Eversense and Dexcom G5: Efficacy and Accuracy in Type 1 Diabetic Patients
Eversense and Dexcom G5 Comparison in Real Life: a Randomized Crossover Trial in Type 1 Diabetic Patients to Evaluate Differences in Accuracy, Efficacy and Quality of Life
Continuous Glucose Monitoring (CGM) systems improve glycaemic control in type 1 diabetic patients but they have different characteristics that could influence patients' quality of life and glycaemic control.
In this randomized cross over study investigators will compare 2 different CGM systems: Eversense implantable sensor (Senseonics, Germantown, MD, USA) and the standard transcutaneous sensor Dexcom G5 (Dexcom, San Diego, CA, USA). Investigators will evaluate sensors' accuracy, impact on quality of life and efficacy in optimizing glycaemic control.
The investigator's study's results might help clinicians choose the sensor and evaluate how sensor differences could impact glycaemic control.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
Good glycaemic control in type 1 diabetic patients prevents the onset and progression of chronic complications. Continuous Glucose Monitoring (CGM) systems help patients improve glycaemic control by providing real-time glucose levels, glycaemic tendency, glycaemic swing rate and by alerting the patient when the glucose value read by the sensor reaches a predefined threshold of hyper or hypoglycaemia.
Several CGM systems are available and they have different characteristics that could influence patients' quality of life and glycaemic control.
In this randomized cross over study investigators will compare 2 different CGM systems: Eversense implantable sensor (Senseonics, Germantown, MD, USA) and the standard transcutaneous sensor Dexcom G5 (Dexcom, San Diego, CA, USA). Investigators will evaluate sensors' accuracy, impact on quality of life and efficacy in optimizing glycaemic control.
Patients will use Dexcom G5 or Eversense for three months, respectively, in a randomized order. Accuracy will be evaluated comparing sensors values with capillary blood glucose at home.
Quality of life will be assessed at the beginning and at the end of each three-month period through validated questionnaires to underline differences in different sensors use.
Time spent in target (70-180 mg/dl), in hypoglycamiea and hyperglycemia will be evaluated with both sensors to assess differences in glycaemic control induced by different alarm system and by the presence of predictive alarms
Undersøgelsestype
Tilmelding (Faktiske)
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
-
-
-
Padova, Italien
- University of Padova
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Male and female participants of at least 18 years of age
- Diagnosis of type 1 diabetes mellitus (diagnosed according to World Health Organization criteria) for at least 1 year
- Body Mass Index (BMI) <35 kg / m²
- Availability to wear study equipment and to comply with the study protocol for its entire duration
- HbA1c <10%
- Signature of informed consent before any procedure related to the study.
Exclusion Criteria:
- Pregnancy, breastfeeding, intention to undergo pregnancy or refusal to use contraceptive methods during the study period (for female subjects).
- Known allergies to skin patches or disinfectants used during the study.
- Skin lesions, irritation, redness, edema in sites where sensors can be applied, as this might interfere with sensor's placement or with the accuracy of the glycaemic value detection.
- Use of drugs that may interfere with glucose metabolism (such as steroids) unless they are chronic therapies whose dosage has remained stable over the past 3 months and is expected to remain stable during the study period.
- Use of acetaminophen or other drugs that could influence sensor accuracy
- Severe medical or psychological conditions, which, in the opinion of the medical team, may compromise patients' safety while participating in the study.
- Patients enrolled in other clinical trials.
- Known disorders of adrenal glands, pancreatic tumors or insulinoma
- Patient's inability to comply with the procedures of the study
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Andet
- Tildeling: Randomiseret
- Interventionel model: Crossover opgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Aktiv komparator: Dexcom G5 - Eversense
Patients will wear first Dexcom G5 (Dexcom San Diego, CA, USA) transcutaneous sensor for 3 months, then Eversnese(Senseonics Inc, MD, USA) implantable sensor for 3 months Accuracy and efficacy will be evaluated
|
Patients will wear sensor for 3 months, monitor blood capillary values 4 times/day.
At the beginning and at the end of the period HbA1c will be measured and questionnaires will be administered
|
|
Eksperimentel: Eversense- Dexcom G5
Patients will wear first Eversense (Senseonics Inc, MD, USA) implantable sensor for 3 months, then Dexcom G5 (Dexcom San Diego, CA, USA) transcutaneous sensor for 3 months accuracy and efficacy will be evaluated
|
Patients will wear sensor for 3 months, monitor blood capillary values 4 times/day. At the beginning and at the end of the period HbA1c will be measured and questionnaires will be administered. After 30-50 days of sensor implantation patients will wear also Dexcom G5 for a week to compare accuracy simultaneously |
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
device accuracy
Tidsramme: after 3 months, at the end of the study for each arm of the study
|
sensors' accuracy expressed in terms of MARD (mean absolute relative difference) versus capillary blood glucose in different glycaemic ranges
|
after 3 months, at the end of the study for each arm of the study
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Time spent in target
Tidsramme: after 3 months, at the end of the study for each arm of the study
|
% Time spent in target (70-180 mg/dl) using each sensor to evaluate sensor efficacy
|
after 3 months, at the end of the study for each arm of the study
|
|
HbA1c
Tidsramme: after 3 months, at the end of the study for each arm of the study
|
HbA1c changes using different sensors, to evaluate sensor efficacy
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after 3 months, at the end of the study for each arm of the study
|
|
failure
Tidsramme: after 3 months, at the end of the study for each arm of the study
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% Sensors' failure rate to evaluate sensor duration
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after 3 months, at the end of the study for each arm of the study
|
|
Adverse events
Tidsramme: after 3 months, at the end of the study for each arm of the study
|
Adverse events (skin reactions, haematomas)
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after 3 months, at the end of the study for each arm of the study
|
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changes in quality of life
Tidsramme: after 3 months, at the end of the study for each arm of the study
|
DTSQ questionnaire
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after 3 months, at the end of the study for each arm of the study
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changes in fear of hypoglycaemia
Tidsramme: after 3 months, at the end of the study for each arm of the study
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HFSII questionnaire
|
after 3 months, at the end of the study for each arm of the study
|
Samarbejdspartnere og efterforskere
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 4270/AO/17
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