Inclusion Criteria:

- Female and at least 19 years of age (or minimum legal age and competency to provide
voluntary written informed consent for study participation)

- Have received previous treatment for ovarian cancer that included a platinum based
chemotherapy regimen

- Have recurrent epithelial ovarian cancer

- Have a measurable tumor by computed tomography (CT) scan according to Response
Evaluation Criteria in Solid Tumors (RECIST)

- Have an ECOG performance status score of 0, 1, or 2

- If of childbearing potential, agree to follow an acceptable method of birth control
(e.g., abstinence, intrauterine device [IUD] or barrier method), as determined by the
investigator, for the duration of the study. Hormonal contraceptives should not be
used as the sole method of birth control.

- Have normal organ and marrow function as defined below:

- Leukocytes ≥ 3,000/µL;

- Absolute neutrophil count ≥ 1,500/µL;

- Platelets ≥ 100,000/µL;

- Total bilirubin within institutional limits;

- SGOT/SGPT ≤ 2.5 X institutional upper limit of normal (ULN);

- Creatinine within institutional normal limits; OR creatinine clearance ≥
60mL/min/1.73m2 for patients with creatinine levels above institutional normal.

- Have electrocardiogram (ECG) without clinically significant abnormality, as
determined by a qualified cardiologist

- Have the capability (caregiver) of performing IP site care while at home

Exclusion Criteria:

- A serious uncontrolled intercurrent medical illness or disorder including, but not
limited to, ongoing or active infection, abdominal surgery, autoimmune disorders,
symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia,
or psychiatric illness/social situations which would limit compliance with study
requirements

- Intraabdominal disease > 5 (five) centimeters in diameter

- Previous treatment with whole abdominal irradiation

- Intestinal dysfunction or suspected extensive adhesions from prior history or
findings at laparoscopy

- Intrahepatic disease

- Any condition/anomaly that would interfere with the appropriate placement of the IP
catheter for study drug administration

- Received investigational agents within three months prior to study drug dosing

- Receipt of any medications (in particular, systemic or topical steroids) or
substances known to affect, or with the potential to affect, the activity of EGEN-001

- Life expectancy of less than three months

- Known human immunodeficiency virus (HIV) infection

- Positive HbsAg

- Positive hepatitis C virus (HCV) serology

- Prior IP drug administration

- Prior immunotherapy for ovarian cancer

- Chemotherapy within four weeks prior to placement of IP catheter

- Radiotherapy within eight weeks prior to placement of IP catheter

- Contraindication (either allergy or impaired renal function) to injection with
contrast media for adequate evaluation of tumor size by CT scan

- Pregnant or breast feeding an infant