A Study for Patients With Neurogenic Orthostatic Hypotension

Completed · Phase 4

Conditions studied: Hypotension, Orthostatic

In brief

We are seeking male and female patients to voluntarily take part in a clinical research study. Patients must be aged 18 or older and diagnosed with symptomatic orthostatic hypotension (low blood pressure while in the upright position) due to Parkinson's disease, multiple system atrophy, pure autonomic failure or autonomic neuropathies (i.e. neurogenic orthostatic hypotension). Symptoms of low blood pressure include dizziness, lightheadedness, changes in vision and generalized weakness upon standing. The main effect of the drug being studied is to increase blood pressure in the upright position so symptoms will decrease. The purpose of this clinical study is to further assess the clinical benefit of midodrine hydrochloride (ProAmatine®), an approved treatment for orthostatic hypotension. During the course of the study, participants will receive either ProAmatine® or a placebo. Assessments will be made using questionnaires that measure symptom and activity levels. Blood pressure in the lying down and standing positions will be measured at each visit.

Key facts

Study ID

NCT00046475

Run by

Shire

People needed

140

Starts

1997-12-01

Expected to finish

1999-11-24

Last updated by the study team

2021-06-11

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• The male or female patient must be 18 years of age or older and ambulatory.
• Female patients must be: without menses for at least 12 months prior to screening; surgically sterilized (bilateral tubal ligation or hysterectomy); or practicing adequate means of birth control. Adequate means of birth control is defined as the use of prescribed birth control pills, IUD, or hormonal injections from at least one month prior to screening. Double-barrier methods and abstinence are also acceptable forms of birth control.
• The patient has been diagnosed with symptomatic orthostatic hypotension due to Parkinson's disease, multiple system atrophy, pure autonomic failure or autonomic neuropathies (i.e. neurogenic orthostatic hypotension).
• The patient manifests at least one of the following symptoms while standing or has a history of one of the following when not treated for orthostatic hypotension: dizziness, lightheadedness, feeling faint or feeling like they may black out.
• The patient is willing and able to undergo the procedures required by this protocol including morning office visits, assessment completion, protocol compliance and participation in the wash-out period.
• The patient signs an Institutional-Review-Board approved written Informed Consent form prior to any study procedures taking place.

You may not qualify if…

• The patient is pregnant or lactating female.
• The patient has pre-existing sustained supine hypertension greater than 180 systolic and 110 diastolic mmHg.
• The patient is taking medications such as vasodilators, pressors, diuretics, ACE inhibitors, angiotensin receptor blockers, beta-blockers, combined alpha and beta-blockers, MAOI's, herbals, or specific mixed effect medications.
• The Principal Investigator deems any laboratory test abnormality clinically significant.
• The patient has a diagnosis of any of the following disorders at the time of screening: pheochromocytoma; cardiac conditions including: congestive heart failure within the previous 6 months, myocardial infarction within the previous 6 months, symptomatic coronary artery disease, history of ventricular tachycardia, or uncontrolled cardiac arrhythmias; thyrotoxicosis; uncontrolled diabetes mellitus (uncontrolled defined as HgbA1c greater than or equal to 10%); history of cerebrovascular accident, transient ischemic attack (TIA) or symptomatic carotid artery stenosis within the previous 6 months; history of coagulopathies; pulmonary hypertension; severe psychiatric disorders; renal failure (creatinine equal to or greater than 2 times the upper limit of normal).
• The patient has a concurrent chronic or acute illness, disability, or other condition that might confound the results of the tests and/or measurements administered in this trial, or that might increase the risk to the patient.

Where it is running

• North Alabama Neuroscience Research — Huntsville, Alabama, United States
• Dr. Harry Pepe & Associates, Inc. — Miramar, Florida, United States
• Suncoast Neuroscience Associates, Inc. — St. Petersburg, Florida, United States
• Economou & Associates, LTD — Chicago, Illinois, United States
• Johns Hopkins Hospital — Baltimore, Maryland, United States
• Michigan Pain and Neurological Institute — Ann Arbor, Michigan, United States
• Dartmouth Hitchcock Medical Center — Lebanon, New Hampshire, United States
• NY Presbyterian Hospital — New York, New York, United States
• Medical College of Ohio — Toledo, Ohio, United States
• COR Clinical Research, LLC — Oklahoma City, Oklahoma, United States
• Westmoreland Neurology Associates Inc. — Greensburg, Pennsylvania, United States
• Neurological Associates of Delaware Valley — Upland, Pennsylvania, United States
• Diabetes & Glandular Disease Research Associates, PA — San Antonio, Texas, United States
• Monarch Medical Research — Norfolk, Virginia, United States
• West Virginia University — Morgantown, West Virginia, United States

Full record on ClinicalTrials.gov

Trial information comes from ClinicalTrials.gov and is refreshed daily. TrialsForMe does not provide medical care and does not run the studies it lists.