This is a multicenter, open-label, continuation study to allow subjects who have previously received Toca 511 to continue to receive Toca FC and to allow for extended safety observations. Subjects will be seen on an every six week basis for 1 year or longer. Subjects who continue to receive Toca FC will receive the dose described in the "parent" protocol. If the Toca FC dose is adjusted for any reason, the serum concentration will be monitored. Gadolinium (Gd)-enhanced magnetic resonance imaging (MRI) scans will be performed as per standard of care. If the subject has recurred/progressed, repeat intracranial injection of Toca 511 followed by Toca FC treatment may be offered to consenting patients. Subjects who enter the study to continue Toca FC and subsequently discontinue Toca FC, and subjects who are only willing or able to perform limited testing will have viral testing alone, at the appropriate intervals. After the first year, subjects will be seen twice yearly for the next 4 years and then contacted yearly for the next 10 years. All subjects will be followed on study for at least 5 years regardless of whether they are taking Toca FC.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
65
Toca 511 consists of a purified retroviral replicating vector encoding a modified yeast cytosine deaminase (CD) gene. The CD gene converts the antifungal 5-flurocytosine (5FC) to the anticancer drug 5-FU in cells that have been infected by the Toca 511 vector
Toca FC is an extended-release formulation of flucytosine.
University of California, Los Angeles
Los Angeles, California, United States
UCSD
San Diego, California, United States
UCSF
San Francisco, California, United States
Henry Ford Health System
Detroit, Michigan, United States
JFK Medical Center Neuroscience Institute
Edison, New Jersey, United States
Hackensack University Medical Center
Hackensack, New Jersey, United States
John Theurer Cancer Center at Hackensack University
Hackensack, New Jersey, United States
Cleveland Clinic Foundation
Cleveland, Ohio, United States
Ohio State University
Columbus, Ohio, United States
University of Pittsburgh Medical Center
Pittsburgh, Pennsylvania, United States
...and 1 more locations
Long term safety follow up
This will be based on treatment emergent adverse events, clinical laboratory values and viral testing.
Time frame: From study entry up to 15 years
Overall survival in days from the initial Toca 511 administration on parent study to the date of death.
Time frame: From initial Toca 511 administration to death of last patient alive for up to 15 years.
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.