E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Symptomatic orthostatic hypotension (SOH) |
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E.1.1.1 | Medical condition in easily understood language |
A significant decrease in blood pressure on standing or stretching that may cause fainting, dizziness or lightheadedness, unsteadiness, and blurred or impaired vision, among other symptoms. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Cardiovascular Diseases [C14] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 15.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10021102 |
E.1.2 | Term | Hypotension orthostatic symptomatic |
E.1.2 | System Organ Class | 100000004866 |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To assess the clinical benefit of midodrine HCl in subjects with SOH in a crossover design study by measuring the time to onset of syncopal symptoms/near syncope (of sufficient severity that would cause the subject to ask that the tilt table be returned to the horizontal position) during a protocolized tilt table test |
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E.2.2 | Secondary objectives of the trial |
To assess the safety of midodrine HCl after single dose administration |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Male and female subjects must be 18 years of age or older and ambulatory (when receiving adequate therapy for their SOH).
2. Females of child-bearing potential (FOCP) must have a negative serum beta human chorionic gonadotropin (HCG) pregnancy test. These females should abstain from sexual activity that could result in a pregnancy, or agree to use acceptable contraceptives throughout the period of the entire study and for 30 days after the last dose of investigational product.
3. A documented history of severe SOH (eg, due to Parkinson’s disease, Shy-Drager syndrome, multiple system atrophy, pure autonomic failure, or autonomic neuropathies) that, in the judgment of the treating physician, has required treatment with midodrine HCl, and has been at a stable dose for at least 3 months.
4. The subject has manifested at least 1 of the following symptoms while standing or had a medical history of 1 of the following when not treated for orthostatic hypotension (OH): dizziness, lightheadedness, feeling faint, or feeling like they might black out.
5. The subject is willing and able to undergo the procedures required by the protocol, including inpatient stay as required, assessment completion, protocol compliance, and participation in the placebo dosing period(s).
6. The subject has adequate hydration status (as assessed by physical examination and clinical laboratory parameters, eg, urine specific gravity).
7. Ability to provide written, signed, and dated informed consent to participate in the study
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E.4 | Principal exclusion criteria |
1. The subject is a pregnant or lactating female.
2. The subject has pre-existing sustained supine hypertension greater than 180mmHg systolic and 110mmHg diastolic BP or had these measurements at the Screening Visit. Sustained is defined as persistently greater at 2 separate measurements at least 5 minutes apart with the subject supine and at rest for the 5 minutes.
3. Subjects taking concomitant medications of interest are excluded unless those medications are reviewed and discussed with the Medical Monitor or Study Physician and documented prior to enrolling the subject. If agreement is reached between the Investigator and Sponsor for the subject to continue in the study, all allowed medications should be maintained at a constant dose throughout the study.
4. The Principal Investigator deems any clinical laboratory test (screening test) abnormality clinically significant.
5. The subject has participated in other studies of investigational drugs or devices within 30 days prior to enrollment in this study (other than Study SPD426-405).
6. Current or relevant history of physical or psychiatric illness, any medical disorder that may require treatment or make the subject unlikely to fully comply with the requirements of the study or complete the study, or any condition that presents undue risk from the investigational product or study procedures.
7. The subject has a concurrent chronic or acute illness, disability, or other condition (including significant unexpected laboratory or electrocardiogram [ECG] findings) that might confound the results of the tests and/or measurements administered in this study, or that might have increased the risk to the subject.
8. Known or suspected intolerance or hypersensitivity to the investigational product(s), closely-related compounds, or any of the stated ingredients.
9. Prior enrollment failure or randomization in this study.
10. History of alcohol abuse or other substance abuse within the last year.
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary endpoint in this study is the time (seconds) to onset of syncopal symptoms/near syncope as recorded in the tilt table tests performed at 1-hour post-dose on Days 2 and 3. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
Safety will be assessed by adverse events (AEs), clinical laboratory parameters, vital signs (systolic and diastolic BP, pulse, body temperature, and respiratory rate), and electrocardiograms (ECGs). |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
From screening to the follow-up phone call.
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | Yes |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 6 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 16 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Czech Republic |
Poland |
Slovakia |
United States |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 2 |