- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT00046033
Comparing Standard-Dose Versus Adjusted-Dose Lopinavir/Ritonavir Therapy in HIV-Infected Persons With Drug Resistance
A Phase II, Randomized, Open-Label Study Comparing Fixed-Dose Versus Concentration-Adjusted Lopinavir/Ritonavir Therapy in HIV-Infected Subjects on Salvage Therapy
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
Antiretroviral drugs may fail to suppress HIV unless there are adequate amounts of those drugs in the blood. By monitoring the amounts of drugs in the blood and adjusting doses to achieve optimal drug concentrations, response to antiretroviral drugs may improve, especially in patients who have failed previous regimens. This study is designed to evaluate drug monitoring and dose adjustment of protease inhibitors (PIs) in heavily treatment-experienced patients.
Patients will be randomized to receive either a standard dose of LPV/r (Arm A) or a concentration-adjusted dose of LPV/r (Arm B). Concentration-adjusted dosing means that the dose of ritonavir or lopinavir may be increased based on the amount of lopinavir measured in the blood and the results of a drug resistance test. All patients start the study taking LPV/r, tenofovir disoproxil fumarate (TDF), 0 to 2 additional nucleoside reverse transcriptase inhibitors (NRTIs), and saquinavir (SQV) or amprenavir (APV). Only LPV/r, TDF, and SQV will be provided by the study. Other medications taken as part of the antiretroviral regimen must be obtained outside the study.
Patients in Arm A will take the usual approved dose of LPV/r for the first 24 weeks. At Week 24, patients with high viral loads will come to the clinic for a 12-hour LPV blood level measurement to see if the level of LPV needs to be increased. If it does, an additional capsule of ritonavir will be added to the regimen to boost the level of LPV.
Patients in Arm B will have a series of blood draws over a 12-hour period in the clinic, around 14 days after starting the study, to find out if their LPV level needs to be increased. If the LPV level needs to be raised, an additional capsule of ritonavir will be added to the regimen to boost the level of LPV. Patients who had their ritonavir dose adjusted will return to have another 12-hour blood draw around Week 5. If the LPV level still needs to be changed, an additional capsule of LPV/r will be added to the regimen. A third 12-hour blood draw will be performed around Week 8 if a second dose adjustment was necessary.
During the study, patients will visit the clinic weekly through Week 6, again at Week 8, then every 4 weeks thereafter through Week 32. Patients will have blood drawn at certain visits to test for LPV level, viral load, CD4 count, fasting lipids and glucose, and drug resistance.
Tipo di studio
Iscrizione
Fase
- Fase 2
Contatti e Sedi
Luoghi di studio
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Florida
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Miami, Florida, Stati Uniti, 33136-1013
- Univ of Miami
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Hawaii
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Honolulu, Hawaii, Stati Uniti, 96816-2396
- Univ of Hawaii
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New York
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New York, New York, Stati Uniti, 10016
- NYU/Bellevue
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Ohio
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Cleveland, Ohio, Stati Uniti, 44106
- Case Western Reserve Univ
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Pennsylvania
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Pittsburgh, Pennsylvania, Stati Uniti, 15213-2582
- Univ of Pittsburgh
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Texas
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Galveston, Texas, Stati Uniti, 77555-0435
- Univ of Texas, Galveston
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- HIV-infection
- Viral load >= 5000 copies/ml within 45 days prior to study entry
- Documented reduction in LPV sensitivity based on results obtained within 45 days prior to study entry
- Prior experience with 2 or more NRTIs for at least 6 months each
- At least 12 weeks of stable antiretroviral treatment that includes at least one PI prior to study entry and may include TDF and/or T-20 for 8 weeks or more immediately prior to study entry
- Negative pregnancy test within 14 days prior to study entry
- Agree not to become pregnant or to impregnate and to use an acceptable form of contraception while receiving study drugs and for 4 weeks after stopping study drugs
Exclusion Criteria:
- Pregnant or breast-feeding.
- Certain drugs within 14 days prior to study entry
- Nonnucleoside reverse transcriptase inhibitors (NNRTIs) within 14 days prior to study entry
- History of intolerance to LPV/r, RTV, or TDF and/or their components
- Drug or alcohol use that, in the opinion of the investigator, would interfere with the study
- Require therapy and/or hospitalization due to a serious infection or medical illness that is potentially life-threatening within 14 days prior to study entry
- Any condition that, in the opinion of the investigator, would compromise ability to participate in the study
- Unexplained fever for 7 consecutive days or chronic diarrhea within 30 days prior to study entry
- Cancer requiring chemotherapy
- Any immune system drugs, HIV vaccine, or other experimental therapy within 30 days prior to study entry
- Plan to use any PI other than APV, SQV, or LPV/r in the initial study treatment
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Nessuno (etichetta aperta)
Collaboratori e investigatori
Investigatori
- Cattedra di studio: Deborah McMahon, M.D., University of Pittsburgh
Pubblicazioni e link utili
Pubblicazioni generali
- Durant J, Clevenbergh P, Garraffo R, Halfon P, Icard S, Del Giudice P, Montagne N, Schapiro JM, Dellamonica P. Importance of protease inhibitor plasma levels in HIV-infected patients treated with genotypic-guided therapy: pharmacological data from the Viradapt Study. AIDS. 2000 Jul 7;14(10):1333-9. doi: 10.1097/00002030-200007070-00005.
- Kilby JM, Hill A, Buss N. The effect of ritonavir on saquinavir plasma concentration is independent of ritonavir dosage: combined analysis of pharmacokinetic data from 97 subjects. HIV Med. 2002 Apr;3(2):97-104. doi: 10.1046/j.1468-1293.2002.00090.x.
- Veldkamp AI, van Heeswijk RP, Mulder JW, Meenhorst PL, Schreij G, van der Geest S, Lange JM, Beijnen JH, Hoetelmans RM. Steady-state pharmacokinetics of twice-daily dosing of saquinavir plus ritonavir in HIV-1-infected individuals. J Acquir Immune Defic Syndr. 2001 Aug 1;27(4):344-9. doi: 10.1097/00126334-200108010-00004.
Studiare le date dei record
Studia le date principali
Completamento primario (Effettivo)
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
- Meccanismi molecolari dell'azione farmacologica
- Agenti antinfettivi
- Agenti antivirali
- Inibitori della trascrittasi inversa
- Inibitori della sintesi degli acidi nucleici
- Inibitori enzimatici
- Agenti anti-HIV
- Agenti antiretrovirali
- Inibitori della proteasi
- Agenti antibatterici
- Inibitori del citocromo P-450 CYP3A
- Inibitori dell'enzima del citocromo P-450
- Inibitori della proteasi dell'HIV
- Inibitori virali della proteasi
- Agenti antitubercolari
- Antibiotici, Antitubercolari
- Tenofovir
- Ritonavir
- Lopinavir
- Amprenavir
- Saquinavir
Altri numeri di identificazione dello studio
- ACTG A5135
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 .
Prove cliniche su Infezioni da HIV
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Federal University of São PauloGilead SciencesCompletato
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University of MinnesotaRitiratoInfezioni da HIV | HIV/AIDS | HIV | AIDS | Problema di Aids/Hiv | AIDS e infezioniStati Uniti
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National Institute of Allergy and Infectious Diseases...Duke University; Department of Health and Human Services (HHS)Non ancora reclutamento
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Jecho Biopharmaceuticals Co., Ltd.Non ancora reclutamento
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Boston UniversityBill and Melinda Gates Foundation; HE2RO, University of the WitwatersrandReclutamento
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National Institute of Allergy and Infectious Diseases...National Institutes of Health (NIH); Department of Health and Human ServicesReclutamento
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University of California, Los AngelesNational Institute of Mental Health (NIMH); Partners in Hope, Inc.Reclutamento
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Kelley-Ross & Associates, Inc.Gilead SciencesAttivo, non reclutante
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Center for Innovative Public Health ResearchNational Institute of Mental Health (NIMH); Makerere University; Internet Solutions...Non ancora reclutamento
Prove cliniche su Ritonavir
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PfizerAttivo, non reclutante
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PfizerCompletato
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Jiangsu Simcere Pharmaceutical Co., Ltd.Completato
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ANRS, Emerging Infectious DiseasesAbbottCompletato
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Drugs for Neglected DiseasesUniversity of Cape Town; Medecins Sans Frontieres, Netherlands; UBS Optimus Foundation e altri collaboratoriCompletatoSindrome da immunodeficienza acquisita | TubercolosiSud Africa
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Jiangsu Simcere Pharmaceutical Co., Ltd.Reclutamento
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Karolinska InstitutetKarolinska University Hospital; PfizerCompletatoCOVID-19 | Sindrome post-COVID-19 | Lungo COVID | Lungo Covid19 | Condizione post COVID-19 | Sindrome post-COVID | Condizione post COVID-19, non specificata | POTS - Sindrome da tachicardia ortostatica posturale | Infiammazione Postinfettiva | Disturbo PostinfettivoSvezia
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PfizerRitiratoPartecipanti sani | Disponibilità biologica
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Washington University School of MedicineGlaxoSmithKlineCompletato
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Jiangsu Simcere Pharmaceutical Co., Ltd.Non ancora reclutamentoInsufficienza renale | Insufficienza epaticaCina