A Pilot Study of Sequential ONCOS-102, an Engineered Oncolytic Adenovirus Expressing GMCSF, and Pembrolizumab in Patients With Advanced or Unresectable Melanoma Progressing After Programmed Cell Death Protein 1 (PD1) Blockade

Status: Active


This is a multi center, phase I pilot study of sequential ONCOS-102 and pembrolizumab in patients with advanced or unresectable melanoma progressing after PD1 blockade. The primary objective of the study is to determine the safety of sequential treatment with ONCOS-102 followed by pembrolizumab. The protocol aims to enroll patients into two cohorts: Part I: up to 12 patients will receive sequential treatment with ONCOS-102 followed by pembrolizumab. Part II: up to 12 patients will receive an initial treatment phase with ONCOS-102 followed by a treatment phase with ONCOS-102 in combination with pembrolizumab.

Eligibility Criteria

Inclusion Criteria

  • Adults 18 years of age or older.
  • Histopathologically confirmed melanoma with an injectable cutaneous or lymph node metastasis that has progressed in the opinion of the treating investigator despite administering a Food and Drug Administration (FDA) approved anti-PD1 agent, with or without ipilimumab.
  • Eastern Cooperative Oncology Group (ECOG) performance status 0 to 1.
  • Measurable disease according to RECIST 1.1.
  • Acceptable coagulation status: international normalised ratio (INR) of blood clotting, prothrombin time and activated partial thromboplastin time within ≤1.5 x upper limit of normal (ULN).
  • Completion of local therapy, such as radiation, surgical resection, injectable immunebased therapy, or topical pro-inflammatory agent, 21 days prior to first dose of protocol therapy.
  • Adverse events from previous cancer therapies (excluding alopecia) must have recovered to grade 1 (CTCAE, most recent version). Stable grade 2 AEs such as endocrine conditions are allowed, and other chronic stable AEs may be considered on a case by case basis by the Principal Investigator.
  • Clinical stability of brain metastases for at least 4 weeks prior to first day of study therapy.
  • Acceptable liver and renal functions defined as:
  • Total bilirubin ≤1.5 x ULN (does not include patients with Gilbert's Disease)
  • Aspartate aminotransferase (AST, SGOT), alanine aminotransferase (ALT, SGPT) ≤3.0 x ULN
  • Serum creatinine ≤1.5 x ULN
  • Acceptable haematological function defined as (Patients can be transfused to meet the haemoglobin entry criteria):
  • Haemoglobin ≥9 g/dL
  • Neutrophils ≥1.5 x 10^9/L
  • Platelet count ≥75 x 10^9/L
  • Able to provide valid written informed consent.
  • All women of childbearing potential must have a negative urine or serum pregnancy test at screening.
  • All patients must agree to use barrier contraception (i.e. condom) during study treatment and for 2 months after the last virus treatment and 4 months after the last dose of chemotherapy and pembrolizumab.

Exclusion Criteria

  • A concomitant medical condition requiring receipt of a therapeutic anticoagulant that in the opinion of the treating physician cannot safely allow for therapeutic injection of ONCOS-102 and tumor biopsies. Local clinical practice can be followed with regard to holding a therapeutic anticoagulant during invasive procedures such as biopsies.
  • A concomitant medical condition that in the opinion of the treating physician would pose unreasonable additional risk to therapeutic injection of ONCOS-102.
  • Receipt of Investigational agents within 28 days prior to first dose of protocol therapy.
  • Any symptomatic autoimmune disease (such as lupus, scleroderma, Crohn's disease, ulcerative colitis) that requires administration of >10mg of prednisone equivalent. Lower dose steroids for conditions such as hypophysitis are allowed.
  • Any prior severe adverse event attributed to prior anti-PD1 therapy that, in the Principal investigator's opinion, would contraindicate pembrolizumab administration such as:
  • Grade 2 or higher pneumonitis
  • Grade 4 AST or ALT elevation
  • Grade 3 or higher colitis attributable to PD1 blockade; note that colitis attributable to ipilimumab is not excluded
  • Note: in the absence of clinical symptoms of pancreatitis, elevations of amylase or lipase are not contraindications to therapy on this trial
  • Known active infection with Hepatitis B Virus (HBV), Hepatitis C Virus (HCV), or HIV. Cleared HBV/HCV infection is not an exclusion, nor is HIV infection with cluster of differentiations 4 (CD4) counts >500 and an undetectable viral load.
  • Active bacterial, viral, or fungal infections, requiring systemic therapy apart from anti-viral maintenance therapy for HIV.
  • History of organ transplant.
  • Patients requiring chronic systemic immunosuppressants, including steroids (prednisone daily equivalent of >10 mg).
  • Brain metastases that are clinically unstable (e.g. showing unequivocal growth on imaging, requiring radiation therapy, or steroids >10mg of prednisone equivalent) within 4 weeks of first dose of study drug.
  • Known severe congenital or acquired cellular or humoral immunodeficiency such as common variable immunodeficiency.
  • Women who are pregnant or breast-feeding currently or are planning to conceive during or up to 4 months after end of protocol therapy.

Locations & Contacts


University of Maryland / Greenebaum Cancer Center
Status: Active
Contact: Cheryl Arcigal Young
Phone: 410-328-8611
Email: Cheryl.young@umm.edu

New York

New York
Memorial Sloan Kettering Cancer Center
Status: Active
Name Not Available


Fox Chase Cancer Center
Status: Active
Name Not Available

Trial Phase & Type

Trial Phase

Phase I

Trial Type


Lead Organization

Lead Organization
Targovax Oy

Trial IDs

Primary ID ONCOS C824
Secondary IDs NCI-2017-01261
Clinicaltrials.gov ID NCT03003676