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GnRH Agonist (GnRHa) Withdrawal at Late Stage of Long Protocol and the Incidence of Ovarian Hyper-stimulation

Study of Effect of GnRHa Withdrawal at Late Stage of Long Protocol on the Risk of Ovarian Hyper-stimulation in Patients With Polycystic Ovary (PCO) Undergoing in Vitro Fertilization/Intracytoplasmic Sperm Injection Cycles

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01634724
Enrollment
96
Registered
2012-07-06
Start date
2012-07-31
Completion date
2013-06-30
Last updated
2012-07-10

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

Conditions

Infertile High-risk Patients With Polycystic Ovaries

Keywords

GnRH agonist withdrawal, OHSS, E2, VEGF

Brief summary

To test whether GnRHa withheld 2-3 days before ovulation trigger reduces the incidence of ovarian hyperstimulation syndrome (OHSS) in infertile high-risk patients with polycystic ovaries (PCOs) who have been treated with gonadotropins for in vitro fertilization (IVF) or Intracytoplasmic sperm injection (ICSI).

Detailed description

All the patients received a midluteal long GnRH agonist (GnRH-a) and a gonadotropins (recombinant FSH) stimulation protocol. Pituitary down-regulation with GnRH agonist (triptorelin, 0.1mg/d, ×10d, then 0.05mg/d until E2 ≤40 pg/ml in serum), was initiated during the luteal phase on the cycle-day 21. Two weeks later, if E2 in serum was ≤40 pg/ml and absence of follicular activity was detected, the stimulation of ovaries was started by recombinant follicle-stimulating hormone (recFSH, Gonal-F, Serono, Switzerland) with doses ranging 150-250 IU/d. Doses were adjusted accordingly with ovarian monitoring and follicles growth. GnRHa (0.05mg/d) was injected stimulously with FSH before dominant follicles were ≥ 14 mm. When the diameter of one or more follicles was ≥ 14 mm, GnRHa (0.05mg/d) was withheld in the study group. In the control group, GnRHa was used to the day of ovulation trigger. Ovulation was induced with HCG (5000-10000 IU) when at least three follicles greater than 16mm in diameter were detected on ultrasound examination and the leading follicles reached ≥ 18 mm in diameter. Oocytes retrieval for IVF or ICSI was performed 34-36 hours later under transvaginal ultrasound guidance. Main Outcome Measure(s): Serum E2 levels, VEGF levels in Serum and follicular fluids, retrieved oocytes, fertilization, implantation rate and pregnancy rate (PR), the rate of OHSS.

Interventions

DRUGa drug withdrawal during the long protocol

GnRHa (triptorelin,0.05mg/d) was injected stimulously with FSH before dominant follicles were ≥ 14 mm. When the diameter of one or more follicles was ≥ 14 mm, GnRHa (triptorelin,0.05mg/d) was withheld in the study group.

Sponsors

Nanjing University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

ninety-six infertile patients with PCOs (12 or more follicles 2-9 mm in diameter were detected in ovaries by ultrasound detection) undergoing IVF treatment were enrolled.

Exclusion criteria

the subjects included the followings: a basal FSH level of \> 10IU/L; age \>35 years; a body mass index (BMI) \> 30 kg/m2; ovarian surgery radiotherapy or chemotherapy; ovarian dysfunction; endometriosis; hyperprolactinemia; thyroid dysfunction; the presence of organic pelvic diseases.

Design outcomes

Primary

MeasureTime frameDescription
incidence of ovarian hyperstimulationtwo weeksOvarian hyperstimulation syndrome is a complication from some forms of fertility medication. Most cases are mild, but a small proportion are severe. Symptoms are set into 3 categories: mild, moderate, and severe.

Secondary

MeasureTime frame
pregnancy rate in the patients with IVF or ICSIone month

Countries

China

Contacts

Primary ContactBin Wang, Master
wangbin_429@sina.com86-25-8310-7170

Outcome results

None listed

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