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RecruitingNCT07384052INI-SCIUpdated Sep 15, 2026

Safety and Feasibility of Intranasal Insulin in Patients With Spinal Cord Injury

A Phase 1 interventional study of Regular Insulin and 0.9 % Normal Saline in Spinal Cord Injury, sponsored by HealthPartners Institute. Recruiting at 1 site in United States. Open to participants aged 18 Years to 84 Years. Per ClinicalTrials.gov, last updated 2026-09-15.

Sponsored by HealthPartners Institute · Phase 1, Interventional, and Other

Phase
Phase 1
Study type
Interventional
Enrollment
12
Allocation
Randomized
Ages
18 Years to 84 Years
Sex
All
01

Study summary

The purpose of this study is to find out whether insulin, a drug approved by the FDA for the treatment of diabetes mellitus, is safe when administered as a nasal spray (intranasally) to people who have experienced a spinal cord injury. While insulin nasal spray has been shown to be safe in many patient populations, it has not yet been studied in people with spinal cord injury. This study would be the first step to developing insulin nasal spray as a treatment for spinal cord injury in the future.

This study is recruiting up to 12 individuals who have experienced a spinal cord injury at least 4 months ago to administer either 76 IU insulin nasal spray or a placebo (inactive nasal spray) at home every day for up to 24 days. Participants will be asked questions about their health and symptoms related their spinal cord injury, and will have their blood collected throughout the study. Participants who are unable to administer the medication independently must have a study partner in order to participate.

02

Conditions studied

  • Spinal Cord Injury

Keywords

  • Insulin
  • Intranasal
  • Safety
  • Feasibility
  • Spinal Cord Injury
  • SCI
  • INI
03

Who can participate

Ages eligible
18 Years to 84 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Subject is ≥18 and \<85 years of age
  2. Subject has sustained a traumatic or non-traumatic spinal cord injury with American Spinal Injury Association (ASIA) rating A, B, C or D, complete or incomplete
  3. Subject sustained spinal cord injury at least 4 months before baseline visit
  4. Female subjects must have either: (1) a negative pregnancy test at the screening and treatment visits OR (2) be at least 2 years post-menopausal / surgically sterile
  5. The subject must be proficient in English in order to comply with instructions and measures for the study
  6. Subject is able to prepare and administer the study drug as outlined in the protocol or has a carer who is available to do so for the duration of the study
  7. Subject can provide written informed consent
  8. Subject has been on a stable regimen of medications for at least 30 days from baseline visit

Exclusion criteria

Exclusion Criteria:

  1. Subject is dependent on a ventilator or has a patent tracheostomy site
  2. Subject has recent history (within past 6 months) of recurrent autonomic dysreflexia, defined as a sudden rise in systolic BP greater than 20 mmHg or diastolic BP greater than 10 mmHg without rise in heart rate and accompanied by symptoms such as headache, facial flushing, sweating, nasal congestion, or blurry vision
  3. Subject has medical history and/or clinically determined disorders: chronic sinusitis, previous nasal and/or oto-pharyngeal surgery and severe deviated septum and/or other anomalies
  4. Subject has history of any of the following: active and significant central nervous system, psychiatric illness, pulmonary, or cardiovascular disorders or any other clinically relevant abnormality that inclusion would pose a safety risk to the subject as determined by investigator
  5. Subject has participated in a clinical trial investigation within 3 months of this study
  6. Subject has a history of allergy, hypersensitivity, or other significant adverse reaction to insulin
  7. Subject is taking insulin for Type I or Type II diabetes
  8. Subject is pregnant or breast feeding
  9. Any other clinically relevant finding that would pose a safety risk to the subject as determined by the investigator
04

Study design

Phase
Phase 1
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
12 participants (estimated)

Study arms

  • Experimental
    Intranasal Insulin

    Regular Insulin (Novolin-R) 76 international units per day administered as 38 IU in one nostril twice daily (alternating nostrils) for 21+/-3 days

    Drug: Regular Insulin

  • Placebo comparator
    Placebo

    0.9% sodium chloride in one nostril twice daily (alternating nostrils) for 21+/- days

    Other: 0.9 % Normal Saline

Interventions

  • DrugRegular Insulin

    Administered Intranasally at 76 IU

    Also known as: Novolin-R

  • Other0.9 % Normal Saline

    Placebo Control

05

What researchers measure

Primary outcomes

  1. Safety measured by number of serious adverse events (SAE) and adverse events (AE)

    Total number of AEs/SAEs during the course of treatment. More AEs/SAEs indicates a less safe treatment. AEs counts will include total count and will be stratified by severity.

    Time frame: 3 weeks

Secondary outcomes

  1. Treatment adherence as assessed by participant Daily Drug Diaries

    Number of doses successfully administered as reported by participants in their daily drug diaries

    Time frame: 3 weeks

  2. Feasibility of virtual training as assessed by the Virtual Training Compliance Checklist

    Average score on virtual training compliance checklist, both arms combined

    Time frame: Baseline Visit

  3. Acceptability of virtual training as assessed by the Virtual Training and Feasibility and Acceptability Survey

    Total score on the Virtual Training Feasibility and Acceptability Survey, both arms combined

    Time frame: Baseline

  4. Feasibility of blood spot collection procedure as measured by a Blood Spot Procedure Compliance Checklist

    Participants will be trained to perform a blood spot collection procedure independently. Feasibility will be measured by the average score on blood spot procedure compliance checklist, both arms combined

    Time frame: Screening Visit

  5. Acceptability of Blood Spot Procedure, as measured by a Blood Spot Procedure Post-Training Acceptability Survey

    Acceptability of performing blood spot procedure independently will be measured by the average score on a blood spot procedure post-training acceptability survey, both arms combined

    Time frame: Screening Visit

06

Study locations

1 of 1 sites recruiting
07

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT07384052
Lead sponsor
HealthPartners Institute
Collaborators
Uniformed Services University of the Health Sciences, Congressionally Directed Medical Research Programs
Responsible party
Sponsor
First posted
Feb 3, 2026
Start date
Feb 20, 2026
Primary completion
Dec 2026 (estimated)
Completion
Jan 2027 (estimated)
Last update
Sep 15, 2026

Study contacts

Meghan E O'Brien, MPH
Contact
Meghan.E.Obrien@HealthPartners.com
651-495-6363
Bethany K Crouse, PhD
Contact
Bethany.K.Crouse@HealthPartners.com
Leah R Hanson, PhD
principal investigator · HealthPartners Institute
Kimberly Byrnes, PhD
principal investigator · Uniformed Services University of the Health Sciences

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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