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Microdose follicular phase gonadotropin-releasing hormone agonist (GnRH-a) compared with luteal phase GnRH-a for ovarian stimulation at in vitro fertilization. 1999

M P Leondires, and M Escalpes, and J H Segars, and R T Scott, and B T Miller
National Institute of Child Health and Development, National Institutes of Health, Bethesda, Maryland, USA.

OBJECTIVE To compare an ovarian stimulation protocol using microdose follicular phase GnRH agonist (GnRH-a) and oral contraceptive (OC) pills to a luteal phase GnRH-a protocol. METHODS Retrospective analysis. METHODS University affiliated IVF program. METHODS One hundred seventy patients who underwent IVF and ET in 1996. METHODS Patients were assigned to either a midluteal start of leuprolide acetate (LA) 1 mg/d, reduced to 0.5 mg/d after addition of gonadotropins (LUT), or OC pills until cycle day 0 followed by 20 microg of LA every 12 hours on cycle day 3 with addition of gonadotropins on cycle day 5 (MICRO). METHODS Number of FSH ampules, days of stimulation, peak E2, and number of oocytes retrieved. RESULTS There were no statistically significant differences in the main outcome measures between the two groups using an age-matched ANOVA. Clinical pregnancy rate per cycle start was not statistically different (LUT = 54%, and MICRO = 37%). The cancellation rate was significantly higher in the MICRO group (22.5% vs. 8.2%). CONCLUSIONS Given the higher cancellation rate in the microdose group, a randomized clinical trial is required to determine the possible benefit of a lower dose of GnRH-a in patients with normal ovarian function.

UI MeSH Term Description Entries
D008183 Luteal Phase The period in the MENSTRUAL CYCLE that follows OVULATION, characterized by the development of CORPUS LUTEUM, increase in PROGESTERONE production by the OVARY and secretion by the glandular epithelium of the ENDOMETRIUM. The luteal phase begins with ovulation and ends with the onset of MENSTRUATION. Menstrual Cycle, Luteal Phase,Menstrual Cycle, Secretory Phase,Menstrual Secretory Phase,Postovulatory Phase,Phase, Luteal,Phase, Postovulatory,Secretory Phase, Menstrual
D010062 Ovulation Induction Techniques for the artifical induction of ovulation, the rupture of the follicle and release of the ovum. Ovarian Stimulation,Ovarian Stimulations,Stimulation, Ovarian,Stimulations, Ovarian
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D011966 Receptors, LHRH Receptors with a 6-kDa protein on the surfaces of cells that secrete LUTEINIZING HORMONE or FOLLICLE STIMULATING HORMONE, usually in the adenohypophysis. LUTEINIZING HORMONE-RELEASING HORMONE binds to these receptors, is endocytosed with the receptor and, in the cell, triggers the release of LUTEINIZING HORMONE or FOLLICLE STIMULATING HORMONE by the cell. These receptors are also found in rat gonads. INHIBINS prevent the binding of GnRH to its receptors. GnRH Receptors,Gonadoliberin Receptors,Gonadorelin Receptors,Gonadotropin Releasing-Hormone Receptors,LHFSHRH Receptors,LHRH Receptors,Luliberin Receptors,Receptors, GnRH,Receptors, Gonadoliberin,Receptors, Gonadorelin,Receptors, Luliberin,Follicle Stimulating Hormone-Releasing Hormone Receptors,GnRH Receptor,Gonadorelin Receptor,Gonadotropin-Releasing Hormone Receptor,LHRH Receptor,Luteinizing Hormone Releasing Hormone Receptors,Luteinizing Hormone Releasing-Hormone Receptor,Receptor, LHRH,Receptors, Gonadotropin Releasing-Hormone,Receptors, LHFSHRH,Follicle Stimulating Hormone Releasing Hormone Receptors,Gonadotropin Releasing Hormone Receptor,Gonadotropin Releasing Hormone Receptors,Hormone Receptor, Gonadotropin-Releasing,Luteinizing Hormone Releasing Hormone Receptor,Receptor, GnRH,Receptor, Gonadorelin,Receptor, Gonadotropin-Releasing Hormone,Receptors, Gonadotropin Releasing Hormone,Releasing-Hormone Receptors, Gonadotropin
D004305 Dose-Response Relationship, Drug The relationship between the dose of an administered drug and the response of the organism to the drug. Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D004624 Embryo Transfer The transfer of mammalian embryos from an in vivo or in vitro environment to a suitable host to improve pregnancy or gestational outcome in human or animal. In human fertility treatment programs, preimplantation embryos ranging from the 4-cell stage to the blastocyst stage are transferred to the uterine cavity between 3-5 days after FERTILIZATION IN VITRO. Blastocyst Transfer,Tubal Embryo Transfer,Tubal Embryo Stage Transfer,Embryo Transfers,Transfer, Embryo,Transfers, Embryo
D005260 Female Females
D005307 Fertilization in Vitro An assisted reproductive technique that includes the direct handling and manipulation of oocytes and sperm to achieve fertilization in vitro. Test-Tube Fertilization,Fertilizations in Vitro,In Vitro Fertilization,Test-Tube Babies,Babies, Test-Tube,Baby, Test-Tube,Fertilization, Test-Tube,Fertilizations, Test-Tube,In Vitro Fertilizations,Test Tube Babies,Test Tube Fertilization,Test-Tube Baby,Test-Tube Fertilizations
D005498 Follicular Phase The period of the MENSTRUAL CYCLE representing follicular growth, increase in ovarian estrogen (ESTROGENS) production, and epithelial proliferation of the ENDOMETRIUM. Follicular phase begins with the onset of MENSTRUATION and ends with OVULATION. Menstrual Cycle, Follicular Phase,Menstrual Cycle, Proliferative Phase,Menstrual Proliferative Phase,Preovulatory Phase,Phase, Follicular,Phase, Menstrual Proliferative,Phase, Preovulatory,Proliferative Phase, Menstrual
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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