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LY3526318

Phase 2

Chronic Low-back Pain | Small molecule | Pain |Eli Lilly and Company|Last Updated: Oct 6, 2025

Success Probability

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment159

FDA Designations

No designations recorded

Clinical trial landscape

LY3526318 · 5 trials · 5 indications

Phase 2 3Phase 1 2
NCT05177094Chronic Pain Master Protocol (CPMP): A Study of LY3526318 in Participants With Diabetic Peripheral Neuropathic PainDiabetic Peripheral Neuropathic Pain
COMPLETED155 Analytics
NCT05086289Chronic Pain Master Protocol (CPMP): A Study of LY3526318 in Participants With Chronic Low Back PainChronic Low-back Pain
COMPLETED159 Analytics
NCT05080660Chronic Pain Master Protocol (CPMP): A Study of LY3526318 in Participants With OsteoarthritisOsteoarthritis
COMPLETED160 Analytics
PHASE2COMPLETED
Chronic Pain Master Protocol (CPMP): A Study of LY3526318 in Participants With Diabetic Peripheral Neuropathic Pain
Diabetic Peripheral Neuropathic PainUnlock trial analytics
PHASE2COMPLETED
Chronic Pain Master Protocol (CPMP): A Study of LY3526318 in Participants With Chronic Low Back Pain
Chronic Low-back PainUnlock trial analytics
PHASE2COMPLETED
Chronic Pain Master Protocol (CPMP): A Study of LY3526318 in Participants With Osteoarthritis
OsteoarthritisUnlock trial analytics

Study Endpoints

Primary Endpoints

Change From Baseline in Average Pain Intensity as Measured by the Numeric Rating Scale (NRS)
Baseline, Week 4

The NRS was used to describe pain severity. Participants were asked to describe their average pain over the past 24 hours, on a scale of 0 to 10: 0=no pain, and 10=pain as bad as you can imagine. Posterior mean change from baseline, 95 percent (%) credible intervals was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.

Change From Baseline for Average Pain Intensity as Measured by the Numeric Rating Scale (NRS) at Week 4
Baseline, Week 4

The NRS was used to describe pain severity. Participants were asked to describe their average pain over the past 24 hours, on a scale of 0 to 10: 0 = no pain, and 10 = pain as bad as you can imagine. Posterior mean change from baseline, 95 percent (%) credible interval was derived using Bayesian mixed model repeated measures. Data presented are posterior mean with 95% credible interval.

Part A - SAD, Pharmacokinetics (PK): Area Under the Concentration Time Curve From Time 0 to Infinity (AUC 0-∞) of LY3526318
Predose,1, 2, 4, 6, 8,12, 24, 48, 72, 96 hours post-dose

Area Under the Concentration Time Curve From Time 0 to Infinity (AUC 0-∞) of LY3526318

Part A - SAD, PK: Maximum Observed Drug Concentration (Cmax) of LY3526318
Predose,1, 2, 4, 6, 8,12, 24, 48, 72, 96 hours post-dose
Part B - MAD, PK: Area Under the Concentration Time Curve From Time Zero to the End of the Dosing Interval, Tau (AUC[0-tau ]) of LY3526318
Day 5: Predose,1, 2, 4, 6, 8,12, 24 hours post dose

Part B - MAD, PK: Area Under the Concentration Time Curve From Time Zero to the End of the Dosing Interval, Tau (AUC\[0-tau \]) of LY3526318

Part B - MAD, PK: Maximum Observed Drug Concentration (Cmax) of LY3526318
Day 5: Predose,1, 2, 4, 6, 8,12, 24 hours post dose
Decrease in Cinnamaldehyde (CA)-Induced Dermal Blood Flow (DBF) Relative to Placebo Measured by Laser Doppler Imaging (LDI) at 3 Hours Post-dose (LDI)
3 hours post LY3526318 dose (pre-CA challenge), 3.3 hours post LY3526318 dose (post-CA challenge)

CA-induced DBF was measured by laser doppler imaging (LDI). Least Squares (LS) mean was determined by analysis of variance (ANOVA) model with treatment, period, sequence, time and treatment\*time interaction as fixed factors and subject within sequence as a random factor.

Secondary Endpoints

Change From Baseline in the Brief Pain Inventory-Short Form Modified (BPI-SFM) Total Pain Interference Score
Baseline, Week 4
Change From Baseline for Overall Improvement as Measured by Patient's Global Impression of Change
Baseline, Week 4
Change From Baseline for Worst Pain Intensity as Measured by NRS
Baseline, Week 4
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
LY3526318EXPERIMENTALParticipants received 250 milligram (mg) of LY3526318 orally, once daily for the first 4 weeks and were switched to placebo once daily for the next 4 weeks of the treatment period.
PlaceboPLACEBO_COMPARATORParticipants received placebo orally, once daily, for 8-weeks treatment period.
LY3526318 (Part A)EXPERIMENTAL250 mg, 100 milligram (mg) LY3526318 administered orally as single ascending doses under fasted or fed condition.
LY3526318 (Part B)EXPERIMENTAL250 mg LY3526318 administered orally as multiple doses under fasted or fed condition.
Placebo (Part A)PLACEBO_COMPARATORPlacebo administered orally under fasted or fed condition.
Placebo (Part B)PLACEBO_COMPARATORPlacebo administered orally under fasted or fed condition.

Interventions

NameTypeDescription
LY3526318DRUGAdministered orally
PlaceboDRUGAdministered orally
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites37

Inclusion Criteria: * Have a visual analog scale (VAS) pain value ≥40 and \<95 during screening. * Have a history of daily pain for at least 12 weeks based on participant report or medical history. * Have a body mass index \<40 kilograms per meter squared (kg/m²) (inclusive). * Are willing to maint...

Countries:United StatesPuerto RicoNetherlandsBelgium
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Frequently asked questions about LY3526318

What is LY3526318 used for?

LY3526318 is an investigational small molecule being studied for the treatment of pain conditions, including chronic low-back pain, diabetic peripheral neuropathic pain, and osteoarthritis. It has been evaluated in clinical trials for these indications, though it remains in clinical development and is not yet approved.

Who makes LY3526318?

LY3526318 is being developed by Eli Lilly and Company, a pharmaceutical company traded on the NYSE under the ticker symbol LLY. The company has sponsored clinical trials of LY3526318 in healthy participants and in patients with chronic pain conditions.

What phase is LY3526318 in?

LY3526318 has completed Phase 2 clinical trials for chronic low-back pain and diabetic peripheral neuropathic pain. It has also completed Phase 1 trials in healthy participants. The drug is investigational and remains in clinical development, with no approved indications.

What clinical trials is LY3526318 in?

LY3526318 has been studied in several completed trials, including NCT04183283 and NCT04682119 in healthy participants, NCT05086289 in chronic low-back pain, and NCT05177094 in diabetic peripheral neuropathic pain. These trials were randomized, double-blind, and placebo-controlled, with a total enrollment of about 160 participants across all studies.

Is LY3526318 the same as any other drug?

LY3526318 is the primary identifier for this investigational compound developed by Eli Lilly. No alternative names have been established for this drug in the available clinical trial information. It is distinct from other pain medications and is being studied specifically for chronic pain conditions.