Study Stopped
Due to challenges associated with the Covid-19 pandemic, we were unable to complete recruitment as planned during the period we had funding to do so.
Brief Stresses Experimental Study
Brief Stresses and DNA Integrity: An Experimental Analysis
2 other identifiers
interventional
239
1 country
1
Brief Summary
The goal of this study is to examine the impact of psychological stress on DNA integrity by conducting an experiment under controlled conditions with healthy volunteers to directly test the extent to which acute stress increases DNA damage, while simultaneously testing the blocking effects of pre-treatment with propranolol, and exploring key hypothesized mediators and moderators of the severity of the DNA damage.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Oct 2017
Longer than P75 for phase_1
1 active site
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
Study Start
First participant enrolled
October 5, 2017
CompletedFirst Submitted
Initial submission to the registry
March 26, 2019
CompletedFirst Posted
Study publicly available on registry
March 28, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 27, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
January 27, 2022
CompletedJuly 18, 2023
July 1, 2023
4.3 years
March 26, 2019
July 17, 2023
Conditions
Outcome Measures
Primary Outcomes (1)
DNA Stress Response
Change in percent tail intensity will be measured using the Comet assay of DNA damage in blood samples
Blood samples will be collected after a 60 minute baseline period and after the approximately 15 minute acute stress task period
Secondary Outcomes (10)
DNA Stress Response (8-OHdG)
Blood samples will be collected after a 60 minute baseline period and after the approximately 15 minute task period
DNA Stress Response (γ-H2AX)
Blood samples will be collected after a 60 minute baseline period and after the approximately 15 minute task period
Neuroendocrine Stress Response (Norepinephrine (NE))
Blood samples will be collected after a 60 minute baseline period and during/after the approximately 15 minute task period
Neuroendocrine Stress Response (Epinephrine (EPI))
Blood samples will be collected after a 60 minute baseline period and during/after the approximately 15 minute task period
Hematological Stress Response
Blood samples will be collected after a 60 minute baseline period and after the approximately 15 minute task period
- +5 more secondary outcomes
Study Arms (2)
Propranolol group
ACTIVE COMPARATORThis group will receive a single oral dose (80mg) of propranolol in a blinded capsule during their acute stress study visit.
Placebo group
PLACEBO COMPARATORThis group will receive a single blinded capsule containing no active medication during their acute stress study visit.
Interventions
A single oral dose (80mg) of propranolol will be administered in a blinded capsule at the start of the baseline monitoring period of the acute stress study visit.
A single blinded capsule containing no active medication will be administered at the start of the baseline monitoring period of the acute stress study visit.
Participants will complete speech and arithmetic tasks, performed in front of an audience (e.g., researcher staff members) and recorded by a video camera to assess non-verbal behaviors and evaluate performance. The task will be initiated following completion of baseline sample collection during the acute stress study visit and will take approximately 15 minutes.
Participants will sit quietly for 5 minutes, read a short passage aloud for 5 minutes, and read a list of numbers aloud for 5 minutes. The task will be initiated following completion of baseline sample collection during the no stress study visit and will take approximately 15 minutes.
Eligibility Criteria
You may qualify if:
- Age 20-59
- Weigh at least 110 pounds
- Fasting blood sugar below 150 mg/dL, or random blood sugar below 200 mg/dL
- Thyroid stimulating hormone level between 0.25 mU/L and 6.0 mU/L
- Resting blood pressure below 160/100 mm Hg
- If female, have either regular menstrual periods (21-35 days) or are post-menopausal
You may not qualify if:
- Use of illicit drugs or nicotine-containing products other than cigarettes in the past month
- Current alcohol abuse
- Diagnosed with any of the following: cancer (other than basal cell skin cancer), chronic obstructive pulmonary disorder (COPD), multiple sclerosis (MS), severe traumatic brain injury, hypertension (high blood pressure), coronary artery disease, congestive heart failure, or other serious heart disease
- Current diabetes, asthma, depression, bipolar disorder, anxiety, or schizophrenia
- If female, pregnancy or breastfeeding within the past 3 months
- If female, taking any medications that prevent monthly menstrual cycles (e.g., birth control shot, IUD, "seasonal" birth control)
- Resting systolic blood pressure of \< 90 mm Hg or resting pulse \< 50 beats per minute
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Dana Bovbjerglead
- National Cancer Institute (NCI)collaborator
Study Sites (1)
UPMC Shadyside
Pittsburgh, Pennsylvania, 15232, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Dana Bovbjerg, PhD
University of Pittsburgh
- PRINCIPAL INVESTIGATOR
Frank Jenkins, PhD
University of Pittsburgh
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- BASIC SCIENCE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
March 26, 2019
First Posted
March 28, 2019
Study Start
October 5, 2017
Primary Completion
January 27, 2022
Study Completion
January 27, 2022
Last Updated
July 18, 2023
Record last verified: 2023-07