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:Recruiting
Conditions:Skin Cancer
Therapuetic Areas:Oncology
Healthy:No
Age Range:18 - Any
Updated:10/27/2018
Start Date:December 2016
Contact:Karianne Risberg Handeland, PhD
Email:karianne.risberg.handeland@targovax.com
Phone:+4790030831

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

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: prior PD1
monotherapy or prior PD1 plus ipilimumab given sequentially or concomitantly.


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 do so during or
up to 3 months after the end of protocol therapy.
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