NCT01304940

Brief Summary

The purpose of this study is to examine the relationship between trauma and startle. The investigators are also looking at the effect of menstrual phase on this relationship.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
50

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Dec 2008

Longer than P75 for all trials

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2008

Completed
2.2 years until next milestone

First Submitted

Initial submission to the registry

February 25, 2011

Completed
3 days until next milestone

First Posted

Study publicly available on registry

February 28, 2011

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2012

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2013

Completed
6.2 years until next milestone

Results Posted

Study results publicly available

April 19, 2019

Completed
Last Updated

June 11, 2024

Status Verified

May 1, 2024

Enrollment Period

3.2 years

First QC Date

February 25, 2011

Results QC Date

September 18, 2017

Last Update Submit

May 29, 2024

Conditions

Keywords

StressStress Disorders, Post-TraumaticStress Disorders, Traumatic

Outcome Measures

Primary Outcomes (1)

  • Prepulse Inhibition

    To calculate prepulse inhibition (PPI), first an O-EMG response score (O-EMG-R) for each trial was calculated. O-EMGR was measured in microvolts and each value was subjected to a square root transformation. For each participant, the mean O-EMG-R scores were calculated for both startle alone and prepulse + startle trials across the entire session. PPI is a ratio and was calculated by the formula below: PPI=(mean OEMG-R score on prepulse+startle trials-mean OEMG-R on Startle alone trials)/mean OEMG-R on startle alone trials. A negative value on this PPI ratio is indicative of greater prepulse inhibition. Means and SEs below reflect estimated means and SEs for the PTSD group and trauma control group from the ANOVA conducted with menstrual phase and the PTSD group X menstrual phase interaction included in the model.

    This measure was assessed twice for each participant, once in the midluteal phase of the menstrual cycle and once in the early follicular phase of the menstrual cycle, up to approximately 20 days apart.

Study Arms (2)

PTSD group

Individuals in this group meet criteria for PTSD as defined by DSM-IV

trauma control group

individuals in this group do not meet criteria for any Axis I diagnosis as defined by DSM-IV

Eligibility Criteria

Age18 Years - 55 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Women, ages 18-55.

You may qualify if:

  • Women, ages 18-55 years old who have a regular menstrual cycle and who can come in to participate in the afternoon

You may not qualify if:

  • Long-term medications, oral or steroid contraceptives, irregular menstrual cycle

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

VA Boston Healthcare System Jamaica Plain Campus, Jamaica Plain, MA

Boston, Massachusetts, 02130-4817, United States

Location

Biospecimen

Retention: SAMPLES WITH DNA

Urine, blood and saliva samples are taken. Only blood and saliva samples are retained and used to measure stress hormone levels.

MeSH Terms

Conditions

Stress Disorders, Post-TraumaticStress Disorders, Traumatic

Condition Hierarchy (Ancestors)

Trauma and Stressor Related DisordersMental Disorders

Results Point of Contact

Title
Suzanne Pineles
Organization
VA ORD

Study Officials

  • Suzanne Pineles, PhD

    VA Boston Healthcare System Jamaica Plain Campus, Jamaica Plain, MA

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 25, 2011

First Posted

February 28, 2011

Study Start

December 1, 2008

Primary Completion

February 1, 2012

Study Completion

February 1, 2013

Last Updated

June 11, 2024

Results First Posted

April 19, 2019

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

Locations