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Can a smart carb diet tame type 2 diabetes?

NCT ID NCT06936657

Disease control Sponsor: Shanghai 6th People's Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study will test whether a diet with carefully chosen carbohydrates can improve blood sugar control in people with type 2 diabetes. 150 adults will try both an optimized carbohydrate diet and a standard diabetes diet for 12 weeks each, with a break in between. The goal is to see if the special diet leads to better glucose levels and other health benefits.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
optimized carbohydrate diet
What this could lead to
If successful, this diet could offer a better way to manage blood sugar and improve overall health in people with type 2 diabetes.
What could go wrong
This is a dietary intervention study, not a drug trial. Results may vary, and the diet requires strict adherence. It is not yet recruiting, so outcomes are uncertain.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 150 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Oct 2025

An estimate. Start dates often move.

Expected to finish

Oct 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

35 to 70 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Patients diagnosed with type 2 diabetes according to the ADA diagnostic criteria 2. HbA1c ≥ 7% and \< 9% 3. Antidiabetic medication has been stable for at least 3 months before recruitment 4. Aged 35-70 years 5. Signed the informed consent form Exclusion Criteria: 1. Treatment with insulin 2. Treatment with GLP-1 receptor agonists or DPP-4 inhibitors 3. Occurrence of diabetic ketoacidosis, lactic acidosis, hyperosmolar coma, or recurrent severe hypoglycemia within the past year 4. Having one or more severe chronic diabetic complications, including advanced diabetic retinopathy, macroalbuminuria (urine albumin-to-creatinine ratio ≥300 mg/g), or impaired renal function (eGFR ≤60 ml/min/1.73 m²) 5. Presence of cardiovascular events (e.g., myocardial infarction, stent placement, unstable angina, heart failure, cardiac dysfunction) or cerebrovascular diseases (e.g., intracerebral hemorrhage, ischemic stroke) within the past 6 months 6. Diagnosis of acute or chronic gastrointestinal diseases (e.g., ulcers), hyperthyroidism or hypothyroidism, uncontrolled hypertension, active malignancy not in remission, or other life-threatening diseases 7. Recent use of antibiotics, probiotics, or prebiotics within the past 3 weeks or need for long-term use 8. Unstable medication regimen or use of prescription medications affecting metabolism (e.g., thyroid hormones, glucocorticoids) 9. Pregnancy, breastfeeding, or planning pregnancy 10. Presence of a pacemaker or metal implants, claustrophobia, or other contraindications to fMRI 11. Psychiatric disorders impairing cooperation 12. Expected poor compliance 13. Current or recent (within 4 weeks prior to study initiation) participation in other clinical trials

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Conditions

The condition(s) this trial relates to.

type 2 diabetes mellitus

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Type 2 diabetes mellitus (T2DM)

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  2. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

More trials for these conditions

Other studies related to the condition(s) this trial covers.