Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT01730170 |
Other study ID # |
IRB00060793 |
Secondary ID |
2U01NS038455-11A |
Status |
Completed |
Phase |
|
First received |
|
Last updated |
|
Start date |
January 2013 |
Est. completion date |
December 12, 2022 |
Study information
Verified date |
July 2023 |
Source |
Stanford University |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Observational
|
Clinical Trial Summary
Epilepsy is one of the most common neurological disorders affecting women of childbearing
age. Poor pregnancy outcomes are increased in these women and their children. The proposed
studies will increase our knowledge on multiple levels to improve care and reduce adverse
outcomes in these mothers and children. An overall goal of this study is to establish the
relationship between antiepileptic drug exposure and outcomes in the mother and child as well
as describe and explain the variability in antiepileptic drug exposure and response.
Description:
There is a compelling need for prospective, properly controlled studies in women with
epilepsy (WWE) during pregnancy to improve maternal and child outcomes. The proposed
investigations are pertinent to the National Institute of Neurological Disorders and Stroke
Epilepsy Research Benchmarks and will address multiple gaps in our knowledge noted by the
recent American Academy of Neurology guidelines. This multicenter investigation will employ a
prospective, observational, parallel-group, cohort design with an established research team.
The specific aims are to:
1. Determine if women with epilepsy have increased seizures during pregnancy and delineate
the contributing factors;
2. Determine if C-section rate is increased in women with epilepsy and delineate
contributing factors;
3. Determine if women with epilepsy have an increased risk for depression during pregnancy
and post-partum period and characterize risks factors;
4. Determine the long-term effects of in utero antiepileptic drug exposure on verbal
intellectual abilities and other neurobehavioral outcomes in the children of women with
epilepsy;
5. Determine if small for gestation age and other adverse neonatal outcomes are increased
in children of women with epilepsy;
6. Determine if breastfeeding when taking antiepileptic drugs impairs the child's verbal
intellectual and other cognitive abilities.
An overall goal of the proposed research is to establish the relationship between
antiepileptic drug exposure and outcomes in the mother and child as well as describe and
explain the variability in antiepileptic drug exposure and response.
Anticonvulsant blood levels (ABLs) and area-under-the-concentration-time-curves (AUCs) will
be used as direct measures of drug exposure. The results will enable clinicians to
prospectively calculate individual dosing regimens for the mother in order to optimize dosing
and limit unnecessary drug exposure to the child. In addition, genetic samples will be
collected, which will provide a valuable resource for future pharmacogenetics studies to
further delineate individual variability across patients.
FACTORS ASSESSED IN MONEAD.
Maternal factors: IQ, age, education, employment, ethnic group, maternal and family medical
history including prior pregnancies and psychiatric disorders, socioeconomic status, site,
periconception and pregnancy folate, concomitant medications, alcohol use, tobacco use, or
other drug use during pregnancy, unwanted pregnancy, pregnancy complications, medical
diseases and serious adverse events, McMaster Family Assessment Device (FAD), Block Food
Frequency, and for WWE: types and frequency of seizures or epilepsy, antiepileptic drug
dosages & blood levels, and compliance.
Depression during pregnancy and post-partum as determined by the screening instrument (Beck
Depression Inventory-II; BDI-II), the EPDS (Edinburgh Postnatal Depression Scale) and
confirmed by the Structured Clinical Interview for DSM-IV (SCID), Beck Anxiety Inventory
(BAI), Pittsburgh Sleep Index, and Perceived Stress Scale in mothers, Parental Stress Index,
and Neurological Disorders Depression Inventory in Epilepsy (NDDI-E).
Maternal hormones (estradiol, progesterone) and Vit D will be drawn at Visit 1, 2, 3, 4, 5, 6
and 7. Maternal continine Levels will be collected via urine sample at Visit 3 on all
non-smoking mothers. If the continine result is positive for tobacco smoke exposure, an LC/MS
(liquid chromatography/mass spectrometry test.
Paternal & relative factors: In fathers and a primary maternal relative, the following were
collected: head circumference, IQ estimates, socioeconomic status, dob, race, ethnicity,
family history, and medical history. For the father, marital status, total household income,
employment status. weight, height, and handedness were also collected.
Adult IQ Assessments:
Peabody Picture Vocabulary Test (PPVT), Wechsler's Adult Intelligence Scale (WAIS).
Child factors: enrollment & birth gestational ages, birthweight, breastfeeding, AED levels
when breastfeeding, physical examinations, childhood medical diseases (including congenital
malformations), head circumference, weight, serious adverse events, developmental delays, and
special education. Also, obtained premature delivery, APGARs (1 & 5 minutes), Neonatal
Intensive Care Unit admissions and all admissions >12hrs, hypoglycemia (<45), need for
resuscitation, and neonatal death. Child Hgb, Hct, PKU, TSH, and T4 at delivery from med
records if collected.
Child Cognitive/Behavioral Assessments:
Denver II, Behavior Assessment System for Children - Parent (BASCP-2) and Teacher (BASCT-2),
Behavior Rating Inventory of Executive Functioning Preschool (BRIEFP) and version 2
(BRIEF-2), Adaptive Behavior Assessment Scale 3 (ABAS-3), Modified Checklist for Autism in
Toddlers (M-CHAT), Modified Edinburgh Handedness Inventory, Gilliam Autism Rating Scale 3
(GARS-3), Bayley Scales of Infant and Toddler Development-3 (BSID-III), Differential
Abilities Scale-II (DAS-II), Preschool Language Scale-5 (PLS-5), Peabody Picture Vocabulary
Test-4 (PPVT-4), Beery-Buktenica Developmental Test of Visual-Motor Integration-6 (VMI-6),
Torrance Test of Creative Thinking- Figural (TTCT-F), NEuroPSYchological Assessment 2nd
edition (NEPSY2), Expressive One Word Picture Vocabulary Test-4 (EOWPVT4), Wechsler's
Intelligence Scale for Children 5 (WISC5) Coding subtest, Children's Memory Scale (CMS),
Lafayette Grooved Pegboard (GPB), Wide Range Achievement Test 5th edition (WRAT5), and Social
Responsiveness Scale 2
Verbal intellectual ability at age 6 years is the ultimate primary outcome. It is determined
by Verbal Index which is average of Word Definitions and Verbal Similarities subtests from
the Differential Ability Scales-2nd ed. (DAS-II),50 -School Age Level, Expressive One-Word
Picture Vocabulary Test-4,51 the Phonological Processing, Comprehension of Instructions and
Sentence Repetition subscales from the NEPSY-2 57 and the Peabody Picture Vocabulary Test-4th
ed. (PPVT-4).52 Children will not reach age 6 in this initial grant period, so primary
outcome at age 2 will be the Language Scale from the Bayley Scales of Infant & Toddler
Development-III.
Cerebral Lateralization will be assessed as verbal minus non-verbal difference scores and
proportion of dextrals in PWWE vs. HPW and in their children as assessed by the Edinburgh
Handedness Inventory.