Evidence map›Paper›PMID 19040615›Full record

Trial reportClinical and experimental immunology2009

Proinsulin peptide immunotherapy in type 1 diabetes: report of a first-in-man Phase I safety study.

S L Thrower, L James, W Hall, K M Green, S Arif, J S Allen, C Van-Krinks, B Lozanoska-Ochser, L Marquesini, S Brown and 3 more

Open access · greenAbstract readClinical Trial, Phase IRandomized Controlled Trial
In one paragraph

Trial report in Clinical and experimental immunology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed, 1 pooled it
5.0field-weighted citation impact, top 5% 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

82 citing papers in PubMed, 1 synthesis or guideline pooled it, 150 citations in OpenAlex.

  1. Guideline
  2. Trial
  3. Trial
  4. Trial
  5. Vaccines · 2025
    Review
  6. Review
  7. New Perspectives in Studying Type 1 Diabetes Susceptibility Biomarkers.International journal of molecular sciences · 2025
    Review
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. The yin/yang balance of the MHC-selfFrontiers in immunology · 2022
    Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. Therapeutic Advances in Diabetes, Autoimmune, and Neurological Diseases.International journal of molecular sciences · 2021
    Review
  19. Review
  20. Article

22 more citing papers are in PubMed but not listed here.

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

13 authors at 3 institutions in 1 country.

S L ThrowerHenry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, University of Bristol, Bristol, UK.
L James
W Hall
K M Green
S Arif
J S Allen
C Van-Krinks
B Lozanoska-Ochser
L Marquesini
S Brown
F S Wong
C M Dayan
M Peakman
King's College London · GBUniversity of Bristol · GBGuy's and St Thomas' NHS Foundation Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Immunotherapeutic strategies under consideration for type 1 diabetes include modification of the autoimmune response through antigen-specific routes. Administration of short peptides representing T cell epitopes targeted by patients with the disease represents one approach. This study evaluated safety and mechanistic outcomes during first-in-man intradermal administration of a human leucocyte antigen-DR4 (HLA-DR4)-restricted peptide epitope of proinsulin (C19-A3). This randomized, open-label study assessed two major theoretical risks of peptide immunotherapy, namely induction of allergic hypersensitivity and exacerbation of the proinflammatory autoimmune response, using clinical assessment and mechanistic assays in vitro. Patients with long-standing type 1 diabetes and HLA-DRB1*0401 genotype received 30 microg (n = 18) or 300 microg (n = 18) of peptide in three equal doses at 0, 1 and 2 months or no intervention (n = 12). Proinsulin peptide immunotherapy in the dosing regimen used is well tolerated and free from risk of systemic hypersensitivity and induction/reactivation of proinsulin-specific, proinflammatory T cells. Peptide-specific T cells secreting the immune suppressive cytokine interleukin (IL)-10 were observed at month 3 in four of 18 patients in the low-dose group (versus one of 12 in the control group; P = not significant). Mean IL-10 response to peptide in the low-dose group increased between 0 and 3 months (P = 0.05 after stimulation with 5 microM peptide in vitro) and then declined to baseline levels between 3 and 6 months (P = 0.01 at 10 microM peptide in vitro). These studies pave the way for future investigations in new-onset patients designed to examine whether proinsulin peptide immunotherapy has beneficial effects on markers of T cell autoimmunity and preservation of beta cell mass.

Indexed as

AutoantibodiesCytokinesDiabetes Mellitus, Type 1Dose-Response Relationship, ImmunologicGenotypeGlycated HemoglobinHLA-DR AntigensHLA-DRB1 ChainsHumansImmunotherapyInjections, IntradermalInterferon-gammaInterleukin-10Islets of LangerhansPeptidesProinsulinAutoantibodiesCytokinesGlycated Hemoglobinhemoglobin A1c protein, humanHLA-DR AntigensHLA-DRB1*04:01 antigenHLA-DRB1 ChainsInterferon-gammaInterleukin-10PeptidesProinsulin

Identifiers

PMID19040615
PMCPMC2675245
OpenAlexW2010973471

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.