CD4 Based Therapeutic Vaccine for HIV

Award Information
Agency:
Department of Health and Human Services
Branch
n/a
Amount:
$99,983.00
Award Year:
1995
Program:
SBIR
Phase:
Phase I
Contract:
1 R43 AI36029-01A1,
Award Id:
29086
Agency Tracking Number:
29086
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
35 West Watkins Mill Road, Gaithersburg, MD, 20878
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
David Cassatt
() -
Business Contact:
() -
Research Institute:
n/a
Abstract
An effective therapeutic vaccine for HIV should be capable of reducing viral load and spread of infprevent the onset of AIDS. In an SIV-rhesus macaque model, immunization with a recombinant, solubleCD4 molecule (rsCD4) induced an anti-CD4 response that reduced viral load and rendered PBLs from theanimals resistant to infection with SIV. This anti-viral activity was found in the IgG fraction of tI clinical study HIV-infected individuals immunized with human rsCD4 in IFA developed an anti-CD4 reachieved were insufficient to prevent spread of HIV. These results suggest that B cell tolerance toovercome. This application will focus on developing strategies for enhancing immune responses to rsCmodel tolerant to human CD4. In particular, a series of vaccines composed of vaccines composed of rhprotein conjugates of CD4-derived peptide conjugates formulated in different adjuvants will be evaluenhance T helper and B cell responses in a mouse model expressing a human CD4 transgene. This studyselection of a more immunogenic rsCD4 formulation for clinical study.

* information listed above is at the time of submission.

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