Thank you for your participation @IAPRD 2024 in Lisbon! See event photos.

Parkinsonism & Related Disorders

Official Journal of the IAPRD

Editor-in-Chief Hubert Fernandez

Featuring basic and clinical research contributing to the understanding, diagnosis, and treatment of all neurodegenerative syndromes in which parkinsonism, essential tremor, or related movement disorders may be a feature. IAPRD members receive complimentary access.

Clinical Parkinsonism & Related Disorders

New companion journal to PRD

Editors-in-Chief Huifang Shang and Daniel Truong

An online-only, open-access journal committed to publishing high-quality peer-reviewed articles related to clinical aspects of movement disorders, including treatment, investigative reports, and phenomenology.

Featured articles in PRD and CPRD journals

While gastrointestinal (GI) symptoms may start years before the onset of motor symptoms and impair quality of life and response to PD medications, robust clinical trial data is lacking to guide screening, diagnosis and treatment of GI dysfunction in PD. In this consensus practice recommendations from five movement disorder neurologists and two gastroenterologists, both experts in GI dysmotility and its impact on PD symptoms, the authors cover all parts of the GI system, from the oral cavity to the anorectum. A must read to improve the management of your PD patients!

Genetic markers have been instrumental in our pursuit to fully understand Parkinson disease (PD), and “surgicogenomics” offers a promising new approach to further improve our decision-making for deep brain stimulation (DBS).  This is a retrospective single-center case-control study involving a total of 103 PD patients who were carriers of a GBA1 variant, the LRRK2 p.G2019S variant, or non-carriers. All participants underwent DBS and were followed up for at least a year, with assessments up to 10 years post-DBS. So, did a LRRK2 or GBA1 variant status affect the motor outcomes of DBS in PD patients? Read on to find the answer.

In this retrospective review, the authors review the efficacy of botulinum toxin therapy in Parkinson disease-related lower limb dystonia and its impact on disability at a mean follow up of 2 years.

Melvin Yahr Parkinson’s Disease Clinical Research Award

The IAPRD and Parkinson’s Foundation congratulate Heba Deraz, MD

Winner of the 2024 Melvin Yahr Parkinson’s Disease Clinical Research Award

Optimizing blood pressure to improve outcomes in patients with Parkinson's Disease:
Fewer orthostatic hypotension episodes at the expense of more supine hypertension?

Congratulations to the IAPRD 2024 Young Investigator Award Winners

Winners will present their studies at the 28th IAPRD Congress in Chicago, 13-16 May 2023 Mead, WA – May 10, 2023: The International Association of Parkinsonism and Related Disorders (IAPRD) recognizes three Young Investigators for their outstanding research in the field:

“These young investigators are performing cutting-edge research in Parkinson’s disease and dystonia that we are pleased to showcase at our Chicago meeting,” noted Dr. Mary Ann Chapman, Executive Director of the IAPRD.

Dr. Lin will present the results of her large cohort study of the AOPEP gene, a novel causative gene of autosomal recessive dystonia. Dystonia is a neurological condition of involuntary muscular contractions that lead to repetitive or twisting movements often of the neck or limbs. Mr. Royton will present the results of his study on postural control in Parkinson’s disease, focusing on the staging of postural control changes over the course of the disease. Dr. Torres Ballesteros will describe the results of her study on deep brain stimulation in Parkinson’s disease, and specifically the use of image-guided programming to help improve patient responses.

The International Association of Parkinsonism and Related Disorders (IAPRD) is a non-profit professional association dedicated to promoting education and research in parkinsonism and related disorders. The IAPRD’s 28th World Congress will take place in Chicago at the McCormick Place Congress Center from 13-16 May 2023. Visit for more information.

Contact: Mary Ann Chapman, Executive Director;; 509-939-4339