A Study of the Safety and Survival of the Adoptive Transfer of Genetically Marked Syngeneic Lymphocytes in HIV-Infected Identical Twins
Médicament Data
Infections transmises par le sang+13
+ Maladies génito-urinaires
+ Maladies Génitales
Résumé
Date de début de l'étude : 1 mars 1993
Date à laquelle le premier participant a commencé l'étude.This phase I/II pilot project will evaluate the survival, tolerance, safety, and efficacy of infusions of activated, gene marked, syngeneic T lymphocytes obtained from HIV seronegative identical twins on the functional immune status of HIV infected twin recipients. T cells from each seronegative twin will be obtained by periodic apheresis, induced to polyclonal proliferation with anti-CD3 and rIL-2 stimulation, transduced with distinctive neoR retroviral vectors, and expanded 10-1,000 fold in numbers during approximately 2 weeks of culture. These marked T cells will then be infused into the seropositive twins and the survival of the uniquely marked T cell populations will be monitored by vector-specific PCR, while the recipients' functional immune status is monitored by standard in vitro and in vivo testing protocols. A total of 3 cycles of treatment may be given at intervals of 6 weeks between infusions.
Protocole
Cette section fournit des détails sur le plan de l'étude, y compris la manière dont l'étude est conçue et ce qu'elle évalue.24 participants à inclure
Nombre total de participants que l'essai clinique vise à recruter.Éligibilité
Les chercheurs recherchent des patients correspondant à une certaine description appelée critères d'éligibilité : état de santé général ou traitements antérieurs du patient.Tout sexe
Le sexe biologique des participants éligibles à s'inscrire.Volontaires sains non autorisés
Indique si les individus en bonne santé et ne présentant pas la condition étudiée peuvent participer.Conditions
Pathologie
Critères
An identical twin pair, one of whom is seropositive for HIV, the other twin seronegative, by standard ELISA and Western blot testing. Patients with Kaposi's sarcoma are eligible for this study, but must not have received any systemic therapy for KS within 4 weeks prior to entry. The diagnosis of KS must have been confirmed by biopsy. Patients must be free from serious psychological or emotional illness and able to provide written informed consent. Anticipated survival greater than 3 months. 18 years of age or older. Treatment with FDA-approved and/or expanded access antiretroviral agent(s) for patients with baseline CD4 counts below 500 cells/mm3. Patients with baseline CD4 counts above 500 cells/mm3 are eligible to receive cell therapy on this protocol, but must be treated with antiretroviral therapy if evidence of significant and persistent viral activation occurs in association with a cell infusion (a 50 percent or greater increase above baseline in any virologic parameter for at least 2 consecutive weeks). No patients with lymphoma. Willing to comply with current NIH Clinical Center guidelines concerning appropriate notification of all current sexual partners of an individual regarding his or her HIV positive sero-status and the risk of transmission of HIV infection. No recent history of substance abuse unless evidence is provided of an ongoing therapeutic intervention (i.e., medical therapy or counseling) to control such abuse. No pregnancy.
Centres d'étude
Ce sont les hôpitaux, cliniques ou centres de recherche où l'essai est conduit. Vous pouvez trouver le site le plus proche de vous ainsi que son statut.Cette étude comporte 1 site
National Institute of Allergy and Infectious Diseases (NIAID)
Bethesda, United StatesOuvrir National Institute of Allergy and Infectious Diseases (NIAID) dans Google Maps