Evidence map›Paper›PMID 27002074›Full record

ArticleThe Journal of antimicrobial chemotherapy2016

A long-acting formulation of the integrase inhibitor raltegravir protects humanized BLT mice from repeated high-dose vaginal HIV challenges.

Martina Kovarova, Michael D Swanson, Rosa I Sanchez, Caroline E Baker, Justin Steve, Rae Ann Spagnuolo, Bonnie J Howell, Daria J Hazuda, J Victor Garcia

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of antimicrobial chemotherapy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.2field-weighted citation impact, top 6% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 32 citations in OpenAlex.

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  18. Long-Acting Antiretrovirals: Where Are We now?Current HIV/AIDS reports · 2017
    Review
  19. Article
  20. Humanized mice for HIV and AIDS research.Current opinion in virology · 2016
    Review
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

9 authors at 2 institutions in 1 country.

Martina KovarovaDivision of Infectious Diseases, Center for AIDS Research, School of Medicine, University of North Carolina at Chapel Hill, NC, USA.
Michael D SwansonDivision of Infectious Diseases, Center for AIDS Research, School of Medicine, University of North Carolina at Chapel Hill, NC, USA.
Rosa I SanchezMerck Research Laboratories, Merck & Co., Inc., West Point, PA 19486, USA.
Caroline E BakerDivision of Infectious Diseases, Center for AIDS Research, School of Medicine, University of North Carolina at Chapel Hill, NC, USA.
Justin SteveMerck Research Laboratories, Merck & Co., Inc., West Point, PA 19486, USA.
Rae Ann SpagnuoloDivision of Infectious Diseases, Center for AIDS Research, School of Medicine, University of North Carolina at Chapel Hill, NC, USA.
Bonnie J HowellMerck Research Laboratories, Merck & Co., Inc., West Point, PA 19486, USA.
Daria J HazudaMerck Research Laboratories, Merck & Co., Inc., West Point, PA 19486, USA.
J Victor GarciaDivision of Infectious Diseases, Center for AIDS Research, School of Medicine, University of North Carolina at Chapel Hill, NC, USA victor_garcia@med.unc.edu.
University of North Carolina at Chapel Hill · USUnited States Military Academy · US

Funding

Virology Research Program (Program 4)P30CA016086 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI David Darr · 1985 to 2026
$201.5M
Virology, Immunology, and Microbiology CoreP30AI050410 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DAVID M. MARGOLIS · 2001 to 2026
$76.9M
Vaginal/Rectal HIV Transmission ModelR01AI073146 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI GARCIA-MARTINEZ, J. VICTOR · 2007 to 2016
$4.8M
Next Generation Pre-exposure ProphylaxisR01AI096138 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI GARCIA-MARTINEZ, J. VICTOR · 2011 to 2014
$3.5M
NCI NIH HHS P30 CA016086NIAID NIH HHS P30 AI050410NIAID NIH HHS R01 AI073146NIAID NIH HHS R01AI073146NIAID NIH HHS R01 AI096138NIAID NIH HHS R01AI096138
6 · The paper itself

Abstract

objectivesPre-exposure prophylaxis (PrEP) using antiretroviral drugs (ARVs) has been shown to reduce HIV transmission in people at high risk of HIV infection. Adherence to PrEP strongly correlates with the level of HIV protection. Long-acting injectable ARVs provide sustained systemic drug exposures over many weeks and can improve adherence due to infrequent parenteral administration. Here, we evaluated a new long-acting formulation of raltegravir for prevention of vaginal HIV transmission.

methodsLong-acting raltegravir was administered subcutaneously to BALB/c, NSG (NOD-scid-gamma) and humanized BLT (bone marrow-liver-thymus) mice and rhesus macaques. Raltegravir concentration in peripheral blood and tissue was analysed. Suppression of HIV replication was assessed in infected BLT mice. Two high-dose HIV vaginal challenges were used to evaluate protection from HIV transmission in BLT mice.

resultsTwo weeks after a single subcutaneous injection of long-acting raltegravir in BLT mice (7.5 mg) and rhesus macaques (160 mg), the plasma concentration of raltegravir was comparable to 400 mg orally, twice daily in humans. Serum collected from mice 3 weeks post-administration of long-acting raltegravir efficiently blocked HIV infection of TZM-bl indicator cells in vitro. Administration of long-acting raltegravir suppressed viral RNA in plasma and cervico-vaginal fluids of infected BLT mice, demonstrating penetration of active raltegravir into the female reproductive tract. Using transmitted/founder HIV we observed that BLT mice administered a single subcutaneous dose of long-acting raltegravir were protected from two high-dose HIV vaginal challenges 1 week and 4 weeks after drug administration.

conclusionsThese preclinical results demonstrated the efficacy of long-acting raltegravir in preventing vaginal HIV transmission.

Indexed as

AnimalsAnti-HIV AgentsChemopreventionDelayed-Action PreparationsDisease Transmission, InfectiousFemaleHIV InfectionsInjections, SubcutaneousMacaca mulattaMice, Inbred BALB CMice, SCIDPre-Exposure ProphylaxisRaltegravir PotassiumTreatment OutcomeVaginaAnti-HIV AgentsDelayed-Action PreparationsRaltegravir Potassium

Identifiers

PMID27002074
PMCPMC4867102
OpenAlexW2309148214

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.