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Type 2 Diabetes MellitusNCT07775664

Huangqi Gegen Decoction for Endothelial Function in Type 2 Diabetes at Very High ASCVD Risk

A study testing Huangqi Gegen Decoction Granules and Conventional Treatment in people with Type 2 Diabetes Mellitus and Endothelial Dysfunction, run by Putuo Hospital, Shanghai University of Traditional Chinese Medicine at 1 site in China.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

This clinical trial evaluates whether Huangqi Gegen Decoction can improve blood vessel function in adults with type 2 diabetes mellitus who are at very high risk of atherosclerotic cardiovascular disease and meet the traditional Chinese medicine criteria for Qi-Yin deficiency syndrome. Read more about this study

Who is it for?
Ages 18 to 75 years
What is being tested?
Huangqi Gegen Decoction Granules and Conventional Treatment
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
90 participants
Where
1 siteChina
Study dates
4 Aug 2026to 30 Oct 2026
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Aged 18 to 75 years.
  • Diagnosed with type 2 diabetes mellitus, with fasting plasma glucose <9.0 mmol/L and glycated hemoglobin (HbA1c) <8.5%, and receiving a stable glucose-lowering treatment regimen without adjustment during the previous 3 months.
  • Type 2 diabetes mellitus with target-organ damage or at least 3 additional cardiovascular risk factors.
  • Meets the diagnostic criteria for Qi-Yin deficiency syndrome in traditional Chinese medicine, including: (a) primary symptoms of dry mouth and thirst, palpitations, and shortness of breath; (b) secondary symptoms including spontaneous sweating, fatigue, chest tightness, chest discomfort or pain, heat sensation in the palms and soles, polyuria, or constipation; and (c) dark-red tongue and weak, thready pulse. The diagnosis requires at least 2 primary symptoms together with supporting secondary symptoms and tongue/pulse findings, and must be confirmed by at least 2 traditional Chinese medicine physicians at attending-physician level or above.
  • Voluntarily participates in the study and provides written informed consent.
  • Has received stable conventional treatment for at least 3 months before enrollment, with the treatment regimen consistent with relevant Chinese clinical guidelines for diabetes and chronic coronary syndromes.

Who cannot join

  • Allergy to the traditional Chinese medicines used in the study or a history of multiple drug allergies.
  • History of severe arrhythmia, including recurrent or symptomatic ventricular tachycardia or atrial fibrillation with rapid ventricular response, or New York Heart Association (NYHA) functional class III-IV heart failure.
  • Abnormal thyroid function, including hyperthyroidism or hypothyroidism, defined as thyroid-stimulating hormone below the lower limit of normal or greater than 1.5 times the upper limit of normal.
  • History of malignant tumor within the previous 5 years.
  • Major surgery within the previous 3 months or planned major surgery during the study period.
  • Long-term or repeated use of systemic glucocorticoids within the previous 3 months.
Show all 12Show fewer
  • Active infectious disease at screening or randomization, psychiatric illness, pregnancy or breastfeeding, or any other condition considered by the investigator to make participation inappropriate.
  • Current use of other medications that may significantly affect systemic immune function.
  • Acute infection or an active inflammatory condition, such as a respiratory tract infection or recent surgery.
  • Hematologic disorders that may affect immune or inflammatory markers, including chronic myeloid leukemia, idiopathic thrombocytopenic purpura, or aplastic anemia.
  • Current use of long-acting nitrates or other medications that may affect vasodilatory function.
  • Use of other traditional Chinese medicine preparations or dietary supplements with known anti-inflammatory or antioxidant effects, such as curcumin or coenzyme Q10, within 1 month before screening.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Putuo Hospital, Shanghai University of Traditional Chinese Medicine

    Shanghai, Shanghai Municipality, 200062

Other trials in China

About this study

Official title: Effect of Huangqi Gegen Decoction on Endothelial Function and Its Mechanisms in Patients With Qi-Yin Deficiency Syndrome and Type 2 Diabetes Mellitus at Very High Risk for Atherosclerotic Cardiovascular Disease

This clinical trial evaluates whether Huangqi Gegen Decoction can improve blood vessel function in adults with type 2 diabetes mellitus who are at very high risk of atherosclerotic cardiovascular disease and meet the traditional Chinese medicine criteria for Qi-Yin deficiency syndrome.

A total of 90 participants are randomly assigned in a 1:1 ratio to receive either Huangqi Gegen Decoction granules or matching placebo granules, in addition to their usual guideline-based treatment, for 12 weeks. Participants and investigators are blinded to treatment assignment.

Read more

The main outcome is flow-mediated dilation (FMD), a noninvasive measure of how well blood vessels dilate. The study also evaluates blood glucose control, blood markers related to endothelial function and inflammation, traditional Chinese medicine syndrome scores, and safety.

The investigators hypothesize that Huangqi Gegen Decoction, when added to conventional treatment, will improve endothelial function compared with placebo.

Read the detailed description

This is a single-center, randomized, double-blind, placebo-controlled clinical trial conducted at Putuo Hospital, Shanghai University of Traditional Chinese Medicine.

Eligible participants are adults aged 18 to 75 years with type 2 diabetes mellitus, very high risk of atherosclerotic cardiovascular disease, and Qi-Yin deficiency syndrome according to traditional Chinese medicine criteria. Participants are randomly assigned in a 1:1 ratio to the experimental group or the placebo control group.

Both groups continue stable conventional treatment for diabetes and cardiovascular risk management. The experimental group receives Huangqi Gegen Decoction granules in addition to conventional treatment, while the control group receives matching placebo granules in addition to conventional treatment. The intervention period is 12 weeks. The study medication and placebo are designed to have similar appearance, packaging, and administration, and participants and investigators remain blinded to treatment assignment.

Participants are assessed at baseline and followed during the 12-week treatment period. Flow-mediated dilation is assessed as the primary measure of endothelial function. Additional assessments include glucose metabolism, biomarkers related to endothelial function and inflammation, traditional Chinese medicine syndrome scores, and safety outcomes. Adverse events and concomitant medications are monitored throughout the study.

The study is designed to determine whether adding Huangqi Gegen Decoction to conventional treatment provides additional improvement in endothelial function and related clinical measures compared with conventional treatment plus placebo.

Being tested
Huangqi Gegen Decoction Granules, Placebo Granules, Conventional Treatment
Keywords
Huangqi Gegen Decoction, Qi-Yin Deficiency Syndrome, Flow-Mediated Dilation, Endothelial Function, Traditional Chinese Medicine, Atherosclerotic Cardiovascular Disease, ASCVD
Medical subject headings
Diabetes Mellitus, Type 2, Atherosclerosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Huangqi Gegen Decoction GranulesDrug

    Huangqi Gegen Decoction granules consist of Huangqi 30 g and Gegen 15 g per daily prescription. Participants receive 2 bags per administration, twice daily, for 12 weeks, in addition to stable conventional treatment. The granules are manufactured by Jiangyin Tianjiang Pharmaceutical Co., Ltd.

  • Placebo GranulesDrug

    Matching placebo granules mainly consist of maltodextrin. Participants receive 2 bags per administration, twice daily, for 12 weeks, in addition to stable conventional treatment. The placebo is matched to Huangqi Gegen Decoction granules in appearance, packaging, dosage, and administration.

  • Conventional TreatmentOther

    Participants continue their stable pre-study conventional treatment regimen for diabetes and cardiovascular risk management throughout the 12-week study. Treatment is continued according to the participant's pre-study regimen and relevant Chinese clinical guidelines, with clinically necessary adjustments permitted for safety.

Study groups in NCT07775664
Study groupRoleWhat they receive
Huangqi Gegen Decoction GroupExperimentalParticipants receive Huangqi Gegen Decoction granules in addition to stable conventional treatment for 12 weeks. Conventional treatment is continued according to the participant's pre-study treatment regimen and relevant clinical guidelines.
Receives: Drug: Huangqi Gegen Decoction Granules; Other: Conventional Treatment
Placebo Comparator GroupPlacebo comparatorParticipants receive matching placebo granules in addition to stable conventional treatment for 12 weeks. The placebo mainly contains maltodextrin and is matched to Huangqi Gegen Decoction granules in appearance, packaging, and administration.
Receives: Drug: Placebo Granules; Other: Conventional Treatment

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change From Baseline in Flow-Mediated Dilation (FMD)

    Flow-mediated dilation (FMD) is assessed at baseline and after 12 weeks of treatment using the standardized FMD assessment procedure specified in the study protocol. The change from baseline to Week 12 will be compared between the two treatment groups. Higher FMD values indicate better endothelial-dependent vasodilatory function.

    Measured: Baseline and Week 12

Secondary outcomes (11)
  1. Change From Baseline in Fasting Plasma Glucose (FPG)

    Fasting plasma glucose is measured at baseline and Week 12. The change from baseline to Week 12 will be compared between the two treatment groups.

    Measured: Baseline and Week 12

  2. Change From Baseline in 2-Hour Postprandial Blood Glucose

    Two-hour postprandial blood glucose is measured at baseline and Week 12. The change from baseline to Week 12 will be compared between the two treatment groups.

    Measured: Baseline and Week 12

  3. Change From Baseline in Glycated Hemoglobin (HbA1c)

    Glycated hemoglobin (HbA1c) is measured at baseline and Week 12. The change from baseline to Week 12 will be compared between the two treatment groups.

    Measured: Baseline and Week 12

  4. Change From Baseline in von Willebrand Factor (vWF)

    Von Willebrand factor (vWF), a biomarker related to endothelial function, is measured at baseline and Week 12 using the prespecified laboratory method. The change from baseline will be compared between groups.

    Measured: Baseline and Week 12

  5. Change From Baseline in Endothelial Nitric Oxide Synthase (eNOS)

    Endothelial nitric oxide synthase (eNOS) is assessed at baseline and Week 12 as a marker related to endothelial function. The change from baseline will be compared between the two treatment groups.

    Measured: Baseline and Week 12

  6. Change From Baseline in Endothelin-1 (ET-1)

    Endothelin-1 (ET-1), a biomarker associated with vascular endothelial function, is measured at baseline and Week 12. The change from baseline will be compared between groups.

    Measured: Baseline and Week 12

  7. Change From Baseline in Thromboxane B2 (TXB2)

    Thromboxane B2 (TXB2) is measured at baseline and Week 12 using the prespecified laboratory method. The change from baseline will be compared between the two treatment groups.

    Measured: Baseline and Week 12

  8. Change From Baseline in Soluble Vascular Cell Adhesion Molecule-1 (sVCAM-1)

    Soluble vascular cell adhesion molecule-1 (sVCAM-1), a biomarker related to endothelial activation and inflammation, is measured at baseline and Week 12. The change from baseline will be compared between groups.

    Measured: Baseline and Week 12

  9. Change From Baseline in Interleukin-18 (IL-18)

    Interleukin-18 (IL-18) is measured at baseline and Week 12 as an inflammation-related biomarker. The change from baseline will be compared between the two treatment groups.

    Measured: Baseline and Week 12

  10. Change From Baseline in Traditional Chinese Medicine Syndrome Score

    The traditional Chinese medicine syndrome score is assessed according to the prespecified criteria for Qi-Yin deficiency syndrome, including primary symptoms, secondary symptoms, tongue characteristics, and pulse characteristics. The change from baseline to Week 12 will be evaluated.

    Measured: Baseline and Week 12

  11. Number of Participants With Adverse Events

    The number of participants experiencing at least one adverse event during the 12-week treatment period will be recorded. Adverse events are documented regardless of their relationship to the study intervention.

    Measured: From the start of treatment through Week 12

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Aug 2026
  2. Study start4 Aug 2026
  3. Primary completion30 Oct 2026 (estimated)
  4. Study completion30 Oct 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Participants are randomized in a 1:1 ratio to two parallel groups receiving Huangqi Gegen Decoction granules or matching placebo granules in addition to conventional treatment for 12 weeks.
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
90 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07775664
Sponsor's protocol ID
HQGGT-ASCVD-2026-01
Status last verified
Aug 2026
First submitted
16 Aug 2026
Last updated
20 Aug 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Individual participant data will not be shared with other researchers. Study data will be used for the purposes of this study and managed in accordance with the approved study protocol and applicable privacy and ethical requirements.

Questions about this trial

What is this clinical trial studying?

A study testing Huangqi Gegen Decoction Granules and Conventional Treatment in people with Type 2 Diabetes Mellitus and Endothelial Dysfunction, run by Putuo Hospital, Shanghai University of Traditional Chinese Medicine at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 20 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change From Baseline in Flow-Mediated Dilation (FMD) (time frame: Baseline and Week 12). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Aug 2026.

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