Drugs / ENVUCITINIB
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ENVUCITINIB

also known as ESK-001 · envudeucitinib

Small molecule targets TYK2 via inhibition

Developed for
psoriasis · intermediate uveitis · panuveitis · posterior uveitis · systemic lupus erythematosus
Investigated by
Alumis Inc

Trials 12

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 15 trials
Phase 1 NCT06952634 Apr 2025 → Mar 2026 — Alumis Inc Completed No outcome recorded
Phase 1 NCT06962774 Apr → Aug 2025 impaired renal function disease Alumis Inc Completed No outcome recorded
Phase 1 NCT07378579 Jun → Aug 2024 — Alumis Inc Completed No outcome recorded
Phase 1 NCT05431634 May → Dec 2022 — Alumis Inc Completed No outcome recorded
Phase 1 NCT05330858 Mar → Jun 2022 — Alumis Inc Completed No outcome recorded
Phase 24 trials · 1 met primary · 1 missed
Phase 2 NCT05966480 Jun 2023 → Jul 2026 overdue systemic lupus erythematosus Alumis Inc Active not recruiting Missed primary
Phase 2 NCT05953688 Jun 2023 → Aug 2024 intermediate uveitis, panuveitis, posterior uveitis Alumis Inc Terminated No outcome recorded
Phase 2 NCT05739435 Jan 2023 → Dec 2026 expected psoriasis Alumis Inc Active not recruiting No outcome recorded
Phase 2 NCT05600036 Sep 2022 → Jun 2023 psoriasis Alumis Inc Completed Met primary
Phase 33 trials · 2 met primary
Phase 3 NCT06846541 Jan 2025 → Nov 2028 expected psoriasis Alumis Inc Active not recruiting No outcome recorded
Phase 3 NCT06588738 Aug 2024 → Sep 2025 psoriasis Alumis Inc Completed Met primary
Phase 3 NCT06586112 Jul 2024 → Sep 2025 psoriasis Alumis Inc Completed Met primary

News releases announcing trial results or a regulatory action · 6

DateIssuerRelease
2026-10-09 Alumis Inc Results Alumis Announces New Phase 3 Data Demonstrating Envudeucitinib Rapidly and Durably Improved Psoriasis Burden Across Scalp, Itch, and Quality of Life Measures alumis.com ↗
The data demonstrated early and durable improvements across scalp disease severity (a high-impact, difficult-to-treat area), itch resolution, and quality of life measures.
2026-09-01 Alumis Inc Results Alumis Announces Topline Results from Envudeucitinib Phase 2b Trial in Systemic Lupus Erythematosus (SLE) alumis.com ↗
Robust responses in the prespecified subgroup of patients with high interferon gene signature (IFNGS-high) support moving forward with Phase 3 development in SLE
2026-08-10 Alumis Inc Results Envudeucitinib Long-term Data Positioned to Set a New Standard for Plaque Psoriasis Treatment, Delivering Highest Reported PASI 100 Skin Clearance Among Oral Therapies alumis.com ↗
Data confirm envudeucitinib delivered leading skin clearance and the highest reported Psoriasis Area and Severity Index (PASI) 100 response rates among existing and investigational oral therapies.
2026-03-28 Alumis Inc Results Alumis’ Envudeucitinib Delivers Early and Robust Improvements in Skin Clearance, Quality of Life and Psoriasis Symptoms in Two Phase 3 Trials, Underscoring Its Potential as a Leading Oral Therapy for Plaque Psoriasis alumis.com ↗
Envudeucitinib demonstrated robust skin clearance, achieving high thresholds of clinical response at Week 16 that continued to deepen through Week 24 in both trials.
2026-01-06 Alumis Inc Results Alumis’ Envudeucitinib Delivers Leading Skin Clearance Among Next-Generation Oral Plaque Psoriasis Therapies in Phase 3 Program alumis.com ↗
Envudeucitinib met all primary and secondary endpoints with high statistical significance in ONWARD1 and ONWARD2.
2024-09-27 Alumis Inc Results Late-Breaking Data at EADV of ESK-001, an Oral TYK2 Inhibitor for the Treatment of Psoriasis, Demonstrate Significant Responses with Sustained Increases Over 28 Weeks in Phase 2 OLE Study alumis.com ↗
28-week data show ESK-001 was generally well tolerated and most patients treated with the top dose of 40 mg twice daily achieved PASI 75

All press releases naming this drug 13 releases

DateIssuerRelease

Evidence & citations 7 cited values

Every value below carries the sentence it was read from. 15 sources stand behind the page.

FieldValueCited text
Known as ENVUCITINIB ChEMBL registry synonym — accepted as the source's own label CHEMBL5499275 ↗
Known as envudeucitinib ClinicalTrials.gov intervention name — accepted as the source's own label NCT05739435 ↗
5

NCT05966480 ↗

NCT06586112 ↗

NCT06588738 ↗

NCT06952634 ↗

NCT06846541 ↗

Known as ESK-001 “Patients will enter the long-term extension study following completion of one of the parent studies (ESK-001-016 or ESK-001-017) and will receive open-label ESK-001 twice daily...” NCT06846541 ↗
7

“Envudeucitinib (ESK-001), a highly selective, oral tyrosine kinase 2 inhibitor” PMID 41061968 ↗ Oct 2025

NCT06962774 ↗

NCT07378579 ↗

NCT05330858 ↗

NCT05953688 ↗

NCT05600036 ↗

NCT05431634 ↗

Action Inhibit “Highly selective, allosteric inhibition of TYK2 with oral ESK-001” PMID 40659116 ↗ Jul 2025
Modality Small molecule — CHEMBL5499275 ↗
Route Oral “ESK-001 administered as an oral liquid” NCT05330858 ↗
Target TYK2 “Highly selective, allosteric inhibition of TYK2 with oral ESK-001” PMID 40659116 ↗ Jul 2025