Journal
ALIMENTARY PHARMACOLOGY & THERAPEUTICS
Volume 56, Issue 3, Pages 477-490Publisher
WILEY
DOI: 10.1111/apt.16960
Keywords
congenital anomalies; inflammatory diseases; pregnancy; safety database; ustekinumab
Funding
- Janssen Research and Development, LLC
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This study evaluated the pregnancy outcomes of patients exposed to ustekinumab during pregnancy. The results showed that the rates of adverse pregnancy outcomes or congenital anomalies with ustekinumab exposure were similar to those reported for the general population in the US, indicating no increased risk associated with maternal or paternal exposure to ustekinumab.
Background Ustekinumab (STELARA (R)), a human immunoglobulin G1 monoclonal antibody that binds to and inhibits interleukin (IL)-12/IL-23 activity, is indicated for multiple immune-mediated diseases. Ustekinumab is actively transported across the placenta and theoretically could impact pregnancy outcomes. Limited data on pregnancy outcomes with ustekinumab exposure are available. Aim Assess pregnancy outcomes in patients exposed to ustekinumab during pregnancy. Methods Cumulative data on medically confirmed ustekinumab-exposed pregnancies from Janssen's Global Safety Database (JGSD) were summarised. Descriptive data for pregnancy outcomes were presented overall and by patient subgroups. Results As of 31 August 2020, 408 medically confirmed, prospective, maternal ustekinumab-exposed pregnancies with reported outcomes were identified from JGSD. The mean maternal age was 31 years. Of the 420 pregnancy outcomes (including 4 sets of twins),(a)(,)(b) 340 (81%) were live births, 51 (12.1%) spontaneous abortions, 25 (6%) elective/induced abortions, 3 (0.7%) still births and 1 (0.2%) ongoing pregnancy with foetal congenital anomaly (CA). Among 340 live births, 33 (9.7%) were born preterm. The rate of major CAs was similar by indication (Crohn's disease vs psoriasis), ustekinumab dose (45 mg vs 90 mg) and timing and duration of maternal exposure to ustekinumab. Prospective outcomes of pregnancies with paternal periconceptional ustekinumab exposure (n = 87) included 92% live births (1.2% major CA), 5.7% spontaneous abortions and 2.3% elective/induced abortions. Conclusions Rates of adverse pregnancy outcomes or CAs with ustekinumab exposure from JGSD are consistent with rates reported for the US general population and do not suggest a higher risk associated with maternal or paternal exposure to ustekinumab.
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