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Vusolimogene Oderparepvec

Phase 3

Advanced Melanoma | Monoclonal antibody | Oncology |Replimune Group, Inc.|Last Updated: Jul 15, 2026

Target and mechanism

Target class-Vec/-gene (Gene Tx)
ModalityMonoclonal antibody

Also known as Vusolimogene oderparepvec (RP1), Vusolimogene Oderparepvec (VO)

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLEDDMC
Total Trials1
Total Enrollment400

FDA Designations

No designations recorded

Clinical trial landscape

Vusolimogene Oderparepvec · 3 trials · 4 indications

Phase 3 1Phase 2 1Early Phase 1 1
NCT06264180VO and Nivolumab vs Physician's Choice in Advanced Melanoma That Progressed on Anti-PD-1 & Anti-CTLA-4 Drugs [IGNYTE-3]Advanced Melanoma
RECRUITING400 Analytics
PHASE3RECRUITING
VO and Nivolumab vs Physician's Choice in Advanced Melanoma That Progressed on Anti-PD-1 & Anti-CTLA-4 Drugs [IGNYTE-3]
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Study Endpoints

Primary Endpoints

Overall Survival (OS)
Assessed up to January 2029, approximately 55 months

Time from the date of randomization to death due to any cause

Percentage of participants with reported treatment-emergent adverse events (Safety Lead-In)
Up to 1 year

Safety and tolerability will be reported as the percentage of the first 6 participants (the safety-lead in participants) who received at least one dose of study treatment with any reported treatment-emergent adverse events (TEAEs), \>= Grade 3 TEAEs, serious adverse events (SAEs), and TEAEs requiring discontinuation of VO. Adverse events will be classified using NCI Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.

Proportion of participants who experience an objective response (Phase 2 participants)
Up to 1 year

Objective response will be measured per RECIST v. 1.1 and is defined as complete response (CR) or partial response (PR) and confirmed by repeat imaging \>=4 weeks after assessment for participants who completed at least 4 of the planned 8 intratumoral injections.

Percentage of participants with reported treatment-emergent adverse events
Up to 1 year

The percentage of all participants who received at least one dose of study treatment with any treatment-emergent adverse events (TEAEs), ≥ Grade 3 TEAEs, serious adverse events (SAEs), and TEAEs requiring discontinuation of VO. Adverse events will be classified using NCI Common Terminology Criteria for Adverse Events (CTCAE) v. 5.0.

Rate of Sentinel Lymph Node (SLN) Positivity
Up to 2 years (cohort)

Proportion of patients with sentinel lymph node lymph node positivity (disease present in lymph node per pathologic assessment).

Secondary Endpoints

Progression Free Survival (PFS)
Assessed up to January 2029, approximately 55 months
Objective Response Rate (ORR)
Assessed up to January 2029, approximately 55 months
Median Duration of Response (DOR)
Up to 1 year
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
VO + nivolumabEXPERIMENTAL -
Physicians ChoiceACTIVE_COMPARATORChoosing from 1 of the following (to be consistent with approved label and/or applicable local clinical guidelines): * Nivolumab + relatlimab (as Opdualag) * Anti-PD-1 monotherapy (nivolumab or pembrolizumab) * Single-agent chemotherapy (dacarbazine, temozolomide, or paclitaxel/albumin-bound paclitaxel)
Treatment (Vusolimogene Oderparepvec (VO), Pembrolizumab)EXPERIMENTALAll participants receive a single dose of VO on Day -14. On Cycle 1 Day 1 (C1D1), participants receive second dose of VO, and subsequent doses occur every 3 weeks for 7 cycles in combination with 200 mg pembrolizumab every 3 weeks for 8 cycles starting C1D1. After 8 cycles of pembrolizumab, participants may have the pembrolizumab dose schedule altered to a single 400 mg dose every 6 weeks, and treatment with pembrolizumab may continue for up to 2 years after starting first dose on C1D1. Participants may receive up to eight additional doses of VO after progression for a total of 16 dosing days. Safety follow up visits occur 30 and 90 days after last dose of either treatment (whichever drug was taken last) or after the participant has taken 2 years of pembrolizumab as a part of this study.
Vusolimogene oderparepvec (RP1)EXPERIMENTALPatients will receive 3 doses of RP1 (1.0 mL/injection; 10e6 PFU/mL for the first dose, and 10e7 mL for the subsequent 2 doses). The drug will be injected into the skin at the tumor biopsy site at baseline (day 1), day 15, and day 21, 4-5 weeks prior to SOC WLE and SLNB. Definitive surgery will occur up to 28-35 (± 2 days) days from first injection, to avoid treatment delay.

Interventions

NameTypeDescription
Vusolimogene OderparepvecBIOLOGICALGenetically modified Herpes Simplex Type 1 Virus.
NivolumabBIOLOGICALAnti-PD-1 Monoclonal Antibody
Nivolumab + RelatlimabBIOLOGICALNivolumab: Anti-PD-1 Monoclonal antibody. Relatlimab: A lymphocyte activation gene-3 (LAG-3) blocking antibody.
PembrolizumabBIOLOGICALA programmed death receptor-1 (PD-1)-blocking antibody indicated.
Single-agent chemotherapyDRUGDacarbazine, temozolomide, or paclitaxel/albumin-bound paclitaxel.
Vusolimogene Oderparepvec (VO)BIOLOGICALGiven intratumorally
Vusolimogene oderparepvec (RP1)BIOLOGICALVusolimogene Oderparepvec is a genetically modified oncolytic viral strain of the herpes simplex type 1 (HSV-1) virus, with potential oncolytic, immunostimulating and antineoplastic activities.
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Eligibility Criteria

Age Range12 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites81

Key Inclusion Criteria: I 1. Male or female who is 12 years of age or older at the time of signed informed consent. I 2. Patients with histologically or cytologically confirmed unresectable or metastatic Stage IIIb through IV/M1a through M1d cutaneous melanoma, as per AJCC staging system, 8th edit...

Countries:United StatesFranceGermanyGreecePolandSpainUnited Kingdom
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Recent Changes (Last 90 Days)

MEDIUMJul 15, 2026NCT06264180primaryCompletionDate: changed
MEDIUMJul 15, 2026NCT06264180primaryCompletionDate: changed

Frequently asked questions about Vusolimogene Oderparepvec

What is Vusolimogene Oderparepvec used for?

Vusolimogene Oderparepvec (VO) is an investigational oncology therapy being studied for melanoma, advanced melanoma, and angiosarcoma. It is currently in clinical development, including a Phase 3 trial for advanced melanoma that progressed on anti-PD-1 and anti-CTLA-4 drugs.

Who makes Vusolimogene Oderparepvec?

Vusolimogene Oderparepvec is being developed by Replimune Group, Inc., a biopharmaceutical company traded on the NASDAQ under the ticker REPL. The company is conducting clinical trials of this investigational therapy across multiple oncology indications.

What phase is Vusolimogene Oderparepvec in?

Vusolimogene Oderparepvec is in Phase 3 clinical development for advanced melanoma, with an active Phase 3 trial (IGNYTE-3) currently recruiting. It is also being studied in earlier-phase trials for melanoma and angiosarcoma. The drug is investigational and not yet approved.

What clinical trials is Vusolimogene Oderparepvec in?

Vusolimogene Oderparepvec is being studied in three recruiting trials: NCT06216938 (early Phase 1 in primary melanoma), NCT06264180 (Phase 3 IGYTE-3 in advanced melanoma), and NCT06898970 (Phase 2 in angiosarcoma). These trials are enrolling patients in the United States and several European countries.

Is Vusolimogene Oderparepvec the same as RP1?

Yes, Vusolimogene Oderparepvec is also known as RP1 and is sometimes abbreviated as VO. These names refer to the same investigational drug being developed by Replimune Group for oncology indications.