NCT02604524

Brief Summary

The biggest challenges for glycemic control during the day time involve meals and exercise variations, which are impacted by age, fitness level, duration, intensity and history of exercise. Meal variability has the benefit that meals are typically announced and quantified. Glucose control around exercise, on the other hand, is more complicated if the patient doesn't announce a change in activity level.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
32

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jan 2016

Shorter than P25 for not_applicable

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 6, 2015

Completed
7 days until next milestone

First Posted

Study publicly available on registry

November 13, 2015

Completed
2 months until next milestone

Study Start

First participant enrolled

January 1, 2016

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2016

Completed
Last Updated

September 19, 2018

Status Verified

November 1, 2017

Enrollment Period

3 months

First QC Date

November 6, 2015

Last Update Submit

September 17, 2018

Conditions

Keywords

Type 1 Diabetes Mellitus (T1DM)Artificial Pancreas (AP)Sensor-Augmented Pump (SAP) TherapyClosed Loop ControlInsulin PumpContinuous Glucose Monitor (CGM)

Outcome Measures

Primary Outcomes (1)

  • Time in range when using closed-loop compared with SAP.

    120-144 hours

Secondary Outcomes (1)

  • Reduction of hypoglycemia episodes when using closed-loop

    120-144 hours

Study Arms (2)

Closed-Loop Control (CLC) System

EXPERIMENTAL

Subjects will use the Closed-Loop Control system in an attempt to maintain blood glucose in a certain range during the day and at night during the trial.

Device: Closed-Loop Control

Sensor Augmented Pump Therapy Group

PLACEBO COMPARATOR

Subjects will manage their own glucose levels during the trial.

Other: Sensor Augmented Pump Therapy

Interventions

Subjects will use the CLC during 5 nights/6 days at a ski camp.

Also known as: CLC
Closed-Loop Control (CLC) System

Subjects using their personal pumps with study CGM.

Also known as: SAP
Sensor Augmented Pump Therapy Group

Eligibility Criteria

Age10 Years - 25 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Criteria for documented hyperglycemia (at least 1 must be met):
  • Clinical diagnosis of type 1 diabetes (C-peptide levels and antibody determinations are not required)
  • The diagnosis of type 1 diabetes is based on the investigator's judgment
  • Criteria for requiring insulin at diagnosis (both criteria must be met):
  • Daily insulin therapy for ≥ 12 months
  • Insulin pump therapy for ≥ 3 months
  • Age 10 - 25 years
  • Avoidance of acetaminophen-containing medications (i.e. Tylenol) while wearing the continuous glucose monitor.
  • Willingness to wear a continuous glucose sensor and physiological monitor for the duration of the study
  • Female subjects who are sexually active must be on acceptable method of contraception (e.g. oral contraceptive pill, diaphragm, IUD)

You may not qualify if:

  • Diabetic ketoacidosis in the past 6 months
  • Hypoglycemic seizure or loss of consciousness in the past 6 months
  • History of seizure disorder (except for hypoglycemic seizure)
  • History of any heart disease including coronary artery disease, heart failure, or arrhythmias
  • History of altitude sickness
  • Chronic pulmonary conditions that could impair oxygenation
  • Cystic fibrosis
  • Current use of oral glucocorticoids, beta-blockers or other medications, which in the judgment of the investigator would be a contraindication to participation in the study.
  • History of ongoing renal disease (other than microalbuminuria).
  • Subjects requiring intermediate or long-acting insulin (such as NPH, Detemir or Glargine).
  • Subjects requiring other anti-diabetic medications other than insulin (oral or injectable).
  • Pregnancy
  • Sexually active females who do not practice acceptable contraceptive methods to prevent pregnancy.
  • Presence of a febrile illness within 24 hours of start ski camp or acetaminophen use while wearing the CGM. The camp study subject will not participate in the trial if these conditions are met.
  • Medical or psychiatric condition that in the judgment of the investigator might interfere with the completion of the protocol such as:
  • +3 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

University of Colorado, Denver, Barbara Davis Center

Aurora, Colorado, 80045, United States

Location

University of Virginia

Charlottesville, Virginia, 22903, United States

Location

Related Publications (1)

  • Breton MD, Chernavvsky DR, Forlenza GP, DeBoer MD, Robic J, Wadwa RP, Messer LH, Kovatchev BP, Maahs DM. Closed-Loop Control During Intense Prolonged Outdoor Exercise in Adolescents With Type 1 Diabetes: The Artificial Pancreas Ski Study. Diabetes Care. 2017 Dec;40(12):1644-1650. doi: 10.2337/dc17-0883. Epub 2017 Aug 30.

MeSH Terms

Conditions

Diabetes Mellitus, Type 1Lymphoproliferative Disorders

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesAutoimmune DiseasesImmune System DiseasesLymphatic DiseasesHemic and Lymphatic DiseasesImmunoproliferative Disorders

Study Officials

  • Daniel R. Chernavvsky, MD, CRC

    University of Virginia

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

November 6, 2015

First Posted

November 13, 2015

Study Start

January 1, 2016

Primary Completion

April 1, 2016

Study Completion

April 1, 2016

Last Updated

September 19, 2018

Record last verified: 2017-11

Data Sharing

IPD Sharing
Will share

undetermined

Locations