Fertilization in Vitro Clinical Trial
Official title:
The Effect of Reducing Ejaculation Abstinence Time on Assisted Reproductive Technology Outcomes: a Prospective Randomized Controlled Study
NCT number | NCT06410417 |
Other study ID # | 2024-HS-035 |
Secondary ID | |
Status | Recruiting |
Phase | N/A |
First received | |
Last updated | |
Start date | May 1, 2024 |
Est. completion date | August 1, 2025 |
The goal of this clinical trial is to learn if reducing the ejaculation abstinence time can improve the outcome of assisted reproductive technology. The main questions it aims to answer are: Does reducing the duration of ejaculation abstinence improve the clinical pregnancy rate for in vitro fertilization and intracytoplasmic sperm injection? Does reducing the duration of ejaculation abstinence improve embryo quality in in vitro fertilization and intracytoplasmic sperm injection? Does reducing the duration of ejaculation abstinence affect pregnancy loss and live birth rates in in vitro fertilization and intracytoplasmic sperm injection? Researchers will compare less than 48 hours of abstinence time to more than 48 hours, to see if less than 48 hours of abstinence time improved in vitro fertilization outcomes Participants will: Control group abstinence for 3-7 days The experimental group ejaculated once on human chorionic gonadotropin trigger day Follow up their in vitro fertilization outcomes
Status | Recruiting |
Enrollment | 500 |
Est. completion date | August 1, 2025 |
Est. primary completion date | May 1, 2025 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 20 Years to 45 Years |
Eligibility | Inclusion Criteria: - The couple is between 20 and 45 years old, and the woman's body mass index is greater than 18.5 and less than 30kg/m2. - Meet the indications of assisted reproductive technology, agree to use assisted reproductive technology to assist pregnancy and have entered the process. - The male has normal ejaculation function and plans to provide a semen sample by masturbation method on the day of egg retrieval. Exclusion Criteria: - Couples with serious infections and major physical diseases, such as HIV. - The use of testicular sperm for intracytoplasmic sperm injection, such as the azoospermia. - The use of frozen sperm for assisted reproductive technology. - Endometriosis, repeated implantation failure, etc. - There are clear factors affecting semen parameters within 3 months before sperm extraction, including high temperature, contact with chemicals,radiation or drugs that affect sperm, etc.;Previous orchitis/epididymitis, cryptorchidism, receiving radiotherapy and chemotherapy treatment |
Country | Name | City | State |
---|---|---|---|
China | the first hospital of Jilin University | Chang chun | Jilin |
Lead Sponsor | Collaborator |
---|---|
The First Hospital of Jilin University |
China,
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Sanchez-Martin P, Sanchez-Martin F, Gonzalez-Martinez M, Gosalvez J. Increased pregnancy after reduced male abstinence. Syst Biol Reprod Med. 2013 Oct;59(5):256-60. doi: 10.3109/19396368.2013.790919. Epub 2013 May 8. — View Citation
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* Note: There are 19 references in all — Click here to view all references
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | The pregnancy rate of different abstinence periods in in vitro fertilization. | All participants underwent ultrasound examination four weeks after embryo transfer. A gestational sac was considered a clinical pregnancy (+), while the absence of a gestational sac was considered a non-clinical pregnancy (-).
Clinical pregnancy rate = (number of clinical pregnancy (+) cycles/transplant cycles) ×100%. The aim was to compare the difference in pregnancy rates between the two groups. |
A year | |
Primary | The fertilization rate of different abstinence periods in in vitro fertilization. | Fertilization rate = (number of fertilized eggs/number of eggs harvested) ×100%.
The above parameters were evaluated by experienced embryologists according to the evaluation criteria and recorded in the medical record. The aim was to compare the difference in fertilization rate between the two groups. |
A year | |
Primary | The high-quality embryo rate of different abstinence periods in in vitro fertilization. | High-quality embryo rate = (number of high-quality embryos/number of normal fertilized cleavage embryos) ×100%.
The above parameters were evaluated by experienced embryologists according to the evaluation criteria and recorded in the medical record. The aim was to compare the difference in high-quality embryo rate between the two groups. |
A year | |
Secondary | The pregnancy loss rate of different abstinence periods in in vitro fertilization. | Pregnancy loss rate = number of pregnancy loss cycles/transplant cycles ×100%. Follow-up should be conducted for couples who are already clinically pregnant to record any pregnancy loss that occurs within 24 weeks of gestation.
The aim was to compare the difference in pregnancy loss rate between the two groups. |
1.5 years | |
Secondary | The live birth rates of different abstinence periods in in vitro fertilization. | Live birth rate = number of live birth cycles/transplant cycles ×100%. Translation: Continued follow-up is advised for couples who are already clinically pregnant to document the number of live births.
The aim was to compare the difference in live birth rates between the two groups. |
1.5 years |
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