Food Intake and Intra-Nasal Insulin for African American Adults (FIINAAL)

NCT ID: NCT04739371

Last Updated: 2023-11-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-06-17

Study Completion Date

2022-06-07

Brief Summary

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The purpose of this research study is to investigate brain insulin's relationship with food intake in African Americans. Facilitating insulin's entrance into the brain through a nasal spray is currently being studied as a way to prevent or treat Alzheimer's disease. However, brain insulin may also have an impact on food intake. This study is designed to help researchers understand how different factors related to Alzheimer's disease (i.e. APOE genotype and cognitive functioning) influence brain insulin's relationship with food intake.

Detailed Description

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The investigators will utilize a double-blind, placebo-controlled, randomized crossover design comparing a single acute dose of intranasal insulin to a single acute dose of a saline placebo.

The primary aim will consist of exploring the differences in ingestive behaviors constructs (i.e. hunger, satiety, and fullness) and ad libitum lunch caloric intake between acute administration of either a dose of intranasal insulin or saline placebo. The hypothesis is that acute intranasal insulin will result in the consumption of fewer calories, greater feelings of satiety and fullness, and less hunger compared to acute saline. A secondary aim of this investigation will be to analyzing differences in food intake by APOE genotype, adiposity, and AD family history.

Conditions

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Insulin

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

OTHER

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Insulin

40 participants will receive 40 IUs of intranasal insulin about 30 minutes before consuming an ad libitum lunch.

Group Type EXPERIMENTAL

Insulin, Regular, Human

Intervention Type DRUG

The spray will last a few seconds and then the participant will be asked to sniff to aid the drug into the nose. The device (i.e. ViaNase) is an atomizer that uses its patented technology that turns the liquid into a fine mist of droplets to facilitate the drug along the nose to brain pathway. Each nostril will receive this administration 2 times for a total of 40 IUs or 0.4 mL of liquid.

Placebo

40 participants will receive 40 IUs of intranasal saline about 30 minutes before consuming an ad libitum lunch.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

The spray will last a few seconds and then the participant will be asked to sniff to aid the saline into the nose. The device (i.e. ViaNase) is an atomizer that uses its patented technology that turns the liquid into a fine mist of droplets to facilitate the drug along the nose to brain pathway. Each nostril will receive this administration 2 times for a total of 40 IUs or 0.4 mL of liquid.

Interventions

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Insulin, Regular, Human

The spray will last a few seconds and then the participant will be asked to sniff to aid the drug into the nose. The device (i.e. ViaNase) is an atomizer that uses its patented technology that turns the liquid into a fine mist of droplets to facilitate the drug along the nose to brain pathway. Each nostril will receive this administration 2 times for a total of 40 IUs or 0.4 mL of liquid.

Intervention Type DRUG

Placebo

The spray will last a few seconds and then the participant will be asked to sniff to aid the saline into the nose. The device (i.e. ViaNase) is an atomizer that uses its patented technology that turns the liquid into a fine mist of droplets to facilitate the drug along the nose to brain pathway. Each nostril will receive this administration 2 times for a total of 40 IUs or 0.4 mL of liquid.

Intervention Type DRUG

Other Intervention Names

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Novolin R Saline

Eligibility Criteria

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Inclusion Criteria

* self-identify as African American
* are aged 45 years to 65 years old
* are willing to provide written informed consent
* speak and read English

Exclusion Criteria

* diagnosed with type 1 or 2 diabetes
* pregnant or attempting to become pregnant
* have a history of sensitivity to glutaraldehyde
Minimum Eligible Age

45 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Nutrition Obesity Research Center

OTHER

Sponsor Role collaborator

Pennington Biomedical Research Center

OTHER

Sponsor Role lead

Responsible Party

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Owen Carmichael

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Owen T Carmichael, Ph.D.

Role: PRINCIPAL_INVESTIGATOR

Pennington Biomedical Research Center

Locations

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Pennington Biomedical Research Center

Baton Rouge, Louisiana, United States

Site Status

Countries

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United States

Other Identifiers

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PBRC 2020-047

Identifier Type: -

Identifier Source: org_study_id