Summary

Eligibility
for people ages 50-90 (full criteria)
Location
at San Francisco, California and other locations
Dates
study started
estimated completion

Description

Summary

The primary objective is to evaluate the safety and tolerability of aducanumab over 100 weeks of treatment after a wash-out period imposed by discontinuation of feeder studies in participants who had previously received aducanumab (i.e. previously treated participants) or who had previously received placebo (i.e. treatment-naïve participants).

Official Title

Phase 3b Open-Label, Multicenter, Safety Study of BIIB037 (Aducanumab) in Subjects With Alzheimer's Disease Who Had Previously Participated in the Aducanumab Studies 221AD103, 221AD301, 221AD302 and 221AD205

Keywords

Alzheimer's Disease Alzheimer Disease Aducanumab

Eligibility

You can join if…

Open to people ages 50-90

Core Treatment Period:

  • Participant was participating in an aducanumab clinical study at the time of the announcement of early termination (feeder studies).
  • Has one care partner who, in the Investigator's opinion, has adequate contact with the participant as to be able to provide accurate information about the participant's cognitive and functional abilities.

LTE Treatment Period:

  • Participant must have completed the Core study period (Week 102) and adequately tolerated 10 mg/kg of aducanumab during the Core study period in the opinion of the Investigator.
  • Has one informant/care partner who, in the Investigator's opinion, has frequent and sufficient contact with the participant as to be able to provide accurate information about the participant's cognitive and functional abilities.

You CAN'T join if...

Core Treatment Period:

  • Any medical or neurological condition (other than Alzheimer's Disease) that might be a contributing cause of the participant's cognitive impairment.
  • Stroke or any unexplained loss of consciousness within 1 year prior to Screening.
  • Clinically significant unstable psychiatric illness in past 6 months.
  • History of unstable angina, myocardial infarction, advanced chronic heart failure, or clinically significant conduction abnormalities within 1 year prior to Screening.
  • A seizure event that occurred after the last visit of the feeder study and before Screening for this study.
  • Evidence of impaired liver function as shown by an abnormal liver function profile at Screening.
  • History of or known seropositivity for HIV.
  • Clinically significant systemic illness or serious infection within 30 days prior to or during Screening.
  • Contraindications to having a brain magnetic resonance imaging (MRI).

LTE Treatment Period:

  • Any medical or psychiatric contraindication or clinically significant abnormality that, in the opinion of the Investigator, will substantially increase the risk associated with the participant's enrollment in and completion of the study.

Note- Other protocol defined Inclusion/Exclusion criteria may apply.

Locations

  • UCSF - Memory and Aging Center
    San Francisco California 94143 United States
  • Stanford Hospital and Clinics
    Palo Alto California 94304 United States

Details

Status
in progress, not accepting new patients
Start Date
Completion Date
(estimated)
Sponsor
Biogen
ID
NCT04241068
Phase
Phase 3 Alzheimer's Disease Research Study
Study Type
Interventional
Participants
At least 1696 people participating
Last Updated