Sleep Apnea, Obstructive, Type 1 Diabetes (T1D)
Conditions
Brief summary
The purpose of the study is to investigate the role of sleep apnea in glycemic dysregulation in adults with Type 1 diabetes.
Detailed description
Obstructive sleep apnea (OSA) is a common sleep disorder characterized by recurrent collapse of upper airway during sleep, resulting in intermittent hypoxia, sleep fragmentation by transient arousals, and poor sleep quality. Continuous positive airway pressure (CPAP), applied at night, is considered the treatment of choice for persons who are diagnosed with OSA. Current evidence suggests that OSA is highly prevalent in adults with T1D and particularly those with moderate-to-severe OSA have poorer glycemic control. Our overall goal is to investigate the role OSA in glycemic dysregulation in adults with T1D.
Interventions
DEVICEContinuous positive airway pressure (CPAP)
All-night CPAP will be applied with bedtimes 23:00h to 7:00h.
Sponsors
University of Chicago
National Heart, Lung, and Blood Institute (NHLBI)
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
NONE
Intervention model description
Within subjects design
Eligibility
Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
No
Inclusion criteria
* Age: 18 to 50 years old * Type 1 Diabetes on insulin pump therapy and using a CGM device with an GMI (glucose management indicator) between 5.5 and 8.5% with hemoglobin in the normal range at screening * OSA by home sleep apnea test
Exclusion criteria
* Regular and adherent CPAP use per clinical guidelines * Requiring oxygen or advanced positive airway pressure modalities during sleep * Having a 'fall-asleep' or 'near miss' accident in the past 6-months * Shift work * Severe hypoglycemia (≥1 episode in the past 3 months or diagnosis of hypoglycemic unawareness) * ≥1 trip to emergency room for poor glucose management in the past 6 months * Proliferative retinopathy * Fasting triglycerides \>400mg/dL, * Liver transaminases \>2 times upper limit of normal, * Renal transplantation or serum creatinine \>1.5 mg/dL * Anemia (hemoglobin \<13.0g/dL in men or \<11.6g/dL in women) * Acute coronary syndrome or stroke past 6 months * Severe hypertension (blood pressure\>180/105 mmHg) * Any other significant health condition: unstable angina, heart failure requiring hospitalization in the past 6 months, significant heart block or arrhythmias, NYHA Class\>2, pulmonary disease with dependence on oxygen or daily use of bronchodilators, active or chronic infection, thyroid disease and other endocrine disorders (e.g. Cushing syndrome, acromegaly) * Recent major surgery * Major psychiatric disorder * Subjects will also be excluded if taking medications that can confound metabolic assessments including systemic glucocorticoids, antipsychotics, thiazide diuretics, beta-blockers, daily use of aminophylline or theophylline, or use of any immunosuppressant. * Currently pregnant or trying to get pregnant or nursing * Smoking, alcohol or illegal drug abuse
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Glycemic variability | Within 3 months of screening | Glycemic variability will be calculated using a standard metric as percent coefficient of variation (% CV) of glucose values obtained from continuous glucose monitoring (CGM). |
Countries
United States
Contacts
CONTACTEsra Tasali, MD
CONTACTBecky Tucker
PRINCIPAL_INVESTIGATOREsra Tasali, MD
University of Chicago
Outcome results
None listed