Inclusion Criteria:

          1. Signed, informed consent

          2. Age 18 or more years

          3. Pathologically confirmed low-grade Ta urothelial carcinoma (UC) of the urinary bladder

          4. NMIBC with one solitary measurable tumor at the start of study, measuring ≥ 5 mm and ≤
             15 mm in greatest diameter (up to 4 additional low-grade Ta lesions, each measuring no
             more than 15 mm may be removed at screening provided a single lesion remains)

          5. Treatment-naïve or failed one previous regimen of intravesical therapy (BCG or
             chemotherapy)

          6. If recurrent disease, then more than 6 months from prior resection, more than 3 months
             from completion of last intravesical therapy with BCG, and more than 6 weeks from
             completion of last therapeutic intravesical therapy with chemotherapy

          7. If previously treated, recovered from prior treatment-related toxicity to ≤ Grade 1

          8. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 116

          9. Absolute neutrophil count (ANC) ≥ 1,500/mm3

         10. Platelet count ≥ 100,000/mm3

         11. Total bilirubin ≤ 1.5 x upper limit of normal (ULN), or ≤ 3 x ULN in subjects with
             Gilberts disease

         12. Serum creatinine ≤ 1.5 x ULN or creatinine clearance ≥ 30 mL/min

         13. Serum aspartate transaminase (AST) and serum alanine transaminase (ALT) ≤ 2.5 x ULN

         14. Willingness to participate in collection of pharmacokinetic samples

         15. Women of childbearing potential must have a negative serum pregnancy test.

         16. All subjects of childbearing potential must be willing to use effective contraception
             while on treatment and for 3 months after the last dose of VAX014

        Exclusion Criteria:

          1. Additional papillary disease at screening (in addition to the solitary low-grade Ta
             lesion detailed in the inclusion criteria) that

               1. Consist of 6 or more lesions

               2. Consists of any lesion with a maximal diameter of greater than 15 mm

          2. Confirmed or suspected perforated bladder

          3. History of difficult catheterization that in the opinion of the investigator will
             prevent administration of VAX014

          4. Presence or history of any high-grade urothelial cancer (including CIS) or high-grade
             urine cytology

          5. Intravesical chemo-or biological therapy within 6 months of first administration of
             VAX014

          6. UC of the ureters or urethra

          7. History of interstitial cystitis

          8. History of radiation to the pelvis

          9. History of vesicoureteral reflux or an indwelling urinary stent

         10. Other known active cancer(s) likely to require treatment or interfere with study
             objectives over the next two (2) years

         11. Active, uncontrolled bacterial, viral, or fungal infection(s) requiring systemic
             therapy

         12. Known HIV, Hepatitis B, or Hepatitis C infection

         13. Significant cardiovascular risk (e.g., coronary stenting within 8 weeks, myocardial
             infarction within 6 months)

         14. Major surgery other than diagnostic surgery within 4 weeks of first administration of
             VAX014

         15. Pregnant or currently breast-feeding

         16. Psychiatric illness/social situations that would interfere with compliance with study
             requirements

         17. Presence of any sessile appearing tumor suspected of being invasive or high-grade