A Study of Tirzepatide (LY3298176) Versus Insulin Lispro (U100) in Participants With Type 2 Diabetes Inadequately Controlled on Insulin Glargine (U100) With or Without Metformin (SURPASS-6)
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ClinicalTrials.gov Identifier: NCT04537923 |
Recruitment Status :
Completed
First Posted : September 3, 2020
Last Update Posted : November 23, 2022
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Type 2 Diabetes | Drug: Tirzepatide Drug: Insulin Lispro (U100) Drug: Insulin Glargine (U100) | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 1428 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Randomized, Phase 3, Open-label Trial Comparing the Effect of the Addition of Tirzepatide Once Weekly Versus Insulin Lispro (U100) Three Times Daily in Participants With Type 2 Diabetes Inadequately Controlled on Insulin Glargine (U100) With or Without Metformin (SURPASS-6) |
Actual Study Start Date : | October 19, 2020 |
Actual Primary Completion Date : | October 11, 2022 |
Actual Study Completion Date : | November 1, 2022 |

Arm | Intervention/treatment |
---|---|
Experimental: 5 mg Tirzepatide
5 milligrams (mg) tirzepatide administered subcutaneously (SC) once a week with insulin glargine (U100) administered SC.
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Drug: Tirzepatide
Administered SC
Other Name: LY3298176 Drug: Insulin Glargine (U100) Administered SC |
Experimental: 10 mg Tirzepatide
10 mg tirzepatide administered SC once a week with insulin glargine (U100) administered SC.
|
Drug: Tirzepatide
Administered SC
Other Name: LY3298176 Drug: Insulin Glargine (U100) Administered SC |
Experimental: 15 mg Tirzepatide
15 mg tirzepatide administered SC once a week with insulin glargine (U100) administered SC.
|
Drug: Tirzepatide
Administered SC
Other Name: LY3298176 Drug: Insulin Glargine (U100) Administered SC |
Active Comparator: Insulin Lispro (U100)
Insulin lispro (U100) administered SC three times a day with insulin glargine (U100) administered SC.
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Drug: Insulin Lispro (U100)
Administered SC
Other Name: LY275585 Drug: Insulin Glargine (U100) Administered SC |
- Change from Baseline in Hemoglobin A1c (HbA1c) (Pooled Doses) [ Time Frame: Baseline, Week 52 ]Change from Baseline in HbA1c
- Change from Baseline in HbA1c (Individual Doses) [ Time Frame: Baseline, Week 52 ]Change from Baseline in HbA1c
- Percentage of Participants with HbA1c Target Values <7.0% [ Time Frame: Week 52 ]Percentage of Participants with HbA1c Target Values <7.0%
- Change from Baseline in Body Weight [ Time Frame: Baseline, Week 52 ]Change from Baseline in Body Weight
- Change from Baseline in Fasting Serum Glucose [ Time Frame: Baseline, Week 52 ]Change from Baseline in Fasting Serum Glucose
- Mean Change from Baseline in Daily Average 7-Point Self-Monitored Blood Glucose (SMBG) Values [ Time Frame: Baseline, Week 52 ]Mean Change from Baseline in Daily Average 7-Point SMBG Values
- Percentage of Participants who Achieved HbA1c Target Value of <7.0% without Hypoglycemia [ Time Frame: Week 52 ]Percentage of Participants who Achieved HbA1c Target Value of <7.0% without Hypoglycemia
- Percentage of Participants who Achieved Weight Loss ≥5% [ Time Frame: Week 52 ]Percentage of Participants who Achieved Weight Loss ≥5%
- Change from Baseline in 36-Item Short Form Health Survey (SF-36) Physical Component Summary (PCS) Score [ Time Frame: Baseline, Week 52 ]Change from Baseline in SF-36 PCS Score
- Change from Baseline in 36-Item SF-36 Mental Component Summary (MCS) Score [ Time Frame: Baseline, Week 52 ]Change from Baseline in SF-36 MCS Score

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Have been diagnosed with type 2 diabetes mellitus (T2DM)
- Have HbA1c between ≥7.5% and ≤11%
- Have been treated for at least 90 days prior to day of screening with once or twice daily basal insulin with or without stable dose of metformin ≥1500 mg/day and up to maximum approved dose per country specific approved label, sulfonylureas or dipeptidyl peptidase 4 inhibitors
- Be of stable weight (± 5%) for at least 90 days
- Have a BMI ≥23 kilograms per meter squared (kg/m²) and ≤45 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 macular edema or nonproliferative diabetic retinopathy requiring immediate or urgent treatment
- Have disorders associated with slowed emptying of the stomach, have had any stomach surgeries for the purpose of weight loss, or are chronically taking drugs that directly affect gastrointestinal motility
- 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
- Have an estimated glomerular filtration rate <30 mL/minute/1.73 m² [for participants on metformin, estimated glomerular filtration rate <45 mL/min/1.73 m2 (or lower than the country-specific threshold for using the protocol-required dose of metformin per local label)]

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04537923

Study Director: | Call 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 9 AM - 5 PM Eastern time (UTC/GMT - 5 hours, EST) | Eli Lilly and Company |
Responsible Party: | Eli Lilly and Company |
ClinicalTrials.gov Identifier: | NCT04537923 |
Other Study ID Numbers: |
17204 I8F-MC-GPHD ( Other Identifier: Eli Lilly and Company ) 2020-000284-23 ( EudraCT Number ) |
First Posted: | September 3, 2020 Key Record Dates |
Last Update Posted: | November 23, 2022 |
Last Verified: | November 15, 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | Anonymized individual patient level data will be provided in a secure access environment upon approval of a research proposal and a signed data sharing agreement. |
Supporting Materials: |
Study Protocol Statistical Analysis Plan (SAP) Clinical Study Report (CSR) |
Time Frame: | Data are available 6 months after the primary publication and approval of the indication studied in the US and EU, whichever is later. Data will be indefinitely available for requesting. |
Access Criteria: | A research proposal must be approved by an independent review panel and researchers must sign a data sharing agreement. |
URL: | https://vivli.org/ |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
glucose-dependent insulinotropic polypeptide (GIP) glucagon-like peptide-1 (GLP-1) GIP/GLP-1 dual receptor agonist T2DM |
Diabetes Mellitus Diabetes Mellitus, Type 2 Glucose Metabolism Disorders Metabolic Diseases Endocrine System Diseases Insulin Insulin, Globin Zinc Insulin Glargine |
Insulin Lispro Tirzepatide Hypoglycemic Agents Physiological Effects of Drugs Incretins Hormones Hormones, Hormone Substitutes, and Hormone Antagonists |