Trial Outcomes & Findings for Imaging the Neuroimmune System in PTSD (NCT NCT04236986)

NCT ID: NCT04236986

Last Updated: 2024-12-09

Results Overview

Time-activity curves will be extracted from brain regions of interest and analyzed using multilinear analysis-1 (t\*=30) incorporating the metabolite-corrected arterial input function to yield \[11C\]PBR28 total volumes of distribution (VT) across brain regions.

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

34 participants

Primary outcome timeframe

Before LPS administration (baseline)

Results posted on

2024-12-09

Participant Flow

Participant milestones

Participant milestones
Measure
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
Overall Study
STARTED
18
16
Overall Study
COMPLETED
15
15
Overall Study
NOT COMPLETED
3
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
Overall Study
Withdrawal by Subject
3
1

Baseline Characteristics

3 subjects withdrew from HC population and 1 subject from PTSD population withdrew, prior to second PET scan and LPS injection.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
n=18 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
n=16 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
Total
n=34 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=18 Participants
0 Participants
n=16 Participants
0 Participants
n=34 Participants
Age, Categorical
Between 18 and 65 years
18 Participants
n=18 Participants
16 Participants
n=16 Participants
34 Participants
n=34 Participants
Age, Categorical
>=65 years
0 Participants
n=18 Participants
0 Participants
n=16 Participants
0 Participants
n=34 Participants
Sex: Female, Male
Female
4 Participants
n=15 Participants • 3 subjects withdrew from HC population and 1 subject from PTSD population withdrew, prior to second PET scan and LPS injection.
6 Participants
n=15 Participants • 3 subjects withdrew from HC population and 1 subject from PTSD population withdrew, prior to second PET scan and LPS injection.
10 Participants
n=30 Participants • 3 subjects withdrew from HC population and 1 subject from PTSD population withdrew, prior to second PET scan and LPS injection.
Sex: Female, Male
Male
11 Participants
n=15 Participants • 3 subjects withdrew from HC population and 1 subject from PTSD population withdrew, prior to second PET scan and LPS injection.
9 Participants
n=15 Participants • 3 subjects withdrew from HC population and 1 subject from PTSD population withdrew, prior to second PET scan and LPS injection.
20 Participants
n=30 Participants • 3 subjects withdrew from HC population and 1 subject from PTSD population withdrew, prior to second PET scan and LPS injection.
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=15 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
0 Participants
n=15 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
0 Participants
n=30 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
Race (NIH/OMB)
Asian
0 Participants
n=15 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
1 Participants
n=15 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
1 Participants
n=30 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=15 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
0 Participants
n=15 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
0 Participants
n=30 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
Race (NIH/OMB)
Black or African American
3 Participants
n=15 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
5 Participants
n=15 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
8 Participants
n=30 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
Race (NIH/OMB)
White
7 Participants
n=15 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
7 Participants
n=15 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
14 Participants
n=30 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
Race (NIH/OMB)
More than one race
0 Participants
n=15 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
0 Participants
n=15 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
0 Participants
n=30 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
Race (NIH/OMB)
Unknown or Not Reported
5 Participants
n=15 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
2 Participants
n=15 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
7 Participants
n=30 Participants • 3 healthy controls and 1 PTSD participant declined to continue/withdrew from study prior to second PET scan/LPS
Region of Enrollment
United States
18 participants
n=18 Participants
16 participants
n=16 Participants
34 participants
n=34 Participants

PRIMARY outcome

Timeframe: Before LPS administration (baseline)

Time-activity curves will be extracted from brain regions of interest and analyzed using multilinear analysis-1 (t\*=30) incorporating the metabolite-corrected arterial input function to yield \[11C\]PBR28 total volumes of distribution (VT) across brain regions.

Outcome measures

Outcome measures
Measure
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
n=15 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
n=15 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
Baseline TSPO Availability
Amygdala
5.11 mL/cm3
Standard Deviation .85
4.75 mL/cm3
Standard Deviation 1.35
Baseline TSPO Availability
insula
5.07 mL/cm3
Standard Deviation .85
4.38 mL/cm3
Standard Deviation 1.1
Baseline TSPO Availability
vmPFC
5.33 mL/cm3
Standard Deviation .9
5.33 mL/cm3
Standard Deviation 1.16
Baseline TSPO Availability
hippocampus
4.89 mL/cm3
Standard Deviation .78
4.38 mL/cm3
Standard Deviation 1.1

PRIMARY outcome

Timeframe: 3-hours after LPS administration (1.0 ng/kg; IV)

Time-activity curves will be extracted from brain regions of interest and analyzed using multilinear analysis-1 (t\*=30) incorporating the metabolite-corrected arterial input function to yield \[11C\]PBR28 total volumes of distribution (VT) across brain regions.

Outcome measures

Outcome measures
Measure
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
n=15 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
n=15 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
Post-LPS TSPO Availability
Insula
7.14 mL/cm3
Standard Deviation 1.3
7.14 mL/cm3
Standard Deviation 2.1
Post-LPS TSPO Availability
vmPFC
7.73 mL/cm3
Standard Deviation 1.6
7.73 mL/cm3
Standard Deviation 1.8
Post-LPS TSPO Availability
Amygdala
7.2 mL/cm3
Standard Deviation 1.37
6.07 mL/cm3
Standard Deviation 2.12
Post-LPS TSPO Availability
Hippocampus
6.82 mL/cm3
Standard Deviation .87
5.66 mL/cm3
Standard Deviation 1.8

SECONDARY outcome

Timeframe: Before LPS administration

Visual attention: response latency to identify card color (log10(ms); higher \~ worse attention).

Outcome measures

Outcome measures
Measure
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
n=9 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
n=13 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
Baseline Visual Attention
2.624842444 log10(ms)
Interval 2.457448 to 2.951719
6.877150091 log10(ms)
Interval 2.312753 to 50.0

SECONDARY outcome

Timeframe: Approximately ~1-hour after LPS administration

Visual attention: response latency to identify card color (log10(ms); higher \~ worse attention).

Outcome measures

Outcome measures
Measure
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
n=9 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
n=13 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
Post-LPS Visual Attention
2.54493925 log10(ms)
Interval 2.3893 to 2.713619
2.6069589 log10(ms)
Interval 2.333067 to 2.764084

SECONDARY outcome

Timeframe: Before LPS administration

Visual learning: % of correctly identified repeat cards (arcsine(% correct); higher values \~ better learning).

Outcome measures

Outcome measures
Measure
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
n=9 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
n=13 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
Baseline Visual Learning
0.926197556 percentage of correct responses
Interval 0.0 to 1.306618
1.005693 percentage of correct responses
Interval 0.63029 to 1.336154

SECONDARY outcome

Timeframe: Approximately ~1-hour after LPS administration

Visual learning: % of correctly identified repeat cards (arcsine(% correct); higher values \~ better learning).

Outcome measures

Outcome measures
Measure
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
n=9 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
n=13 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
Post-LPS Visual Learning
0.98078875 percentage of correct responses
Interval 0.82031 to 1.115727
0.9055107 percentage of correct responses
Interval 0.61548 to 1.209429

SECONDARY outcome

Timeframe: Before LPS administration

Verbal memory: summed number of correctly recalled items from a grocery list (over 3 trials). Each trial is not calculated individually. The reported value is the sum of all three trials.

Outcome measures

Outcome measures
Measure
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
n=9 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
n=13 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
Baseline Verbal Memory
29.11111111 Number of correct responses
Interval 22.0 to 35.0
27.45454545 Number of correct responses
Interval 9.0 to 41.0

SECONDARY outcome

Timeframe: Approximately ~1-hour after LPS administration

Verbal memory: summed # of correctly recalled items from a grocery list (over 3 trials). Each trial is not calculated individually. The reported value is the sum of all three trials.

Outcome measures

Outcome measures
Measure
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
n=9 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
n=13 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
Post-LPS Verbal Memory
26.75 Number of correct responses
Interval 18.0 to 31.0
25.7 Number of correct responses
Interval 18.0 to 33.0

SECONDARY outcome

Timeframe: Before LPS administration

Executive function: summed number of errors navigating a 'hidden' maze (5 trials; higher \~ worse executive function).

Outcome measures

Outcome measures
Measure
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
n=9 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
n=13 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
Baseline Executive Function
51.11111111 Number of errors
Interval 28.0 to 74.0
45.36363636 Number of errors
Interval 0.0 to 103.0

SECONDARY outcome

Timeframe: Approximately ~1-hour after LPS administration

Executive function: summed number of errors navigating a 'hidden' maze (5 trials; higher \~ worse executive function).

Outcome measures

Outcome measures
Measure
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
n=9 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
n=13 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
Post-LPS Executive Function
57.5 Number of errors
Interval 25.0 to 99.0
60.4 Number of errors
Interval 34.0 to 111.0

SECONDARY outcome

Timeframe: Before LPS administration

Visual-motor processing speed: response latency to detect a card flipped over (log10(ms); higher \~ worse processing speed).

Outcome measures

Outcome measures
Measure
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
n=9 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
n=13 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
Baseline Visual-Motor Processing Speed
2.415812111 log10(ms)
Interval 0.0 to 2.878009
5.285026273 log10(ms)
Interval 2.54562 to 31.0

SECONDARY outcome

Timeframe: Approximately ~1-hour after LPS administration

Visual-motor processing speed: response latency to detect a card flipped over (log10(ms); higher \~ worse processing speed).

Outcome measures

Outcome measures
Measure
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
n=9 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
n=13 Participants
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
Post-LPS Visual-Motor Processing Speed
2.74042025 log10(ms)
Interval 2.562187 to 2.859766
2.7598859 log10(ms)
Interval 2.54562 to 2.97832

SECONDARY outcome

Timeframe: Before LPS administration

Population: Data were not collected.

Social cognition: response latency to identify the mismatched facial expression based on its emotional content (ms; log10; higher \~ worse social cognition).

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Approximately ~1-hour after LPS administration

Population: Data were not collected.

Social cognition: response latency to identify the mismatched facial expression based on its emotional content (ms; log10; higher \~ worse social cognition).

Outcome measures

Outcome data not reported

Adverse Events

Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

PTSD Controls for HIC 2000020347

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
Healthy Controls AKA Trauma Exposed Individuals Without PTSD For HIC 2000020347
n=18 participants at risk
We will recruit men and women aged 18-55 who have been exposed to trauma without PTSD into the study. Men and women, aged 18-55 years, any race, with a history of trauma exposure. Trauma-exposed controls will have a CAPS-5 score of 0-22 (no/minimal to mild/subthreshold symptoms) Able to read and write English and to provide voluntary, written informed consent
PTSD Controls for HIC 2000020347
n=16 participants at risk
We will recruit men and women aged 18-55 who have been exposed to trauma with PTSD into the study. Men and women, aged 18-55 years, any race, with a history of PTSD, Subjects with posttraumatic stress disorder (PTSD) will have a primary, current diagnosis of PTSD according to DSM-V criteria (i.e., CAPS-5 ascertained diagnosis) Able to read and write English and to provide voluntary, written informed consent
General disorders
Dull ache Loose Bowels
5.6%
1/18 • Number of events 1 • Subjects will be followed for 1 month after LPS injection and second PET scan.
this study will be monitored every 6 months by a Data Safety Monitoring Board (DSMB). Adequate surveillance and protections will be put in place to discover adverse events promptly and keep their effects to a minimum. There is an established DSMB at the Yale PET Center that meets every 6 months. Expected and Unexpected Adverse Events will be recorded according to PET Center and NIH guidelines
0.00%
0/16 • Subjects will be followed for 1 month after LPS injection and second PET scan.
this study will be monitored every 6 months by a Data Safety Monitoring Board (DSMB). Adequate surveillance and protections will be put in place to discover adverse events promptly and keep their effects to a minimum. There is an established DSMB at the Yale PET Center that meets every 6 months. Expected and Unexpected Adverse Events will be recorded according to PET Center and NIH guidelines

Additional Information

Dr. Kelly Cosgrove Principal Investigator

Yale University

Phone: 2037376969

Results disclosure agreements

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