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Sonelokimab

Phase 3

Hidradenitis Suppurativa | Small molecule | Dermatology |MoonLake Immunotherapeutics|Last Updated: Jul 13, 2026

Target and mechanism

Molecular targetIL17A, IL17F
Target classInhibitor
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials5
Total Enrollment1,944

FDA Designations

FAST_TRACK

Clinical trial landscape

Sonelokimab · 10 trials · 3 indications

Phase 3 7Phase 2 2Phase 1 1
NCT07223138A Study to Evaluate the Long-term Safety, Tolerability, and Efficacy of Subcutaneous Sonelokimab in Participants With Psoriatic ArthritisArthritis, Psoriatic
ENROLLING BY_INVITATION1,560 Analytics
NCT07007637A Study to Evaluate the Long-term Safety, Tolerability, and Efficacy of Subcutaneous Sonelokimab in Participants With Moderate to Severe Hidradenitis SuppurativaHidradenitis Suppurativa
ENROLLING BY_INVITATION835 Analytics
NCT06768671An Open-label, Single-arm Study to Evaluate Pharmacokinetics and Safety of Subcutaneous Sonelokimab in Adolescents With Moderate to Severe Hidradenitis Suppurativa (VELA-TEEN)Hidradenitis Suppurativa
ACTIVE NOT_RECRUITING35 Analytics
NCT06641076Evaluation of Sonelokimab in Patients With Active Psoriatic Arthritis Naive to Biologic Disease-Modifying Antirheumatic DrugArthritis, Psoriatic
ACTIVE NOT_RECRUITING960 Analytics
NCT06641089Evaluation of Sonelokimab in Patients With Active Psoriatic Arthritis and Anti-TNFα Inadequate ResponseArthritis, Psoriatic
RECRUITING600 Analytics
NCT06411899A Study to Evaluate the Efficacy and Safety of Subcutaneous Sonelokimab Compared With Placebo in Adult Participants With Moderate to Severe Hidradenitis SuppurativaHidradenitis Suppurativa
COMPLETED422 Analytics
NCT06411379Study to Evaluate the Efficacy and Safety of Subcutaneous Sonelokimab Compared With Placebo in Adult Participants With Moderate to Severe Hidradenitis SuppurativaHidradenitis Suppurativa
COMPLETED418 Analytics
PHASE3ENROLLING BY_INVITATION
A Study to Evaluate the Long-term Safety, Tolerability, and Efficacy of Subcutaneous Sonelokimab in Participants With Psoriatic Arthritis
Arthritis, PsoriaticUnlock trial analytics
PHASE3ENROLLING BY_INVITATION
A Study to Evaluate the Long-term Safety, Tolerability, and Efficacy of Subcutaneous Sonelokimab in Participants With Moderate to Severe Hidradenitis Suppurativa
Hidradenitis SuppurativaUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
An Open-label, Single-arm Study to Evaluate Pharmacokinetics and Safety of Subcutaneous Sonelokimab in Adolescents With Moderate to Severe Hidradenitis Suppurativa (VELA-TEEN)
Hidradenitis SuppurativaUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Evaluation of Sonelokimab in Patients With Active Psoriatic Arthritis Naive to Biologic Disease-Modifying Antirheumatic Drug
Arthritis, PsoriaticUnlock trial analytics
PHASE3RECRUITING
Evaluation of Sonelokimab in Patients With Active Psoriatic Arthritis and Anti-TNFα Inadequate Response
Arthritis, PsoriaticUnlock trial analytics
PHASE3COMPLETED
A Study to Evaluate the Efficacy and Safety of Subcutaneous Sonelokimab Compared With Placebo in Adult Participants With Moderate to Severe Hidradenitis Suppurativa
Hidradenitis SuppurativaUnlock trial analytics
PHASE3COMPLETED
Study to Evaluate the Efficacy and Safety of Subcutaneous Sonelokimab Compared With Placebo in Adult Participants With Moderate to Severe Hidradenitis Suppurativa
Hidradenitis SuppurativaUnlock trial analytics

Study Endpoints

Primary Endpoints

Long-term safety and tolerability of sonelokimab:
52 weeks

Treatment-emergent adverse events (TEAEs)

Long-term safety and tolerability of sonelokimab: Adverse events (AEs) following treatment with sonelokimab
2.5-3 years

Incidence, relatedness, severity and seriousness of all AEs

Long-term safety and tolerability of sonelokimab: Treatment emergent adverse events (TEAEs)
2.5-3 years

Incidence, relatedness, severity and seriousness of all TEAEs

Long-term safety and tolerability of sonelokimab: Adverse events of special interest (AESIs)
2.5-3 years

Incidence, relatedness, severity and seriousness of all AESIs

Long-term safety and tolerability of sonelokimab: Discontinuation of sonelokimab treatment due to AEs
2.5-3 years

Number of participants discontinued from sonelokimab treatment due to AEs

Long-term safety and tolerability of sonelokimab: Clinically significant changes in clinical laboratory parameters
2.5-3 years

Number of participants with clinically significant changes in hematology, biochemistry and urinalysis from baseline

Long-term safety and tolerability of sonelokimab: Clinically significant changes in vital signs and standard 12-lead electrocardiogram
2.5-3 years

Number of participants with clinically significant changes in vital signs and 12-lead ECG intervals from baseline

Pharmacokinetics (PK) of sonelokimab in adolescents
Week 24

PK (trough concentrations) of sonelokimab over 24 weeks of treatment

Adverse events (AEs) following treatment with sonelokimab in adolescents
Week 24

Incidence, relatedness, severity and seriousness of all AEs over 24 weeks of treatment from baseline

Discontinuation of sonelokimab treatment due to AEs
Week 24

Number of participants discontinued from sonelokimab treatment due to AE over 24 weeks of treatment from baseline

Clinically significant changes in clinical laboratory parameters
Week 24

Number of participants with clinically significant changes in hematology, biochemistry and urinalysis from baseline

Clinically significant changes in vital signs
Week 24

Number of participants with clinically significant changes in vital signs from baseline

Clinically significant changes in standard 12-lead electrocardiogram (ECG) intervals
Week 24

Number of participants with clinically significant changes in 12-lead ECG intervals from baseline

Response rate of participants achieving at least a 50% improvement in the American College of Rheumatology criteria (ACR50)
Week 16

Proportion of participants achieving ACR50

Hidradenitis Suppurativa Clinical Response 75
Week 16

Percentage of participants achieving Hidradenitis Suppurativa Clinical Response 75 (HiSCR75) where HiSCR75 is defined as at least a 75% reduction from baseline in abscess and inflammatory nodule (AN) count, with no increase from baseline in abscess or draining fistula count.

Comparison of pharmacokinetics (PK) of an AI versus PFS administered single dose of sonelokimab
64 days

To compare the PK of an AI versus PFS administered single-dose of sonelokimab in terms of maximum concentration (Cmax)

Secondary Endpoints

Long-term efficacy of sonelokimab:
52 weeks
Long term efficacy of sonelokimab
52 weeks
Long-term efficacy of sonelokimab: Hidradenitis Suppurativa Clinical Response 75 (HiSCR75)
2.5 - 3 years
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Experimental: sonelokimab doseEXPERIMENTALAll participants will receive sonelokimab subcutaneously every 4 weeks
Experimental: sonelokimabEXPERIMENTALAll participants will receive sonelokimab 120 mg Q4W for up to 2 years
sonelokimabEXPERIMENTALSubjects will receive sonelokimab 120mg subcutaneously (SC) as an induction regimen of 4 doses, followed by sonelokimab SC every 4 weeks maintenance dose starting at Week 8
sonelokimab dose with an induction regimenEXPERIMENTALSubjects randomized to this arm will receive sonelokimab subcutaneously (SC) as an induction regimen of 4 doses, followed by sonelokimab SC every 4 weeks maintenance dosing starting at Week 8.
sonelokimab dose without an induction regimenEXPERIMENTALSubjects randomized to this arm will receive sonelokimab subcutaneously every 4 weeks.
PlaceboPLACEBO_COMPARATORSubjects randomized to this arm will receive placebo subcutaneously.
sonelokimab dose 1 with an induction regimenEXPERIMENTALSubjects randomized to this arm will receive sonelokimab dose 1 subcutaneously (SC) as an induction regimen of 4 doses , followed by sonelokimab SC every 4 weeks (Q4W) maintenance dosing starting at Week 8.
sonelokimab dose 2 with an induction regimenEXPERIMENTALSubjects randomized to this arm will receive sonelokimab dose 2 SC as an induction regimen of 4 doses, followed by sonelokimab SC Q4W maintenance dosing starting at Week 8.
risankizumabACTIVE_COMPARATORSubjects randomized to this arm will receive risankizumab SC
sonelokimab dose regimen 1EXPERIMENTALSubjects randomized to this arm will receive assigned sonelokimab dosage regimen 1
sonelokimab dose regimen 2EXPERIMENTALSubjects randomized to this arm will receive assigned sonelokimab dosage regimen 2
sonelokimab dose regimen 3EXPERIMENTALSubjects randomized to this arm will receive assigned sonelokimab dosage regimen 3
adalimumabACTIVE_COMPARATORSubjects randomized to this arm will receive adalimumab
sonelokimab dose 1EXPERIMENTALSubjects randomized to this arm will receive assigned sonelokimab dosage regimen and placebo to maintain the blinding with adalimumab and placebo arms during the Treatment Period.
sonelokimab dose 2EXPERIMENTALSubjects randomized to this arm will receive assigned sonelokimab dosage regimen and placebo to maintain the blinding with adalimumab and placebo arms during the Treatment Period.
Sonelokimab via a PFSEXPERIMENTAL -
Sonelokimab via an AIEXPERIMENTAL -

Interventions

NameTypeDescription
SonelokimabDRUGOpen-label
PlaceboDRUGRandomized treatment, parallel-group
RisankizumabDRUGActive comparator
AdalimumabDRUGrandomized treatment; parallel-group
Sonelokimab (M1095)DRUGrandomized treatment; parallel-group
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites16

Inclusion Criteria: 1. Participants who, in the opinion of the investigator, are expected to benefit from participation in this OLE study. 2. Participants who have received the second to last and/or last dose, as planned in the parental study, and have completed the end-of-treatment visit of the pa...

Countries:United StatesBelgiumBulgariaCanadaCzechiaFranceGermanyHungaryItalyNetherlandsNorwayPolandPortugalSlovakiaSpainUnited KingdomCroatiaEstoniaFinlandGeorgiaGreeceLatviaLithuaniaRomaniaSerbiaIreland
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Recent Changes (Last 90 Days)

LOWJul 13, 2026NCT06641089lastUpdatePostDate: changed
LOWJul 13, 2026NCT06641076lastUpdatePostDate: changed
LOWJul 13, 2026NCT06641089lastUpdatePostDate: changed
LOWJul 13, 2026NCT06641076lastUpdatePostDate: changed
MEDIUMJul 9, 2026NCT06411899TRIAL_REMOVED: changed
MEDIUMJul 9, 2026NCT06411379TRIAL_REMOVED: changed
MEDIUMJul 9, 2026NCT06411899TRIAL_REMOVED: changed
MEDIUMJul 9, 2026NCT06411379TRIAL_REMOVED: changed
MEDIUMJul 9, 2026NCT06411899TRIAL_REMOVED: changed
MEDIUMJul 9, 2026NCT06411379TRIAL_REMOVED: changed
LOWJun 12, 2026NCT06641089lastUpdatePostDate: changed
LOWJun 12, 2026NCT06641076lastUpdatePostDate: changed
LOWJun 12, 2026NCT06641089lastUpdatePostDate: changed
LOWJun 12, 2026NCT06641076lastUpdatePostDate: changed
LOWJun 11, 2026NCT07223138lastUpdatePostDate: changed
LOWJun 11, 2026NCT07223138lastUpdatePostDate: changed
LOWJun 8, 2026NCT07007637lastUpdatePostDate: changed
HIGHJun 8, 2026NCT06411899Status: ACTIVE_NOT_RECRUITING → COMPLETED
HIGHJun 8, 2026NCT06411379Status: ACTIVE_NOT_RECRUITING → COMPLETED
LOWJun 8, 2026NCT07007637lastUpdatePostDate: changed

Frequently asked questions about Sonelokimab

What is Sonelokimab used for?

Sonelokimab is an investigational small molecule being developed for hidradenitis suppurativa and psoriatic arthritis. It is currently in Phase 3 clinical trials for psoriatic arthritis, including in patients naive to biologic disease-modifying antirheumatic drugs. The drug has received Fast Track designation from the FDA.

What does Sonelokimab target?

Sonelokimab targets and inhibits IL-17A and IL-17F, two inflammatory cytokines involved in autoimmune conditions. By blocking these targets, the drug aims to reduce inflammation in diseases like psoriatic arthritis and hidradenitis suppurativa.

Who makes Sonelokimab?

Sonelokimab is being developed by MoonLake Immunotherapeutics, a biopharmaceutical company listed on the stock exchange under the ticker symbol MLTX. The company is conducting clinical trials for the drug in psoriatic arthritis and other inflammatory conditions.

What phase is Sonelokimab in?

Sonelokimab is in Phase 3 clinical development for psoriatic arthritis. It has completed a Phase 2 trial in active psoriatic arthritis and is currently in Phase 3 trials, including a long-term safety study. The drug is investigational and not yet approved by regulatory authorities.

What clinical trials is Sonelokimab in?

Sonelokimab is being studied in several clinical trials. NCT06641076 is a Phase 3 trial in biologic-naive psoriatic arthritis patients. NCT07223138 is a Phase 3 long-term safety study. NCT05640245 was a completed Phase 2 trial in active psoriatic arthritis. NCT06994936 was a Phase 1 bioequivalence study.

Is Sonelokimab the same as other drugs?

Sonelokimab is a distinct investigational drug developed by MoonLake Immunotherapeutics. It is not known to be the same as any other marketed medication. Its unique mechanism targets both IL-17A and IL-17F, differentiating it from other therapies in development.