- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04017039
Sleep, Blood Pressure and Vascular Health
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Colorado
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Boulder, Colorado, United States, 80309
- UC-Boulder Clinical and Translational Research Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
Subjects will be men and women of all races and ethnic backgrounds aged 45-65 years.
All women will be premenopausal, perimenopausal or post-menopausal not taking hormone replacement therapy.
Subjects will be prehypertensive/hypertensive (Stage 1 hypertension) defined as resting systolic blood pressure 125-159 mmHg and/or diastolic blood pressure 75-99 mmHg.
Subjects will have no overt signs of disease as assessed by:
- medical history;
- physical examination;
- electrocardiogram and BP at rest and maximal exercise;
- sedentary as determined from the Stanford Physical Activity Questionnaire (<35 kcal/wk) and will not have engaged in any program of regular physical activity for at least 6 months prior to the study.
- Subjects that have a pre-existing diagnosis of obstructive sleep apnea, or are determined to have obstructive sleep apnea based on their sleep disorders screening visit will be allowed in the study, but will not take part in the sleep intervention/post sleep intervention visits.
Exclusion Criteria:
History of stroke (phone screen and medical record) Peripheral vascular disease (phone screen and medical record) History of anaphylaxis to betadine, lidocaine, iodine Body mass index > 40 kg/m2
Subjects taking blood pressure-or diabetes related medication Chronic Insomnia (prior or current diagnosis) History of or current psychiatric disorder (e.g., prior or current diagnosis, current BDI-II>13; BAI>10) Significant organ system dysfunction/disease (e.g. diabetes, severe pulmonary, kidney disease) History of seizure disorder Pregnant/nursing Positive toxicology screen-(THC, OPI, AMP, COC, PCP, BAR, BZO, MAMP/MDMA upon sleep lab admission)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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No Intervention: Phase 1
Phase I is a cross-sectional study to compare endothelial vasodilator and fibrinolytic function in adults with elevated blood pressure who habitually sleep more than 7 hours/night (normal sleep) and those who habitually sleep less than 6.5 hr/night (short sleep)
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Experimental: Phase 2
Phase II is an intervention study to determine the effects of individualized targeted sleep interventions that increase sleep duration and improve sleep quality on endothelial vasodilator and fibrinolytic function in adults with elevated blood pressure who habitually sleep less than 6.5 hr/night (Specific Aims 3).
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Phase 1: Systolic Blood Pressure (SBP)
Time Frame: SBP will be measured during Phase 1 at the participants week 1 visit.
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SBP will be measured during Phase 1 at the participants week 1 visit.
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Phase 2: Systolic Blood Pressure (SBP)
Time Frame: SBP will be measured during Phase 2 at the participants week 8 visit.
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SBP measured following the participants 8 week sleep intervention
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SBP will be measured during Phase 2 at the participants week 8 visit.
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Phase 1: Diastolic Blood Pressure (DBP)
Time Frame: DBP will be measured during Phase 1 at the participants week 1 visit.
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DBP will be measured during Phase 1 at the participants week 1 visit.
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Phase 2: Diastolic Blood Pressure (DBP)
Time Frame: DBP wwill be measured during Phase 2 at the participants week 8 visit.
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DBP measured following the participants 8 week sleep intervention
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DBP wwill be measured during Phase 2 at the participants week 8 visit.
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Phase 1: Forearm blood flow (FBF) response to Acetylcholine (ACh)
Time Frame: FBF response to ACh will be measured during Phase 1 at the participants visit 3 which is ~3 weeks from their respective start date.
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FBF response to ACh will be measured during Phase 1 at the participants visit 3 which is ~3 weeks from their respective start date.
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Phase 2: FBF response to Acetylcholine (ACh)
Time Frame: FBF response to ACh will be measured during Phase 2 at the participants visit 9 which is ~13 weeks from their respective start date.
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FBF to ACh will be measured following the participants 8 week sleep intervention
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FBF response to ACh will be measured during Phase 2 at the participants visit 9 which is ~13 weeks from their respective start date.
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Phase 1: FBF response to Sodium Nitroprusside (NTP)
Time Frame: FBF response to NTP will be measured during Phase 1 at the participants visit 3 which is ~3 weeks from their respective start date.
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FBF response to NTP will be measured during Phase 1 at the participants visit 3 which is ~3 weeks from their respective start date.
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Phase 2: FBF response to Sodium Nitroprusside (NTP)
Time Frame: FBF response to NTP will be measured during Phase 2 at the participants visit 9 which is ~13 weeks from their respective start date.
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FBF to NTP will be measured following the participants 8 week sleep intervention
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FBF response to NTP will be measured during Phase 2 at the participants visit 9 which is ~13 weeks from their respective start date.
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Phase 1: Endothelial t-PA Release in response to Bradykinin (BDK)
Time Frame: t-PA release will be measured during Phase 1 at the participants visit 3 which is ~3 weeks from their respective start date.
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t-PA release will be measured during Phase 1 at the participants visit 3 which is ~3 weeks from their respective start date.
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Phase 2: Endothelial t-PA Release in response to Bradykinin (BDK)
Time Frame: t-PA release will be measured during Phase 2 at the participants visit 9 which is ~13 weeks from their respective start date.
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Endothelial t-PA release will be measured following the participants 8 week sleep intervention.
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t-PA release will be measured during Phase 2 at the participants visit 9 which is ~13 weeks from their respective start date.
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Phase 1: FBF response to L-NMMA
Time Frame: FBF response to L-NMMA will be measured during Phase 1 at the participants visit 3 which is ~3 weeks from their respective start date.
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FBF response to L-NMMA will be measured during Phase 1 at the participants visit 3 which is ~3 weeks from their respective start date.
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Phase 2: FBF response to L-NMMA
Time Frame: FBF response to L-NMMA will be measured during Phase 2 at the participants visit 9 which is ~13 weeks from their respective start date.
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FBF to L-NMMA will be measured following the participants 8 week sleep intervention.
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FBF response to L-NMMA will be measured during Phase 2 at the participants visit 9 which is ~13 weeks from their respective start date.
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Phase 1: FBF response to ACh+L-NMMA
Time Frame: FBF response to ACh+L-NMMA will be measured during Phase 1 at the participants visit 3 which is ~3 weeks from their respective start date.
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FBF response to ACh+L-NMMA will be measured during Phase 1 at the participants visit 3 which is ~3 weeks from their respective start date.
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Phase 2: FBF response to ACh+L-NMMA
Time Frame: FBF response to ACh+L-NMMA will be measured during Phase 2 at the participants visit 9 which is ~13 weeks from their respective start date.
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FBF to ACh+L-NMMA will be measured following the participants 8 week sleep intervention
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FBF response to ACh+L-NMMA will be measured during Phase 2 at the participants visit 9 which is ~13 weeks from their respective start date.
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Phase 1: Pittsburgh Sleep Quality Index (PSQI)
Time Frame: The PSQI questionnaire will be administered during Phase 1 at the participants week 1 visit.
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This questionnaire assesses sleep quality.
Scores range from 0 indicating no difficulty and 21 indicating severe difficulty.
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The PSQI questionnaire will be administered during Phase 1 at the participants week 1 visit.
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Phase 2: PSQI
Time Frame: The PSQI questionnaire will be administered during Phase 2 at the participants week 8 visit.
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This questionnaire assesses sleep quality.
Scores range from 0 indicating no difficulty and 21 indicating severe difficulty.
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The PSQI questionnaire will be administered during Phase 2 at the participants week 8 visit.
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Phase 1: Insomnia Severity Index
Time Frame: The insomnia severity index questionnaire will be administered during Phase 1 at the participants week 1 visit.
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This questionnaire is used to assess the nature and severity of insomnia.
Scores range from 0 no insomnia to 28 severe insomnia.
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The insomnia severity index questionnaire will be administered during Phase 1 at the participants week 1 visit.
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Phase 2: Insomnia Severity Index
Time Frame: The insomnia severity index questionnaire will be administered during Phase 2 at the participants week 8 visit.
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This questionnaire is used to assess the nature and severity of insomnia.
Scores range from 0 no insomnia to 28 severe insomnia.
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The insomnia severity index questionnaire will be administered during Phase 2 at the participants week 8 visit.
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Phase 1: Epworth Sleepiness Scale
Time Frame: The Epworth Sleepiness scale questionnaire will be administered during Phase 1 at the participants week 1 visit.
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This questionnaire is used to assess daytime sleepiness.
Scores range from 0 normal daytime sleepiness to 24 severe daytime sleepiness.
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The Epworth Sleepiness scale questionnaire will be administered during Phase 1 at the participants week 1 visit.
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Phase 2: Epworth Sleepiness Scale
Time Frame: The Epworth Sleepiness scale questionnaire will be administered during Phase 2 at the participants week 8 visit.
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This questionnaire is used to assess daytime sleepiness.
Scores range from 0 normal daytime sleepiness to 24 severe daytime sleepiness.
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The Epworth Sleepiness scale questionnaire will be administered during Phase 2 at the participants week 8 visit.
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Christopher DeSouza, PhD, University of Colorado, Denver
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- 160646
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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