Recent Updates
Recently added Catalysts

Eltrekibart

Phase 2

Hidradenitis Suppurativa | Small molecule | Dermatology |Eli Lilly and Company|Trials Updated: Oct 7, 2026

Eltrekibart development status

Highest phase Phase 2
Registered trials 6 across 1 sponsor since Sep 2016

Eltrekibart target and mechanism

ModalitySmall molecule

Also known as LY3041658

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials4
Total Enrollment627

FDA Designations

No designations recorded

Eltrekibart clinical trials

Eltrekibart · 4 trials · 5 indications

Phase 2 3Phase 1 1
NCT06598943A Study of Eltrekibart and Mirikizumab in Adult Patients With Moderately to Severely Active Ulcerative ColitisUlcerative Colitis
ACTIVE NOT_RECRUITING143 Analytics
NCT06046729A Study of Eltrekibart (LY3041658) in Adult Participants With Moderate to Severe Hidradenitis SuppurativaHidradenitis Suppurativa
COMPLETED352 Analytics
NCT04493502A Study of LY3041658 in Adults With Hidradenitis SuppurativaHidradenitis Suppurativa
COMPLETED72 Analytics
PHASE2ACTIVE NOT_RECRUITING
A Study of Eltrekibart and Mirikizumab in Adult Patients With Moderately to Severely Active Ulcerative Colitis
Ulcerative ColitisUnlock trial analytics
PHASE2COMPLETED
A Study of Eltrekibart (LY3041658) in Adult Participants With Moderate to Severe Hidradenitis Suppurativa
Hidradenitis SuppurativaUnlock trial analytics
PHASE2COMPLETED
A Study of LY3041658 in Adults With Hidradenitis Suppurativa
Hidradenitis SuppurativaUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Participants Achieving Clinical Remission
Week 12
Percentage of Participant Achieving Hidradenitis Suppurativa Clinical Response 50 (HiSCR50)
Week 16
Percentage of Participants Achieving Hidradenitis Suppurativa Clinical Response (HiSCR) at Week 16
Week 16

The HiSCR is defined as at least a 50% reduction in the total abscess and inflammatory nodule count (sum of abscesses and inflammatory nodules \[AN count\]) with no increase in abscess count (A count) and no increase in draining fistulae count (DF count) relative to baseline. Non-responder imputation (NRI): Participants with missing data were considered non-responders.

Number of Participants with One or More Serious Adverse Event(s) (SAEs) Considered by the Investigator to be Related to Study Drug Administration
Dosing Day 1 through Day 127

Secondary Endpoints

Percentage of Participants Achieving Clinical Response
Week 12
Percentage of Participants Achieving Endoscopic Improvement
Week 12
Percentage of Participants Achieving Endoscopic Remission
Week 12
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Eltrekibart + PlaceboEXPERIMENTALParticipants will receive eltrekibart with placebo, eltrekibart or mirikizumab.
Mirikizumab + PlaceboEXPERIMENTALParticipants will receive mirikizumab and placebo or mirikizumab.
Eltrekibart + MirikizumabEXPERIMENTALParticipants will receive eltrekibart and mirikizumab in combination or separately as monotherapy.
PlaceboEXPERIMENTALParticipants will receive placebo or mirikizumab.
Eltrekibart Dose 1EXPERIMENTALEltrekibart will be given subcutaneously (SC).
Eltrekibart Dose 2EXPERIMENTALEltrekibart will be given SC.
Eltrekibart Dose 3EXPERIMENTALEltrekibart will be given SC.
LY3041658EXPERIMENTALParticipants received 600 mg LY3041658 administered intravenously (IV) once every 2 weeks (Q2W).

Interventions

NameTypeDescription
EltrekibartDRUGAdministered
MirikizumabDRUGAdministered
PlaceboDRUGAdministered
LY3041658DRUGAdministered IV
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to 75 Years
SexALL
Healthy VolunteersNo
Study Sites207

Inclusion Criteria: * Have had an established diagnosis of UC of ≥3 months in duration before baseline. * Have moderately to severely active UC as assessed by the UC disease activity score. * Have an inadequate response to, loss of response to, or intolerance to at least one conventional medication...

Countries:United StatesArgentinaBelgiumCanadaColombiaCroatiaCzechiaDenmarkFranceGermanyGreeceHungaryIrelandItalyJapanLatviaPolandRomaniaSerbiaSpainTurkey (Türkiye)Australia
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

MEDIUMOct 7, 2026NCT06598943Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMOct 7, 2026NCT06598943Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWSep 30, 2026NCT06598943primaryCompletionDate: changed
LOWSep 30, 2026NCT06598943primaryCompletionDate: changed
MEDIUMSep 21, 2026NCT06046729TRIAL_REMOVED: changed
MEDIUMSep 21, 2026NCT06046729TRIAL_REMOVED: changed
MEDIUMSep 21, 2026NCT06046729TRIAL_REMOVED: changed
HIGHAug 21, 2026NCT06046729Status: ACTIVE_NOT_RECRUITING → COMPLETED
HIGHAug 21, 2026NCT06046729Status: ACTIVE_NOT_RECRUITING → COMPLETED
LOWAug 4, 2026NCT06046729lastUpdatePostDate: changed
LOWAug 4, 2026NCT06046729lastUpdatePostDate: changed
LOWJul 30, 2026NCT06598943Enrollment: 140 → 143
LOWJul 30, 2026NCT06598943Enrollment: 140 → 143

Frequently asked questions about Eltrekibart

What is Eltrekibart?

Eltrekibart is an investigational small molecule being developed by Eli Lilly and Company for inflammatory conditions. It is in Phase 2 clinical development for hidradenitis suppurativa and ulcerative colitis. Eltrekibart has been studied in a completed Phase 2 trial in hidradenitis suppurativa and an active Phase 2 trial in ulcerative colitis.

What is Eltrekibart used for?

Eltrekibart is being evaluated for the treatment of hidradenitis suppurativa and ulcerative colitis. It is an investigational therapy and has not been approved for any indication. Clinical trials have enrolled adults with moderate to severe hidradenitis suppurativa and moderately to severely active ulcerative colitis.

Who makes Eltrekibart?

Eltrekibart is being developed by Eli Lilly and Company, which trades on the New York Stock Exchange under the ticker LLY. Eli Lilly is conducting the clinical development program for eltrekibart in hidradenitis suppurativa and ulcerative colitis.

What phase is Eltrekibart in?

Eltrekibart is in Phase 2 clinical development. A Phase 2 trial in hidradenitis suppurativa has been completed, and a Phase 2 trial in ulcerative colitis is active but not recruiting. Eltrekibart is investigational and has not been approved by the FDA for any indication.

What clinical trials is Eltrekibart in?

Eltrekibart has been studied in two Phase 2 trials. NCT06046729 evaluated eltrekibart in adults with moderate to severe hidradenitis suppurativa and has completed with 352 participants. NCT06598943 is evaluating eltrekibart and mirikizumab in adults with moderately to severely active ulcerative colitis and is active but not recruiting, with 143 participants.

Is Eltrekibart the same as LY3041658?

Yes, LY3041658 is an alternative designation for eltrekibart. The Phase 2 hidradenitis suppurativa trial NCT06046729 refers to the drug as eltrekibart (LY3041658). Both names refer to the same investigational compound being developed by Eli Lilly and Company.