NCT04454645

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

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
174

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started May 2020

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Completed
22 days until next milestone

Study Start

First participant enrolled

May 1, 2020

Completed
2 months until next milestone

First Posted

Study publicly available on registry

July 1, 2020

Completed
5.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2026

Completed
Last Updated

May 5, 2026

Status Verified

May 1, 2026

Enrollment Period

5.9 years

First QC Date

April 9, 2020

Last Update Submit

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

EXPERIMENTAL

12-session home visiting intervention designed to increase parental sensitivity and nurturance and decrease parental frightening behavior.

Behavioral: mABC

Modified DEF

ACTIVE COMPARATOR

12-session home visiting intervention designed to increase parental playful interactions that stimulate infant cognitive and motor development

Behavioral: mDEF

Interventions

mABCBEHAVIORAL

Intervention targets parenting sensitivity and nurturance.

Modified ABC
mDEFBEHAVIORAL

Intervention targets parenting enhancing infant cognitive development

Modified DEF

Eligibility Criteria

Age18 Years - 70 Years
Sexfemale(Gender-based eligibility)
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

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

Location

MeSH Terms

Conditions

Opioid-Related Disorders

Condition Hierarchy (Ancestors)

Narcotic-Related DisordersSubstance-Related DisordersChemically-Induced DisordersMental Disorders

Study Officials

  • Mary Dozier, Ph.D.

    University of Delaware

    PRINCIPAL INVESTIGATOR

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

Locations