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Combination GRA and SGLT-2i Treatment in Type 1 Diabetes

Primary Purpose

Type 1 Diabetes

Status
Completed
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
Dapagliflozin 10 MG [Farxiga]
REMD-477
Placebo
Sponsored by
University of California, San Diego
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional basic science trial for Type 1 Diabetes

Eligibility Criteria

18 Years - 65 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. Men and women between the ages of 18 and 65 years old, inclusive, at the time of screening;
  2. Females of non-child bearing potential must be ≥ 1 year post-menopausal or documented as being surgically sterile. Females of child bearing potential must agree to use two methods of contraception during the entire study and for an additional 3 months after the end of dosing with the investigational product;
  3. Male subjects must be willing to use clinically acceptable method of contraception during the entire study and for an additional 6 months after the end of the treatment period;
  4. Diagnosed with Type 1 diabetes based on clinical history or as defined by the current American Diabetes Association (ADA) criteria for > 5 years;
  5. Treatment with a stable insulin regimen (< 1u/kg per day) for at least 8 weeks before screening with continuous subcutaneous insulin infusion (CSII) via an insulin pump;
  6. Currently using a Continuous Glucose Monitoring (CGM) system
  7. HbA1c ≤ 9 % at screening;
  8. A minimum weight of 50kg;
  9. eGFR ≥ 60 mL/min/1.73m²
  10. Able to provide written informed consent approved by an Institutional Review Board (IRB).

Exclusion Criteria:

  1. History of T2DM, maturity onset diabetes of the young (MODY), pancreatic surgery or chronic pancreatitis
  2. Pancreas, pancreatic islet cells or renal transplant recipient
  3. 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)
  4. 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
  5. Occurrence of DKA within 3 months prior to Visit 1 or Visit 2
  6. Occurrence of symptomatic hypotension within 3 months prior to Visit 1 (Screen) or Visit 2
  7. Occurrence of multiple genital mycotic infections within 6 months prior to Visit 1 (Screen) or Visit 2
  8. 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
  9. 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
  10. Current signs and symptoms of anemia accompanied by a hemoglobin laboratory value at or below 10.0 g/dL at screening.
  11. Active eating disorders such as bulimia or anorexia nervosa
  12. Body Mass Index (BMI) < 18.5 kg/m2 and/or weight less than 50kg;
  13. Whole blood donation of 1 pint (500 mL) within 8 weeks prior to Screening. Donations of plasma, packed RBCs, platelets or quantities less than 500 mL are allowed at investigator discretion;
  14. 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.
  15. Medical history of bladder cancer or treatment for any cancer in the last five years prior to Visit 1. Resected basal cell carcinoma considered cured is exempted.
  16. Women who are pregnant, nursing, or who plan to become pregnant while in the trial
  17. Intake of an investigational drug in another trial within 30 days prior to Visit 1
  18. Patient not able to understand and comply with study requirements, based on Investigator's judgment
  19. 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

Active Comparator

Placebo Comparator

Arm Label

Treatment A

Treatment B

Arm Description

Daily, Oral,10mg dapagliflozin in combination with Weekly, Subcutaneous, 35mg in 1mL solution REMD-477

Daily, Oral,10mg dapagliflozin in combination with Weekly, Subcutaneous, 1mL solution Placebo

Outcomes

Primary Outcome Measures

Change in Beta-hydroxybutyrate (BHB) Level
The change from baseline in peak BHB production as measured by the insulin withdrawal challenge.
Change in Glycemic Control
The change from baseline glycemic control as measured by a 2-week average of CGM "time-in-range".
Change in Glycemic Control
The change from baseline glycemic control as measured by HbA1c.
Change in Vascular Endothelial Function
The change from baseline in vascular endothelial function as measured by flow mediated dilation (brachial artery diameter).
Change in Vascular Endothelial Function
The change from baseline in vascular endothelial function as measured by reactive hyperemia-peripheral arterial tonometry (reactive hyperemia index).

Secondary Outcome Measures

Full Information

First Posted
August 28, 2020
Last Updated
January 20, 2023
Sponsor
University of California, San Diego
Collaborators
REMD Biotherapeutics, Inc., Juvenile Diabetes Research Foundation, The Leona M. and Harry B. Helmsley Charitable Trust
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1. Study Identification

Unique Protocol Identification Number
NCT04545411
Brief Title
Combination GRA and SGLT-2i Treatment in Type 1 Diabetes
Official Title
Effect of Glucagon Receptor Antagonism on Ketogenesis in SGLT-2i Treated Subjects With T1D
Study Type
Interventional

2. Study Status

Record Verification Date
January 2023
Overall Recruitment Status
Completed
Study Start Date
February 22, 2021 (Actual)
Primary Completion Date
February 28, 2022 (Actual)
Study Completion Date
October 31, 2022 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
University of California, San Diego
Collaborators
REMD Biotherapeutics, Inc., Juvenile Diabetes Research Foundation, The Leona M. and Harry B. Helmsley Charitable Trust

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
A pilot study for individuals with Type 1 Diabetes who are willing to add an SGLT-2i (Sodium-Glucose Cotransporter-2 Inhibitor) in combination with placebo or a GRA (Glucagon Receptor Antagonist) to their current diabetes treatment regimen. There will be 15 study visits over approximately 14 weeks in this cross-over study design. Treatment "A" consists of an SGLT-2i + GRA for 4 weeks and treatment "B" consists of an SGLT-2i + placebo for 4 weeks. All participants will complete both treatment "A" and treatment "B" with a 6-week washout period in between the treatments. Testing includes 3 insulin withdraw challenges, 3 muscle biopsies, 3 fat biopsies, 3 vascular ultrasounds along with blood collection and vitals.
Detailed Description
This is a single-center, randomized, double-blind, cross-over, multi-dose study designed to elicit pilot data for a larger project. To accomplish the specific aims proposed, a single clinical trial will be conducted in which a maximum of 12 subjects with T1D, who are otherwise healthy, will be treated with an oral SGLT-2i (Sodium-Glucose Cotransporter-2 Inhibitor), 10mg dapagliflozin taken daily in combination with a GRA (Glucagon Receptor Antagonist), 70mg REMD-477 subcutaneous injection once a week or placebo (subcutaneous injection to match the volume of REMD-477) once a week. There will be two treatments: Treatment "A" consists of an SGLT-2i + GRA for 4 weeks and Treatment "B" consists of an SGLT-2i + placebo for 4 weeks. Participants will be randomly assigned to either start with Treatment A or Treatment B for the first 4 weeks of treatment. After completing the first treatment group, participants will be washed off all study drug for 6 weeks. After the washout period, participants will complete 4 weeks of dosing with the opposite treatment they received during the first 4 weeks. There will be 15 study visits as outlined below: Screening - Complete medical history, physical exam, review current medications, height/weight, vital signs, ECG and fasting laboratory (blood and urine) tests. Baseline 1 - Complete vitals, weight, physical exam, fasting blood collection, download CGM data, collect insulin usage, complete measurements of blood vessels using EndoPat and ultrasound, complete diabetes questionnaires, and complete fat and muscle biopsies. Baseline 2 - Complete vitals, weight, fasting blood collection, insulin withdraw procedure and start first dose of study medications. Visit 4 - Complete vitals, weight, dose 2 of REMD-477/Placebo, review CGM data and insulin dosing. Visit 5 - Complete vitals, weight, dose 3 of REMD-477/Placebo, review CGM data and insulin dosing. Visit 6 - Complete vitals, weight, dose 4 of REMD-477/Placebo, review CGM data and insulin dosing. Repeat Measures 1 - Complete vitals, weight, physical exam, fasting blood collection, download CGM data, collect insulin usage, complete measurements of blood vessels using EndoPat and ultrasound, complete diabetes questionnaires, and complete fat and muscle biopsies. Repeat Measures 2 - Complete vitals, weight, fasting blood collection, insulin withdraw procedure and begin wash-out of study medications. Crossover Visit - Update medical history, complete physical exam, review of current medications, weight, vital signs, fasting laboratory (blood and urine) tests, collect insulin usage, download CGM data and start opposite doses of medication. Visit 10 - Complete vitals, weight, dose 2 of REMD-477/Placebo, review CGM data and insulin dosing. Visit 11 - Complete vitals, weight, dose 3 of REMD-477/Placebo, review CGM data and insulin dosing. Visit 12 - Complete vitals, weight, dose 4 of REMD-477/Placebo, review CGM data and insulin dosing. Final Measures 1 - Complete vitals, weight, physical exam, fasting blood collection, download CGM data, collect insulin usage, complete measurements of blood vessels using EndoPat and ultrasound, complete diabetes questionnaires, and complete fat and muscle biopsies. Final Measures 2 - Complete vitals, weight, fasting blood collection, insulin withdraw procedure and review CGM data/insulin dosing for return to pre-baseline diabetes treatment. Safety Follow-up - Complete vitals, physical exam, weight, and review CGM data/insulin dosing to verify diabetes treatment is stable.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Type 1 Diabetes

7. Study Design

Primary Purpose
Basic Science
Study Phase
Phase 1, Phase 2
Interventional Study Model
Crossover Assignment
Model Description
Single-center, randomized, double-blind, cross-over, multi-dose study.
Masking
ParticipantCare ProviderInvestigator
Masking Description
Double-blind
Allocation
Randomized
Enrollment
12 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Treatment A
Arm Type
Active Comparator
Arm Description
Daily, Oral,10mg dapagliflozin in combination with Weekly, Subcutaneous, 35mg in 1mL solution REMD-477
Arm Title
Treatment B
Arm Type
Placebo Comparator
Arm Description
Daily, Oral,10mg dapagliflozin in combination with Weekly, Subcutaneous, 1mL solution Placebo
Intervention Type
Drug
Intervention Name(s)
Dapagliflozin 10 MG [Farxiga]
Intervention Description
4-Week, double-blind, once daily oral 10mg dapagliflozin
Intervention Type
Drug
Intervention Name(s)
REMD-477
Intervention Description
4-Week, double-blind, once weekly subcutaneous injection with 35mg REMD-477 in 1mL solution.
Intervention Type
Drug
Intervention Name(s)
Placebo
Intervention Description
4-Week, double-blind, once weekly subcutaneous injection with placebo in 1mL solution.
Primary Outcome Measure Information:
Title
Change in Beta-hydroxybutyrate (BHB) Level
Description
The change from baseline in peak BHB production as measured by the insulin withdrawal challenge.
Time Frame
4-Weeks
Title
Change in Glycemic Control
Description
The change from baseline glycemic control as measured by a 2-week average of CGM "time-in-range".
Time Frame
4-Weeks
Title
Change in Glycemic Control
Description
The change from baseline glycemic control as measured by HbA1c.
Time Frame
4-Weeks
Title
Change in Vascular Endothelial Function
Description
The change from baseline in vascular endothelial function as measured by flow mediated dilation (brachial artery diameter).
Time Frame
4-Weeks
Title
Change in Vascular Endothelial Function
Description
The change from baseline in vascular endothelial function as measured by reactive hyperemia-peripheral arterial tonometry (reactive hyperemia index).
Time Frame
4-Weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
65 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Men and women between the ages of 18 and 65 years old, inclusive, at the time of screening; Females of non-child bearing potential must be ≥ 1 year post-menopausal or documented as being surgically sterile. Females of child bearing potential must agree to use two methods of contraception during the entire study and for an additional 3 months after the end of dosing with the investigational product; Male subjects must be willing to use clinically acceptable method of contraception during the entire study and for an additional 6 months after the end of the treatment period; Diagnosed with Type 1 diabetes based on clinical history or as defined by the current American Diabetes Association (ADA) criteria for > 5 years; Treatment with a stable insulin regimen (< 1u/kg per day) for at least 8 weeks before screening with continuous subcutaneous insulin infusion (CSII) via an insulin pump; Currently using a Continuous Glucose Monitoring (CGM) system HbA1c ≤ 9 % at screening; A minimum weight of 50kg; eGFR ≥ 60 mL/min/1.73m² Able to provide written informed consent approved by an Institutional Review Board (IRB). 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 Occurrence of symptomatic hypotension within 3 months prior to Visit 1 (Screen) or Visit 2 Occurrence of multiple genital mycotic infections within 6 months prior to Visit 1 (Screen) 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. Active eating disorders such as bulimia or anorexia nervosa Body Mass Index (BMI) < 18.5 kg/m2 and/or weight less than 50kg; Whole blood donation of 1 pint (500 mL) within 8 weeks prior to Screening. Donations of plasma, packed RBCs, platelets or quantities less than 500 mL are allowed at investigator discretion; 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 bladder cancer or treatment for any 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

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Combination GRA and SGLT-2i Treatment in Type 1 Diabetes

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