A Phase 1 interventional study of Insulin in Ischemic Stroke, sponsored by University at Buffalo. Completed at 1 site in United States. Open to participants aged 18 Years to 85 Years. Per ClinicalTrials.gov, last updated 2025-08-08.
Sponsored by University at Buffalo · Phase 1, Interventional, and Treatment
The purpose of this study is to determine the safety and efficacy of lowering glucose (blood sugar), in addition to endovascular therapy, after acute ischemic stroke. The study will determine if lowering glucose (blood sugar) in addition to endovascular therapy will improve 90-day functional and neurological outcomes in comparison to standard glycemic care in patients with acute ischemic stroke. The study will involve treatment of 100 (50 intensive insulin therapy and 50 standard glycemic control) non-diabetic patients presenting within 8 hours of acute ischemic stroke who have undergone endovascular therapy.
This will be a prospective open label study of 100 subjects who will be randomized to either an insulin aspart (study drug) infusion (intensive insulin therapy [IIT arm]) for 48hrs or to a control arm. All patients attending the emergency department (ED) of Kaleida health within 24 hrs of symptom onset suggestive of an anterior circulation ischemic stroke will be screened. If they meet the inclusion criteria and do not have any exclusion criteria, informed consent will be obtained and a blinded stratified block randomization process will be initiated.
In addition to receiving endovascular and standard medical therapy for AIS, subjects will be randomized to an intensive insulin treatment arm (IIT arm) or control arm. In the IIT arm subjects will receive an insulin aspart infusion at a minimal rate of 2 units/hr while maintaining blood glucose between 90-120mg/dl for 48 hrs. Glucose control in the control will be at the discretion of the treating provider.
Subjects will have the following study procedures done at different time points: A) assessment of neurological outcomes : modified Rankin scale (mRS) at 30 days and 90 days and NIH stroke scale (NIHSS) at baseline , 24 hrs, 72 hrs, 30 days and 90 days.
B) MRI (Diffusion weighted imaging), 3-5 days and 90 days and C) various plasma and cellular endpoints will be measured in blood collected at baseline, 2, 4, 6, 24 , 48 and 72 hrs and at 30 days and 90 days.
The primary endpoint of the study is to detect a difference in the percentage of non diabetic subjects with mRS 0-2 at 90 days after an AIS treated with endovascular therapy, in the IIT and control arm.
2,612 studies on the registry are indexed under Ischemic Stroke; 971 are open to participants now.
This study's enrollment of 30 is below the median of 120 across 1,776 interventional studies indexed under Ischemic Stroke.
Browse Ischemic Stroke studies →University at Buffalo is the lead sponsor of 76 studies on the registry; none are open to participants now.
Of its 7 completed or terminated interventional studies of FDA-regulated products, 6 (86%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.
Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
INR, PT and aPTT (clotting tests)
Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.
Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Platelets
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Life expectancy
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
IIT arm subjects will receive an insulin aspart infusion at a minimal rate of 2 units/hr while maintaining blood glucose between 90-120mg/dl for 48 hrs
Drug: Insulin
standard of care if not randomized to Insulin
Intensive Insulin Therapy (IIT) will be given to you by two IV infusions. The insulin infusion will be started immediately after you are moved to the intensive care unit (ICU) after endovascular therapy and continued for 48 hours
Also known as: insulin and, dextrose/ potassium
Stroke Scale
modified Rankin Score (specific aim) and NIH stroke scale (exploratory aim)
Time frame: 90 days
MRI
Measure infarct volume and determine if there is a reduction in infact volume in the insulin-infused group
Time frame: 2, 3, 5, and 90 days
Ran from Jan 2013 to primary completion in Dec 2016, 47 months.
Of 42 phase 1 interventional studies under Ischemic Stroke, half reached primary completion within 15 months of starting (the median), counting those still running; a quarter within 7 and three quarters within 29. This study's 47 months is above that.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Aug 2025. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Insulin
University at Buffalo