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2017 ; 96
(11
): e6338
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Effect on mother and child of eculizumab given before caesarean section in a
patient with severe antiphospholipid syndrome: A case report
#MMPMID28296762
Gustavsen A
; Skattum L
; Bergseth G
; Lorentzen B
; Floisand Y
; Bosnes V
; Mollnes TE
; Barratt-Due A
Medicine (Baltimore)
2017[Mar]; 96
(11
): e6338
PMID28296762
show ga
RATIONALE: Antiphospholipid syndrome (APS) in pregnancy may trigger the
life-threatening catastrophic antiphospholipid syndrome (CAPS). Complement
activation is implicated in the pathogenesis, and inhibition of complement factor
C5 is suggested as an additional treatment option. PATIENT CONCERNS, DIAGNOSIS
AND INTERVENTIONS: We present a pregnant patient treated with the C5-inhibitor
eculizumab due to high risk of developing devastating APS-related complications.
The complement inhibitory effects of the treatment were examined both in the
patient and the premature infant. OUTCOMES: Complement activity in the mother
recovered considerably faster than anticipated; however, no new thrombosis or
CAPS developed during the last week of pregnancy or postpartum. Blood sampling
from the umbilical vein and artery, and from the infant after delivery showed low
complement activity; however, only 0.3% of the eculizumab concentration detected
in the mother, consistent with low placental passage of eculizumab. LESSONS: The
data underscore the importance of close monitoring of complement inhibition and
individualizing dosage regimens in pregnant patients receiving eculizumab. We
document how traditional functional complement activity tests cannot assess the
effect of eculizumab in premature infants due to the very low levels of
complement factors detected in this infant born in gestational week 33. Only
trace amounts of eculizumab passed the placenta. In conclusion, complement C5
inhibition might be a safe candidate treatment option for APS during pregnancy
and delivery, and additionally, enables prolongation of pregnancy with important
weeks.
|Antibodies, Monoclonal, Humanized/administration &
dosage/pharmacokinetics/*therapeutic use
[MESH]