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A Study of Tirzepatide (LY3298176) Versus Insulin Degludec in Participants With Type 2 Diabetes

A Randomized, Phase 3, Open-Label Trial Comparing the Effect of LY3298176 Versus Titrated Insulin Degludec on Glycemic Control in Patients With Type 2 Diabetes

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03882970
Acronym
SURPASS-3
Enrollment
1444
Registered
2019-03-20
Start date
2019-04-01
Completion date
2021-01-04
Last updated
2022-01-19

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

T2DM

Brief summary

The purpose of this study is to compare the effect of the study drug tirzepatide to insulin degludec on blood sugar levels in participants with type 2 diabetes. The study will last about 67 weeks and may include up to 22 visits.

Interventions

DRUGTirzepatide

Administered SC

DRUGInsulin Degludec

Administered SC

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Participants must: * Have been diagnosed with type 2 diabetes mellitus (T2DM) * Have HbA1c between ≥7.0% and ≤10.5% * Be on stable treatment with unchanged dose of metformin or metformin plus an SGLT-2 inhibitor for at least 3 months before screening * Be of stable weight (± 5%) for at least 3 months before screening * Have a BMI ≥25 kilograms per meter squared (kg/m2) at screening

Exclusion criteria

* Participants must not: * 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 acute or chronic hepatitis, signs and symptoms of any other liver disease, or blood alanine transaminase (ALT) enzyme level \>3.0 times the upper limit of normal (ULN) for the reference range, as determined by the central laboratory. Participants with nonalcoholic fatty liver disease (NAFLD) are eligible for participation in this trial only if their ALT level is ≤3.0 the ULN for the reference range * Have an estimated glomerular filtration rate \<45 mL/minute/1.73 m2 (or lower than the country specific threshold for using the protocol required dose of metformin per local label) * 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 any other diabetes medicines other than metformin, or metformin plus an SGLT-2 inhibitor during the last 3 months * 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) (10 mg and 15 mg)Baseline, Week 52HbA1c 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 covariates Baseline + Pooled Country + Baseline Oral Antihyperglycemic Medication (OAM) Use (Metformin (Met), Met plus SGLT-2i) + Treatment + Time + Treatment\*Time (Type III sum of squares).

Secondary

MeasureTime frameDescription
Change From Baseline in Body WeightBaseline, Week 52LS mean was determined by MMRM model with Baseline + Pooled Country + Baseline OAM Use (Met, Met plus SGLT-2i) + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Treatment + Time + Treatment\*Time (Type III sum of squares) as covariates.
Change From Baseline in Fasting Serum GlucoseBaseline, Week 52LS mean was determined by MMRM model with variables Baseline + Pooled Country + Baseline OAM Use (Met, Met plus SGLT-2i) + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Treatment + Time + Treatment\*Time (Type III sum of squares).
Percentage of Participants Achieving an HbA1c Target Value of <7%Week 52Hemoglobin A1c (HbA1c) is the glycosylated fraction of hemoglobin A. HbA1c is measured to identify average plasma glucose concentration over prolonged periods of time. Imputed data includes observed value and imputed value if endpoint measure is missing. Missing endpoint measures are imputed by predictions from an MMRM analysis model using observed data in the efficacy analysis set and adjusted for Baseline Value, Pooled Country, Baseline OAM Use (Met, Met plus SGLT-2i), Treatment, Visit and Visit\*Treatment.
Change From Baseline in HbA1c (5 mg)Baseline, Week 52HbA1c 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 covariates Baseline + Pooled Country + Baseline OAM Use (Met, Met plus SGLT-2i) + Treatment + Time + Treatment\*Time (Type III sum of squares).
Percentage of Participants Who Achieved Weight Loss ≥5%Week 52Percentage of Participants who Achieved Weight Loss ≥5%
Diabetes Treatment Satisfaction as Measured by the Diabetes Treatment Satisfaction Questionnaire, Change Version (DTSQc) Hyperglycemia, Hypoglycemia and Treatment Satisfaction ScoreWeek 52DTSQc, an 8-item questionnaire, assesses relative change in treatment satisfaction perceived frequency of hyperglycemia, and perceived frequency of hypoglycemia from baseline to week 52 or early termination.The treatment satisfaction score ranges from -18 to 18 where the higher the score the greater the improvement in satisfaction with treatment. The lower the score the greater the deterioration in satisfaction with treatment. The hyperglycemia and hypoglycemia scores range from -3 to 3 where negative scores indicate fewer problems with blood glucose levels and positive scores indicate more problems than before. LS mean was determined by ANCOVA model for endpoint measures: Variable = Baseline DTSQs + Pooled Country + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Baseline OAM Use (Met, Met plus SGLT-2i) + Treatment (Type III sum of squares).
Rate of Hypoglycemia With Blood Glucose <54 Milligram/Deciliter (mg/dL) [<3.0 (Millimole/Liter (mmol/L))] or Severe HypoglycemiaBaseline through Safety Follow-Up (Up to Week 56)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 OAM Use (Met, Met plus SGLT-2i) + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Treatment, with log (exposure in days/365.25) as an offset variable.
Mean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) ValuesBaseline, Week 52The 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. LS mean was determined by mixed-model repeated measures (MMRM) model with variables Baseline + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Pooled Country + Baseline OAM Use (Met, Met plus SGLT-2i) + Treatment + Time + Treatment\*Time (Type III sum of squares).

Countries

Argentina, Austria, Greece, Hungary, Italy, Poland, Puerto Rico, Romania, South Korea, Spain, Taiwan, Ukraine, United States

Participant flow

Participants by arm

ArmCount
5 mg Tirzepatide
5 milligrams (mg) tirzepatide administered subcutaneously (SC) once a week.
359
10 mg Tirzepatide
10 mg tirzepatide administered SC once a week.
361
15 mg Tirzepatide
15 mg tirzepatide administered SC once a week SC.
359
Insulin Degludec
Insulin degludec administered SC once a day. Doses were individualized and titrated according to protocol-defined targets. The starting dose of insulin degludec was 10 IU/day ideally at bedtime, titrated to a fasting blood glucose (FBG) \<90 milligram per Deciliter (mg/dL), following a treat-to-target (TTT) algorithm based on the last 3 FBG values.
365
Total1,444

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event5731
Overall StudyDeath1211
Overall StudyLost to Follow-up8955
Overall StudyPersonal Reason2313
Overall StudyPhysician Decision0222
Overall StudyProtocol Violation2000
Overall StudyWithdrawal by Subject817722

Baseline characteristics

Characteristic5 mg Tirzepatide10 mg Tirzepatide15 mg TirzepatideInsulin DegludecTotal
Age, Continuous57.20 years
STANDARD_DEVIATION 10.13
57.40 years
STANDARD_DEVIATION 9.66
57.50 years
STANDARD_DEVIATION 10.24
57.50 years
STANDARD_DEVIATION 10.08
57.40 years
STANDARD_DEVIATION 10.02
Ethnicity (NIH/OMB)
Hispanic or Latino
109 Participants108 Participants96 Participants108 Participants421 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
247 Participants253 Participants259 Participants256 Participants1015 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
3 Participants0 Participants4 Participants1 Participants8 Participants
Hemoglobin A1c8.17 Percentage of HbA1c
STANDARD_DEVIATION 0.89
8.18 Percentage of HbA1c
STANDARD_DEVIATION 0.89
8.21 Percentage of HbA1c
STANDARD_DEVIATION 0.94
8.12 Percentage of HbA1c
STANDARD_DEVIATION 0.94
8.17 Percentage of HbA1c
STANDARD_DEVIATION 0.91
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants1 Participants1 Participants2 Participants4 Participants
Race (NIH/OMB)
Asian
20 Participants19 Participants20 Participants19 Participants78 Participants
Race (NIH/OMB)
Black or African American
13 Participants12 Participants8 Participants11 Participants44 Participants
Race (NIH/OMB)
More than one race
1 Participants0 Participants1 Participants0 Participants2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants0 Participants2 Participants1 Participants4 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
324 Participants329 Participants327 Participants332 Participants1312 Participants
Region of Enrollment
Argentina
57 Participants54 Participants56 Participants57 Participants224 Participants
Region of Enrollment
Austria
7 Participants8 Participants4 Participants8 Participants27 Participants
Region of Enrollment
Greece
33 Participants35 Participants35 Participants34 Participants137 Participants
Region of Enrollment
Hungary
36 Participants37 Participants37 Participants37 Participants147 Participants
Region of Enrollment
Italy
6 Participants8 Participants8 Participants8 Participants30 Participants
Region of Enrollment
Poland
33 Participants33 Participants33 Participants33 Participants132 Participants
Region of Enrollment
Puerto Rico
8 Participants7 Participants11 Participants9 Participants35 Participants
Region of Enrollment
Romania
54 Participants54 Participants53 Participants53 Participants214 Participants
Region of Enrollment
South Korea
9 Participants10 Participants8 Participants9 Participants36 Participants
Region of Enrollment
Spain
21 Participants21 Participants22 Participants22 Participants86 Participants
Region of Enrollment
Taiwan
9 Participants8 Participants10 Participants9 Participants36 Participants
Region of Enrollment
Ukraine
11 Participants11 Participants12 Participants11 Participants45 Participants
Region of Enrollment
United States
75 Participants75 Participants70 Participants75 Participants295 Participants
Sex: Female, Male
Female
158 Participants165 Participants165 Participants148 Participants636 Participants
Sex: Female, Male
Male
201 Participants196 Participants194 Participants217 Participants808 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
1 / 3582 / 3601 / 3591 / 360
other
Total, other adverse events
124 / 358157 / 360179 / 35966 / 360
serious
Total, serious adverse events
29 / 35820 / 36026 / 35922 / 360

Outcome results

Primary

Change From Baseline in Hemoglobin A1c (HbA1c) (10 mg and 15 mg)

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 covariates Baseline + Pooled Country + Baseline Oral Antihyperglycemic Medication (OAM) Use (Metformin (Met), Met plus SGLT-2i) + Treatment + Time + Treatment\*Time (Type III sum of squares).

Time frame: Baseline, Week 52

Population: All randomized participants who received at least one dose of study drug and had a baseline and at least 1 post-baseline value, excluding participants discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or stopping study drug (last dose date +7 days)

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
10 mg TirzepatideChange From Baseline in Hemoglobin A1c (HbA1c) (10 mg and 15 mg)-2.20 Percentage of HbA1cStandard Error 0.051
15 mg TirzepatideChange From Baseline in Hemoglobin A1c (HbA1c) (10 mg and 15 mg)-2.37 Percentage of HbA1cStandard Error 0.05
Insulin DegludecChange From Baseline in Hemoglobin A1c (HbA1c) (10 mg and 15 mg)-1.34 Percentage of HbA1cStandard Error 0.049
p-value: <0.00195% CI: [-1, -0.72]Mixed Models Analysis
p-value: <0.00195% CI: [-1.17, -0.9]Mixed Models Analysis
Secondary

Change From Baseline in Body Weight

LS mean was determined by MMRM model with Baseline + Pooled Country + Baseline OAM Use (Met, Met plus SGLT-2i) + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Treatment + Time + Treatment\*Time (Type III sum of squares) as covariates.

Time frame: Baseline, Week 52

Population: All randomized participants who received at least one dose of study drug and had a baseline and at least 1 post-baseline value, excluding participants discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or stopping study drug (last dose date +7 days)

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
10 mg TirzepatideChange From Baseline in Body Weight-7.5 Kilograms (kg)Standard Error 0.37
15 mg TirzepatideChange From Baseline in Body Weight-10.7 Kilograms (kg)Standard Error 0.37
Insulin DegludecChange From Baseline in Body Weight-12.9 Kilograms (kg)Standard Error 0.37
Insulin DegludecChange From Baseline in Body Weight2.3 Kilograms (kg)Standard Error 0.37
p-value: <0.00195% CI: [-10.8, -8.8]Mixed Models Analysis
p-value: <0.00195% CI: [-14, -11.9]Mixed Models Analysis
p-value: <0.00195% CI: [-16.2, -14.2]Mixed Models Analysis
Secondary

Change From Baseline in Fasting Serum Glucose

LS mean was determined by MMRM model with variables Baseline + Pooled Country + Baseline OAM Use (Met, Met plus SGLT-2i) + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Treatment + Time + Treatment\*Time (Type III sum of squares).

Time frame: Baseline, Week 52

Population: All randomized participants who received at least one dose of study drug and had a baseline and at least 1 post-baseline value, excluding participants discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or stopping study drug (last dose date +7 days)

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
10 mg TirzepatideChange From Baseline in Fasting Serum Glucose-48.2 milligram per Deciliter (mg/dL)Standard Error 1.82
15 mg TirzepatideChange From Baseline in Fasting Serum Glucose-54.8 milligram per Deciliter (mg/dL)Standard Error 1.86
Insulin DegludecChange From Baseline in Fasting Serum Glucose-59.2 milligram per Deciliter (mg/dL)Standard Error 1.85
Insulin DegludecChange From Baseline in Fasting Serum Glucose-55.7 milligram per Deciliter (mg/dL)Standard Error 1.81
p-value: 0.00495% CI: [2.4, 12.5]Mixed Models Analysis
p-value: 0.75195% CI: [-4.3, 5.9]Mixed Models Analysis
p-value: 0.16895% CI: [-8.7, 1.5]Mixed Models Analysis
Secondary

Change From Baseline in HbA1c (5 mg)

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 covariates Baseline + Pooled Country + Baseline OAM Use (Met, Met plus SGLT-2i) + Treatment + Time + Treatment\*Time (Type III sum of squares).

Time frame: Baseline, Week 52

Population: All randomized participants who received at least one dose of study drug and had a baseline and at least 1 post-baseline value, excluding participants discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or stopping study drug (last dose date +7 days)

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
10 mg TirzepatideChange From Baseline in HbA1c (5 mg)-1.93 Percentage of HbA1cStandard Error 0.05
15 mg TirzepatideChange From Baseline in HbA1c (5 mg)-1.34 Percentage of HbA1cStandard Error 0.049
p-value: <0.00195% CI: [-0.73, -0.45]Mixed Models Analysis
Secondary

Diabetes Treatment Satisfaction as Measured by the Diabetes Treatment Satisfaction Questionnaire, Change Version (DTSQc) Hyperglycemia, Hypoglycemia and Treatment Satisfaction Score

DTSQc, an 8-item questionnaire, assesses relative change in treatment satisfaction perceived frequency of hyperglycemia, and perceived frequency of hypoglycemia from baseline to week 52 or early termination.The treatment satisfaction score ranges from -18 to 18 where the higher the score the greater the improvement in satisfaction with treatment. The lower the score the greater the deterioration in satisfaction with treatment. The hyperglycemia and hypoglycemia scores range from -3 to 3 where negative scores indicate fewer problems with blood glucose levels and positive scores indicate more problems than before. LS mean was determined by ANCOVA model for endpoint measures: Variable = Baseline DTSQs + Pooled Country + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Baseline OAM Use (Met, Met plus SGLT-2i) + Treatment (Type III sum of squares).

Time frame: Week 52

Population: All randomized participants who received at least one dose of study drug and had a baseline and at least 1 post-baseline value, excluding participants discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or stopping study drug (last dose date +7 days)

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
10 mg TirzepatideDiabetes Treatment Satisfaction as Measured by the Diabetes Treatment Satisfaction Questionnaire, Change Version (DTSQc) Hyperglycemia, Hypoglycemia and Treatment Satisfaction ScoreTreatment Satisfaction Score15.6 units on a scaleStandard Error 0.27
10 mg TirzepatideDiabetes Treatment Satisfaction as Measured by the Diabetes Treatment Satisfaction Questionnaire, Change Version (DTSQc) Hyperglycemia, Hypoglycemia and Treatment Satisfaction ScoreHyperglycemia-1.4 units on a scaleStandard Error 0.11
10 mg TirzepatideDiabetes Treatment Satisfaction as Measured by the Diabetes Treatment Satisfaction Questionnaire, Change Version (DTSQc) Hyperglycemia, Hypoglycemia and Treatment Satisfaction ScoreHypoglycemia-1.1 units on a scaleStandard Error 0.12
15 mg TirzepatideDiabetes Treatment Satisfaction as Measured by the Diabetes Treatment Satisfaction Questionnaire, Change Version (DTSQc) Hyperglycemia, Hypoglycemia and Treatment Satisfaction ScoreHyperglycemia-1.4 units on a scaleStandard Error 0.11
15 mg TirzepatideDiabetes Treatment Satisfaction as Measured by the Diabetes Treatment Satisfaction Questionnaire, Change Version (DTSQc) Hyperglycemia, Hypoglycemia and Treatment Satisfaction ScoreHypoglycemia-0.9 units on a scaleStandard Error 0.12
15 mg TirzepatideDiabetes Treatment Satisfaction as Measured by the Diabetes Treatment Satisfaction Questionnaire, Change Version (DTSQc) Hyperglycemia, Hypoglycemia and Treatment Satisfaction ScoreTreatment Satisfaction Score15.5 units on a scaleStandard Error 0.28
Insulin DegludecDiabetes Treatment Satisfaction as Measured by the Diabetes Treatment Satisfaction Questionnaire, Change Version (DTSQc) Hyperglycemia, Hypoglycemia and Treatment Satisfaction ScoreHypoglycemia-1.0 units on a scaleStandard Error 0.12
Insulin DegludecDiabetes Treatment Satisfaction as Measured by the Diabetes Treatment Satisfaction Questionnaire, Change Version (DTSQc) Hyperglycemia, Hypoglycemia and Treatment Satisfaction ScoreHyperglycemia-1.6 units on a scaleStandard Error 0.11
Insulin DegludecDiabetes Treatment Satisfaction as Measured by the Diabetes Treatment Satisfaction Questionnaire, Change Version (DTSQc) Hyperglycemia, Hypoglycemia and Treatment Satisfaction ScoreTreatment Satisfaction Score15.6 units on a scaleStandard Error 0.28
Insulin DegludecDiabetes Treatment Satisfaction as Measured by the Diabetes Treatment Satisfaction Questionnaire, Change Version (DTSQc) Hyperglycemia, Hypoglycemia and Treatment Satisfaction ScoreHyperglycemia-1.1 units on a scaleStandard Error 0.11
Insulin DegludecDiabetes Treatment Satisfaction as Measured by the Diabetes Treatment Satisfaction Questionnaire, Change Version (DTSQc) Hyperglycemia, Hypoglycemia and Treatment Satisfaction ScoreTreatment Satisfaction Score12.6 units on a scaleStandard Error 0.27
Insulin DegludecDiabetes Treatment Satisfaction as Measured by the Diabetes Treatment Satisfaction Questionnaire, Change Version (DTSQc) Hyperglycemia, Hypoglycemia and Treatment Satisfaction ScoreHypoglycemia-0.7 units on a scaleStandard Error 0.12
Comparison: Hyperglycemiap-value: 0.09695% CI: [-0.57, 0.05]ANCOVA
Comparison: Hyperglycemiap-value: 0.11395% CI: [-0.57, 0.06]ANCOVA
Comparison: Hyperglycemiap-value: 0.00395% CI: [-0.78, -0.16]ANCOVA
Comparison: Hypoglycemiap-value: 0.01495% CI: [-0.74, -0.08]ANCOVA
Comparison: Hypoglycemiap-value: 0.2895% CI: [-0.51, 0.15]ANCOVA
Comparison: Hypoglycemiap-value: 0.12995% CI: [-0.59, 0.07]ANCOVA
Comparison: Treatment Satisfaction Scorep-value: <0.00195% CI: [2.26, 3.75]ANCOVA
Comparison: Treatment Satisfaction Scorep-value: <0.00195% CI: [2.15, 3.65]ANCOVA
Comparison: Treatment Satisfaction Scorep-value: <0.00195% CI: [2.24, 3.74]ANCOVA
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. LS mean was determined by mixed-model repeated measures (MMRM) model with variables Baseline + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Pooled Country + Baseline OAM Use (Met, Met plus SGLT-2i) + Treatment + Time + Treatment\*Time (Type III sum of squares).

Time frame: Baseline, Week 52

Population: All randomized participants who received at least one dose of study drug and had a baseline and at least 1 post-baseline value, excluding participants discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or stopping study drug (last dose date +7 days)

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
10 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) Values-52.6 mg/dLStandard Error 1.2
15 mg TirzepatideMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) Values-59.7 mg/dLStandard Error 1.22
Insulin DegludecMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) Values-60.6 mg/dLStandard Error 1.2
Insulin DegludecMean Change From Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) Values-48.0 mg/dLStandard Error 1.18
Secondary

Percentage of Participants Achieving an 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. Imputed data includes observed value and imputed value if endpoint measure is missing. Missing endpoint measures are imputed by predictions from an MMRM analysis model using observed data in the efficacy analysis set and adjusted for Baseline Value, Pooled Country, Baseline OAM Use (Met, Met plus SGLT-2i), Treatment, Visit and Visit\*Treatment.

Time frame: Week 52

Population: All randomized participants who received at least one dose of study drug and had a baseline and at least 1 post-baseline value, excluding participants discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or stopping study drug (last dose date +7 days)

ArmMeasureValue (NUMBER)
10 mg TirzepatidePercentage of Participants Achieving an HbA1c Target Value of <7%82.44 percentage of participants
15 mg TirzepatidePercentage of Participants Achieving an HbA1c Target Value of <7%89.71 percentage of participants
Insulin DegludecPercentage of Participants Achieving an HbA1c Target Value of <7%92.63 percentage of participants
Insulin DegludecPercentage of Participants Achieving an HbA1c Target Value of <7%61.25 percentage of participants
p-value: <0.00195% CI: [2.38, 5.01]Regression, Logistic
p-value: <0.00195% CI: [4.55, 10.84]Regression, Logistic
p-value: <0.00195% CI: [6.65, 17.48]Regression, Logistic
Secondary

Percentage of Participants Who Achieved Weight Loss ≥5%

Percentage of Participants who Achieved Weight Loss ≥5%

Time frame: Week 52

Population: All randomized participants who received at least one dose of study drug and had a baseline and at least 1 post-baseline value, excluding participants discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or stopping study drug (last dose date +7 days)

ArmMeasureValue (NUMBER)
10 mg TirzepatidePercentage of Participants Who Achieved Weight Loss ≥5%66.01 percentage of participants
15 mg TirzepatidePercentage of Participants Who Achieved Weight Loss ≥5%83.71 percentage of participants
Insulin DegludecPercentage of Participants Who Achieved Weight Loss ≥5%87.82 percentage of participants
Insulin DegludecPercentage of Participants Who Achieved Weight Loss ≥5%6.27 percentage of participants
p-value: <0.00195% CI: [18.35, 48.35]Regression, Logistic
p-value: <0.00195% CI: [47.56, 134.17]Regression, Logistic
p-value: <0.00195% CI: [64.73, 189.55]Regression, Logistic
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 OAM Use (Met, Met plus SGLT-2i) + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Treatment, with log (exposure in days/365.25) as an offset variable.

Time frame: Baseline through Safety Follow-Up (Up to Week 56)

Population: All randomized participants who received at least one dose of study drug and had a baseline and at least 1 post-baseline value, excluding participants discontinuing study drug due to inadvertent enrollment and data after initiating rescue antihyperglycemic medication or stopping study drug (last dose date +7 days)

ArmMeasureValue (MEAN)Dispersion
10 mg TirzepatideRate of Hypoglycemia With Blood Glucose <54 Milligram/Deciliter (mg/dL) [<3.0 (Millimole/Liter (mmol/L))] or Severe Hypoglycemia0.0137 Episodes/participant/365.25 daysStandard Error 0.0056
15 mg TirzepatideRate of Hypoglycemia With Blood Glucose <54 Milligram/Deciliter (mg/dL) [<3.0 (Millimole/Liter (mmol/L))] or Severe Hypoglycemia0.0108 Episodes/participant/365.25 daysStandard Error 0.0044
Insulin DegludecRate of Hypoglycemia With Blood Glucose <54 Milligram/Deciliter (mg/dL) [<3.0 (Millimole/Liter (mmol/L))] or Severe Hypoglycemia0.0275 Episodes/participant/365.25 daysStandard Error 0.0143
Insulin DegludecRate of Hypoglycemia With Blood Glucose <54 Milligram/Deciliter (mg/dL) [<3.0 (Millimole/Liter (mmol/L))] or Severe Hypoglycemia0.1020 Episodes/participant/365.25 daysStandard Error 0.0568

Source: ClinicalTrials.gov · Data processed: Aug 13, 2026