Evidence map›Paper›PMID 26376928›Full record

ArticleClinical and vaccine immunology : CVI2015

Attenuation of Replication-Competent Adenovirus Serotype 26 Vaccines by Vectorization.

Lori F Maxfield, Peter Abbink, Kathryn E Stephenson, Erica N Borducchi, David Ng'ang'a, Marinela M Kirilova, Noelix Paulino, Michael Boyd, Paul Shabram, Qian Ruan and 2 more

Abstract read
In one paragraph

Article in Clinical and vaccine immunology : CVI, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
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

6 citing papers in PubMed.

  1. Trial
  2. Article
  3. Review
  4. Review
  5. New concepts in HIV-1 vaccine development.Current opinion in immunology · 2016
    Review
  6. 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

12 authors.

Lori F MaxfieldCenter for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
Peter AbbinkCenter for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
Kathryn E StephensonCenter for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
Erica N BorducchiCenter for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
David Ng'ang'aCenter for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
Marinela M KirilovaCenter for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
Noelix PaulinoCenter for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
Michael BoydCenter for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
Paul ShabramPaxVax, San Diego, California, USA.
Qian RuanPaxVax, San Diego, California, USA.
Mayank PatelPaxVax, San Diego, California, USA.
Dan H BarouchCenter for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA Ragon Institute of MGH, MIT, and Harvard, Boston, Massachusetts, USA dbarouch@bidmc.harvard.edu.

Funding

The impact of HIV viral diversity and cellular immunity on HIV pathogenesisP30AI060354 · NIAID · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI ROBERT A. PARKER · 2004 to 2026
$94.4M
Preclinical Evaluation of Novel Adenovirus Prime-Boost HIV-1 VaccineU19AI078526 · NIAID · BETH ISRAEL DEACONESS MEDICAL CENTER · PI BAROUCH, DAN H. · 2008 to 2012
$44.0M
Preclinical Evaluation of Novel Ad/MVA and Ad/Protein HIV-1 VaccinesU19AI096040 · NIAID · BETH ISRAEL DEACONESS MEDICAL CENTER · PI SEAMAN, MICHAEL SCOTT · 2012 to 2016
$18.0M
Impact of HIV Envelope Conformation on ImmunogenicityR01AI084794 · NIAID · BETH ISRAEL DEACONESS MEDICAL CENTER · PI BAROUCH, DAN H., CHEN, BING · 2009 to 2013
$4.0M
NIAID NIH HHS AI060354NIAID NIH HHS AI078526NIAID NIH HHS AI084794NIAID NIH HHS AI096040NIAID NIH HHS P30 AI060354NIAID NIH HHS R01 AI084794NIAID NIH HHS U19 AI078526NIAID NIH HHS U19 AI096040
6 · The paper itself

Abstract

Replication-competent adenovirus (rcAd)-based vaccine vectors may theoretically provide immunological advantages over replication-incompetent Ad vectors, but they also raise additional potential clinical and regulatory issues. We produced replication-competent Ad serotype 26 (rcAd26) vectors by adding the E1 region back into a replication-incompetent Ad26 vector backbone with the E3 or E3/E4 regions deleted. We assessed the effect of vectorization on the replicative capacity of the rcAd26 vaccines. Attenuation occurred in a stepwise fashion, with E3 deletion, E4 deletion, and human immunodeficiency virus type 1 (HIV-1) envelope (Env) gene insertion all contributing to reduced replicative capacity compared to that with the wild-type Ad26 vector. The rcAd26 vector with E3 and E4 deleted and containing the Env transgene exhibited 2.7- to 4.4-log-lower replicative capacity than that of the wild-type Ad26 in vitro. This rcAd26 vector is currently being evaluated in a phase 1 clinical trial. Attenuation as a result of vectorization and transgene insertion has implications for the clinical development of replication-competent vaccine vectors.

Indexed as

Genetic VectorsVirus ReplicationAdenoviruses, HumanAdenovirus VaccinesClinical Trials, Phase I as Topicenv Gene Products, Human Immunodeficiency VirusGene ExpressionHumansMutagenesis, InsertionalSerogroupAdenovirus Vaccinesenv Gene Products, Human Immunodeficiency Virus

Identifiers

PMID26376928
PMCPMC4622110

What OpenQuestion holds

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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.