Safety Study of Adenovirus Vector Engineered to Express hIL-12 in Combination With Activator Ligand to Treat Melanoma

Inclusion Criteria:

* Males or females of all races ≥ 18 years of age, who have provided written informed consent prior to completing any study specific procedure.
* Unresectable Stage III or Stage IV melanoma arising from any site other than ocular melanoma.
* A minimum of 2 accessible nonvisceral lesions (shortest diameter ≥1 cm) or palpable tumor-involved lymph nodes (shortest diameter ≥1.5 cm).
* ECOG performance status of 0 or 1 (Appendix 1).
* Adequate bone marrow, liver, and renal function.
* An expected survival of at least approximately 6 months.
* Male and female subjects must agree to use a highly reliable method of birth control (expected failure rate less than 5% per year) from the screening visit through 28 days after the last dose of study drug.

Exclusion Criteria:

* Any prior anti-cancer therapy or investigational agent within 28 days prior to the first dose of study drug. (NOTE: For the expansion cohort ONLY, if subjects received ipilimumab, a 90-day washout period since last dose of ipilimumab is required. If subjects received other immunomodulating therapies (eg, anti-PD1 antibodies), the medical monitor should be contacted and an evaluation will be made.)
* Clinically significant infection requiring systemic antibacterial, antifungal, or antiviral therapy within 2 weeks of the first dose of study drug.
* History of HIV infection.
* Active autoimmune disease requiring steroids (\>10 mg prednisone or comparable) or other immunosuppressive therapy (e.g., methotrexate, etc.).
* Documented symptomatic brain metastases. Screening for brain lesions by CT or MRI is not required for all potential subjects; however, if there are any neurological signs or symptoms consistent with brain metastases, then a brain CT or MRI should be performed as clinically indicated.
* Any medications that induce, inhibit or are substrates of CYP450 3A4 within 7 days prior to the first dose of study drug.
* Prior history of hematopoietic stem cell transplant or organ allograft.
* Other concurrent clinically active malignant disease, with the exception of other cancers of the skin.
* Females who are nursing or pregnant.
* Subjects who have a history of hypersensitivity that may relate to any component of the study drugs, e.g. to benzoic acid since INXN-1001 contains two benzene rings.
* Unstable or clinically significant concurrent medical condition that would, in the opinion of the investigator, jeopardize the safety of a subject and/or their compliance with the protocol.