Viewing Study NCT00004988



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Last Modification Date: 2024-10-26 @ 9:04 AM
Study NCT ID: NCT00004988
Status: COMPLETED
Last Update Posted: 2008-03-04
First Post: 2000-03-18

Brief Title: Treatment of Patients With Cancer With Genetically Modified Salmonella Typhimurium Bacteria
Sponsor: National Cancer Institute NCI
Organization: National Institutes of Health Clinical Center CC

Study Overview

Official Title: A Phase I Trial of a Live Genetically Modified Salmonella Typhimurium VNP20009 for the Treatment of Cancer by Intravenous Administration
Status: COMPLETED
Status Verified Date: 2002-10
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: This study will examine the safety and toxicities of intravenously administering a genetically modified type of Salmonella bacteria VNP20009 and its impact on tumor growth in advanced or metastatic cancer cancer that has spread from the primary site The first patients in the study will be given the smallest dose of VNP20009 and those who enter later will receive increasingly larger doses This will be done to determine the maximum dose that can be given without serious side effects

Normally Salmonella bacteria ingested in food or water can cause diarrhea or more severe illness The bacteria in this study are altered genetically so they can be injected through a vein and circulate in the blood with less likelihood of causing side effects It is believed that the bacteria will travel in the blood to the tumor and infect it In studies of mice tumor growth slowed in animals whose tumors were infected with VNP0009

Patients with advanced or metastatic cancer 18 years of age or older whose disease is not responding to standard treatment or for which there is no treatment may be eligible for this study Candidates will undergo a medical history and physical examination including blood tests scans X-rays electrocardiogram and urine stool and blood cultures

Study participants will be admitted to the hospital for 2 to 4 days On day 1 they will receive the first dose of VNP0009 infused over a 30-minute period through an intravenous catheter a small plastic tube inserted into a vein Blood will be drawn every day to determine if the bacteria are still in the body After discharge patients will return to the hospital on days after approximately 1-2 weeks and again after 4-5 weeks for additional blood tests to measure levels of the bacteria and for collection of blood urine and stool samples Patients whose tumors are on or just beneath the skin may be asked to have one or two tumors removed surgically

Patients will have tests after approximately 4-5 weeks including CTs and X-rays to determine the size and extent of the tumor Patients whose tumor remained the same size or smaller than before starting treatment and whose side effects were acceptable will be offered a second treatment cycle Those whose tumor grew during treatment will be taken off the study Patients remaining in the study will begin the second cycle on approximately day 36 Tumor growth will be evaluated again between days 64 and 70 and a third cycle will be offered to patients whose tumors have remained stable or have shrunk Patients may have up to 12 treatment cycles as long as evaluations continue to show the tumor is stable or shrinking Completing all 12 cycles takes about 13 months Patients will continue to be evaluated after treatment ends if they agree to continued follow-up

Patients must follow health precautions to prevent infecting others with Salmonella bacteria as long as they themselves remain infected These include for example stringent hand washing practices and avoiding contact with people with weakened immune systems All the precautions will be explained to the study participants

Patients who leave the study must take antibiotic therapy to rid the body of any remaining bacteria They will return for urine stool and blood cultures 30 days after the start of antibiotics and may undergo three types of scans to look for sites of infection Treatment will be given as needed
Detailed Description: Patients with metastatic cancer will receive the intravenous injection of live genetically modified Salmonella typhimurium This bacteria has been genetically modified to alter its pathogenicity and to attempt to increase its localization to sites of growing cancer Cohorts of patients will receive increasing doses of the bacteria to establish the maximum tolerated dose

Study Oversight

Has Oversight DMC: None
Is a FDA Regulated Drug?: None
Is a FDA Regulated Device?: None
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: None
Secondary IDs
Secondary ID Type Domain Link
00-C-0098 None None None