A Study of Tirzepatide (LY3298176) Compared to Dulaglutide in Participants With Type 2 Diabetes
- Registration Number
- NCT03861052
- Lead Sponsor
- Eli Lilly and Company
- Brief Summary
The reason for this study is to see if the study drug tirzepatide (LY3298176) is effective and safe compared to dulaglutide in participants with type 2 diabetes in Japan.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 636
Participant must:
-
Have been diagnosed with type 2 diabetes mellitus based on the World Health Organization classification before the screening visit.
-
Have HbA1c meeting the following criteria, as determined by the central laboratory at screening and baseline:
- for participants who are oral antihyperglycemic medication (OAM)-naïve at screening, ≥7.0% to ≤10.0% at both screening and baseline.
- for participants who have been taking OAM monotherapy at screening, ≥6.5% to ≤9.0% at screening, and ≥7.0% to ≤10.0% at baseline.
-
Have body mass index (BMI) of ≥23 kilograms per meter squared at screening.
-
Be of stable weight (±5%) during 3 months preceding screening; and agree to not initiate an intensive diet and/or exercise program during the study with the intent of reducing body weight other than the lifestyle and dietary measures for diabetes treatment.
Participant 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 immediate or urgent 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 there ALT level is ≤3.0 the ULN for the reference range.
- 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.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description 5 mg Tirzepatide Tirzepatide Participants received 5 milligram (mg) tirzepatide administered subcutaneously (SC) once weekly for 52 weeks. 10 mg Tirzepatide Tirzepatide Participants received 10 mg tirzepatide administered SC once weekly for 52 weeks. 15 mg Tirzepatide Tirzepatide Participants received 15 mg tirzepatide administered SC once weekly for 52 weeks. 0.75 mg Dulaglutide Dulaglutide Participants received 0.75 mg dulaglutide administered SC once weekly for 52 weeks.
- Primary Outcome Measures
Name Time Method Change From Baseline in Hemoglobin A1c (HbA1c) Baseline, Week 52 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 for post-baseline measures: Variable = Baseline + Baseline BMI Group (\<25 or \>=25 kg/m\^2) + Washout of Antidiabetic Medication + Treatment + Time + Treatment\*Time (Type III sum of squares).
- Secondary Outcome Measures
Name Time Method Percentage of Participants With HbA1c of <7.0% Week 52 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 Glucose Baseline, Week 52 Fasting serum glucose (FSG) is a test to determine sugar levels in serum sample after an overnight fast. LS mean was determined by MMRM model for post-baseline measures: Variable = Baseline + Baseline BMI Group (\<25 or \>=25 kg/m\^2) + Washout of Antidiabetic Medication + Treatment + Time + Treatment\*Time (Type III sum of squares).
Change From Baseline in Average 7-Point Self-Monitored Blood Glucose (SMBG) Values Baseline, Week 52 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 analysis of covariance (ANCOVA) model for with Baseline + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Baseline BMI Group (\<25 or \>=25 kg/m\^2) + Washout of Antidiabetic Medication + Treatment (Type III sum of squares) as variables.
Change From Baseline in Body Weight Baseline, Week 52 Change from baseline in body weight. LS mean was determined by MMRM model for post-baseline measures: Variable = Baseline + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Washout of Antidiabetic Medication + Treatment + Time + Treatment\*Time (Type III sum of squares).
Percentage of Participants Who Achieve Weight Loss ≥5% From Baseline Week 52 Percentage of participants who achieve weight loss ≥5% from baseline.
Change From Baseline in Fasting Insulin Baseline, Week 52 Fasting Insulin is a test used to measure the amount of insulin in the body. LS mean was determined by MMRM model for post-baseline measures with log (Actual Measurement) = log (Baseline) + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Baseline BMI Group (\<25 or \>=25 kg/m\^2) + Washout of Antidiabetic Medication + Treatment + Time + Treatment\*Time (Type III sum of squares) as variables.
Change From Baseline in Fasting C-Peptide Baseline, Week 52 Fasting C-peptide is a test used to measure the amount of C-peptide in the body. A high level of C-peptide can mean that body is making too much insulin. LS mean was determined by MMRM model for post-baseline measures: log (Actual Measurement) = log (Baseline) + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Baseline BMI Group (\<25 or \>=25 kg/m\^2) + Washout of Antidiabetic Medication + Treatment + Time + Treatment\*Time (Type III sum of squares).
Change From Baseline in Homeostasis Model Assessment B (HOMA-2B, Insulin) Baseline, Week 52 HOMA-2B is an estimated steady state beta cell function based on updated HOMA2 model. The HOMA2 model estimates steady state pancreatic beta cell function (%B) as a percentage of a normal reference population using simultaneously measured fasting plasma glucose and fasting insulin. LS mean was determined by MMRM model for post-baseline measures: log(Actual Measurement/Baseline) = log(Baseline) + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Baseline BMI Group (\<25 or \>=25 kg/m\^2) + Washout of Antidiabetic Medication + Treatment + Time + Treatment\*Time (Type III sum of squares).
Change From Baseline in HOMA-2S (Insluin) Baseline, Week 52 HOMA2-S is an estimated insulin sensitivity based on updated HOMA2 model. The HOMA2 model is a computer model that estimates insulin sensitivity (%S) as percentages of a normal reference population using simultaneously measured fasting plasma glucose and fasting insulin. LS mean was determined by MMRM model for post-baseline measures: log(Actual Measurement) = log(Baseline) + Baseline HbA1c Group (\<=8.5%, \>8.5%) + Baseline BMI Group (\<25 or \>=25 kg/m\^2) + Washout of Antidiabetic Medication + Treatment + Time + Treatment\*Time (Type III sum of squares).
Rate of Hypoglycemia With Glucose < 54 mg/dL or Severe Hypoglycemia Baseline through Week 52 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 for post-baseline comparisons between treatment and control group: number of episodes = baseline hypoglycemia incidence + baseline BMI Group (\<25 or \>=25 kg/m\^2) + washout of antidiabetic medication + baseline hemoglobin A1C (%) + treatment, with log (exposure in days/365.25) as an offset variable.
Number of Participants With Anti-Tirzepatide Antibodies Baseline through Week 52 Number of participants with anti-tirzepatide antibodies. A participant is treatment emergent (TE) anti-drug antibody (ADA) evaluable if there is at least one non-missing test result for tirzepatide ADA for each of the baseline period and the postbaseline period. All percentages are relative to the total number of TE ADA evaluable participants in each treatment group. A TE ADA evaluable participant is considered to be TE ADA+ if the participant has at least one postbaseline titer that is a 4-fold or greater increase in titer from baseline measurement.
Trial Locations
- Locations (46)
Medical Corporation Chiseikai Tokyo Center Clinic
🇯🇵Chuo-ku, Tokyo, Japan
Ikebukuro Metropolitan Clinic
🇯🇵Toshima-ku, Tokyo, Japan
IHL Shinagawa East One Medical Clinic
🇯🇵Minato-ku, Tokyo, Japan
Shinjuku Research Park Clinic
🇯🇵Shinjuku, Tokyo, Japan
Medical Corporation Heishinkai OCROM Clinic
🇯🇵Suita-shi, Osaka, Japan
HDC Atlas Clinic
🇯🇵Chiyoda, Tokyo, Japan
Nihonbashi Sakura Clinic
🇯🇵Chuo-ku, Tokyo, Japan
Meiwa Hospital
🇯🇵Chiyodaku, Tokyo, Japan
Fukuwa Clinic
🇯🇵Chuo-ku, Tokyo, Japan
Medical Corporation Heishinkai ToCROM Clinic
🇯🇵Shinjuku-ku, Tokyo, Japan
Sato Medical Clinic
🇯🇵Ootaku, Tokyo, Japan
Futata Tetsuhiro Clinic
🇯🇵Fukuoka, Japan
Shinei Clinic
🇯🇵Suginami, Tokyo, Japan
JR Hiroshima Hospital
🇯🇵Hiroshima, Japan
Kitada Clinic
🇯🇵Osaka, Japan
Yuri Ono Clinic
🇯🇵Sapporo, Hokkaido, Japan
Kanto Rosai Hospital
🇯🇵Kawasaki, Kanagawa, Japan
Matoba Diabetes Clinic
🇯🇵Ebina, Kanagawa, Japan
H.E.C. Science Clinic
🇯🇵Yokohama, Kanagawa, Japan
Senrichuo Ekimae Clinic
🇯🇵Toyonaka, Osaka, Japan
Abe Clinic
🇯🇵Oita, Japan
AMC Nishiumeda Clinic
🇯🇵Osaka, Japan
Nanko Clinic
🇯🇵Osaka, Japan
Suruga Clinic
🇯🇵Shizuoka, Japan
Yokohama Minoru Clinic
🇯🇵Yokohama, Japan
Takatsuki Red Cross Hospital
🇯🇵Takatsuki, Osaka, Japan
Medical corporation THY Tokuyama Clinic
🇯🇵Chiba Mihama-ku, Chiba, Japan
Akaicho Clinic
🇯🇵Chiba-shi, Chiba, Japan
Seiwa Clinic
🇯🇵Adachi-ku, Tokyo, Japan
Tokyo-Eki Center-building Clinic
🇯🇵Chuo-ku, Tokyo, Japan
Hayashi Diabetes Internal Medicine Clinic
🇯🇵Chigasaki-sh, Kanagawa, Japan
Naka Memorial Clinic
🇯🇵Naka, Ibaraki, Japan
National Hospital Organization Kure Medical Center
🇯🇵Kure, Hiroshima, Japan
Hasegawa Medical Clinic
🇯🇵Chitose, Hokkaido, Japan
Watanabe Naika Clinic
🇯🇵Nishinomiya, Hyogo, Japan
Hayashi Clinic
🇯🇵Nishinomiya, Hyogo, Japan
Takai Naika Clinic
🇯🇵Kamakura, Kanagawa, Japan
Asano Clinic
🇯🇵Kawagoe, Saitama, Japan
Wakakusa Clinic
🇯🇵Shimotsuke, Tochigi, Japan
Kawaguchi General Hospital
🇯🇵Kawaguchi, Saitama, Japan
Tokyo aSBo Clinic
🇯🇵Chuo-ku, Tokyo, Japan
Asahi Life Foundation Adult Disease Research Center
🇯🇵Chuo-ku, Tokyo, Japan
Tomonaga Clinic
🇯🇵Shinjuku-ku, Tokyo, Japan
Yoshimura Clinic
🇯🇵Kumamoto, Japan
OKAYAMA Medical Center
🇯🇵Okayama, Japan
Keiseikai Kajiyama Clinic
🇯🇵Kyoto, Japan