Evidence map›Paper›PMID 30003552›Full record

ArticleAllergy2019

Persistent regulatory T-cell response 2 years after 3 years of grass tablet SLIT: Links to reduced eosinophil counts, sIgE levels, and clinical benefit.

Rosa Varona, Tania Ramos, Maria Marta Escribese, Lucia Jimeno, Agustin Galán, Peter A Würtzen, Francisco Vega, Alicia Marín, Santiago Martín, Ana C Carrera and 2 more

Abstract read
In one paragraph

Article in Allergy, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing 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

36 citing papers in PubMed.

  1. Sublingual immunotherapy for 4 years increased the number of Foxp3Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2021
    Trial
  2. Trial
  3. Trial
  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. [Chinese expert consensus on the evaluation of allergen-specific immunotherapy outcomes(Wuhan, 2025)].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2025
    Article
  10. Observational
  11. Focused allergic rhinitis practice parameter for Canada.Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology · 2024
    Article
  12. Article
  13. [Research progress of immune cell markers in allergic rhinitis for the evaluation of allergen immunotherapy].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2024
    Review
  14. Article
  15. KAAACI Guidelines for Allergen Immunotherapy.Allergy, asthma & immunology research · 2023
    Review
  16. Article
  17. Review
  18. Article
  19. Review
  20. 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.

Rosa VaronaDepartment of Immunology and Oncology, Centro Nacional de Biotecnología (CNB-CSIC), Madrid, Spain.
Tania RamosServicio de Alergia, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain.
Maria Marta EscribeseSchool of Medicine, Institute for Applied Molecular Medicine, Universidad CEU San Pablo, Madrid, Spain.
Lucia JimenoDepartamento Médico e I+D, ALK-Abelló, Madrid, Spain.
Agustin GalánDepartamento Médico e I+D, ALK-Abelló, Madrid, Spain.
Peter A WürtzenTranslational Research, ALK-Abelló, Hørsholm, Denmark.
Francisco VegaServicio de Alergia, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain.
Alicia MarínDepartamento Médico e I+D, ALK-Abelló, Madrid, Spain.
Santiago MartínDepartamento Médico e I+D, ALK-Abelló, Madrid, Spain.
Ana C CarreraDepartment of Immunology and Oncology, Centro Nacional de Biotecnología (CNB-CSIC), Madrid, Spain.
Carlos BlancoServicio de Alergia, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain.
Domingo BarberSchool of Medicine, Institute for Applied Molecular Medicine, Universidad CEU San Pablo, Madrid, Spain.ORCID 0000-0002-5488-5700

Funding

ALK-Abello A/SFUNDACION GENOMA ESPAÑA
6 · The paper itself

Abstract

backgroundIn the first 2 years of grass tablet sublingual immunotherapy treatment, we have previously demonstrated a progressive development of a regulatory T-cell response, which was preceded by an early decrease in the frequency of both IL-4+ cells and sIgE levels. A progressive increase in sIgG

methodsBy monitoring immunological kinetics during 3 years of active treatment + 2 years of follow-up, we aimed to identify key immunological parameters that could explain sustained clinical benefit of grass tablet sublingual immunotherapy.

resultsThirty patients completed the 5-year clinical trial protocol. Although individual responses were heterogeneous, reduction in both sIgE and circulating IL-4+ cells compared to the initial 1- to 4-month peak was maintained throughout the 3-year treatment period and for 2 years after discontinuation. Meanwhile, after a 2-year increase in sIgG4, the levels were stabilized during the third year and decreased post-therapy. FAB inhibition remained significantly inhibited throughout the study compared to preimmunotherapy in 83% of patients. A sustained regulatory T-cell response, after IT cessation, occurs in two-thirds of the patients. There was a statistical association between this regulatory response, the maintenance of lower eosinophil counts during grass pollen seasons, and sIgE titers lower than before immunotherapy treatment, and the latter were significantly associated with clinical response.

conclusionOur results suggest that the immunological mechanisms underlying the sustained response after 2 years of cessation of immunotherapy (3-year treatment period) are linked to the acquisition and maintenance of a regulatory T-cell response.

Indexed as

Sublingual ImmunotherapyAllergensEosinophilsFemaleHumansImmunoglobulin EImmunophenotypingLeukocyte CountLeukocytes, MononuclearMalePoaceaePollenRhinitis, Allergic, SeasonalT-Lymphocytes, RegulatoryAllergensImmunoglobulin Eallergic rhinitisIL-4regulatory T cellssIgEsIgG4sublingual immunotherapy

Identifiers

PMID30003552
PMCPMC6585999

What OpenQuestion holds

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LicenceCC BY-NC
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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.