MASA syndrome
MONDO:0010559MASA syndrome (Mental retardation, Aphasia, Spastic paraplegia, Adducted thumbs) is a historical term used to describe a phenotype now considered to be part of the X-linked L1 clinical spectrum (L1 syndrome). MASA is characterized by mild to moderate intellectual deficit, delayed development of speech, hypotonia progressing to spasticity or spastic paraplegia, adducted thumbs, and mild to moderate distension of the cerebral ventricles.
Also known as: Gareis-Mason syndrome, MASA syndrome, intellectual disability-aphasia-shuffling gait-adducted thumbs syndrome, masa syndrome, X-linked recessive, spastic paraplegia, X-linked, CRASH syndrome, CRASH syndrome, X-linked recessive, Clasped thumb and intellectual disability
14 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsBroader categories
-
Could a zapping cap boost memory? small study tests brain stimulation for cognitive decline
Symptom relief Not yet recruitingThis pilot study will test whether a non-invasive brain stimulation technique called transcranial alternating current stimulation (tACS) can improve working memory in 30 adults with mild cognitive impairment or traumatic brain injury. Participants will receive low-level electrica…
Phase: NA • Sponsor: Sunnybrook Health Sciences Centre • Aim: Symptom relief
Last updated Jun 27, 2026 12:28 UTC
-
Gene therapy readiness check: new study maps virus immunity in muscle disease patients
Knowledge-focused Not yet recruitingThis study will test blood samples from 450 people aged 6 to 60 with inherited neuromuscular diseases to see if they have antibodies that could block gene therapy viruses (AAVs). The goal is to understand how common these antibodies are and which patients might be good candidates…
Phase: NA • Sponsor: Genethon • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:04 UTC