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Effect of CGM With Predictive Alarm on Hypoglycemia in Young Patients With T1D. (CGMHYPO)

7. oktober 2022 opdateret af: Azienda Ospedaliera Universitaria Integrata Verona

Impact of Continuous Glucose Monitoring (CGM) With Predictive Alarm for Hypoglycemia (Guardian Connect System) on Glycemic Control and Hypoglycemia Management in a Group of Adolescents With Type 1 Diabetes Mellitus Treated With Multiple Daily Insulin Injections (MDI).

The use of continuous glucose monitoring (CGM) is becoming the new standard in glycometabolic control in patients with Type 1 Diabetes Mellitus (T1DM) even in subjects in multiple daily insulin injections (MDI). Compared to self-monitoring of blood glucose (SMBG), the CGM systems allow continuous monitoring of the glycemic trends contributing to modify the therapeutic habits of adult and pediatric patients with T1DM and allowing to better managing of critical situations such as hypoglycemia. Recently, the accuracy and reliability performance of the latest generation of CGMs using predictive alarm for hypoglycaemia and hyperglycemia has been compared to other commercially available CGM systems, showing good levels of concordance.

The use of this new technology, through the continuous monitoring of the pre-and post-prandial glucose levels and the evaluation of the glycemic trends, could influence the therapeutic habits of patients and could substantially contribute to modifying insulin therapy. Furthermore, the presence of the predictive alarm technology for hypoglycemia could lead to reduce the number of hypoglycemic episodes and to modify the way these hypoglycemic episodes are managed; moreover, the use of this technology could improve the time spent in the target glycemic range [Time in Range (TIR), 70-180 mg/dl] with possible improvement also in glycemic variability control.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

20

Fase

  • Ikke anvendelig

Kontakter og lokationer

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Studiesteder

  • Italien
      • Verona, Italien, 37126
        • Pediatric Diabetes and Metabolic Disorders Unit, Surgery, Dentistry, Paediatrics and Gynaecology, University of Verona, 1 Piazzale Stefani

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

12 år til 17 år (Barn)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • T1DM for at least 12 months [assessed by positivity of at least one of the antibodies against islet cells (ICA), insulin (IAA), glutamate dehydroxylase (GADA), islet antigen 2 (IA2A), or Zinc Transporter 8 Antibodies (ZnT8)];
  • MDI therapy from at least 6 months with basal-bolus treatment (long acting insulin analog plus rapid acting insulin analogue);
  • HbA1c < 9.0%
  • normal weight (BMI <85th percentile for age and gender);
  • no other chronic diseases (thyroiditis, celiac disease, etc) or eating behavior disorders (DCA);
  • signed informed consent from parents or legal guardians and patients (<18 y).

Exclusion Criteria:

  • T1DM for less than 12 months;
  • CSII therapy
  • Previous usage of CGM with predictive alarm for hypoglycemia or hyperglycemia
  • MDI therapy from less than 6 months
  • use of regular insulin instead of rapid acting insulin analogue;
  • other chronic diseases (thyroiditis, celiac disease, etc.) or eating behavior disorders (DCA).

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Crossover opgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Predictive Alarm (PA)
Patients use the CGM sensor with Predictive Alarm on set at 70 mg/dl in 20 minutes for hypoglycemia and at 250 mg/dl in 20 minutes for hyperglycemia.
Enhed: Use of Predictive Alarm for hypoglycaemia or hyperglycaemia

Patients use CGM sensor with Predictive Alarm set at 70 mg/dl in 20 minutes for hypoglycemia and at 250 mg/dl in 20 minutes for hyperglycemia.

  1. in case of alarm from the hypoglycemia predictive algorithm, the indicated treatment was 0.1g of sugar/kg of body weight;
  2. in case of alarm from the hyperglycemia predictive algorithm, the indication was to give an extra shot of rapid-acting insulin. The dose will be calculated on the basis of personal insulin sensitivity factor (ISF), considering as target a blood glucose of 120 mg/dl and 250 mg/dl as the projected blood glucose level that will be reached in 20 minutes. This could be done only if there is no active insulin on-board, after at least 3 hours from the last rapid-acting insulin injection.
Aktiv komparator: Alarm on Threshold (AoT)
Patients use the CGM sensor with alarms on a threshold of 70 mg/dl for hypoglycemia and 250 mg/dl for hyperglycemia.
Enhed: Use of Alarm on Threshold for hypoglycaemia or hyperglycaemia

in case of alarm of hypoglycemia, the indicated treatment was 0.3g of sugar/kg of body weight, max 15g.

in case of alarm of hyperglycemia, the indication will be to give an extra shot of rapid-acting insulin. The dose will be calculated on the basis of personal insulin sensitivity factor (ISF), considering as target a blood glucose of 120 mg/dl and 250 mg/dl as blood glucose level to correct. This could be done only if there is no active insulin on-board, after at least 3 hours from the last rapid-acting insulin injection.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Less time spent in hypoglycaemia using Predictive Alarm vs Alarm on Threshold
Tidsramme: 2 weeks CGM data with PA vs 2 weeks CGM data with AoT
the difference in the percentage of time spent below 70 mg/dl (TBR < 70 mg/dl) between the Alarm on Threshold (AoT) and the Predictive Alarm (PA) arms after 2 weeks of treatment
2 weeks CGM data with PA vs 2 weeks CGM data with AoT

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Better glycemic metrics using Predictive Alarm vs Alarm on Threshold
Tidsramme: 2 weeks CGM data with PA vs 2 weeks CGM data with AoT

the difference in the percentage of time spent in 70-180 mg/dl range (TIR) between the Alarm on Threshold (AoT) and Predictive Alarm (PA) arms after 2 weeks of treatment (V2 vs V1 and V4 vs V3); the difference in the percentage of time spent above 250 mg/dl (TAR > 250 mg/dl) between the Alarm on Threshold and Predictive Alarm arms after 2 weeks of treatment (V2 vs V1 and V4 vs V3).

the difference in main glucose metrics (%TIR, %TBR, %TAR) and glucose variability measures (SD, %CV, MAG, MAGE, HBGI, LBGI, ADRR, CONGA, MODD) between Group A (PA/AoT) and Group B (AoT/PA) at the end of the treatment period (V4) vs baseline (V1)
2 weeks CGM data with PA vs 2 weeks CGM data with AoT

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Azienda Ospedaliera Universitaria Integrata Verona

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

10. maj 2021

Primær færdiggørelse (Faktiske)

28. marts 2022

Studieafslutning (Faktiske)

10. juni 2022

Datoer for studieregistrering

Først indsendt

7. oktober 2022

Først indsendt, der opfyldte QC-kriterier

7. oktober 2022

Først opslået (Faktiske)

10. oktober 2022

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

10. oktober 2022

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

7. oktober 2022

Sidst verificeret

1. juli 2022

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 3142CESC

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