Development of a New HIV Vaccine

NCT ID: NCT00051922

Last Updated: 2011-06-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

24 participants

Study Classification

INTERVENTIONAL

Study Start Date

1997-10-31

Study Completion Date

2009-06-30

Brief Summary

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The purpose of the study is to determine the safety of a new HIV vaccine and to evaluate the immune response to the vaccine. Only some HIV genes are used to make the vaccine and therefore the vaccine cannot itself cause HIV or AIDS.

Detailed Description

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HIV-1 presents several challenges to vaccine design, including: 1) high mutation rates resulting in tremendous diversity of virus envelope, the target of neutralizing antibody, such that antibody elicited to one envelope may not protect from virus with a distinct envelope; 2) envelope from infected persons differs from envelopes obtained from T-cell line cultures, the usual source of envelope for vaccines; and 3) envelope glycoprotein exists as oligomers on the virion surface, not as the monomers used in previous vaccines. This study will test a new vaccine that has been designed to meet these challenges by delivering diverse, patient-derived, oligomeric envelopes to induce multiple type-specific responses capable of recognizing native envelope on natural variants. The vaccine vector used in this vaccine trial is recombinant vaccinia virus based on the NYCDH vaccinia isolate.

Participants in this study will receive the PolyEnv1 HIV vaccine and will be followed for one year. Laboratory tests will be performed at 10 study visits to monitor the participants' immunologic response and assess the safety of the vaccine. Patients will also have numerous HIV tests throughout the study period.

Conditions

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HIV Infections

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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1

Participants will receive vaccine and will be followed for 1 year

Group Type EXPERIMENTAL

PolyEnv1

Intervention Type BIOLOGICAL

Recombinant vaccinia virus vaccine

Interventions

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PolyEnv1

Recombinant vaccinia virus vaccine

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* HIV-1 negative
* Availability for one year of follow-up
* No evidence of previous smallpox vaccination
* Acceptable methods of contraception

Exclusion Criteria

* Immunosuppressive or chronic illness
* Medical or psychological conditions which could affect compliance
* High risk for HIV infection
* Live attenuated vaccines within 60 days
* Experimental agents within 30 days
* Blood products within past 6 months
* Eczema
* Pregnant or lactating women
* Household contact with immunodeficient person, pregnant woman, or child less than 12 months of age
* Allergy to gentamicin
Minimum Eligible Age

18 Years

Maximum Eligible Age

32 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Institute of Allergy and Infectious Diseases (NIAID)

NIH

Sponsor Role lead

Responsible Party

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St. Jude's Children's Hospital

Principal Investigators

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Patricia Flynn, MD

Role: PRINCIPAL_INVESTIGATOR

Associate Member

Julia L. Hurwitz, PhD

Role: PRINCIPAL_INVESTIGATOR

Member

Locations

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St. Jude Children's Research Hospital

Memphis, Tennessee, United States

Site Status

Countries

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United States

References

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Brown SA, Stambas J, Zhan X, Slobod KS, Coleclough C, Zirkel A, Surman S, White SW, Doherty PC, Hurwitz JL. Clustering of Th cell epitopes on exposed regions of HIV envelope despite defects in antibody activity. J Immunol. 2003 Oct 15;171(8):4140-8. doi: 10.4049/jimmunol.171.8.4140.

Reference Type BACKGROUND
PMID: 14530336 (View on PubMed)

Caver TE, Lockey TD, Srinivas RV, Webster RG, Hurwitz JL. A novel vaccine regimen utilizing DNA, vaccinia virus and protein immunizations for HIV-1 envelope presentation. Vaccine. 1999 Mar 17;17(11-12):1567-72. doi: 10.1016/s0264-410x(98)00355-7.

Reference Type BACKGROUND
PMID: 10195794 (View on PubMed)

Lockey TD, Slobod KS, Caver TE, D'Costa S, Owens RJ, McClure HM, Compans RW, Hurwitz JL. Multi-envelope HIV vaccine safety and immunogenicity in small animals and chimpanzees. Immunol Res. 2000;21(1):7-21. doi: 10.1385/IR:21:1:7.

Reference Type BACKGROUND
PMID: 10803879 (View on PubMed)

Rencher SD, Lockey TD, Srinivas RV, Owens RJ, Hurwitz JL. Eliciting HIV-1 envelope-specific antibodies with mixed vaccinia virus recombinants. Vaccine. 1997 Feb;15(3):265-72. doi: 10.1016/s0264-410x(96)00185-5.

Reference Type BACKGROUND
PMID: 9139484 (View on PubMed)

Rencher SD, Slobod KS, Dawson DH, Lockey TD, Hurwitz JL. Does the key to a successful HIV type 1 vaccine lie among the envelope sequences of infected individuals? AIDS Res Hum Retroviruses. 1995 Sep;11(9):1131-3. doi: 10.1089/aid.1995.11.1131. No abstract available.

Reference Type BACKGROUND
PMID: 8554911 (View on PubMed)

Richmond JF, Mustafa F, Lu S, Santoro JC, Weng J, O'Connell M, Fenyo EM, Hurwitz JL, Montefiori DC, Robinson HL. Screening of HIV-1 Env glycoproteins for the ability to raise neutralizing antibody using DNA immunization and recombinant vaccinia virus boosting. Virology. 1997 Apr 14;230(2):265-74. doi: 10.1006/viro.1997.8478.

Reference Type BACKGROUND
PMID: 9143282 (View on PubMed)

Slobod KS, Bonsignori M, Brown SA, Zhan X, Stambas J, Hurwitz JL. HIV vaccines: brief review and discussion of future directions. Expert Rev Vaccines. 2005 Jun;4(3):305-13. doi: 10.1586/14760584.4.3.305.

Reference Type BACKGROUND
PMID: 16026246 (View on PubMed)

Slobod KS, Coleclough C, Brown SA, Stambas J, Zhan X, Surman S, Jones BG, Zirkel A, Freiden PJ, Brown B, Sealy R, Bonsignori M, Hurwitz JL. Clade, Country and Region-specific HIV-1 Vaccines: Are they necessary? AIDS Res Ther. 2005 Apr 28;2(1):3. doi: 10.1186/1742-6405-2-3.

Reference Type BACKGROUND
PMID: 15860130 (View on PubMed)

Surman S, Lockey TD, Slobod KS, Jones B, Riberdy JM, White SW, Doherty PC, Hurwitz JL. Localization of CD4+ T cell epitope hotspots to exposed strands of HIV envelope glycoprotein suggests structural influences on antigen processing. Proc Natl Acad Sci U S A. 2001 Apr 10;98(8):4587-92. doi: 10.1073/pnas.071063898. Epub 2001 Apr 3.

Reference Type BACKGROUND
PMID: 11287644 (View on PubMed)

Zhan X, Slobod KS, Surman S, Brown SA, Lockey TD, Coleclough C, Doherty PC, Hurwitz JL. Limited breadth of a T-helper cell response to a human immunodeficiency virus envelope protein. J Virol. 2003 Apr;77(7):4231-6. doi: 10.1128/jvi.77.7.4231-4236.2003.

Reference Type BACKGROUND
PMID: 12634380 (View on PubMed)

Slobod KS, Lockey TD, Howlett N, Srinivas RV, Rencher SD, Freiden PJ, Doherty PC, Hurwitz JL. Subcutaneous administration of a recombinant vaccinia virus vaccine expressing multiple envelopes of HIV-1. Eur J Clin Microbiol Infect Dis. 2004 Feb;23(2):106-10. doi: 10.1007/s10096-003-1075-3. Epub 2004 Jan 20.

Reference Type RESULT
PMID: 14735404 (View on PubMed)

Related Links

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http://www.stjude.org

Click here for more information about St. Jude Children's Research Hospital.

Other Identifiers

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P01AI045142

Identifier Type: NIH

Identifier Source: secondary_id

View Link

P01AI045142

Identifier Type: NIH

Identifier Source: org_study_id

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