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Symptomatic NOH in patients with primary autonomic failure is thought to be a consequence of norepinephrine depletion leading to a diminished capacity to effect an appropriate cardiovascular response to an orthostatic challenge resulting in symptomatic cerebral-hypoperfusion. Droxidopa augments norepinephrine levels which should lead to improved cerebral perfusion following orthostatic challenge thereby reducing the symptoms of NOH. The present study will evaluate the long-term safety of droxidopa.
This is a Phase III, multi-center, open-label study designed to evaluate the long-term safety of droxidopa in subjects with neurogenic orthostatic hypotension (NOH) associated with Primary Autonomic Failure, Dopamine Beta Hydroxylase Deficiency or Non-Diabetic Autonomic Neuropathy.
Patients will be initially treated with droxidopa at their individualized dose identified during the titration phase in Protocol 301. Patients will not require adjustment of their dose, unless their physician feels a dose change will benefit their symptoms, or side effects. At any point in the study a patient's physician may elect to titrate the subject to a higher or lower dose if they feel additional benefit can be safely derived or to deal with any unwanted side-effect.
Patients will return to the clinic for study visits at 1, 3, 6, 9 and 12 months (± 1 week allowed for 1 month visit, ± 2 weeks allowed for subsequent study visits). Patients who prematurely withdraw from the study will be asked to attend the study center for a final assessment At the conclusion of the 12 month treatment period, all patients who benefit from treatment with droxidopa will be offered the option to continue to receive open-label droxidopa through a separate access program.
At any time during the study, patients can schedule a visit with their study physician if they experience a worsening of symptoms and wish to have their dose adjusted or to remove themselves from the trial.
Patients who decide to terminate their participation in the study will receive a phone call 1 month after leaving the trial to follow-up on any new or ongoing adverse events (AEs).
It is a recognized best practice that patients with neurogenic orthostatic hypotension are advised not to lay fully supine because of the associated increased risk of supine hypertension inherent with their condition. Patients participating in this study should be advised to sleep in a semi-recumbent position. .
Patients will attend the study center as out-patients. Patients will be identified using the unique identification number assigned during Protocol 301.
Allocation: Non-Randomized, Control: Active Control, Endpoint Classification: Safety Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Primary Autonomic Failure
Enrolling by invitation
Published on BioPortfolio: 2014-08-27T03:13:21-0400
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