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Adrenergic Blockers for Cardiac Changes in Early Parkinson's Disease (Protocol 53136)

Primary Purpose

REM Sleep Behavior Disorder, Pre-motor Parkinson Disease, Symptomatic Parkinson Disease

Status
Recruiting
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
Carvedilol
Sponsored by
Michele Tagliati, MD
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for REM Sleep Behavior Disorder focused on measuring Early Parkinson Disease, REM Sleep Behaviour Disorder (RBD), carvedilol, Autonomic dysfunction, Neurodegeneration

Eligibility Criteria

25 Years - 85 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

Male or female of age between 25 and 85 years at time of enrollment.

Diagnosis of idiopathic REM sleep behavior disorder (iRBD) or Diagnosis of hyposmia. Diagnosis of RBD will be, established either as 'definite RBD' according to the criteria proposed by the International Classification of Sleep Disorders (ICSD)-2 [AASM, 2005] or 'probable RBD' following a score of 6 or higher in the RBD questionnaire (RBDSQ) with a score of at least 1 in subitems 6.1 to 6.4 of question 6.

At least one of the following:

  1. Diagnosis of hyposmia. Diagnosis of hyposmia will be established as a University of Pennsylvania Smell Identification Test (UPSIT) score < 20th percentile for the individual's age group and sex.
  2. Functional constipation, assessed by a scores > 4 on a questionnaire based on modified ROME III diagnostic criteria.
  3. Color vision abnormality, as assessed using HRR Pseudoisochromatic Plates, in the absence of congenital dyschromatopsia.
  4. Symptoms of depression, as assessed by a Beck Depression Inventory (BDI) fast screen score >3 or concurrent use of antidepressant medications

    • Abnormal 123I-MIBG myocardial scintigraphy, as defined by a Late H/M ratio < 2.2 and/or a WR >30%, with normal cardiac ejection fraction (LVEF >55%).
    • Capacity to give informed consent

Exclusion Criteria:

Secondary Parkinsonism, including tardive

Concurrent dementia defined by a score lower than 22 on the MoCA

Concurrent severe depression defined by a BDI fast screen score greater than 13

Comorbidities related to SNS hyperactivity

Heart failure (LVEF <45%)

Recent myocardial revascularization (<12 weeks)

Chronic Hypertension (SBP>140mmHg-DBP>90mmHg)

Atrial fibrillation

Diabetes mellitus

COPD

Sleep Apnea

Severely reduced kidney function (Glomerular Filtration Rate<30ml/min)

Contraindications to the use of carvedilol

Asthma or bronchospasm

Recent myocardial infarction (<48 h)

Ongoing unstable angina

Cardiogenic shock or prolonged hypotension

Second or Third-Degree AV block

Significant valvular aortic stenosis

Obstructive cardiomyopathy, or constrictive pericarditis

Symptomatic Bradycardia (HR<60) or Sick Sinus Syndrome

Stroke within the past 1 month

Severe Hepatic Dysfunction

Allergy/hypersensitivity to iodine or study medication

Sites / Locations

  • Cedars Sinai Medical CenterRecruiting

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

carvedilol therapy

Arm Description

The dosage of carvedilol will be gradually increased from the initial recommended starting dose of 3.125 mg twice/daily, the target dose will be 25mg twice daily (50 mg/day) and participants will take 50 mg/day carvedilol for 6 months.Subjects that cannot tolerate the 50 mg daily dose, will be offered to continue at the 25 mg daily dose.

Outcomes

Primary Outcome Measures

123I-MIBG reuptake changes
123I-MIBG reuptake will be measured by early and late Heart to Mediastinal ratio (H/M) and Washout ratio (WR) which will be calculated using the following formula: [(early heart counts/pixel - early mediastinum counts/pixel) - (late heart counts/pixel decay-corrected - late mediastinum counts/pixel decay-corrected)]/(early heart counts/pixel - early mediastinum counts/pixel). Care will be taken to exclude lung or liver from the myocardial and large vessels and lung from the mediastinum region of interest. MIBG abnormality cutoffs will be set for values of late H/M <2.2 and WR >30%.

Secondary Outcome Measures

Adverse Events frequency
Safety will be monitored collecting the type and frequency of adverse events, including clinical symptoms, changes in vital signs, clinical laboratory measures and EKG abnormalities.
Heart rate variability changes
Twenty-four-hour Holter monitoring of all patients will be conducted at two points during the study: 1) After MIBG and prior to the administration of the study drug and 2) within one week of the end of the six-month treatment trial. Two-channel Holter recordings will obtained and analyzed on a commercially available scanner in the cardiac laboratory at Cedars Sinai Medical Center, according to published guidelines.

Full Information

First Posted
December 9, 2018
Last Updated
August 23, 2022
Sponsor
Michele Tagliati, MD
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1. Study Identification

Unique Protocol Identification Number
NCT03775096
Brief Title
Adrenergic Blockers for Cardiac Changes in Early Parkinson's Disease (Protocol 53136)
Official Title
The Effect of Adrenergic Blocker Therapy on Cardiac and Striatal Transporter Uptake in Pre-Motor and Symptomatic Parkinson's Disease
Study Type
Interventional

2. Study Status

Record Verification Date
August 2022
Overall Recruitment Status
Recruiting
Study Start Date
April 4, 2019 (Actual)
Primary Completion Date
May 1, 2023 (Anticipated)
Study Completion Date
May 1, 2023 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor-Investigator
Name of the Sponsor
Michele Tagliati, MD

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Product Manufactured in and Exported from the U.S.
Yes
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
REM Behavior Sleep Disorder (RBD) is a sleep disorder causing people to 'act out' their dreams. A high percentage of individuals with idiopathic RBD (iRBD) are known to develop conditions affecting the neurons in the brain such as Parkinson's disease (PD). Based on the increased risk to develop PD, individuals with iRBD are currently considered ideal candidates for therapies that can possibly protects brain cells, due to the critical window of opportunity to intervene early before brain cell loss progresses significantly. Early changes of PD are associated with a number of symptoms including loss of smell, constipation, anxiety and depression. In addition, early heart and brain abnormalities can be visualized using specialized imaging techniques called 123I-MIBG myocardial scintigraphy (MIBG) and dopamine transporter (DAT) single photon emission computerized tomography (SPECT) respectively. The combined presence of certain symptoms and the use of these imaging techniques are considered early markers of PD in individuals with iRBD. In other conditions, like heart failure, MIBG abnormalities are reversed by drugs able to block excessive adrenergic stimulation, known as beta-blockers. In this study the investigators want to learn about the effect of treatment with the beta-blocker carvedilol on MIBG abnormalities found in iRBD patients at risk to develop PD. The investigators believe that reversing the MIBG abnormality might prelude to a slowing of the neurodegenerative process. This drug is approved by the U.S. Food and Drug Administration (FDA) for congestive heart failure, hypertension and left ventricular dysfunction after myocardial infarction. However, carvedilol is not approved by the FDA in patients with iRBD at risk for PD. The available doses for this drug oral formulations are 3.125mg, 6.25mg, 12.5mg and 25mg. Changes visualized with the MIBG imaging technique will be correlated to the presence and severity of neurological (i.e. tremors, stiffness, slow movements, walking difficulties) and other symptoms associated with PD (i.e. abnormal smell, constipation, depression, color vision abnormalities), as measured by specific clinical scales and exams.
Detailed Description
Idiopathic Parkinson's disease (PD) is a progressive neurodegenerative disorder of unknown etiology, characterized by bradykinesia (slowness of movements) associated with tremor at rest and/or muscle rigidity. PD is typically associated with a significant loss of dopaminergic neurons in the substantia nigra pars compacta(SNpc).The resulting nigro-striatal degeneration can be detected and quantified using a dopamine transporter (DAT) single photon emission computerized tomography (SPECT) imaging technique. This type of imaging, recently approved for clinical use in the United States, uses a labeled ligand (123I-Ioflupane) with high affinity to the DAT in the striatum. The amount of transporter, which plays a crucial role in the health of the presynaptic dopaminergic neurons, is then visualized by SPECT. 123I-Ioflupane uptake is reduced 50-70% in patients with early PD. In addition to cardinal motor symptoms, PD is characterized by a large number of "non-motor" symptoms (NMS), which add to the overall morbidity burden. Importantly, non--motor features may precede the diagnosis of PD, sometimes by several years. They include autonomic (gastrointestinal dysfunction, cardiovascular dysfunction with orthostatic hypotension (OH), urinary and sexual dysfunction, and hyperhidrosis), sleep (impaired sleep initiation and maintenance, rapid eye movement behavior disorder (RBD), sleep apnea and excessive daytime sleepiness), sensory (pain, hyposmia, and visual dysfunction), and neuropsychiatric disturbances (anhedonia, apathy, anxiety, depression, panic attacks, dementia, and psychosis). Among NMS, cardiac dysautonomia is a common feature of PD, manifesting in 30% of patients as orthostatic hypotension, a symptom that is correlated to disease duration and severity. Cardiac sympathetic innervation (CSI) is also affected in PD and other synucleinopathies. Lewy Body (LB) pathology, widely considered a marker of PD when detected in the SNpc, is also found in the sinoatrial nodal ganglion and myocardium of PD patients at autopsy. Despite the high prevalence of both conditions, the relationship between CSI impairment and cardiac dysautonomia is still poorly understood. Iodine-123 meta-iodobenzylguanidine (123I-MIBG) is an inactive physiological analogue that mimics the kinetics of norepinephrine (NE) and competes with NE for active cardiac uptake into the postganglionic sympathetic nerve terminal, where it is stored into granules by NE transport proteins. 123I-MIBG myocardial scintigraphy, an accepted measure of CSI, is abnormal in PD patients, with a characteristic reduction of Heart/Mediastinum (H/M) ratio (early and late uptake) and an increased Washout Rate (WR). 123I-MIBG uptake impairment is specific to PD and other synucleinopathies and can be used to differentiate PD and dementia with Lewy bodies (DLB) from other disorders with similar neurological phenomenology such as multiple system atrophy (MSA), progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD). 123I-MIBG uptake deficit in PD is attributed to cardiac sympathetic denervation, based on neuropathological studies using tyrosine hydroxylase (TH) immunostaining in epicardial nerves. There is evidence of alpha-synuclein aggregation in the epicardial nerve fascicles - the distal axons of the cardiac sympathetic nerve - in subjects with incidental Lewy Body Disease (ILBD) at stage 2 or 3 of Braak staging with preserved TH immunoreactive axons, suggesting a preliminary stage in the development of cardiac sympathetic denervation. However, while 123I-MIBG myocardial scintigraphy abnormalities have been correlated with pre-motor symptoms like RBD, hyposmia and constipation, there is no pathological evidence of cardiac sympathetic denervation in subjects with signs of 123I-MIBG myocardial scintigraphy abnormality and recognized pre-motor symptoms of PD. Finally, despite the specific association with PD diagnosis, the relationship between CSI impairment and nigrostriatal degeneration is poorly understood. Two studies found a strong correlation between nigrostriatal dopaminergic degeneration, as measured by 123I Ioflupane SPECT, and CSI impairment at different stages of disease. 123I-MIBG uptake deficits have been correlated with the progression of the disease. Interestingly, CSI - and therefore 123I-MIBG cardiac uptake - is impaired in other chronic conditions such as Heart Failure (HF), Hypertension, Diabetes Mellitus, Chronic Obstructive Pulmonary Disease and Sleep Apnea, with an identical pattern of abnormality as the one detected in PD patients. As opposed to cardiac sympathetic denervation, 123I-MIBG cardiac uptake impairment in these chronic conditions - and in particular HF - is explained with the hyperactivity of the sympathetic nervous system (SNS) acting as compensatory mechanism related to specific organ failure (i.e. post-ischemic/idiopathic heart failure). In fact, 123I-MIBG cardiac uptake is of prognostic value and can be used to stratify HF patients at risk for ventricular arrhythmias and sudden death. By reducing SNS hyperactivity, chronic treatment with beta-blockers improves 123I-MIBG cardiac uptake and reduces mortality in patients with HF. Many recognizable triggers for PD appear to be associated with increased sympathetic tone, including most notably brain traumatic injuries, but also microbiota perturbations, air pollution, heavy metals like iron and manganese, and finally aging itself. In addition, there is reason to believe that SNS overactivity might trigger the principal pre-motor symptoms of PD, including hyposmia, constipation and RBD. Finally, SNS overactivity typically drives reduced low-frequency heart rate variability (HRV), another clinical sign associated with pre-motor - particularly RBD - and early PD. Interestingly, low delayed uptake and high washout rate, the 123I-MIBG scintigraphy indices of increased adrenergic drive, are typically described in PD patients. Based on these considerations, the investigators hypothesize that 123I-MIBG cardiac impairment in neurodegenerative disease shares the same pathophysiology of other chronic conditions like HF, at least in the very early, pre-motor stages of development. Therefore, treatment of SNS hyperactivity with adrenergic blockers will improve cardiac sympathetic denervation in PD patients, providing evidence that this process is reversible. If this is true, the early detection of 123I-MIBG cardiac impairment in PD, particularly in the pre-motor phase, might create a considerable window of opportunity for treatment with adrenergic blockers - or similar compounds able to reduce SNS hyperactivity - which may result in long-term benefit such as delaying the neurodegenerative process and the onset of neurological symptoms. This may be documented and monitored using nigrostriatal dopaminergic scintigraphy (DAT scan), a strategy that would implement a dual imaging algorithm to provide early and viable biomarkers of the neurodegenerative process. Among adrenergic blockers, carvedilol is particularly well-suited to block impaired sympathetic over-activation in virtue of several effects on the adrenoceptors, including β-1 and β-2 adrenergic blockade and α-1 adrenergic blockade, in addition to antioxidant activity, L-type calcium channel blockade, and inhibition of stress-activated protein kinase. Absorption of current oral formulations of carvedilol is typically rapid and complete, with an average elimination half -life of about 8 hours. The high lipophilic structure of carvedilol makes it one of the beta-blockers most readily crossing the blood brain barrier. Carvedilol is associated with greater reduction of sympathetic activity, as measured by 123I-MIBG myocardial uptake, than metoprolol and other selective beta-blockers. In addition, due to its α-1 adrenergic blockade properties, carvedilol may exert beneficial effects on olfactory dysfunction and insulin resistance, two abnormalities frequently associated with the neurodegenerative process in PD. Adrenergic blockers have been associated with sleep disturbances including RBD, although the latter is based on isolated anecdotal reports. The negative effect of beta-blockers on sleep quality and duration appears to be related with the suppression of night time levels of melatonin. Interestingly however, carvedilol is not associated with melatonin suppression. The purpose of this pilot study is to investigate the effect of treatment with the adrenergic blocker carvedilol on 123I-MIBG myocardial uptake in a population of subjects with defined pre-motor PD risks (i.e. hyposmia and RBD) and abnormal baseline 123I-MIBG uptake, with or without 123I-Ioflupane uptake abnormality or PD motor symptoms. Scintigraphic changes will be correlated to motor and non-motor severity of PD, measured by validated clinical scales and cardiac autonomic function tests.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
REM Sleep Behavior Disorder, Pre-motor Parkinson Disease, Symptomatic Parkinson Disease
Keywords
Early Parkinson Disease, REM Sleep Behaviour Disorder (RBD), carvedilol, Autonomic dysfunction, Neurodegeneration

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Single Group Assignment
Model Description
Treatment: carvedilol titration; Experimental treatment with carvedilol will be offered at stabilized medical treatment. The dosage of carvedilol will be gradually increased from the initial recommended starting dose of 3.125mg twice daily and will be doubled every week according to patient tolerability, as measured by subjective complaints, arterial blood pressure and heart rate. The target dose will be 25mg twice daily (50 mg/day). Subjects that cannot tolerate the 50 mg daily dose, will be offered to continue at the 25 mg daily dose.
Masking
None (Open Label)
Allocation
N/A
Enrollment
15 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
carvedilol therapy
Arm Type
Experimental
Arm Description
The dosage of carvedilol will be gradually increased from the initial recommended starting dose of 3.125 mg twice/daily, the target dose will be 25mg twice daily (50 mg/day) and participants will take 50 mg/day carvedilol for 6 months.Subjects that cannot tolerate the 50 mg daily dose, will be offered to continue at the 25 mg daily dose.
Intervention Type
Drug
Intervention Name(s)
Carvedilol
Other Intervention Name(s)
Coreg
Intervention Description
At the end of Baseline visit, carvedilol 3.125 twice daily will be initiated and maintained for 1 week, increased to 6.25twice daily (dispensed at week 1visit), to 12.5mg twice daily (dispensed at week 2) and a max dose of 25mg twice daily (dispensed at week 4 visit), as tolerated. A subject that cannot tolerate at least a 25 mg daily dose will be excluded from the study. Subjects that cannot tolerate the 50 mg daily dose, will be offered to continue at the 25 mg daily dose. The project will include a washout period at study end.
Primary Outcome Measure Information:
Title
123I-MIBG reuptake changes
Description
123I-MIBG reuptake will be measured by early and late Heart to Mediastinal ratio (H/M) and Washout ratio (WR) which will be calculated using the following formula: [(early heart counts/pixel - early mediastinum counts/pixel) - (late heart counts/pixel decay-corrected - late mediastinum counts/pixel decay-corrected)]/(early heart counts/pixel - early mediastinum counts/pixel). Care will be taken to exclude lung or liver from the myocardial and large vessels and lung from the mediastinum region of interest. MIBG abnormality cutoffs will be set for values of late H/M <2.2 and WR >30%.
Time Frame
30 weeks
Secondary Outcome Measure Information:
Title
Adverse Events frequency
Description
Safety will be monitored collecting the type and frequency of adverse events, including clinical symptoms, changes in vital signs, clinical laboratory measures and EKG abnormalities.
Time Frame
30 weeks
Title
Heart rate variability changes
Description
Twenty-four-hour Holter monitoring of all patients will be conducted at two points during the study: 1) After MIBG and prior to the administration of the study drug and 2) within one week of the end of the six-month treatment trial. Two-channel Holter recordings will obtained and analyzed on a commercially available scanner in the cardiac laboratory at Cedars Sinai Medical Center, according to published guidelines.
Time Frame
30 weeks
Other Pre-specified Outcome Measures:
Title
MDS-UPDRS part III changes
Description
The Movement disorder society-unified Parkinson's disease rating scale (MDS-UPDRS) Part III will be administered at baseline and 26 weeks after study medication titration. Each item of the MDS-UPDRS has a possible rating from 0 to 4, where 0 = normal, 1 = slight, 2 = mild, 3 = moderate, and 4 = severe.Clinical scales will be performed OFF medication in those subjects that might be receiving dopaminergic drugs
Time Frame
30 weeks
Title
Sleep changes as measured by REM Behavior Disorder questionnaire
Description
RBD questionnaire (RBDSQ) changes from Screening at 26 weeks after study drug titration
Time Frame
30 weeks
Title
Smell changes as measured by University of Pennsylvania Smell Identification Test (UPSIT)
Description
University of Pennsylvania Smell Identification Test (UPSIT) changes from screening at 26 weeks after study medication titration
Time Frame
30 weeks
Title
Constipation score changes using a questionnaire based on modified ROME III diagnostic criteria
Description
Functional constipation will be assessed at screening and at 26 weeks after study medication titration using a questionnaire based on modified ROME III diagnostic criteria, which focuses on symptoms including straining, lumpy or hard stools, sensation of incomplete evacuation, sensation of anorectal obstruction or blockage, manual maneuvers to facilitate evacuation, and two or fewer bowel movements per week. This questionnaire is based on a six item self-report measures with a three point summated rating scale. The total score has a range of 0 to 12, with scores > 4 identifying functional constipation.
Time Frame
30 weeks
Title
Color vision changes as measured by HRR Pseudochromatic Plates
Description
Color vision changes will be assessed using HRR Pseudochromatic Plates from screening at 26 weeks after study medication titration
Time Frame
30 weeks
Title
DAT scan Changes
Description
DaT/SPECT uptake at baseline will be quantified at baseline and 26 weeks after study medication titration
Time Frame
30 weeks
Title
Non-Motor Symptoms Scale (NMSS) changes
Description
The NMSS measures non-motor symptoms over the previous month. Each symptom is scored with respect to: Severity: 0 = None, 1 = Mild; 2 = Moderate; 3 = Severe and Frequency: 1 = Rarely (<1/wk); 2 = Often (1/wk); 3 = Frequent (several times per week); 4 = Very Frequent (daily or all the time).
Time Frame
30 weeks
Title
Scopa-AUT changes
Description
The SCOPA-AUT scale consists of 25 items assessing autonomic symptoms in the following regions: gastrointestinal (7), urinary (6), cardiovascular (3), thermoregulatory (4), pupillomotor (1), and sexual (2 items for men and 2 items for women) dysfunction.
Time Frame
30 weeks
Title
Peripheral insulin resistance changes
Description
Peripheral IR will be defined by testing for fasting plasma insulin (FPI), fasting plasma glucose (FPG) and glycated hemoglobin (HbA1c) from baseline at 26 weeks after study medication titration. HOMA index will be calculated by the formula: HOMA-IR = (FPI x FPG)/405. [A cutoff HOMA index of 2.0, equivalent to <50% sensitivity, will be used to define IR. Subjects were considered to have IR if they either had a HOMA≥2.0 and/or HbA1c≥5.7.
Time Frame
30 weeks
Title
Central insulin resistance changes
Description
Measures of insulin sensitivity in neuronal-origin enriched plasma EVs (central IR) will be used to test the association of changes in such sensitivity to changes in MIBG uptake and clinical scores from baseline to 26 weeks after carvedilol titration. For that purpose, plasma samples will be collected and stored and -80oC to allow for isolation of neuronal origin EVs at the completion of the study.
Time Frame
30 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
25 Years
Maximum Age & Unit of Time
85 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Male or female of age between 25 and 85 years at time of enrollment. Diagnosis of idiopathic REM sleep behavior disorder (iRBD) or Diagnosis of hyposmia. Diagnosis of RBD will be, established either as 'definite RBD' according to the criteria proposed by the International Classification of Sleep Disorders (ICSD)-2 [AASM, 2005] or 'probable RBD' following a score of 6 or higher in the RBD questionnaire (RBDSQ) with a score of at least 1 in subitems 6.1 to 6.4 of question 6. At least one of the following: Diagnosis of hyposmia. Diagnosis of hyposmia will be established as a University of Pennsylvania Smell Identification Test (UPSIT) score < 20th percentile for the individual's age group and sex. Functional constipation, assessed by a scores > 4 on a questionnaire based on modified ROME III diagnostic criteria. Color vision abnormality, as assessed using HRR Pseudoisochromatic Plates, in the absence of congenital dyschromatopsia. Symptoms of depression, as assessed by a Beck Depression Inventory (BDI) fast screen score >3 or concurrent use of antidepressant medications Abnormal 123I-MIBG myocardial scintigraphy, as defined by a Late H/M ratio < 2.2 and/or a WR >30%, with normal cardiac ejection fraction (LVEF >55%). Capacity to give informed consent Exclusion Criteria: Secondary Parkinsonism, including tardive Concurrent dementia defined by a score lower than 22 on the MoCA Concurrent severe depression defined by a BDI fast screen score greater than 13 Comorbidities related to SNS hyperactivity Heart failure (LVEF <45%) Recent myocardial revascularization (<12 weeks) Chronic Hypertension (SBP>140mmHg-DBP>90mmHg) Atrial fibrillation Diabetes mellitus COPD Sleep Apnea Severely reduced kidney function (Glomerular Filtration Rate<30ml/min) Contraindications to the use of carvedilol Asthma or bronchospasm Recent myocardial infarction (<48 h) Ongoing unstable angina Cardiogenic shock or prolonged hypotension Second or Third-Degree AV block Significant valvular aortic stenosis Obstructive cardiomyopathy, or constrictive pericarditis Symptomatic Bradycardia (HR<60) or Sick Sinus Syndrome Stroke within the past 1 month Severe Hepatic Dysfunction Allergy/hypersensitivity to iodine or study medication
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Michele L Gregorio, PhD
Phone
4243150016
Email
michele.gregorio@cshs.org
First Name & Middle Initial & Last Name or Official Title & Degree
Gloria Obialisi, MS
Phone
3104231704
Email
gloria.obialisi@cshs.org
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Michele Tagliati, MD
Organizational Affiliation
Cedars-Sinai Medical Center
Official's Role
Principal Investigator
Facility Information:
Facility Name
Cedars Sinai Medical Center
City
Los Angeles
State/Province
California
ZIP/Postal Code
90048
Country
United States
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Helia Maghzi, MD
Phone
310-423-6646

12. IPD Sharing Statement

Plan to Share IPD
No
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Adrenergic Blockers for Cardiac Changes in Early Parkinson's Disease (Protocol 53136)

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