The purpose of the study is to determine whether treatment with isradipine is effective in
slowing the progression of Parkinson disease disability.
Minimum age: 30 Years.
Maximum age: N/A.
Gender(s): Both.
Inclusion Criteria:
- Subjects with early idiopathic PD (presence of at least two out of three cardinal
manifestations of PD). If tremor is not present, subjects must have unilateral onset
and persistent asymmetry of the symptoms
- Age equal or greater than 30 years at the time of diagnosis of PD
- Hoehn and Yahr stage less than or equal to 2
- Diagnosis of PD less than 3 years.
- Currently NOT receiving dopaminergic therapy (levodopa, dopamine agonist or MAO-B
inhibitors) and NOT projected to require PD symptomatic therapy for at least 3 months
from the baseline visit
- Use of amantadine and/or anticholinergics will be allowed provided that the dose is
stable for 8 weeks prior to the baseline visit
- If subject is taking any central nervous system acting medications (e. g.,
benzodiazepines, antidepressants, hypnotics) regimen must be stable for 30 days prior
to the baseline visit
- Women of childbearing potential may enroll but must use a reliable measure of
contraception and have a negative serum pregnancy test at the screening visit
Exclusion Criteria:
- Subjects with a diagnosis of an atypical Parkinsonism
- Subjects unwilling or unable to give informed consent
- Exposure to dopaminergic PD therapy within 60 days prior to baseline visit or for
consecutive 3 months or more at any point in the past
- History of clinically significant orthostatic hypotension or presence of orthostatic
hypotension at the screening or baseline visit defined as greater than or equal to 20
mmHg change in systolic BP and greater than or equal to 10 mmHg change in diastolic
BP from sitting position to standing after 2 minutes, or baseline sitting BP less
than 90/60
- History of congestive heart failure
- Clinically significant bradycardia
- Presence of 2nd or 3rd degree atrioventricular block or other significant ECG
abnormalities that in the investigator's opinion would compromise participation in
study
- Clinically significant abnormalities in the Screening Visit laboratory studies or ECG
- Presence of other known medical or psychiatric comorbidity that in the investigator's
opinion would compromise participation in the study
- Prior exposure to isradipine or other dihydropyridine calcium channel blockers
within 6 months of the baseline visit
- Subjects on greater than 2 concomitant antihypertensive medications. If a history of
hypertension, then a maximum of 2 other antihypertensive agents will be allowed
provided that the dosages of concomitant anti HTN therapy can be reduced/adjusted
during the study based on the BP readings in consultation with the subject's primary
care provider or cardiologist. Use of any concomitant calcium channel blockers will
not be allowed from the baseline visit and for the duration of the study
- Use of grapefruit juice, ginkgo biloba, St. John's wort or ginseng will be prohibited
starting from the screening visit and for the duration of the study (as they
interfere with the metabolism of isradipine)
- Use of clarithromycin, telithromycin and erythromycin will be prohibited starting
from the screening visit and for the duration of the study as the combination of
clarithromycin, telithromycin or erythromycin and calcium channel blockers has been
reported to be associated with increased risk of kidney and heart injury
- Presence of cognitive dysfunction defined by a Montreal Cognitive assessment (MoCA)
score of less than 26 at screening
- Subjects with clinically significant depression as determined by a Beck Depression
Inventory II (BDI) score greater than 15 at the screening visit
- History of exposure to typical or atypical antipsychotics or other dopamine blocking
agents within 6 months prior to the baseline visit
- History of use of an investigational drug within 30 days prior to the screening visit
- History of brain surgery for PD
- Allergy/sensitivity to isradipine or its matching placebo or their formulations
- Pregnant or lactating woman
STEADY-PD III Coordinator, Phone: 855-825-3390, Email: steadypd3@urmc.rochester.edu
University of Alabama at Birmingham, Birmingham, Alabama 35233, United States; Recruiting
Jeff Worrell, Phone: 205-996-4034, Email: jworrell@uab.edu
Natividad Stover, MD, Principal Investigator
University of Calgary, Calgary, Alberta T2N 4Z6, Canada; Recruiting
Lorelei Tainish, Phone: 403-220-8413, Email: derwent@ucalgary.ca
Ranjit Ranawaya, MD, Principal Investigator
University of Alberta Hospital, Edmonton, Alberta t6g 2g3, Canada; Recruiting
Paul McCann, Phone: 780-407-1614, Email: paul.mccann@albertahealthservices.ca
Oksana Suchowersky, MD, Principal Investigator
Banner Sun Health Research Institute, Sun City, Arizona 85315, United States; Recruiting
Molly Goddard, Phone: 623-832-5726, Email: molly.goddard@bannerhealth.com
Holly Shill, MD, Principal Investigator
The Parkinsons & Movement Disorder Institute, Fountain Valley, California 92708, United States; Recruiting
Rosie Magallon, Phone: 714-378-5021, Email: rmagallon@pmdi.org
Daniel D Truong, MD, Principal Investigator
University of California, Irvine, California 92697, United States; Recruiting
Katrina Samson, Phone: 949-824-3485, Email: samsonk@uci.edu
Neal Hermanowicz, MD, Principal Investigator
University of California, San Diego, San Diego, California 92093, United States; Recruiting
Robin Ellam, Phone: 858-822-5751, Email: rellam@ucsd.edu
Irene Litvan, MD, Principal Investigator
University of California, San Francisco, San Francisco, California 94143, United States; Recruiting
Ariane Marcus, Phone: 415-502-1672, Email: ariane.marcus@ucsf.edu
Chadwick Christine, MD, Principal Investigator
Rocky Mountain Movement Disorders Center, Englewood, Colorado 80113, United States; Recruiting
Breanna Nickels, Phone: 303-357-5445, Email: nickels@kumarneuro.com
Rajeev Kumar, MD, Principal Investigator
Eastern Connecticut Neurology Specialists, Manchester, Connecticut 06040, United States; Recruiting
Sheila Thurlow, Phone: 860-647-7831, Email: thurlow@uchc.edu
Antonelle J DeMarcaida, MD, Principal Investigator
Institute of Neurodegenerative Disorders, New Haven, Connecticut 06510, United States; Recruiting
Meghan Pajonas, Phone: 203-508-1506, Email: info@indd.org
David Russell, MD PHD, Principal Investigator
University of Miami, Miami, Florida 33136, United States; Recruiting
Nathalie Padron, Phone: 305-243-3530, Email: npadron@med.miami.edu
Corneliu Luca, MD, Principal Investigator
University of South Florida, Tampa, Florida 33613, United States; Recruiting
Claudia Rocha, Phone: 813-396-0757, Email: Crocha1@health.usf.edu
Deborah Burke, MD, Principal Investigator
Cleveland Clinic Florida-Weston, Weston, Florida 33331, United States; Recruiting
Pamela Lackner, Phone: 954-659-6843, Email: lacknep@ccf.org
Nestor Galvez-Jimenez, MD, Principal Investigator
Emory University, Atlanta, Georgia 30329, United States; Recruiting
Becky McMurray, Phone: 404-728-6427, Email: rmcmurr@emory.edu
Marian Evatt, MD, Principal Investigator
Pacific Health Research & Education Institute, Honolulu, Hawaii 96819, United States; Recruiting
Stephanie Terashita, Phone: 808-636-0681, Email: stephanie.terashita@va.gov
G. Webster Ross, MD, Principal Investigator
Northwestern University, Chicago, Illinois 60611, United States; Recruiting
Karen Williams, Phone: 312-503-5645, Email: k-williams8@northwestern.edu
Cindy Zadikoff, MD FRCPC, Principal Investigator
Rush University Medical Center, Chicago, Illinois 60612, United States; Recruiting
Lucia Blasucci, Phone: 312-563-2184, Email: Lucia_m_blasucci@rush.edu
Katie Kompoliti, MD, Principal Investigator
University of Kentucky Medical Center, Lexington, Kentucky 40536, United States; Recruiting
Renee Wagner, Phone: 859-323-0028, Email: renee.wagner@uky.edu
John T Slevin, MD, Principal Investigator
LSU Health Science Center, Shreveport, Louisiana 71103, United States; Recruiting
Richard Zweig, Phone: 318-675-5683, Email: rzweig@lsuhsc.edu
RIchard Zweig, MD, Principal Investigator
Johns Hopkins University, Baltimore, Maryland 21287, United States; Recruiting
Becky Dunlop, Phone: 410-955-8795, Email: rdunlop@jhmi.edu
Kelly Mills, MD, Principal Investigator
University of Maryland, Baltimore, Maryland 21201, United States; Recruiting
Samantha Gibson, Phone: 410-328-4349, Email: sagibson@som.umaryland.edu
Melissa Armstrong, MD, Principal Investigator
Boston University Medical Center, Boston, Massachusetts 02118, United States; Recruiting
Cathi-Ann Thomas, Phone: 617-638-7737, Email: neurocat@bu.edu
Marie H Saint-Hilaire, MD, Principal Investigator
Massachusetts General Hospital, Boston, Massachusetts 02114, United States; Recruiting
Grace Bwala, Phone: 617-643-0654, Email: gbwala@partners.org
Albert Hung, MD PHD, Principal Investigator
Massachusetts General Hospital, Boston, Massachusetts 02114, United States; Recruiting
Grace Bwala, Phone: 617-643-0654
Albert Hung, MD PHD, Principal Investigator
University of Michigan, Ann Arbor, Michigan 48109, United States; Recruiting
Jamie Miller, Phone: 734-936-4817, Email: jamieann@med.umich.edu
Kelvin Chou, MD, Principal Investigator
Michigan State University, East Lansing, Michigan 48824, United States; Recruiting
Doozie Russell, Phone: 517-884-2274, Email: doozie.russell@hc.msu.edu
John Goudreau, DO, Principal Investigator
Struthers Parkinson's Center, Golden Valley, Minnesota 55427, United States; Recruiting
Kathryn Duderstadt, Phone: 952-993-5903, Email: kathryn.duderstadt@parknicollet.com
Sotirios Parashos, MD PHD, Principal Investigator
University of Minnesota, Minneapolis, Minnesota 55414, United States; Recruiting
Susan Rolandelli, Phone: 612-624-7745, Email: cnru@umn.edu
Paul Tuite, MD, Principal Investigator
Washington University, St. Louis, Missouri 63110, United States; Recruiting
Laura Rundell, Phone: 314-362-3372, Email: rundelll@neuro.wustl.edu
Brad A. Racette, MD, Principal Investigator
Nebraska Medical Center, Omaha, Nebraska 68198, United States; Recruiting
Carolyn Peterson, Phone: 402-552-2239, Email: carolyn.peterson@unmc.edu
John M Bertoni, MD PHD, Principal Investigator
University of Nevada School of Medicine, Las Vegas, Nevada 89102, United States; Recruiting
Shamine Poynor, Phone: 702-671-5093, Email: spoynor@medicine.nevada.edu
Eric Farbman, MD, Principal Investigator
Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire 03756, United States; Recruiting
Polly Leblanc, Phone: 603-650-4411, Email: paulilne.r.leblanc@hitchcock.org
Stephen Lee, MD PHD, Principal Investigator
Atlantic Neuroscience Institute, Summit, New Jersey 07901, United States; Recruiting
Diane Babek, Phone: 908-598-7991, Email: diane.babek@atlantichealth.org
Roger Kurlan, MD, Principal Investigator
Health Quest Kingston, Kingston, New York 12401, United States; Recruiting
Cindy Miller, Phone: 845-331-5165, Ext: 1143, Email: cmiller6@health-quest.org
Fabio Danisi, MD, Principal Investigator
North Shore LIJ Health System, Manhasset, New York 11030, United States; Recruiting
Jean Ayan, Phone: 516-562-2426, Email: jayan@nshs.edu
Andrew Feigin, MD, Principal Investigator
Columbia University Medical Center, New York, New York 10032, United States; Recruiting
Amber Servi, Phone: 212-305-3938, Email: ads2178@cumc.columbia.edu
Cheryl Waters, MD, Principal Investigator
Weill Medical College of Cornell University, New York, New York 20021, United States; Recruiting
James Carter, Phone: 212-746-2474, Email: jac3003@med.cornell.edu
Alexander Shtilbans, MD PHD, Principal Investigator
University of Rochester, Rochester, New York 14618, United States; Recruiting
Ashley Owens, Phone: 585-341-7593, Email: ashley_owens@urmc.rochester.edu
Irene Richard, MD, Principal Investigator
University of Cincinnati, Cincinnati, Ohio 45267, United States; Recruiting
Hilary Perez, Phone: 513-558-0112, Email: hilary.perez@uc.edu
Alok Sahay, MD, Principal Investigator
The Cleveland Clinic Foundation, Cleveland, Ohio 44195, United States; Recruiting
Yvette Pitchford, Phone: 216-444-7513, Email: ellisy@ccf.org
Anwar Ahmed, MD, Principal Investigator
Ohio State University, Columbus, Ohio 43221, United States; Recruiting
Kate Ambrogi, Phone: 614-688-6685, Email: katherine.ambrogi@osumc.edu
Ariane Park, MD MPH, Principal Investigator
Ottawa Hospital Civic Site, Ottawa, Ontario K1Y 4E9, Canada; Recruiting
Jennifer Conway, Phone: 613-761-4583, Email: jeconway@toh.on.ca
Tiago Mestre, MD, Principal Investigator
Toronto Western Hospital, University Health Network, Toronto, Ontario M5T 2S8, Canada; Recruiting
Julie Racioppa, Phone: 416-603-5800, Ext: 2670, Email: julie.racioppa@uhnresearch.ca
Connie Marras, MD, Principal Investigator
Oregon Health & Science University, Portland, Oregon 97239, United States; Recruiting
Kellie Keith, Phone: 503-494-9531, Email: keithk@ohsu.edu
Matthew Brodsky, MD, Principal Investigator
Milton S Hershey Medical Center, Hershey, Pennsylvania 17033, United States; Recruiting
Trang Doan, Phone: 717-531-0003, Ext: 287693, Email: tdoan@hmc.psu.edu
Thyagarajan Subramanian, MD, Principal Investigator
University of Pennsylvania, Philadelphia, Pennsylvania 19107, United States; Recruiting
Jeana LaBrie, Phone: 215-829-3582, Email: jeana.labrie@uphs.upenn.edu
Andres Deik, MD, Principal Investigator
CHUM - Hopital Notre-Dame, Montreal, Quebec H2L 4M1, Canada; Recruiting
Monica Beland, Phone: 514-890-8000, Ext: 26512, Email: Monica.beland.chum@ssss.gouv.qc.ca
Michel Panisset, MD, Principal Investigator
Centre Hospitalier Affilie, Quebec City, Quebec G1J 1Z4, Canada; Recruiting
Caroline Tremblay, Phone: 418-649-0252, Ext: 1516, Email: tremblay.caroline@crchudequebec.ulaval.ca
Melanie Langlois, MD
Medical University of South Carolina, Charleston, South Carolina 29401, United States; Recruiting
Shonna Jenkins, Phone: 845-792-9115, Email: jenkinsho@musc.edu
Vanessa Hinson, MD PHD, Principal Investigator
University of Texas Health Science Center, Houston, Texas 77030, United States; Recruiting
Vicki Ephron, Phone: 713-704-6861, Email: vicki.j.ephron@uth.tmc.edu
Mya C Schiess, MD, Principal Investigator
University of Utah, Salt Lake City, Utah 84108, United States; Recruiting
Alissa Davis, Phone: 801-587-8581, Email: alissa.davis@hsc.utah.edu
David Shprecher, DO, Principal Investigator
University of Virginia, Charlottesville, Virginia 22903, United States; Recruiting
Allison Mann, Phone: 434-924-0453, Email: adm4g@virginia.edu
Binit Shah, MD, Principal Investigator
Sentara Neurology Specialists, Virginia Beach, Virginia 23456, United States; Recruiting
Lisa Richardson, Phone: 757-507-0642, Email: lhrichar@sentara.com
Karen Thomas, DO, Principal Investigator
Booth Gardner Parkinson's Care Center, Kirkland, Washington 98034, United States; Recruiting
Cherissa Sia, Phone: 425-899-3126, Email: csia@evergreenhealthcare.org
Pinky Agarwal, MD, Principal Investigator
Medical College of Wisconsin, Milwaukee, Wisconsin 53226, United States; Recruiting
Lynn Wheeler, Phone: 414-805-9307, Email: lwheeler@mcw.edu
Karen Blindauer, MD, Principal Investigator