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The effectiveness and safety of the early follicular phase full-dose down-regulation protocol for controlled ovarian hyperstimulation: a randomized, paralleled controlled, multicenter trial

The effectiveness and safety of the early follicular phase full-dose down-regulation protocol for controlled ovarian hyperstimulation: a randomized, paralleled controlled, multicenter trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR1900020636
Enrollment
Unknown
Registered
2019-01-11
Start date
2019-02-01
Completion date
Unknown
Last updated
2019-01-14

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

Conditions

infertility

Interventions

intervention group:early follicular phase full-dose down-regulation controlled ovarian hyperstimulation
placebo group:luteal phase down-regulation controlled ovarian hyperstimulation

Sponsors

Peking university People's Hospital
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
20 Years to 38 Years

Inclusion criteria

Inclusion criteria: 1. Women aged between 20 to 38 years old and with a history of infertility (failing to get pregnant after over one years regular, unprotected sex), who receive IVF/ICSI for one of the following reasons: (1) Tubal factor: e.g. peritubal adhesions, tubal obstruction, etc.. Patients with hydrosalpinx can be enrolled after salpingectomy or tubal ligation; (2) Male factor: e.g. oligospermia, asthenozoospermia, teratozoospermia, etc.; (3) Unexplained infertility: patients with a history of infertility more than 1 year but with no specific cause for infertility (ovulation, tubal, endometrial and male factor), or still not get pregnant after the above-mentioned causes being removed; 2. Women who start their first IVF/ICSI cycle; 3. Women with a normal ovarian reserve tests results 6 months before recruiting according to: (1) basal steroid hormone on day 2-4 of menstrual cycle: basal FSH=10mIU/ml, estradiol (E2) <50pg/ml; (2) anti-Müllerian hormone (AMH)=1.1ng/ml; (3) antral follicle count (AFC) =7; 3. Women who start their first IVF/ICSI cycle; 4. Women who have given the informed consent.

Exclusion criteria

Exclusion criteria: 1. Women with a negative reproductive history, including a history of: (1) recurrent miscarriage: women with twice and more than twice spontaneous miscarriage, missed abortion, biochemical pregnancies, etc.; (2) fetal malformation or chromosomal abnormalities; (3) intrauterine death. 2. Women with a history of one side adnexectomy; 3. Women with a poor ovarian response or diminished ovarian reserve (based on Bologna' criteria); 4. Women with ovulation dysfunction; 5. Women with PCOS (based on Rotterdam's criteria); 6. Women with endometriosis; 7. Women with the following uterine abnormalities: uterine malformation (unicornuate uterus, uterus bicornis, uterus duplex, mediastinum uterus), adenomyosis, submucosa myoma, intrauterine adhesion; 8. Chromosomal abnormality for either or both of the couple; 9. Women with contraindications for ART or pregnancy: uncontrolled diabetes mellitus, cardiac disease, undiagnosed liver and/or renal function, vaginal bleeding, suspected or a past history of cervical cancer, endometrial cancer, breast cancer, and a history of deep venous thrombosis, pulmonary embolism, stroke, etc.; 10. Women who are enrolled in other clinical trials.

Design outcomes

Primary

MeasureTime frame
live birth rate per transferred cycle;

Secondary

MeasureTime frame
live birth rate per stimulated cycle;cumulative live birth rate;time to pregnancy;clinical pregnancy rate;biochemical pregnancy rate;continuous pregnancy rate;the number of retrieved oocyte;the number of MII oocyte;the thickness of endometrium on hCG day;estradiol on hCG day;progesterone on hCG day;LH on hCG day;incidence of moderate to severe OHSS;pregnancy loss rate;pregnancy complications;adverse outcomes of fetus and neonates;

Countries

China

Contacts

Public ContactLi Jiang

Peking University People's Hospital

narnia_vota@hotmail.com+86 13661212539

Outcome results

None listed

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