NCT04349436

An Open-Label, Multicenter, Phase 1B/2 Study of RP1 in Solid Organ and Hematopoietic Cell Transplant Recipients With Advanced Cutaneous Malignancies (ARTACUS)

Study Summary

The purpose of this study is to assess the safety and efficacy of RP1 (administered into the tumor) in 90 patients who have received an organ transplant in the past and currently have skin cancer. The skin cancer is either locally advanced (large tumors in the skin, muscles or nerves) or metastatic (spread to other parts of the body). This study will consist of a 28-day Screening Period, a Treatment Period, and a Follow-up Period. During the Treatment Period, patients will be dosed with RP1 every two weeks for up to 2 years (104 weeks). Tumor measurements will be done approximately every 8 weeks (and additionally if needed) until progressive disease, start of subsequent anticancer therapy, or completion/discontinuation of the study. During the Follow-up Period, patients will visit the clinic at 30, 60, and 100-150 days after their last dose of RP1 for safety and quality of life assessments. Patients will continue follow-up for up to 3 years from the day of the last patient's first dose.

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Interventions

RP1, intra-tumoral injection, oncolytic virusBIOLOGICAL
Genetically modified herpes simplex type 1 virus

Study Locations

FacilityCityStateCountry
Medical Dermatology SpecialistsPhoenixArizonaUnited States
Mayo Clinic ArizonaPhoenixArizonaUnited States
University of California, San DiegoLa JollaCaliforniaUnited States
University of California, Los AngelesLos AngelesCaliforniaUnited States
UCSF, Helen Diller Family Comprehensive Cancer CenterSan FranciscoCaliforniaUnited States
University of Colorado Cancer Center School of MedicineAuroraColoradoUnited States
Mayo Clinic FloridaJacksonvilleFloridaUnited States
University of Miami Sylvester Comprehensive Cancer CenterMiamiFloridaUnited States
Moffitt Cancer CenterTampaFloridaUnited States
University of ChicagoChicagoIllinoisUnited States
Dana Farber Cancer InstituteBostonMassachusettsUnited States
University of MichiganAnn ArborMichiganUnited States
Mayo Clinic RochesterRochesterMinnesotaUnited States
Washington University in St. LouisSt LouisMissouriUnited States
Columbia University Medical CenterNew YorkNew YorkUnited States
Rochester Dermatologic SurgeryNew YorkNew YorkUnited States
University of North Carolina Lineberger Comprehensive Cancer CenterChapel HillNorth CarolinaUnited States
Duke UniversityDurhamNorth CarolinaUnited States
University of CincinnatiCincinnatiOhioUnited States
The Cleveland Clinic FoundationClevelandOhioUnited States
The Ohio State University Comprehensive Cancer CenterColumbusOhioUnited States
Oregon Health and Science UniversityPortlandOregonUnited States
University of Pittsburgh Medical CenterPittsburghPennsylvaniaUnited States
University of Tennessee Medical Center at KnoxvilleKnoxvilleTennesseeUnited States
University of Texas SouthwesternDallasTexasUnited States
MD Anderson Cancer CenterHoustonTexasUnited States
Inova Schar Cancer InstituteFairfaxVirginiaUnited States
VCU Massey Cancer CenterRichmondVirginiaUnited States

Official Trial Information

View on ClinicalTrials.gov

Data sourced from ClinicalTrials.gov. Last updated: April 14, 2026