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LY3209590

Phase 2

Type 2 Diabetes Mellitus | Small molecule | Metabolic |Eli Lilly and Company|Last Updated: Mar 24, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedACTIVE_CONTROLLEDBiomarker
Total Trials4
Total Enrollment746
FDA Designations
No designations recorded
Clinical Trials (4)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04450394A Phase 2 Study of LY3209590 in Participants With Type 2 Diabetes MellitusPHASE2 COMPLETED 278Jul 1, 2020Oct 8, 2021Nov 2, 202264 United States, Argentina +3
NCT03736785A Study of LY3209590 in Participants With Type 2 Diabetes MellitusPHASE2 COMPLETED 399Nov 15, 2018Feb 18, 2020Mar 8, 202144 United States, Mexico +1
NCT06362265A Study to Evaluate Pharmacokinetics of LY3209590 in Pediatric Participants With Type 2 Diabetes MellitusPHASE1 COMPLETED 15Oct 10, 2024Jan 2, 2026Mar 24, 202610 United States
NCT04957914A Study of LY3209590 on Low Blood Sugar in Participants With Type 2 Diabetes MellitusPHASE1 COMPLETED 54Jul 14, 2021Oct 17, 2022Nov 16, 20221 Germany
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Study Endpoints
Primary Endpoints
Change From Baseline in Hemoglobin A1c (HbA1c)
Baseline, Week 26

HbA1c is the glycosylated fraction of haemoglobin A. It is measured to identify average blood glucose concentration over prolonged periods of time. Least squares (LS) mean change from baseline was analysed by mixed model repeated measures (MMRM) model with treatment, country, Dipeptidyl peptidase IV (DPPIV) (yes/no), Sodium-glucose Cotransporter-2 (SGLT2) (yes/no), baseline body mass index (BMI) \[\<30, \>=30\]), visit, and treatment by visit interaction as fixed effects and the baseline HbA1c as a covariate.

Change From Baseline in HbA1c
Baseline, Week 32

HbA1c is the glycosylated fraction of haemoglobin A. HbA1c is measured to identify average plasma glucose concentration over prolonged periods of time. Change from baseline in HbA1c was analysed by mixed model repeated measures (MMRM) including fixed effects of treatment, stratification factors (country, BMI group \[\> 30 or ≤ 30\], sulfonylureas use at study entry), visit and treatment by visit interaction and baseline HbA1c as the covariate.

Pharmacokinetics (PK): Area Under the Plasma Concentration Versus Time Curve (AUC) of LY3209590
Predose up to 65 days post dose
PK: Maximum Observed Plasma Concentration (Cmax) of LY3209590
Predose up to 65 days post dose
Incidence of Documented Hypoglycemia
Baseline through Day 186
Secondary Endpoints
Change From Baseline in Fasting Serum Glucose
Baseline, Week 26
Rate of Documented Hypoglycemia
Baseline through Week 26
Pharmacokinetics (PK): Area Under the Concentration Time Curve (AUC) of LY3209590
Week 26
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
LY3209590 Algorithm 1 (Paper)EXPERIMENTALAlgorithm 1 is a paper-based algorithm where dose adjustments were manually determined by the investigator based on fasting glucose and hypoglycemia data. LY3209590 was provided in a 20 milligram (mg) vial of reconstitutable lyophilized powder. Participants received individualized LY3209590 loading dose based on the baseline median fasting glucose and body weight by subcutaneous (SC) injection on day 1 followed by weekly adjustments for the first 12 weeks, then every 4 weeks, of a 26-week treatment period, to achieve target fasting glucose of \<=100 milligrams per deciliter (mg/dL).
LY3209590 Algorithm 2 (Digital)EXPERIMENTALAlgorithm 2 is a computer-based algorithm to determine dose adjustments. LY3209590 was provided in a 20 mg vial of reconstitutable lyophilized powder. Participants received individualized LY3209590 loading dose based on the baseline median fasting glucose and body weight by SC injection on day 1 followed by weekly adjustments for the first 12 weeks, then every 4 weeks, of a 26-week treatment period, to achieve target fasting glucose of \<=100 mg/dL. As per protocol amendment (d) approved on 28-Oct-2020, this arm was terminated during the early enrollment phase due to technical issues with data entry.
Insulin DegludecACTIVE_COMPARATORInsulin degludec was provided as 100 units/milliliter (U/mL) in a prefilled pen. Participants received individually adjusted doses once daily by SC injection with a starting dose of 10 units, during the 26-week treatment period, to achieve target fasting blood glucose of \<=100 mg/dL.
LY3209590 Algorithm 1EXPERIMENTALParticipants received loading dose followed by weekly dose of LY3209590 based on the prior randomization basal insulin dose for a period of 32 weeks by subcutaneous (SC) injection. Dose titration was done to maintain fasting blood glucose of \<140 milligram per deciliter (mg/dL).
LY3209590 Algorithm 2EXPERIMENTALParticipants received loading dose followed by weekly dose of LY3209590 based on the prior randomization basal insulin dose for a period of 32 weeks by subcutaneous injection. Dose titration was done to maintain fasting blood glucose of \<120 mg/dL.
LY3209590EXPERIMENTALLY3209590 administered subcutaneously (SC).
Insulin Glargine (Period 1)ACTIVE_COMPARATORInsulin glargine administered subcutaneously (SC).
LY3209590 (Period 2)EXPERIMENTALLY3209590 administered SC.
Interventions
NameTypeDescription
LY3209590DRUGAdministered SC
Insulin DegludecDRUGAdministered SC
Insulin GlargineDRUGAdministered SC
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Eligibility Criteria
Age Range18 Years — 75 Years
SexALL
Healthy VolunteersNo
Study Sites64

Inclusion Criteria: * Participants must have type 2 diabetes mellitus according to the World Health Organization (WHO) criteria treated with a stable dose of metformin in combination with a stable dose of Dipeptidyl Peptidase IV (DPPIV) inhibitor and/or a Sodium-glucose co-transporter-2 (SGLT2) inh...

Countries:United StatesArgentinaGermanyPolandPuerto RicoMexico
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Recent Changes (Last 90 Days)
HIGHMay 26, 2026NCT06362265TRIAL_REMOVED: changed
LOWMay 24, 2026NCT06362265studyFirstPostDate: changed