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Scientists probe blood flow secrets in aging and illness

NCT ID NCT02966665

Knowledge-focused Sponsor: Russell Richardson Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how blood vessels control blood flow in healthy people and those with conditions like COPD, heart failure, and high blood pressure. Researchers will measure changes in blood flow and blood pressure after exercise and other tests. The goal is to understand why blood vessels don't work as well with age and disease, which could lead to better treatments.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

About 420 people

The number the study aims to enrol. It can still change while the study runs.

Start date

Sep 2008

Expected to finish

Aug 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Healthy Young Volunteers: 18-30 years of age with no diseases or conditions that would affect their participation in the study * Healthy Older Controls: volunteers 65 years of age or older with no diseases or conditions that would affect their participation in the study * Coronary Angiography subjects: patients undergoing routine coronary angiography * Chronic Obstructive Pulmonary Disease subjects: patients diagnosed with mild to moderate COPD * Pulmonary Arterial Hypertension subjects: patients with idiopathic or heritable Group 1 pulmonary arterial hypertension * Heart Failure subjects: patients with Class I, II or III New York Heart Association symptoms of Heart Failure * Hypertension subjects: patients diagnosed with chronic high blood pressure Exclusion Criteria: * Severe COPD (use of supplemental oxygen, or have a one-second forced expiratory volume of less than 30% predicted) * History of myocardial infarction * History of percutaneous coronary revascularization * History of coronary artery bypass grafting * Unstable angina pectoris * History of variant angina * Ejection fraction \< 50% * Significant renal disease (Glomerular Filtration Rate \< 50 mL/min/1.73m2) * Subjects whose medical care or safety may be at risk from undergoing a Magnetic Resonance Imaging examination (e.g. pacemaker, metal implants, certain types of heart valves) * Subject is pregnant * Subject has physical ailments (other than COPD, PAH, HF, or hypertension) that would prevent them from study participation in the judgment of the investigator

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Conditions

The condition(s) this trial relates to.

chronic obstructive pulmonary disease Familial Primary Pulmonary Hypertension heart failure hypertensive disorder pulmonary arterial hypertension

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Chronic obstructive pulmonary disease Heart failure Hypertension Pulmonary artery hypertension

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • George E Wahlen VA Medical Center

    RECRUITING

    Salt Lake City, Utah, 84132, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.