Study of Nasal Insulin to Fight Forgetfulness - Long-acting Insulin Detemir - 21 Days

• Status: Completed
• Trial end date: 2012-12-01
• Target enrollment: 0
• Participant gender: All

Summary

The study will examine the effects of intranasally administered long-acting insulin detemir on cognition in persons with Alzheimer's disease (AD) or amnestic mild cognitive impairment (aMCI). The rationale for these studies is derived from growing evidence that insulin contributes to multiple brain functions, and that insulin dysregulation can contribute to AD pathogenesis. Thus, therapies aimed at restoring normal insulin signaling in the CNS may have beneficial effects on brain function. Intranasal administration of insulin increases insulin signaling in brain without raising peripheral levels and causing hypoglycemia. Insulin detemir is an insulin analogue that may have better action in brain than other insulin formulations because of its albumin binding properties. The investigators will test the therapeutic effects of intranasally-administered insulin detemir in a dose-finding study in which participants will receive one of two doses of insulin detemir or placebo for a three week period. The investigators will test the hypothesis that either dose will improve memory and daily functioning in persons with AD/aMCI compared with placebo.

• Phase: Phase 2
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: University of Washington
• Collaborator: National Institute on Aging (NIA)
• Treatments: Insulin; Insulin Detemir; Insulin, Globin Zinc; Insulin, Long-Acting

Criteria

Inclusion Criteria:

• Age 50-89

• Diagnosed with mild cognitive impairment, or mild/moderate AD

Exclusion Criteria:

• Excessively high or low blood pressure, heart rate

• BMI greater than 34

• Pre-existing diabetes not controlled by exercise

• Previous/current use of insulin

• Significant elevations in lipids, liver enzymes

• Menstrual period within the last 12 months

• Significant neurological or medical disorder (other than AD)

• Significant use of nasal decongestants

• Current use of anti-psychotic, anti-convulsive, anxiolytic, glucocorticoids, or sedative medications