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Stress, Salt Excretion, and Nighttime Blood Pressure

NCT03636490 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 323

Last updated 2025-05-11

Study results available
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Summary

The study will examine urinary sodium excretion induced by psychological stress and its diurnal pattern as a novel biological mechanism that may underlie an abnormal diurnal pattern of blood pressure. The study will test the hypotheses that lower stress-induced sodium excretion is associated with an abnormal diurnal pattern of sodium excretion, and that an abnormal diurnal pattern of sodium excretion is associated with an abnormal diurnal pattern of blood pressure.

Primary Aim 1: To examine the association between urinary sodium excretion after provoked psychological stress and the diurnal pattern of sodium excretion.

Primary Aim 2: To examine the association between the diurnal pattern of sodium excretion and the diurnal pattern of BP.

Secondary Aim: To examine whether the association between urinary sodium excretion after provoked stress and the diurnal pattern of sodium excretion is modified by ecological momentary levels of perceived stress, experienced during the daytime period.

Exploratory Aim: To determine the socio-demographic, behavioral, and psychological traits, chronic stress, and biological stress-related factors that are associated with lower stress-induced sodium excretion. Identification of these factors will help determine who is at risk for having a differential sodium excretion response to psychological stress.

Conditions

  • Blood Pressure
  • Psychological Stress

Interventions

BEHAVIORAL

Psychological Stress Intervention

All enrolled participants who attended the laboratory visit underwent stress-inducing tasks (psychological stress) using validated research tools. Participants performed a 5-minute computer Stroop Color Test and a 5-minute verbal Mental Arithmetic Task. The research assistant asked the participant to work as quickly and accurately as possible for both tasks.

Sponsors & Collaborators

  • National Heart, Lung, and Blood Institute (NHLBI)

    collaborator NIH

  • Columbia University

    lead OTHER

Principal Investigators

  • Daichi Shimbo, MD · Professor of Medicine, Dept of Med Beh Cardiology

Study Design

Allocation
NA
Purpose
OTHER
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
21 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2018-11-16
Primary Completion
2023-12-04
Completion
2023-12-04

Countries

  • United States

Study Locations

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Entities

Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03636490 on ClinicalTrials.gov