A Study of Dose Titration of LY2189265 in Overweight Participants With Type 2 Diabetes Mellitus

Fasting blood glucose is a test to determine how much glucose (sugar) is in a blood sample after an overnight fast. Least Squares (LS) means of change were calculated using analysis of covariance (ANCOVA) adjusting for treatment, combination of oral medications, and baseline.

Glucose excursion in response to a standardized solid mixed meal test was evaluated at baseline (randomization) and at Week 16, or at early termination. Each of the 2 standardized meal tests required participants to fast starting at 2200 hours the night prior to the test. A standardized breakfast meal was provided to the participant (approximately 550 kilocalorie \[Kcal\], 103 grams \[g\] carbohydrates, 22 g protein, and 8.5 g fat) and was to be consumed within 15 minutes. Serial venous blood samples were taken at the start of the meal (fasting \[0\]) and 30, 60, 90, 120, and 180 minutes after the start of the meal. Least Squares (LS) means of change in mean glucose area under the curve excursion following a test meal were calculated adjusting for treatment, combination of oral medications, and baseline.

Change from baseline in mean daily blood glucose values were measured using self-monitored blood glucose (SMBG) data collected at the following 8 time points: pre-morning meal; 2 hours post-morning meal; pre-midday meal; 2 hours post-midday meal; pre-evening meal; 2 hours post-evening meal; bedtime; and 2:00 am. The daily mean was calculated as the average of the 8 blood glucose values collected on a particular day. Least Squares (LS) means of change from baseline of the mean of the 8 time points (Daily Mean) were calculated using analysis of covariance (ANCOVA) adjusting for treatment, combination of oral medications, and baseline.

Homeostasis Model Assessment tool (HOMA2) of β-cell function is a technique for estimating beta-cell function (HOMA2-%B) and insulin sensitivity (HOMA2-%S) using basal serum glucose, and c-peptide concentrations. A fasting blood glucose, c-peptide, and serum insulin level were drawn for purposes of this determination just prior to the mixed meal test.

Percentages of participants who achieved glycosylated hemoglobin (HbA1c) levels of \<7% or ≤6.5% were analyzed with a logistic regression model with baseline, combination of oral medications, and treatment as factors included in the model.

LS means of change from baseline were calculated using analysis of covariance (ANCOVA) adjusting for treatment, combination of oral medications, and baseline.

Mean change from baseline in waist circumference (a measure of central obesity).

Participants were asked to score nausea and dyspepsia (abdominal pain and bloating) on a scale of 0 (none) to 100 after the largest meal of the day.

Gastroparesis Cardinal Symptom Index (GCSI) is a participant-completed questionnaire designed to assess the severity of symptoms consistent with delayed gastric emptying (nausea/vomiting, abdominal bloating, and stomach fullness) at each study visit. GCSI scores ranged from 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, to 5=very severe.

A documented hypoglycemic episode is defined as an event which is associated with a measured blood glucose of ≤70 milligrams per deciliter (mg/dL) (3.9 millimoles per liter \[mmol/L\]), even if it was not associated with symptoms, signs, or treatment. A severe hypoglycemic episode is defined as an event with a measured blood glucose of \<50mg/dL. Participant reports of hypoglycemic events were collected at the beginning of each visit starting at Baseline. A summary of serious and other non-serious adverse events regardless of causality is located in the Reported Adverse Events module.

Hypoglycemic episodes are defined as an event which is associated with reported signs and/or symptoms of hypoglycemia (for example, sweating, shakiness, tachycardia, etc.) or a documented blood glucose (BG) concentration of ≤70 milligrams per deciliter (mg/dL) (3.9 millimoles per liter \[mmol/L\]), even if it was not associated with symptoms, signs, or treatment. The rate is the average number of days out of 30 that a participant reported hypoglycemia. A summary of serious and other non-serious adverse events regardless of causality is located in the Reported Adverse Events module.

Lipids include total cholesterol, low-density lipoprotein (LDL)-cholesterol, high-density lipoprotein (HDL)-cholesterol, and triglycerides.

The Perceptions about Medications - Diabetes, Short Version (PAM-D-S) questionnaire consisted of: 2 items in which respondents were asked about their satisfaction with their diabetes medication over the past week using a 6-point scale ranging from 1 "completely dissatisfied" to 6 "completely satisfied"; 10 items in which respondents were asked about the effectiveness of their diabetes medications in the past week using a 4-point scale ranging from 1 "all of the time" to 4 "none of the time"; and 15 items asking respondents to indicate the frequency of physical side effects in the past week using a 4-point scale ranging from 1 "all of the time" to 4 "none of the time." These items were exploratory items taken from a Diabetes Medicines Survey and had not been validated as a scale. The percentage of participants that rated their general health as good or better are summarized.

This purpose of this outcome measure was to validate the PAM-D-S questionnaire for future use. Please refer to Outcome Measure #14 for a description of the PAM-D-S questionnaire and results collected. A preliminary analysis indicated modifications to the questionnaire were required and further study is necessary to complete the validation. Therefore, the PAM-D-S questionnaire was not validated as a part of Study H9X-MC-GBCJ.

The population mean estimates and standard deviations were calculated for pharmacokinetic parameters (area under the concentration time curve \[AUC\] at steady state from time zero to 168 hours after study drug administration).