The goal of this clinical trial is to compare participants with ovarian, fallopian tube or primary peritoneal cancer when treated with investigational product (Vigil) compared to placebo. The main question it aims to answer is "Will participants who receive treatment with Vigil have a longer time to disease recurrence versus the participants that were not given Vigil?"
This is a multicenter, randomized, double-blind, placebo-controlled, Phase 2 study of maintenance Vigil Ovarian (gemogenovatucel-T) engineered autologous tumor cells (EATC) in women with Stage IIIb, IIIc or IV high-grade papillary serous/ clear cell / endometrioid ovarian, fallopian tube or primary peritoneal cancer. Subjects will have had a minimum of 4 and a maximum of 12 doses of Vigil prepared and stored from ovarian tumor cells obtained at the time of primary surgical debulking or initial diagnostic / evaluative laparoscopy (tissue for immunotherapy manufacture must be procured prior to initiation of neoadjuvant chemotherapy). An equal number of placebo doses will be manufactured. Subjects eligible for randomization will have achieved a clinically defined complete response following primary surgery and adjuvant chemotherapy. Clinical complete response (cCR) is defined as no evidence of maligancy on chest x-ray and CT scan or MRI of the abdomen and pelvis, CA-125 antigen level ≤ units/mL, and no findings on physical examination or symptoms suggestive of active cancer. Investigational treatment must start no less than 3 weeks and no more than 8 weeks following completion of chemotherapy. Approximately 86 subjects will be randomized 1:1 to to Group A (Vigil 1.0 X 10e7 cells/injection) or Group B (placebo). Randomization will be stratified by (i) extent of surgical cytoreduction (complete/microscopic versus macroscopic residual disease) and (ii) neoadjuvant versus adjuvant chemotherapy. Participants will receive Vigil or placebo by intradermal injection once a month for at least 4 and up to a maximum of 6 doses determined by the number of doses of Vigil manufactured for that subject. Participants will be managed in an outpatient setting. Image assessment with chest x-ray and CT scan or MRI of the abdomen and pelvis will be completed every 3 months in Years 1-3, then every 6 months in Years 4 and 5 and yearly through Year 10. At the time the participant recurs, the participant will enter long term follow-up for survival status and post treatment therapies received.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
92
The bi-shRNAfurin and GMCSF Augmented Autologous Tumor Cell Vaccine, Vigil is made up of irradiated autologous tumor cells which have been electroporated ex vivo with the Vigil plasmid designed to suppress expression of both the TGFβ1 and TGFβ2 proteins while simultaneously expressing rhGMCSF protein.
To maintain placebo effect and eliminate bias due to volumetric differences, the number of Vigil doses manufactured from harvested tissue (except if below 4) will be used to guide manufacture of the same number of doses of placebo for each subject. Placebo will consist of "freeze" media \[10% DMSO (dimethyl sulfoxide; Cryoserv USP; Mylan Institutional USP), 1% Human Serum Albumin (ABO Pharmaceuticals) in Plasma-Lyte A, pH 7.4 (Baxter)\]. Depending upon randomization assignment, placebo or Vigil will be delivered in identical vials and drawn up in 'covered' syringes for intradermal injection.
Recurrence Free Survival (RFS)
Disease recurrence will be evaluated using the Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 by local and central radiology. RFS is defined as the time from randomization or from surgery/procurement to the event of disease recurrence/progression or death due to any cause.
Time frame: Time from randomization date to either the date of first recurrence or the date of death if the participant dies prior to recurrence, assessed up to 10 years.
Overall survival (OS)
OS is defined as the time from randomization to date of death due to any cause.
Time frame: OS will be evaluated from time of randomization until date of death can be obtained, assessed up to 10 years.
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
University of South Alabama Mitchell Cancer Institute
Mobile, Alabama, United States
Southern California Permanente Medical Group
Irvine, California, United States
Palo Alto Foundation Medical Group
San Francisco, California, United States
University Of Miami Sylvester Comprehensive Cancer Center
Miami, Florida, United States
Moffitt Cancer Center
Tampa, Florida, United States
Florida Cancer Specialists
West Palm Beach, Florida, United States
Georgia Cancer Center at Augusta University
Augusta, Georgia, United States
University Of Kentucky Markey Cancer Center
Lexington, Kentucky, United States
Maine Medical Center: MMP Women's Health
Scarborough, Maine, United States
Dana Farber Cancer Institute: Gynecologic Oncology
Boston, Massachusetts, United States
...and 16 more locations