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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Does previous response to clomifene citrate influence the selection of gonadotropin dosage given in subsequent superovulation treatment cycles?

Purpose: To determine whether ovarian response to previous clomifene treatment could influence the selection of the starting dose of gonadotropins in subsequent in vitro fertilization ( IVF) or intra uterine insemination (IUI). Methods: Forty three anovular women who had received clomifene for ovulation induction followed by gonadotropins for IUI or IVF superovulation were reviewed retrospectively. Data on gonadotropin dose were compared between clomifene-resistant patients and clomifene responders. Results: IVF patients who had had prior superovulation/IUI treatment received similar doses of gonadotropins regardless of response to clomifene (1610 IU versus 1560 IU, p = 0.74). In IVF patients not receiving prior IUI treatment, the clomifene-resistant women were given higher doses of gonadotropins than those responding to clomifene (2500 IU versus 1440 IU, p = 0.042). Conclusions: We found that, in our Unit, clinicians appeared to use prior non-response to clomifene as a reason for prescribing a higher starting dose of gonadotropins in IVF treatment, a practice that is not evidence-based.[1]

References

  1. Does previous response to clomifene citrate influence the selection of gonadotropin dosage given in subsequent superovulation treatment cycles? Nguyen, T.H., Lennard, M.S., Ghobadi, C., Rostami-Hodjegan, A., Ledger, W.L. J. Assist. Reprod. Genet. (2006) [Pubmed]
 
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