Posttraumatic Stress Disorder (PTSD) Clinical Trial
Official title:
Posttraumatic Stress Disorder and Affective Functioning: A Test of the Potentially Normalizing Effects of Oxytocin
NCT number | NCT02546570 |
Other study ID # | 1502015347 |
Secondary ID | |
Status | Completed |
Phase | Phase 2 |
First received | |
Last updated | |
Start date | August 2015 |
Est. completion date | August 2016 |
Verified date | March 2020 |
Source | Yale University |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
The investigators will use multiple methods (including Oxytocin intranasal inhalation, neuroimaging, behavioral measures, peripheral hormone measurements) to examine how individuals' behavior, cognition, and brain function is impacted by the neuro-hormone Oxytocin. Specifically, the investigators plan to evaluate the influence of Oxytocin administration on affective processing in non-trauma exposed and trauma-exposed adults (both with and without posttraumatic stress disorder, PTSD).
Status | Completed |
Enrollment | 11 |
Est. completion date | August 2016 |
Est. primary completion date | August 2016 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years to 55 Years |
Eligibility |
Inclusion Criteria: - Adults: age 18-55 - Be in good medical health - Be cooperative with testing - English is a language spoken in the family - PTSD as diagnosed by a certified clinician or the research team for PTSD group. Exclusion Criteria: - Moderate or severe acute or chronic medical illnesses (e.g.cardiac disease, diabetes, epilepsy, influenza). - History of hypertension with baseline blood pressure above 160 mm Hg (systolic) over 100 mm Hg (diastolic). - history of syncope and/or baseline blood pressure below 100 mm Hg (systolic). - weight >300lb - The use of some psychotropic medications will not be allowed. Females taking contraceptive hormones will not be able to participate in the study. - Currently breast feeding or pregnant - For MRI ONLY: Any metal or electromagnetic implants - For MRI ONLY: Significant hearing loss or other severe sensory impairment - A fragile health status. - For MRI ONLY: A history of seizures or current use of anticonvulsants - Healthy adult controls (HC): - Be free of both neurological and psychiatric disorders (current and past) on the basis of self-report - Be free of psychiatric disorders |
Country | Name | City | State |
---|---|---|---|
United States | Yale University | New Haven | Connecticut |
Lead Sponsor | Collaborator |
---|---|
Yale University | National Center for PTSD |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | fMRI Analysis: Change in Anterior Insula Region | Change in blood-oxygen-level dependent (BOLD) contrast signal in regions of interest relevant to fear/threat (e.g., decrease in amygdala activation) and reward processing (increase in ventral striatum activation) in oxytocin versus placebo sessions. Forearm brush stroking targets C-tactile (CT) nerves, which respond to gentle touch and engage the insula and cortical brain regions that mediate social-emotional processing. Palm brush stroking is the control condition, in that CT afferents do not innervate the palm. We contrasted BOLD responses to gentle continuous brushing of the arm vs. palm (4 blocks of 8 trials each), expecting greater oxytocin-related increases in brain reactivity within the insula and other regions in the forearm condition versus the palm condition. The values are % signal change from baseline. |
1 week; fMRI data collected at second and third visits, one week apart | |
Primary | fMRI Analysis: Change in Accumbens Region | Change in blood-oxygen-level dependent (BOLD) contrast signal in regions of interest relevant to fear/threat (e.g., decrease in amygdala activation) and reward processing (increase in ventral striatum activation) in oxytocin versus placebo sessions. Forearm brush stroking targets C-tactile (CT) nerves, which respond to gentle touch and engage the insula and cortical brain regions that mediate social-emotional processing. Palm brush stroking is the control condition, in that CT afferents do not innervate the palm. We contrasted BOLD responses to gentle continuous brushing of the arm vs. palm (4 blocks of 8 trials each), expecting greater oxytocin-related increases in brain reactivity within the insula and other regions in the forearm condition versus the palm condition. The values are % signal change from baseline. |
1 week; fMRI data collected at second and third visits, one week apart | |
Primary | fMRI Analysis: Change in Amygdala Region | Change in blood-oxygen-level dependent (BOLD) contrast signal in regions of interest relevant to fear/threat (e.g., decrease in amygdala activation) and reward processing (increase in ventral striatum activation) in oxytocin versus placebo sessions. Forearm brush stroking targets C-tactile (CT) nerves, which respond to gentle touch and engage the insula and cortical brain regions that mediate social-emotional processing. Palm brush stroking is the control condition, in that CT afferents do not innervate the palm. We contrasted BOLD responses to gentle continuous brushing of the arm vs. palm (4 blocks of 8 trials each), expecting greater oxytocin-related increases in brain reactivity within the insula and other regions in the forearm condition versus the palm condition. The values are % signal change from baseline. |
1 week; fMRI data collected at second and third visits, one week apart | |
Primary | fMRI Analysis: Change in dACC Region | Change in blood-oxygen-level dependent (BOLD) contrast signal in regions of interest relevant to fear/threat (e.g., decrease in amygdala activation) and reward processing (increase in ventral striatum activation) in oxytocin versus placebo sessions. Forearm brush stroking targets C-tactile (CT) nerves, which respond to gentle touch and engage the insula and cortical brain regions that mediate social-emotional processing. Palm brush stroking is the control condition, in that CT afferents do not innervate the palm. We contrasted BOLD responses to gentle continuous brushing of the arm vs. palm (4 blocks of 8 trials each), expecting greater oxytocin-related increases in brain reactivity within the insula and other regions in the forearm condition versus the palm condition. The values are % signal change from baseline. |
1 week; fMRI data collected at second and third visits, one week apart | |
Primary | fMRI Analysis: Change in mOFC Region | Change in blood-oxygen-level dependent (BOLD) contrast signal in regions of interest relevant to fear/threat (e.g., decrease in amygdala activation) and reward processing (increase in ventral striatum activation) in oxytocin versus placebo sessions. Forearm brush stroking targets C-tactile (CT) nerves, which respond to gentle touch and engage the insula and cortical brain regions that mediate social-emotional processing. Palm brush stroking is the control condition, in that CT afferents do not innervate the palm. We contrasted BOLD responses to gentle continuous brushing of the arm vs. palm (4 blocks of 8 trials each), expecting greater oxytocin-related increases in brain reactivity within the insula and other regions in the forearm condition versus the palm condition. The values are % signal change from baseline. |
1 week; fMRI data collected at second and third visits, one week apart | |
Primary | fMRI Analysis: Change in rACC Region | Change in blood-oxygen-level dependent (BOLD) contrast signal in regions of interest relevant to fear/threat (e.g., decrease in amygdala activation) and reward processing (increase in ventral striatum activation) in oxytocin versus placebo sessions. Forearm brush stroking targets C-tactile (CT) nerves, which respond to gentle touch and engage the insula and cortical brain regions that mediate social-emotional processing. Palm brush stroking is the control condition, in that CT afferents do not innervate the palm. We contrasted BOLD responses to gentle continuous brushing of the arm vs. palm (4 blocks of 8 trials each), expecting greater oxytocin-related increases in brain reactivity within the insula and other regions in the forearm condition versus the palm condition. The values are % signal change from baseline. |
1 week; fMRI data collected at second and third visits, one week apart | |
Primary | fMRI Analysis: Change in vmPFC Region | Change in blood-oxygen-level dependent (BOLD) contrast signal in regions of interest relevant to fear/threat (e.g., decrease in amygdala activation) and reward processing (increase in ventral striatum activation) in oxytocin versus placebo sessions. Forearm brush stroking targets C-tactile (CT) nerves, which respond to gentle touch and engage the insula and cortical brain regions that mediate social-emotional processing. Palm brush stroking is the control condition, in that CT afferents do not innervate the palm. We contrasted BOLD responses to gentle continuous brushing of the arm vs. palm (4 blocks of 8 trials each), expecting greater oxytocin-related increases in brain reactivity within the insula and other regions in the forearm condition versus the palm condition. The values are % signal change from baseline. |
1 week; fMRI data collected at second and third visits, one week apart | |
Secondary | Salivary Oxytocin | Expect within-session (30 min) increase in peripheral salivary oxytocin level during OT sessions (within-session), and higher OT levels in oxytocin administration vs. placebo sessions. Peripheral OT levels measured with Salivettes (sterile cotton participants will be asked to chew on for 1 minutes). | Within session (30 min) and between sessions (1 week); saliva samples collected twice (before and after OT administration) at both second and third visits, one week apart |
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