- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00782340
A Clinical Study for Patients With Neurogenic Orthostatic Hypotension (NOH) Using Droxidopa (NOH301)
Phase III, Multi-Center, Study to Assess the Clinical Effect of Droxidopa in Subjects With Primary Autonomic Failure, Dopamine Beta Hydroxylase Deficiency or Non-Diabetic Neuropathy and Symptomatic NOH
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Systolic blood pressure is transiently and minimally decreased in healthy individuals upon standing. Normal physiologic feedback mechanisms work through neurally-mediated pathways to maintain the standing blood pressure, and thus maintain adequate cerebral perfusion. The compensatory mechanisms that regulate blood pressure upon standing are dysfunctional in subjects with orthostatic hypotension (OH), a condition that may lead to inadequate cerebral perfusion with accompanying symptoms of syncope, dizziness or lightheadedness, unsteadiness and blurred or impaired vision, among other symptoms.
The autonomic nervous system has a central role in the regulation of blood pressure. Primary Autonomic Failure is manifested in a variety of syndromes. Orthostatic hypotension is a usual presenting symptom. Primary Autonomic Failure may be the primary diagnosis, and classifications include pure autonomic failure (PAF), also called idiopathic orthostatic hypotension (Bradbury-Eggleston syndrome) autonomic failure with multiple system atrophy (Shy-Drager syndrome) and also Parkinson's disease. Regardless of the primary condition, autonomic dysfunction underlies orthostatic hypotension.
Orthostatic hypotension may be a severely disabling condition which can seriously interfere with the quality of life of afflicted subjects. Currently available therapeutic options provide some symptomatic relief in a subset of subjects, but are relatively ineffective and are often accompanied by severe side effects that limit their usefulness. Support garments (tight-fitting leotard) may prove useful in some subjects, but is difficult to don without family or nursing assistance, especially for older subjects. Midodrine, fludrocortisone, methylphenidate, ephedrine, indomethacin and dihydroergotamine are among some of the pharmacological interventions that have been used to treat orthostatic hypotension, although only midodrine is specifically approved for this indication. The limitations of these currently available therapeutic options, and the incapacitating nature and often progressive downhill course of disease, point to the need for an improved therapeutic alternative.
The current withdrawal design study will measure the efficacy of droxidopa on symptoms of neurogenic orthostatic hypotension in patients randomized to continued droxidopa treatment versus placebo, following 14 days of double-blind treatment.
droxidopa
droxidopa [also, known as L-threo-3,4-dihydroxyphenylserine, L-threo-DOPS, or L-DOPS] is the International non-proprietary name (INN) for a synthetic amino acid precursor of norepinephrine (NE), which was originally developed by Sumitomo Pharmaceuticals Co., Limited, Japan. It has been approved for use in Japan since 1989. Droxidopa has been shown to improve symptoms of orthostatic hypotension that result from a variety of conditions including Shy Drager syndrome (Multiple System Atrophy), Pure Autonomic Failure, and Parkinson's disease. There are four stereoisomers of DOPS; however, only the L-threo-enantiomer (droxidopa) is biologically active.
The exact mechanism of action of droxidopa in the treatment of symptomatic NOH has not been precisely defined; however, its NE replenishing properties with concomitant recovery of decreased noradrenergic activity are considered to be of major importance.
Droxidopa has been marketed in Japan since 1989. Data from clinical studies and post-marketing surveillance programs conducted in Japan show that the most commonly reported adverse drug reactions with droxidopa are increased blood pressure, nausea, and headache. In clinical studies, the prevalence and severity of droxidopa adverse effects appear to be similar to those reported by the placebo control arm.
Study Type
Enrollment (Actual)
Phase
- Phase 3
Contacts and Locations
Study Locations
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Alberta
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Calgary, Alberta, Canada, T2N 4N1
- University of Calgary
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Edmonton, Alberta, Canada, T5G 0B7
- University of Alberta
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Manitoba
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Winnipeg, Manitoba, Canada, R3J 2H7
- Movment Disorder Clinic Deer lodge Centre
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Nova Scotia
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Halifax, Nova Scotia, Canada, GB3J 3T1
- David B. King, - Private Clinic
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Ontario
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London, Ontario, Canada, N6A 5A5
- London Health Sciences Centre, UH
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Toranto, Ontario, Canada, M5T 2S8
- UHNresearch
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Quebec
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Montreal, Quebec, Canada, H2W 1 R7
- IRCM
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Alabama
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Huntsville, Alabama, United States, 35801
- North Alabama Neuroscience
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Arizona
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Scottsdale, Arizona, United States, 85340
- Mayo Clinic-Arizona
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Arkansas
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Little Rock, Arkansas, United States, 72205
- Arkansas Cardiology
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California
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Irvine, California, United States, 92697
- University of California, Irvine
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Florida
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Bradenton, Florida, United States, 34205
- Bradenton Neurology, Inc
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St. Petersburg, Florida, United States, 33701
- Suncoast Neuroscience Associates, Inc
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Kansas
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Kansas City, Kansas, United States, 66160
- University of Kansas Medical Center
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Maryland
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Bethesda, Maryland, United States, 20892
- Cncs, Ninds,Nih
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Mississippi
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Hattiesburg, Mississippi, United States, 39401
- Nerological Reserch Center at Hattiesburg
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New York
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Manshasette, New York, United States, 11030
- North Shore Hospital
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Pennsylvania
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Philadelphia, Pennsylvania, United States, 19107
- Pennsylvania Hospital of the University of PA Health System- Department of Neurology
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Upland, Pennsylvania, United States, 19013
- HAN Neurological Associates
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Texas
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Houston, Texas, United States, 77030
- Baylor College of Medicine
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Washington
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Kirkland, Washington, United States, 98034
- Evergreen Hospital Medical Center; Booth Gardner Parkinson's Care Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
To be eligible for inclusion, each patient must fulfill the following criteria:
- Male or female and aged 18 years or over
- Clinical diagnosis of orthostatic hypotension associated with Primary Autonomic Failure (PD, MSA and PAF), Dopamine Beta Hydroxylase Deficiency or Non-Diabetic Autonomic Neuropathies
- A documented fall in systolic blood pressure of at least 20 mmHg, or in diastolic blood pressure of at least 10 mmHg, within 3 minutes after standing;
- Provide written informed consent to participate in the study and understand that they may withdraw their consent at any time without prejudice to their future medical care.
Exclusion Criteria:
- Currently taking ephedrine or midodrine
- Patients taking ephedrine or midodrine must stop taking these drugs at least 2 days prior to their baseline visit (Visit 2).
- The use of short-acting anti-hypertensive medications at bedtime is permitted.
- Currently taking tri-cyclic antidepressant medication or other norepinephrine re-uptake inhibitors;
- Have changed dose, frequency and or type of prescribed medication, within two weeks of study start (excluding ephedrine and midodrine)
- History of more than moderate alcohol consumption
- History of known or suspected drug or substance abuse
- Women of childbearing potential who are not using a medically accepted contraception
- For WOCP a serum beta HCG pregnancy test must be conducted at screening, and a urine pregnancy test must be conducted at baseline and study termination; the results must be negative at screening and at baseline for the patient to receive study medication.
- Sexually active males whose partner is a WOCP and who do not agree to use condoms for the duration of the study and for 30 days after the last dose;
- Women who are pregnant or breast feeding
- Known or suspected hypersensitivity to the study medication or any of its ingredients
- Pre-existing sustained severe hypertension (BP 180/110 mmHg in the sitting position)
- Have atrial fibrillation or, in the investigator's opinion, have any other significant cardiac arrhythmia
- Any other significant systemic, hepatic, cardiac or renal illness
- Diabetes mellitus or insipidus
- Have a history of closed angle glaucoma
- Have a known or suspected malignancy
- Have a serum creatinine level > 130 mmol/L
- Patients with known gastrointestinal illness or other gastrointestinal disorder that may, in the investigator's opinion, affect the absorption of study drug
- In the investigator's opinion, have clinically significant abnormalities on clinical examination or laboratory testing
- In the investigator's opinion, are unable to adequately co-operate because of individual or family situation
- In the investigator's opinion, are suffering from a mental disorder that interferes with the diagnosis and/or with the conduct of the study, e.g. schizophrenia, major depression, dementia
- Are not able or willing to comply with the study requirements for the duration of the study
- Have participated in another clinical trial with an investigational agent (including named patient or compassionate use protocol) within 4 weeks before the start of the study
- Previous enrolment in the study.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Active Comparator: Droxidopa
100 mg, oral, three times per day 200 mg, oral, three times per day 300 mg, oral, three times per day 400 mg, oral, three times per day 500 mg, oral, three times per day 600 mg, oral, three times per day
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100 mg, oral, three times per day 200 mg, oral, three times per day 300 mg, oral, three times per day 400 mg, oral, three times per day 500 mg, oral, three times per day 600 mg, oral, three times per day
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Placebo Comparator: Placebo
100 mg, oral, three times per day 200 mg, oral, three times per day 300 mg, oral, three times per day 400 mg, oral, three times per day 500 mg, oral, three times per day 600 mg, oral, three times per day
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100 mg, oral, three times per day 200 mg, oral, three times per day 300 mg, oral, three times per day 400 mg, oral, three times per day 500 mg, oral, three times per day 600 mg, oral, three times per day
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Orthostatic Hypotension Questionnaire Score (OHQ)
Time Frame: 7 days
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The OHQ is the average of two sub-scales, the Orthostatic Hypotension Symptom Assessment Scale (OHSA) and the Orthostatic Hypotension Daily Activities Scale (OHDAS). Each asks the patient to rate their symptoms or disease impact over the past week. The OHSA sub-scale is the average of six items: 1) Dizziness, lightheadedness, feeling faint or feeling like you might black out; 2) Problems with vision; 3) Weakness; 4) Fatigue; 5) Trouble concentrating; and 6) Head/neck discomfort. The OHDAS sub-scale is the average of four items: 1) Standing for a short time; 2) Standing for a long time; 3) Walking for a short time; and 4) Walking for a long time. Each item is scored on a Likert scale from 0 to 10, with 10 being the most severe. For the change from randomization, negative numbers represent improvement from randomization in OHQ score. |
7 days
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Ability to Conduct Activities of Daily Living Score (OHDAS Composite Score)
Time Frame: 7 days
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OHDAS composite scale range: 0 (none) -10 (worst), likert scale.
Change: score at end of study minus score at randomization.
A negative score indicates an improvement during the double-blind randomized phase relative to value at randomization.
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7 days
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Change in Orthostatic Hypotension Symptom Assessment (OHSA Composite) Score
Time Frame: 7 days
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OHSA composite scale range: 0 (none) -10 (worst), likert scale.
Change: score at end of study minus score at randomization.
A negative score indicates an improvement during the double-blind randomized phase relative to value at randomization.
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7 days
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Change in Activities Involving Standing a Short Time (OHDAS Item 1)
Time Frame: 7 days
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OHDAS Item 1 scale range: 0 (none) -10 (worst), likert scale.
Change: score at end of study minus score at randomization.
A negative score indicates an improvement during the double-blind randomized phase relative to value at randomization.
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7 days
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Change in Activities Involving Walking a Short Time (OHDAS Item 3)
Time Frame: 7 days
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OHDAS Item 3 scale range: 0 (none) -10 (worst), likert scale.
Change: score at end of study minus score at randomization.
A negative score indicates an improvement during the double-blind randomized phase relative to value at randomization.
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7 days
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Change in Dizziness/ Lightheadedness/ Feeling Faint/ or Feeling Like You Might Blackout (OHSA Item 1)
Time Frame: 7 days
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OHSA item 1 scale range: 0 (none) -10 (worst), likert scale.
Change: score at end of study minus score at randomization.
A negative score indicates an improvement during the double-blind randomized phase relative to value at randomization.
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7 days
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Patient-Reported Clinical Global Improvement - Severity Scores
Time Frame: 7 days
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The CGI-S is a 7 point scale ranging from a score of 1 (no symptoms) to 7 (severe symptoms). Patients were grouped according to OH severity at the end of the randomization period as follows; Normal-Borderline OH (CGI-S 1-2), Mild-Moderate OH (CGI-S 3-4), Marked OH-Most Ill with OH (CGI-S 5-7). |
7 days
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Clinician-Reported Clinical Global Improvement - Severity Scores
Time Frame: 7 days
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The CGI-S is a 7 point scale ranging from a score of 1 (no symptoms) to 7 (severe symptoms). Patients were grouped according to OH severity at the end of the randomization period as follows; Normal-Borderline OH (CGI-S 1-2), Mild-Moderate OH (CGI-S 3-4), Marked OH-Most Ill with OH (CGI-S 5-7). |
7 days
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Change in Systolic Blood Pressure (SBP) Measurements 3 Minutes Post Standing
Time Frame: 7 days
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Change: standing systolic blood pressure at end of study minus standing systolic blood pressure at randomization.
A positive score indicates an improvement during the double-blind randomized phase relative to value at randomization.
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7 days
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Stephen Greer, MD, Arkansas Cardiology
- Principal Investigator: Alberto Vasquez, MD, Suncoast Neuroscience
- Principal Investigator: Richard Hull, MD, North Alabama Neuroscience
- Principal Investigator: Brent Goodman, MD, Mayo Clinic
- Principal Investigator: Alvin McElveen, MD, Bradenton Neurology, Inc
Publications and helpful links
General Publications
- Biaggioni I, Arthur Hewitt L, Rowse GJ, Kaufmann H. Integrated analysis of droxidopa trials for neurogenic orthostatic hypotension. BMC Neurol. 2017 May 12;17(1):90. doi: 10.1186/s12883-017-0867-5.
- Francois C, Rowse GJ, Hewitt LA, Vo P, Hauser RA. Analysis of number needed to treat for droxidopa in patients with symptomatic neurogenic orthostatic hypotension. BMC Neurol. 2016 Aug 18;16(1):143. doi: 10.1186/s12883-016-0665-5.
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- Droxidopa NOH301
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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-
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