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Continuous Glucose Monitoring Systems in People With Type 2 Diabetes Not Treated With Insulin

30 de outubro de 2026 atualizado por: Anna Krentowska, Medical University of Bialystok

Continuous Glucose Monitoring Systems in People With Type 2 Diabetes Not Treated With Insulin - the Association With Metabolic Control of Diabetes and Markers of Early Vascular Changes

The aim of the study is to assess the influence of continuous glucose monitoring (CGM) systems on metabolic control and quality of life in people with type 2 diabetes and overweight/obesity who are not treated with insulin. Additionally, the study aims to assess the association between metabolic control of diabetes and markers of early cardiovascular disease, taking into account the impact of CGM use.

Visão geral do estudo

Status

Recrutamento

Condições

Intervenção / Tratamento

Descrição detalhada

Pharmacological treatment of type 2 diabetes (T2DM) has advanced significantly in recent years. However, despite increasing availability of new medications, a great proportion of patients do not achieve treatment goals, which leads to an increased risk of chronic complications. Continuous glucose monitoring (CGM) systems have become standard of care in persons with diabetes treated with insulin, although they might also be a useful tool in guiding behaviour and dietary choices in patients treated with non-insulin medications. However, the data on their potential benefits in people with T2DM not using insulin are scarce. Therefore, the study aims to investigate the influence of CGM use on metabolic control and quality of life in this group of patients.

The study subjects will be randomly assigned to one of two groups: using continuous glucose monitoring systems or performing self-monitoring of blood glucose with a glucose meter. The intervention time will be 12 weeks, with control visits every 4 weeks. A post-intervention follow-up visit to assess whether the achieved results are maintained will be performed at 3 months after completing the intervention.

Tipo de estudo

Intervencional

Inscrição (Estimado)

50

Estágio

  • Não aplicável

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

Locais de estudo

      • Bialystok, Polônia, 15-276
        • Recrutamento
        • Medical University of Bialystok, Department of Internal Medicine and Metabolic Diseases
        • Contato:
        • Investigador principal:
          • Anna Krentowska, MD, PhD

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

18 anos a 65 anos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Não

Gêneros Elegíveis para o Estudo

Tudo

Descrição

Inclusion Criteria:

  • Age between 18 and 65 years (both inclusive)
  • Type 2 diabetes diagnosed at least 6 months prior to entering the study
  • Body mass index ≥25 kg/m2
  • Diabetes treated with oral medications and/or GLP-1 receptor agonists and/or tirzepatide
  • No modifications of diabetes treatment in the previous 3 months
  • HbA1c between 7.5% and 10% (both inclusive)
  • Oral and written informed consent for participation

Exclusion Criteria:

  • Type 1 diabetes, gestational diabetes, other specific types of diabetes
  • HbA1c >10.0%
  • Treatment with insulin
  • Previous use of any continuous glucose monitoring system
  • GFR <30 ml/min
  • Acute infections, acute diabetes complications and/or unplanned hospitalisations in the previous month
  • Use of steroids or immunosuppressive medications in the previous 3 months
  • Chemotherapy, radiotherapy, immune therapy in the previous 3 months
  • Pregnancy and/or breastfeeding
  • Skin lesions or dermatological conditions preventing proper sensor insertion
  • Cognitive impairment and/or other conditions preventing proper use of continuous glucose monitoring system
  • Lack of consent for the use of continuous glucose monitoring system

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Tratamento
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição Paralela
  • Mascaramento: Nenhum (rótulo aberto)

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Continuous glucose monitoring

Dexcom One+ continuous glucose monitoring system

Participants will be randomized to use Dexcom One+ continuous glucose monitoring system for 12 weeks, with control visits every four weeks.

Outro: Self-monitoring of blood glucose

Participants will be randomized to continue self-monitoring of blood glucose with a glucose meter as per usual practice, with control visits every four weeks.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Change in time in range
Prazo: Week 12

Observed change in time in range (70-180 mg/dl) from baseline to week 12 in the group using CGM system compared to the group using SMBG.

Week 12

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Change in HbA1c
Prazo: Week 12

Observed change in the percentage of glycated haemoglobin (HbA1c) from baseline to week 12.

Week 12
Change in TITR
Prazo: Week 12

Observed change in time in tight range (TITR; 70-140 mg/dl) from baseline to week 12.

Week 12
Change in TAR
Prazo: Week 12

Observed change in time above range (TAR; >180 mg/dl) from baseline to week 12.

Week 12
Change in TBR
Prazo: Week 12

Observed change in time below range (TBR; <70 mg/dl) from baseline to week 12.

Week 12
Change in CV
Prazo: Week 12

Observed change in glycaemic variability assessed with coefficient of variation (CV) from baseline to week 12.

Week 12
Change in body weight (kg)
Prazo: Week 12

Observed change in body weight from baseline to week 12.

Week 12
Change in markers of early vascular disease
Prazo: Week 12

Observed change in the concentrations of circulating markers of subclinical vascular disease: oxLDL, VCAM-1, ICAM-1, E-selectin, interleukin 6, interleukin 18 from baseline to week 12.

Week 12
Change in diabetes distress: DDS
Prazo: Week 12

Observed change in diabetes distress measured with DDS questionnaire from baseline to week 12.

DDS is a 17-item questionnaire assessing diabetes distress over the previous month. Scores <2 points indicates no/little distress, 2-2.9 points - moderate distress, and ≥3 points - high distress.

Week 12
Change in PHQ-9
Prazo: Week 12

Observed change in Patient Health Questionnaire-9 (PHQ-9) score from baseline to week 12.

PHQ-9 is a 9-item questionnaire for screening, diagnosing, monitoring and measuring the severity of depression. Total score: 0-27 points; higher scores reflect greater severity of depressive symptoms.

Week 12
Change in quality of life: WHOQOL-BREF questionnaire
Prazo: Week 12

Observed change in abbreviated World Health Organization Quality of Life (WHOQOL-BREF) questionnaire from baseline to week 12.

Total score: 0-100 points; higher scores reflect higher quality of life.

Week 12
Change in sleep quality: PSQI
Prazo: Week 12

Observed change in sleep quality measured with Pittsburgh Sleep Quality Index (PSQI) from baseline to week 12.

Total score: 0-21 points; a score greater than 5 indicates significant sleep difficulties.

Week 12
Change in TIR after completing the intervention
Prazo: Week 24

Observed change in time in range (TIR; 70-180 mg/dl) from week 12 (end of intervention) to week 24 (post-intervention follow-up).

Week 24
Change in HbA1c after completing the intervention
Prazo: Week 24

Observed change in the percentage of glycated haemoglobin (HbA1c) from week 12 (end of intervention) to week 24 (post-intervention follow-up).

Week 24
Change in TITR after completing the intervention
Prazo: Week 24

Observed change in time in tight range (TITR; 70-140 mg/dl) from week 12 (end of intervention) to week 24 (post-intervention follow-up).

Week 24
Change in TAR after completing the intervention
Prazo: Week 24

Observed change in time above range (TAR; >180 mg/dl) from week 12 (end of intervention) to week 24 (post-intervention follow-up).

Week 24
Change in TBR after completing the intervention
Prazo: Week 24

Observed change in time below range (TBR; <70 mg/dl) from week 12 (end of intervention) to week 24 (post-intervention follow-up).

Week 24
Change in CV after completing the intervention
Prazo: Week 24

Observed change in glycaemic variability assessed with coefficient of variation (CV) from week 12 (end of intervention) to week 24 (post-intervention follow-up).

Week 24
Change in markers of early vascular disease after completing the intervention
Prazo: Week 24

Observed change in the concentrations of circulating markers of subclinical vascular disease: oxLDL, VCAM-1, ICAM-1, E-selectin, interleukin 6, interleukin 18 from week 12 (end of intervention) to week 24 (post-intervention follow-up).

Week 24

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Colaboradores

Investigadores

  • Investigador principal: Anna Krentowska, MD, PhD, Medical University of Bialystok

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Estimado)

1 de novembro de 2026

Conclusão Primária (Estimado)

1 de fevereiro de 2028

Conclusão do estudo (Estimado)

1 de maio de 2028

Datas de inscrição no estudo

Enviado pela primeira vez

30 de outubro de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

30 de outubro de 2026

Primeira postagem (Real)

5 de novembro de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

5 de novembro de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

30 de outubro de 2026

Última verificação

1 de outubro de 2026

Mais Informações

Termos relacionados a este estudo

Outros números de identificação do estudo

  • APK.002.300.2025

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .