Tics are sudden, rapid, non-rhytmic, repetitive, motor movements or vocalizations. The mean age of onset is approximately 5 years old.
Tourette's syndrome is the most common form of tic disorder.
There is a strong genetic component showing a 10- to 100-fold increase
in the rates of tics and Tourette's syndrome among first-degree
relatives of Tourette's syndrome patients.
Simple motor tics are restricted to a single or a few muscle groups and last less than a fraction of a second.
Complex motor tics involve larger muscle groups, usually last longer and appear purposeful and goal-directed.
While aducanumab significantly reduced clinical decline in individuals with early Alzheimer's disease (AD) in one randomized trial, no changes were seen in another identical study — rendering the role of aducanumab in AD inconclusive.
Consistent with the overall outcome of the phase III EF-14 study, elderly patients with newly diagnosed glioblastoma multiforme (GBM) treated with tumour-treating fields (TTFields) and temozolomide (TMZ) showed significantly better overall survival (OS) vs patients on TMZ alone, according to a post-hoc analysis presented at the American Association for cancer Research (AACR) 2020 Virtual Annual Meeting II.