Dermal HIV-1 Immunization During Anti-retroviral Therapy Followed by Repeated Treatment Interruptions (Vac09)
8 giugno 2010 aggiornato da: Swedish Institute for Infectious Disease Control
Active Immunotherapy Against HIV During Highly Active Anti-retroviral Therapy Followed by Repeated Treatment Interruptions
In this study, the investigators evaluated a therapeutic HIV-1 DNA vaccine administered with a novel topical application method to 12 chronically HIV-infected cART treated patients.
The HIV DNA plasmids used in this study encode for envelope gp160 of HIV-1 subtypes A, B and C, rev B, Gag A and B and reverse transcriptase (RT) B. The patients were randomly assigned to three groups; group 1 (n=4) were immunized six times with 0.4 mg of HIV DNA plasmids topically, group 2 (n=4) were immunized six times with 0.4 mg of HIV DNA plasmids topically and treated with 500 mg of hydroxyurea daily until visit 10, group 3 (n=4) four patients received placebo.
The immunization was performed during three cycles of 7 weeks of cART followed by four weeks of therapy interruption.
After the last cycle of cART the patients were maintained on a definitive treatment interruption until CD4+ T cell counts dropped below 350/ mm3 at two time points.
Cellular and humoral immune responses, viral load and CD4+ T a cell count was analysed throughout the study.
Panoramica dello studio
Tipo di studio
Interventistico
Iscrizione (Effettivo)
12
Fase
- Fase 1
Contatti e Sedi
Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.
Luoghi di studio
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Stockholm, Svezia, 1188
- South Hospital
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Criteri di partecipazione
I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.
Criteri di ammissibilità
Età idonea allo studio
Da 18 anni a 60 anni (Adulto)
Accetta volontari sani
No
Sessi ammissibili allo studio
Tutto
Descrizione
Inclusion Criteria:
- Aged between 18 and 60 years
- Female, who is documented infertile or in menopause since at least 1 year, or male, who are willing not father a child for the duration of the study.
- HIV infection detected by two serological and/or HIV plasma RNA tests
- On HAART for at least 6 months with less than 50 copies/ml of plasma HIV-1 RNA at two determinations over 3 months
- Current CD4 count above 400
- CD4 count nadir >200
- Viral isolate pre ART available is preferable but not mandatory
- Willing to consider stopping HAART repeatedly.
- Willing to conform to a low alcohol intake (maximum of one glass per day)
- Able to tolerate didanosine and hydroxyurea
- Willing to change their HAART to exclude NNRTI and stavudine
- Able to give informed consent
- Availability for follow-up for planned duration of the study
Exclusion Criteria:
- Patients with ongoing infection(s) other than HIV.
- Prior or current pancreatitis or history of alcohol abuse.
- Ongoing neuropathy and history of more than grade 1 neuropathy.
- History of mutations to more than one class of anti-retroviral drugs or switched drugs more than once due to failure.
- Sun or solarium exposure at the immunizing sites one month before or during the trial.
- Cortisone treatment, systemic or local at the immunizing sites, one month before or during the trial.
- Patients with signs of autoimmune diseases
- Patients with creatinine > 2mg/dl, Hb < 12g/dl, leukocytes < 3,000ul, platelets <150,000/ul and LFT > 5x upper limit of normal
- Patients on any immune modulating or investigational drug
- Anamnestic allergy to kanamycin, plasmid gene products
Piano di studio
Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Quadruplicare
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
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Sperimentale: HIV DNA + Hydroxyurea
0.4 mg of DNA plasmids encoding HIV env A, B, C and Rev B, gag A, B and RT mut formulated in PEI and glucose was applied topically with the DermaPrep procedure six times during cycles of 7 weeks of active HAART.
Every immunization cycle was followed by four weeks of therapy interruption.
The patients also received 500 mg of hydroxyurea daily.
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0.4 mg of DNA plasmids encoding HIV env A, B, C and Rev B, gag A, B and RT mut formulated in PEI and glucose was applied topically with the DermaPrep procedure six times during cycles of 7 weeks of active HAART.
Every immunization cycle was followed by four weeks of therapy interruption.
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Sperimentale: HIV DNA
0.4 mg of DNA plasmids encoding HIV env A, B, C and Rev B, gag A, B and RT mut formulated in PEI and glucose was applied topically with the DermaPrep procedure six times during cycles of 7 weeks of active HAART.
Every immunization cycle was followed by four weeks of therapy interruption.
|
0.4 mg of DNA plasmids encoding HIV env A, B, C and Rev B, gag A, B and RT mut formulated in PEI and glucose was applied topically with the DermaPrep procedure six times during cycles of 7 weeks of active HAART.
Every immunization cycle was followed by four weeks of therapy interruption.
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Comparatore placebo: Placebo
PEI and glucose was applied topically with the DermaPrep procedure six times during cycles of 7 weeks of active HAART.
Every immunization cycle was followed by four weeks of therapy interruption.
|
0.4 mg of DNA plasmids encoding HIV env A, B, C and Rev B, gag A, B and RT mut formulated in PEI and glucose was applied topically with the DermaPrep procedure six times during cycles of 7 weeks of active HAART.
Every immunization cycle was followed by four weeks of therapy interruption.
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
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Safety and feasibility
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The safety and feasibility of dermal HIV-1 DNA vaccination will be evaluated by recording all medical events.
They will be graded as to their seriousness, severity and relationship to the immunization.
Plasma HIV-1 RNA levels and T-cell levels will be closely monitored.
In addition to this the patient's individual experience and quality of life will be assessed.
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Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
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Treatment effects
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To evaluate whether dermal HIV-1 DNA vaccination can prolong periods without treatment in HIV-infected individuals.
This will be evaluated by structured treatment interruption with close monitoring of HIV viral load and CD4+ T cell counts
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Collaboratori e investigatori
Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.
Studiare le date dei record
Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.
Studia le date principali
Inizio studio
1 settembre 2006
Completamento primario (Effettivo)
1 ottobre 2009
Completamento dello studio (Effettivo)
1 dicembre 2009
Date di iscrizione allo studio
Primo inviato
7 giugno 2010
Primo inviato che soddisfa i criteri di controllo qualità
8 giugno 2010
Primo Inserito (Stima)
9 giugno 2010
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
9 giugno 2010
Ultimo aggiornamento inviato che soddisfa i criteri QC
8 giugno 2010
Ultimo verificato
1 febbraio 2006
Maggiori informazioni
Termini relativi a questo studio
Altri numeri di identificazione dello studio
- DermHIVImm
Informazioni su farmaci e dispositivi, documenti di studio
Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti
No
Studia un dispositivo regolamentato dalla FDA degli Stati Uniti
No
prodotto fabbricato ed esportato dagli Stati Uniti
No
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 .