Wearing Off Questionnaire (WOQ)
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WOQ is a self-report measure to screen for end-of-dose “wearing off” symptoms in patients with Parkinson’s Disease.

There are 3 available versions – WOQ-32, WOQ-19, and WOQ-9 – with translations available in 8 languages.


32-item Parkinson’s wearing off questionnaire.
Formats: Print/PDF, Web, App


19-item Parkinson’s wearing off questionnaire.
Formats: Print/PDF, Web, App


9-item Parkinson’s wearing off questionnaire.
Formats: Print/PDF, Web, App

Pattern Health is the exclusive licensor of WOQ-32, WOQ-19, and WOQ-9.

Request Information

Supported implementation options include:

1. Pattern’s eCOA solution.

Next-gen solution with WOQ-9, WOQ-19, and WOQ-32 pre-built and approved.

2. Third-party eCOA solution.

Custom option for those with an existing eCOA system.

3. Paper-based

The simple but effort-intensive option.

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About the Author
Dr. Mark A Stacy, MD

Dr. Mark Stacy was appointed Vice Dean for Clinical Research at duke in 2011 and had served as Associate Dean for Clinical Research since 2009. He has been a key driver in improving Duke’s clinical research practice and in developing the site-based research director community. His is responsible for the implementation of programs to support the clinical research mission, and oversight of the Institutional Review Board (IRB), conflict of interest (COI), and clinical research administration activities.

Dr. Stacy joined Duke in 2003, and is a professor of medicine in the Division of Neurology, and director of the Duke Movement Disorders Center. He served as director of the Neurology Clinical Research Organization prior to moving to the Dean’s Office. His clinical and research interests are concentrated on signs, symptoms and treatment of Parkinson’s disease, specifically: motor and non-motor symptoms of wearing off, pathological gambling and other impulse-control disorders, and placebo effect in clinical trials. He has served as an advisor to a number of pharmaceutical and device manufacturers that lead to the approval of products to better treat this condition, and has participated in more than 100 clinical trials.

Dr. Stacy also serves as advisor and consultant on numerous national and community committees, including WE MOVE, the Parkinson Study Group, the Dystonia Study Group, the National Parkinson Foundation, and the American Academy of Neurology. Prior to his arrival at Duke he served as the director of the Muhammad Ali Parkinson Research Center in Phoenix, Arizona. He is the co-editor of Moving Along, the newsletter of the Movement Disorders Society. He has published numerous peer-reviewed manuscripts, book chapters, and review articles on the topics of Parkinson’s disease, dystonia, tremor, and other movement disorders. He is also the editor of The Handbook of Dystonia.