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Mathematical Modeling of Blood Sugar and Hormone Responses in Insulin-Dependent Type 2 Diabetes (MT2D)

Mathematical Modeling of Type 2 Diabetes Mellitus

This observational study aims to collect detailed metabolic and physiologic data from adults with insulin-dependent type 2 diabetes mellitus following consumption of a mixed meal tolerance test. Participants will undergo frequent blood sampling over a 4-hour period after consuming a standardized liquid mixed meal to measure glucose, insulin, glucagon, C-peptide, and triglyceride responses. Participants will also use continuous glucose monitoring and wearable physical activity tracking devices during free-living conditions.

The purpose of this study is to develop mathematical models and digital representations ("digital twins") of people with type 2 diabetes mellitus. These models may help researchers better understand metabolic responses to meals, physical activity, and diabetes treatments, and may support future development of personalized diabetes technologies and therapies.

Visão geral do estudo

Status

Recrutamento

Condições

Descrição detalhada

Participants will first complete a screening visit at the Clinical Nutrition Research Center (CNRC) at the Illinois Institute of Technology. Screening procedures include assessment of medical history, dietary habits, physical activity history, body measurements, vital signs, glycated hemoglobin (HbA1c), and evaluation of eligibility criteria. Eligible participants will receive a continuous glucose monitor (CGM) and wearable activity tracker and will complete dietary recall assessments during the outpatient monitoring period.

Participants will undergo approximately 8 days of outpatient monitoring using continuous glucose monitoring and wearable physical activity tracking devices during free-living conditions. During this period, participants will continue their usual diabetes management and daily activities while recording dietary intake and medication use.

Participants will then complete an in-clinic Liquid Meal Test (LMT) visit following an overnight fast. During the study-day visit, an indwelling intravenous catheter will be placed for repeated venous blood collection. Blood samples will be collected before and over a 4-hour period after consumption of a standardized liquid meal consisting of vanilla-flavored Ensure®. Plasma measurements will include glucose, insulin, glucagon, C-peptide, and triglycerides. Participants will remain seated and monitored throughout the study visit, and safety assessments will be performed before discharge.

The information collected from continuous glucose monitoring, wearable activity tracking, dietary assessments, and repeated blood sampling will be used to develop mathematical models capable of simulating physiologic and metabolic responses in individuals with insulin-dependent type 2 diabetes mellitus. These models may contribute to future research focused on personalized diabetes management, optimization of therapeutic strategies, and evaluation of diabetes technologies.

Tipo de estudo

Observacional

Inscrição (Estimado)

25

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

  • Nome: Chelsea Preiss, Clinical Research Manager, MS
  • Número de telefone: 312-567-5300
  • E-mail: cpreiss@illinoistech.edu

Locais de estudo

    • Illinois
      • Chicago, Illinois, Estados Unidos, 60616
        • Recrutamento
        • Illinois Institute of Technology
        • Contato:
        • Investigador principal:
          • Indika Edirisinghe, 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

  • Adulto
  • Adulto mais velho

Aceita Voluntários Saudáveis

Não

Método de amostragem

Amostra Não Probabilística

População do estudo

Adults 18 to 65 years of age with insulin-dependent type 2 diabetes mellitus will be recruited from the Illinois Institute of Technology Clinical Nutrition Research Center proprietary database, online advertisements, social media, community outreach, and local flyers. Eligible participants must be willing to undergo continuous glucose monitoring, wearable activity tracking, dietary assessment, overnight fasting, repeated blood collection, and a liquid meal tolerance test.

Descrição

Inclusion Criteria:

  • Men or women, 18-65 years of age
  • Diagnosed with insulin-dependent type 2 diabetes mellitus HbA1c ≥ 6.5% at screening
  • Current insulin therapy for ≥ 6 months prior to screening
  • Nonsmokers (past smokers can be allowed if they have abstained for a minimum of 12 months)
  • Judged to be in good health based on medical history (i.e., no clinical evidence of cardiovascular, metabolic, respiratory, renal, gastrointestinal, or hepatic disease)
  • Able to provide informed consent
  • Able to comply with and perform the procedures requested by the protocol (including dietary restrictions, consumption of study foods, records of food diary, sample collection procedures, and study visit schedule)

Exclusion Criteria:

  • Men and women with known or suspected intolerance, allergies, or hypersensitivity to study foods
  • Men and women with low hemoglobin (Hgb) levels below 9.5 g/dL at the screening visit, indicating anemia
  • Men and women with blood pressure >160 mmHg (systolic) / 100 mmHg (diastolic) at the screening visit
  • Women who are pregnant or planning to become pregnant during the study
  • Major trauma or a surgical event within 2 months (or longer depending on trauma or event) and after consultation with PI.
  • Vegan or other extreme dietary regimens (e.g., Atkins diet, etc.) as judged by the investigator
  • History of an eating disorder (e.g., anorexia nervosa, bulimia nervosa, or binge eating) diagnosed by a health professional
  • Donated blood within the last 3 months
  • Unstable weight: gained or lost weight +/- 5 kg (11 lbs) in previous 2 months
  • Unusual working hours i.e., working overnight (e.g. 3rd shift)

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

Coortes e Intervenções

Grupo / Coorte
Adults With Insulin-Dependent Type 2 Diabetes Mellitus
Adults 18 to 65 years of age with insulin-dependent type 2 diabetes mellitus who will undergo a liquid meal tolerance test with frequent blood sampling over 4 hours following consumption of a standardized liquid meal. Participants will also undergo outpatient continuous glucose monitoring and wearable physical activity tracking during free-living conditions to support mathematical modeling of metabolic and physiologic responses.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Change in Plasma Glucose Concentration (mg/dL)
Prazo: -10 to 240 minutes relative to meal consumption
Plasma glucose concentrations will be measured from venous blood samples collected at baseline and multiple postprandial time points using a clinical chemistry analyzer (Randox). Unit of Measure: mg/dL
-10 to 240 minutes relative to meal consumption
Change in Plasma Insulin Concentration (µIU/mL)
Prazo: -10 to 240 minutes relative to meal consumption
Plasma insulin concentrations will be measured from venous blood samples collected at baseline and multiple postprandial time points using a clinical chemistry analyzer (Randox). Unit of Measure: (µIU/mL)
-10 to 240 minutes relative to meal consumption
Change in Plasma Glucagon Concentration (pg/mL)
Prazo: -10 to 240 minutes relative to meal consumption
Plasma glucagon concentrations will be measured from venous blood samples collected at baseline and multiple postprandial time points using a multiplex immunoassay platform (Luminex). Unit of Measure: pg/mL
-10 to 240 minutes relative to meal consumption
Change in Plasma C-Peptide Concentration (ng/mL)
Prazo: -10 to 240 minutes relative to meal consumption

Plasma C-peptide concentrations will be measured from venous blood samples collected at baseline and multiple postprandial time points using a multiplex immunoassay platform (Luminex).

Unit of Measure: ng/mL

-10 to 240 minutes relative to meal consumption
Change in Plasma Triglyceride Concentration (mg/dL)
Prazo: -10 to 240 minutes relative to meal consumption

Plasma triglyceride concentrations will be measured from venous blood samples collected at baseline and multiple postprandial time points using a clinical chemistry analyzer (Randox).

Unit of Measure: mg/dL

-10 to 240 minutes relative to meal consumption
Continuous Glucose Monitoring Metrics During Free-Living Conditions
Prazo: Approximately 8 days during outpatient monitoring

Interstitial Glucose Concentration during Free-Living Conditions via Continuous Glucose Monitor Description: Interstitial glucose concentration measured continuously during outpatient free-living conditions using the Dexcom G7 continuous glucose monitoring device.

Unit of Measure: mg/dL

Approximately 8 days during outpatient monitoring
Average Daily Step Count (steps/day)
Prazo: Approximately 8 days during outpatient monitoring.
Average daily step count, reported in steps per day, measured during outpatient free-living conditions using the Fitbit Sense 2 wearable activity tracker.
Approximately 8 days during outpatient monitoring.
Average Daily Active Minutes (minutes/day)
Prazo: Approximately 8 days during outpatient monitoring.
Average daily active minutes, reported in minutes per day, measured during outpatient free-living conditions using the Fitbit Sense 2 wearable activity tracker.
Approximately 8 days during outpatient monitoring.
Average Daily Sleep Duration (hours/night)
Prazo: Approximately 8 days during outpatient monitoring.
Average sleep duration, reported in hours per night, measured during outpatient free-living conditions using the Fitbit Sense 2 wearable activity tracker.
Approximately 8 days during outpatient monitoring.
Average Resting Heart Rate (beats/minute)
Prazo: Approximately 8 days during outpatient monitoring.
Average resting heart rate, reported in beats per minute (bpm), measured during outpatient free-living conditions using the Fitbit Sense 2 wearable activity tracker.
Approximately 8 days during outpatient monitoring.

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Dietary Intake Assessment Using ASA24 Dietary Recall
Prazo: Approximately 8 days during outpatient monitoring
To assess dietary intake and nutritional patterns using self-reported ASA24 dietary recall assessments during the outpatient monitoring period.
Approximately 8 days during outpatient monitoring

Colaboradores e Investigadores

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

Patrocinador

Investigadores

  • Investigador principal: Indika Edirisinghe, Ph.D, Illinois Institute of Technology

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 (Real)

20 de maio de 2026

Conclusão Primária (Estimado)

20 de outubro de 2026

Conclusão do estudo (Estimado)

20 de março de 2027

Datas de inscrição no estudo

Enviado pela primeira vez

29 de maio de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

12 de junho de 2026

Primeira postagem (Real)

16 de junho de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

16 de junho de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

12 de junho de 2026

Última verificação

1 de junho de 2026

Mais Informações

Termos relacionados a este estudo

Outros números de identificação do estudo

  • IRB-2026-33

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

INDECISO

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

produto fabricado e exportado 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 .