Early Intermittent Intensive Insulin Therapy as an Effective Treatment of Type 2 Diabetes (RESET-IT Pilot Study)
A Randomized Controlled Trial to Evaluate Early Intermittent Intensive Insulin Therapy as an Effective Treatment of Type 2 Diabetes: REmission Studies Evaluating Type 2 DM - Intermittent Insulin Therapy (RESET-IT Pilot Study)
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 3
Contacts and Locations
Study Locations
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Ontario
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Toronto, Ontario, Canada, M5G1X5
- Mount Sinai Hospital
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Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Men and women between the ages of 30 and 80 years inclusive
- T2DM diagnosed by a physician </= 5 years prior to enrolment
- Negative for anti-glutamic acid decarboxylase (anti-GAD) antibodies
- On either no anti-diabetic medication or on metformin monotherapy, with no change in dose/regimen within 4 weeks prior to enrolment
- A1c at screening between 5.5% and 9.0% inclusive if on metformin, or between 6.0% and 9.5% inclusive if on no oral anti-diabetic medication
- BMI >/= 23 kg/m2
- Negative pregnancy test at recruitment for all women with childbearing potential
Exclusion Criteria:
- Current anti-diabetic treatment with insulin, sulfonylurea, thiazolidinedione, alpha-glucosidase inhibitor, GLP-1 agonist or dipeptidyl peptidase-4 inhibitor
- Type 1 diabetes or secondary forms of diabetes
- History of hypoglycemia unawareness or severe hypoglycemia requiring assistance
- Any major illness with a life expectancy of <5 years
- Hypersensitivity to insulin, metformin or the formulations of these products
- Renal dysfunction as evidenced by estimated glomerular filtration rate (eGFR) <50 ml/min
- Hepatic disease considered to be clinically significant (includes jaundice, chronic hepatitis, previous liver transplant) or transaminases >2.5 X upper limit of normal
- History of congestive heart failure
- Excessive alcohol consumption, defined as >14 alcoholic drinks per week for males and >9 alcoholic drinks per week for females
- Unwillingness to administer insulin therapy or perform capillary blood glucose monitoring at least 4 times per day while receiving IIT
- Pregnancy or unwillingness to use reliable contraception. Women should not be planning pregnancy for the duration of the study or the first 3 months after the study. Reliable contraception includes birth control pill, intra-uterine device, abstinence, tubal ligation, partner vasectomy, or condoms with spermicide.
- Non-adherence to the induction phase or any factor likely to limit adherence to the study protocol, in the opinion of the investigator
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
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Active Comparator: Continuous metformin
After a 3-week course of intensive insulin therapy, participants will be treated with ongoing metformin monotherapy.
Metformin will be initiated at 500mg twice a day for the first 2 weeks, before progressing to 1000mg twice a day for the duration of the trial (24 months).
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Other Names:
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Experimental: Intermittent insulin therapy
After a 3-week course of intensive insulin therapy, participants will receive intermittent intensive insulin therapy for 2 weeks every 3 months.
The 2-week course of insulin therapy will be repeated at 3-, 6-, 9-, 12-, 15-,18- and 21-months, with final outcome measurement performed at 24-months
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Other Names:
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
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Baseline-adjusted beta-cell function at 2 years, measured by Insulin Secretion-Sensitivity Index-2 (ISSI-2).
Time Frame: 2 years
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ISSI-2 is an established measure of beta-cell function.
ISSI-2 is defined as the product of (i) insulin secretion measured by the ratio of the area-under-the-insulin-curve to the area-under-the-glucose curve and (ii) insulin sensitivity measured by the Matsuda index.
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2 years
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Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
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Baseline-adjusted glycemic control at 2-years.
Time Frame: 2 years
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The secondary outcome of baseline-adjusted glycemic control at 2-years will be assessed by A1c (glycated hemoglobin)
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2 years
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Other Outcome Measures
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
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Achievement of target glycemic control
Time Frame: 2 years
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Achievement of target glycemic control will be assessed by the proportion of participants with A1c <7.0%
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2 years
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achievement of glucose tolerance in the non-diabetic range
Time Frame: 2 years
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The proportion of participants with glucose tolerance in the non-diabetic range will be determined on oral glucose tolerance test (OGTT) and defined based on current Canadian Diabetes Association classifications for glucose tolerance status on OGTT.
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2 years
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achievement of normal glucose tolerance
Time Frame: 2 years
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The proportion of participants with normal glucose tolerance will be determined on oral glucose tolerance test (OGTT) and defined based on current Canadian Diabetes Association classifications for glucose tolerance status on OGTT.
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2 years
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insulin sensitivity
Time Frame: 2 years
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Insulin sensitivity will be measured by Matsuda index, a clamp-validated measure of whole-body insulin sensitivity that can be obtained from the oral glucose tolerance test
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2 years
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Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Investigators
Investigators
- Principal Investigator: Ravi Retnakaran, MD, Mount Sinai Hospital, Canada
- Principal Investigator: Bernard Zinman, MD, Mount Sinai Hospital, Canada
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- 12-0263-A Pilot
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