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Review
. 2014 May;101(5):1205-8.
doi: 10.1016/j.fertnstert.2014.03.026.

Live birth is the correct outcome for clinical trials evaluating therapy for the infertile couple

Affiliations
Review

Live birth is the correct outcome for clinical trials evaluating therapy for the infertile couple

Kurt T Barnhart. Fertil Steril. 2014 May.

Abstract

Well-designed and -conducted clinical trials are needed to further advance the field for reproductive medicine. However, current reporting of outcomes of trials is ambiguous and disparate. In this review it is offered that the preferred outcome for clinical trials in reproductive medicine should be live birth. Multiple births should be listed, and it should be specified whether this is multiple births per couple or multiple births per conception. The unit of measure should be women (or couples) and not cycles. The duration of exposure should also be clearly identified (i.e., treatment was one cycle, a prespecified number of cycles, or a period of time). Pregnancy loss should be specified, and the denominator should be those who conceived. Although live birth is the primary outcome, complications should be defined and reported, including multiple births and other objective markers, such as preterm delivery, small-for-gestational age, or stillbirth.

Keywords: Infertility; clinical trial; live birth; outcome.

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References

    1. Dapuzzo L, Seitz FE, Dodson WC, Stetter C, Kunselman AR, Legro RS. Incomplete and inconsistent reporting of maternal and fetal outcomes in infertility treatment trials. Fertil Steril. 2011;95:2527–2530. - PMC - PubMed
    1. Johnson NP, Proctor M, Farquhar CM. Gaps in the evidence for fertility treatment-an analysis of the Cochrane Menstrual Disorders and Subfertility Groups database. Hum Reprod. 2003;18:947–954. - PubMed
    1. Schlaff WD. Barriers to conducting clinical research in reproductive medicine around the world. Fertil Steril. 2011;96:801. - PubMed
    1. Schulz KF, Altman DG, Moher D, Group C. CONSORT 2010 Statement: updated guidelines for reporting parallel group randomized trials. Obstet Gynecol. 2010;115:1063–1070. - PubMed
    1. Martin JA, Hamilton BE, Sutton PD, et al. Births: final data for 2009. National Vital Stat Rep. 2009;57:1–104. - PubMed