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no women were recruited
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During assisted reproduction technology treatments like in vitro fertilization, some patients give a poor ovarian response to controlled ovarian hyperstimulation. The European Society of Human Reproduction and Embryology consensus defined poor response to ovarian stimulation during in vitro fertilization with Bologna criteria.
Bologna criteria: At least two of the following three features must be present:
(i) Advanced maternal age (≥40 years). (ii) Previous Poor responders (≤3 oocytes with a conventional stimulation protocol).
(iii) An abnormal ovarian reserve test Most controlled ovarian hyperstimulation regimens currently used for expected poor responders are based on using a high daily dose (300- 450 IU/day) of exogenous gonadotropins. Giving a high gonadotropin dose obviously increases the cost of in vitro fertilization, a consequence that would be acceptable if paralleled by an improvement in in vitro fertilization outcome. Unfortunately, however, the available data suggest that increasing the daily gonadotropins dose may increase the number of retrieved oocytes, but not the final success rate of in vitro fertilization.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Soft ovarian stimulation protocol | Other |
| |
| conventional ovarian stimulation protocol | Other |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Letrozole | Drug | Oral tablet letrozole 2,5 mg/twice daily for 5 days |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Total gonadotrophins dose | 14 days |
| Measure | Description | Time Frame |
|---|---|---|
| Duration of ovarian stimulation | 14 days | |
| Endometrial thickness | by ultrasounds | 14 days |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Women Health Hospital - Assiut university | Asyut | 71111 | Egypt |
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| ID | Term |
|---|---|
| D000077289 | Letrozole |
| D008596 | Menotropins |
| ID | Term |
|---|---|
| D009570 | Nitriles |
| D009930 | Organic Chemicals |
| D014230 | Triazoles |
| D001393 | Azoles |
| D006573 |
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| Menotropins |
| Drug |
150 IU of highly purified menotropins intramuscular |
|
| recombinant Follicular stimulating hormone | Drug | recombinant Follicular stimulating hormone 300- 400 IU |
|
| Heterocyclic Compounds, 1-Ring |
| D006571 | Heterocyclic Compounds |
| D006065 | Gonadotropins, Pituitary |
| D006062 | Gonadotropins |
| D036361 | Peptide Hormones |
| D006728 | Hormones |
| D006730 | Hormones, Hormone Substitutes, and Hormone Antagonists |
| D010908 | Pituitary Hormones, Anterior |
| D010907 | Pituitary Hormones |
| D010455 | Peptides |
| D000602 | Amino Acids, Peptides, and Proteins |
| D001688 | Biological Products |
| D045424 | Complex Mixtures |