Authors: Janssens, R.M.J.; Lambalk, C.B.; Vermeiden, J.P.W.; Schats, R.; Bernards, J.M.; Rekers-Mombarg, L.T.M.

Source: Human Reproduction, Volume 15, Number 11, November 2000 , pp. 2333-2340(8)

Publisher: Oxford University Press

Abstract:

Gonadotrophin-releasing hormone agonists (GnRHa) are routinely used in IVF programmes to prevent an unwanted LH surge and consequent ovulation. Despite its widespread use in IVF, a convincing dose recommendation for GnRHa in IVF does not exist. In our opinion, the lowest possible dose of GnRHa should be used. Thus, we performed a prospective, randomized, double-blind, placebo-controlled study to determine the minimal daily dose of triptorelin acetate needed to suppress a premature LH surge during IVF treatment in a long protocol. A total of 240 women (60 in each group) was randomized to either placebo or to one of three doses of triptorelin, i.e. 15, 50 or 100 μg daily. Ovarian stimulation was performed with two or three ampoules of FSH daily. A premature LH surge occurred in 23% of placebo-treated patients, but in none of the triptorelin acetate-treated patients. There were significantly more oocytes and embryos in the 50 and 100 μg triptorelin groups. There was no dose relationship in rates of either implantation, pregnancy, ongoing pregnancy, live birth or baby take-home. In this study we showed that daily administration of 15 μg triptorelin is sufficient to prevent a premature LH surge, and that 50 μg is equivalent to 100 μg in terms of IVF results.

Keywords: dose reduction; IVF; LH surge; triptorelin

Document Type: Research article

Publication date: 2000-11-01

More about this publication?

• Human Reproduction features full-length, peer-reviewed papers reporting original research, clinical case histories, as well as opinions and debates on topical issues. Papers published cover the scientific and medical aspects of reproductive physiology and pathology, endocrinology, andrology, gonad function, gametogenesis, fertilization, embryo development, implantation, pregnancy, genetics, genetic diagnosis, oncology, infectious disease, surgery, contraception, infertility treatment, psychology, ethics and social issues. The highest scientific and editorial standard is maintained throughout the journal along with a rapid rate of publication.

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