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Insulin Delivery for Memory Loss

Recruiting

The Study of Nasal Insulin to Fight Forgetfulness (SNIFF) will test devices that deliver insulin through the nose, and the effects of insulin on memory and insulin levels in the blood and cerebrospinal fluid.

Minimum Age Maximum Age Gender Healthy Volunteers
55 Years 85 Years All Yes
July 16, 2020
October 2023
30

  • Fluent in English
  • Cognitively normal or diagnosis of amnestic mild cognitive impairment
  • Medical conditions stable for three months prior to screening visit
  • Medications stable for four weeks prior to the screening and study visits
  • Laboratory test values within normal limits or, if abnormal, must be clinically insignificant

  • Diagnosis of dementia
  • History of stroke
  • Current evidence or history in past two years of epilepsy, head injury with loss of consciousness, any major psychiatric disorder including psychosis, major depression, or bipolar disorder
  • Diagnosis of diabetes (type 1 or type 2)
  • Current or past regular use of insulin or any other medications to treat diabetes within two months of screening visit
  • History of seizure within past five years
  • Pregnancy or possible pregnancy
  • Use of anticoagulants, such as warfarin (Coumadin) or dabigatran (Pradaxa)
  • Residence in a skilled nursing facility at screening
  • Use of any other study drug or device within two months of screening visit
  • Regular use of alcohol, narcotics, anticonvulsants, or anti-parkinsonian medications

Growing evidence suggests that insulin affects normal memory processes and that abnormal insulin levels may contribute to cognitive and brain changes associated with Alzheimer's disease. Participants will be randomized to receive either 20 or 40 units of insulin, delivered through the nose, over two study visits. Researchers will measure changes in memory, biomarkers for Alzheimer's disease, and insulin levels in the blood and cerebrospinal fluid.

Name City State Zip Status Primary Contact
Wake Forest University Health Sciences
Winston-Salem North Carolina 27157 Recruiting Deborah Dahl
336-713-3432
ddahl@wakehealth.edu

Wake Forest University Health Sciences

Name Role Affiliation
Suzanne Craft, PhD Principal Investigator Wake Forest University Health Sciences

Name Phone Email
Deborah Dahl 336-713-3432 ddahl@wakehealth.edu

NCT04199767

SNIFF Multi-Device Study 2 - Study of Nasal Insulin to Fight Forgetfulness