Evidence map›Paper›PMID 18431498›Full record

Trial reportPloS one2008

Metabolic and immune activation effects of treatment interruption in chronic HIV-1 infection: implications for cardiovascular risk.

Pablo Tebas, William Keith Henry, Roy Matining, Deborah Weng-Cherng, John Schmitz, Hernan Valdez, Nasreen Jahed, Laurie Myers, William G Powderly, David Katzenstein

Registry-linked trialOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in PloS one, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00015704 (An Open-Label, Pilot Study Utilizing CD4 T-Cell Counts Lower Than 350 Cells/mm3 as the Threshold for Restarting Therapy With Potent Antiretroviral Therapy With or Without Interleukin-2 to Determine the Effect of Pulse Therapy on the Characteristics of Treatment Interruptions), which is not on this map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
8.9field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT00015704 nacompletednot on this map

An Open-Label, Pilot Study Utilizing CD4 T-Cell Counts Lower Than 350 Cells/mm3 as the Threshold for Restarting Therapy With Potent Antiretroviral Therapy With or Without Interleukin-2 to Determine the Effect of Pulse Therapy on the Characteristics of Treatment Interruptions

TypeinterventionalSponsorNational Institute of Allergy and Infectious Diseases (NIAID)Enrolled80ConditionsHIV InfectionsArmsAldesleukin
3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 61 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Trial
  6. Review
  7. Article
  8. Observational
  9. Article
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  12. Review
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  16. Prevalence of cardiovascular diseases in HIV-infected outpatients: results from a prospective, multicenter cohort study.Clinical research in cardiology : official journal of the German Cardiac Society · 2013
    Article
  17. Article
  18. Article
  19. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 9 institutions in 2 countries.

Pablo TebasUniversity of Pennsylvania, Philadelphia, Pennsylvania, United States of America. pablo.tebas@uphs.upenn.edu
William Keith Henry
Roy Matining
Deborah Weng-Cherng
John Schmitz
Hernan Valdez
Nasreen Jahed
Laurie Myers
William G Powderly
David Katzenstein
Harvard University Press · USCase Western Reserve University · USFrontier Science & Technology Research Foundation · USHennepin County Medical Center · USSocial and Scientific Systems (United States) · USStanford University · USUniversity College Dublin · IEUniversity of North Carolina at Chapel Hill · USUniversity of Pennsylvania · US

Funding

WOMEN'S HEALTH AGENDAU01AI038858 · NIAID · SOCIAL AND SCIENTIFIC SYSTEMS, INC. · PI BENSON, CONSTANCE ANN · 1996 to 2008
$157.5M
XOLAIR IN SUBJECTS WITH MODERATE TO SEVERE ATOPIC DERMATITIS WITH FOOD ALLERGYM01RR000070 · NCRR · STANFORD UNIVERSITY · PI RASGON, NATALIE L · 1985 to 2008
$32.4M
WOMEN'S HEALTH AGENDAU01AI025868 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI ERON, JOSEPH J. · 1987 to 2006
$14.9M
WOMEN'S HEALTH AGENDAU01AI025879 · NIAID · CASE WESTERN RESERVE UNIVERSITY · PI LEDERMAN, MICHAEL MARCEL · 1987 to 2006
$14.0M
WOMEN'S HEALTH AGENDAU01AI027661 · NIAID · UNIVERSITY OF MINNESOTA TWIN CITIES · PI BALFOUR, HENRY H. · 1988 to 2008
$13.4M
WOMEN'S HEALTH AGENDAU01AI025903 · NIAID · WASHINGTON UNIVERSITY · PI CLIFFORD, DAVID B · 1987 to 2006
$12.5M
WOMEN'S HEALTH AGENDAU01AI027666 · NIAID · STANFORD UNIVERSITY · PI ZOLOPA, ANDREW RICHARD · 1988 to 2006
$11.4M
ADULT THERAPEUTIC CLINICAL TRIALS PROGRAM IN AIDSU01AI046370 · NIAID · BETH ISRAEL MEDICAL CTR (NEW YORK) · PI MILDVAN, DONNA · 2000 to 2008
$11.0M
WOMEN'S HEALTH AGENDAU01AI039156 · NIAID · DUKE UNIVERSITY · PI BARTLETT, JOHN A · 1996 to 2006
$10.3M
NCRR NIH HHS M01 RR000070NIAID NIH HHS AI25868NIAID NIH HHS AI25879NIAID NIH HHS AI25903NIAID NIH HHS AI27661NIAID NIH HHS AI27666NIAID NIH HHS AI39156NIAID NIH HHS AI46370NIAID NIH HHS U01 AI025868NIAID NIH HHS U01 AI025879NIAID NIH HHS U01 AI025903NIAID NIH HHS U01 AI027661NIAID NIH HHS U01 AI027666NIAID NIH HHS U01 AI038858NIAID NIH HHS U01 AI039156NIAID NIH HHS U01 AI046370NIAID NIH HHS U01AI38858
6 · The paper itself

Abstract

backgroundConcern about costs and antiretroviral therapy (ART)-associated toxicities led to the consideration of CD4 driven strategies for the management of HIV. That approach was evaluated in the SMART trial that reported an unexpected increase of cardiovascular events after treatment interruption (TI). Our goal was to evaluate fasting metabolic changes associated with interruption of antiretroviral therapy and relate them to changes of immune activation markers and cardiovascular risk. METHODOLOGY: ACTG 5102 enrolled 47 HIV-1-infected subjects on stable ART, with <200 HIV RNA copies/mL and CD4 cell count >or=500 cells/microL. Subjects were randomly assigned to continue ART for 18 weeks with or without 3 cycles of interleukin-2 (IL-2) (cycle = 4.5 million IU sc BID x 5 days every 8 weeks). After 18 weeks ART was discontinued in all subjects until the CD4 cell count dropped below 350 cells/microL. Glucose and lipid parameters were evaluated every 8 weeks initially and at weeks 2, 4, 8 and every 8 weeks after TI. Immune activation was evaluated by flow-cytometry and soluble TNFR2 levels. PRINCIPAL

findingsBy week 8 of TI, levels of total cholesterol (TC) (median (Q1, Q3) (-0.73 (-1.19, -0.18) mmol/L, p<0.0001), LDL, HDL cholesterol (-0.36(-0.73,-0.03)mmol/L, p = 0.0007 and -0.05(-0.26,0.03), p = 0.0033, respectively) and triglycerides decreased (-0.40 (-0.84, 0.07) mmol/L, p = 0.005). However the TC/HDL ratio remained unchanged (-0.09 (-1.2, 0.5), p = 0.2). Glucose and insulin levels did not change (p = 0.6 and 0.8, respectively). After TI there was marked increase in immune activation (CD8+/HLA-DR+/CD38+ cells, 34% (13, 43), p<0.0001) and soluble TNFR2 (1089 ng/L (-189, 1655), p = 0.0008) coinciding with the rebound of HIV viremia.

conclusionsOur data suggests that interrupting antiretroviral therapy does not reduce cardiovascular disease (CVD) risk, as the improvements in lipid parameters are modest and overshadowed by the decreased HDL levels. Increased immune cell activation and systemic inflammatory responses associated with recrudescent HIV viremia may provide a more cogent explanation for the increased cardiovascular risk associated with treatment interruption and HIV infection.

trial registrationClinicalTrials.gov NCT00015704.

Indexed as

Antiretroviral Therapy, Highly ActiveCardiovascular DiseasesCholesterolCholesterol, HDLChronic DiseaseGlucoseHIV-1HIV InfectionsHumansInterleukin-2Lipid MetabolismRisk FactorsCholesterolCholesterol, HDLGlucoseInterleukin-2

Identifiers

PMID18431498
PMCPMC2292263
OpenAlexW2030627771

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.