About this trial

ARTFL LEFFTDS Longitudinal Frontotemporal Lobar Degeneration (ALLFTD) represents the formalized integration of ARTFL (U54 NS092089; funded through 2019) and LEFFTDS (U01 AG045390; funded through 2019) as a single North American research consortium to study FTLD for 2019 and beyond.

Eligibility criteria

Qualifiers

members of families in whom at least one member has a known disease-associated mutation in one of the major genes that cause f-FTLD: MAPT, GRN, C9orf72 (or other rare genes)

an autosomal dominant family history of a FTLD syndrome (without a known gene) verified by medical record review or well-documented family history including family members with a medical history consistent with FTLD or a related disorder.

Progressive Supranuclear Palsy (PSP)

Semantic variant Primary Progressive Aphasia (svPPA)

Disqualifiers

Known presence of a structural brain lesion (e.g. tumor, cortical infarct) that could reasonably explain symptoms in a symptomatic participant.

Known presence of an Alzheimer's disease causing mutation in PSEN1, PSEN2 or APP; or biomarker evidence for Alzheimer's disease as a cause of the clinical syndrome.

A previous history of Korsakoff encephalopathy, severe alcohol dependence (within 5 years of onset of dementia), frequent alcohol or other substance intoxication, or other neurological disorder.

Evidence through history or laboratory testing of uncorrected B12 deficiency (B12 < 95% of local laboratory's normal value), unregulated hypothyroidism (TSH >150% of normal), HIV positive, renal failure (creatinine > 2), liver failure (ALT or AST > two times normal), respiratory failure that requires supplemental oxygen, large confluent white matter lesions, significant systemic medical illnesses such as deteriorating cardiovascular disease.

Trial design

Treatments tested in this trial

  • Not listed

Trial groups

2,100 Participants
are grouped into 2 trial groups

Locations

27
Canada
University of British Columbia VancouverBritish Columbia, Canada
University of Toronto TorontoOntario, Canada
United States
Alabama
University of Alabama Birmingham35233, Birmingham United States
California
University of California, Los Angeles90095, Los Angeles United States

Sponsors and collaborators

Mayo Clinic

Lead sponsor

University of California, San Francisco

Collaborator

National Institute on Aging (NIA)

Collaborator

National Institute of Neurological Disorders and Stroke (NINDS)

Collaborator