Dapagliflozin Effects on Hypoglycemia
Primary Purpose
Type1 Diabetes Mellitus
Status
Unknown status
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
Dapagliflozin 5mg
Placebo Oral Tablet
Sponsored by
About this trial
This is an interventional treatment trial for Type1 Diabetes Mellitus
Eligibility Criteria
Inclusion Criteria:
- Signed and dated written informed consent by the date of Visit 1 in accordance with Good Clinical Practice (GCP) and local legislation
- Male or female patient receiving insulin for the treatment of documented diagnosis of T1DM for at least 1 year at the time of Visit 1
- Non-fasting C-peptide < 0.7 ng/mL at Visit 1
- HbA1c ≤ 10.0% at Visit 1
Based on the Investigator's judgment patient must have a good understanding of his/her disease and how to manage it, and be willing and capable of performing the following study assessments (assessed at Visits 1):
- patient-led management and adjustment of insulin therapy
- reliable approach to insulin dose adjustment for meals, such as carbohydrate counting
- reliable and regular home-based blood glucose monitoring
- be able to perform ketone sample measurement when feeling ill and/or nauseated
- implementation of an established "sick day" management regimen
- Age ≥ 18 and ≤ 70 years at Visit 1
- Body Mass Index (BMI) of 18.5 kg/m2 to 35.0 kg/m2 at Visit 1
- eGFR ≥ 60 mL/min/1.73m²
- Patients must be able and willing to perform study assessments
Exclusion Criteria:
- History of T2DM, maturity onset diabetes of the young (MODY), pancreatic surgery or chronic pancreatitis
- Pancreas, pancreatic islet cells or renal transplant recipient
- T1DM treatment with any other antihyperglycemic drug (e.g. metformin, alpha- glucosidase inhibitors, SGLT-2 inhibitors, pramlintide, inhaled insulin, pre-mixed insulins, etc.) within 30 days of run-in (visit 2)
- Occurrence of severe hypoglycemia involving coma and/or seizure that required hospitalization or hypoglycemia-related treatment by an emergency physician or paramedic within 3 months prior to Visit 1 or Visit 2
- Occurrence of DKA within 3 months prior to Visit 1 or Visit 2
- Acute coronary syndrome (non-STEMI, STEMI and unstable angina pectoris), stroke or transient ischemic attack (TIA) within 3 months prior to Visit 1 or Visit 2
- Indication of liver disease, defined by serum levels of either alanine transaminase (ALT), aspartate transaminase (AST), or alkaline phosphatase above 3 x upper limit of normal (ULN) at Visit 1
- Current signs and symptoms of anemia accompanied by a hemoglobin laboratory value at or below 10.0 g/dL at screening.
- Eating disorders such as bulimia or anorexia nervosa
- Treatment with systemic corticosteroids within 30 days of run-in (visit 2), or planned initiation of such therapy at Visit 1 or Visit 2. Inhaled or topical use of corticosteroids (e.g. for asthma/chronic obstructive pulmonary disease) is acceptable.
- Medical history of cancer or treatment for cancer in the last five years prior to Visit 1. Resected basal cell carcinoma considered cured is exempted.
- Women who are pregnant, nursing, or who plan to become pregnant while in the trial
- Intake of an investigational drug in another trial within 30 days prior to Visit 1
- Patient not able to understand and comply with study requirements, based on Investigator's judgment
- Any other clinical condition that, based on Investigator's judgment, would jeopardize patient safety during trial participation or would affect the study outcome (e.g. immunocompromised patients who might be at higher risk of developing genital or mycotic infections, patients with chronic viral infections etc.)
Sites / Locations
- UC San Diego Altman Clinical & Translational Research Institute
Arms of the Study
Arm 1
Arm 2
Arm Type
Experimental
Experimental
Arm Label
Dapagliflozin 5mg
Placebo
Arm Description
Outcomes
Primary Outcome Measures
Glucagon Response to Hypoglycemia
Participants will undergo a baseline hypoglycemic clamp during which glucagon will be measured. Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing glucagon.
Epinephrine Response to Hypoglycemia
Participants will undergo a baseline hypoglycemic clamp during which epinephrine will be measured. Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing epinephrine.
Norepinephrine Response to Hypoglycemia
Participants will undergo a baseline hypoglycemic clamp during which norepinephrine will be measured. Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing norepinephrine.
Cortisol Response to Hypoglycemia
Participants will undergo a baseline hypoglycemic clamp during which cortisol will be measured. Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing cortisol.
Growth Hormone Response to Hypoglycemia
Participants will undergo a baseline hypoglycemic clamp during which growth hormone will be measured. Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing growth hormone.
Hypoglycemia Awareness
Participants will undergo a baseline hypoglycemic clamp during which they will complete the Edinburgh Hypoglycemia Scale (EHS). Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing the EHS.
Trails Making B Performance Response to Hypoglycemia
Participants will undergo a baseline hypoglycemic clamp during which they will complete the cognitive test, Trails Making B. Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing Trails Making B.
Digit Symbol Substitution Performance Response to Hypoglycemia
Participants will undergo a baseline hypoglycemic clamp during which they will complete the cognitive test, Digit Symbol Substitution. Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing Digit Symbol Substitution.
Secondary Outcome Measures
Full Information
NCT ID
NCT03704818
First Posted
October 8, 2018
Last Updated
September 27, 2021
Sponsor
University of California, San Diego
Collaborators
Juvenile Diabetes Research Foundation
1. Study Identification
Unique Protocol Identification Number
NCT03704818
Brief Title
Dapagliflozin Effects on Hypoglycemia
Official Title
Evaluating the Effect of Dapagliflozin, an SGLT-2 Inhibitor, on the Counterregulatory Response to Hypoglycemia in Individuals With Type 1 Diabetes
Study Type
Interventional
2. Study Status
Record Verification Date
September 2021
Overall Recruitment Status
Unknown status
Study Start Date
October 8, 2018 (Actual)
Primary Completion Date
June 30, 2021 (Actual)
Study Completion Date
November 30, 2021 (Anticipated)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
University of California, San Diego
Collaborators
Juvenile Diabetes Research Foundation
4. Oversight
Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Product Manufactured in and Exported from the U.S.
No
Data Monitoring Committee
Yes
5. Study Description
Brief Summary
The purpose of this research study will be to test and evaluate if dapagliflozin has an effect on the amount of glucagon (a hormone produced by the pancreas and stomach that stimulates liver glucose production) produced by the body and if that change will improve recovery time from hypoglycemia (low blood sugar) in participants with Type 1 Diabetes.
Detailed Description
The purpose of this research study will be to test and evaluate if dapagliflozin has an effect on the amount of glucagon (a hormone produced by the pancreas and stomach that stimulates liver glucose production) produced by the body and if that change will improve recovery time from hypoglycemia (low blood sugar) in participants with Type 1 Diabetes. The study is a blinded, placebo-controlled, crossover design, where participants will receive dapagliflozin during one treatment period and placebo during a separate treatment period with neither the study team nor participants knowing what they are receiving at any given time. Participants will have 9 clinic visits over the course of 14-16 weeks, with 3 of those visits being overnight stays. The overnight stays are intended to control blood sugars in a normal state throughout the night and then participants will complete a hypoglycemic challenge the following morning. The body's response to the hypoglycemic challenge will provide the information needed to determine if dapagliflozin had an effect on recovery time from hypoglycemia.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Type1 Diabetes Mellitus
7. Study Design
Primary Purpose
Treatment
Study Phase
Phase 1
Interventional Study Model
Crossover Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
22 (Actual)
8. Arms, Groups, and Interventions
Arm Title
Dapagliflozin 5mg
Arm Type
Experimental
Arm Title
Placebo
Arm Type
Experimental
Intervention Type
Drug
Intervention Name(s)
Dapagliflozin 5mg
Other Intervention Name(s)
Farxiga
Intervention Description
Dapagliflozin treatment taken daily for 4-weeks.
Intervention Type
Drug
Intervention Name(s)
Placebo Oral Tablet
Intervention Description
Placebo treatment taken daily for 4-weeks.
Primary Outcome Measure Information:
Title
Glucagon Response to Hypoglycemia
Description
Participants will undergo a baseline hypoglycemic clamp during which glucagon will be measured. Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing glucagon.
Time Frame
12 Weeks
Title
Epinephrine Response to Hypoglycemia
Description
Participants will undergo a baseline hypoglycemic clamp during which epinephrine will be measured. Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing epinephrine.
Time Frame
12 Weeks
Title
Norepinephrine Response to Hypoglycemia
Description
Participants will undergo a baseline hypoglycemic clamp during which norepinephrine will be measured. Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing norepinephrine.
Time Frame
12 Weeks
Title
Cortisol Response to Hypoglycemia
Description
Participants will undergo a baseline hypoglycemic clamp during which cortisol will be measured. Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing cortisol.
Time Frame
12 Weeks
Title
Growth Hormone Response to Hypoglycemia
Description
Participants will undergo a baseline hypoglycemic clamp during which growth hormone will be measured. Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing growth hormone.
Time Frame
12 Weeks
Title
Hypoglycemia Awareness
Description
Participants will undergo a baseline hypoglycemic clamp during which they will complete the Edinburgh Hypoglycemia Scale (EHS). Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing the EHS.
Time Frame
12 Weeks
Title
Trails Making B Performance Response to Hypoglycemia
Description
Participants will undergo a baseline hypoglycemic clamp during which they will complete the cognitive test, Trails Making B. Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing Trails Making B.
Time Frame
12 Weeks
Title
Digit Symbol Substitution Performance Response to Hypoglycemia
Description
Participants will undergo a baseline hypoglycemic clamp during which they will complete the cognitive test, Digit Symbol Substitution. Follow-up hypoglycemic clamps will be performed after each 4-week treatment period re-assessing Digit Symbol Substitution.
Time Frame
12 Weeks
10. Eligibility
Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
70 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria:
Signed and dated written informed consent by the date of Visit 1 in accordance with Good Clinical Practice (GCP) and local legislation
Male or female patient receiving insulin for the treatment of documented diagnosis of T1DM for at least 1 year at the time of Visit 1
Non-fasting C-peptide < 0.7 ng/mL at Visit 1
HbA1c ≤ 10.0% at Visit 1
Based on the Investigator's judgment patient must have a good understanding of his/her disease and how to manage it, and be willing and capable of performing the following study assessments (assessed at Visits 1):
patient-led management and adjustment of insulin therapy
reliable approach to insulin dose adjustment for meals, such as carbohydrate counting
reliable and regular home-based blood glucose monitoring
be able to perform ketone sample measurement when feeling ill and/or nauseated
implementation of an established "sick day" management regimen
Age ≥ 18 and ≤ 70 years at Visit 1
Body Mass Index (BMI) of 18.5 kg/m2 to 35.0 kg/m2 at Visit 1
eGFR ≥ 60 mL/min/1.73m²
Patients must be able and willing to perform study assessments
Exclusion Criteria:
History of T2DM, maturity onset diabetes of the young (MODY), pancreatic surgery or chronic pancreatitis
Pancreas, pancreatic islet cells or renal transplant recipient
T1DM treatment with any other antihyperglycemic drug (e.g. metformin, alpha- glucosidase inhibitors, SGLT-2 inhibitors, pramlintide, inhaled insulin, pre-mixed insulins, etc.) within 30 days of run-in (visit 2)
Occurrence of severe hypoglycemia involving coma and/or seizure that required hospitalization or hypoglycemia-related treatment by an emergency physician or paramedic within 3 months prior to Visit 1 or Visit 2
Occurrence of DKA within 3 months prior to Visit 1 or Visit 2
Acute coronary syndrome (non-STEMI, STEMI and unstable angina pectoris), stroke or transient ischemic attack (TIA) within 3 months prior to Visit 1 or Visit 2
Indication of liver disease, defined by serum levels of either alanine transaminase (ALT), aspartate transaminase (AST), or alkaline phosphatase above 3 x upper limit of normal (ULN) at Visit 1
Current signs and symptoms of anemia accompanied by a hemoglobin laboratory value at or below 10.0 g/dL at screening.
Eating disorders such as bulimia or anorexia nervosa
Treatment with systemic corticosteroids within 30 days of run-in (visit 2), or planned initiation of such therapy at Visit 1 or Visit 2. Inhaled or topical use of corticosteroids (e.g. for asthma/chronic obstructive pulmonary disease) is acceptable.
Medical history of cancer or treatment for cancer in the last five years prior to Visit 1. Resected basal cell carcinoma considered cured is exempted.
Women who are pregnant, nursing, or who plan to become pregnant while in the trial
Intake of an investigational drug in another trial within 30 days prior to Visit 1
Patient not able to understand and comply with study requirements, based on Investigator's judgment
Any other clinical condition that, based on Investigator's judgment, would jeopardize patient safety during trial participation or would affect the study outcome (e.g. immunocompromised patients who might be at higher risk of developing genital or mycotic infections, patients with chronic viral infections etc.)
Facility Information:
Facility Name
UC San Diego Altman Clinical & Translational Research Institute
City
La Jolla
State/Province
California
ZIP/Postal Code
92037
Country
United States
12. IPD Sharing Statement
Plan to Share IPD
No
Citations:
PubMed Identifier
34857545
Citation
Boeder SC, Gregory JM, Giovannetti ER, Pettus JH. SGLT2 Inhibition Increases Fasting Glucagon but Does Not Restore the Counterregulatory Hormone Response to Hypoglycemia in Participants With Type 1 Diabetes. Diabetes. 2022 Mar 1;71(3):511-519. doi: 10.2337/db21-0769.
Results Reference
derived
Learn more about this trial
Dapagliflozin Effects on Hypoglycemia
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