To describe the peripheral serum levels of the anti-inflammatory cytokines IL-4 (Interleukin-4), IL-10 (Interleukin-10), TGF-ß1 (Transforming Growth Factor beta1), the pro-inflammatory cytokines IL-17 (Interleukin-17), IFγ (Interferon Gamma) and the immune mediator PIBF (Progesterone-Induced Blocking Factor) along a single frozen euploid blastocyst transfer in a natural cycle (NC) or Hormone Replacement Therapy (HRT).
This a prospective, observational study including 40 infertile patients undergoing a "single embryo transfer" (SET). Blood samples will be drawn for Progesterone-Induced Blocking Factor (PIBF), interleukin 17 (IL-17), Interferon Gamma (IFγ), Interleukin 10 (IL-10), Interleukin 4 (IL-4) and Transforming Growth Factor beta 1 (TGF-ß1) measurement on the day of ovulation in the natural cycle (NC) or first day of progesterone in the Hormone Replacement Therapy (HRT) protocol, on the day of embryo transfer (ET) and 3 and 10 days later, coinciding with the early and late embryo invasion stages respectively. In case of pregnancy, an additional blood test for PIBF, IL-17, IFγ, IL-10, IL-4, TGF-ß1 and ßHCG (Beta-Human Chorionic Gonadotropin) will be performed at 5 weeks +/- 3 days. The study will be performed at ART Fertility Clinics and the estimated completion time will be 12 months.
Study Type
OBSERVATIONAL
Enrollment
40
Endometrin will start once endometrial thickness is equal or higher to 7 mm with a trilaminar appearance, after at least 10 days and always less than 16 days of estradiol administration. First day of supplementation a dose of 100mg will be administered at of at 1.pm and 9 pm. From the second day and onwards administration will be increased to three times daily, at 6 am, 2 pm and 10 pm
Estradiol valerate dose will be reduced to 4mg daily at 7 pm during the first two days of vaginal natural micronized progesterone supplementation and increased afterwards to 6 mg daily (2 mg at 10 am and 4 mg at 7 pm).
ART Fertility Clinics LLC
Abu Dhabi, Abu Dhabi Emirate, United Arab Emirates
RECRUITINGBlood levels of IL-4 (Interleukin 4) on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Blood levels of IL-4 on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Time frame: 1 day
Blood levels of IL-10 (Interleukin 10) on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Blood levels of IL-10 on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Time frame: 1 day
Blood levels of IL-17 (Interleukin 17) on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Blood levels of IL-17 on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Time frame: 1 day
Blood levels of TGF-ß1 (Transforming Growth Factor beta1) on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Blood levels of TGF-ß1 on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Time frame: 1 day
Blood levels of IFγ (Interferon gamma) on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Blood levels of IFγ on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Time frame: 1 day
Blood levels of PIBF on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Blood levels of PIBF on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Time frame: 1 day
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Blood levels of IL-4 (Interleukin 4) on the day before embryo transfer
Blood levels of IL-4 on the day before embryo transfer
Time frame: 1 day
Blood levels of IL-10 (Interleukin 10) on the day before embryo transfer
Blood levels of IL-10 on the day before embryo transfer
Time frame: 1 day
Blood levels of IL-17 (Interleukin 17) on the day before embryo transfer
Blood levels of IL-17 on the day before embryo transfer
Time frame: 1 day
Blood levels of TGF-ß1 (Transforming Growth Factor beta1) on the day before embryo transfer
Blood levels of TGF-ß1 on the day before embryo transfer
Time frame: 1 day
Blood levels of IFγ (Interferon gamma) on the day before embryo transfer
Blood levels of IFγ on the day before embryo transfer
Time frame: 1 day
Blood levels of PIBF (Progesterone induced blocking factor) on the day before embryo transfer
Blood levels of PIBF on the day before embryo transfer
Time frame: 1 day
Blood levels of IL-4 (Interleukin 4) on the day of embryo transfer
Blood levels of IL-4 on the day of embryo transfer
Time frame: 1 day
Blood levels of IL-10 (Interleukin 10) on the day of embryo transfer
Blood levels of IL-10 on the day of embryo transfer
Time frame: 1 day
Blood levels of IL-17 (Interleukin 17) on the day of embryo transfer
Blood levels of IL-17 on the day of embryo transfer
Time frame: 1 day
Blood levels of TGF-ß1 (Transforming Growth Factor beta1) on the day of embryo transfer
Blood levels of TGF-ß1 on the day of embryo transfer
Time frame: 1 day
Blood levels of IFγ (Interferon gamma) on the day of embryo transfer
Blood levels of IFγ on the day of embryo transfer
Time frame: 1 day
Blood levels of PIBF (Progesterone induced blocking factor) on the day of embryo transfer
Blood levels of PIBF on the day of embryo transfer
Time frame: 1 day
Blood levels of IL-4 (Interleukin 4) three days after embryo transfer
Blood levels of IL-4 three days after embryo transfer
Time frame: 3 days
Blood levels of IL-10 (Interleukin 10) three days after embryo transfer
Blood levels of IL-10 three days after embryo transfer
Time frame: 3 days
Blood levels of IL-17 (Interleukin 17) three days after embryo transfer
Blood levels of IL-17 three days after embryo transfer
Time frame: 3 days
Blood levels of TGF-ß1 (Transforming Growth Factor beta1) three days after embryo transfer
Blood levels of TGF-ß1 three days after embryo transfer
Time frame: 3 days
Blood levels of IFγ (Interferon gamma) three days after embryo transfer
Blood levels of IFγ three days after embryo transfer
Time frame: 3 days
Blood levels of PIBF (Progesterone induced blocking factor) three days after embryo transfer
Blood levels of PIBF three days after embryo transfer
Time frame: 3 days
Blood levels of IL-4 (Interleukin 4) ten days after embryo transfer
Blood levels of IL-4 ten days after embryo transfer
Time frame: 10 days
Blood levels of IL-10 (Interleukin 10) ten days after embryo transfer
Blood levels of IL-10 ten days after embryo transfer
Time frame: 10 days
Blood levels of IL-17 (Interleukin 17) ten days after embryo transfer
Blood levels of IL-17 ten days after embryo transfer
Time frame: 10 days
Blood levels of TGF-ß1 (Transforming Growth Factor beta1) ten days after embryo transfer
Blood levels of TGF-ß1 ten days after embryo transfer
Time frame: 10 days
Blood levels of IFγ (Interferon gamma) ten days after embryo transfer
Blood levels of IFγ ten days after embryo transfer
Time frame: 10 days
Blood levels of PIBF (Progesterone induced blocking factor) ten days after embryo transfer
Blood levels of PIBF ten days after embryo transfer
Time frame: 10 days
Blood levels of IL-4 (Interleukin 4) in case of pregnancy at 5 weeks +/- 3 days
Blood levels of IL-4 in case of pregnancy at 5 weeks +/- 3 days
Time frame: 5 weeks
Blood levels of IL-10 (Interleukin 10) in case of pregnancy at 5 weeks +/- 3 days
Blood levels of IL-10 in case of pregnancy at 5 weeks +/- 3 days
Time frame: 5 weeks
Blood levels of IL-17 (Interleukin 17) in case of pregnancy at 5 weeks +/- 3 days
Blood levels of IL-17 in case of pregnancy at 5 weeks +/- 3 days
Time frame: 5 weeks
Blood levels of TGF-ß1 (Transforming Growth Factor beta1) in case of pregnancy at 5 weeks +/- 3 days
Blood levels of TGF-ß1 in case of pregnancy at 5 weeks +/- 3 days
Time frame: 5 weeks
Blood levels of IFγ (Interferon gamma) in case of pregnancy at 5 weeks +/- 3 days
Blood levels of IFγ in case of pregnancy at 5 weeks +/- 3 days
Time frame: 5 weeks
Blood levels of PIBF (Progesterone induced blocking factor) in case of pregnancy at 5 weeks +/- 3 days
Blood levels of PIBF in case of pregnancy at 5 weeks +/- 3 days
Time frame: 5 weeks
Blood levels of estradiol on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Blood levels of estradiol on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Time frame: 1 day
Blood levels of progesterone on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Blood levels of progesterone on the on the day of progesterone rise (NC) or first day of progesterone administration (HRT)
Time frame: 1 day
Blood levels of estradiol on the day before embryo transfer
Blood levels of estradiol on the day before embryo transfer
Time frame: 1 day
Blood levels of progesterone on the day before embryo transfer
Blood levels of progesterone on the day before embryo transfer
Time frame: 1 day
Blood levels of estradiol on the day of embryo transfer
Blood levels of estradiol on the day of embryo transfer
Time frame: 1 day
Blood levels of progesterone on the day of embryo transfer
Blood levels of progesterone on the day of embryo transfer
Time frame: 1 day
Blood levels of estradiol three days after embryo transfer
Blood levels of estradiol three days after embryo transfer
Time frame: 3 days
Blood levels of progesterone three days after embryo transfer
Blood levels of progesterone three days after embryo transfer
Time frame: 3 days
Blood levels of estradiol ten days after embryo transfer
Blood levels of estradiol ten days after embryo transfer
Time frame: 10 days
Blood levels of progesterone ten days after embryo transfer
Blood levels of progesterone ten days after embryo transfer
Time frame: 10 days
Blood levels of estradiol in case of pregnancy at 5 weeks +/- 3 days
Blood levels of estradiol in case of pregnancy at 5 weeks +/- 3 days
Time frame: 5 weeks
Blood levels of progesterone in case of pregnancy at 5 weeks +/- 3 days
Blood levels of progesterone in case of pregnancy at 5 weeks +/- 3 days
Time frame: 5 weeks
Blood levels of ß-hCG (Beta-Human Chorionic Gonadotropin) three days after embryo transfer
Blood levels of ß-hCG three days after embryo transfer
Time frame: 3 days
Blood levels of ß-hCG (Beta-Human Chorionic Gonadotropin) ten days after embryo transfer
Blood levels of ß-hCG ten days after embryo transfer
Time frame: 10 days
Blood levels of ß-hCG (Beta-Human Chorionic Gonadotropin) in case of pregnancy at 5 weeks +/- 3 days
Blood levels of ß-hCG in case of pregnancy at 5 weeks +/- 3 days
Time frame: 5 weeks
Pregnancy rate
Number of patients with a ß-hCG \> 5 IU out of the number of patients who underwent an embryo transfer.
Time frame: 10 days
Clinical pregnancy rate
Number of patients with an ultrasonographic visible sac out of the number of patients who underwent an embryo transfer
Time frame: 5 weeks and 3 days
Miscarriage rate
Number of patients with a pregnancy loss out of the number of patients who had a ß-hCG \> 5 IU after embryo transfer
Time frame: 12 weeks