Behavioral and neurodevelopmental outcome of children after maternal allopurinol administration during suspected fetal hypoxia: 5-year follow up of the ALLO-trial

Job Klumper, Joepe J Kaandorp, Ewoud Schuit, Floris Groenendaal, Corine Koopman-Esseboom, Eduard J H Mulder, Frank Van Bel, Manon J N L Benders, Ben W J Mol, Ruurd M van Elburg, Arend F Bos, Jan B Derks and on behalf of the ALLO-trial study Group

PLOS ONE, 2018, vol. 13, issue 8, 1-12

Abstract: Objective: To evaluate the long-term neurodevelopmental and behavioral outcome of antenatal allopurinol treatment during suspected fetal hypoxia. Study design: We studied children born from women who participated in a randomized double-blind placebo controlled multicenter study (ALLO-trial). Labouring women in whom the fetus was suspected to have fetal hypoxia were randomly allocated to receive allopurinol or placebo. At 5 years of age, the children were assessed with 2 parent reported questionnaires, the Ages and Stages Questionnaire (ASQ) and the Child Behavior Checklist (CBCL). A child was marked abnormal for ASQ if it scored below 2 standard deviation under the normative mean of a reference population in at least one domain. For CBCL, a score above the cut-off value (95th percentile for narrowband scale, 85th percentile for broadband scale) in at least one scale was marked as abnormal. Results: We obtained data from 138 out of the original 222 mildly asphyxiated children included in the ALLO-trial (response rate 62%, allopurinol n = 73, placebo n = 65). At 5 years of age, the number of children that scored abnormal on the ASQ were 11 (15.1%) in the allopurinol group versus 11 (9.2%) in the placebo group (relative risk (RR) 1.64, 95% confidence interval (CI): 0.64 to 4.17, p = 0.30). On CBCL 21 children (30.4%) scored abnormal in de allopurinol group versus 12 children (20.0%) in the placebo group (RR 1.52, 95% CI: 0.82 to 2.83, p = 0.18). Conclusion: We found no proof that allopurinol administered to labouring women with suspected fetal hypoxia improved long-term developmental and behavioral outcome. These findings are limited due to the fact that the study was potentially underpowered. Trial registration: NCT00189007 Dutch Trial Register NTR1383

Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0201063

DOI: 10.1371/journal.pone.0201063

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