Safety and Effectiveness of Short-Term Anti-HIV Drug Therapy for Recent HIV-1 Infection
An Open-Label Randomized Clinical Trial to Evaluate the Efficacy and Safety of Short Course Antiretroviral Therapy for Acute or Recent HIV-1 Infection in Zimbabwe and the United States
Studieöversikt
Status
Betingelser
Intervention / Behandling
Detaljerad beskrivning
About 6 months after infection, HIV viral load reaches a temporarily stable level known as virus set point. Virus set point is different for each patient and can be a predictor for disease progression. Preliminary studies indicate that early, short-term antiretroviral therapy (ART) given to people newly infected with HIV may lead to lower virus set points and preserved CD4 counts. However, the length of short-term treatment needed to balance the possible adverse effects of ART with the achievement of lower virus set point is not yet known. By lowering the virus set point and maintaining CD4 counts, the need for long-term ART may be postponed. The purpose of this study is to determine the safety and efficacy of a short course of ART on producing a lower virus set point in adults recently infected with HIV.
This study will last at least 28 weeks. Participants will be randomly assigned to one of two arms. Arm A will receive ART for 12 weeks as emtricitabine/tenofovir disoproxil fumarate (TDF/FTC) daily and lopinavir/ritonavir (LPV/RTV) in tablet form twice daily. After 12 weeks, treatment will be interrupted unless the CD4 count is measured to be less than 350 cells/mm^3 on two consecutive occasions during treatment interruption. If that occurs therapy will be resumed. Participants in Arm B will receive no treatment until cluster of differentiation 4 (CD4) counts drop below 350 cells/mm^3, indicating ART is needed. Study visits will occur at study entry, at Weeks 2 and 4, and every 4 weeks thereafter. At each study visit, a physical exam, blood collection, and completion of an adherence questionnaire will occur. Participants are encouraged to enroll in a related substudy that will evaluate HIV viral load in genital secretions.
Studietyp
Inskrivning (Faktisk)
Fas
- Inte tillämpbar
Kontakter och platser
Studieorter
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Colorado
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Denver, Colorado, Förenta staterna, 80262
- University of Colorado Health Sciences Center
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Georgia
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Atlanta, Georgia, Förenta staterna, 30308
- AIDS Research Consortium of Atlanta
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-
-
-
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Harare, Zimbabwe
- University of Zimbabwe College of Health Sciences
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Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
Inclusion Criteria:
- Acute or recent HIV-1 infection. More information about this criterion can be found in the protocol.
- CD4 count 500 cells/mm3 or greater
- No evidence of prior or current AIDS-defining illness
- No signs or symptoms of HIV infection or AIDS-defining illness that, in the opinion of the investigator, requires ART
- Willing to use acceptable forms of contraception
Exclusion Criteria:
- Prior treatment with any antiretroviral drug for more than 7 days
- Use of certain drugs within 21 days of study entry
- Prior receipt of investigational anti-HIV-1 vaccine
- Ongoing therapy with systemic corticosteroids, chemotherapeutic agents, nephrotoxic systemic agents, immunomodulatory treatments, or investigational agents
- Known allergy/sensitivity to study drugs or their formulations
- Current drug or alcohol use or abuse that, in the opinion of the investigator, may interfere with the study
- Serious medical or psychiatric illness that may interfere with the study
- Hepatitis B infected
- Pregnancy or breastfeeding
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Behandling
- Tilldelning: Randomiserad
- Interventionsmodell: Parallellt uppdrag
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
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Experimentell: Treatment interruption
Oral Tenofovir disoproxil fumarate/Emtricitabine and Lopinavir/Ritonavir for 12 weeks followed by treatment interruption if CD4 count is 450 mm^3 or higher.
When CD4 count is less than 350 mm^3 on two separate, consecutive measurements during treatment interruption, therapy will be resumed.
|
300 mg Tenofovir disoproxil fumarate/ 200 mg emtricitabine tablet taken orally once daily
Andra namn:
Three 400 mg lopinavir/ 100 mg ritonavir soft gel capsules taken orally twice daily
Andra namn:
|
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Experimentell: CD4 T cell guided therapy
Anti Retroviral Therapy initiated when AIDS-defining illness occurs or if CD4 count is confirmed at less than 350 mm^3 at two separate, consecutive measurements
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300 mg Tenofovir disoproxil fumarate/ 200 mg emtricitabine tablet taken orally once daily
Andra namn:
Three 400 mg lopinavir/ 100 mg ritonavir soft gel capsules taken orally twice daily
Andra namn:
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Plasma HIV-1 Viral Load (Copies/ml) at Week 24 as Compared Between the Two Arms
Tidsram: At Week 24
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At Week 24
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Number of Participants Experiencing Either an AIDS-defining Event, a Grade 3 or 4 Adverse Event, or Acute Retroviral Syndrome
Tidsram: At Week 24
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At Week 24
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Viral Set Point
Tidsram: Throughout study
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set point is reached after the immune system has developed HIV antibodies and begins to attempt to fight the virus
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Throughout study
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Samarbetspartners och utredare
Sponsor
Samarbetspartners
Utredare
- Studiestol: Michelle A. Barron, MD, Division of Infectious Disease, University of Colorado Health Sciences Center
- Studiestol: Margaret Borok, MRCP, Department of Medicine, University of Zimbabwe
Publikationer och användbara länkar
Allmänna publikationer
- Fidler S, Oxenius A, Brady M, Clarke J, Cropley I, Babiker A, Zhang HT, Price D, Phillips R, Weber J. Virological and immunological effects of short-course antiretroviral therapy in primary HIV infection. AIDS. 2002 Oct 18;16(15):2049-54. doi: 10.1097/00002030-200210180-00010.
- Altfeld M, Rosenberg ES, Shankarappa R, Mukherjee JS, Hecht FM, Eldridge RL, Addo MM, Poon SH, Phillips MN, Robbins GK, Sax PE, Boswell S, Kahn JO, Brander C, Goulder PJ, Levy JA, Mullins JI, Walker BD. Cellular immune responses and viral diversity in individuals treated during acute and early HIV-1 infection. J Exp Med. 2001 Jan 15;193(2):169-80. doi: 10.1084/jem.193.2.169.
- Coombs RW, Speck CE, Hughes JP, Lee W, Sampoleo R, Ross SO, Dragavon J, Peterson G, Hooton TM, Collier AC, Corey L, Koutsky L, Krieger JN. Association between culturable human immunodeficiency virus type 1 (HIV-1) in semen and HIV-1 RNA levels in semen and blood: evidence for compartmentalization of HIV-1 between semen and blood. J Infect Dis. 1998 Feb;177(2):320-30. doi: 10.1086/514213.
- Gallant JE. Current status of antiretroviral treatment interruption and intermittent therapy strategies. MedGenMed. 2002 Sep 19;4(3):19. No abstract available.
- Gulick RM. Structured treatment interruption in patients infected with HIV: a new approach to therapy. Drugs. 2002;62(2):245-53. doi: 10.2165/00003495-200262020-00001.
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
- Patologiska processer
- RNA-virusinfektioner
- Virussjukdomar
- Blodburna infektioner
- Sexuellt överförbara sjukdomar, virala
- Sexuellt överförbara sjukdomar
- Lentivirusinfektioner
- Retroviridae-infektioner
- Immunologiska bristsyndrom
- Immunsystemets sjukdomar
- Sjukdomsegenskaper
- HIV-infektioner
- Infektioner
- Smittsamma sjukdomar
- Molekylära mekanismer för farmakologisk verkan
- Anti-infektionsmedel
- Antivirala medel
- Omvända transkriptashämmare
- Nukleinsyrasynteshämmare
- Enzyminhibitorer
- Anti-HIV-medel
- Antiretrovirala medel
- Proteashämmare
- Cytokrom P-450 CYP3A-hämmare
- Cytokrom P-450 enzymhämmare
- HIV-proteashämmare
- Virala proteashämmare
- Tenofovir
- Emtricitabin
- Ritonavir
- Lopinavir
Andra studie-ID-nummer
- 06-0757
- P01AI055356 (U.S.S. NIH-anslag/kontrakt)
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