Drugs / M1095
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M1095

also known as Sonelokimab · ALX-0761 · MSB0010841 · SLK

Protein / enzyme biologic targets IL17A, IL17F via inhibition

Developed for
hidradenitis suppurativa · psoriatic arthritis · psoriasis
Investigated by
MoonLake Immunotherapeutics AG · Avillion LLP · Bond Avillion 2 Development LP · Merck KGaA, Darmstadt, Germany

Trials 11

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 11 trial
Phase 1 NCT02156466 Aug 2014 → Aug 2015 psoriasis Merck KGaA, Darmstadt, Germany Completed No outcome recorded
Phase 23 trials · 3 met primary
Phase 2 NCT05640245 Dec 2022 → Sep 2023 psoriatic arthritis MoonLake Immunotherapeutics AG Completed Met primary
Phase 2 NCT05322473 Apr 2022 → May 2023 hidradenitis suppurativa MoonLake Immunotherapeutics AG Completed Met primary
Phase 2 NCT03384745 Jul 2018 → Jun 2019 psoriasis Bond Avillion 2 Development LP Completed Met primary
Phase 37 trials · 1 met primary
Phase 3 NCT07223138 Nov 2025 → Feb 2028 expected psoriatic arthritis MoonLake Immunotherapeutics AG Enrolling by invitation No outcome recorded
Phase 3 NCT07007637 Jun 2025 → Jun 2028 expected hidradenitis suppurativa MoonLake Immunotherapeutics AG Enrolling by invitation No outcome recorded
Phase 3 NCT06768671 Dec 2024 → Sep 2026 overdue hidradenitis suppurativa MoonLake Immunotherapeutics AG Active not recruiting No outcome recorded
Phase 3 NCT06641076 Oct 2024 → May 2026 overdue psoriatic arthritis MoonLake Immunotherapeutics AG Active not recruiting Met primary
Phase 3 NCT06641089 Oct 2024 → Jan 2027 expected psoriatic arthritis MoonLake Immunotherapeutics AG Active not recruiting No outcome recorded
Phase 3 NCT06411899 May 2024 → Sep 2025 hidradenitis suppurativa MoonLake Immunotherapeutics AG Completed No outcome recorded
Phase 3 NCT06411379 May 2024 → Aug 2025 hidradenitis suppurativa MoonLake Immunotherapeutics AG Completed No outcome recorded

News releases announcing trial results or a regulatory action · 20

DateIssuerRelease
2026-08-10 MoonLake Immunotherapeutics AG Results MoonLake Announces Positive Topline Results from the Phase 3 IZAR-1 Trial of Sonelokimab in Psoriatic Arthritis Demonstrating Significant Improvements Across all Clinical Endpoints, and Reports Second Quarter 2026 Financial Results moonlaketx.com ↗
In patients with concomitant skin involvement, 61% achieved PASI90 at Week 16.
2026-06-21 MoonLake Immunotherapeutics AG Results MoonLake Announces Week 52 Results of Sonelokimab from its Phase 3 VELA Program in Hidradenitis Suppurativa and Confirms Investor Day on June 22, 2026 moonlaketx.com ↗
Namely, ~67% of patients treated with SLK achieved HiSCR75 at the one-year mark, with more than one quarter of patients achieving inflammatory remission (IHS4-100), and around one third reaching HiSCR100
2026-03-28 MoonLake Immunotherapeutics AG Results MoonLake announces Week 40 Results from its Phase 3 Clinical Trials of Sonelokimab in Hidradenitis Suppurativa at the 2026 AAD Annual Meeting moonlaketx.com ↗
Patients treated with SLK also showed substantial improvements in HiSQOL items at week 40 versus baseline, ranging from 41% (pain), to 54% (walking, getting dressed) to 62% (down or depressed)
2026-02-22 MoonLake Immunotherapeutics AG Results MoonLake Announces Positive Topline Results from its Phase 2 Clinical Trial of Sonelokimab in Axial Spondyloarthritis and Reports 2025 Financial Results moonlaketx.com ↗
In the Phase 2 S-OLARIS clinical trial in axial spondyloarthritis (axSpA), sonelokimab (SLK) demonstrated clinically meaningful benefit with 80+% of patients achieving ASAS40 by Week 12
2026-02-02 MoonLake Immunotherapeutics AG Regulatory MoonLake Announces FDA Fast Track Designation for Sonelokimab Palmoplantar Pustulosis (PPP) and Provides Details on Upcoming Investor Day moonlaketx.com ↗
2026-01-08 MoonLake Immunotherapeutics AG Regulatory MoonLake Immunotherapeutics Announces Positive Outcome from Type B Meeting with U.S. FDA and Announces Investor Day moonlaketx.com ↗
FDA feedback confirms that the Company may establish substantial evidence of effectiveness (SEE), without additional clinical trials in HS, with a BLA consisting of data from its existing VELA-1, VELA-2 and MIRA trials
2025-11-05 MoonLake Immunotherapeutics AG Results MoonLake Immunotherapeutics Reports Third Quarter 2025 Financial Results and Announces New Data from Clinical Trials of its Nanobody® Sonelokimab moonlaketx.com ↗
Reported results of its Phase 2 LEDA clinical trial in Palmoplantar Pustulosis (PPP) where sonelokimab (SLK) demonstrated clinically meaningful and statistically significant benefit
2025-09-28 MoonLake Immunotherapeutics AG Results MoonLake Immunotherapeutics reports on week 16 results of the VELA Phase 3 hidradenitis suppurativa program with the Nanobody® sonelokimab moonlaketx.com ↗
In the combined VELA program, patients treated with sonelokimab experienced a clinically meaningful and statistically significant improvement across all primary and key secondary endpoints using both pre-specified strategies (p<0.001)
2024-06-10 MoonLake Immunotherapeutics AG Regulatory MoonLake Immunotherapeutics Announces Positive Regulatory Feedback from both FDA and EMA on Path for the Phase 3 Program for the Nanobody® sonelokimab in Psoriatic Arthritis moonlaketx.com ↗
Clarified path for PsA Phase 3 program with study design, patient population and endpoints agreed
2024-03-10 MoonLake Immunotherapeutics AG Results MoonLake announces significant improvements with Nanobody® sonelokimab over 24 weeks in active psoriatic arthritis (PsA) and other important updates at its R&D Day moonlaketx.com ↗
The ARGO trial, which involved 207 patients with active PsA, demonstrated that the primary endpoint, the American College of Rheumatology (ACR) 50, continued to improve from week 12 and exceeded 60% by week 24.
2024-02-26 MoonLake Immunotherapeutics AG Regulatory MoonLake Immunotherapeutics Announces Positive Feedback from both FDA and EMA on Regulatory Path for the Phase 3 Program of the Nanobody® sonelokimab (SLK) in Hidradenitis Suppurativa (HS) moonlaketx.com ↗
2023-11-05 MoonLake Immunotherapeutics AG Results MoonLake Immunotherapeutics announces landmark Phase 2 results for Nanobody® sonelokimab in active psoriatic arthritis moonlaketx.com ↗
MoonLake Immunotherapeutics (“MoonLake”; Nasdaq: MLTX), a clinical-stage biotechnology company focused on creating next-level therapies for inflammatory diseases, today announced positive top-line results from its global Phase 2 ARGO trial evaluating the efficacy and safety of the Nanobody ® sonelokimab in patients with active psoriatic arthritis (PsA).

All press releases naming this drug 31 releases

DateIssuerRelease

Evidence & citations 10 cited values

Every value below carries the sentence it was read from. 13 sources stand behind the page.

FieldValueCited text
Known as M1095 “Drug: Sonelokimab (M1095)” NCT05322473 ↗
1

NCT03384745 ↗

Known as ALX-0761 ChEMBL registry synonym — accepted as the source's own label CHEMBL4298023 ↗
Known as MSB0010841 ClinicalTrials.gov intervention name — accepted as the source's own label NCT02156466 ↗
Known as SLK “trial of sonelokimab (SLK), a nanobody that binds with a similarly high affinity to IL-17A and IL-17F, inhibiting all dimers.” PMID 41053449 ↗ Oct 2025
Known as Sonelokimab ClinicalTrials.gov intervention name — accepted as the source's own label NCT05640245 ↗
8

NCT06768671 ↗

NCT06641089 ↗

NCT06411379 ↗

NCT07223138 ↗

NCT06411899 ↗

NCT07007637 ↗

NCT06641076 ↗

NCT05322473 ↗

Action Inhibit “Interleukin 17A inhibitor” CHEMBL4298023 ↗
2

“Interleukin-17F inhibitor” CHEMBL4298023 ↗

“Anti- IL-17A/F Nanobody” NCT02156466 ↗

Modality Protein / enzyme biologic “MSB0010841(Anti- IL-17A/F Nanobody)” NCT02156466 ↗
Route Subcutaneous “as SC injection” NCT02156466 ↗
Target IL17A “Interleukin 17A inhibitor” CHEMBL4298023 ↗
Target IL17F “Interleukin-17F inhibitor” CHEMBL4298023 ↗