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A Study of Tirzepatide (LY3298176) in Participants With Type 2 Diabetes Not Controlled With Diet and Exercise Alone

A Randomized, Double-blind, Placebo-Controlled Trial Comparing the Efficacy and Safety of Three Tirzepatide Doses Versus Placebo in Patients With Type 2 Diabetes, Inadequately Controlled With Diet and Exercise Alone

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03954834
Acronym
SURPASS-1
Enrollment
478
Registered
2019-05-17
Start date
2019-06-03
Completion date
2020-10-28
Last updated
2021-10-20

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

Conditions

Type 2 Diabetes Mellitus

Keywords

glucose-dependent insulinotropic polypeptide (GIP), glucagon-like peptide-1 (GLP-1), GIP/GLP-1 dual receptor agonist, T2DM

Brief summary

The goal for this study is to evaluate the efficacy and safety of tirzepatide versus placebo in participants with type 2 diabetes not under control with diet and exercise alone. The study will last approximately 47 weeks and may include about 15 visits.

Interventions

DRUGTirzepatide

Administered SC

DRUGPlacebo

Administered SC

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

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

Inclusion criteria

* Have been diagnosed with type 2 diabetes mellitus (T2DM). * Are naïve to diabetes injectable therapies and have not used any oral antihyperglycemic medications (OAMs) during the 3 months preceding screening. * Have HbA1c between ≥7.0% and ≤9.5%. * Be of stable weight (± 5%) for at least 3 months before screening. * Have a BMI ≥23 kilograms per meter squared (kg/m²) at screening.

Exclusion criteria

* Have type 1 diabetes mellitus. * Have had chronic or acute pancreatitis any time prior to study entry. * Have proliferative diabetic retinopathy or diabetic maculopathy or nonproliferative diabetic retinopathy requiring acute treatment. * Have disorders associated with slowed emptying of the stomach, or have had any stomach surgeries for the purpose of weight loss. * Have an estimated glomerular filtration rate \<30 mL/minute/1.73 m². * Have had a heart attack, stroke, or hospitalization for congestive heart failure in the past 2 months. * Have a personal or family history of medullary thyroid carcinoma or personal history of multiple endocrine neoplasia syndrome type 2. * Have been taking weight loss drugs, including over-the-counter medications during the last 3 months.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Hemoglobin A1c (HbA1c)Baseline, Week 40HbA1c is the glycosylated fraction of hemoglobin A. HbA1c is measured primarily to identify average plasma glucose concentration over prolonged periods of time. Least Squares (LS) mean was determined by mixed-model repeated measures (MMRM) model with Baseline + Pooled Country + Prior Use of oral antihyperglycemic medication (OAM) (Yes, No) + Treatment + Time + Treatment\*Time (Type III sum of squares).

Secondary

MeasureTime frameDescription
Percentage of Participants With HbA1c Target Value of <7%Week 40Hemoglobin A1c (HbA1c) is the glycosylated fraction of hemoglobin A. HbA1c is measured to identify average plasma glucose concentration over prolonged periods of time.
Change From Baseline in Fasting Serum GlucoseBaseline, Week 40Fasting serum glucose (FSG) is a test to determine sugar levels in serum sample after an overnight fast. Least Squares (LS) mean was determined by mixed-model repeated measures (MMRM) model with Baseline + Pooled Country + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Prior Use of OAM (Yes, No) + Treatment + Time + Treatment\*Time (Type III sum of squares).
Percentage of Participants With HbA1c Target Value of <5.7%Week 40Hemoglobin A1c (HbA1c) is the glycosylated fraction of hemoglobin A. HbA1c is measured to identify average plasma glucose concentration over prolonged periods of time.
Change From Baseline in Body WeightBaseline, Week 40Least Squares (LS) mean was determined by mixed-model repeated measures (MMRM) model with Baseline + Pooled Country + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Prior Use of OAM (Yes, No) + Treatment + Time + Treatment\*Time (Type III sum of squares).
Percentage of Participants Who Achieved Weight Loss ≥5%Week 40Percentage of Participants who Achieved Weight Loss ≥5%.
Rate of Hypoglycemia With Blood Glucose <54 Milligram/Deciliter (mg/dL) [<3.0 Millimole/Liter (mmol/L)] or Severe HypoglycemiaBaseline through end of safety follow-up (up to week 44)The hypoglycemia events were defined by participant reported events with blood glucose \<54mg/dL) (\<3.0 mmol/L\] or severe hypoglycemia. Severe hypoglycemia is defined as an episode with severe cognitive impairment requiring the assistance of another person to actively administer carbohydrate, glucagon, or other resuscitative actions. These episodes may be associated with sufficient neuroglycopenia to induce seizure or coma. The rate of postbaseline hypoglycemia was estimated by negative binomial model: number of episodes = Pooled Country + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Prior Use of OAM (Yes, No) + Treatment, with log (exposure in days/365.25) as an offset variable.
Pharmacokinetics (PK): Steady State Area Under the Concentration Time Curve (AUC) of TirzepatideWeek 7, 15 and 23Pharmacokinetics (PK): Steady State Area Under the Concentration Time Curve (AUC) of Tirzepatide. AUC is a combined measure obtained from Week 7, 15 and 23, and a single averaged measure of AUC was reported.
Mean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesBaseline, Week 40The self-monitored plasma glucose (SMBG) data were collected at the following 7 time points: Morning Premeal - Fasting, Morning 2-hour Postmeal, Midday Premeal, Midday 2-hour Postmeal, Evening Premeal, Evening 2-hour Postmeal and Bedtime. Least Squares (LS) mean was determined by mixed-model repeated measures (MMRM) model with Baseline + Pooled Country + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Prior Use of OAM (Yes, No) + Treatment + Time + Treatment\*Time (Type III sum of squares).

Countries

India, Japan, Mexico, Puerto Rico, United States

Participant flow

Participants by arm

ArmCount
5 mg Tirzepatide
Participants received 5 mg of tirzepatide as subcutaneous injection once a week.
121
10 mg Tirzepatide
Participants received 10mg of tirzepatide as subcutaneous injection once a week.
121
15 mg Tirzepatide
Participants received 15mg of tirzepatide as subcutaneous injection once a week.
121
Placebo
Participants received placebo as subcutaneous injection once a week.
115
Total478

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event1311
Overall StudyDeath0001
Overall StudyLost to Follow-up3235
Overall StudyParticipant left the country0010
Overall StudyPhysician Decision0102
Overall StudyProtocol Violation1001
Overall StudyWithdrawal by Subject23136

Baseline characteristics

CharacteristicTotalPlacebo15 mg Tirzepatide10 mg Tirzepatide5 mg Tirzepatide
Age, Continuous54.10 years
STANDARD_DEVIATION 11.88
53.60 years
STANDARD_DEVIATION 12.79
52.90 years
STANDARD_DEVIATION 12.34
55.80 years
STANDARD_DEVIATION 10.35
54.10 years
STANDARD_DEVIATION 11.88
Ethnicity (NIH/OMB)
Hispanic or Latino
207 Participants48 Participants55 Participants54 Participants50 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
184 Participants45 Participants42 Participants49 Participants48 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
87 Participants22 Participants24 Participants18 Participants23 Participants
Hemoglobin A1c7.94 Percentage of HbA1c
STANDARD_DEVIATION 0.87
8.05 Percentage of HbA1c
STANDARD_DEVIATION 0.8
7.85 Percentage of HbA1c
STANDARD_DEVIATION 1.02
7.90 Percentage of HbA1c
STANDARD_DEVIATION 0.78
7.97 Percentage of HbA1c
STANDARD_DEVIATION 0.841
Race (NIH/OMB)
American Indian or Alaska Native
118 Participants26 Participants30 Participants31 Participants31 Participants
Race (NIH/OMB)
Asian
168 Participants38 Participants42 Participants43 Participants45 Participants
Race (NIH/OMB)
Black or African American
22 Participants5 Participants6 Participants4 Participants7 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
170 Participants46 Participants43 Participants43 Participants38 Participants
Region of Enrollment
India
73 Participants17 Participants18 Participants20 Participants18 Participants
Region of Enrollment
Japan
89 Participants21 Participants23 Participants22 Participants23 Participants
Region of Enrollment
Mexico
164 Participants40 Participants42 Participants40 Participants42 Participants
Region of Enrollment
Puerto Rico
12 Participants1 Participants5 Participants4 Participants2 Participants
Region of Enrollment
United States
140 Participants36 Participants33 Participants35 Participants36 Participants
Sex: Female, Male
Female
231 Participants59 Participants58 Participants49 Participants65 Participants
Sex: Female, Male
Male
247 Participants56 Participants63 Participants72 Participants56 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 1210 / 1210 / 1211 / 115
other
Total, other adverse events
50 / 12155 / 12153 / 12154 / 115
serious
Total, serious adverse events
5 / 1212 / 1211 / 1213 / 115

Outcome results

Primary

Change From Baseline in Hemoglobin A1c (HbA1c)

HbA1c is the glycosylated fraction of hemoglobin A. HbA1c is measured primarily to identify average plasma glucose concentration over prolonged periods of time. Least Squares (LS) mean was determined by mixed-model repeated measures (MMRM) model with Baseline + Pooled Country + Prior Use of oral antihyperglycemic medication (OAM) (Yes, No) + Treatment + Time + Treatment\*Time (Type III sum of squares).

Time frame: Baseline, Week 40

Population: All randomized participants who received at least 1 dose of study drug and had a baseline and at least 1 post-baseline value, excluding patients discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or prematurely stopping study drug.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
5 mg TirzepatideChange From Baseline in Hemoglobin A1c (HbA1c)-1.87 Percentage of HbA1cStandard Error 0.094
10 mg TirzepatideChange From Baseline in Hemoglobin A1c (HbA1c)-1.89 Percentage of HbA1cStandard Error 0.096
15 mg TirzepatideChange From Baseline in Hemoglobin A1c (HbA1c)-2.07 Percentage of HbA1cStandard Error 0.098
PlaceboChange From Baseline in Hemoglobin A1c (HbA1c)0.04 Percentage of HbA1cStandard Error 0.105
p-value: <0.00195% CI: [-2.18, -1.63]Mixed Models Analysis
p-value: <0.00195% CI: [-2.21, -1.65]Mixed Models Analysis
p-value: <0.00195% CI: [-2.39, -1.83]Mixed Models Analysis
Secondary

Change From Baseline in Body Weight

Least Squares (LS) mean was determined by mixed-model repeated measures (MMRM) model with Baseline + Pooled Country + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Prior Use of OAM (Yes, No) + Treatment + Time + Treatment\*Time (Type III sum of squares).

Time frame: Baseline, Week 40

Population: All randomized participants who received at least 1 dose of study drug and had a baseline and at least 1 post-baseline value, excluding patients discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or prematurely stopping study drug.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
5 mg TirzepatideChange From Baseline in Body Weight-7.0 Kilograms (kg)Standard Error 0.52
10 mg TirzepatideChange From Baseline in Body Weight-7.8 Kilograms (kg)Standard Error 0.53
15 mg TirzepatideChange From Baseline in Body Weight-9.5 Kilograms (kg)Standard Error 0.54
PlaceboChange From Baseline in Body Weight-0.7 Kilograms (kg)Standard Error 0.57
p-value: <0.00195% CI: [-7.8, -4.7]Mixed Models Analysis
p-value: <0.00195% CI: [-8.6, -5.5]Mixed Models Analysis
p-value: <0.00195% CI: [-10.3, -7.2]Mixed Models Analysis
Secondary

Change From Baseline in Fasting Serum Glucose

Fasting serum glucose (FSG) is a test to determine sugar levels in serum sample after an overnight fast. Least Squares (LS) mean was determined by mixed-model repeated measures (MMRM) model with Baseline + Pooled Country + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Prior Use of OAM (Yes, No) + Treatment + Time + Treatment\*Time (Type III sum of squares).

Time frame: Baseline, Week 40

Population: All randomized participants who received at least 1 dose of study drug and had a baseline and at least 1 post-baseline value, excluding patients discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or prematurely stopping study drug.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
5 mg TirzepatideChange From Baseline in Fasting Serum Glucose-43.6 milligram per Deciliter (mg/dL)Standard Error 3.4
10 mg TirzepatideChange From Baseline in Fasting Serum Glucose-45.9 milligram per Deciliter (mg/dL)Standard Error 3.45
15 mg TirzepatideChange From Baseline in Fasting Serum Glucose-49.3 milligram per Deciliter (mg/dL)Standard Error 3.62
PlaceboChange From Baseline in Fasting Serum Glucose12.9 milligram per Deciliter (mg/dL)Standard Error 4
p-value: 0.77695% CI: [-11.9, 8.9]Mixed Models Analysis
p-value: 0.62295% CI: [-13, 7.8]Mixed Models Analysis
p-value: 0.90895% CI: [-11.1, 9.8]Mixed Models Analysis
Secondary

Mean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) Values

The self-monitored plasma glucose (SMBG) data were collected at the following 7 time points: Morning Premeal - Fasting, Morning 2-hour Postmeal, Midday Premeal, Midday 2-hour Postmeal, Evening Premeal, Evening 2-hour Postmeal and Bedtime. Least Squares (LS) mean was determined by mixed-model repeated measures (MMRM) model with Baseline + Pooled Country + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Prior Use of OAM (Yes, No) + Treatment + Time + Treatment\*Time (Type III sum of squares).

Time frame: Baseline, Week 40

Population: All randomized participants who received at least 1 dose of study drug and had a baseline and at least 1 post-baseline value, excluding patients discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or prematurely stopping study drug.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
5 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMorning Premeal - Fasting-46.9 mg/dLStandard Error 2.09
5 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesEvening 2-hour Postmeal-61.9 mg/dLStandard Error 3.76
5 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesEvening Premeal-44.8 mg/dLStandard Error 2.8
5 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMorning 2-hour Postmeal-69.5 mg/dLStandard Error 3.41
5 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesBedtime-57.0 mg/dLStandard Error 3.49
5 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMidday Premeal-43.5 mg/dLStandard Error 2.8
5 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMidday 2-hour Postmeal-64.2 mg/dLStandard Error 3.6
10 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesEvening 2-hour Postmeal-62.8 mg/dLStandard Error 3.81
10 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMidday 2-hour Postmeal-60.0 mg/dLStandard Error 3.63
10 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMidday Premeal-42.5 mg/dLStandard Error 2.82
10 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesEvening Premeal-45.1 mg/dLStandard Error 2.82
10 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesBedtime-59.8 mg/dLStandard Error 3.52
10 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMorning 2-hour Postmeal-61.4 mg/dLStandard Error 3.44
10 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMorning Premeal - Fasting-47.9 mg/dLStandard Error 2.11
15 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMidday 2-hour Postmeal-63.4 mg/dLStandard Error 3.84
15 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMorning Premeal - Fasting-45.7 mg/dLStandard Error 2.23
15 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMorning 2-hour Postmeal-68.9 mg/dLStandard Error 3.66
15 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMidday Premeal-42.7 mg/dLStandard Error 3
15 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesEvening Premeal-42.3 mg/dLStandard Error 3.02
15 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesEvening 2-hour Postmeal-63.5 mg/dLStandard Error 4.03
15 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesBedtime-60.8 mg/dLStandard Error 3.66
PlaceboMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMidday Premeal-2.6 mg/dLStandard Error 3.42
PlaceboMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesBedtime-9.1 mg/dLStandard Error 4.1
PlaceboMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesEvening 2-hour Postmeal-10.3 mg/dLStandard Error 4.52
PlaceboMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMorning 2-hour Postmeal-11.6 mg/dLStandard Error 4.12
PlaceboMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMorning Premeal - Fasting-9.2 mg/dLStandard Error 2.53
PlaceboMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesEvening Premeal-5.8 mg/dLStandard Error 3.38
PlaceboMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesMidday 2-hour Postmeal-12.7 mg/dLStandard Error 4.33
Comparison: Morning Premeal - Fastingp-value: <0.00195% CI: [-44.1, -31.2]Mixed Models Analysis
Comparison: Morning Premeal - Fastingp-value: <0.00195% CI: [-45.1, -32.2]Mixed Models Analysis
Comparison: Morning Premeal - Fastingp-value: <0.00195% CI: [-43.1, -29.8]Mixed Models Analysis
Comparison: Morning 2-hour Postmealp-value: <0.00195% CI: [-68.4, -47.4]Mixed Models Analysis
Comparison: Morning 2-hour Postmealp-value: <0.00195% CI: [-60.3, -39.2]Mixed Models Analysis
Comparison: Morning 2-hour Postmealp-value: <0.00195% CI: [-68.1, -46.4]Mixed Models Analysis
Comparison: Midday Premealp-value: <0.00195% CI: [-49.6, -32.2]Mixed Models Analysis
Comparison: Midday Premealp-value: <0.00195% CI: [-48.6, -31.2]Mixed Models Analysis
Comparison: Midday Premealp-value: <0.00195% CI: [-49, -31.1]Mixed Models Analysis
Comparison: Midday 2-hour Postmealp-value: <0.00195% CI: [-62.5, -40.4]Mixed Models Analysis
Comparison: Midday 2-hour Postmealp-value: <0.00195% CI: [-58.4, -36.2]Mixed Models Analysis
Comparison: Midday 2-hour Postmealp-value: <0.00195% CI: [-62.1, -39.3]Mixed Models Analysis
Comparison: Evening Premealp-value: <0.00195% CI: [-47.6, -30.4]Mixed Models Analysis
Comparison: Evening Premealp-value: <0.00195% CI: [-47.9, -30.6]Mixed Models Analysis
Comparison: Evening Premealp-value: <0.00195% CI: [-45.3, -27.5]Mixed Models Analysis
Comparison: Evening 2-hour Postmealp-value: <0.00195% CI: [-63.2, -40.1]Mixed Models Analysis
Comparison: Evening 2-hour Postmealp-value: <0.00195% CI: [-64.1, -40.9]Mixed Models Analysis
Comparison: Evening 2-hour Postmealp-value: <0.00195% CI: [-65.1, -41.3]Mixed Models Analysis
Comparison: Bedtimep-value: <0.00195% CI: [-58.6, -37.4]Mixed Models Analysis
Comparison: Bedtimep-value: <0.00195% CI: [-61.3, -40.1]Mixed Models Analysis
p-value: <0.00195% CI: [-62.6, -40.9]Mixed Models Analysis
Secondary

Percentage of Participants Who Achieved Weight Loss ≥5%

Percentage of Participants who Achieved Weight Loss ≥5%.

Time frame: Week 40

Population: All randomized participants who received at least 1 dose of study drug and had a baseline and at least 1 post-baseline value, excluding patients discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or prematurely stopping study drug.

ArmMeasureValue (NUMBER)
5 mg TirzepatidePercentage of Participants Who Achieved Weight Loss ≥5%66.94 Percentage of participants
10 mg TirzepatidePercentage of Participants Who Achieved Weight Loss ≥5%77.97 Percentage of participants
15 mg TirzepatidePercentage of Participants Who Achieved Weight Loss ≥5%76.72 Percentage of participants
PlaceboPercentage of Participants Who Achieved Weight Loss ≥5%14.29 Percentage of participants
p-value: <0.00195% CI: [6.43, 23.94]Regression, Logistic
p-value: <0.00195% CI: [10.59, 42.18]Regression, Logistic
p-value: <0.00195% CI: [10.09, 40.04]Regression, Logistic
Secondary

Percentage of Participants With HbA1c Target Value of <5.7%

Hemoglobin A1c (HbA1c) is the glycosylated fraction of hemoglobin A. HbA1c is measured to identify average plasma glucose concentration over prolonged periods of time.

Time frame: Week 40

Population: All randomized participants who received at least 1 dose of study drug and had a baseline and at least 1 post-baseline value, excluding patients discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or prematurely stopping study drug.

ArmMeasureValue (NUMBER)
5 mg TirzepatidePercentage of Participants With HbA1c Target Value of <5.7%33.88 Percentage of participants
10 mg TirzepatidePercentage of Participants With HbA1c Target Value of <5.7%30.51 Percentage of participants
15 mg TirzepatidePercentage of Participants With HbA1c Target Value of <5.7%51.72 Percentage of participants
PlaceboPercentage of Participants With HbA1c Target Value of <5.7%0.89 Percentage of participants
p-value: <0.00195% CI: [7.74, 209.71]Regression, Logistic
p-value: <0.00195% CI: [6.53, 178.19]Regression, Logistic
p-value: <0.00195% CI: [16.36, 443.13]Regression, Logistic
Secondary

Percentage of Participants With HbA1c Target Value of <7%

Hemoglobin A1c (HbA1c) is the glycosylated fraction of hemoglobin A. HbA1c is measured to identify average plasma glucose concentration over prolonged periods of time.

Time frame: Week 40

Population: All randomized participants who received at least 1 dose of study drug and had a baseline and at least 1 post-baseline value, excluding patients discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or prematurely stopping study drug.

ArmMeasureValue (NUMBER)
5 mg TirzepatidePercentage of Participants With HbA1c Target Value of <7%86.78 Percentage of participants
10 mg TirzepatidePercentage of Participants With HbA1c Target Value of <7%91.53 Percentage of participants
15 mg TirzepatidePercentage of Participants With HbA1c Target Value of <7%87.93 Percentage of participants
PlaceboPercentage of Participants With HbA1c Target Value of <7%19.64 Percentage of participants
p-value: <0.00195% CI: [21.12, 113.67]Regression, Logistic
p-value: <0.00195% CI: [31.8, 203.19]Regression, Logistic
p-value: <0.00195% CI: [22.3, 125.73]Regression, Logistic
Secondary

Pharmacokinetics (PK): Steady State Area Under the Concentration Time Curve (AUC) of Tirzepatide

Pharmacokinetics (PK): Steady State Area Under the Concentration Time Curve (AUC) of Tirzepatide. AUC is a combined measure obtained from Week 7, 15 and 23, and a single averaged measure of AUC was reported.

Time frame: Week 7, 15 and 23

Population: All randomized participants who received at least one dose of study drug and had evaluable PK data.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
5 mg TirzepatidePharmacokinetics (PK): Steady State Area Under the Concentration Time Curve (AUC) of Tirzepatide86900 nanograms*hours per milliliter (h*ng/mL)Geometric Coefficient of Variation 25.4
10 mg TirzepatidePharmacokinetics (PK): Steady State Area Under the Concentration Time Curve (AUC) of Tirzepatide171000 nanograms*hours per milliliter (h*ng/mL)Geometric Coefficient of Variation 26.2
15 mg TirzepatidePharmacokinetics (PK): Steady State Area Under the Concentration Time Curve (AUC) of Tirzepatide252000 nanograms*hours per milliliter (h*ng/mL)Geometric Coefficient of Variation 23.3
Secondary

Rate of Hypoglycemia With Blood Glucose <54 Milligram/Deciliter (mg/dL) [<3.0 Millimole/Liter (mmol/L)] or Severe Hypoglycemia

The hypoglycemia events were defined by participant reported events with blood glucose \<54mg/dL) (\<3.0 mmol/L\] or severe hypoglycemia. Severe hypoglycemia is defined as an episode with severe cognitive impairment requiring the assistance of another person to actively administer carbohydrate, glucagon, or other resuscitative actions. These episodes may be associated with sufficient neuroglycopenia to induce seizure or coma. The rate of postbaseline hypoglycemia was estimated by negative binomial model: number of episodes = Pooled Country + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Prior Use of OAM (Yes, No) + Treatment, with log (exposure in days/365.25) as an offset variable.

Time frame: Baseline through end of safety follow-up (up to week 44)

Population: All randomized participants who received at least 1 dose of study drug and had a baseline and at least 1 post-baseline value.

ArmMeasureValue (MEAN)Dispersion
5 mg TirzepatideRate of Hypoglycemia With Blood Glucose <54 Milligram/Deciliter (mg/dL) [<3.0 Millimole/Liter (mmol/L)] or Severe Hypoglycemia0.02 Episodes/participant/365.25 daysStandard Error 0.002
10 mg TirzepatideRate of Hypoglycemia With Blood Glucose <54 Milligram/Deciliter (mg/dL) [<3.0 Millimole/Liter (mmol/L)] or Severe Hypoglycemia0.02 Episodes/participant/365.25 daysStandard Error 0.002
15 mg TirzepatideRate of Hypoglycemia With Blood Glucose <54 Milligram/Deciliter (mg/dL) [<3.0 Millimole/Liter (mmol/L)] or Severe Hypoglycemia0.02 Episodes/participant/365.25 daysStandard Error 0.002
PlaceboRate of Hypoglycemia With Blood Glucose <54 Milligram/Deciliter (mg/dL) [<3.0 Millimole/Liter (mmol/L)] or Severe Hypoglycemia0.04 Episodes/participant/365.25 daysStandard Error 0.028

Source: ClinicalTrials.gov · Data processed: Feb 22, 2026