CI

At a glance

ClinicalIndex Comparison Record
Phase 1Completed· 95 enrolled / 95 target
Drug / intervention
Pexastimogene Devacirepvec (Pexa-Vec) +1 morebiological
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03294083
NCT03294083Phase 1CompletedMonitor (1.0/mo)Completion was 40mo ago

A Phase 1b/2a Dose-escalation and Safety/Efficacy Evaluation Study of Pexa-Vec (Thymidine Kinase-Deactivated Vaccinia Virus Plus GM-CSF) in Combination With Cemiplimab (REGN2810; Anti-PD-1) in Patients With Metastatic or Unresectable Renal Cell Carcinoma (RCC)

SillaJen, Inc.·interventional·Posted Sep 26, 2017·Updated Jun 18, 2026

In Brief

A Phase 1 clinical trial evaluating Pexastimogene Devacirepvec (Pexa-Vec) and Cemiplimab for Renal Cell Carcinoma. Completed, enrolled 95 participants across 21 sites in 3 countries.

Signals

Enrolling slower than its timeline implies

Detailed Summary

This is a Phase 1b/2a, open-label, multi-center, dose-escalation and safety/efficacy evaluation trial of Pexa-Vec plus Cemiplimab in patients with metastatic or unresectable renal cell carcinoma (RCC). The trial consists of a dose-escalation stage, where the maximum feasible dose of Pexa-Vec in combination with Cemiplimab will be determined, followed by an expansion stage. During the expansion patients will receive Cemiplimab alone or in combination with Pexa-Vec, which will be administered either through intravenous (IV) or intratumoral (IT) injection.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesAustralia, South Korea, United States

Timeline

Phase 1CompletedFinished
201820192020202120222023202420252026
First PostedSep 26, 2017
Enrollment StartJun 19, 2018
Primary CompletionFeb 16, 2023
TodayJul 2, 2026
Enrollment to primary: 4.7 yearsPosted 8.8 years ago

Arms & Interventions

Part 1, Dose escalation 3 x 10^8 pfuexperimental

Pexa-Vec will be administered via IV infusion at a dose of 3 x 10\^8 pfu once per week for 4 treatments. Based on the occurrence of dose-limiting toxicities, patients may subsequently be enrolled to receive Pexa-Vec on the same schedule at a dose of 3 x 10\^8 pfu. Cemiplimab will be administered via IV infusion every 3 weeks.

Biological: Pexastimogene Devacirepvec (Pexa-Vec)Biological: Cemiplimab
Part 1, Dose escalation 1 x 10^9 pfuexperimental

Pexa-Vec will be administered via IV infusion at a dose of 1 x 10\^9 pfu once per week for 4 treatments. Based on the occurrence of dose-limiting toxicities, patients may subsequently be enrolled to receive Pexa-Vec on the same schedule at a dose of 1 x 10\^9 pfu.

Biological: Pexastimogene Devacirepvec (Pexa-Vec)Biological: Cemiplimab
Part 2-Arm A, Pexa-Vec (IT) and Cemiplimabexperimental

Pexa-Vec will be administered via IT (intratumoral) injection every 2 weeks for 3 treatments. Cemiplimab will be administered via IV infusion every 3 weeks. Pexastimogene Devacirepvec (Pexa-Vec): Pexa-Vec is a vaccinia virus based oncolytic immunotherapy designed to stimulate the immune system following infection and replication within tumor cells Cemiplimab: Cemiplimab is a monoclonal antibody to Programmed Death-1 (PD-1)

Biological: Pexastimogene Devacirepvec (Pexa-Vec)Biological: Cemiplimab
Part 2-Arm B, Cemiplimabexperimental

Cemiplimab will be administered via IV infusion every 3 weeks. At disease progression, Pexa-Vec will be administered via IT (intratumoral) injection every 2 weeks for 3 treatments. Cemiplimab will continue every 3 weeks. Pexastimogene Devacirepvec (Pexa-Vec): Pexa-Vec is a vaccinia virus based oncolytic immunotherapy designed to stimulate the immune system following infection and replication within tumor cells Cemiplimab: Cemiplimab is a monoclonal antibody to Programmed Death-1 (PD-1)

Biological: Pexastimogene Devacirepvec (Pexa-Vec)Biological: Cemiplimab
Part 2-Arm C, Pexa-Vec (IV) and Cemiplimabexperimental

Pexa-Vec will be administered via IV infusion once per week for 4 treatments. Cemiplimab will be administered via IV infusion every 3 weeks. Pexastimogene Devacirepvec (Pexa-Vec): Pexa-Vec is a vaccinia virus based oncolytic immunotherapy designed to stimulate the immune system following infection and replication within tumor cells Cemiplimab: Cemiplimab is a monoclonal antibody to Programmed Death-1 (PD-1)

Biological: Pexastimogene Devacirepvec (Pexa-Vec)Biological: Cemiplimab
Part 2-Arm D, Pexa-Vec (IV) and Cemiplimabexperimental

Pexa-Vec will be administered via IV infusion once per week for 4 treatments. Cemiplimab will be administered via IV infusion every 3 weeks. Pexastimogene Devacirepvec (Pexa-Vec): Pexa-Vec is a vaccinia virus based oncolytic immunotherapy designed to stimulate the immune system following infection and replication within tumor cells Cemiplimab: Cemiplimab is a monoclonal antibody to Programmed Death-1 (PD-1)

Biological: Pexastimogene Devacirepvec (Pexa-Vec)Biological: Cemiplimab

Interventions

Pexastimogene Devacirepvec (Pexa-Vec)biological

Pexa-Vec is a vaccinia virus based oncolytic immunotherapy designed to stimulate the immune system following infection and replication within tumor cells

Cemiplimabbiological

Cemiplimab is a monoclonal antibody to Programmed Death-1 (PD-1)