Clinical trial · Interventional
Recombinant Vaccinia Virus Administered Intravenously in Patients With Metastatic, Refractory Colorectal Carcinoma
A Phase 1/2a Dose-escalation Study of JX 594 Administered by Multiple Intravenous (IV) Infusions Alone and in Combination With Irinotecan in Patients With Metastatic, Refractory Colorectal Carcinoma.
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The purpose of this study is to evaluate the safety, tolerability, and efficacy of JX-594 (Pexa-Vec) administered intravenously either alone or in combination with Irinotecan in colorectal carcinoma patients who are refractory to or intolerant to standard therapy.
Conditions
Conditions (2)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Colorectal Carcinoma | Colorectal Carcinoma | ONTOLOGY_EXACT | 0.98 |
| CRC | Colorectal Carcinoma | ALIAS | 0.90 |
Interventions
Interventions (2)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Irinotecan | Drug | Irinotecan | ALIAS |
| JX-594 | Biological | — | UNRESOLVED |
Design
Arms and outcomes
Arms (4)
- type
- EXPERIMENTAL
- label
- Single Agent_ Cohort 1
- description
- JX-594 administered intravenously weekly for 5 weeks followed by up to 3 additional intravenous infusion boosts. JX-594: Recombinant Vaccinia Granulocyte-Macrophage Colony-Stimulating Factor (RAC VAC GM-CSF) Cohort 1: JX-594 3 x 10\^8 plaque forming unit (pfu), Days 1, 8,15, 22, and 29
- interventionNames
- Biological: JX-594
- type
- EXPERIMENTAL
- label
- Single Agent_Cohort 2
- description
- JX-594 administered intravenously weekly for 5 weeks followed by up to 3 additional intravenous infusion boosts. JX-594: RAC VAC GM-CSF Cohort 2: JX-594 1 x 10\^9 pfu, Days 1, 8,15, 22, and 29
- interventionNames
- Biological: JX-594
- type
- EXPERIMENTAL
- label
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Histologically-confirmed, advanced metastatic colorectal cancer failed treatment with fluoropyrimidine (fluoruracil or capecitabine) and oxaliplatin based therapies or had contradictions to treatment with these drugs as determined by the investigator * Failed treatment with irinotecan * Kras mutant tumor or Kras wild-type having failed cetuximab (Erbitux) or panitumumab (Vectibix) or had contradictions to treatment * Regorafenib-naïve (have not received regorafenib) * Eastern Cooperative Oncology Group (ECOG) Performance Status 0, 1 or 2 * Measurable tumor (≥1 cm longest diameter) * Acceptable health status as determined by the investigator and blood work (Chemistry, Complete Blood Count, Coagulation) Exclusion Criteria: * Intolerant to Irinotecan (if assigned to the combination arm: Cohort 3, Cohort 4 or Combination Expansion Arm) * Treatment with ketoconazole, enzyme-inducing anticonvulsants and St. John's Wort (if assigned to combination arm) * Significant immunodeficiency due to underlying illness and/or medication * History of severe exfoliative skin condition requiring systemic therapy within the past 2 years * Clinically significant and/or rapidly accumulating ascites, pericardial and/or pleural effusions * Active cardiovascular disease, including but not limited to significant coronary artery disease (e.g., requiring angioplasty or stenting) or congestive heart failure within the preceding 12 months * Viable Centrual Nervous System (CNS) malignancy associated with clinical symptoms * Received anti-cancer therapy within 4 weeks prior to first treatment (6 weeks for mitomycin c or nitrosoureas) * Prior participation in any other research protocol involving an investigational medicinal product within 4 weeks prior to first treatment * Use of prohibited anti-viral medication, interferon/pegylated interferon (PEG-IFN) or ribavirin that cannot be discontinued within 14 days prior to any JX 594 dose * Inability to suspend treatment with anti-hypertensive medication for 48 hours prior to and 48 hours after all JX-594 treatments. * Pregnant or nursing an infant * Diagnosis of chronic inflammatory bowel disease and/or bowel obstruction.
References
Publications (0)
Data not yet available