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lack of recruitment at this site
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This research is being done to determine whether the success rate of in vitro fertilization treatment can be improved, while lowering the cost incurred from infertility medications using a pill called letrozole.
Specific Aim:
Null Hypothesis: Use of Letrozole for ovulation induction in IVF is not less expensive than the standard therapy by a clinically relevant amount.
Alternative Hypothesis: Use of Letrozole for ovulation induction in IVF is better than the standard therapy by a clinically relevant amount.
Protocol:
Infertile women <40 years of age with age-appropriate ovarian reserve (as determined by day2/3 E2, FSH, and AMH) will be randomized between two protocols: one with letrozole and one with standard ovulation induction.
In both groups, serum FSH will be measured each time a sample is obtained for estradiol. Sera will be frozen for further batch assay.
Number of embryos to be transferred will be decided following the ASRM guidelines. The day of embryo transfer (D-3 vs D-5) will be based on the number and quality of embryos as per established clinical criteria.
Power Considerations
A review of 1473 cycles of patients less than 40 years old over the last 6 years (2002 - 2008) revealed average cost per cycle to be $3,152 +/- 1685(SD).
For the purpose of this power analysis we consider a 20% decrease in medication cost to be clinically significant. Thus a decrease from $ 3152.83 to $ 2522.26 will be considered clinically significant (20% decrease). For an alpha of 0.05 and a power of 80% for a two tailed test 113 patients will need to complete each arm.
Allowing for 10% drop-out we will attempt to randomize 125 patients to each arm of the study.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Letrozole | Experimental | 1) Letrozole/ Recombinant FSH |
|
| Standard IVF | Active Comparator | luteal phase GnRHa suppression/gonadotropin |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Letrozole | Drug | 1) Letrozole 5 mg starting on cycle day 2, which will be continued until the day of trigger. Recombinant FSH at doses 100-225 units, as determined by BMI, AFC, age, and ovarian reserve markers will be added on cycle day 4. The dose will be adjusted based on the response. An antagonist will be administered once the lead follicle reaches 14-mm in diameter or when estradiol level reaches 250 pg/mL. Oocyte maturation will be triggered by 20 iu of leuprolide acetate. |
| Measure | Description | Time Frame |
|---|---|---|
| Cost of Treatment | 4 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Pregnancy and implantation rates | 4 weeks | |
| Incidence of Ovarian Hyper stimulation Syndrome | 4 weeks | |
| Multiple Birth Rate |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| David Barad, MD. MS | CHR | Study Director |
| Kutluk Oktay, MD | CHR/ New York Medical College | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Center for Human Reproduction | New York | New York | 10021 | United States |
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| ID | Term |
|---|---|
| D007246 | Infertility |
| ID | Term |
|---|---|
| D000091662 | Genital Diseases |
| D000091642 | Urogenital Diseases |
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| ID | Term |
|---|---|
| D000077289 | Letrozole |
| D010062 | Ovulation Induction |
| ID | Term |
|---|---|
| D009570 | Nitriles |
| D009930 | Organic Chemicals |
| D014230 | Triazoles |
| D001393 | Azoles |
| D006573 |
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|
|
| Std IVF Protocol | Drug | 2) Long protocol with luteal phase GnRHa suppression with gonadotropin dose at 200-450 IU. Oocyte maturation will be triggered by 250 micg of ovidrel. |
|
|
| 10 months |
| Heterocyclic Compounds, 1-Ring |
| D006571 | Heterocyclic Compounds |
| D027724 | Reproductive Techniques, Assisted |
| D012099 | Reproductive Techniques |
| D013812 | Therapeutics |
| D008919 | Investigative Techniques |