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Type1diabetesPhase 2NCT04028960

IN Insulin in Type 1 Diabetes (T1D) Hypoglycemia Unawareness: Safety Only Phase

A Phase 2 study testing Regular insulin (Humulin-R), intranasal route and SipNose intranasal device in people with Type1diabetes, run by HealthPartners Institute at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this study is to determine how Humulin-R regular insulin affects the body's ability to feel low blood sugar (hypoglycemia) when delivered intranasally compared to placebo in subjects with Type 1 Diabetes (T1D) with hypoglycemia awareness. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Type1diabetes
What is being tested?
Regular insulin (Humulin-R), intranasal route and SipNose intranasal device
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
4 participants
Where
1 siteUnited States
Study dates
23 Oct 2019to 8 Apr 2020
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Adult patients (age ≥18) with type 1 diabetes diagnosis and a duration of diabetes of at least 10 years
  • Gold score <4
  • HbA1c ≥6.5% within the last 3 months or at screen visit
  • Stable insulin regimen (MDI or insulin pump) for at least 3 months, as deemed stable by principal investigator
  • Depression/anxiety medications stable for at least 3 months
  • Ability and willingness to wear CGM continuously during study participation
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  • Participants must use their own smartphone, and have the ability and willingness to use CGM smartphone applications compatible with their smartphone
  • Ability and willingness to check self-monitoring of blood glucose (SMBG) using own supplies, as instructed by study staff
  • Ability and willingness to document when having symptoms of hypoglycemia in the CGM smartphone app or in a diary
  • Willing to operate insulin pump without threshold suspend feature or hybrid closed-loop, if applicable
  • Proficient in speaking, reading and understanding English in order to complete surveys and testing of cognitive function
  • Women of child-bearing age must agree to procure and use contraception throughout the study

Who cannot join

  • Pregnancy or planning pregnancy
  • eGFR ≤ 30 mL/min per 1.73 m2, if available from medical record
  • Completed any other research study within 6 months of screening date
  • Current or recent use within 3 months of an insulin delivery system that adjusts insulin in response to continuous glucose monitoring (CGM) data (such as an automated insulin delivery system like hybrid closed-loop insulin pump therapy)
  • Known dementia or mild cognitive impairment diagnosis
  • Diabetic ketoacidosis within the last 6 months
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  • Use of non-insulin medications to treat diabetes
  • Those planning to change diet or exercise regimen during the study
  • History of trans-sphenoidal surgery or surgery to the upper part of the nasal cavity, chronic sinusitis, severe deviated septum, or difficulty with smell and/or taste
  • Severe psychiatric illness
  • Allergy to adhesives, insulin or any components of insulin product
  • Subject cannot adequately demonstrate ability to use and deploy the devices as determined by investigator
  • Evidence of suicidality using the Columbia-Suicide Severity Rating Scale (C-SSRS)
  • Subject has history of any of the following: moderate to severe pulmonary disease, poorly controlled congestive heart failure, significant cardiovascular and/or cerebrovascular events within previous 6 months, condition known to affect absorption, distribution, metabolism, or excretion of drugs such as any hepatic, renal or gastrointestinal disease or any other clinically relevant abnormality or illness that inclusion would pose a safety risk to the subject as determined by investigator.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Health Partners Institute dba International Diabetes Center

    Minneapolis, Minnesota, 55416

Other trials in United States

About this study

Official title: Intranasal Insulin: A Novel Therapy for Hypoglycemia Unawareness in Type 1 Diabetes

The purpose of this study is to determine how Humulin-R regular insulin affects the body's ability to feel low blood sugar (hypoglycemia) when delivered intranasally compared to placebo in subjects with Type 1 Diabetes (T1D) with hypoglycemia awareness. The study will use continuous glucose monitoring (CGM) to collect this information. The study drug or placebo will be administered using an intranasal device.

Read the detailed description

Hypoglycemia occurs with high frequency among patients with T1D. With repeated episodes of hypoglycemia, the counter-regulatory pathways to restore normal glucose are blunted, and patients can become unaware of the hypoglycemia. It is estimated that 40% of patients with T1D have hypoglycemia unawareness.

The study has the following objectives:

  1. Primary:
  2. To assess non-inferiority of dangerous hypoglycemia with administration of intranasal insulin in T1D participants with intact awareness of hypoglycemia.
  3. Secondary:
  4. To describe changes in overall glycemic control with administration of intranasal insulin in T1D participants with intact awareness of hypoglycemia
  5. To describe changes in hypoglycemia awareness with administration of intranasal insulin in T1D participants with intact awareness of hypoglycemia
  6. To describe changes in safety endpoints with administration of intranasal insulin in T1D participants with intact awareness of hypoglycemia.
  7. Exploratory:
  8. To describe changes in memory, attention and executive function with administration of intranasal insulin in T1D participants with intact awareness of hypoglycemia
Conditions
Type1diabetes
Being tested
Regular insulin (Humulin-R), intranasal route, SipNose intranasal device

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Regular insulin (Humulin-R), intranasal routeDrug

    Humulin-R insulin is approved by the U.S. Food and Drug Administration (FDA) for the treatment of diabetes.

  • SipNose intranasal deviceDevice

    The SipNose device is an aerosol nasal delivery platform that uses pressurized delivery through the discharge of compressed air, resulting in an aerosol that delivers the drug in a narrow plume geometry, which targets the olfactory epithelium in the upper nasal cavity. From the olfactory epithelium, therapeutics rapidly reach the central nervous system, traveling extracellularly along the olfactory nerves. The device is not currently commercially available, but numerous studies have demonstrated its ability to intranasally deliver radiolabeled and therapeutic compounds to the brain.

Study groups in NCT04028960
Study groupRoleWhat they receive
PlaceboPlacebo comparatorNo active drug
Receives: Device: SipNose intranasal device
Humulin-RExperimentalInsulin
Receives: Drug: Regular insulin (Humulin-R), intranasal route; Device: SipNose intranasal device

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Time With Dangerous Hypoglycemia

    Defined using percent time below range (<54 mg/dL), from real-time continuous glucose monitoring (CGM)

    Measured: Two 14-20 day treatment periods

Secondary outcomes (8)
  1. Percent of Time With Blood Glucose 70-180 mg/dL

    Defined using percent of Blood Glucose 70-180 mg/dL from real-time continuous glucose monitoring (CGM)

    Measured: Two 14-20 day treatment periods

  2. Percentage of Time With Blood Glucose <70 mg/dL

    Defined using percent of Blood Glucose <70 mg/dL from real-time continuous glucose monitoring (CGM)

    Measured: Two 14-20 day treatment periods

  3. Percentage of Time Blood Glucose >180 mg/dL

    Percentage of time Blood Glucose >180 mg/dL from real-time continuous glucose monitoring (CGM)

    Measured: Two 14-20 day treatment periods

  4. Percentage of Time With Blood Glucose >250 mg/dL

    Percentage of time with Blood Glucose >250 mg/dL from real-time continuous glucose monitoring (CGM)

    Measured: Two 14-20 day treatment periods

  5. Percentage of Time Participant Had Active Sensor Wear

    Percentage of time Participant had Active Sensor Wear from real-time continuous glucose monitoring (CGM)

    Measured: Two 14-20 day treatment periods

  6. Mean Glucose From the Study Participants

    Mean Glucose from the Study Participants from real-time continuous glucose monitoring (CGM)

    Measured: Two 14-20 day treatment periods

  7. Coefficient of Variation (%CV) of Blood Glucose Values From CGM Data

    The Coefficient of variation was calculated by dividing the standard deviation of blood glucose values by the mean of the blood glucose values based on data from the corresponding CGM readings.

    Measured: Two 14-20 day treatment periods

  8. Glucose Management Indicator (GMI)

    An approximate HbA1c based upon real-time continuous glucose monitoring (CGM) values

    Measured: Two 14-20 day treatment periods

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Jul 2019
  2. Study start23 Oct 2019
  3. Primary completion8 Apr 2020
  4. Study completion8 Apr 2020

Why it stopped: Funding was rescinded

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
4 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04028960
Sponsor's protocol ID
A16-716
Status last verified
May 2020
First submitted
19 Jul 2019
Last updated
18 May 2021
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Regular insulin (Humulin-R), intranasal route and SipNose intranasal device in people with Type1diabetes, run by HealthPartners Institute at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 12 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 18 May 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 18 May 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of Time With Dangerous Hypoglycemia (time frame: Two 14-20 day treatment periods). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 May 2021.

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