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STATUS Recruitment Complete

Study of Edecesertib in Participants With Cutaneous Lupus Erythematosus (CLE) (COSMIC)

LAST UPDATED

January 12 2026

Clinicaltrials.gov ID

NCT05629208

OVERVIEW

A Randomized, Blinded, Placebo-Controlled, Phase 2a, Proof-of-Concept Study to Evaluate Efficacy, Safety, and Tolerability of GS-5718 in Participants With Cutaneous Lupus Erythematosus (CLE) (COSMIC)

PROTOCOL SUMMARY

The goal of this clinical study is to test how edecesertib (formerly known as GS-5718) can be useful in treating Cutaneous Lupus Erythematosus (CLE) in participants with CLE. Information on what is happening in the body relating to CLE, how the body processes, is affected by and responds to the study drug, and any study drug side effects will also be collected in this study.

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Participation Requirements

Calendar

Age

18 Years - 75 Years

Condition

Sex

ALL

Healthy Icon

Healthy Volunteers

No

Study Details

Medical Condition

Cutaneous Lupus Erythematosus (CLE)

Gender

N/A

Date

April 2023 - December 2025

Study Type

INTERVENTIONAL

Study Phase

PHASE2

Product

Edecesertib, Edecesertib Placebo

Eligibility Information

Inclusion

Inclusion Criteria

  • Either fulfill European League Against Rheumatism/American College of Rheumatology (EULAR/ACR) 2019 classification criteria for systemic lupus erythematosus (SLE) and/or have biopsy confirmed Cutaneous Lupus Erythematosus (CLE) at any time.
  • Must have active CLE at screening and Day 1. Individuals with acute CLE (ACLE) must have involvement of 2 distinct body areas.
  • Cutaneous Lupus Erythematosus Disease Area and Severity Index activity - A (CLASI-A) score (excluding alopecia) of ≥ 8 and CLASI-A erythema score of ≥ 4 during screening and on Day 1. Individuals with SLE must have Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score of ≥ 4 at screening.
  • Presence of at least 1 representative lupus skin lesion amenable to punch biopsy and individual willingness to undergo skin punch biopsy at 2 time points.
  • Must have documented prior intolerance or inadequate response at any time (per investigator judgement) to protocol-specified treatments.
  • Topical corticosteroids or topical calcineurin inhibitors.
  • Oral corticosteroids.
  • Any other nonbiologic standard-of-care therapy, including, but not limited to: chloroquine, quinacrine, hydroxychloroquine, azathioprine, mycophenolate mofetil (MMF), leflunomide, dapsone, or methotrexate (MTX).
  • Individuals willing to comply with all study visits and assessments.
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Exclusion

Exclusion Criteria

  • Individuals with only chilblains lupus, lupus panniculitis, lupus tumidus and/or localized acute CLE involving only 1 distinct body area at screening and Day 1.
  • Have highly active SLE (including but not limited to lupus nephritis, neuropsychiatric SLE, and/or vasculitis).
  • Presence of active skin conditions other than cutaneous lupus that may interfere with assessing lupus-specific skin lesion(s) (eg, psoriasis, and/or drug-induced lupus).
  • Meet protocol-specified infection or lab criteria.
  • Any active infection that is clinically significant (per investigator judgment).
  • Any history of clinically significant liver disease.
  • Significant cardiovascular disease.
  • Note: Other protocol defined Inclusion/Exclusion criteria may apply.
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Locations

Locations (17)
Other

ARENSIA Exploratory Medicine, LLC

Phoenix, Arizona, United States, 85015

Other

Center for Dermatology Clinical Research Inc.

Fremont, California, United States, 94538

Other

University of Colorado, Barbara Davis Center, Center for Clinical Research

Aurora, Colorado, United States, 80045

Other

Yale Center for Clinical Investigation (YCCI)

New Haven, Connecticut, United States, 06510

Other

Clinical Research of West Florida, Inc.

Clearwater, Florida, United States, 33765

Other

Reliant Medical Research

Miami, Florida, United States, 33165

Other

HMD Research LLC

Orlando, Florida, United States, 32819

Other

Emory University School of Medicine

Atlanta, Georgia, United States, 30303

Other

Dawes Fretzin Clinical Research Group, LLC

Indianapolis, Indiana, United States, 46250

Other

Dept. of Dermatology, Hospital of the University of Pennsylvania, Perelman Center for Advanced Medicine (PCAM)

Philadelphia, Pennsylvania, United States, 19104

Other

Gulf Bank Medical Center

Houston, Texas, United States, 77037

Other

Clinical Investigations of Texas

Plano, Texas, United States, 75075

Other

Universitätsklinikum Carl Gustav Carus Klinik und Poliklinik für Dermatologie

Dresden, Germany, 01307

Other

Universitatsklinikum Freiburg Klinik fur Dermatologie und Venerologie

Freiburg im Breisgau, Germany, 79104

Other

Universitätsklinikum Leipzig AöR Klinik und Poliklinik für Dermatologie, Venerologie und Allergologie Klinische Forschungseinheit (KFE) - Haus 10

Leipzig, Germany, 04103

Other

Hospital General de Granollers

Granollers, Spain, 08402

Other

Hospital Universitario de Navarra

Pamplona, Spain, 31008