hUC-MSC-Exosomes for T2DM - Safety & Efficacy

Trial statusRecruiting
Trial phasePhase 1, Phase 2
Trial typeInterventional
Biological sexAll
Age18-65
SponsorPeking University First Hospital

About this trial

The goal of this clinical trial is to Evaluate the Safety and Preliminary Efficacy of Human Umbilical Cord Mesenchymal Stem Cell-Derived Exosomes in the Treatment of Adult Type 2 Diabetes Mellitus.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age 18-65 years, diagnosed with T2DM for ≥5 years (<20 years).

Regular diet and exercise control combined with the following intensive treatment regimens, with screening HbA1c remaining between 7.5% and 9.0% (FBG <13.9mmol/L):Stable dose of insulin (basal or premixed) (<1.5u/kg·d) combined with ≥1 oral antidiabetic drug (OAD) (e.g., Metformin, SGLT2i) for ≥3 months; or Insulin combined with a GLP-1RA (maximum tolerated dose, ≤1mg Qw); or GLP-1RA (maximum tolerated dose, ≤1mg Qw) combined with ≥1 OAD for ≥3 months; or Stable dose of ≥3 OADs (must include Metformin) for ≥3 months.

Fasting C-peptide ≥1.0 ng/mL.

Glutamic acid decarboxylase (GAD) antibody and Islet cell antibody (IAA) negative.

Disqualifiers

Type 1 diabetes or other specific types of diabetes.

Occurrence of severe hypoglycemia or diabetic ketoacidosis within the past 6 months.

Severe cardiovascular/cerebrovascular diseases, hepatic or renal insufficiency (e.g., eGFR <30 mL/min·1.73m²).

Active malignancy, coagulation disorders, immune system diseases.

Trial design

Design model

Parallel

Treatments tested in this trial

  • exosomes treatment group

    Biological/Vaccine

    GoldenExo(NATX) treatment group (n=32) The specific therapeutic dose for the second stage will be evaluated and determined jointly by the investigators and the Safety Monitoring Committee (SMC) after all three dose escalation trials (1×10¹¹, 3×10¹¹, 9×10¹¹ particles) in the first stage.Subjects in both groups will receive intravenous infusions once weekly for 8 weeks (a total of 8 doses).

  • control group

    Other intervention

    active-comparator control:(n=16)The control group will receive an equal volume of the same buffer solution without exosomes (.Subjects in this groups will receive intravenous infusions once weekly for 8 weeks (a total of 8 doses)

Treatment groups

66 Participants
are divided into 2 treatment groups
Group A: control groupPlacebo comparator 1 intervention
Group B: exosomes treatment groupExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Change in Glycated Hemoglobin (HbA1c)

The primary efficacy endpoint is the change in glycated hemoglobin (HbA1c) from baseline to Week 8. In the randomized comparative stage, between-group differences between the investigational intervention group and the control group will also be evaluated. Unit of Measure: Percentage (%) Interpretation: Reflects long-term glycemic control and overall metabolic efficacy of the intervention.

Time frame
Baseline, Week 8

Secondary outcomes

1

Glycated Hemoglobin (HbA1c) Response Rate

Proportion of participants achieving HbA1c target control. Definition: HbA1c \< 7.0% Unit of Measure: Percentage of participants (%) Interpretation: Reflects long-term glycemic target attainment rate.

Time frame
Week 24, Week 52
2

Pancreatic Islet Function: Insulin (INS)

Comparison of serum/plasma insulin levels between baseline and various post-treatment follow-up time points via synchronous venous blood sampling at fasting. Unit of Measure:Picomoles per liter (pmol/L). Interpretation:Used to evaluate circulating insulin levels. HOMA-IR assesses the sensitivity of peripheral target tissues (skeletal muscle, liver, adipose tissue) to insulin, where higher values indicate more severe resistance. HOMA-beta statically evaluates baseline pancreatic beta-cell secretory function under fasting conditions (applicable to subjects not receiving exogenous insulin therapy).

Time frame
Baseline, Week 4, Week 8,Week 12, Week 24, Week 52
3

Pancreatic Islet Function: C-peptide

Comparison of serum/plasma C-peptide levels between baseline and various post-treatment follow-up time points, measured synchronously from venous blood at fasting. Unit of Measure:Nanograms per milliliter (ng/mL) Interpretation:Used to evaluate endogenous insulin secretion. Because C-peptide bypasses hepatic first-pass metabolism, it precisely mirrors true residual endogenous pancreatic beta-cell mass and functional capacity. An increase from baseline (positive change) indicates functional recovery or preservation of pancreatic beta-cells.

Time frame
Baseline, Week 4, Week 8, Week 12, Week 24, Week 52
4

Changes in Blood Glucose during MMTT

Fasting (0 min) and 2-hour postprandial (120 min) blood glucose levels are measured during mixed-meal tolerance test (MMTT). Changes from baseline at various post-treatment follow-up time points are compared. Unit of Measure: mmol/L Interpretation: Lower postprandial glucose levels and/or reduced glucose excursion during MMTT indicate improved glycemic control and β-cell function.

Time frame
Baseline, Week 8, Week 52

Other outcomes

Sponsors and contacts

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