Objective: To assess the efficacy of a novel protocol-microdose GnRH agonist (GnRH-a), FSH, and GH, for the stimulation of IVF patients who were canceled previously on a standard luteal GnRH-a, FSH, GH protocol.

Design: Prospective evaluation using the patient's previous IVF stimulation attempt as historic controls.

Setting: Private practice assisted reproductive technology center.

Participant(s): Thirty-two patients who had prior ovulation induction cycles canceled using luteal phase GnRH-a suppression followed by exogenous gonadotropins and GH.

Intervention(s): Precycle treatment with oral contraceptives followed by follicular phase administration of 40 micrograms leuprolide acetate every 12 hours beginning on cycle day 3 and FSH supplemented with GH beginning on cycle day 5.

Main outcome measure(s): Paired analysis of E2 day 5, number of follicles, ampules of FSH required, and cancellation rate. The number of oocytes, embryos, embryo quality, implantation rate, and pregnancy rate (PR) were determined for completed cycles on the microdose GnRH-a, FSH, GH protocol.

Result(s): Controlled ovarian hyperstimulation was superior during microdose GnRH-a, FSH, GH stimulation when compared with the prior luteal GnRH-a cycle. Specifically, there was a higher E2 response, more oocytes, fewer cycle cancellations, and no premature LH surge or luteinization. The microdose GnRH-a, FSH, GH protocol produced an average of 10 oocytes and a 50% ongoing PR.

Conclusion(s): The microdose GnRH-a, FSH, GH protocol is superior to standard protocols for the treatment of patients with decreased ovarian reserve undergoing controlled ovarian hyperstimulation for IVF.