Late-Breaking Abstracts will be considered for presentation and publication at the 6th Pan American Parkinson’s Disease and Movement Disorders Congress in Houston, TX, USA if they fulfill the following criteria:

1) The topic must be of critical importance to the clinical/scientific community and/or the public.

2) The abstract must report data that became available for public dissemination only after the deadline of the regular abstract submission (October 15, 2025) and has not been previously published or presented.

3) The study and results reported should be novel (not simply an extension of previously published work) or be definitive if confirming or refuting other critically important work.

4) The following categories are typically suited to the main poster sessions and will not be considered for Late-Breaking Abstracts: case reports, qualitative surveys, reviews of existing treatments, practice reviews, rating scale validation, small confirmatory studies, small scale epidemiology studies and research proposals.

5) The Late-Breaking Abstract program is not designed to favor investigators who inadvertently missed the deadline for regular abstract submission.

Late-Breaking Abstract Submission Instructions:

- The deadline to submit a Late-Breaking Abstract is December 10, 2025 (11:59 pm CST). Deadline extension requests will not be granted. Acceptance notifications will be sent via e-mail to the submitting author by January.

- MDS Members and non-members are eligible to submit abstracts.

- All eligible submissions must meet the criteria noted in this form.

- All abstract submissions must be written and presented in English. Please be mindful to write out acronyms and avoid using special characters and/or symbols when submitting your abstract.

- There is no fee to submit an abstract. All abstract presenters are required to register for the 2026 PAS Congress and pay applicable registration fees.

- The presenter can be any of the contributing authors or a colleague.

- Eligible submissions cannot have been previously published. Abstracts presented at another meeting or forum must not have been published and must contain the meeting name and date cited accordingly. All submissions are entered into an online plagiarism software, and any previously published abstracts will not be accepted.

Notice:
MDS only accepts original work. By submitting your abstract, you affirm that your abstract is your own, either individually or of a group. Should plagiarism be detected, the abstract will be rejected.

For any questions or concerns, please contact the MDS International Secretariat at pascongress@movementdisorders.org.

Please carefully read and acknowledge the following information prior to submitting your Late-Breaking Abstract: 

Abstracts that have been presented at other meetings may be submitted if they have not been published and if the meeting name and date are cited accordingly. 

If you are unsure if you have applied for and/or received permission to use a rating scale owned by MDS, please complete your submission and an MDS Staff Member will follow up with you. If you have any questions please use this link for more information on obtaining permission for MDS owned rating scales, or contact info@movementdisorders.org. 

All information provided in the 'Abstract Content' section of the submission form will appear on your final submission and abstract publication (if accepted). Please be sure to check your entry carefully for spelling and accuracy as it cannot be edited after the form has been submitted to MDS. 

Please attempt to limit your abstract content to 2,500 characters or less (including spaces). 

Additional Authors

Note: the author listing will appear in the order in which it is entered. 

STOP! Please review your data carefully as changes cannot be made to your submission once your abstract has been received. It is recommended that you print this form for review prior to submitting. Thank you.