Trial Outcomes & Findings for Neurobiological Bases of Paternal Nurturance (NCT NCT02223429)

NCT ID: NCT02223429

Last Updated: 2017-06-05

Results Overview

The effect of the drug will be assessed by determining changes in brain activation to own child pictures versus adult pictures (O-A) between OT treatment and placebo treatments (OT-PL) from functional magnetic resonance imaging (fMRI). Changes will be assessed in the OT group only per protocol.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

35 participants

Primary outcome timeframe

Baseline, Visit 2 (Up to 10 days)

Results posted on

2017-06-05

Participant Flow

Enrollment took place from 9/29/2014 through 2/3/2016.

Of the 35 participants consented for participation, 32 began the study. Three participants were lost to follow up after signing the consent form.

Participant milestones

Participant milestones
Measure
OT First, Followed by Placebo
Participants were randomized to receive no more than 1 ml solution of self-administered oxytocin spray in each nostril followed by no more than 1 ml solution of self-administered placebo spray in each nostril. Time between interventions was 2-10 days.
Placebo First, Followed by OT
Participants were randomized to receive no more than 1 ml solution of self-administered placebo spray in each nostril followed by no more than 1 ml solution of self-administered oxytocin spray in each nostril. Time between interventions was 2-10 days.
AVP First, Followed by Placebo
Participants were randomized to receive no more than 1 ml solution of self-administered vasopressin spray in each nostril followed by no more than 1 ml solution of self-administered placebo spray in each nostril. Time between interventions was 2-10 days.
Placebo First, Followed by AVP
Participants were randomized to receive no more than 1 ml solution of self-administered placebo spray in each nostril followed by no more than 1 ml solution of self-administered vasopressin spray in each nostril. Time between interventions was 2-10 days.
Overall Study
STARTED
8
8
8
8
Overall Study
COMPLETED
7
8
8
8
Overall Study
NOT COMPLETED
1
0
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Neurobiological Bases of Paternal Nurturance

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
OT First, Followed by Placebo
n=7 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered oxytocin spray in each nostril followed by no more than 1 ml solution of self-administered placebo spray in each nostril. Time between interventions was 2-10 days.
Placebo First, Followed by OT
n=8 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered placebo spray in each nostril followed by no more than 1 ml solution of self-administered oxytocin spray in each nostril. Time between interventions was 2-10 days.
AVP First, Followed by Placebo
n=8 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered vasopressin spray in each nostril followed by no more than 1 ml solution of self-administered placebo spray in each nostril. Time between interventions was 2-10 days.
Placebo First, Followed by AVP
n=8 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered placebo spray in each nostril followed by no more than 1 ml solution of self-administered vasopressin spray in each nostril. Time between interventions was 2-10 days.
Total
n=31 Participants
Total of all reporting groups
Age, Continuous
33.14 years
STANDARD_DEVIATION 4.14 • n=5 Participants
31.88 years
STANDARD_DEVIATION 4.61 • n=7 Participants
32.25 years
STANDARD_DEVIATION 5.75 • n=5 Participants
34 years
STANDARD_DEVIATION 4.75 • n=4 Participants
32.81 years
STANDARD_DEVIATION 4.70 • n=21 Participants
Sex: Female, Male
Female
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Sex: Female, Male
Male
7 Participants
n=5 Participants
8 Participants
n=7 Participants
8 Participants
n=5 Participants
8 Participants
n=4 Participants
31 Participants
n=21 Participants
Region of Enrollment
United States
7 participants
n=5 Participants
8 participants
n=7 Participants
8 participants
n=5 Participants
8 participants
n=4 Participants
31 participants
n=21 Participants

PRIMARY outcome

Timeframe: Baseline, Visit 2 (Up to 10 days)

Population: The analysis was completed per protocol for the OT + placebo groups only.

The effect of the drug will be assessed by determining changes in brain activation to own child pictures versus adult pictures (O-A) between OT treatment and placebo treatments (OT-PL) from functional magnetic resonance imaging (fMRI). Changes will be assessed in the OT group only per protocol.

Outcome measures

Outcome measures
Measure
Oxytocin
n=15 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered oxytocin spray in each nostril followed by no more than 1 ml solution of self-administered placebo spray in each nostril. Time between interventions was 2-10 days.
Placebo
n=15 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered placebo spray in each nostril followed by no more than 1 ml solution of self-administered oxytocin spray in each nostril. Time between interventions was 2-10 days.
Mean Percent Signal Change in Ventral Tegmental Area (VTA)
0.54 Percent signal change
Standard Deviation 1.24
0.27 Percent signal change
Standard Deviation 1.34

PRIMARY outcome

Timeframe: Baseline, Visit 2 (Up to 10 days)

Population: The analysis was completed per protocol for the OT + placebo groups only.

The effect of the drug will be assessed by determining changes in brain activation to own child pictures versus adult pictures (O-A) between OT treatment and placebo treatments (OT-PL) from functional magnetic resonance imaging (fMRI). Changes will be assessed in the OT group only per protocol.

Outcome measures

Outcome measures
Measure
Oxytocin
n=15 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered oxytocin spray in each nostril followed by no more than 1 ml solution of self-administered placebo spray in each nostril. Time between interventions was 2-10 days.
Placebo
n=15 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered placebo spray in each nostril followed by no more than 1 ml solution of self-administered oxytocin spray in each nostril. Time between interventions was 2-10 days.
Mean Percent Signal Change in Right Ventral Striatum
-1.28 Percent signal change
Standard Deviation 1.59
-0.81 Percent signal change
Standard Deviation 1.74

PRIMARY outcome

Timeframe: Baseline, Visit 2 (Up to 10 days)

Population: The analysis was completed per protocol for the OT + placebo groups only.

The effect of the drug will be assessed by determining changes in brain activation to own child pictures versus adult pictures (O-A) between OT treatment and placebo treatments (OT-PL) from functional magnetic resonance imaging (fMRI). Changes will be assessed in the OT group only per protocol.

Outcome measures

Outcome measures
Measure
Oxytocin
n=15 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered oxytocin spray in each nostril followed by no more than 1 ml solution of self-administered placebo spray in each nostril. Time between interventions was 2-10 days.
Placebo
n=15 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered placebo spray in each nostril followed by no more than 1 ml solution of self-administered oxytocin spray in each nostril. Time between interventions was 2-10 days.
Mean Percent Signal Change in Right Medial Orbitofrontal Cortex
-0.22 Percent signal change
Standard Deviation 0.64
-0.53 Percent signal change
Standard Deviation 0.96

PRIMARY outcome

Timeframe: Baseline, Visit 2 (Up to 10 days)

Population: The analysis was completed per protocol for the OT + placebo groups only.

The effect of the drug will be assessed by determining changes in brain activation to own child pictures versus adult pictures (O-A) between OT treatment and placebo treatments (OT-PL) from functional magnetic resonance imaging (fMRI).

Outcome measures

Outcome measures
Measure
Oxytocin
n=15 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered oxytocin spray in each nostril followed by no more than 1 ml solution of self-administered placebo spray in each nostril. Time between interventions was 2-10 days.
Placebo
n=15 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered placebo spray in each nostril followed by no more than 1 ml solution of self-administered oxytocin spray in each nostril. Time between interventions was 2-10 days.
Mean Percent Signal Change in Caudate Nucleus
0.85 Percent signal change
Standard Deviation 0.92
-0.27 Percent signal change
Standard Deviation 0.67

PRIMARY outcome

Timeframe: Baseline, Visit 2 (Up to 10 days)

Population: The analysis was completed per protocol for the OT + placebo groups only.

The effect of the drug will be assessed by determining changes in brain activation to own child pictures versus adult pictures (O-A) between OT treatment and placebo treatments (OT-PL) from functional magnetic resonance imaging (fMRI).

Outcome measures

Outcome measures
Measure
Oxytocin
n=15 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered oxytocin spray in each nostril followed by no more than 1 ml solution of self-administered placebo spray in each nostril. Time between interventions was 2-10 days.
Placebo
n=15 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered placebo spray in each nostril followed by no more than 1 ml solution of self-administered oxytocin spray in each nostril. Time between interventions was 2-10 days.
Mean Percent Signal Change in the Visual Cortex
0.83 Percent signal change
Standard Deviation 1.18
0.10 Percent signal change
Standard Deviation 1.34

PRIMARY outcome

Timeframe: Baseline, Visit 2 (Up to 10 days)

Population: Analysis was conducted in the OT+placebo groups only.

The effect of the drug will be assessed by determining changes in brain activation to own child pictures versus adult pictures (O-A) between OT treatment and placebo treatments (OT-PL) from functional magnetic resonance imaging (fMRI).

Outcome measures

Outcome measures
Measure
Oxytocin
n=15 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered oxytocin spray in each nostril followed by no more than 1 ml solution of self-administered placebo spray in each nostril. Time between interventions was 2-10 days.
Placebo
n=15 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered placebo spray in each nostril followed by no more than 1 ml solution of self-administered oxytocin spray in each nostril. Time between interventions was 2-10 days.
Mean Percent Signal Change in the Anterior Cingulate Cortex
0.27 Percent signal change
Standard Deviation 0.60
-0.39 Percent signal change
Standard Deviation 0.63

SECONDARY outcome

Timeframe: Baseline, Visit 2 (Up to 10 days)

Population: Zero participants were analyzed as AVP samples were not assayed.

Peripheral levels of AVP will be assessed via assay of plasma collected.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Baseline, Visit 2 (Up to 10 days)

Population: Zero participants were analyzed as samples were not assayed.

Peripheral levels of OT will be assessed via assay of plasma collected.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Baseline, Visit 2 (Up to 10 days)

Population: Of the 15 participants who were administered oxytocin in combination with placebo at any time point during the study, data were analyzed for 14 participants. One participant was excluded from the analysis due to missing data.

The effect of the drug will be assessed by analyzing the differences between ratings of infant cries under OT and placebo treatment on a 7-point likert scale. Sixteen adjectives will be used to describe two different cries. Participants will rate each cry from 1-7 where one represents "not at all" and 7 represents "extremely". Difference is defined as OT minus placebo scores.

Outcome measures

Outcome measures
Measure
Oxytocin
n=14 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered oxytocin spray in each nostril followed by no more than 1 ml solution of self-administered placebo spray in each nostril. Time between interventions was 2-10 days.
Placebo
n=14 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered placebo spray in each nostril followed by no more than 1 ml solution of self-administered oxytocin spray in each nostril. Time between interventions was 2-10 days.
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Grating
3.71 units on a scale
Standard Deviation 1.90
4.64 units on a scale
Standard Deviation 1.60
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Urgent
4.29 units on a scale
Standard Deviation 1.94
4.86 units on a scale
Standard Deviation 1.66
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Piercing
4.29 units on a scale
Standard Deviation 1.86
4.36 units on a scale
Standard Deviation 1.78
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Aversive
3.57 units on a scale
Standard Deviation 1.74
3.36 units on a scale
Standard Deviation 1.45
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Compelling
4.57 units on a scale
Standard Deviation 1.79
5.00 units on a scale
Standard Deviation 1.92
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Manipulative
2.86 units on a scale
Standard Deviation 1.92
2.29 units on a scale
Standard Deviation 1.38
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Spoiled
2.14 units on a scale
Standard Deviation 1.10
2.07 units on a scale
Standard Deviation .92
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Irritated
3.07 units on a scale
Standard Deviation 1.86
3.29 units on a scale
Standard Deviation 1.98
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Sympathetic
4.71 units on a scale
Standard Deviation 1.50
4.43 units on a scale
Standard Deviation 1.65
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Alarmed
4.21 units on a scale
Standard Deviation 2.00
4.07 units on a scale
Standard Deviation 2.20
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Angry
2.43 units on a scale
Standard Deviation 1.83
2.57 units on a scale
Standard Deviation 1.79
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Upset
3.07 units on a scale
Standard Deviation 1.90
3.29 units on a scale
Standard Deviation 2.30
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Compassionate
4.86 units on a scale
Standard Deviation 2.07
5.14 units on a scale
Standard Deviation 1.56
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Distressed
3.57 units on a scale
Standard Deviation 2.24
3.64 units on a scale
Standard Deviation 1.91
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Annoyed
2.43 units on a scale
Standard Deviation 1.65
2.43 units on a scale
Standard Deviation 1.51
Difference in Cry Rating Scores Between OT and Placebo
Cry 1 Tender
3.79 units on a scale
Standard Deviation 1.63
3.64 units on a scale
Standard Deviation 1.82
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Grating
3.43 units on a scale
Standard Deviation 2.17
3.79 units on a scale
Standard Deviation 1.93
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Urgent
4.93 units on a scale
Standard Deviation 1.54
4.43 units on a scale
Standard Deviation 2.07
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Piercing
3.71 units on a scale
Standard Deviation 2.23
4.00 units on a scale
Standard Deviation 2.32
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Aversive
3.50 units on a scale
Standard Deviation 1.83
4.07 units on a scale
Standard Deviation 1.39
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Compelling
5.21 units on a scale
Standard Deviation 1.37
5.14 units on a scale
Standard Deviation 1.56
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Manipulative
2.43 units on a scale
Standard Deviation 2.03
2.36 units on a scale
Standard Deviation 1.74
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Spoiled
2.00 units on a scale
Standard Deviation 1.41
2.00 units on a scale
Standard Deviation 1.36
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Irritated
2.21 units on a scale
Standard Deviation 1.53
2.36 units on a scale
Standard Deviation 1.69
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Sypmathetic
5.86 units on a scale
Standard Deviation 1.17
5.64 units on a scale
Standard Deviation 1.45
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Alarmed
4.36 units on a scale
Standard Deviation 2.34
4.57 units on a scale
Standard Deviation 2.17
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Angry
1.79 units on a scale
Standard Deviation 1.05
1.79 units on a scale
Standard Deviation .98
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Upset
2.86 units on a scale
Standard Deviation 1.56
2.57 units on a scale
Standard Deviation 1.40
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Compassionate
5.71 units on a scale
Standard Deviation 1.49
5.43 units on a scale
Standard Deviation 1.70
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Distressed
3.36 units on a scale
Standard Deviation 2.17
3.86 units on a scale
Standard Deviation 2.21
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Annoyed
2.00 units on a scale
Standard Deviation 1.30
1.93 units on a scale
Standard Deviation 1.44
Difference in Cry Rating Scores Between OT and Placebo
Cry 2 Tender
4.50 units on a scale
Standard Deviation 1.22
4.79 units on a scale
Standard Deviation 1.48

SECONDARY outcome

Timeframe: Baseline, Visit 2 (Up to 10 days)

Population: Analysis was completed according to protocol for all participants who were administered AVP in combination with placebo at any time point during the study.

The effect of the drug will be assessed by analyzing the differences between ratings of infant cries under AVP and placebo treatment on a 7-point likert scale. Sixteen adjectives will be used to describe two different cries. Participants will rate each cry from 1-7 where one represents "not at all" and 7 represents "extremely". Difference is defined as AVP minus placebo scores.

Outcome measures

Outcome measures
Measure
Oxytocin
n=16 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered oxytocin spray in each nostril followed by no more than 1 ml solution of self-administered placebo spray in each nostril. Time between interventions was 2-10 days.
Placebo
n=16 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered placebo spray in each nostril followed by no more than 1 ml solution of self-administered oxytocin spray in each nostril. Time between interventions was 2-10 days.
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Compelling
4.56 units on a scale
Standard Deviation 1.32
5.00 units on a scale
Standard Deviation 1.21
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Manipulative
3.06 units on a scale
Standard Deviation 1.48
2.69 units on a scale
Standard Deviation 1.49
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Spoiled
2.44 units on a scale
Standard Deviation 1.03
1.94 units on a scale
Standard Deviation 1.06
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Irritated
3.44 units on a scale
Standard Deviation 1.82
3.44 units on a scale
Standard Deviation 1.86
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Sympathetic
5.06 units on a scale
Standard Deviation 1.81
4.38 units on a scale
Standard Deviation 2.09
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Alarmed
4.88 units on a scale
Standard Deviation 1.46
4.38 units on a scale
Standard Deviation 1.41
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Angry
1.94 units on a scale
Standard Deviation 1.44
1.81 units on a scale
Standard Deviation 1.22
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Upset
3.00 units on a scale
Standard Deviation 1.55
2.63 units on a scale
Standard Deviation 1.20
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Grating
3.25 units on a scale
Standard Deviation 1.69
3.38 units on a scale
Standard Deviation 1.78
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Urgent
5.13 units on a scale
Standard Deviation 1.26
5.25 units on a scale
Standard Deviation 0.78
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Compassionate
4.88 units on a scale
Standard Deviation 1.71
4.94 units on a scale
Standard Deviation 1.65
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Distressed
3.31 units on a scale
Standard Deviation 1.35
3.31 units on a scale
Standard Deviation 1.58
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Annoyed
2.50 units on a scale
Standard Deviation 1.67
2.25 units on a scale
Standard Deviation 1.48
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Tender
4.00 units on a scale
Standard Deviation 1.51
4.19 units on a scale
Standard Deviation 1.56
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Grating
4.69 units on a scale
Standard Deviation 1.45
4.06 units on a scale
Standard Deviation 1.611
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Urgent
5.44 units on a scale
Standard Deviation 1.09
5.31 units on a scale
Standard Deviation 1.01
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Piercing
4.81 units on a scale
Standard Deviation 1.47
4.19 units on a scale
Standard Deviation 1.33
Difference in Cry Rating Scores Between AVP and Placebo
Cry 1 Aversive
3.94 units on a scale
Standard Deviation 1.48
3.81 units on a scale
Standard Deviation 1.38
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Piercing
3.13 units on a scale
Standard Deviation 1.10
3.56 units on a scale
Standard Deviation 1.50
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Aversive
3.44 units on a scale
Standard Deviation 1.55
3.44 units on a scale
Standard Deviation 1.09
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Compelling
4.50 units on a scale
Standard Deviation 1.63
5.00 units on a scale
Standard Deviation 0.97
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Manipulative
2.63 units on a scale
Standard Deviation 2.06
2.38 units on a scale
Standard Deviation 1.46
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Spoiled
2.19 units on a scale
Standard Deviation 1.33
2.31 units on a scale
Standard Deviation 1.40
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Irritated
2.13 units on a scale
Standard Deviation 1.50
2.63 units on a scale
Standard Deviation 1.46
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Sypmathetic
4.88 units on a scale
Standard Deviation 1.75
4.94 units on a scale
Standard Deviation 1.69
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Alarmed
4.31 units on a scale
Standard Deviation 1.74
4.25 units on a scale
Standard Deviation 1.69
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Angry
2.13 units on a scale
Standard Deviation 1.63
2.00 units on a scale
Standard Deviation 1.16
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Upset
3.19 units on a scale
Standard Deviation 1.91
2.88 units on a scale
Standard Deviation 1.59
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Compassionate
4.88 units on a scale
Standard Deviation 1.75
4.75 units on a scale
Standard Deviation 1.84
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Distressed
3.06 units on a scale
Standard Deviation 1.77
3.06 units on a scale
Standard Deviation 1.53
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Annoyed
2.19 units on a scale
Standard Deviation 1.68
1.88 units on a scale
Standard Deviation 1.26
Difference in Cry Rating Scores Between AVP and Placebo
Cry 2 Tender
4.44 units on a scale
Standard Deviation 1.10
4.50 units on a scale
Standard Deviation 1.71

SECONDARY outcome

Timeframe: Baseline, Visit 2 (Up to 10 days)

Population: The analysis was completed per protocol for the OT + placebo group only.

The effect of the drug will be assessed by determining changes in brain activation to own child pictures versus adult pictures (O-A) between OT treatment and placebo treatments (OT-PL) from functional magnetic resonance imaging (fMRI). Changes will be assessed in the OT group only per protocol.

Outcome measures

Outcome measures
Measure
Oxytocin
n=15 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered oxytocin spray in each nostril followed by no more than 1 ml solution of self-administered placebo spray in each nostril. Time between interventions was 2-10 days.
Placebo
n=15 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered placebo spray in each nostril followed by no more than 1 ml solution of self-administered oxytocin spray in each nostril. Time between interventions was 2-10 days.
Mean Percent Signal Change in Primary Auditory Cortex
0.10 Percent signal change
Standard Deviation 0.15
0.10 Percent signal change
Standard Deviation 0.24

SECONDARY outcome

Timeframe: Baseline, Visit 2 (Up to 10 days)

Population: The analysis was conducted in the AVP groups only per protocol. One person from each order of administration were excluded from the analysis due to motion issues in their imaging data.

The effect of the drug will be assessed by determining changes in brain activation to own child pictures versus adult pictures (O-A) between AVP treatment and placebo treatments (AVP-PL) from functional magnetic resonance imaging (fMRI). Changes will be assessed in the AVP group only per protocol.

Outcome measures

Outcome measures
Measure
Oxytocin
n=14 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered oxytocin spray in each nostril followed by no more than 1 ml solution of self-administered placebo spray in each nostril. Time between interventions was 2-10 days.
Placebo
n=14 Participants
Participants were randomized to receive no more than 1 ml solution of self-administered placebo spray in each nostril followed by no more than 1 ml solution of self-administered oxytocin spray in each nostril. Time between interventions was 2-10 days.
Mean Percent Signal Change in Right Lateral Septum
0.19 Percent signal change
Standard Deviation 0.43
0.36 Percent signal change
Standard Deviation 0.56

Adverse Events

OT Treatment

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

AVP Treatment

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Placebo of OT

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Placebo of AVP

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
OT Treatment
n=16 participants at risk
The OT group self-administered no more than 1 ml solution of oxytocin in each nostril; five (5) sprays per each nostril, for a total of ten (10) sprays. This group also went through the Placebo of OT treatment.
AVP Treatment
n=16 participants at risk
The AVP group self-administered no more than 1 ml solution of vasopressin in each nostril; five (5) sprays per each nostril, for a total of ten (10) sprays. This group also went through the Placebo of AVP treatment.
Placebo of OT
n=16 participants at risk
The placebo of OT group self-administered no more than 1 ml solution of placebo of OT in each nostril; five (5) sprays per each nostril, for a total of ten (10) sprays. This group also went through the OT treatment.
Placebo of AVP
n=16 participants at risk
The placebo of AVP group self-administered no more than 1 ml solution of placebo of AVP in each nostril; five (5) sprays per each nostril, for a total of ten (10) sprays. This group also went through the AVP treatment.
Psychiatric disorders
Claustrophobia
6.2%
1/16 • Number of events 1 • Adverse events were collected throughout the duration of the study (2 years).
0.00%
0/16 • Adverse events were collected throughout the duration of the study (2 years).
0.00%
0/16 • Adverse events were collected throughout the duration of the study (2 years).
0.00%
0/16 • Adverse events were collected throughout the duration of the study (2 years).
Vascular disorders
High Blood Pressure prior to Drug Administration
6.2%
1/16 • Number of events 1 • Adverse events were collected throughout the duration of the study (2 years).
0.00%
0/16 • Adverse events were collected throughout the duration of the study (2 years).
12.5%
2/16 • Number of events 2 • Adverse events were collected throughout the duration of the study (2 years).
0.00%
0/16 • Adverse events were collected throughout the duration of the study (2 years).
Nervous system disorders
Headache prior to Drug Administration
0.00%
0/16 • Adverse events were collected throughout the duration of the study (2 years).
6.2%
1/16 • Number of events 1 • Adverse events were collected throughout the duration of the study (2 years).
0.00%
0/16 • Adverse events were collected throughout the duration of the study (2 years).
0.00%
0/16 • Adverse events were collected throughout the duration of the study (2 years).
Product Issues
Nasal Spray Strength Intolerance
0.00%
0/16 • Adverse events were collected throughout the duration of the study (2 years).
12.5%
2/16 • Number of events 2 • Adverse events were collected throughout the duration of the study (2 years).
0.00%
0/16 • Adverse events were collected throughout the duration of the study (2 years).
0.00%
0/16 • Adverse events were collected throughout the duration of the study (2 years).

Additional Information

Dr. James Rilling

Emory University

Phone: 404-727-3062

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place