- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT00110578
Safety and Effectiveness of Immunotherapy With Autologous HIV-Specific CD8 Cells in HIV Infected Adults
Safety and Antiviral Efficacy of Cellular Adoptive Immunotherapy With Autologous CD8+ HIV-Specific Cytotoxic T Cells Combined With Interleukin-2 For HIV Seropositive Individuals
Effective, suppressive treatment for HIV infected patients can be a major challenge because HIV progressively destroys their immune systems. CD8 cells isolated from a patient's blood and grown in large numbers in the laboratory may increase a patient's immune system response to HIV. The purpose of this study is to determine if CD8 cells will provide effective antiviral activity against HIV when transplanted back in large numbers into HIV infected patients.
Study hypothesis: There are specific cells in the immune system that recognize and can kill HIV-infected cells.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
The function of CD8 cells in the human body is to kill infected target cells, such as HIV infected cells. Recent data suggest that intravenous administration of HIV-specific CD8 cells is safe, augments host immunity, and mediates a dramatic reduction in circulating HIV-infected CD4 cells. However, the observed antiviral effects are transient, and HIV infected CD4 cells re-emerge as the number of self CD8 cells declines. Augmenting CD8 cell response to HIV by immunotherapy with CD8 cells may be a useful addition to drug therapy if the infused CD8 cells can survive long-term in vivo. Administration of interleukin-2 (also known as aldesleukin or IL-2), a naturally occurring cytokine, has been proposed as a way to maintain the number of CD8 cells. This study will evaluate the safety and efficacy of immunotherapy with HIV-specific CD8 cells in HIV infected patients. Additionally, this study will determine if aldesleukin injections improve the persistence of self CD8 transplants and the duration of antiviral activity without severe toxicity.
This study will last 18 months. CD8 cells will be isolated from the blood of HIV infected patients; the cells will be allowed to multiply in the laboratory, and patients will receive back their CD8 cells. Patients will receive up to 3 infusions of self CD8 cells. On Day 0, patients will receive their first infusion of CD8 cells. On Day 7, patients will receive their second infusion of CD8 cells; this infusion will be followed by 14 days of aldesleukin administered daily by injection under the skin. Patients with less than a Grade 2 toxicity will receive a third infusion of CD8 cells; this infusion will be followed by 21 days of aldesleukin.
Tipo di studio
Iscrizione
Fase
- Fase 1
Contatti e Sedi
Luoghi di studio
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Washington
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Seattle, Washington, Stati Uniti, 98109
- Fred Hutchinson Cancer Research Center
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Seattle, Washington, Stati Uniti, 98122
- University of Washington (UW)
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria for All Participants:
- HIV infected
- CD4 count greater than 200 cells/mm3 at study entry
- Absolute neutrophil count greater than 1000 cells/mm3
- Willing to take Pneumocystis prophylaxis, if indicated
- Willing to comply with study requirements
- Willing to forgo other experimental therapy during the 26-week study period
- Willing to use acceptable forms of contraception
Inclusion Criteria for Treatment-Experienced Participants:
- Currently receiving treatment with an FDA-approved or expanded access antiretroviral agent (or combinations thereof) at a stable dose for at least 24 weeks prior to study entry
Inclusion Criteria for Treatment-Naive Participants:
- Have not received antiretroviral therapy for 6 months prior to study entry
Exclusion Criteria:
- Treatment with other immunomodulatory therapies (interferon, HIV vaccines, intravenous immunoglobulin), pentoxifylline, cancer chemotherapy, radiation therapy, or other investigational agents
- Past or present infection with mycobacterium avium complex, toxoplasmosis, cryptococcus, or cytomegalovirus (including retinitis)
- Active opportunistic infection at study entry or serious systemic infection requiring chronic maintenance or suppressive therapy
- Lymphoma, symptomatic visceral Kaposi's sarcoma, or any malignancy expected to require systemic therapy
- Serious psychological or emotional disorder that would affect ability to comply with study requirements or that would be exacerbated by protocol participation
- Alcohol or drug use, abuse, or dependence that, in the opinion of the investigator, would interfere with the study
- Estimated life expectancy of less than 4 months
- Abnormal neurocognitive examination
- Significant abnormality on electrocardiogram or chest radiograph
- Inability to generate CD8+ HIV-specific cytotoxic T cell clones
- Previously treated in FHCRC Protocol #827.1
- Pregnancy or breastfeeding
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Non randomizzato
- Modello interventistico: Assegnazione di gruppo singolo
- Mascheramento: Nessuno (etichetta aperta)
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
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To determine the safety of administering CD8+ HIV-specific CTL clones followed by subcutaneous IL-2 (Proleukin, Chiron) daily for up to 21 days
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To identify a regimen of IL-2 that will improve the in vivo persistence and function of adoptively transferred CD8+ HIV-specific CTL
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Misure di risultato secondarie
Misura del risultato |
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To determine whether the administration of IL-2 prolongs the antiviral activity of transferred CD8+ HIV-specific CTL
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To determine if IL-2 promotes the accumulation of adoptively transferred CD8+ HIV-specific CTL in lymph nodes
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Collaboratori e investigatori
Investigatori
- Investigatore principale: Stanley Riddell, MD, Fred Hutchinson Cancer Center
Pubblicazioni e link utili
Studiare le date dei record
Studia le date principali
Inizio studio
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
- Infezioni da virus a RNA
- Malattie virali
- Infezioni
- Infezioni a trasmissione ematica
- Malattie trasmissibili
- Malattie sessualmente trasmissibili, virali
- Malattie trasmesse sessualmente
- Infezioni da lentivirus
- Infezioni da retroviridae
- Sindromi da deficit immunologico
- Malattie del sistema immunitario
- Infezioni da HIV
- Agenti antinfettivi
- Agenti antivirali
- Agenti anti-HIV
- Agenti antiretrovirali
- Agenti antineoplastici
- Aldesleukin
Altri numeri di identificazione dello studio
- 5U01AI054334-02 (Sovvenzione/contratto NIH degli Stati Uniti)
- AI54334
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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