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A Continuation Protocol for Patients Previously Enrolled in a Study of Toca 511

Study Purpose

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.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

No
Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.


An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.


Searching Both is inclusive of interventional and observational studies.

Interventional
Eligible Ages 18 Years and Over
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

  • - Informed Consent Form.
  • - Subject received Toca 511 in prior study.
  • - Subject is willing to abide by protocol.

Exclusion Criteria:

- Subject has history of allergy or intolerance to flucytosine

Trial Details

Trial ID:

This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.

NCT04327011
Phase

Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Phase 1
Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

Tocagen Inc.
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Asha Das, MDMichael Vogelbaum, MD, PhD, NS
Principal Investigator Affiliation Tocagen Inc.The Cleveland Clinic
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Industry
Overall Status Terminated
Countries United States
Conditions

The disease, disorder, syndrome, illness, or injury that is being studied.

Glioblastoma Multiforme, Astrocytoma, Gliomas, Malignant
Arms & Interventions

Arms

Experimental: Experimental

Single arm Toca 511 vector/5-FC prodrug

Interventions

Biological: - Toca 511 vector

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

Drug: - Toca FC • Flucytosine • 5-FC • 5-Fluorocytosine

Toca FC is an extended-release formulation of flucytosine.

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

University of California, Los Angeles, Los Angeles, California

Status

Address

University of California, Los Angeles

Los Angeles, California, 90095

UCSD, San Diego, California

Status

Address

UCSD

San Diego, California, 92093

UCSF, San Francisco, California

Status

Address

UCSF

San Francisco, California, 94143

Henry Ford Health System, Detroit, Michigan

Status

Address

Henry Ford Health System

Detroit, Michigan, 48202

Edison, New Jersey

Status

Address

JFK Medical Center Neuroscience Institute

Edison, New Jersey, 08820

Hackensack University Medical Center, Hackensack, New Jersey

Status

Address

Hackensack University Medical Center

Hackensack, New Jersey, 07601

Hackensack, New Jersey

Status

Address

John Theurer Cancer Center at Hackensack University

Hackensack, New Jersey, 07601

Cleveland Clinic Foundation, Cleveland, Ohio

Status

Address

Cleveland Clinic Foundation

Cleveland, Ohio, 44195

Ohio State University, Columbus, Ohio

Status

Address

Ohio State University

Columbus, Ohio, 43210

University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania

Status

Address

University of Pittsburgh Medical Center

Pittsburgh, Pennsylvania, 15232

Swedish Neuroscience Institute, Seattle, Washington

Status

Address

Swedish Neuroscience Institute

Seattle, Washington, 98122