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Impact of Gonadotrophin Releasing Hormone Analogues on Oocyte and Embryo Quality

NCT03139474 · Status: UNKNOWN · Phase: PHASE2/PHASE3 · Type: INTERVENTIONAL · Enrollment: 120

Last updated 2017-05-04

No results posted yet for this study

Summary

The first In-Vitro Fertilization cycles were performed in natural unstimulated cycles. Today gonadotrophins are administered to induce multiple follicular development and controlled ovarian hyperstimulation. During ovarian stimulation gonadotrophin-releasing hormone analogues are co-administered in order to prevent premature luteinizing hormone surges. Premature luteinizing hormone surges are observed in about 20% of stimulated cycles without using gonadotrophin-releasing hormone analogues .

Avoiding the adverse effects of elevated luteinizing hormone levels, first gonadotrophin-releasing hormone agonist analogues were used to supplement the gonadotrophin stimulation. The continuous administration of gonadotrophin-releasing hormone agonists causes gonadotrophin suppression through down-regulation and desensitization of the gonadotrophin-releasing hormone receptors in the pituitary gland after an initial short period of gonadotrophin hypersecretion .

Gonadotrophin-releasing hormone antagonists (cetrorelix and ganirelix) cause immediate and rapid gonadotrophin suppression by competitive antagonism of the gonadotrophin-releasing hormone receptor in the pituitary without an initial period of gonadotrophin hypersecretion. Several advantageous effects of cetrorelix were established , and these effects seemed to be independent from the type of antagonist used for luteinizing hormone-suppression.The quality of oocytes and developing preembryos is one of the most relevant factors determining the success of an In-Vitro Fertilization treatment. As ovarian stimulation protocol is one of the eligible factors during an In-Vitro Fertilization treatment, its embryo quality influencing effects are necessary to know.

Conditions

  • Infertility, Female

Interventions

DRUG

Gonadotropin-Releasing Hormone Analogue

Triptorelin at a dose 1 mg per day from the midluteal phase of the cycle preceding the treatment cycle to day 2 of the cycle then 0.5 milligram of triptorelin will be used during the period of stimulation.

DRUG

Gonadotropin releasing hormone antagonist

antagonist group :Multiple dose gonadotrophin-releasing hormone antagonist regimen will be used for ovarian stimulation 0.25 microgram per day cetrorelix will be administered from the 6th day of ovarian stimulation or from the presence of follicle 14 millimeter diameter .We will give them gonadotrophin for 5 days , Triggering by Human Chorionic Gonadotrophin will be administered for each group when size of follicle reach \> 17 millimeter .Oocytes will retrieved by transvaginal ultrasound , 34-36 hours after Human Chorionic Gonadotrophin administration .

Sponsors & Collaborators

  • Assiut University

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
38 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2017-06-01
Primary Completion
2019-06-01
Completion
2020-06-01

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03139474 on ClinicalTrials.gov