A Phase 3 Study to Evaluate Efficacy and Safety of AL001 in Frontotemporal Dementia (INFRONT-3)

Open to people ages 18-85

• Persons with a progranulin gene mutation and at risk of developing FTD symptoms as evidenced by a biomarker, or persons with a progranulin gene mutation and diagnosed with FTD.
• If symptomatic, one of the criteria for the diagnosis of probable behavioral variant FTD, or FTD-semantic subtype or FTD-Progressive nonfluent aphasia.
• Study partner who consents to study participation and who cares for/visits the participant daily for at least 5 hours per week.
• Written informed consent must be obtained and documented (from the participant or, where jurisdictions allow it, from their legal decision maker).

• Dementia due to a condition other than FTD including, but not limited to, Alzheimer's disease, Parkinson's disease, dementia with Lewy bodies, Huntington disease, or vascular dementia.
• Known history of severe allergic, anaphylactic, or other hypersensitivity reactions to chimeric, human, or humanized antibodies or fusion proteins.
• Current uncontrolled hypertension, diabetes mellitus or thyroid disease. Clinically significant heart disease, liver disease or kidney disease. History or evidence of clinically significant brain disease other than FTD.
• Females who are pregnant or breastfeeding, or planning to conceive within the study period.
• Any experimental vaccine or gene therapy.
• History of unresolved cancer.
• Current use of anticoagulant medications (e.g., coumadin, heparinoids, apixaban).
• Residence in a skilled nursing facility, convalescent home, or long term care facility at screening; or requires continuous nursing care.