Effects of Modulators of Gluconeogenesis, Glycogenolysis and Glucokinase Activity

NCT ID: NCT05098470

Last Updated: 2025-07-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE3

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-03-07

Study Completion Date

2026-07-29

Brief Summary

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It has been shown that individuals with type 2 diabetes have higher blood sugar throughout the night than individuals without type 2 diabetes. However, it is still unknown if this rise in blood sugar can be controlled using medications.

This study will examine the effects of three different diabetes treatments to determine if they improve night time blood sugars. Participants will be randomly assigned for 8 weeks to one of the following three groups:

GROUP 1: Insulin. Participants will be instructed on self-injecting insulin glargine once-daily in the morning. The dose will be increased by the study team to avoid episodes of low blood sugar and to maintain fasting blood sugar concentrations between 70 to 180 mg/dl.

GROUP 2: Metformin. Participants will start the drug (500 mg twice daily) with meals. After 72 hours and in the absence of side effects, they will increase the dose to 500 mg with breakfast and 1,000 mg with supper. After a further 72 hours and in the absence of side effects, they will increase the dose to 1,000 mg twice daily with meals and continue until the end of the trial. The dose will be adjusted by the study team to maintain fasting blood sugar concentrations between 70 to 180 mg/dl.

GROUP 3: Dorzagliatin. This medication dose will be 75 mg twice daily. The investigators anticipate fasting glucose concentrations will be between 70 to 180 mg/dl since the dose of this medication cannot be titrated.

Detailed Description

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Conditions

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Type 2 Diabetes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Metformin

Group Type ACTIVE_COMPARATOR

Metformin

Intervention Type DRUG

1500-2000 mg per day for 8 weeks

Insulin Glargine

Group Type ACTIVE_COMPARATOR

Insulin Glargine

Intervention Type DRUG

Long-acting insulin for 8 weeks

Dorzagliatin

Group Type EXPERIMENTAL

Dorzagliatin

Intervention Type DRUG

Oral Glucokinase Activator 75 mg twice daily for 8 weeks

Interventions

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Metformin

1500-2000 mg per day for 8 weeks

Intervention Type DRUG

Insulin Glargine

Long-acting insulin for 8 weeks

Intervention Type DRUG

Dorzagliatin

Oral Glucokinase Activator 75 mg twice daily for 8 weeks

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* BMI:25-40 kg/m2.
* HbA1C ≤ 9% on lifestyle therapy with or without monotherapy with metformin or sulphonylureas (SU); or combination therapies (metformin and SU, DPPIV inhibitors, only short acting GLP-1 analogues exenatide (Byeta) and liraglutide (Victoza).

Exclusion Criteria

* Insulin therapy
* SGLT2 inhibitors
* Long acting GLP-1 analogues
* TZDs
* Medications affecting GI motility (e.g., erythromycin, pramlintide).
* Medications that may affect glucose metabolism such as corticosteroids, tricyclic-antidepressants, benzodiazepines, opiates, barbiturates, and anticoagulants.
* Unstable diabetic retinopathy, microalbuminuria, macrovascular disease.
* Upper GI disorder/surgery, debilitating chronic disease, anemia, and symptoms of undiagnosed illnesses.
* History of alcoholism or substance abuse.
* Pregnancy or breast feeding, or other comorbidities precluding participation.
Minimum Eligible Age

25 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

NIH

Sponsor Role collaborator

University of Alabama at Birmingham

OTHER

Sponsor Role lead

Responsible Party

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Rita Basu

Professor of Medicine

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Rita Basu

Birmingham, Alabama, United States

Site Status

University of Virginia

Charlottesville, Virginia, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Informed Consent Form

View Document

Other Identifiers

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R01DK029953

Identifier Type: NIH

Identifier Source: secondary_id

View Link

210395

Identifier Type: -

Identifier Source: org_study_id

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