Frozen Embryo Transfer, Obesity, Tirzepatide
Conditions
Brief summary
To evaluate the efficacy and safety of Dual GIP/GLP-1 receptor agonist pretreatment on reproductive outcomes in obese women before frozen embryo transfer.
Interventions
16 weeks treatment
Sponsors
Study design
Eligibility
Inclusion criteria
1. Women aged 20-40 years; 2. Body Mass Index(BMI) ≥ 28kg/m2; 3. Women who intend to undergo frozen-thawed embryo transfer; 4. At least one embryo available for transfer; 5. Be capable of giving informed consent.
Exclusion criteria
1. Women who have been diagnosed with diseases affecting uterine cavity or endometrial receptivity; 2. Presence of endocrine disorders that may significantly affect body weight; 3. Use of drugs that may cause significant weight changes within 8 weeks before screening; 4. Presence of contraindications to the use of dual GIP/GLP-1 receptor agonist; 5. Previous bariatric surgery (e.g., gastric bypass) or planning to undergo such surgery during the study period; 6. Serum triglycerides (TG) \> 5.64mmol/L; 7. Calcitonin≥50 ng/L; 8. Presence of medical contraindications to assisted reproductive technology and/or pregnancy; 9. Any other condition considered inappropriate for participation by the investigator.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Good birth outcome rate | at delivery | good birth outcome is defined as live birth(s) at ≥37 weeks, with infant birth weight between 2500 and 4000g and without a major congenital anomaly. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Biochemical pregnancy rate | 12-17 days after frozen embryo transfer | biochemical pregnancy is defined as serum beta-human chorionic gonadotropin (β-hCG) ≥10 mIU/ml. |
| Clinical pregnancy rate | 28-35 days after frozen embryo transfer | clinical pregnancy is defined as the ultrasound confirmation of at least one intrauterine gestational sac. |
| Implantation rate | 28-35 days after frozen embryo transfer | implantation rate is calculated as the number of gestational sacs by a transvaginal ultrasound scan/number of embryos transferred. |
| Pregnancy loss rate | From the date of confirmation of pregnancy until the date of pregnancy loss, up to 9 months | pregnancy loss is defined as pregnancies that eventuate in a spontaneous abortion or therapeutic abortion that occurred throughout pregnancy. |
| Live birth rate | at delivery | live birth is defined as the delivery of any neonate with signs of life at ≥ 28 weeks of gestation. |
| Gestational weight gain | at delivery | maternal weight gain during pregnancy. |
| Incidences of obstetric and neonatal complications | From the establishment of clinically recognized pregnancy until six weeks after delivery | including gestational diabetes mellitus, pre-eclampsia, placenta previa, placental abruption, congenital anomalies, postpartum hemorrhage, preterm birth, neonatal respiratory distress syndrome, neonatal jaundice, neonatal infection, neonatal death, etc. |
| Incidence of composite endpoint of obesity-related pregnancy complications | From the establishment of clinically recognized pregnancy until six weeks after delivery | composite incidences of miscarriage, gestational diabetes mellitus, hypertensive disorders of pregnancy, and preterm birth. |
| Birth weight | at delivery | birth weight of the newborn at delivery. |
| Incidence of congenital anomalies | From the establishment of clinically recognized pregnancy until six weeks after delivery | congenital malformations or birth defects. |
Countries
China