divided, where half were injected using conventional ICSI and the other half were injected using Piezo-ICSI.

Sponsors

The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
35 Years to 42 Years
Healthy volunteers
No

Inclusion criteria

1. 35 years ≤ age ≤ 42 years; 2. Number of IVF/ICSI cycles ≤ 2

Exclusion criteria

1. Egg donor cycle 2. Chromosome abnormality; 3. Adenomyosis, hysteromyoma, thin endometrium, endometriosis and other uterine diseases; 4. Patients with repeated implantation failure

Design outcomes

Primary

MeasureTime frameDescription
fertilization rate post intracytoplasmic sperm injection16-18 hours post intracytoplasmic sperm injectionThe primary outcome measure was the fertilization rate 16-18 hours post intracytoplasmic sperm injection

Countries

China

Contacts

Primary ContactHaixiang Sun, MD
haixiang_sun@nju.edu.cn025-83106666
Backup ContactJie D Mei, MD
meijie560@163.com

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026