• BJOG · Mar 2015

    Randomized Controlled Trial

    Intravenous immunoglobulin treatment for secondary recurrent miscarriage: a randomised, double-blind, placebo-controlled trial.

    • O B Christiansen, E C Larsen, P Egerup, L Lunoee, L Egestad, and H S Nielsen.
    • Fertility Clinic 4071, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Obstetrics and Gynaecology, Aalborg University Hospital, Aalborg, Denmark.
    • BJOG. 2015 Mar 1; 122 (4): 500-8.

    ObjectiveTo determine whether infusions with intravenous immunoglobulin (IVIg) during early pregnancy increase live birth rate in women with secondary recurrent miscarriage compared with placebo.DesignA single-centre, randomised, double-blind, placebo-controlled trial.SettingA tertiary centre for recurrent miscarriage in Copenhagen, Denmark.PopulationA group of 82 women with unexplained secondary recurrent miscarriage and at least four miscarriages.MethodsWomen were randomly assigned to repeated infusions with IVIg or placebo (albumin) from the time of positive pregnancy test to gestational week 15 or pregnancy loss.Main Outcome MeasurePrimary outcome was birth with neonatal survival in all randomised women.ResultsIn the intention-to-treat analyses, live birth rates were 23/42 (54.8%) in the IVIg and 20/40 (50.0%) in the placebo group, relative risk 1.11 (95% CI 0.70-1.74). In a per protocol analysis, almost identical results were found. The median gestational length at delivery was higher in the IVIg than the placebo group (282 versus 272 days, P = 0.02) but the mean birthweight was not significantly increased.ConclusionsIn this trial, which is the largest so far, IVIg did not increase the live birth rate in patients with secondary recurrent miscarriage and the treatment cannot be recommended in clinical practice.© 2014 Royal College of Obstetricians and Gynaecologists.

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