The purpose of this study is to determine the effect and safety of LY3209590 compared to degludec in adult participants with type 2 diabetes who are starting basal insulin for the first time. Additional participants will continue to be enrolled in a maximum extended enrollment cohort.



Eligible Ages
Over 18 Years
Eligible Genders
Accepts Healthy Volunteers

Inclusion Criteria

  • Have diagnosis of T2D according to the World Health Organization Criteria - Have an HbA1c of 7.0% - 10% inclusive, at screening - Are on a stable treatment of at least 1 antihyperglycemic medication, for at least 3 months prior to screening, and willing to continue the stable treatment for the duration of the study

Exclusion Criteria

  • Have a diagnosis of T1D, latent autoimmune diabetes, or specific type of diabetes other than T2D, for example, monogenic diabetes, diseases of the exocrine pancreas, or drug induced or chemical-induced diabetes. - Have a history of >1 episode of ketoacidosis or hyperosmolar state or coma requiring hospitalization within 6 months prior to screening. - Have had severe hypoglycemia episodes within 6 months prior to screening. - Have known hemoglobinopathy, hemolytic anemia or sickle cell anemia, or any other traits of hemoglobin abnormalities known to interfere with the measurement of HbA1c. - Have had New York Heart Association Class IV heart failure or any of these cardiovascular conditions within 3 months prior to screening - acute myocardial infarction - cerebrovascular accident (stroke), or - coronary bypass surgery. - Have had gastric bypass (bariatric) surgery, restrictive bariatric surgery, for example Lap-Band, or sleeve gastrectomy within 1 year prior to screening - Have had significant weight gain or loss within 3 months prior to screening, for example, ≥5%.

Study Design

Phase 3
Study Type
Intervention Model
Parallel Assignment
Primary Purpose
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Participants will receive LY3209590 subcutaneously (SC) once weekly.
  • Drug: LY3209590
    Administered SC
Active Comparator
Insulin Degludec
Participants will receive insulin degludec SC once daily
  • Drug: Insulin Degludec
    Administered SC

Recruiting Locations

MedStar Health Research Institute (MedStar Physician Based Research Network)
Hyattsville, Maryland 20782

More Details

Eli Lilly and Company

Study Contact

There may multiple sites in this clinical trial. 1-877-CTLILLY (1-877-285-4559) or


Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.