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NCT05081219CompletedPhase 2

SNIFF - Combo INI+EMPA Trial

Study of Nasal Insulin to Fight Forgetfulness - Combination Intranasal Insulin and Empagliflozin Trial

Source: ClinicalTrials.gov · Last updated 7 Oct 2026

Brief summary (registry, in English)

The proposed pilot study will provide safety and efficacy preliminary data regarding singular and combined effects of two therapeutic approaches, intranasal insulin and treatment with the sodium-glucose cotransporter type 2 inhibitor (SGLT2i) empagliflozin, to correct bioenergetic and vascular dysfunction in adults with preclinical Alzheimer's disease (AD) and amnestic mild cognitive impairment (aMCI) or early AD.

Status (registry)
Completed
Phase (registry)
Phase 2
Study type
Interventional
Enrollment
47 (actual)
First submitted
4 Oct 2021
Start date
14 Sept 2021
Primary completion date
17 Sept 2024
Lead sponsor
Wake Forest University Health Sciences
NCT number
NCT05081219

What you commit to

  • Study type: Interventional · Phase 2
  • Participants enrolled: 47
  • From 14 Sept 2021 to the primary completion date, 17 Sept 2024
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Current or past regular use of insulin or any other anti-diabetic medication within 2 months of screening visit
  • Use of anticoagulants, unless documentation received from prescribing clinician that anticoagulant medication can be held before lumbar puncture, and approved by study clinician
  • Use of an investigational agent within two months of screening visit
  • Regular use of alcohol, narcotics, anticonvulsants, anti-parkinsonian medications, or any other exclusionary medications (exceptions may be made on a case by case basis by the study physician)

Other illness

  • A diagnosis of dementia other than Alzheimer's disease (AD)
  • History of a clinically significant 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, bipolar disorder
  • Diabetes (type I or type II) insulin-dependent and non-insulin-dependent diabetes mellitus
  • History of seizure within past five years

Other

  • Pregnancy or possible pregnancy
  • Residence in a skilled nursing facility at screening

Who the study is looking for

  • Age 55 to 85 (inclusive)
  • Fluent in English
  • Cognitively normal or diagnosis of amnestic mild cognitive impairment (aMCI) or mild Alzheimer's disease (AD)
  • Amyloid positive by positron emission tomography (PET) or cerebrospinal fluid (CSF) criteria
  • Stable medical condition for 3 months prior to screening visit
  • Stable medications for 4 weeks prior to the screening and study visits (exceptions may be made on a case by case basis by the study physician)
  • Clinical laboratory values must be within normal limits or, if abnormal, must be judged to be clinically insignificant by the study physician

Age in the registry: 55 years to 85 years · Sex: All · Accepts healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Wake Forest University Health Sciences / Wake Forest School of Medicine
Coordinator of this site? Confirm its status
Winston-SalemUnited StatesUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.