This Phase 2 study will evaluate the efficacy and safety of PRGN-2009 in combination with pembrolizumab in patients with pembrolizumab-resistant recurrent or metastatic cervical cancer.

This is a Phase 2 study of PRGN-2009 in patients with recurrent or metastatic cervical cancer who are pembrolizumab resistant. Patients meeting all eligibility criteria who consent to participate in the study will receive PRGN-2009 (5 x 10^11 PU, subcutaneous injection) every 3 weeks for three administrations, thereafter every 6 weeks, plus pembrolizumab (400 mg IV) every 6 weeks.

Inclusion Criteria:

• Age 18 years and older.
• Recurrent or metastatic cervical cancer (histologically or cytologically confirmed)
• Must have been treated with pembrolizumab, either as monotherapy or in combination, for atleast 6 weeks.
• Subjects must have histologically or cytologically confirmed HPV positive disease
• Measurable disease that can be accurately measured by RECIST v1.1 criteria
• Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
• Life expectancy ≥ 12 weeks from the time of enrollment.
• Must have adequate organ function
• Negative serum pregnancy test. Women of child-bearing potential (WOCBP) must agree to use adequate contraception prior to study entry and for at least 6 months following completion of study treatment.
• All patients must have the ability to understand and willingness to sign a written informed consent.

Exclusion Criteria:

• Prior chemotherapy, targeted therapy within 14 days; monoclonal antibody within 4 weeks; unresolved AEs.
• Immunodeficiency, active autoimmune disease on immunosuppression, or immunosuppressive therapy within 7 days. HIV eligible with disease control.
• Active hepatitis B (HBsAg+) or hepatitis C (HCV RT-PCR+) within 30 days of enrollment.
• History of non-infectious pneumonitis or interstitial lung disease.
• History of endocrine autoimmune disease (exceptions: treated Graves' disease; hypothyroidism on replacement).
• Live vaccine within 30 days prior to first dose.
• Patients with presence of other active malignancy within 1 year prior to study entry
• Known Central Nervous System (CNS) disease
• Has severe hypersensitivity (≥Grade 3) to pembrolizumab and/or any of its excipients.
• Known history of active tuberculosis (TB, Bacillus tuberculosis).
• Pregnant and lactating women are excluded from this study.
• Patients with a history of solid organ transplant.
• Patients currently participating in a study of an investigational agent or have used an investigational device within 4 weeks prior to the first dose of study treatment.
• Patients, who in the opinion of the investigator, may not be able to comply with the monitoring requirements of the study.