Study to Determine the Efficacy of Real-time CGM in Preventing Hypoglycemia Among Insulin-treated Patients With DM2 on Hemodialysis, Compared to Standard of Care (POC BG)

Emory University

Status: Completed

Conditions: End-Stage Renal Disease; Type 2 Diabetes

Treatments: Device: POC Glucose Testing; Device: Dexcom Real-time G6 Continuous Glucose Monitoring System (CGM)

Study type: Interventional

Funder types: Other; NIH

Identifiers

NCT04473430

MH121653 (Other Identifier)

IRB00114840

1K23DK123384-01 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

The study is conducted to assess the efficacy of real-time CGM data in preventing hypoglycemia in patients with type 2 diabetes and end-stage kidney disease (ESKD), treated with insulin therapy and receiving hemodialysis.

Full description

The study is conducted to assess the efficacy of real-time CGM data in preventing hypoglycemia among patients with type 2 diabetes (DM2), treated with insulin and receiving hemodialysis. The study will provide novel insights into the glycemic exposure patterns among dialysis patients and will provide preliminary data for future outcomes-based studies determining the best glycemic targets for this group.

Enrollment: 53 patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• adult subjects with type 2 diabetes
• receiving hemodialysis (for at least 90 days)
• treated with insulin therapy [basal insulin alone (glargine U100, glargine U300, detemir, degludec, NPH)], or in combination with bolus insulin (at least one or more injections of aspart, lispro, glulisine, regular insulin) or in combination with incretin therapy (DPPIV or GLP1)
• willingness to wear the CGM
• currently performing self-monitored blood glucose (at least 2 times daily).

Exclusion criteria

• use of sulfonylureas or thiazolidinediones alone or in combination with insulin
• use of personal/real-time CGM 3 months prior to study entry (blinded CGM is allowed)
• prior use of insulin pumps or hybrid close loop systems (for at least the prior 28 days)
• current or anticipated use of stress steroids doses (prednisone ≤5mg or its equivalent is allowed)
• subjects who are sensitive or allergic to adhesive
• extensive skin changes/diseases that preclude wearing the required number of devices on normal skin (e.g., extensive psoriasis, recent burns or severe sunburn, extensive eczema, extensive scarring, extensive tattoos, dermatitis herpetiformis) at the proposed wear sites
• any condition that, in the opinion of the Investigator, would interfere with their participation in the trial (e.g., marked visual or hearing impairment, active alcohol or drug abuse, mental illness) or pose excessive risk to study staff handling venous blood samples
• situations that will limit the subject's ability to comply with the protocol (per investigator discretion)
• active malignancy
• unable to give informed consent
• at least 10% of time spent in clinical relevant hypoglycemia (<54 mg/dl) during blinded CGM period
• significant hypoglycemia (< 40 mg/dL)
• severe hyperglycemia (BG> 400 mg/dL)
• extensive skin abnormalities at insertion sites
• pregnancy or breastfeeding
• severe anemia (Hemoglobin < 5 mg/dl)
• polycythemia (Hemoglobin >17 mg/dl)
• subjects taking acetaminophen (more than 1 gr every six hours)
• hydroxyurea (may cause interference with the sensor membrane).

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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53 participants in 2 patient groups

Real-time Dexcom CGM during CGM Intervention

Experimental group

Description:

Patients with type 2 DM treated with insulin and receiving hemodialysis will use a real-time/personal CGM for 4 weeks (Intervention-Control Group), then 2 weeks of wash-out period, and cross over to use POC BG for 4 weeks, for insulin adjustments.

Treatment:

Device: Dexcom Real-time G6 Continuous Glucose Monitoring System (CGM)

Professional Dexcom CGM During Point-Of-Care Blood Glucose Intervention

Experimental group

Description:

Patients with type 2 DM treated with insulin and receiving hemodialysis will use POC BG for 4 weeks, then 2 weeks of wash-out period, and cross over to use a real-time/personal CGM for 4 weeks, for insulin adjustments (Control-Intervention Group).

Treatment:

Device: POC Glucose Testing