Recruitment

Recruitment Status
Completed

Inclusion Criterias

Prescription medication regimen stable for > 1 month (except for medications that will not affect the safety of the study and are not expected to affect any outcome of the study, in the judgement of the site principal investigator).
Willing to remain within a 60 minute drive-time radius of the central monitoring location for one of the study sites during each of the 11-day study arms
Employee or student working or studying during most of the week at one of the participating campuses (Massachusetts General Hospital in Boston, MA; University of Massachusetts Medical Center in Worcester, MA; University of North Carolina in Chapel Hill, NC; Stanford University in Palo Alto, CA)
...
Prescription medication regimen stable for > 1 month (except for medications that will not affect the safety of the study and are not expected to affect any outcome of the study, in the judgement of the site principal investigator).
Willing to remain within a 60 minute drive-time radius of the central monitoring location for one of the study sites during each of the 11-day study arms
Employee or student working or studying during most of the week at one of the participating campuses (Massachusetts General Hospital in Boston, MA; University of Massachusetts Medical Center in Worcester, MA; University of North Carolina in Chapel Hill, NC; Stanford University in Palo Alto, CA)
Willing to wear two infusion sets and continuous glucose monitor (CGM) sensor and change sets frequently (at least one new glucagon infusion set daily)
Age ≥18 years and have had clinical type 1 diabetes for at least one year
Diabetes managed using an insulin pump for ≥ 6 months
Have someone over 18 years of age who lives with them, has access to where they sleep, is willing to be in the house when the subject is sleeping, and is willing to receive calls from the study staff and check the welfare of the study subject if telemetry shows a technical problem or severe biochemical hypoglycemia without subject response and the subject does not answer their telephone (up to two individuals can share this role, but they must be willing to carefully coordinate with each other and the subject so that one of them is clearly designated as having this responsibility at any given time)
Lives within a 30 minute drive-time radius of the central monitoring location for one of the study sites

Exclusion Criterias

Established history of allergy or severe reaction to adhesive or tape that must be used in the study
episodic or treatment refractory (requiring 4 or more medications to achieve normotension) hypertension
Need to go outside of the designated geographic boundaries during either arm of the study
...
Established history of allergy or severe reaction to adhesive or tape that must be used in the study
episodic or treatment refractory (requiring 4 or more medications to achieve normotension) hypertension
Need to go outside of the designated geographic boundaries during either arm of the study
Unable to safely comply with study procedures and reporting requirements (e.g. impairment of vision or dexterity that prevents safe operation of the bionic pancreas, impaired memory, unable to speak and read English)
Unwilling or unable or to avoid use of drugs that may dull the sensorium, reduce sensitivity to symptoms of hypoglycemia, or hinder decision making during the period of participation in the study (use of beta blockers will be allowed as long as the dose is stable and the subject does not meet the criteria for hypoglycemia unawareness while taking that stable dose, but use of benzodiazepines or narcotics, even if by prescription, may be excluded according to the judgment of the principal investigator)
Renal failure on dialysis
History of eating disorder such as anorexia, bulimia, or diabulemia or omission of insulin to manipulate weight
Any known history of coronary artery disease including, but not limited to, history of myocardial infarction, stress test showing ischemia, history of angina, or history of intervention such as coronary artery bypass grafting, percutaneous coronary intervention, or enzymatic lysis of a presumed coronary occlusion)
Congestive heart failure (CHF) [established history of CHF, lower extremity edema, paroxysmal nocturnal dyspnea, or orthopnea]
personal or family history of multiple endocrine neoplasia type 2A (MEN 2A), multiple endocrine neoplasia type 2B (MEN 2B), neurofibromatosis, or von Hippel-Lindau disease
Unable to provide informed consent (e.g. impaired cognition or judgment)
paroxysms of tachycardia, pallor, or headache
Current participation in another diabetes-related clinical trial that, in the judgment of the principal investigator, will compromise the results of this study or the safety of the subject
History of adrenal disease or tumor
Any factors that, in the opinion of the site principal investigator or overall principal investigator, would interfere with the safe completion of the study
Unwilling or unable to refrain from drinking more than 2 drinks in an hour or more than 4 drinks in a day or use of marijuana during the trial
Lives in or frequents areas with poor Verizon wireless network coverage (which would prevent remote monitoring)
Personal history of cystic fibrosis, pancreatitis, pancreatic tumor, or any other pancreatic disease besides type 1 diabetes
Current alcohol abuse (intake averaging > 3 drinks daily in last 30 days), use of marijuana within 1 month of enrollment, or other substance abuse (use within the last 6 months of controlled substances other than marijuana without a prescription)
History of intentional, inappropriate administration of insulin leading to severe hypoglycemia requiring treatment
Untreated or inadequately treated mental illness (indicators would include symptoms such as psychosis, hallucinations, mania, and any psychiatric hospitalization in the last year), or treatment with anti-psychotic medications that are known to affect glucose regulation.
Use oral [e.g. thiazolidinediones, biguanides, sulfonylureas, glitinides, dipeptidyl peptidase-4 (DPP-4) inhibitors, sodium-glucose co-transporter 2 (SGLT-2) inhibitors] anti-diabetic medications
History of transient ischaemic attack (TIA) or stroke
Electrically powered implants (e.g. cochlear implants, neurostimulators) that might be susceptible to radio-frequency (RF) interference
Unable to completely avoid acetaminophen for duration of study
Hypertension with systolic blood pressure (BP) ≥160 mm Hg or diastolic BP ≥100 despite treatment
Abnormal electrocardiogram (EKG) consistent with coronary artery disease or increased risk of malignant arrhythmia including, but not limited to, evidence of active ischemia, prior myocardial infarction, proximal left anterior descending coronary artery (LAD) critical stenosis (Wellen's sign), prolonged QT interval (> 440 ms). Non-specific ST segment and T wave changes are not grounds for exclusion in the absence of symptoms or history of heart disease. A reassuring evaluation by a cardiologist after an abnormal EKG finding may allow participation.
History of hypoglycemic seizures or coma in the last year
Seizure disorder, history of any non-hypoglycemic seizure within the last two years, or ongoing treatment with anticonvulsants
History of adverse reaction to glucagon (including allergy) besides nausea and vomiting
Pregnancy [positive urine human chorionic gonadotropin (HCG)] breast feeding, plan to become pregnant in the immediate future, or sexually active without use of contraception
History of liver disease that is expected to interfere with the anti-hypoglycemia action of glucagon (e.g. liver failure or cirrhosis). Other liver disease (i.e. active hepatitis, steatosis, active biliary disease, any tumor of the liver, hemochromatosis, glycogen storage disease) may exclude the subject if it causes significant compromise to liver function or may do so in an unpredictable fashion.

Summary

Conditions
Diabetes Mellitus Type 1
Type
Interventional
Design
  • Allocation: Randomized
  • Intervention Model: Crossover Assignment
  • Masking: None (Open Label)
  • Primary Purpose: Treatment

Participation Requirements

Age
Between 18 years and 125 years
Gender
Both males and females

Inclusion Criterias

Prescription medication regimen stable for > 1 month (except for medications that will not affect the safety of the study and are not expected to affect any outcome of the study, in the judgement of the site principal investigator).
Willing to remain within a 60 minute drive-time radius of the central monitoring location for one of the study sites during each of the 11-day study arms
Employee or student working or studying during most of the week at one of the participating campuses (Massachusetts General Hospital in Boston, MA; University of Massachusetts Medical Center in Worcester, MA; University of North Carolina in Chapel Hill, NC; Stanford University in Palo Alto, CA)
...
Prescription medication regimen stable for > 1 month (except for medications that will not affect the safety of the study and are not expected to affect any outcome of the study, in the judgement of the site principal investigator).
Willing to remain within a 60 minute drive-time radius of the central monitoring location for one of the study sites during each of the 11-day study arms
Employee or student working or studying during most of the week at one of the participating campuses (Massachusetts General Hospital in Boston, MA; University of Massachusetts Medical Center in Worcester, MA; University of North Carolina in Chapel Hill, NC; Stanford University in Palo Alto, CA)
Willing to wear two infusion sets and continuous glucose monitor (CGM) sensor and change sets frequently (at least one new glucagon infusion set daily)
Age ≥18 years and have had clinical type 1 diabetes for at least one year
Diabetes managed using an insulin pump for ≥ 6 months
Have someone over 18 years of age who lives with them, has access to where they sleep, is willing to be in the house when the subject is sleeping, and is willing to receive calls from the study staff and check the welfare of the study subject if telemetry shows a technical problem or severe biochemical hypoglycemia without subject response and the subject does not answer their telephone (up to two individuals can share this role, but they must be willing to carefully coordinate with each other and the subject so that one of them is clearly designated as having this responsibility at any given time)
Lives within a 30 minute drive-time radius of the central monitoring location for one of the study sites

Exclusion Criterias

Established history of allergy or severe reaction to adhesive or tape that must be used in the study
episodic or treatment refractory (requiring 4 or more medications to achieve normotension) hypertension
Need to go outside of the designated geographic boundaries during either arm of the study
...
Established history of allergy or severe reaction to adhesive or tape that must be used in the study
episodic or treatment refractory (requiring 4 or more medications to achieve normotension) hypertension
Need to go outside of the designated geographic boundaries during either arm of the study
Unable to safely comply with study procedures and reporting requirements (e.g. impairment of vision or dexterity that prevents safe operation of the bionic pancreas, impaired memory, unable to speak and read English)
Unwilling or unable or to avoid use of drugs that may dull the sensorium, reduce sensitivity to symptoms of hypoglycemia, or hinder decision making during the period of participation in the study (use of beta blockers will be allowed as long as the dose is stable and the subject does not meet the criteria for hypoglycemia unawareness while taking that stable dose, but use of benzodiazepines or narcotics, even if by prescription, may be excluded according to the judgment of the principal investigator)
Renal failure on dialysis
History of eating disorder such as anorexia, bulimia, or diabulemia or omission of insulin to manipulate weight
Any known history of coronary artery disease including, but not limited to, history of myocardial infarction, stress test showing ischemia, history of angina, or history of intervention such as coronary artery bypass grafting, percutaneous coronary intervention, or enzymatic lysis of a presumed coronary occlusion)
Congestive heart failure (CHF) [established history of CHF, lower extremity edema, paroxysmal nocturnal dyspnea, or orthopnea]
personal or family history of multiple endocrine neoplasia type 2A (MEN 2A), multiple endocrine neoplasia type 2B (MEN 2B), neurofibromatosis, or von Hippel-Lindau disease
Unable to provide informed consent (e.g. impaired cognition or judgment)
paroxysms of tachycardia, pallor, or headache
Current participation in another diabetes-related clinical trial that, in the judgment of the principal investigator, will compromise the results of this study or the safety of the subject
History of adrenal disease or tumor
Any factors that, in the opinion of the site principal investigator or overall principal investigator, would interfere with the safe completion of the study
Unwilling or unable to refrain from drinking more than 2 drinks in an hour or more than 4 drinks in a day or use of marijuana during the trial
Lives in or frequents areas with poor Verizon wireless network coverage (which would prevent remote monitoring)
Personal history of cystic fibrosis, pancreatitis, pancreatic tumor, or any other pancreatic disease besides type 1 diabetes
Current alcohol abuse (intake averaging > 3 drinks daily in last 30 days), use of marijuana within 1 month of enrollment, or other substance abuse (use within the last 6 months of controlled substances other than marijuana without a prescription)
History of intentional, inappropriate administration of insulin leading to severe hypoglycemia requiring treatment
Untreated or inadequately treated mental illness (indicators would include symptoms such as psychosis, hallucinations, mania, and any psychiatric hospitalization in the last year), or treatment with anti-psychotic medications that are known to affect glucose regulation.
Use oral [e.g. thiazolidinediones, biguanides, sulfonylureas, glitinides, dipeptidyl peptidase-4 (DPP-4) inhibitors, sodium-glucose co-transporter 2 (SGLT-2) inhibitors] anti-diabetic medications
History of transient ischaemic attack (TIA) or stroke
Electrically powered implants (e.g. cochlear implants, neurostimulators) that might be susceptible to radio-frequency (RF) interference
Unable to completely avoid acetaminophen for duration of study
Hypertension with systolic blood pressure (BP) ≥160 mm Hg or diastolic BP ≥100 despite treatment
Abnormal electrocardiogram (EKG) consistent with coronary artery disease or increased risk of malignant arrhythmia including, but not limited to, evidence of active ischemia, prior myocardial infarction, proximal left anterior descending coronary artery (LAD) critical stenosis (Wellen's sign), prolonged QT interval (> 440 ms). Non-specific ST segment and T wave changes are not grounds for exclusion in the absence of symptoms or history of heart disease. A reassuring evaluation by a cardiologist after an abnormal EKG finding may allow participation.
History of hypoglycemic seizures or coma in the last year
Seizure disorder, history of any non-hypoglycemic seizure within the last two years, or ongoing treatment with anticonvulsants
History of adverse reaction to glucagon (including allergy) besides nausea and vomiting
Pregnancy [positive urine human chorionic gonadotropin (HCG)] breast feeding, plan to become pregnant in the immediate future, or sexually active without use of contraception
History of liver disease that is expected to interfere with the anti-hypoglycemia action of glucagon (e.g. liver failure or cirrhosis). Other liver disease (i.e. active hepatitis, steatosis, active biliary disease, any tumor of the liver, hemochromatosis, glycogen storage disease) may exclude the subject if it causes significant compromise to liver function or may do so in an unpredictable fashion.

Locations

Boston, Massachusetts, 02114
Worcester, Massachusetts, 01655
Stanford, California, 94305
Chapel Hill, North Carolina, 27514
...
Boston, Massachusetts, 02114
Worcester, Massachusetts, 01655
Stanford, California, 94305
Chapel Hill, North Carolina, 27514

Tracking Information

NCT #
NCT02092220
Collaborators
Boston University
Investigators
  • Principal Investigator: Steven J Russell, MD, PhD Massachusetts General Hospital
  • Steven J Russell, MD, PhD Massachusetts General Hospital