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Long-term Efficacy and Safety of HMS5552 add-on to Metformin in T2DM Subjects

A 24-week Multi-center, Randomized, Double-blind, Placebo-controlled, Phase III Study to Evaluate the Efficacy and Safety of HMS5552 add-on to Metformin With Additional 28-week Open-label Treatment to Evaluate the Safety in T2DM Subjects

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03141073
Enrollment
767
Registered
2017-05-04
Start date
2017-10-15
Completion date
2021-02-28
Last updated
2021-08-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes Mellitus, Type 2

Keywords

GKA, T2DM, HMS5552, Add-on therapy, Metformin

Brief summary

This study evaluates the efficacy and safety and population PK of HMS5552 add-on to Metformin in adult type 2 diabetic subjects. There will be 2 groups in the first 24 weeks, one group will receive HMS5552 plus Metformin, while the other group will receive placebo plus Metformin; after 24 weeks, all subjects will receive HMS5552 plus Metformin for 28 weeks.

Detailed description

This study is a phase III study in subjects with T2DM. As designed, the study will start with a 4-week, single-blind, placebo run-in period based on diet and exercise interventions for screening eligible subjects, meanwhile, subjects are treated with Metformin (Glucophage) at 1500mg/day as basic therapy throughout the treatment period. 3 weeks after run-in, eligibility is confirmed with required laboratory tests at -5±2 days prior to randomization. The eligible subjects are randomly assigned to HMS5552 75mg BID group or placebo BID group with ratio 1:1 to receive a 24-week double-blind treatment. Then all subjects receive 28-week open-label treatment of HMS5552 75mg BID add-on to Metformin. After 52-week treatment, all investigational drugs should be discontinued, followed by 1 week for safety evaluation. The dosage of Metformin (Glucophage) should be maintained at 1500 mg/day from run-in period to treatment completion.

Interventions

BID oral administration

DRUGPlacebo

BID oral administration

Sponsors

Covance
CollaboratorINDUSTRY
Hua Medicine Limited
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Male or female, aged 18\ 75 years old; 2. T2DM and treated with Metformin ≥ 1500mg/day constantly for at least 12 consecutive weeks; 3. 7.5% ≤ HbA1c ≤ 10.0% at screening; 4. 18.5 kg/m2 \< BMI \< 35.0 kg/m2 at screening;

Exclusion criteria

1. Any anti-diabetic therapy other than Metformin within 12 weeks before screening; 2. Received insulin therapy more than 30 days within 1 year before screening; 3. Fasting C-peptide \<0.81 ng/ml (0.27 nmol/L) at screening; 4. Medical history of severe hypoglycemia or frequent hypoglycemia, diabetic ketoacidosis, diabetes lactic acidosis or hyperosmotic nonketotic diabetic coma, severe cardio-cerebrovascular, unstable or rapidly progressive kidney disease, active liver diseases, diagnosed mental disease etc. 5. T1DM;

Design outcomes

Primary

MeasureTime frameDescription
Change from baseline in HbA1c24 weeksThe change of HbA1c from baseline by comparing HMS5552 75 mg BID in combination with Metformin with Placebo BID in combination with Metformin in T2DM subjects after 24-week double-blind treatment

Secondary

MeasureTime frameDescription
The change of 2-hour postprandial plasma glucose (2h-PPG) from baseline24 weeksThe change of 2-hour postprandial plasma glucose (2h-PPG) from baseline by comparing HMS5552 75 mg BID in combination with Metformin with Placebo BID in combination with Metformin in T2DM subjects after 24-week double-blind treatment
The change of fasting plasma glucose (FPG) from baseline24 weeksThe change of fasting plasma glucose (FPG) from baseline by comparing HMS5552 75 mg BID in combination with Metformin with Placebo BID in combination with Metformin in T2DM subjects after 24-week double-blind treatment
The proportion of subjects with HbA1c < 7.0%24 weeksHbA1c response rate by comparing HMS5552 75 mg BID in combination with Metformin with Placebo BID in combination with Metformin in T2DM subjects after 24-week double-blind treatment
The change of HbA1c from baseline at each visit over time, except at Week 2424 weeksThe change of HbA1c from baseline by comparing HMS5552 75 mg BID in combination with Metformin with Placebo BID in combination with Metformin in T2DM subjects at each visit over time, except at Week 24
Incidence of Treatment-Emergent Adverse Events over time52 weeksincluding incidence of adverse events, incidence of hypoglycemic events, physical examination, vital signs, 12-lead ECG, clinical laboratory examinations (routine blood test, blood biochemistry and routine urine test).

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 18, 2026