Investigating the link between Covid-19 and new onset type 1 diabetes

Covid-19 and Type 1 Diabetes - a Multicenter Study

Observational Esbjerg Hospital - University Hospital of Southern Denmark · NCT04623697

This study is trying to see if getting Covid-19 might cause new cases of type 1 diabetes in adults who are recently diagnosed.

Quick facts

Study typeObservational
Enrollment600 (estimated)
Ages18 Years and up
SexAll
SponsorEsbjerg Hospital - University Hospital of Southern Denmark Academic / other
Locations1 site (Esbjerg)
Trial IDNCT04623697 on ClinicalTrials.gov

What this trial studies

This observational study aims to explore the potential relationship between Covid-19 infection and the development of type 1 diabetes (T1D) in newly diagnosed adult patients. The study will involve clinical assessments and epidemiological follow-ups over a two-year period, focusing on patients diagnosed with T1D in Denmark and Portugal. Participants will undergo standard diagnostic procedures and mixed meal tolerance tests to evaluate beta-cell function at diagnosis and after one year. The research seeks to understand whether Covid-19 may trigger autoimmune responses leading to T1D.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older who have been newly diagnosed with type 1 diabetes according to standard medical criteria.

Not a fit: Patients with severe psychiatric disorders or other conditions that impair informed consent will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into the mechanisms linking viral infections like Covid-19 to the onset of type 1 diabetes, potentially guiding prevention strategies.

How similar studies have performed: While the relationship between viral infections and type 1 diabetes has been explored, this specific investigation into Covid-19's impact is novel and untested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* T1D patients diagnosed according to standard practice (including Hba1c, C-peptide, presence of GAD (or islet-cell) antibodies).
* Patient is attending a hospital unit in Denmark or Portugal, due to T1D.
* Age 18 years or above.

Exclusion Criteria:

* Severe psychiatric disorder or other conditions deemed to impair the patient's informed consent and participation in the study.

Where this trial is running

Esbjerg

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Covid19type1diabetesType 1 diabetes
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.