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Pilot Study Investigating the Feasibility of Determining the Endogenous Glucose Production During a Hypoglycaemia (PILOT_EGP)

Primary Purpose

Type 1 Diabetes Mellitus

Status
Completed
Phase
Phase 2
Locations
Austria
Study Type
Interventional
Intervention
Insulin human
Sponsored by
Medical University of Graz
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional basic science trial for Type 1 Diabetes Mellitus focused on measuring Endogenous glucose production, Type 1 diabetes mellitus, hypoglycaemic clamp, tracer to technique, pharmacodynamics, pharmacokinetics

Eligibility Criteria

18 Years - 64 Years (Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

1.)Informed consent obtained before any trial-related activities. Trial-related activities are any procedures that are carried out as part of the trial, including activities to determine suitability for the trial.

2. )Type 1 diabetes mellitus (as diagnosed clinically) ≥ 12 months prior to screening visit 3.)Male or female, aged 18 - 64 years (both inclusive) 4.) Body mass index (BMI) 18.0 - 28.0 kg/m2 (both inclusive) 5.) HbA1c 42 - 80 mmol/mol (6.0-9.5%) 6. )Treated with daily insulin injections or continuous s.c. insulin infusion (CSII) ≥ 12 months. Stable insulin dose as judged by the investigator.

Exclusion Criteria:

  1. Known or suspected hypersensitivity to trial product(s) or related products
  2. Recurrent severe hypoglycaemia (more than 1 severe hypoglycaemic event during the last 12 months) as judged by the investigator
  3. Severe hypoglycaemia within 1 month of screening
  4. Hypoglycaemia unawareness as judged by the Investigator or hospitalisation for diabetic ketoacidosis during the previous 6 months
  5. Clinically significant abnormal haematology, biochemistry, lipids, or urinalysis or coagulation screening tests, as judged by the investigator and any of the following laboratory safety results:

    1. ASAT, ALAT, lipase, alkaline phosphatase > 2.0 times upper limit of reference range (ULN)
    2. Haemoglobin < 8.0 mmol/L (male) or < 6.4 mmol/L (female), total leukocyte count < 3.0 x 109/L, thrombocytes <100 x 109/L
    3. Serum creatinine levels ≥ 126 μmol/L (male) or ≥ 111 μmol/L (female)
  6. Suffer from or history of a life threatening disease (e.g. cancer except basal cell skin cancer or squamous cell skin cancer), or any clinically significant respiratory, metabolic, renal, hepatic, gastrointestinal, endocrinological (with the exception of diabetes mellitus and euthyroid struma), haematological, dermatological, venereal, neurological, psychiatric diseases or other major disorders as judged by the investigator.
  7. Cardiac problems defined as decompensated heart failure (New York Heart Association (NYHA) class III and IV) at any time and/or angina pectoris within the last 12 months prior to screening and/or acute myocardial infarction at any time.
  8. Supine blood pressure at screening (after resting for 5 min) outside the range of 90-140 mmHg for systolic or 50-90 mmHg for diastolic (repeated measurement on a second screening visit allowed to exclude white-coat hypertension). This exclusion criterion also pertains to subjects being on antihypertensives.
  9. Clinically significant abnormal ECG at screening, as judged by the investigator.
  10. Proliferative retinopathy or maculopathy and/or severe neuropathy, in particular autonomic neuropathy, as judged by the investigator.
  11. Any disease or condition that, in the opinion of the investigator, would represent an unacceptable risk for the subject's safety.
  12. Subject positive for Hepatitis B surface antigen (HBsAg) or Hepatitis C antibodies (or diagnosed with active hepatitis according to local practice).
  13. Positive result of the screening test for HIV-1 antibodies, HIV-2 antibodies and/or HIV-1 antigen according to locally used diagnostic testing.
  14. History of multiple and/or severe allergies to drugs or foods or a history of severe anaphylactic reaction.
  15. Subject who has donated any blood or plasma in the past month or more than 500 mL within 3 months prior to screening.
  16. Surgery or trauma with significant blood loss (more than 500 mL) within the last 3 months prior to screening.
  17. Current treatment with systemic (oral or i.v.) corticosteroids, MAO inhibitors, nonselective beta-blockers, growth hormone, herbal products or non-routine vitamins. Furthermore, thyroid hormones are not allowed unless the use of these has been stable during the past 3 months prior to screening.
  18. Significant history of alcoholism or drug/chemical abuse as per investigator's judgement or a positive result in the drug/alcohol screen at the screening visit.
  19. Smoker (defined as a subject who is smoking more than 5 cigarettes or the equivalent per day)
  20. Not able or willing to refrain from smoking and use of nicotine gum or transdermal nicotine patches during the inpatient period.
  21. Subject with mental incapacity or language barriers precluding adequate understanding or co-operation or who, in the opinion of the investigator, should not participate in the trial.
  22. Potentially non-compliant or uncooperative during the trial, as judged by the investigator.
  23. Any condition that would interfere with trial participation or evaluation of results, as judged by the investigator.
  24. Female of child-bearing potential who is pregnant, breast-feeding or intend to become pregnant or is not using adequate contraceptive methods (adequate contraceptive methods include sterilisation, hormonal intrauterine devices, oral contraceptives, sexual abstinence or vasectomised partner).
  25. Use of drugs, which may interfere with the interpretation of trial results or are known to cause clinically relevant interference with insulin action, glucose utilisation, or recovery from hypoglycaemia
  26. Severe acute and/or chronic diseases
  27. Diseases of the skin which could interfere with application of the catheters as judged by the investigator
  28. Previous participation in this trial. Participation is defined as randomised.
  29. Receipt of any investigational medicinal product within 3 months before randomisation in this trial.

Sites / Locations

  • Medical University of Graz

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

Insulin human (Actrapid)

Arm Description

At 22:00 subject will receive insulin human (Actrapid) intravenously in order to obtain a steady state of a PG level of 5.5 mmol/L overnight until approximately 08:00 in the morning of day 2. At 8:00 am, in the morning at day 2, human insulin infusion will be increased to 1.5 mU/kg/min for each subject until approx. 12 pm for hypoglycaemia induction.

Outcomes

Primary Outcome Measures

Tracer to Tracee Ratio (the absolute relative difference ARDi )

Secondary Outcome Measures

Tracer to tracee Ratio
For each subject, the mean absolute relative difference (MARD) of the tracer to tracee ratio (4% enrichment) during variable Glucose Infusion Rate from the begin of the experiment until the end of the hypoglycaemic clamp.

Full Information

First Posted
January 3, 2014
Last Updated
September 9, 2016
Sponsor
Medical University of Graz
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1. Study Identification

Unique Protocol Identification Number
NCT02028078
Brief Title
Pilot Study Investigating the Feasibility of Determining the Endogenous Glucose Production During a Hypoglycaemia
Acronym
PILOT_EGP
Official Title
An Open, Non-randomized, Single-center Pilot Study Investigating the Feasibility of Determining the Endogenous Glucose Production During a Hypoglycaemic Clamp in Type 1 Diabetes Mellitus Subjects
Study Type
Interventional

2. Study Status

Record Verification Date
September 2016
Overall Recruitment Status
Completed
Study Start Date
January 2014 (undefined)
Primary Completion Date
March 2016 (Actual)
Study Completion Date
March 2016 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
Medical University of Graz

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
Primary objective is to investigate the feasibility and stability of determining the endogenous glucose production during a hypoglycaemic clamp in type 1 diabetes mellitus subjects by a stable tracer to tracee ratio with an enrichment of 4% and a variation below +/-30%. Population: twenty type 1 diabetic subjects Study design: Single-center, open, non- randomized, pilot-study
Detailed Description
Each subject will participate on 3 Visits. The total study duration for each subject will be approximately one month.The trial can be divided into: Screening Visit (Visit 1) Hypoglycaemic clamp Visit (Visit 2) Follow up Visit (Visit 3) Screening Visit (Visit1): The subject will be asked to attend the screening visit fasting. The following data will be assessed and performed: informed consent signed and dated, inclusion and exclusion criteria for the study, a full medical history including current medication, physical examination and laboratory examination of blood/urine samples. For women in childbearing potential a urine pregnancy test will be performed. Hypoglycaemic Visit (Visit2): Each subject will be asked to attend the clinical unit at approximately 20:00 in the evening on day 1. Thereafter the subject will receive an insulin and glucose infusion intravenously in order to obtain a steady state of a PG level of 5.5 mmol/L overnight until approximately 08:00 in the morning of day 2. At 05:00 hours D-[6,6-2H2] glucose (100 g/l) solution will be given i.v. as a primed (9.6 mg/kg/min) for one minute and a constant (0.08 mg/kg/min) infusion until the last blood sampling of the plasma glucose level of 4.0 mmol/L will be performed. At 08:00 hours in the morning at day 2, insulin infusion will be increased to 1.5 mU/kg/min for each subject and the Plasma Glucose will be kept at a plateau of 5.5 mmol/L by a controlled variable intravenous infusion of glucose (10% glucose enriched with 4mg [6,6-2H2] glucose /ml) for one hour. Afterwards, plasma glucose is allowed to fall to a plateau of 3.5 mmol/L, then to a nadir of 2.5 mmol/L, then to a blood glucose level of 4.0 mmol/L and finally back to a level of 5.5 mmol/L for safety reasons. Blood sampling for measurement of plasma glucose, [6,6-2H2] glucose (labelled glucose),glucagon, vital signs, hypoglycaemic symptoms questionnaire and hypoglycaemic awareness will be performed at each plasma glucose plateau. The subject will be discharged from the clinic at day 2, or later if deemed necessary by the investigator. Follow up Visit (Visit 3): The subject will attend the Visit 3, 3 - 10 days after Visit 2. The following data will be assessed and performed: concomitant medication, including current diabetes treatment, adverse events, a full physical examination and laboratory examination of blood/urine samples. For women in childbearing potential a urine pregnancy test will be performed.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Type 1 Diabetes Mellitus
Keywords
Endogenous glucose production, Type 1 diabetes mellitus, hypoglycaemic clamp, tracer to technique, pharmacodynamics, pharmacokinetics

7. Study Design

Primary Purpose
Basic Science
Study Phase
Phase 2
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
20 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Insulin human (Actrapid)
Arm Type
Experimental
Arm Description
At 22:00 subject will receive insulin human (Actrapid) intravenously in order to obtain a steady state of a PG level of 5.5 mmol/L overnight until approximately 08:00 in the morning of day 2. At 8:00 am, in the morning at day 2, human insulin infusion will be increased to 1.5 mU/kg/min for each subject until approx. 12 pm for hypoglycaemia induction.
Intervention Type
Drug
Intervention Name(s)
Insulin human
Other Intervention Name(s)
Actrapid
Intervention Description
Induces hypoglycaemia
Primary Outcome Measure Information:
Title
Tracer to Tracee Ratio (the absolute relative difference ARDi )
Time Frame
8 hours
Secondary Outcome Measure Information:
Title
Tracer to tracee Ratio
Description
For each subject, the mean absolute relative difference (MARD) of the tracer to tracee ratio (4% enrichment) during variable Glucose Infusion Rate from the begin of the experiment until the end of the hypoglycaemic clamp.
Time Frame
8 hours
Other Pre-specified Outcome Measures:
Title
Time to reach each hypoglycaemic level
Description
The stability of the tracer to tracee ratio during constant insulin infusion rate and for the different plateau levels (5.5, 3.5 and 2.5 mmol/L and for the recovery phase 4.0 mmol/L) will be investigated in an analog way.
Time Frame
8 hours

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
64 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: 1.)Informed consent obtained before any trial-related activities. Trial-related activities are any procedures that are carried out as part of the trial, including activities to determine suitability for the trial. 2. )Type 1 diabetes mellitus (as diagnosed clinically) ≥ 12 months prior to screening visit 3.)Male or female, aged 18 - 64 years (both inclusive) 4.) Body mass index (BMI) 18.0 - 28.0 kg/m2 (both inclusive) 5.) HbA1c 42 - 80 mmol/mol (6.0-9.5%) 6. )Treated with daily insulin injections or continuous s.c. insulin infusion (CSII) ≥ 12 months. Stable insulin dose as judged by the investigator. Exclusion Criteria: Known or suspected hypersensitivity to trial product(s) or related products Recurrent severe hypoglycaemia (more than 1 severe hypoglycaemic event during the last 12 months) as judged by the investigator Severe hypoglycaemia within 1 month of screening Hypoglycaemia unawareness as judged by the Investigator or hospitalisation for diabetic ketoacidosis during the previous 6 months Clinically significant abnormal haematology, biochemistry, lipids, or urinalysis or coagulation screening tests, as judged by the investigator and any of the following laboratory safety results: ASAT, ALAT, lipase, alkaline phosphatase > 2.0 times upper limit of reference range (ULN) Haemoglobin < 8.0 mmol/L (male) or < 6.4 mmol/L (female), total leukocyte count < 3.0 x 109/L, thrombocytes <100 x 109/L Serum creatinine levels ≥ 126 μmol/L (male) or ≥ 111 μmol/L (female) Suffer from or history of a life threatening disease (e.g. cancer except basal cell skin cancer or squamous cell skin cancer), or any clinically significant respiratory, metabolic, renal, hepatic, gastrointestinal, endocrinological (with the exception of diabetes mellitus and euthyroid struma), haematological, dermatological, venereal, neurological, psychiatric diseases or other major disorders as judged by the investigator. Cardiac problems defined as decompensated heart failure (New York Heart Association (NYHA) class III and IV) at any time and/or angina pectoris within the last 12 months prior to screening and/or acute myocardial infarction at any time. Supine blood pressure at screening (after resting for 5 min) outside the range of 90-140 mmHg for systolic or 50-90 mmHg for diastolic (repeated measurement on a second screening visit allowed to exclude white-coat hypertension). This exclusion criterion also pertains to subjects being on antihypertensives. Clinically significant abnormal ECG at screening, as judged by the investigator. Proliferative retinopathy or maculopathy and/or severe neuropathy, in particular autonomic neuropathy, as judged by the investigator. Any disease or condition that, in the opinion of the investigator, would represent an unacceptable risk for the subject's safety. Subject positive for Hepatitis B surface antigen (HBsAg) or Hepatitis C antibodies (or diagnosed with active hepatitis according to local practice). Positive result of the screening test for HIV-1 antibodies, HIV-2 antibodies and/or HIV-1 antigen according to locally used diagnostic testing. History of multiple and/or severe allergies to drugs or foods or a history of severe anaphylactic reaction. Subject who has donated any blood or plasma in the past month or more than 500 mL within 3 months prior to screening. Surgery or trauma with significant blood loss (more than 500 mL) within the last 3 months prior to screening. Current treatment with systemic (oral or i.v.) corticosteroids, MAO inhibitors, nonselective beta-blockers, growth hormone, herbal products or non-routine vitamins. Furthermore, thyroid hormones are not allowed unless the use of these has been stable during the past 3 months prior to screening. Significant history of alcoholism or drug/chemical abuse as per investigator's judgement or a positive result in the drug/alcohol screen at the screening visit. Smoker (defined as a subject who is smoking more than 5 cigarettes or the equivalent per day) Not able or willing to refrain from smoking and use of nicotine gum or transdermal nicotine patches during the inpatient period. Subject with mental incapacity or language barriers precluding adequate understanding or co-operation or who, in the opinion of the investigator, should not participate in the trial. Potentially non-compliant or uncooperative during the trial, as judged by the investigator. Any condition that would interfere with trial participation or evaluation of results, as judged by the investigator. Female of child-bearing potential who is pregnant, breast-feeding or intend to become pregnant or is not using adequate contraceptive methods (adequate contraceptive methods include sterilisation, hormonal intrauterine devices, oral contraceptives, sexual abstinence or vasectomised partner). Use of drugs, which may interfere with the interpretation of trial results or are known to cause clinically relevant interference with insulin action, glucose utilisation, or recovery from hypoglycaemia Severe acute and/or chronic diseases Diseases of the skin which could interfere with application of the catheters as judged by the investigator Previous participation in this trial. Participation is defined as randomised. Receipt of any investigational medicinal product within 3 months before randomisation in this trial.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Thomas R. Pieber, MD
Organizational Affiliation
Medical University of Graz, Internal Medicine, Endocrinology and Metabolism
Official's Role
Principal Investigator
Facility Information:
Facility Name
Medical University of Graz
City
Graz
State/Province
Styria
ZIP/Postal Code
8036
Country
Austria

12. IPD Sharing Statement

Citations:
PubMed Identifier
29408994
Citation
Zenz S, Mader JK, Regittnig W, Brunner M, Korsatko S, Boulgaropoulos B, Magnes C, Raml R, Narath SH, Eller P, Augustin T, Pieber TR. Impact of C-Peptide Status on the Response of Glucagon and Endogenous Glucose Production to Induced Hypoglycemia in T1DM. J Clin Endocrinol Metab. 2018 Apr 1;103(4):1408-1417. doi: 10.1210/jc.2017-01836.
Results Reference
derived
Links:
URL
http://www.medunigraz.at
Description
Medical University of Graz

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Pilot Study Investigating the Feasibility of Determining the Endogenous Glucose Production During a Hypoglycaemia

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