Alzheimer's Disease Dementia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Must meet all the clinical staging criteria for MCI due to AD (Stage 3) or mild AD dementia (Stage 4) according to the NIA-AA and must have the following at Screening Visit 1: - RBANS Delayed Memory Index score of = 0.5. 2. Evidence of amyloid pathology as measured by PET or CSF sampling.
Exclusion criteria
Exclusion criteria: 1. Known allergy to BIIB080 or a history of hypersensitivity to any of the inactive ingredients in the drug product . 2. Previous participation in this study or previous studies with BIIB080. 3. Use of non-disease-modifying AD medications (including but not limited to donepezil, rivastigmine, galantamine, and memantine) at doses that have not been stable for at least 8 weeks prior to Screening Visit 1 and during the screening period up to Study Day 1. 4. Prior participation in any active or passive immunotherapy study targeting amyloid beta, unless documentation of receipt of placebo is available. 5. Prior participation in any passive immunotherapy study targeting tau, unless the last administration occurred 6 months or 5 half-lives, whichever is sooner, prior to Screening or documentation of receipt of placebo is available. 6. Participation in any study involving an investigational treatment targeting tau that is not an immunotherapy, unless documentation of receipt of placebo is available. 7. Participation in a study of any other agent(s) [including gene therapy] not included in exclusion criteria 4, 5, and 6 with a purported disease-modifying effect in AD, unless documentation of receipt of placebo is available. 8. Current use or previous use of medications with a purported disease-modifying effect in AD, outside of investigational studies. 9. Any vaccination given within 10 days prior to Day -1. COVID-19 vaccinations using RNA or DNA technology are allowed during the study, as well as other types of immunization/vaccination/booster, except during the 10 days before and after clinic visits. 10. Contraindications to having a brain MRI (e.g., MRI-incompatible pacemaker; MRI incompatible aneurysm clips, artificial heart valves, or other metal foreign body; claustrophobia that cannot be medically managed). If the MRI compatibility of implanted devices is unknown, the participant must be excluded from the study. 11. Current enrollment or a plan to enroll in any interventional clinical study in which an investigational treatment or approved therapy for investigational use is administered within 52 weeks prior to the Baseline Visit.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Dose-response in change from Baseline to Week 76 on the CDR-SB | — |
Secondary
| Measure | Time frame |
|---|---|
| - Change from Baseline to Week 76 on the CDR-SB - Change from Baseline to Week 76 on the following: - ADCS-ADL-MCI - ADAS-Cog 13 - MMSE - Modified iADRS - ADCOMS - Incidence of treatment-emergent AEs and SAEs | — |
Countries
Australia, Belgium, Canada, Czech Republic, Denmark, Finland, France, Germany, Italy, Japan, Netherlands, Poland, Spain, Sweden, Switzerland, UK, USA
Contacts
Biogen Japan Ltd.