Intervening With Opioid-Dependent MothersMothers and Infants
mABC
2 other identifiers
interventional
174
1 country
1
Brief Summary
This study will assess the efficacy of the modified Attachment and Biobehavioral Catch-Up (mABC) Intervention, adapted for use with peripartum mothers receiving medication-assisted treatment for opioid use disorder. The investigators expect that mothers who receive the modified Attachment and Biobehavioral Catch-up Intervention will show more nurturing and sensitive parenting and more adaptive physiological regulation than parents who receive a control intervention. The investigators expect that infants whose mothers receive the modified Attachment and Biobehavioral Catch-up will show better outcomes in attachment, behavior, and physiological regulation than infants of parents who receive the control intervention.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started May 2020
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 9, 2020
CompletedStudy Start
First participant enrolled
May 1, 2020
CompletedFirst Posted
Study publicly available on registry
July 1, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 31, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
March 31, 2026
CompletedMay 5, 2026
May 1, 2026
5.9 years
April 9, 2020
May 2, 2026
Conditions
Outcome Measures
Primary Outcomes (26)
Maternal sensitivity
The mother will be assessed interacting with the infant simulator. Parental sensitivity (a composite of following the child's lead in interactions, providing nurturance when the child is distressed, and showing positive regard) will be assessed using procedures and coding from the assessment used by the NICHD Study of Early Child Care and Youth Development (Brady-Smith et al., 1999). Sensitivity will be assessed on a 5-point scale with higher scores indicating greater sensitivity.
Pre-intervention (3rd trimester)
Maternal sensitivity
The mother will be assessed interacting one-to-one with her infant. Parental sensitivity (a composite of following the child's lead in interactions, providing nurturance when the child is distressed, and showing positive regard) will be assessed using procedures and coding from the assessment used by the NICHD Study of Early Child Care and Youth Development (Brady-Smith et al., 1999). Sensitivity will be assessed on a 5-point scale with higher scores indicating greater sensitivity.
Infant age of 3 months
Maternal sensitivity
The mother will be assessed interacting one-to-one with her infant. Parental sensitivity (a composite of following the child's lead in interactions, providing nurturance when the child is distressed, and showing positive regard) will be assessed using procedures and coding from the assessment used by the NICHD Study of Early Child Care and Youth Development (Brady-Smith et al., 1999). Sensitivity will be assessed on a 5-point scale with higher scores indicating greater sensitivity.
Infant age of 6 months
Maternal sensitivity
The mother will be assessed interacting one-to-one with her infant. Parental sensitivity (a composite of following the child's lead in interactions, providing nurturance when the child is distressed, and showing positive regard) will be assessed using procedures and coding from the assessment used by the NICHD Study of Early Child Care and Youth Development (Brady-Smith et al., 1999). Sensitivity will be assessed on a 5-point scale with higher scores indicating greater sensitivity.
Infant age of 12 months
Maternal methylation of μ-opioid receptor (OPRM1) gene
Maternal methylation will be assessed using direct bisulfite sequencing of DNA extracted from saliva
Pre-intervention (3rd trimester)
Maternal methylation of μ-opioid receptor (OPRM1) gene
Maternal methylation will be assessed using direct bisulfite sequencing of DNA extracted from saliva
Infant age of 12 months
Maternal methylation of oxytocin receptor (OXTR) gene
Maternal methylation will be assessed using direct bisulfite sequencing of DNA extracted from saliva
Pre-intervention (3rd trimester)
Maternal methylation of oxytocin receptor (OXTR) gene
Maternal methylation will be assessed using direct bisulfite sequencing of DNA extracted from saliva
Infant age of 12 months
Infant methylation of μ-opioid receptor (OPRM1) gene
Infant methylation will be assessed using direct bisulfite sequencing of DNA extracted from saliva
Pre-intervention (3rd trimester)
Infant methylation of μ-opioid receptor (OPRM1) gene
Infant methylation will be assessed using direct bisulfite sequencing of DNA extracted from saliva
Infant age of 12 months
Maternal neural activity (Event related potentials - ERP) - Own child-other child task
Maternal event-related potentials (ERP) will be assessed while viewing photos of their own infants, familiar infants, and unfamiliar infants. The P300 (a positive deflection about 300 ms after the stimuli) will be studied, with a bigger difference between own and other child considered preferable.
Pre-intervention (3rd trimester)
Maternal neural activity (Event related potentials - ERP) - Own child-other child task
Maternal event-related potentials will be assessed while viewing photos of their own infants, familiar infants, and unfamiliar infants. The P300 (a positive deflection about 300 ms after the stimuli) will be studied, with a bigger difference between own and other child considered preferable.
Infant age of 12 months
Maternal neural activity (Event related potentials - ERP) - Reward sensitivity task
Maternal event-related potentials will be assessed while viewing images from four categories: opioid-related images, baby pictures, positive images, and neutral images. The P300 (a positive deflection about 300 ms after the stimuli) will be studied, with a bigger difference between child and opioid-related images considered preferable.
Pre-intervention (3rd trimester)
Maternal neural activity (Event related potentials - ERP) - Reward sensitivity task
Maternal event-related potentials will be assessed while viewing images from four categories: opioid-related images, baby pictures, positive images, and neutral images. The P300 (a positive deflection about 300 ms after the stimuli) will be studied, with a bigger difference between child and opioid-related images considered preferable.
Infant age of 12 months
Maternal neural activity (Event related potentials - ERP) - Child emotion task
Maternal event-related potentials will be assessed while viewing images of children crying, laughing, and showing neutral expressions. The N180 (a negative deflection about 180 ms after the stimuli) will be studied, with a bigger difference between faces will be considered preferable.
Pre-intervention (3rd trimester)
Maternal neural activity (Event related potentials - ERP) - Child emotion task
Maternal event-related potentials will be assessed while viewing images of children crying, laughing, and showing neutral expressions. The N180 (a negative deflection about 180 ms after the stimuli) will be studied, with a bigger difference between faces will be considered preferable.
Infant age of 12 months
Maternal parasympathetic nervous system activity during Still Face
The control of cardiac functions via the vagal nerve, or vagal tone, is an index of parasympathetic activity. It can be measured by heart rate variability associated with respiration or high frequency respiratory sinus arrhythmia (RSA). RSA data will be collected continuously throughout a 15-minute period during the Still Face Procedure using a MindWare Portable Lab system. Greater changes in RSA from baseline to still face considered preferable.
Pre-intervention (3rd trimester)
Maternal parasympathetic nervous system activity
The control of cardiac functions via the vagal nerve, or vagal tone, is an index of parasympathetic activity. It can be measured by heart rate variability associated with respiration or high frequency respiratory sinus arrhythmia (RSA). RSA data will be collected continuously throughout a 15-minute period during the Still Face Procedure using a MindWare Portable Lab system. Greater changes in RSA from baseline to still face considered preferable.
Infant age of 12 months
Infant parasympathetic nervous system activity
The control of cardiac functions via the vagal nerve, or vagal tone, is an index of parasympathetic activity. It can be measured by heart rate variability associated with respiration or high frequency respiratory sinus arrhythmia (RSA). RSA data will be collected continuously throughout a 15-minute period during the Still Face Procedure using a MindWare Portable Lab system. Greater changes in RSA from baseline to still face considered preferable.
Infant age of 6 months
Infant parasympathetic nervous system activity
The control of cardiac functions via the vagal nerve, or vagal tone, is an index of parasympathetic activity. It can be measured by heart rate variability associated with respiration or high frequency respiratory sinus arrhythmia (RSA). RSA data will be collected continuously throughout a 15-minute period during the Still Face Procedure using a MindWare Portable Lab system. Greater changes in RSA from baseline to still face considered preferable.
Infant age of 12 months
Infant diurnal cortisol production
Infant diurnal cortisol production will be assessed through salivary cortisol levels collected at waketime and bed-time.
Infant age of 6 months
Infant diurnal cortisol production
Infant diurnal cortisol production will be assessed through salivary cortisol levels collected at waketime and bed-time.
Infant age of 12 months
Infant behavioral regulation
Behavioral coding of emotion regulation will be conducted from video recordings of the Still Face Paradigm on the Behavioral Regulation Scale, a mild social stressor. Behavior regulation will be coded on a scale called Behavior Regulation. The scores will be continuous with higher scores indicating better regulation (ranging from 1-9).
Infant age of 6 months
Infant behavioral regulation
Behavioral coding of emotion regulation will be conducted from video recordings of the Still Face Paradigm on the Behavioral Regulation Scale, a mild social stressor. Behavior regulation will be coded on a scale called Behavior Regulation. The scores will be continuous with higher scores indicating better regulation (ranging from 1-9).
Infant age of 12 months
Infant attachment
Infant attachment will be assessed using the Strange Situation. Coding will be completed using the standard Strange Situation coding scheme (with 4 major categories, with secure preferable).
Infant age of 12 months
Infant cognitive development
Infant cognitive development will be assessed through maternal report on the Ages and Stages Questionnaire. Scores could range from 0-300 with higher scores reflecting higher functioning.
Infant age of 12 months
Secondary Outcomes (6)
Maternal substance use
Pre-intervention (3rd trimester)
Maternal substance use
Infant age of 12 months
Maternal depression
Pre-intervention (3rd trimester)
Maternal depression
Infant age of 12 months
Maternal executive functioning
Pre-intervention (3rd trimester)
- +1 more secondary outcomes
Study Arms (2)
Modified ABC
EXPERIMENTAL12-session home visiting intervention designed to increase parental sensitivity and nurturance and decrease parental frightening behavior.
Modified DEF
ACTIVE COMPARATOR12-session home visiting intervention designed to increase parental playful interactions that stimulate infant cognitive and motor development
Interventions
Eligibility Criteria
You may qualify if:
- Opioid-dependent pregnant women in third trimester of pregnancy on medication-assisted treatment
You may not qualify if:
- None
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Delaware
Newark, Delaware, 19716, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Mary Dozier, Ph.D.
University of Delaware
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
April 9, 2020
First Posted
July 1, 2020
Study Start
May 1, 2020
Primary Completion
March 31, 2026
Study Completion
March 31, 2026
Last Updated
May 5, 2026
Record last verified: 2026-05