Evidence map›Paper›PMID 27704166›Full record

SynthesisDiabetologia2017

GAD vaccine reduces insulin loss in recently diagnosed type 1 diabetes: findings from a Bayesian meta-analysis.

Craig A Beam, Colleen MacCallum, Kevan C Herold, Diane K Wherrett, Jerry Palmer, Johnny Ludvigsson, Type 1 Diabetes TrialNet Study Group

Open access · bronzeAbstract readMeta-Analysis
In one paragraph

Synthesis in Diabetologia, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

31 citing papers in PubMed, 52 citations in OpenAlex.

  1. Trial
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  7. (TCRαβCells · 2025
    Review
  8. Review
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  10. Article
  11. Review
  12. Screening and Prevention of Type 1 Diabetes: Where Are We?The Journal of clinical endocrinology and metabolism · 2023
    Review
  13. Article
  14. Review
  15. Article
  16. Vaccine for Diabetes-Where Do We Stand?International journal of molecular sciences · 2022
    Review
  17. Article
  18. Review
  19. Article
  20. Article
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

7 authors at 3 institutions in 3 countries.

Craig A BeamDivision of Epidemiology and Biostatistics, Department of Biomedical Sciences, Western Michigan University Homer Stryker M.D. School of Medicine, 1000 Oakland Drive, Kalamazoo, MI, 49008-8071, USA. craig.beam@med.wmich.edu.
Colleen MacCallumDivision of Epidemiology and Biostatistics, Department of Biomedical Sciences, Western Michigan University Homer Stryker M.D. School of Medicine, 1000 Oakland Drive, Kalamazoo, MI, 49008-8071, USA.
Kevan C HeroldDepartments of Immunobiology and Internal Medicine, Yale University, New Haven, CT, USA.
Diane K WherrettDepartment of Pediatrics, Hospital for Sick Children and University of Toronto, Toronto, ON, Canada.
Jerry PalmerUniversity of Washington and VA Puget Sound Health Care System, Seattle, WA, USA.
Johnny LudvigssonDivison of Pediatrics, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.
Type 1 Diabetes TrialNet Study Group
Western Michigan University · USLinköping University · SEUniversity of Toronto · CA

Funding

Data Coordinating Center for Type 1 Diabetes TrialNet (UC4)USF: TrialNet UC4-3UC4DK117009 · NIDDK · UNIVERSITY OF SOUTH FLORIDA · PI KRISCHER, JEFFREY P · 2017 to 2019
$49.6M
NIDDK Type 1 Diabetes TrialNet Data Coordinating CenterUC4DK106993 · NIDDK · UNIVERSITY OF SOUTH FLORIDA · PI KRISCHER, JEFFREY P · 2015 to 2015
$36.6M
Type 1 Diabetes TrialNet Clinical Network HubU01DK103282 · NIDDK · BENAROYA RESEARCH INST AT VIRGINIA MASON · PI CARLA J GREENBAUM, KURT J GRIFFIN · 2014 to 2026
$14.2M
Northwest Clinical Center for Type 1 Diabetes - TrialNetU01DK061034 · NIDDK · BENAROYA RESEARCH INST AT VIRGINIA MASON · PI GREENBAUM, CARLA J · 2001 to 2018
$10.3M
Type I Diabetes Trialnet at StsnfordU01DK061042 · NIDDK · STANFORD UNIVERSITY · PI WILSON, DARRELL M · 2001 to 2018
$8.5M
UCSF Trialnet: A Phase II Trial of Imatimib in New Onset Type I DiabetesU01DK061010 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI GITELMAN, STEPHEN E · 2001 to 2018
$8.1M
Type 1 Diabetes-A Proposal for Prevention & InterventionU01DK085476 · NIDDK · UNIVERSITY OF MINNESOTA · PI MORAN, ANTOINETTE M. · 2009 to 2018
$7.1M
Prediction and Prevention of Type I DiabetesU01DK061058 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BECKER, DOROTHY J · 2001 to 2018
$6.5M
TrialNet: University of Florida Clinical Center and NetworkU01DK085461 · NIDDK · UNIVERSITY OF FLORIDA · PI HALLER, MICHAEL JAMES · 2009 to 2018
$5.9M
TrialNet: Diabetes Type 1 PreventionU01DK085509 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI GOTTLIEB, PETER A · 2009 to 2018
$5.8M
Vanderbilt University: Clinical Center Application, Type 1 Diabetes TrialNetU01DK085465 · NIDDK · VANDERBILT UNIVERSITY MEDICAL CENTER · PI RUSSELL, WILLIAM E · 2009 to 2018
$4.8M
Type 1 Diabetes TrialNet: Clinical Center at Yale University (U01)U01DK085466 · NIDDK · YALE UNIVERSITY · PI HEROLD, KEVAN C · 2009 to 2018
$3.3M
NIDDK NIH HHS U01 DK061010NIDDK NIH HHS U01 DK061034NIDDK NIH HHS U01 DK061042NIDDK NIH HHS U01 DK061058NIDDK NIH HHS U01 DK085461NIDDK NIH HHS U01 DK085465NIDDK NIH HHS U01 DK085466NIDDK NIH HHS U01 DK085476NIDDK NIH HHS U01 DK085509NIDDK NIH HHS U01 DK103153NIDDK NIH HHS U01 DK103180NIDDK NIH HHS U01 DK103266NIDDK NIH HHS U01 DK103282NIDDK NIH HHS U01 DK106994NIDDK NIH HHS U01 DK107013NIDDK NIH HHS U01 DK107014NIDDK NIH HHS UC4 DK106993NIDDK NIH HHS UC4 DK117009
6 · The paper itself

Abstract

aims/hypothesisGAD is a major target of the autoimmune response that occurs in type 1 diabetes mellitus. Randomised controlled clinical trials of a GAD + alum vaccine in human participants have so far given conflicting results.

methodsIn this study, we sought to see whether a clearer answer to the question of whether GAD65 has an effect on C-peptide could be reached by combining individual-level data from the randomised controlled trials using Bayesian meta-analysis to estimate the probability of a positive biological effect (a reduction in C-peptide loss compared with placebo approximately 1 year after the GAD vaccine).

resultsWe estimate that there is a 98% probability that 20 μg GAD with alum administered twice yields a positive biological effect. The effect is probably a 15-20% reduction in the loss of C-peptide at approximately 1 year after treatment. This translates to an annual expected loss of between -0.250 and -0.235 pmol/ml in treated patients compared with an expected 2 h AUC loss of -0.294 pmol/ml at 1 year for untreated newly diagnosed patients. CONCLUSIONS/

interpretationThe biological effect of this vaccination should be developed further in order to reach clinically desirable reductions in insulin loss in patients recently diagnosed with type 1 diabetes.

Indexed as

AdolescentAdultBayes TheoremChildDiabetes Mellitus, Type 1FemaleGlutamate DecarboxylaseHumansInsulinMaleMiddle AgedVaccinesYoung AdultGlutamate DecarboxylaseInsulinVaccinesBayes methodsGlutamic acid decarboxylase (GAD)Meta-analysisType 1 diabetesVaccine

Identifiers

PMID27704166
PMCPMC5856235
OpenAlexW2528836831

What OpenQuestion holds

Textmetadata
LicenceTDM
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.