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CompletedPhase 1Results posted

A Study of Tirzepatide in Chinese Participants With Type 2 Diabetes Mellitus

A Multiple Dose Titration Study in Chinese Patients With Type 2 Diabetes Mellitus to Investigate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Efficacy of Tirzepatide

Asset

Tirzepatide

Subcutaneous · GLP-1 / GIP dual

Listed sites

2

Recruiting sites

Enrollment

24

actual

Study population

Type 2 diabetes

Key I/E criterion

Primary endpoint

Serious AEs (any)

Footprint

Where this trial recruits

Site locations as reported to ClinicalTrials.gov. Site count is not enrollment count; per-site enrollment is not available from source.

Identifiers

Registered as

NCT IDNCT04235959
Org study ID17379
Secondary IDI8F-MC-GPHTEli Lilly and Company

Timeline

Milestones

Study first posted2020-01-22actual
Study start2020-10-21actual
Primary completion2021-08-17actual
Study completion2021-08-17actual
Last update posted2023-07-06actual
Results first posted2023-07-06actual

Assets

Investigational agents

Study populations

Who this study enrolls

Type 2 diabetes

Eligibility

Who can enroll

Minimum age20 Years
Maximum age70 Years
SexAll
Healthy volunteersNot accepted

Inclusion criteria

Have type 2 diabetes mellitus (T2DM) controlled with diet and exercise alone or are stable on a single oral antihyperglycemic medication (OAM), metformin, acarbose, or sulphonylureas only (other types of OAM [dipeptidyl peptidase IV inhibitors, sodium-glucose cotransporter-2 inhibitors, and thiazolidinediones] are not allowed in this study), for at least 3 months
Have a body mass greater than or equal to (≥)23 kilograms per square meter (kg/m²), inclusive

Exclusion criteria

Have type 1 diabetes mellitus
Have a history of severe hypoglycemia and/or hypoglycemia unawareness within the 6 months prior to Visit 1
Have a history of heart block or PR interval greater than (>)220 milliseconds (msec) or any abnormality in the 12-lead electrocardiogram (ECG) at screening that, in the opinion of the investigator, increases the risks associated with participating in the study
Have a history or presence of pancreatitis or gastrointestinal (GI) disorder or a GI disease that impacts gastric emptying or could be aggravated by glucagon-like peptide-1 (GLP-1) analogs or dipeptidyl peptidase IV (DPP-IV) inhibitors
Have known allergies to tirzepatide, GLP-1 analogs, or related compounds or any components of the formulation

Endpoints (10)

What's being measured

Protocol endpoints and posted registry outcome measures, grouped into outcome categories. Composite endpoints show their component event types. Standard codes (LOINC, SNOMED CT) are shown where available.

Safety / tolerability / PK

10 endpoints
Primary/registry result

Number of Participants With One or More Serious Adverse Event(s) (SAEs) Considered by the Investigator to be Related to Study Drug Administration.

Time frame:Baseline up to 43 Weeks

Serious AEs (any)

event count, event

Posted result

GroupValue (number), participants95% CI
Placebo1
Cohort 1 (2.5 to 10 Milligram (mg) Tirzepatide)0
Cohort 2 (2.5 to 15 mg Tirzepatide)0
Primary/protocol endpoint

Number of Participants With One or More Serious Adverse Event(s) (SAEs) Considered by the Investigator to be Related to Study Drug Administration.

Time frame:Baseline up to 43 Weeks

Serious AEs (any)

event count, event

Secondary/registry result

Pharmacokinetics (PK): Area Under the Concentration Versus Time Curve From Time Zero to 168 Hour Post-dose (AUC [0-168]) of Tirzepatide (Cohort 1)

Time frame:Week 0 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 7 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 15 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose).

concentration, descriptive

Posted result

GroupValue (geometric_mean), nanogram hour per milliliter (ng*h/mL)95% CI
Cohort 1: 2.5 to 10 mg TirzepatideWeek 035100
Week 7125000
Week 15263000
Secondary/registry result

PK: AUC [0-168] of Tirzepatide (Cohort 2)

Time frame:Week 0 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 7 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 23 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose).

concentration, descriptive

Posted result

GroupValue (geometric_mean), nanogram hour per milliliter (ng*h/mL)95% CI
Cohort 2: 2.5 to 15 mg TirzepatideWeek 030900
Week 7110000
Week 23357000
Secondary/registry result

PK: Maximum Concentration (Cmax) of Tirzepatide (Cohort 1)

Time frame:Week 0 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 7 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 15 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose).

Cmax

concentration, descriptive

Posted result

GroupValue (geometric_mean), nanograms per milliliter (ng/mL)95% CI
Cohort 1: 2.5 to 10 mg TirzepatideWeek 0306
Week 71030
Week 152200
Secondary/registry result

PK: Cmax of Tirzepatide (Cohort 2)

Time frame:Week 0 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 7 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 23 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose).

Cmax

concentration, descriptive

Posted result

GroupValue (geometric_mean), nanograms per milliliter (ng/mL)95% CI
Cohort 2: 2.5 to 15 mg TirzepatideWeek 0257
Week 7915
Week 232930
Secondary/protocol endpoint

Pharmacokinetics (PK): Area Under the Concentration Versus Time Curve From Time Zero to 168 Hour Post-dose (AUC [0-168]) of Tirzepatide (Cohort 1)

Time frame:Week 0 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 7 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 15 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose).

AUC₀–∞

concentration, descriptive

Secondary/protocol endpoint

PK: AUC [0-168] of Tirzepatide (Cohort 2)

Time frame:Week 0 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 7 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 23 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose).

AUC₀–∞

concentration, descriptive

Secondary/protocol endpoint

PK: Maximum Concentration (Cmax) of Tirzepatide (Cohort 1)

Time frame:Week 0 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 7 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 15 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose).

Cmax

concentration, descriptive

Secondary/protocol endpoint

PK: Cmax of Tirzepatide (Cohort 2)

Time frame:Week 0 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 7 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose); Week 23 - (Pre-dose, 8, 24, 48, 72, 168 hours post-dose).

Cmax

concentration, descriptive

Publications (1)

Bibliography

Records linked to this trial through ClinicalTrials.gov references, PubMed NCT search, and curated study seeds. 'Canonical' marks design/result papers; others are registry references or candidates.

Registry references + supporting bibliography

Provenance

Sources

Trial identity, design, statusClinicalTrials.gov API v2
Snapshot dateJuly 1, 2026
Endpoint classificationDelfa endpoint taxonomy v2 (May 13, 2026)
Results tableClinicalTrials.gov results section

Trial facts come from public ClinicalTrials.gov records. Endpoint categories are Delfa's classification of those records, not a ClinicalTrials.gov field. All figures reflect the July 1, 2026 snapshot.