Disease: Human Immunodeficiency Virus Infection, HIV, (NCT01252641)

Disease info:

HIV stands for human immunodeficiency virus. It harms the immune system by destroying the white blood cells that fight infection. This puts at risk for serious infections and certain cancers.

AIDS stands for acquired immunodeficiency syndrome. It is the final stage of infection with HIV. Not everyone with HIV develops AIDS.

Frequency:
Worldwide, there were about 1.7 million new cases of HIV in 2018. About 37.9 million people were living with HIV around the world in 2018, and 23.3 million of them were receiving medicines to treat HIV, called antiretroviral therapy (ART).
Official title:
A Phase 1/2, Open Label, Single Infusion Study of Autologous T-Cells Genetically Modified at the CCR5 Gene by Zinc Finger Nucleases (SB-728-T) in HIV Infected Subjects
Who:

Study Director:Winson Tang, M.D. Sangamo Therapeutics Inc.

Partners:
Locations:

United States, California

United States, Florida

Study start:
Nov. 1, 2010
Enrollment:
21 participants
Gene editing method:
ZFN-Zinc Finger Nucleases
Gene:
CCR5
Vector:
No information
IndicatorIndicator
IND Enabling Pre-clinical
Phase I Safety
Phase II Safety and Dosing
Phase III Safety and Efficacy

Status: Completed

Description

This research study is being carried out to study a new way to possibly treat human immunodeficiency virus (HIV). The agent is called SB-728-T which are CD4+ T-cells obtained from an individual that are genetically modified at the CCR5 gene by Zinc Finger Nucleases. The CCR5 gene is required for certain types of HIV to enter into and infect T-cells. T cells are one of the white blood cells used by the body to fight HIV. The most important of these are called "CD4+ T-cells"

Some people are born without the CCR5 gene on their T-Cells. These people remain healthy and are resistant to infection with HIV. Other people have a low number of CCR5 genes on their T-cells and their HIV disease is less severe and is slower to cause disease (AIDS).

The purpose of this research study is to find out whether SB-728-T is safe to give to humans and find out how this affects HIV.

Laboratory studies have shown that when CD4+ T-cells are modified with Zinc Finger Nucleases SB-728, HIV is prevented from killing the CD4+ T-cells. On the basis of these laboratory results, there is the potential that this may work in humans infected with HIV and improve their immune system by allowing their CD4+ T-cells to survive longer

The new treatment to be studied will involve removing white blood cells from the blood that contain CD4+ T-cells. The extracted CD4+ T-cells are then genetically modified by the Zinc finger Nucleases to be resistant to infection by removing the CCR5 gene from the surface of the CD4+ T-cell where HIV enters the cell. Additional genetically modified cells are manufactured and then re-infused back into the individual. Researchers hope that these genetically modified cells will be resistant to infection by HIV and will be able to reproduce additional resistant CD4+ T-cells in your body.

Last updated: May. 18, 2020