CClinicalTrials.gg
Status unknownNCT05040854Updated Sep 16, 2021

Can we Rely on HLA to Predict Resistance to Biological Therapy in IBD Patients

An observational study in Inflammatory Bowel Diseases, sponsored by Centro Hospitalar Tondela-Viseu. Status unknown at 1 site in Portugal. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-09-16.

Sponsored by Centro Hospitalar Tondela-Viseu · Observational

The sponsor has not verified this record recently (last verified Sep 2021), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
600
Ages
18 Years and older
Sex
All
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Study summary

The investigators propose an observational study including patients with inflammatory bowel disease under biological therapy with anti-TNF, anti-integrin α₄β₇ or anti-interleukin 12-23 (Ustekinumab), followed by an external Gastroenterology consultation at Centro Hospitalar Tondela-Viseu.

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Conditions studied

  • Inflammatory Bowel Diseases

Keywords

  • Inflammatory Bowel Diseases
  • HLA
  • Biological therapy
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In context

Intestinal Diseases

963 studies on the registry are indexed under Intestinal Diseases; 174 are open to participants now.

This study's planned enrollment of 600 is above the median of 140 across 377 observational studies indexed under Intestinal Diseases.

Browse Intestinal Diseases studies →

Lead sponsor

Centro Hospitalar Tondela-Viseu is the lead sponsor of 5 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Patients with Inflammatory Bowel Disease under biological therapy with anti-TNF, anti-integrin α₄β₇ or and anti-interleukin 12-23, followed in a gastroenterology outpatient consultation at the Centro Hospitalar Tondela-Viseu.

Inclusion criteria

  • Patients with the diagnosis of IBD (according to ECCO diagnosis criteria);
  • Adult patients (over 18 years);
  • Full capability of signing informed consent.

Exclusion criteria

Exclusion Criteria:

  • Patients who refuse to participate in the study;
  • Patients submitted to prior biological therapy (only for the IBD-naive group)
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
600 participants (estimated)
Patient registry
No
Biospecimen retention
Samples with dna

Groups and cohorts

  • Healthy Subjects

    Blood donors

    Genetic: HLA-DQA1*05 and DRB1

  • IBD patients - under biological therapy

    Patients with IBD followed up in consultation on biological therapy with anti-TNF, anti-integrin α₄β₇ or anti-interleukin 12-23.

    Genetic: HLA-DQA1*05 and DRB1

  • IBD patients - naive

    Patients newly diagnosed with IBD and need for biological therapy with anti-TNF, anti-integrin α₄β₇ or anti-interleukin 12-23,

    Genetic: HLA-DQA1*05 and DRB1

Interventions

  • GeneticHLA-DQA1*05 and DRB1

    All patients will be asked to give blood samples to search for HLA-DQA1\*05 and DRB1

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What researchers measure

Primary outcomes

  1. Response to biological therapy

    To assess whether the presence of the HLA-DQA1\*05 and HLA DRB1 alleles in patients with inflammatory bowel disease is associated with primary failure or loss of response to biological therapy with anti-TNF (Infliximab and Adalimumab), anti-integrin α₄β₇ (Vedolizumab) or anti-interleukin 12-23 (Ustekinumab).

    Time frame: 36 months

Secondary outcomes

  1. Prevalence of HLA-DQ1*05 and DRB1

    To determine the prevalence of HLA-DQ1\*05 and DRB1 alleles in IBD population and to compare with a population of healthy blood donor patients.

    Time frame: 36 months

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Study locations

1 of 1 sites recruiting
  • Centro Hospitalar Tondela Viseu
    Viseu, 3504-509, Portugal
    Recruiting
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 16, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05040854
Lead sponsor
Centro Hospitalar Tondela-Viseu
Responsible party
Ana Carvalho (Principal Investigator, Centro Hospitalar Tondela-Viseu) — Principal investigator
First posted
Sep 10, 2021
Start date
Jul 1, 2021
Primary completion
Apr 1, 2024 (estimated)
Completion
Jul 1, 2024 (estimated)
Last update
Sep 16, 2021

Study contacts

Ana Catarina Carvalho, MD
Contact
8031@hstviseu.min-saude.pt
+351 232420500
Paula Ministro, MD
Contact
paulaministro@gmail.com
+351 2324200500
Paula Ministro, MD
study director · Centro Hospitalar Tondela-Viseu

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Sep 2021. You cannot join it, but the record below documents what was studied.

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