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Continuous Glucose Monitor

Masked CGM Wear (Phase 1) for Hypoglycemia

N/A
Waitlist Available
Led By Mary Elizabeth Patti, MD
Research Sponsored by Joslin Diabetes Center
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Be older than 18 years old
Timeline
Screening 3 weeks
Treatment Varies
Follow Up 28 days for those participants wearing dexcom g4, and 20 days for participants wearing dexcom g6.
Awards & highlights
No Placebo-Only Group

Summary

This trial tests if a continuous glucose monitor (CGM) can help people who have low blood sugar after gastric surgery. The CGM tracks blood sugar levels all day and night, alerting users to low levels so they can take action. This could reduce the number and severity of low blood sugar episodes. Continuous glucose monitoring (CGM) has become widely available and has been shown to improve blood sugar control in patients with diabetes.

Eligible Conditions
  • Hypoglycemia
  • Reactive Hypoglycemia
  • Low Blood Sugar

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~28 days for those participants wearing dexcom g4, and 20 days for participants wearing dexcom g6.
This trial's timeline: 3 weeks for screening, Varies for treatment, and 28 days for those participants wearing dexcom g4, and 20 days for participants wearing dexcom g6. for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
Percentage of Time Sensor Glucose <54 mg/dL in the Masked Versus the Unmasked Phase
Percentage of Time Sensor Glucose <60mg/dL in the Masked Versus the Unmasked Phase
Percentage of Time Sensor Glucose <70 mg/dL in the Masked Versus the Unmasked Phase.
Secondary study objectives
24 Hour Continuous Overall Net Glycemic Action (CONGA) for Sensor Glucose Data During Periods of CGM Wear, Masked Versus Unmasked Phase
Peak Sensor Glucose Level During Masked Versus Unmasked Period of CGM Wear
Sensor Glucose Level Range (Highest Sensor Glucose Minus Lowest Sensor Glucose mg/dL) During Masked Versus Unmasked Period of CGM Wear
+3 more

Awards & Highlights

No Placebo-Only Group
All patients enrolled in this study will receive some form of active treatment.

Trial Design

2Treatment groups
Experimental Treatment
Group I: Unmasked CGM Wear (Phase 2)Experimental Treatment1 Intervention
In the second phase, participants will be able to read the sensor glucose levels (unmasked). Frequency of hypoglycemia will be compared between the two phases of the study.
Group II: Masked CGM Wear (Phase 1)Experimental Treatment1 Intervention
Each participant will wear the Dexcom CGM for two sequential phases. During the first phase, participants will not be able to read the sensor glucose levels (masked).
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Dexcom CGM masked
2019
N/A
~30
Dexcom CGM unmasked
2019
N/A
~30

Find a Location

Who is running the clinical trial?

Joslin Diabetes CenterLead Sponsor
97 Previous Clinical Trials
26,596 Total Patients Enrolled
13 Trials studying Hypoglycemia
906 Patients Enrolled for Hypoglycemia
DexCom, Inc.Industry Sponsor
144 Previous Clinical Trials
35,459 Total Patients Enrolled
12 Trials studying Hypoglycemia
15,901 Patients Enrolled for Hypoglycemia
Mary Elizabeth Patti, MDPrincipal InvestigatorJoslin Diabetes Center
4 Previous Clinical Trials
258 Total Patients Enrolled
3 Trials studying Hypoglycemia
218 Patients Enrolled for Hypoglycemia
~4 spots leftby Nov 2025