Active Not Recruiting PHASE2 INTERVENTIONAL 2-arm NCT05695950

A Study Evaluating the Effects of GLPG3667 Given as Oral Treatment for up to 24 Weeks in Adults With Dermatomyositis (GALARISSO)

A Randomized, Double-blind, Placebo-controlled, Multi-center Study to Evaluate the Efficacy, Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Orally Administered GLPG3667 Once Daily for 24 Weeks in Adult Subjects With Dermatomyositis

Sponsor: Galapagos NV

Conditions Dermatomyositis

Interventions GLPG3667 Placebo

Updated 22 times since 2023 Last updated: Dec 22, 2025 Started: Feb 27, 2023 Primary completion: Oct 13, 2025 Completion: Apr 30, 2026

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This PHASE2 trial investigates Dermatomyositis and is currently ongoing. Galapagos NV leads this study, which shows 22 recorded versions since 2023 — indicating substantial longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

Change History

22 versions recorded

Jan 2026 — Present [monthly]

Active Not Recruiting PHASE2
Oct 2025 — Jan 2026 [monthly]

Active Not Recruiting PHASE2
Sep 2025 — Oct 2025 [monthly]

Active Not Recruiting PHASE2
Jun 2025 — Sep 2025 [monthly]

Active Not Recruiting PHASE2

Status: Recruiting → Active Not Recruiting
Apr 2025 — Jun 2025 [monthly]

Recruiting PHASE2

▶ Show 17 earlier versions

Mar 2025 — Apr 2025 [monthly]

Recruiting PHASE2
Jan 2025 — Mar 2025 [monthly]

Recruiting PHASE2
Dec 2024 — Jan 2025 [monthly]

Recruiting PHASE2
Nov 2024 — Dec 2024 [monthly]

Recruiting PHASE2
Oct 2024 — Nov 2024 [monthly]

Recruiting PHASE2
Sep 2024 — Oct 2024 [monthly]

Recruiting PHASE2
Jul 2024 — Sep 2024 [monthly]

Recruiting PHASE2
Jun 2024 — Jul 2024 [monthly]

Recruiting PHASE2
Mar 2024 — Jun 2024 [monthly]

Recruiting PHASE2
Jan 2024 — Mar 2024 [monthly]

Recruiting PHASE2
Dec 2023 — Jan 2024 [monthly]

Recruiting PHASE2
Nov 2023 — Dec 2023 [monthly]

Recruiting PHASE2
Oct 2023 — Nov 2023 [monthly]

Recruiting PHASE2
Sep 2023 — Oct 2023 [monthly]

Recruiting PHASE2
Aug 2023 — Sep 2023 [monthly]

Recruiting PHASE2
Apr 2023 — Aug 2023 [monthly]

Recruiting PHASE2

Status: Not Yet Recruiting → Recruiting
Feb 2023 — Apr 2023 [monthly]

Not Yet Recruiting PHASE2

First recorded

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Galapagos NV

Data source: Galapagos NV

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

Augusta, United States , Barcelona, Spain , Barranquilla, Colombia , Berlin, Germany , Bialystok, Poland , Brescia, Italy , Bucharest, Romania , Buenos Aires, Argentina , Catania, Italy , Chertsey, United Kingdom and 37 more locations