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HIV Vaccine Designed for HIV Infected Adults Taking Anti-HIV Drugs

This study has been completed.
Information provided by:
National Institute of Allergy and Infectious Diseases (NIAID) Identifier:
First received: March 21, 2003
Last updated: August 23, 2007
Last verified: August 2007
This study will evaluate the safety of and immune responses to a dendritic cell vaccination for HIV-1 infection. The vaccine will be made from a patient's own cells combined with small fragments of HIV-1 (made synthetically in a laboratory). These cells will be administered back to the patient either into a vein (intravenously) or the skin (subcutaneously).

Condition Intervention Phase
HIV Infections Biological: Autologous Dendritic Cell HIV Vaccination Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Randomized Phase I Evaluation of Immunization With Highly Conserved HIV-1 Derived Peptides and Influenza Matrix Peptide in HIV-1-Infected Subjects on Highly Active Antiretroviral Therapy (HAART) Using Autologous Dendritic Cells Derived From Adherent Monocytic Precursors

Resource links provided by NLM:

Further study details as provided by National Institute of Allergy and Infectious Diseases (NIAID):

Primary Outcome Measures:
  • Safety and tolerability of peptide pulsed, autologous, cultured dendritic cells

Estimated Enrollment: 18
Study Start Date: February 2003
Detailed Description:

Untreated HIV-1 infection is characterized by progressive immune dysfunction and the development of opportunistic infections and AIDS-associated malignancies. Highly active antiretroviral therapy (HAART) has been successful in suppressing HIV replication and restoring partial immune function. However, HIV-specific immunity remains poor, as evidenced by rapid rebound of HIV-1 RNA following HAART withdrawal. Studies of individuals with acute HIV-1 infection, as well as those who are long-term nonprogressors, have suggested that robust HIV-specific immune responses are associated with control of HIV-1 viremia. Dendritic cells (DCs) are potent antigen presenting cells that may increase HIV-specific immune responses. This protocol will evaluate the use of DCs to help control HIV infection.

Patients will be randomized to receive either intravenous or subcutaneous administration of HIV antigen expressing DCs. Each subject will receive two administrations of mature DCs given 3 weeks apart. Subjects will be followed weekly for 8 weeks, then at Weeks 12, 16, 24, 36, and 48. Two doses of DCs will be evaluated (low dose: 1-3 million cells; high dose: 5-10 million cells) for safety and immune system response.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria

  • HIV-1 infection
  • Current CD4 count more than 400/mm3
  • HIV RNA less than 400 copies/ml
  • Stable combination antiretroviral therapy for at least 4 weeks prior to study entry
  • HLA A2.1 (to be tested at screening)

Exclusion criteria

  • Prior HIV vaccine
  • Systemic steroids or immunosuppressive drugs within 30 days of study entry
  • Pregnant or breastfeeding
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00056758

United States, Pennsylvania
University of Pittsburgh, Pitt Treatment Evaluation Unit
Pittsburgh, Pennsylvania, United States, 15213
Sponsors and Collaborators
National Institute of Allergy and Infectious Diseases (NIAID)
Principal Investigator: Sharon A. Riddler, MD University of Pittsburgh
  More Information Identifier: NCT00056758     History of Changes
Other Study ID Numbers: P01AI043664-04 ( U.S. NIH Grant/Contract )
Study First Received: March 21, 2003
Last Updated: August 23, 2007

Keywords provided by National Institute of Allergy and Infectious Diseases (NIAID):
Therapeutic immunization
HIV Therapeutic Vaccine
Treatment Experienced

Additional relevant MeSH terms:
HIV Infections
Lentivirus Infections
Retroviridae Infections
RNA Virus Infections
Virus Diseases
Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Immunologic Deficiency Syndromes
Immune System Diseases processed this record on September 21, 2017